Climatological Report (Monthly)
Issued by NWS Marquette, MI

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000
CXUS53 KMQT 280141 AAB
CLMMQT

CLIMATE REPORT...FINAL
NATIONAL WEATHER SERVICE MARQUETTE MI
941 PM EDT TUE OCT 27 2015

...................................

...THE MARQUETTE MI CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1961 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              93   09/09/2002
 LOW               21   09/27/1965
HIGHEST            86   09/01        63      23       79  09/28
                                                          09/27
LOWEST             30   09/30        44     -14       33  09/22
                                                          09/13
                                                          09/12
AVG. MAXIMUM     71.7              65.8     5.9     65.7
AVG. MINIMUM     51.0              45.8     5.2     45.5
MEAN             61.4              55.8     5.6     55.6
DAYS MAX >= 90      0               0.1    -0.1        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      2               1.6     0.4        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.60   1968
 MINIMUM         1.21   1989
TOTALS           1.60              3.72   -2.12     4.10
DAILY AVG.       0.05              0.12   -0.07     0.14
DAYS >= .01         8              13.4    -5.4        9
DAYS >= .10         5               7.8    -2.8        6
DAYS >= .50         0               2.5    -2.5        2
DAYS >= 1.00        0               0.7    -0.7        1
GREATEST
 24 HR. TOTAL    0.82   09/06 TO 09/07

SNOWFALL (INCHES)
RECORDS
 TOTAL            1.7   1993
TOTALS            0.0               0.1    -0.1      0.0
SINCE 7/1         0.0               0.1    -0.1        T
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.0     0.0        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.0   MM

DEGREE_DAYS
HEATING TOTAL     165               297    -132      280
 SINCE 7/1        333               482    -149      527
COOLING TOTAL      65                21      44        5
 SINCE 1/1        247               241       6      152
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              MM
HIGHEST WIND SPEED/DIRECTION    MM        DATE   MM
HIGHEST GUST SPEED/DIRECTION    31/180    DATE  09/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER             MM
NUMBER OF DAYS FAIR          MM
NUMBER OF DAYS PC            MM
NUMBER OF DAYS CLOUDY        MM

AVERAGE RH (PERCENT)     MM

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       2
LIGHT RAIN               13     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      2
HAZE                      0

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

&&

...SEPTEMBER 2015 MONTHLY CLIMATE SUMMARY FOR UPPER MICHIGAN...
/THIS DISCUSSION DOES NOT INCLUDE CHIPPEWA AND MACKINAC COUNTIES/

...WELL ABOVE NORMAL MONTHLY MEAN TEMPERATURE...
...RECORD WARMEST SEPTEMBER AT NEWBERRY AND MANISTIQUE...
...SECOND WARMEST SEPTEMBER AT MARQUETTE CITY AND MUNISING...
...SECOND WARMEST SEPTEMBER AT THE MARQUETTE NWS AND HOUGHTON...
...THIRD WARMEST SEPTEMBER AT IRON MOUNTAIN...
...FOURTH WARMEST SEPTEMBER AT IRONWOOD...

...GENERALLY DRY OVER THE NORTH AND WETTER ACROSS THE SOUTH...
...THIRD DRIEST SEPTEMBER AT HOUGHTON...
...FIFTH DRIEST SEPTEMBER AT THE MARQUETTE NWS...

SEPTEMBER CLIMATE STATISTICS FOR THE MARQUETTE NWS IN NEGAUNEE
 TOWNSHIP

                                    NORMAL   DEPARTURE
AVERAGE TEMPERATURE         61.4     55.8   PLUS    5.6
AVERAGE HIGH TEMPERATURE    71.7     65.8   PLUS    5.9
AVERAGE LOW TEMPERATURE     51.0     45.8   PLUS    5.2
HEATING DEGREE DAYS          165      297  MINUS    132
COOLING DEGREE DAYS           65       21   PLUS     44
TOTAL PRECIPITATION         1.60     3.72  MINUS   2.12
TOTAL SNOWFALL               0.0      0.1  MINUS    0.1

HIGHEST TEMPERATURE:                    86 ON 9/1
LOWEST TEMPERATURE:                     30 ON 9/30
GREATEST CALENDAR DAY PRECIPITATION:  0.48 ON 9/7
GREATEST 24 HOUR PRECIPITATION:       0.82 ON 9/6-9/7
GREATEST CALENDAR DAY SNOWFALL:        0.0
PEAK WIND SPEED:     31 MPH FROM THE SOUTH ON 9/21

DAILY RECORD HIGH MINIMUM TEMPERATURE TIED ON 9/7...65 /OLD RECORD
                                                        65...1970/
DAILY RECORD HIGH MAXIMUM TEMPERATURE ON 9/15...84 /82...1991/
DAILY RECORD HIGH MINIMUM TEMPERATURE ON 9/16...61 /60...1992/
DAILY RECORD HIGH MAXIMUM TEMPERATURE ON 9/16...81 /79...2012/
DAILY RECORD HIGH MINIMUM TEMPERATURE ON 9/17...62 /61...1968/
DAILY RECORD HIGH MINIMUM TEMPERATURE ON 9/25...55 /54...2014/
DAILY RECORD HIGH MINIMUM TEMPERATURE ON 9/27...56 /55...1986/
SECOND HIGHEST SEPTEMBER MEAN TEMPERATURE...61.4 /RECORD 61.8...2004/
FIFTH LOWEST SEPTEMBER PRECIPITATION...1.60 /RECORD 1.21...1989/
---------------------------------------------------------------------
GREAT LAKES WATER LEVELS (FEET/METERS ABOVE MEAN SEA LEVEL)

                            LAKE SUPERIOR  LAKE MICHIGAN-HURON
09/01/15 DAILY MEAN         602.65/183.69     579.74/176.70
09/30/15 DAILY MEAN         602.61/183.67     579.59/176.66
AVG AUG 2015 DAILY MEAN     602.63/183.68     579.81/176.72
AVG SEP 2014 DAILY MEAN     602.68/183.70     579.11/176.51
LONG TERM SEP DAILY MEAN    602.13/183.53     579.07/176.50
MAXIMUM SEP DAILY MEAN      603.22/183.86     581.96/177.38
                                (1985)           (1986)
MINIMUM SEP DAILY MEAN      600.46/183.02     576.64/175.76
                                (2007)           (1964)

...GREAT LAKES WATER LEVELS REMAIN NEARLY STEADY AND WELL ABOVE
NORMAL IN SEPTEMBER...

WATER LEVELS ON THE WESTERN GREAT LAKES REMAINED NEARLY STEADY IN
SEPTEMBER...AS IS NORMAL. AT THE END OF SEPTEMBER...WATER LEVELS ON
LAKE SUPERIOR WERE 5 TO 6 INCHES ABOVE NORMAL AND ABOUT THE SAME AS
IN SEPTEMBER 2014. THE LEVEL ON LAKES MICHIGAN AND HURON WAS 6 TO
7 INCHES ABOVE AVERAGE ON 9/30 AND 5 TO 6 INCHES HIGHER THAN DURING
SEPTEMBER 2014.

OBTAIN GREAT LAKES WATER LEVEL DATA AS REPORTED BY THE U.S. ARMY
CORPS OF ENGINEERS AT

HTTP://WWW.LRE.USACE.ARMY.MIL/MISSIONS/GREATLAKESINFORMATION/
       GREATLAKESWATERLEVELS/CURRENTCONDITIONS.ASPX (ALL LOWER CASE).
---------------------------------------------------------------------
                     SEPTEMBER CLIMATE HIGHLIGHTS

HIGHEST REPORTED TEMPERATURE...91 AT PELKIE IN BARAGA COUNTY ON 9/5
                                AND AT AHMEEK IN KEWEENAW COUNTY ON
                                9/15 AND 9/16

LOWEST REPORTED TEMPERATURE...22 NEAR COVINGTON IN BARAGA COUNTY
                               ON 9/30

HIGHEST AVERAGE TEMPERATURE...64.5 DEGREES AT MARQUETTE AND BARAGA

LOWEST AVERAGE TEMPERATURE...59.5 DEGREES AT STAMBAUGH IN
                              IRON COUNTY

HIGHEST MONTHLY PRECIPITATION...5.93 INCHES AT GARDEN CORNERS IN
                                 DELTA COUNTY

LOWEST MONTHLY PRECIPITATION...0.60 INCH AT AHMEEK IN KEWEENAW COUNTY

A PERSISTENT UPPER RIDGE THAT DOMINATED CENTRAL AND EASTERN NORTH
AMERICA DOWNSTREAM OF A TROUGH OVER THE WEST IN SEPTEMBER 2015
RESULTED IN A TOP FIVE WARMEST SEPTEMBER AT MOST PLACES IN UPPER
MICHIGAN AND A RECORD WARMEST ONE AT NEWBERRY AND MANISTIQUE. MEAN
MONTHLY TEMPERATURES RANGING FROM 59.5 DEGREES AT STAMBAUGH TO 64.5
DEGREES AT MARQUETTE AND BARAGA ARE ABOUT 5 TO 7 DEGREES ABOVE THE
SEPTEMBER NORMAL. EVEN THOUGH THE TYPICAL SEPTEMBER AVERAGES 7 TO 9
DEGREES COOLER THAN THE EIGHTH MONTH...SEPTEMBER 2015 ENDED UP ONLY
1 TO 3 DEGREES COOLER THAN AUGUST 2015 DUE TO THE TENACITY OF WARMER
AIR UNDER THE UPPER RIDGE.

AS WAS THE CASE IN AUGUST...MONTHLY PRECIPITATION IN SEPTEMBER
TENDED TO BE GREATER OVER THE SOUTH HALF THAN ACROSS THE NORTH EVEN
THOUGH THE DOMINATING UPPER RIDGE TENDED TO SUPPRESS THE DEVELOPMENT
OF LARGER SCALE LOW PRESSURE SYSTEMS OVER THE ENTIRE AREA...
ESPECIALLY DURING THE SECOND HALF OF SEPTEMBER. SOME LOCATIONS
ACROSS THE KEWEENAW REPORTED LESS THAN AN INCH OF RAIN IN SEPTEMBER.
ONLY 0.95 INCH FELL AT HOUGHTON...THE THIRD LOWEST SEPTEMBER TOTAL
THERE SINCE 1887 AND A MERE QUARTER OF THE MONTHLY NORMAL. AHMEEK IN
KEWEENAW COUNTY PICKED UP ONLY 0.60 INCH. ON THE OTHER HAND...A
NUMBER OF PLACES OVER THE SOUTH HALF SAW 4 INCHES OR MORE OF RAIN
AND AS MUCH AS 5.93 INCHES AT GARDEN CORNERS IN DELTA COUNTY...ABOUT
150 PERCENT OF NORMAL THERE. THE MAIN CAUSE OF THIS SHARP DIFFERENCE
IN MONTHLY PRECIPITATION BETWEEN THE NORTH AND SOUTH WAS THE
OCCURRENCE OF HEAVIER RAIN UNDER THE SHOWERS AND THUNDERSTORMS THAT
PASSED OVER THE SOUTH ON 9/2 INTO 9/3...9/6 INTO 9/7 AND 9/9 INTO
9/10.

THERE WERE FOUR WARM SPELLS OF NOTE IN SEPTEMBER. MEAN DAILY
TEMPERATURES ON 9/1...OVER LABOR DAY WEEKEND FROM 9/5 THROUGH 9/7...
ON 9/14 THROUGH 9/17 AND THEN AGAIN ON 9/25 INTO 9/28 RAN FROM 10 TO
15 DEGREES ABOVE NORMAL. AT LEAST ONE OR TWO LOCATIONS SAW THE
THERMOMETER READ AS HIGH AS 90 ON 9/1...9/5...9/15 AND 9/16. LOW
TEMPERATURES ON MANY DAYS DURING THESE WARM PERIODS WERE 60 DEGREES
OR HIGHER. SEVERAL LOCATIONS...INCLUDING MANISTIQUE...NEWBERRY...
MUNISING AND THE MARQUETTE NWS...SAW A RECORD NUMBER OF SEPTEMBER
DAYS WITH A MINIMUM TEMPERATURE OF 60 OR HIGHER IN 2015. MANISTIQUE
LED THE PACK WITH 13 DAYS.

THE ONLY COOL PERIODS DURING SEPTEMBER OCCURRED WHEN THE UPPER RIDGE
GAVE WAY TO AN UPPER TROUGH IN THE GREAT LAKES FROM 9/10 INTO 9/13
AND AT MONTHS END ON 9/29 THROUGH 9/30. MEAN DAILY TEMPERATURES
AVERAGED UP TO 10 DEGREES BELOW NORMAL DURING THESE TIMES. AT A FEW
INTERIOR LOCATIONS...THE MERCURY FELL INTO THE 20S NEAR SUNRISE ON
9/12...9/13 AND 9/30.

NOTABLE PRECIPITATION EVENTS IN SEPTEMBER WERE RELATIVELY FEW.
CLUSTERS OF SHOWERS AND THUNDERSTORMS ASSOCIATED WITH A DISTURBANCE
MOVING THROUGH THE UPPER GREAT LAKES AND OVER THE TOP OF THE UPPER
RIDGE IN THE UNITED STATES DROPPED SOME HEAVY RAIN FROM 9/2 INTO THE
EARLY MORNING ON 9/3 OVER MAINLY THE SOUTH HALF. AN INCH OR MORE OF
RAIN FELL AT MANY PLACES IN THIS AREA...WITH AS MUCH AS 2.97 INCHES
NEAR PEAVY FALLS IN IRON COUNTY. A FEW OF THE STRONGER THUNDERSTORMS
TRACKING NEAR THE WISCONSIN BORDER ALSO TURNED SEVERE IN THE MORNING
ON 9/2 AND DROPPED HAIL AS LARGE AS GOLF BALLS NEAR POWERS IN
MENOMINEE COUNTY.

NUMEROUS SHOWERS AND THUNDERSTORMS ACCOMPANIED THE PASSAGE OF A COLD
FRONT ACROSS THE UPPER PENINSULA FROM LATE ON 9/6 INTO 9/7. SOME
PLACES OVER THE WEST PICKED UP AN INCH OR MORE OF RAIN. IRONWOOD WAS
INUNDATED WITH 3.45 INCHES OF RAIN...A TOTAL THAT ESTABLISHED A NEW
24-HOUR RECORD FOR ANY DAY IN SEPTEMBER AT THAT LOCATION. SOME
SHOWERS AND THUNDERSTORMS AHEAD OF THE COLD FRONT RESPONSIBLE FOR
THE BRIEF MID-MONTH COOL SPELL TRACKED OVER UPPER MICHIGAN ON 9/9
INTO 9/10. THIS TIME...THE HEAVIEST RAIN FELL OVER THE SOUTHEAST
HALF...WHERE GARDEN CORNERS MEASURED 2.11 INCHES.

A WAVE OF LOW PRESSURE MOVING NORTHEAST ALONG A STATIONARY FRONT IN
THE CENTRAL GREAT LAKES BROUGHT A PERIOD OF RAIN TO MAINLY THE
SOUTHEAST HALF OF UPPER MICHIGAN AGAIN FROM LATE ON 9/18 INTO 9/19.
NEWBERRY SAW 0.97 INCH OF RAIN DURING THIS EVENT. THE LAST
WIDESPREAD RAIN TO IMPACT THE AREA IN SEPTEMBER OCCURRED ON 9/28 AS
THE COLD FRONT MARKING THE LEADING EDGE OF THE CHILLY CANADIAN
AIRMASS THAT INVADED AT THE END OF THE MONTH CROSSED THE AREA.
ANOTHER LOW PRESSURE SYSTEM MOVING ALONG THIS FRONT CAUSED A MORE
WIDESPREAD RAIN ACROSS MAINLY THE SOUTHEAST HALF AGAIN. SENEY IN
SCHOOLCRAFT COUNTY REPORTED AS MUCH AS 1.10 INCHES.
---------------------------------------------------------------------
                ...SEPTEMBER 2015 MEAN TEMPERATURE...

                       ...TOP FIVE WARMEST...

               OBSERVED  NORMAL  DEPARTURE    RECORD      2015 RANK

NEWBERRY         63.0     57.1     +5.9    62.9 /2002/ RECORD WARMEST

MANISTIQUE       61.9     57.0     +4.9    57.8 /1992/ RECORD WARMEST

HOUGHTON         62.5     55.4     +7.1    62.7 /1908/    2ND WARMEST

MARQUETTE NWS    61.4     55.8     +5.6    61.8 /2004/    2ND WARMEST

MARQUETTE CITY   64.5     59.4     +5.1    64.6 /2005/    2ND WARMEST

MUNISING         62.3     57.3     +5.0    63.3 /1931/    2ND WARMEST

IRON MOUNTAIN    63.9     57.6     +6.3    65.4 /1908/    3RD WARMEST

IRONWOOD         61.9     55.7     +6.2    63.4 /1931/    4TH WARMEST

                  ...SEPTEMBER 2015 PRECIPITATION...

           ...DRY OVER THE NORTH AND WETTER TO THE SOUTH...

               OBSERVED  NORMAL  DEPARTURE    RECORD      2015 RANK

HOUGHTON         0.95     3.45    -2.50    0.87 /1887/    3RD DRIEST

MARQUETTE NWS    1.60     3.72    -2.12    1.21 /1989/    5TH DRIEST

MUNISING         2.19     4.07    -1.88    0.59 /1967/   14TH DRIEST

MARQUETTE CITY   1.67     3.16    -1.49    0.53 /1893/   22ND DRIEST

MANISTIQUE       2.78     3.76    -0.98    0.74 /1967/      ****

NEWBERRY         3.65     3.81    -0.16    0.51 /2009/      ****

IRON MOUNTAIN    3.54     3.62    -0.08    0.54 /1909/      ****

IRONWOOD         4.90     4.06    +0.84   10.74 /1926/  25TH WETTEST

**** NOT IN TOP 25
---------------------------------------------------------------------
SOME OTHER TEMPERATURE AND PRECIPITATION OBSERVATIONS ACROSS UPPER
MICHIGAN IN SEPTEMBER 2015 INCLUDE:

IRONWOOD...AVERAGE TEMPERATURE 61.9 (6.2 DEGREES ABOVE NORMAL)
           PRECIPITATION 4.90 INCHES (0.84 INCH ABOVE NORMAL)

WATERSMEET (GOGEBIC COUNTY)...PRECIPITATION 3.29 INCHES

GREENLAND (ONTONAGON COUNTY)...AVERAGE TEMPERATURE 61.8 DEGREES
                               PRECIPITATION 4.99 INCHES

BERGLAND DAM (ONTONAGON COUNTY)...AVERAGE TEMPERATURE 60.9 DEGREES
                                  PRECIPITATION 3.69 INCHES

HOUGHTON COUNTY...AVERAGE TEMPERATURE 62.5 (7.1 DEGREES ABOVE NORMAL)
 AIRPORT          PRECIPITATION 0.95 INCH (2.50 INCH BELOW NORMAL)

AHMEEK (KEWEENAW COUNTY)...AVERAGE TEMPERATURE 63.4 DEGREES
                           PRECIPITATION 0.60 INCH

COPPER HARBOR...AVERAGE TEMPERATURE 64.4 DEGREES
                PRECIPITATION 1.03 INCHES

JACOBSVILLE (HOUGHTON COUNTY)...AVERAGE TEMPERATURE 61.2 DEGREES
                                PRECIPITATION 2.73 INCHES

BARAGA...AVERAGE TEMPERATURE 64.5 DEGREES
         PRECIPITATION 1.65 INCHES

HERMAN (BARAGA COUNTY)...PRECIPITATION 1.98 INCHES

CLARKSBURG (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 60.7 DEGREES
                                PRECIPITATION 1.35 INCHES

BIG BAY (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 64.1 DEGREES
                             PRECIPITATION 1.60 INCHES

MARQUETTE CITY...AVERAGE TEMPERATURE 64.5 (5.1 DEGREES ABOVE NORMAL)
                 PRECIPITATION 1.67 INCHES (1.49 INCHES BELOW NORMAL)

HARVEY (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 63.8 DEGREES
                            PRECIPITATION 1.61 INCHES

CHATHAM (ALGER COUNTY)...AVERAGE TEMPERATURE 63.1 DEGREES
                         PRECIPITATION 2.41 INCHES

MUNISING...AVERAGE TEMPERATURE 62.3 (5.0 DEGREES ABOVE NORMAL)
           PRECIPITATION 2.19 INCHES (1.88 INCHES BELOW NORMAL)

NEWBERRY...AVERAGE TEMPERATURE 63.0 (5.9 DEGREES ABOVE NORMAL)
           PRECIPITATION 3.65 INCHES (0.16 INCH BELOW NORMAL)

STAMBAUGH (IRON COUNTY)...AVERAGE TEMPERATURE 59.5 DEGREES
                          PRECIPITATION 3.64 INCHES

AMASA (IRON COUNTY)...AVERAGE TEMPERATURE 61.3 DEGREES
                      PRECIPITATION 2.10 INCHES

FORD AIRPORT...AVERAGE TEMPERATURE 62.6 DEGREES
 NEAR IRON MOUNTAIN

IRON MOUNTAIN...AVERAGE TEMPERATURE 63.9 (6.3 DEGREES ABOVE NORMAL)
                PRECIPITATION 3.54 INCHES (0.08 INCH BELOW NORMAL)

DAGGETT (MENOMINEE COUNTY)...PRECIPITATION 4.05 INCHES

MENOMINEE...PRECIPITATION 3.68 INCHES

ESCANABA...PRECIPITATION 3.66 INCHES

GLADSTONE (DELTA COUNTY)...PRECIPITATION 3.79 INCHES

GARDEN CORNERS (DELTA COUNTY)...AVERAGE TEMPERATURE 63.0 DEGREES
                                PRECIPITATION 5.93 INCHES

COOKS (SCHOOLCRAFT COUNTY)...PRECIPITATION 3.50 INCHES

MANISTIQUE...AVERAGE TEMPERATURE 61.9 (4.9 DEGREES ABOVE NORMAL)
             PRECIPITATION 2.78 INCHES (0.98 INCH BELOW NORMAL)

                        SEPTEMBER WEATHER SUMMARY

MORNING FOG AND LOW CLOUDS ON 9/1 GAVE WAY TO A PARTLY TO MOSTLY
SUNNY AND VERY WARM...RATHER HUMID AFTERNOON AS UPPER MICHIGAN WAS
UNDER THE INFLUENCE OF A STEADY SOUTHWEST WIND BETWEEN HIGH PRESSURE
OVER THE MID-ATLANTIC STATES AND AN APPROACHING WEAK COLD FRONT FROM
THE WEST. AT MOST PLACES AWAY FROM THE MODERATING INFLUENCE OF LAKE
MICHIGAN...THE THERMOMETER ROSE INTO THE SUMMER-LIKE 80S. READINGS
EVEN REACHED 90 AT PELKIE IN BARAGA COUNTY. MEAN DAILY TEMPERATURES
WERE UP TO 15 DEGREES ABOVE NORMAL. AS THE FRONT EDGED CLOSER TO
WESTERN UPPER MICHIGAN IN THE AFTERNOON...MORE CLOUDS AND A FEW
LIGHT SHOWERS MOVED INTO THAT AREA. ANY RAINFALL AMOUNTED TO NO MORE
THAN A FEW HUNDREDTHS OF AN INCH. SOME LOCALLY DENSE FOG REDEVELOPED
DURING THE NIGHT ON 9/1-9/2 FOLLOWING THE PASSAGE OF THE WEAK COLD
FRONT...WHICH STALLED JUST TO THE SOUTH. AS A STRONGER DISTURBANCE
RIDING OVER THE TOP OF THE UPPER RIDGE DOMINATING THE EASTERN U.S.
APPROACHED DURING THE NIGHT...SOME SHOWERS AND THUNDERSTORMS
DEVELOPED NEAR THE WISCONSIN BORDER EARLY ON 9/2. NUMEROUS SHOWERS
AND THUNDERSTORMS ASSOCIATED WITH THIS DISTURBANCE THEN IMPACTED
MAINLY THE WEST AND CENTRAL INTO THE EARLY MORNING HOURS ON 9/3. THE
HEAVIEST RAIN FELL CLOSER TO THE STATIONARY FRONT IN WISCONSIN
AND ACROSS THE SOUTH CENTRAL...WHERE RAINFALL OF 1 TO 2 INCHES WAS
COMMON. SOME OF THE MORE IMPRESSIVE TOTALS INCLUDE 2.97 INCHES AT
PEAVY FALLS IN DICKINSON COUNTY...2.93 INCHES AT SPALDING IN
MENOMINEE COUNTY...2.90 INCHES AT DAGGETT IN MENOMINEE COUNTY...2.55
INCHES NEAR STAGER IN IRON COUNTY...2.47 INCHES AT STAMBAUGH AND
CASPIAN IN IRON COUNTY...2.32 INCHES NEAR WATERSMEET IN GOGEBIC
COUNTY...2.40 INCHES AT PARENT BAY IN SCHOOLCRAFT COUNTY...2.24
INCHES AT RANDVILLE IN DICKINSON COUNTY AND 2.17 INCHES AT ESCANABA.
THIS HEAVY RAIN CAUSED SOME MINOR FLOODING AT A FEW LOCATIONS. THE
STRONGER STORMS ALSO DROPPED SOME LARGE HAIL AT SEVERAL SPOTS IN
MENOMINEE COUNTY...INCLUDING HAIL THE SIZE OF GOLF BALLS AT POWERS.
AWAY FROM THE SOUTH CENTRAL...RAINFALL TOTALS DIMINISHED TO LESS THAN
0.10 INCH OVER THE KEWEENAW. ALTHOUGH THE CLOUDS AND RAIN HELD HIGH
TEMPERATURES MUCH LOWER THAN ON 9/1...THE DAY WAS STILL HUMID AND
RELATIVELY WARM BECAUSE MORNING LOWS AS HIGH AS 65 OVER THE SOUTH
CENTRAL WERE SO MUCH ABOVE NORMAL. MEAN DAILY TEMPERATURES ON 9/2
RAN 5 TO 10 DEGREES ABOVE AVERAGE.

CLEARING IN THE EARLY MORNING HOURS ON 9/3 FOLLOWING THE DEPARTING
DISTURBANCE RESULTED IN THE DEVELOPMENT OF AREAS OF DENSE FOG AND LOW
CLOUDS...WHICH DISSIPATED AFTER SUNRISE AS WEAK HIGH PRESSURE MOVED
INTO THE AREA. EVEN THOUGH THE AFTERNOON WAS NOT AS WARM OR HUMID AS
PREVIOUS DAYS...A FEW SHOWERS AND THUNDERSTORMS DEVELOPED IN THE
AFTERNOON AND EARLY EVENING OVER THE SOUTH CENTRAL WITH DAYTIME
HEATING. RAINFALL WAS GENERALLY LIGHT AND UNDER 0.10 INCH. HIGH
PRESSURE BUILDING OVER THE UPPER LAKES THEN BROUGHT MOSTLY CLEAR AND
PLEASANTLY WARM CONDITIONS ON 9/4. MEAN DAILY TEMPERATURES ON 9/3
AND 9/4 AVERAGED ABOUT 5 DEGREES ABOVE NORMAL.

AS THE HIGH PRESSURE SHIFTED TO THE EAST...A SOUTH WIND BROUGHT A
RETURN OF WARMER AND MORE HUMID...SUMMER-LIKE WEATHER FOR LABOR DAY
WEEKEND. THE THERMOMETER TOPPED OUT AT THE MONTHLY HIGH OF 91 AT
PELKIE IN BARAGA COUNTY ON 9/5...WITH READINGS MAINLY IN THE 80S
ELSEWHERE AWAY FROM THE MODERATING INFLUENCE OF LAKE MICHIGAN.
ALTHOUGH THERE WERE NO 90-DEGREE MAXIMUMS ON 9/6...TEMPERATURES
PEAKED IN THE 80S AGAIN AT MOST LOCATIONS. THERE WERE SOME ISOLATED
SHOWERS AND THUNDERSTORMS OVER WESTERN UPPER MICHIGAN ON 9/5 INTO 9/6
AHEAD OF A COLD FRONT MOVING SLOWLY EAST THROUGH MINNESOTA...BUT NO
PLACE REPORTED MORE THAN 0.10 TO 0.15 INCH OF RAIN. DURING THIS
TIME...THE HUMID SOUTH WINDS OFF LAKE MICHIGAN BROUGHT SOME LOW
CLOUDS AND FOG TO THE EAST HALF. THE MINNESOTA COLD FRONT CROSSED THE
UPPER PENINSULA DURING THE NIGHT ON 9/6-9/7...PASSING NEWBERRY ON
LABOR DAY MORNING. NUMEROUS SHOWERS AND THUNDERSTORMS PRECEDED THIS
FRONT. SOME OF THE STORMS DROPPED TORRENTIAL RAINS OVER THE WEST...
WHERE SEVERAL PLACES PICKED UP AN INCH OR MORE OF RAIN. IRONWOOD WAS
INUNDATED WITH 3.45 INCHES OF RAIN...A TOTAL THAT ESTABLISHED A NEW
24-HOUR RECORD FOR ANY DAY IN SEPTEMBER AT THAT LOCATION. GREENLAND
IN ONTONAGON COUNTY LOGGED AN IMPRESSIVE 2.54 INCHES. PRECIPITATION
TOTALS AMOUNTED TO 0.25 TO 0.75 INCH AT MOST PLACES. MORNING LOW
TEMPERATURES ON 9/7 WERE MAINLY IN THE 60S AND JUST BELOW 70 AT SOME
PLACES NEAR LAKE MICHIGAN...INCLUDING 69 AT STONINGTON IN DELTA
COUNTY. ALTHOUGH A WEAK HIGH PRESSURE RIDGE TRAILING THE COLD FRONT
MOVED OVERHEAD ON LABOR DAY AND BROUGHT SOMEWHAT COOLER WEATHER...THE
DAY WAS STILL WARMER THAN NORMAL AND HUMID. SO...MORE ISOLATED
SHOWERS AND THUNDERSTORMS POPPED UP OVER THE SOUTH CENTRAL AND EAST
DURING THE AFTERNOON AND EVENING. SOME PLACES REPORTED AROUND 0.25
INCH OF RAIN UNDER THESE SHOWERS. MEAN DAILY TEMPERATURES ON 9/5
THROUGH 9/7 WERE AROUND 15 DEGREES ABOVE NORMAL DURING THE SUMMER-
LIKE LABOR DAY WEEKEND IN 2015.

ANOTHER COLD FRONT MOVED ACROSS THE UPPER GREAT LAKES ON 9/8...
ACCOMPANIED BY A GOOD DEAL OF CLOUDS AND A BAND OF SHOWERS.
PRECIPITATION DURING THE DAY RANGED FROM NO MORE THAN ABOUT 0.10 TO
0.25 INCH OVER THE WEST TO 0.25 TO 0.75 INCH AT MOST SPOTS ACROSS
THE CENTRAL AND EAST. WITCH LAKE IN MARQUETTE COUNTY REPORTED THE
MOST WITH 1.03 INCHES OF RAIN. CLEARING AND COOLER WEATHER FOLLOWED
THE FRONTAL PASSAGE DURING THE NIGHT ON 9/8-9/9...SETTING THE STAGE
FOR A MOSTLY SUNNY DAY ON 9/9 AS A TRAILING HIGH PRESSURE RIDGE
PASSED THROUGH THE UPPER LAKES.

CLOUDS BEGAN TO INCREASE LATE ON 9/9 IN ADVANCE OF THE NEXT
DISTURBANCE AND COLD FRONT APPROACHING THE GREAT LAKES. AN AREA OF
SHOWERS AND A THUNDERSTORM OR TWO IN ADVANCE OF THESE FEATURES
IMPACTED MAINLY THE SOUTH CENTRAL AND EAST DURING THE NIGHT ON 9/9-
9/10...DROPPING 0.10 TO 0.50 INCH OF RAIN AT MANY PLACES IN THAT
AREA. SCATTERED SHOWERS AND STORMS THAT FORMED RIGHT ON THE COLD
FRONT AS IT PASSED DURING THE DAY ON 9/10 HIT MAINLY THE SOUTH
CENTRAL AND EAST AGAIN ON 9/10. GARDEN CORNERS IN DELTA COUNTY WAS
INUNDATED WITH 1.64 INCHES OF RAIN UNDER ONE OF THE HEAVIER SHOWERS.
SKIES TURNED MOSTLY SUNNY FOLLOWING THE FRONTAL PASSAGE. THE MERCURY
AVERAGED NEAR NORMAL READINGS ON BOTH 9/9 AND 9/10.

ALTHOUGH MOSTLY CLEAR SKIES PREVAILED DURING THE EVENING ON 9/10...
A PUSH OF COOLER CANADIAN AIR IN THE STEADY NORTHWEST FLOW AHEAD OF
HIGH PRESSURE MOVING EAST FROM THE NORTHERN PLAINS CAUSED SOME LAKE
EFFECT CLOUDS AND SHOWERS DURING THE EARLY MORNING ON 9/11. THESE
CLOUDS AND SCATTERED SHOWERS WERE MOST PREVALENT OVER THE NORTHERN
TIER AND LINGERED INTO THE AFTERNOON ON 9/11 BEFORE THE CLOSER
APPROACH OF THE HIGH BROUGHT A RETURN OF MOSTLY SUNNY CONDITIONS BY
LATE IN THE DAY. AS MUCH AS 0.25 TO 0.50 INCH OF RAIN FELL UNDER
SOME OF THE HEAVIER SHOWERS NEAR MARQUETTE...BUT MOST OTHER PLACES
MEASURED NO MORE THAN ABOUT 0.10 INCH OF RAIN ON 9/11. THE OVERNIGHT
ON 9/11-9/12 WAS A CHILLY ONE AS THE CANADIAN HIGH PRESSURE MOVED
NEARLY OVERHEAD. AT SOME OF THE COLDER INTERIOR LOCATIONS...THE
THERMOMETER READ IN THE 20S AND AS LOW AS 28 NEAR COVINGTON IN
BARAGA COUNTY AND NEWBERRY.

THE CANADIAN HIGH PRESSURE SYSTEM DRIFTED SLOWLY TO OVER THE MID
ATLANTIC STATES BY 9/15. THE SOUTHWEST FLOW AROUND THIS DEPARTING
HIGH BROUGHT A WARMING TREND TO UPPER MICHIGAN AND A PERIOD OF CLEAR
TO PARTLY CLOUDY SKIES UNDER A BUILDING UPPER RIDGE. AFTER ANOTHER
COOL DAY ON 9/12...MORNING LOWS ON 9/13 DIPPED INTO THE 20S AT SOME
OF THE COLDER INTERIOR LOCATIONS ACROSS THE INTERIOR EAST...REACHING
24 AT A SPOT NEAR NEWBERRY. BUT BY 9/15...THE INCOMING AIRMASS WAS
WARM ENOUGH TO LIFT THE MERCURY WELL INTO THE 80S AWAY FROM LAKE
MICHIGAN MODERATION AND ALL THE WAY TO THE MONTHLY HIGH OF 91 AT
AHMEEK IN KEWEENAW COUNTY. AT SOME PLACES...NEW DAILY RECORD MAXIMUM
TEMPERATURES WERE ESTABLISHED ON 9/15. SOUTHWEST WINDS GUSTING AS
HIGH AS 30 MPH ON 9/15 TOOK AN EDGE OFF THE SUMMER-LIKE HEAT. MEAN
DAILY TEMPERATURES AROUND 10 DEGREES BELOW NORMAL ON 9/12 REBOUNDED
TO NEAR AVERAGE ON 9/13 BEFORE RISING TO 10 DEGREES ABOVE NORMAL ON
9/14 AND THEN 15 DEGREES ABOVE THE MEAN ON 9/15.

THE STRONG SOUTHWEST FLOW BETWEEN THE HIGH MOVING SLOWLY OFF THE
EAST COAST AND AN APPROACHING COLD FRONT BROUGHT MORE UNSEASONABLE
WARMTH...AND AT SOME PLACES RECORD WARMTH...TO UPPER MICHIGAN ON
9/16 AND 9/17. MEAN DAILY TEMPERATURES ON BOTH DAYS RAN AROUND 15
DEGREES ABOVE NORMAL. SINCE THIS FLOW TAPPED MOISTER AIR...THERE
WERE MORE CLOUDS AND EVEN SOME SHOWERS AND THUNDERSTORMS...MAINLY
OVER THE WEST CLOSER TO THE APPROACHING FRONT. ANY RAINFALL THROUGH
DAYBREAK ON 9/17 WAS UNDER 0.10 INCH. AFTER TEMPERATURES FELL NO
LOWER THAN ABOUT 70 AT SOME PLACES OVER THE WEST EARLY ON 9/16 AS
WINDS GUSTED AS HIGH AS 30 TO 35 MPH...AHMEEK REPORTED ANOTHER 91-
DEGREE HIGH THAT AFTERNOON. THE OVERNIGHT ON 9/16-9/17 FEATURED MORE
RECORD WARM LOW TEMPERATURES AS HIGH AS 70 NEAR THE GREAT LAKES
SHORES. THE SHOWERS AND THUNDERSTORMS BECAME MORE NUMEROUS ON 9/17
INTO THE EARLY MORNING HOURS ON 9/18 AS THE FRONT MOVED CLOSER AND
ACROSS THE U.P. BY DAYBREAK ON 9/18. THE WARM AND HUMID AIRMASS
FUELED SOME LOCALLY HEAVY RAIN UNDER THE STRONGER SHOWERS AND
STORMS. AS MUCH AS 2.60 INCHES AND 1.42 INCHES OF RAIN FELL NEAR
ONTONAGON AND SPALDING IN MENOMINEE COUNTY RESPECTIVELY...BUT MOST
PLACES PICKED UP LESS THAN 0.50 INCH. THE FEWEST SHOWERS FELL IN A
SWATH OVER THE CENTRAL FROM IRON RIVER AND IRON MOUNTAIN TO
MARQUETTE...WHERE MOST PLACES MEASURED LESS THAN 0.10 INCH. ONE OF
THE STRONGER STORMS OVER MENOMINEE COUNTY TURNED SEVERE...CAUSING
DAMAGING WINDS NEAR STEPHENSON.

CLEARING BEHIND THE COLD FRONT OVERSPREAD UPPER MICHIGAN IN THE
MORNING ON 9/18...WHICH THEN ENDED UP MOSTLY SUNNY AS TRAILING HIGH
PRESSURE MOVED OVERHEAD. BUT SINCE THE COLD FRONT STALLED IN THE
CENTRAL GREAT LAKES...A WAVE OF LOW PRESSURE MOVING NORTHEAST ALONG
THAT BOUNDARY BROUGHT AN INCREASE IN CLOUDS IN THE EVENING ON 9/18
AND THEN SOME SHOWERS OVER MAINLY THE CENTRAL AND EAST INTO THE MID
MORNING ON 9/19. MANY LOCATIONS EAST OF A LINE FROM MARQUETTE TO
MENOMINEE PICKED UP 0.25 TO 0.35 INCH OF RAIN DURING THIS EVENT.
AFTER THE MORNING RAIN OVER THE EAST ENDED EARLY ON 9/19...SKIES
TURNED MOSTLY SUNNY AS HIGH PRESSURE MOVED EAST FROM THE PLAINS.
MEAN DAILY TEMPERATURES RAN ABOUT 5 DEGREES ABOVE NORMAL ON 9/18 BUT
THEN FELL TO NEAR AVERAGE ON 9/19.

THE HIGH PRESSURE MOVED ACROSS THE LOWER GREAT LAKES ON 9/20 AND
INTO NEW ENGLAND ON 9/21...RESULTING IN DRY...PLEASANTLY WARM
WEATHER OVER UPPER MICHIGAN UNDER MOSTLY CLEAR SKIES. THE
THERMOMETER READ ABOUT 5 DEGREES ABOVE AVERAGE ON BOTH 9/20 AND
9/21. SOUTHWEST WINDS ON 9/21 GUSTED AS HIGH AS 30 MPH. A COLD FRONT
CROSSED THE U.P. ON 9/22...BUT THE AIRMASS IN PLACE WAS SO DRY THAT
ONLY SOME CLOUDS AND ISOLATED SHOWERS ACCOMPANIED ITS PASSAGE. ANY
RAINFALL WAS NO MORE THAN A FEW HUNDREDTHS OF AN INCH. READINGS FELL
CLOSE TO NORMAL ON 9/22 WITH THE ARRIVAL OF SOME COOLER AIR BEHIND
THE PASSING FRONT.

ON 9/23 AND 9/24...HIGH PRESSURE MOVED ACROSS ONTARIO WHILE A WEAK
LOW PRESSURE WAVED FORMED ON A STATIONARY FRONT OVER MINNESOTA AND
WISCONSIN. THE HIGH PRESSURE SYSTEM BROUGHT PARTLY CLOUDY SKIES AND
DRY WEATHER TO THE NORTHEAST HALF OF UPPER MICHIGAN...BUT MORE
CLOUDS AND SOME SCATTERED SHOWERS PREVAILED TO THE SOUTHWEST CLOSER
TO THE LOW PRESSURE. THE WARM FRONT SHIFTED SLOWLY TO THE NORTHEAST
AND OVER UPPER MICHIGAN ON 9/25...SO THE THICKER CLOUDS AND SHOWERS
OVERSPREAD THE KEWEENAW LATE ON 9/24 BEFORE THE PRECIPITATION TENDED
TO DIMINISH ALTOGETHER ON 9/25 UNDER A BUILDING UPPER RIDGE. UP TO
0.10 TO 0.15 INCH OF LIGHT RAIN FELL OVER THE WEST DURING THIS 3-DAY
PERIOD WHILE THE CENTRAL AND EAST STAYED DRY. A NEAR NORMAL MEAN
DAILY TEMPERATURE ON 9/23 ROSE TO 5 TO 10 DEGREES ABOVE AVERAGE ON
9/24 AND 9/25 AS SOME WARMER AIR RETURNED WITH THE FRONT.

DRY AND UNSEASONABLY WARM WEATHER PREVAILED ON 9/26 AND 9/27 AS A
HIGH PRESSURE RIDGE STRETCHING FROM NEW ENGLAND INTO THE UPPER GREAT
LAKES DOMINATED. EXCEPT FOR SOME LOW CLOUDS AND LOCALLY DENSE FOG
THAT FORMED DURING THE MORNINGS...SKIES WERE MOSTLY CLEAR. MEAN
DAILY TEMPERATURES ON 9/26 AND 9/27 RAN 10 TO 15 DEGREES ABOVE
NORMAL. CLOUDS AND SOME SCATTERED SHOWERS...WHICH WERE MOST NUMEROUS
OVER THE SOUTHEAST HALF OF UPPER MICHIGAN...ACCOMPANIED THE PASSAGE
OF A COLD FRONT ON 9/28 THAT WEAKENED THE UPPER RIDGE AND ENDED THE
LAST WARM SPELL OF THE MONTH. MOST PLACES PICKED UP 0.10 TO 0.50 INCH
OF RAIN ON 9/28...BUT AS MUCH AS 1.10 INCHES FELL AT SENEY IN
SCHOOLCRAFT COUNTY BY THE TIME THE PRECIPITATION DIMINISHED OVER THE
EAST LATE IN THE DAY. THE DAY ON 9/29 TURNED OUT MOSTLY SUNNY AND
MUCH COOLER AS CANADIAN HIGH PRESSURE APPROACHED FROM THE NORTHWEST.
THE EXTENDED 2015 GROWING SEASON ENDED AT MANY PLACES AWAY FROM THE
MODERATING INFLUENCE OF THE GREAT LAKES DURING THE NIGHT ON 9/29-9/30
AS THE COOL CANADIAN HIGH PRESSURE SETTLED OVER THE UPPER PENINSULA.
UNDER MOSTLY CLEAR SKIES...THE MERCURY PLUNGED INTO THE 20S AT MANY
OF THE INTERIOR COLDER LOCATIONS AND ALL THE WAY TO 22 NEAR COVINGTON
IN BARAGA COUNTY. THE DAY ENDED ON A PARTLY TO MOSTLY SUNNY AND COOL
NOTE ON 9/30 UNDER THE HIGH PRESSURE IN ONTARIO. MEAN DAILY
TEMPERATURES WERE 5 TO 10 DEGREES ABOVE NORMAL ON 9/28 BUT THEN FELL
TO 5 TO 10 DEGREES BELOW AVERAGE ON 9/29 AND 9/30.

                          NOVEMBER FORECAST

THE CLIMATE PREDICTION CENTER (CPC) IS FORECASTING A GREATER THAN
CLIMATOLOGICAL CHANCE OF AN ABOVE NORMAL MONTHLY MEAN TEMPERATURE
AND BELOW NORMAL PRECIPITATION OVER ALL OF UPPER MICHIGAN IN
NOVEMBER 2015.

                         NOVEMBER CLIMATOLOGY

RESIDENTS OF UPPER MICHIGAN FEEL WINTER`S TIGHTENING GRIP MORE AND
MORE OFTEN DURING NOVEMBER AS THE SUN`S WARMING RAYS BECOME
INCREASINGLY FEEBLE. POSSIBLE SUNSHINE DECLINES FROM 605 MINUTES ON
11/1 TO 533 MINUTES ON 11/30. AS A RESULT...THE AVERAGE TEMPERATURE
DURING NOVEMBER IS AS MUCH AS 15 DEGREES LOWER THAN IN OCTOBER.

DESPITE THE INEVITABLE DECLINE TOWARD WINTER...PLEASANTLY MILD
WEATHER OFTEN MAKES AN APPEARANCE DURING THE ELEVENTH MONTH.
NOVEMBER 2001 GOES DOWN IN THE RECORD BOOKS AS THE WARMEST EVER AT
ALL REPORTING STATIONS WITH A MEAN TEMPERATURE 10 OR MORE DEGREES
ABOVE NORMAL. MANY STATIONS REPORTED MORE DAYS WITH A HIGH
TEMPERATURE OVER 50 THAN IN ANY OTHER ELEVENTH MONTH...18 DAYS AT
IRONWOOD AND IRON MOUNTAIN AND 13 DAYS AT THE MARQUETTE NWS. AT THE
MARQUETTE NWS...13 DAILY RECORD HIGH MAXIMUM OR MINIMUM TEMPERATURE
RECORDS WERE EITHER BROKEN OR TIED. NOVEMBER 2009 FEATURED
UNSEASONABLY WARM WEATHER AND A MEAN MONTHLY TEMPERATURE 6 TO 9
DEGREES ABOVE AVERAGE...ENOUGH TO QUALIFY THE MONTH AS THE WARMEST
NOVEMBER ON RECORD AT HOUGHTON AND ONE OF THE TOP THREE WARMEST
THROUGHOUT UPPER MICHIGAN. NOVEMBER 1999 IS ALSO AMONG THE TOP FIVE
WARMEST ON RECORD AT MANY PLACES. BETWEEN 11/8/99 AND 11/10/99...
HIGH TEMPERATURES OVER MUCH OF UPPER MICHIGAN REACHED NEAR OR ABOVE
70. RESIDENTS OF IRON MOUNTAIN ENJOYED A MONTHLY-RECORD-TYING
75-DEGREE AFTERNOON ON 11/9/99. THE 73-DEGREE READING AT THE
MARQUETTE NWS ON 11/9/99 IS THE HIGHEST NOVEMBER TEMPERATURE EVER
RECORDED AT THAT STATION. IRONWOOD REACHED 72 ON THAT DAY...ONLY TWO
DEGREES SHY OF THE MONTHLY RECORD 74. OTHER WARM SPELLS OCCURRED IN
EARLY NOVEMBER 1990...1978 AND 1975. THE RECORD WARMTH THAT
ENVELOPED UPPER MICHIGAN DURING THE FIRST WEEK OF NOVEMBER 1975 AND
SPREAD TO THE EAST COAST DURING THE SECOND WEEK CONTRIBUTED TO THE
INTENSITY OF THE STORM THAT ROARED OVER LAKE SUPERIOR ON 11/10/75
AND SANK THE EDMUND FITZGERALD.

BUT NOVEMBER CAN ALSO FEATURE ALMOST MID WINTER CHILL. NOVEMBER 2014
GOES DOWN IN THE RECORD BOOKS AS ONE OF THE TOP FIVE COLDEST
ELEVENTH MONTHS ON RECORD AT MOST PLACES IN UPPER MICHIGAN. THE MEAN
MONTHLY TEMPERATURE DURING THAT CHILLY NOVEMBER ENDED UP 5 TO 9
DEGREES BELOW NORMAL AND MORE TYPICAL OF DECEMBER DUE TO A
PERSISTENT UPPER TROUGH THAT PREVAILED MUCH OF THE TIME OVER CENTRAL
AND EASTERN NORTH AMERICA AND WHICH ALLOWED A NEARLY CONTINUOUS
INFLUX OF CHILLY CANADIAN AIR INTO THE UPPER LAKES. NOVEMBERS IN
1995...1976...AND 1959 WERE ALSO QUITE CHILLY AND AMONG THE TOP FIVE
COLDEST AT MOST LOCATIONS. ONE OF THE COLDEST AIRMASSES EVER TO
INVADE UPPER MICHIGAN DURING NOVEMBER IMPACTED THE WESTERN GREAT
LAKES BETWEEN 11/28/76 AND 11/30/76. THE LOWEST NOVEMBER TEMPERATURE
EVER OBSERVED AT IRONWOOD (-18)...THE MARQUETTE NWS (-13)...IRON
MOUNTAIN (-10)... NEWBERRY (-10) AND MANISTIQUE (-6) OCCURRED ON ONE
OF THOSE THREE DAYS.

SIGNIFICANT SNOW BECOMES A GREATER THREAT DURING NOVEMBER AS DEEP
LOW PRESSURE SYSTEMS ENCOUNTER COLDER AIR IN PLACE IN THE UPPER
LAKES. AS THE MORE FREQUENT COLD AIR INVASIONS PASS OVER THE
RELATIVELY WARM WATERS OF LAKE SUPERIOR AND THE ARCTIC AIRMASSES
DESTABILIZE...LAKE EFFECT SNOWS ALSO BECOME MORE LIKELY. THESE SNOW
SHOWERS ARE TYPICALLY HEAVIER AND MORE WIDESPREAD OVER HIGHER
TERRAIN JUST DOWNWIND OF LAKE SUPERIOR. THE AGGREGATE WARMTH OF ALL
THE GREAT LAKES ALSO INFLUENCES THE INTENSITY AND PATH OF LARGE LOW
PRESSURE SYSTEMS APPROACHING THE AREA. IN MOST CASES...SURFACE LOWS
INTENSIFY MORE QUICKLY AND TAKE A PATH FARTHER WEST THAN THEY WOULD
IF THE LAKES WERE ABSENT. THIS DEVIATION IN STORM PATH IN GENERAL
FAVORS HEAVIER SNOW ACROSS WESTERN UPPER MICHIGAN THAN IN THE EAST.
HIGHER TERRAIN AREAS ACROSS THE WEST THAT ALSO ARE FAVORED FOR LAKE
EFFECT SNOW THUS HAVE THE HIGHEST NORMAL NOVEMBER SNOWFALL...AND
LIQUID EQUIVALENT PRECIPITATION. AVERAGE NOVEMBER SNOW RANGES FROM
NEARLY 24 INCHES AT HOUGHTON AND IRONWOOD TO AROUND 6 INCHES OR LESS
FROM IRON MOUNTAIN TO MANISTIQUE.

DURING THE COLD NOVEMBER IN 2014...AN INTENSE VETERANS DAY LOW
PRESSURE SYSTEM BROUGHT RECORD SNOWFALL TO MANY PLACES IN UPPER
MICHIGAN ON 11/10 INTO 11/12. INCLUDING THE HEAVY LAKE EFFECT SNOWS
THAT FELL ON 11/12 INTO 11/14 IN THE COLD CANADIAN AIRFLOW THAT
FOLLOWED...STORM TOTAL SNOWFALL REACHED AS MUCH AS 36 TO 45 INCHES
OVER THE HIGHER TERRAIN OF THE HURON MOUNTAINS. NORTH WIND GUSTS AS
HIGH AS 45 MPH ALSO CAUSED CONSIDERABLE BLOWING SNOW AND BLIZZARD
CONDITIONS IN EXPOSED AREAS...MAINLY ON 11/11. NEARLY A RECORD 90
INCHES OF SNOW ACCUMULATED DURING THE ENTIRE MONTH OF NOVEMBER 2014
AT SOME PLACES OVER THE HIGHER TERRAIN OF WESTERN UPPER MICHIGAN.

ON THE OTHER HAND...RECORD LOW SNOW FELL IN NOVEMBER 2009. DURING
THAT MONTH...THE COMBINATION OF UNSEASONABLE WARMTH THAT SHUT OFF
THE LAKE EFFECT SNOW MACHINE AND A DRY FLOW THAT PREVENTED LARGER
SCALE STORM SYSTEMS AND PRECIPITATION FROM MOVING INTO THE UPPER
GREAT LAKES RESULTED IN RECORD LOW SNOWFALL UNDER 1 TO 6 INCHES AT
MOST LOCATIONS. ONLY A TRACE OF SNOW FELL AT MUNISING IN NOVEMBER
2009.

DESTABILIZATION OF COLD AIR MASSES OVER LAKE SUPERIOR AND RAPIDLY
INTENSIFYING SURFACE LOWS HELP MAKE NOVEMBER ONE OF THE WINDIEST
MONTHS OF THE YEAR...ESPECIALLY NEAR LAKE SUPERIOR. THERE IS TRUTH
IN THE PHRASE...GALES OF NOVEMBER.

                         OUTLOOK FOR WINTER

THE CLIMATE PREDICTION CENTER (CPC) IS FORECASTING A GREATER THAN
CLIMATOLOGICAL CHANCE OF AN ABOVE NORMAL 3-MONTH AVERAGE TEMPERATURE
AND BELOW NORMAL 3-MONTH PRECIPITATION OVER ALL OF UPPER MICHIGAN
IN DECEMBER 2015 THROUGH FEBRUARY 2016. THESE FORECAST TEMPERATURE
AND PRECIPITATION ANOMALIES ARE DUE TO A GROWING EL NINO IN THE
TROPICAL EASTERN PACIFIC OCEAN.

GO TO HTTP://WWW.WEATHER.GOV/CLIMATE/L3MTO.PHP TO ACCESS DETAILED
LOCAL THREE-MONTH AVERAGE TEMPERATURE OUTLOOKS FOR A NUMBER OF SITES
IN UPPER MICHIGAN.

CHECK OUT HTTP://WWW.CPC.NCEP.NOAA.GOV FOR MORE INFORMATION ABOUT
THE CLIMATE PREDICTION CENTER AND MORE LONG RANGE PREDICTIONS.

NOTE THAT STATISTICS FOR THE NATIONAL WEATHER SERVICE OFFICE IN
NEGAUNEE TOWNSHIP ARE BASED ON RECORDS WHICH BEGAN IN OCTOBER 1961.
THIRTY YEAR NORMALS USED ARE FOR THE PERIOD OF 1981 THROUGH 2010.
NOTE ALL TEMPERATURES ARE IN FAHRENHEIT AND PRECIPITATION IS IN
INCHES. ALL CLIMATE DATA LISTED IN THIS PRODUCT ARE UNOFFICIAL. FOR
OFFICIAL DATA...PLEASE REFER TO THE NATIONAL CLIMATIC DATA CENTER.
ALSO NOTE THIS DISCUSSION DOES NOT INCLUDE DATA FROM CHIPPEWA AND
MACKINAC COUNTIES.

NWS MARQUETTE WEB PAGE IS AT HTTP://WWW.WEATHER.GOV/MQT (ALL LOWER
CASE). CONTACT THE NATIONAL CLIMATIC DATA CENTER AT (828) 271-4800
OR WWW.NCDC.NOAA.GOV.

$$

KC



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