Climatological Report (Monthly)
Issued by NWS Marquette, MI

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000
CXUS53 KMQT 221403 AAD
CLMMQT

CLIMATE REPORT...FINAL
NATIONAL WEATHER SERVICE MARQUETTE MI
1005 AM EDT TUE SEP 22 2014

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

...THE MARQUETTE MI CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1961 TO 2014

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              96   08/06/2001
 LOW               31   08/30/1976
HIGHEST            83   08/25        73      10       92  08/25
                        08/09
LOWEST             42   08/28        52     -10       42  08/13
AVG. MAXIMUM     71.3              74.3    -3.0     75.5
AVG. MINIMUM     52.0              53.1    -1.1     53.1
MEAN             61.7              63.7    -2.0     64.3
DAYS MAX >= 90      0               0.5    -0.5        1
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.0     0.0        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         8.59   1988
 MINIMUM         0.44   2008
TOTALS           4.47              3.05    1.42     2.32
DAILY AVG.       0.14              0.10    0.04     0.07
DAYS >= .01        12              10.7     1.3       14
DAYS >= .10        10               6.1     3.9        7
DAYS >= .50         1               1.9    -0.9        2
DAYS >= 1.00        1               0.7     0.3        0
GREATEST
 24 HR. TOTAL    1.93   08/19 TO 08/19

SNOWFALL (INCHES)
RECORDS
 TOTAL              T   2009
TOTALS            0.0               0.0     0.0      0.0
SINCE 7/1           T               0.0     0.0      0.0
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   08/31 TO 08/31

DEGREE_DAYS
HEATING TOTAL     126               106      20      102
 SINCE 7/1        247               185      62      214
COOLING TOTAL      31                66     -35       90
 SINCE 1/1        147               220     -73      270
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              MM
HIGHEST WIND SPEED/DIRECTION    MM        DATE   MM
HIGHEST GUST SPEED/DIRECTION    27/360    DATE  08/12

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER             MM
NUMBER OF DAYS FAIR            0
NUMBER OF DAYS PC              0
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     MM

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       4
LIGHT RAIN               15     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      10     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.

&&

...AUGUST 2014 MONTHLY CLIMATE SUMMARY FOR UPPER MICHIGAN...
/THIS DISCUSSION DOES NOT INCLUDE CHIPPEWA AND MACKINAC COUNTIES/

...COOLER THAN NORMAL...

...GENERALLY NEAR TO ABOVE NORMAL MONTHLY PRECIPITATION...

AUGUST CLIMATE STATISTICS FOR THE MARQUETTE NWS IN NEGAUNEE TOWNSHIP

                                    NORMAL   DEPARTURE
AVERAGE TEMPERATURE         61.7     63.7  MINUS    2.0
AVERAGE HIGH TEMPERATURE    71.3     74.3  MINUS    3.0
AVERAGE LOW TEMPERATURE     52.0     53.1  MINUS    1.1
HEATING DEGREE DAYS          126      106   PLUS     20
COOLING DEGREE DAYS           31       66  MINUS     35
TOTAL PRECIPITATION         4.47     3.05   PLUS   1.42
TOTAL SNOWFALL                 0        0             0

HIGHEST TEMPERATURE:                    83 ON 8/9 AND 8/25
LOWEST TEMPERATURE:                     42 ON 8/28
GREATEST CALENDAR DAY PRECIPITATION:  1.93 ON 8/19
GREATEST 24 HOUR PRECIPITATION:       1.94 ON 8/19-8/20
PEAK WIND SPEED:     27 MPH FROM THE NORTH ON 8/12

DAILY RECORD PRECIPITATION ON 8/19...1.93 /OLD RECORD 1.39...2006/
DAILY RECORD HIGH MINIMUM TEMPERATURE TIED ON 8/22...63 /63...1963/
DAILY RECORD HIGH MINIMUM TEMPERATURE TIED ON 8/23...64 /64...1993/
---------------------------------------------------------------------
GREAT LAKES WATER LEVELS (FEET/METERS ABOVE MEAN SEA LEVEL)

                            LAKE SUPERIOR  LAKE MICHIGAN-HURON
08/01/14 DAILY MEAN         602.61/183.67     578.96/176.46
08/31/14 DAILY MEAN         602.62/183.68     579.06/176.50
AVG JUL 2014 DAILY MEAN     602.55/183.66     578.94/176.46
AVG AUG 2013 DAILY MEAN     601.84/183.44     577.68/176.08
LONG TERM AUG DAILY MEAN    602.13/183.53     579.23/176.55
MAXIMUM AUG DAILY MEAN      603.22/183.86     581.99/177.39
                                (1952)           (1986)
MINIMUM AUG DAILY MEAN      600.43/183.01     576.67/175.77
                                (2007)           (1964)

...GREAT LAKES WATER LEVELS HOLD NEARLY STEADY IN AUGUST...

AS IS NORMAL...THE LEVELS OF THE WESTERN AND CENTRAL GREAT LAKES
HELD NEARLY STEADY IN AUGUST. NEAR THE END OF AUGUST...THE LAKE
SUPERIOR WATER LEVEL WAS OVER 9 INCHES HIGHER THAN IN AUGUST 2013
AND ALMOST 6 INCHES ABOVE THE LONG TERM NORMAL. THE LEVEL OF LAKES
MICHIGAN/HURON ON 8/28 WAS ALMOST 16 INCHES HIGHER THAN DURING LAST
AUGUST BUT STILL ABOUT 2.5 INCHES BELOW THE LONG TERM AVERAGE.

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).
---------------------------------------------------------------------
                       AUGUST CLIMATE HIGHLIGHTS

HIGHEST REPORTED TEMPERATURE...89 AT PELKIE IN BARAGA COUNTY ON 8/25

LOWEST REPORTED TEMPERATURE...29 AT A SITE 15 MILES SOUTH OF MUNISING
                               ON 8/15

HIGHEST AVERAGE TEMPERATURE...65.7 DEGREES AT IRON MOUNTAIN

LOWEST AVERAGE TEMPERATURE...59.0 DEGREES AT HERMAN IN BARAGA COUNTY

HIGHEST MONTHLY PRECIPITATION...5.63 INCHES AT GLADSTONE IN DELTA
                                 COUNTY

LOWEST MONTHLY PRECIPITATION...1.97 INCHES AT STAMBAUGH
                                IN IRON COUNTY

SINCE A NORTHWEST FLOW ALOFT ON THE WESTERN FLANK OF A PERSISTENT
TROUGH IN EASTERN NORTH AMERICA DOMINATED MUCH OF THE TIME IN
AUGUST...ESPECIALLY THE FIRST THREE WEEKS OF THE MONTH...THERE WERE
FREQUENT INCURSIONS OF COOLER CANADIAN AIR INTO THE UPPER GREAT
LAKES. THE RESULT WAS A MEAN MONTHLY TEMPERATURE THAT RAN 1 TO 3
DEGREES BELOW NORMAL AT MOST PLACES. BECAUSE THE LATE ICE MELT IN
SPRING THIS YEAR HELD WATER TEMPERATURES ON THE GREAT LAKES BELOW
AVERAGE EVEN THIS LATE IN THE SUMMER SEASON...EVEN COOLER CONDITIONS
PREVAILED NEAR THE LAKE SHORES WITH THE MONTHLY AVERAGE AT MARQUETTE
AND MUNISING CLOSE TO 4 DEGREES BELOW NORMAL. THE MEAN AUGUST
TEMPERATURE THAT RANGED FROM 59 TO 66 DEGREES WAS WITHIN A FEW
DEGREES OF THE JULY AVERAGE.

MEAN DAILY TEMPERATURES WERE AT OR BELOW NORMAL ON MOST DAYS THROUGH
8/20. THE COOLEST WEEK WAS FROM 8/11 THROUGH 8/18...A TIME WHEN
AVERAGE TEMPERATURES RAN AS MUCH AS 10 TO 15 DEGREES BELOW NORMAL.
AT LEAST ONE OF THE COOLER INTERIOR OBSERVATION SITES REPORTED A LOW
TEMPERATURE IN THE 30S IN THE EARLY MORNING OF 8/6...8/7...8/13
THROUGH 8/15...8/18 AND 8/28. THE ONLY TIME THE THERMOMETER DIPPED
BELOW 30 WAS EARLY ON 8/15...WHEN ONE OF THE TYPICAL COLD SPOTS
INLAND FROM MUNISING REPORTED A MINIMUM OF 29. THERE WERE NO REPORTS
OF 90-DEGREE TEMPERATURES IN AUGUST...EVEN DURING THE WARMEST
STRETCH FROM 8/21 THROUGH 8/25. THE WARMEST DAY OVERALL WAS ON
8/25...WHEN PELKIE IN BARAGA COUNTY SAW THE MERCURY REACH 89 AND THE
DAILY TEMPERATURE AVERAGED ABOUT 10 DEGREES ABOVE NORMAL AT MOST
PLACES.

HIGH PRESSURE TENDED TO DOMINATE AND BRING DRY CONDITIONS MUCH OF
THE FIRST HALF OF AUGUST...BUT THE PATTERN TURNED MORE ACTIVE AND
WETTER DURING THE SECOND HALF OF THE MONTH AS THE UPPER FLOW SHIFTED
TO A MORE WEST-TO-EAST ORIENTATION FOLLOWING A WEAKENING OF THE
TROUGH IN EASTERN CANADA. FREQUENT SHOWERS AND THUNDERSTORMS AFTER
8/15 LIFTED AUGUST RAINFALL NEAR OR ABOVE NORMAL AT MOST PLACES. BUT
BECAUSE OF THE HIT-OR-MISS NATURE OF SUMMER CONVECTION...SOME
LOCATIONS MEASURED BELOW NORMAL MONTHLY RAINFALL. AUGUST
PRECIPITATION RANGED FROM 1.97 INCHES AT STAMBAUGH IN IRON COUNTY...
ABOUT 60 PERCENT OF NORMAL...TO 5.63 INCHES AT GLADSTONE IN DELTA
COUNTY...WHICH IS ALMOST 185 PERCENT OF THE AUGUST AVERAGE FOR THAT
SPOT.

A COLD FRONT SWEEPING ACROSS UPPER MICHIGAN DURING THE AFTERNOON ON
8/3 GENERATED SOME STRONG THUNDERSTORMS THAT DROPPED HEAVY RAIN AND
CAUSED GUSTY WINDS OVER MAINLY THE SOUTH CENTRAL AND EASTERN UPPER
PENINSULA. A LOCATION NEAR STEUBEN IN SCHOOLCRAFT COUNTY REPORTED
1.85 INCHES OF RAIN. AS MUCH AS AN INCH OF RAIN FELL IN 15 MINUTES
AT ESCANABA...WHERE WATER FLOODED SOME STREETS. LOCATIONS NEAR
ESCANABA ALSO REPORTED WIND GUSTS AS HIGH AS 40 TO 45 MPH UNDER SOME
OF THE STRONGER STORMS.

A WAVE OF LOW PRESSURE RIDING NORTH ALONG A SLOW MOVING COLD FRONT
AND UNDER A DEEPENING TROUGH OVER THE GREAT LAKES BROUGHT MODERATE
TO HEAVY RAIN TO SOME LOCATIONS ON 8/11 INTO 8/12. A FEW PLACES SAW
1.50 INCHES OR MORE OF RAIN...INCLUDING AS MUCH AS 1.74 INCHES NEAR
BARAGA. ANOTHER COLD FRONT PASSING THROUGH THE UPPER LAKES DURING
THE NIGHT ON 8/15-8/16 CAUSED SOME SHOWERS AND STORMS THAT DROPPED
HEAVY RAIN ACROSS MAINLY THE KEWEENAW AND NORTH CENTRAL UPPER
MICHIGAN. AS MUCH AS 1.09 INCHES OF RAIN FELL NEAR CALUMET.

A SLOW MOVING UPPER DISTURBANCE AND SURFACE LOW PRESSURE SYSTEM THAT
INTERACTED WITH A VERY HUMID AIRMASS IN PLACE BROUGHT NUMEROUS
SHOWERS AND SOME THUNDERSTORMS WITH HEAVY DOWNPOURS ON 8/18 INTO
8/20. AN INCH OR MORE OF RAIN FELL AT MANY PLACES...INCLUDING 2.54
INCHES AT MOHAWK IN KEWEENAW COUNTY AND 2.19 INCHES AT NEGAUNEE IN
MARQUETTE COUNTY. AREAS OF FOG THAT DEVELOPED WITH THE ABUNDANT
MOISTURE BECAME LOCALLY DENSE DURING THE EARLY MORNINGS ON 8/19 AND
8/20. ANOTHER BATCH OF HEAVY RAIN SHOWERS AND THUNDERSTORMS THAT
DEVELOPED NORTH OF A WARM FRONT IN THE UPPER MIDWEST IMPACTED MAINLY
CENTRAL UPPER MICHIGAN ON 8/23. A LOCATION NEAR CHANNING IN
DICKINSON COUNTY HAD 3.72 INCHES OF RAIN...AND 2.72 INCHES FELL AT
CRYSTAL FALLS IN IRON COUNTY ON 8/23.

AS A POTENT UPPER DISTURBANCE MOVING THROUGH THE NORTHERN PLAINS
BEGAN TO INTERACT WITH A VERY UNSTABLE...WARM AND HUMID AIRMASS OVER
THE GREAT LAKES DURING THE EARLY MORNING HOURS ON 8/25...A BAND OF
SHOWERS AND THUNDERSTORMS ACCOMPANIED BY HEAVY RAINS AND WINDS GUSTS
UP TO 40 TO 45 MPH MOVED INTO WESTERN UPPER MICHIGAN. AS MUCH AS
1.95 INCHES OF RAIN INUNDATED BERGLAND DAM IN ONTONAGON COUNTY.
THESE SHOWERS MARCHED WEST-TO-EAST ACROSS THE U.P. THROUGH THE
MORNING ON 8/25 BUT WEAKENED WITH TIME. THE RETURN OF SUNSHINE IN
THE AFTERNOON BEHIND THIS DIMINISHING BAND LIFTED THE MERCURY WELL
INTO THE 80S AT MANY LOCATIONS.

ANOTHER ROUND OF SOME HEAVY RAIN SHOWERS AND THUNDERSTORMS ARRIVED
OVER WESTERN UPPER MICHIGAN LATE IN THE DAY ON 8/29 AHEAD OF A SLOW
MOVING COLD FRONT THAT CROSSED UPPER MICHIGAN ON 8/30. UNDER THE
SHOWERS PRECEDING THE FRONT...UP TO 1.94 AND 1.80 INCHES OF RAIN
FELL AT IRONWOOD AND MUNISING RESPECTIVELY.
---------------------------------------------------------------------
              ...A COOL SUMMER ACROSS UPPER MICHIGAN...

               ...JUNE-AUGUST 2014 MEAN TEMPERATURE...

              OBSERVED  NORMAL  DEPARTURE     RECORD       2014 RANK

MANISTIQUE      59.9     63.0     -3.1     57.8 /1992/    4TH COOLEST

MUNISING        60.0     62.8     -2.8     56.0 /1920/   14TH COOLEST

MARQUETTE NWS   61.6     63.3     -1.7     57.9 /1992/   18TH COOLEST

IRONWOOD        62.6     63.8     -1.2     58.2 /1992/   18TH COOLEST

MARQUETTE CITY  61.1     64.4     -3.3     58.6 /1915/   19TH COOLEST

NEWBERRY        61.3     63.6     -2.3     57.9 /1992/   20TH COOLEST

HOUGHTON        61.0     62.7     -1.7     57.7 /1950/   25TH COOLEST

IRON MOUNTAIN   65.0     66.0     -1.0     61.8 /1927/       ****

**** NOT IN TOP 25

ALTHOUGH THE MONTH OF JUNE FEATURED SLIGHTLY WARMER THAN NORMAL
CONDITIONS...THE WEATHER IN AUGUST AND ESPECIALLY JULY WAS COOLER
THAN NORMAL. THE RESULT WAS A TOP 25 COOLEST SUMMER AT MOST PLACES
IN UPPER MICHIGAN. IN GENERAL...LOCATIONS NEAR THE CHILLY WATERS OF
THE GREAT LAKES WERE COOLEST RELATIVE TO NORMAL.
---------------------------------------------------------------------
        ...TOP 5 COLDEST START TO THE YEAR AT MOST PLACES...

             ...JANUARY-AUGUST 2014 MEAN TEMPERATURE...

                                          /OR PREVIOUS/
              OBSERVED  NORMAL  DEPARTURE     RECORD      2014 RANK

MANISTIQUE      37.2     42.7     -5.5     38.3 /1994/ RECORD COLDEST

NEWBERRY        38.0     43.3     -5.3     39.7 /1972/ RECORD COLDEST

IRON MOUNTAIN   39.5     44.0     -4.5     40.5 /1950  RECORD COLDEST
                                                &1996/

MARQUETTE NWS   37.3     41.7     -4.4     37.9 /1972/ RECORD COLDEST

IRONWOOD        37.3     42.2     -4.9     37.1 /1917/    2ND COLDEST

MUNISING        37.0     42.5     -5.5     35.2 /1920/    3RD COLDEST

HOUGHTON        37.3     41.5     -4.2     35.8 /1888/    5TH COLDEST

MARQUETTE CITY  38.2     44.4     -6.2     36.0 /1885/    8TH COLDEST
---------------------------------------------------------------------
SOME OTHER TEMPERATURE AND PRECIPITATION OBSERVATIONS ACROSS UPPER
MICHIGAN IN AUGUST 2014 INCLUDE:

IRONWOOD...AVERAGE TEMPERATURE 62.7 (1.4 DEGREES BELOW NORMAL)
           PRECIPITATION 5.06 INCHES (1.69 INCHES ABOVE NORMAL)

WATERSMEET (GOGEBIC COUNTY)...PRECIPITATION 3.98 INCHES

ONTONAGON...AVERAGE TEMPERATURE 64.4 (1.7 DEGREES BELOW NORMAL)
 (6 MILES   PRECIPITATION 4.91 INCHES (2.05 INCHES ABOVE NORMAL)
  INLAND)

GREENLAND (ONTONAGON COUNTY)...AVERAGE TEMPERATURE 61.1 DEGREES
                               PRECIPITATION 3.35 INCHES

BERGLAND DAM (ONTONAGON COUNTY)...PRECIPITATION 4.72 INCHES

HOUGHTON COUNTY...AVERAGE TEMPERATURE 61.5 (2.4 DEGREES BELOW NORMAL)
 AIRPORT         PRECIPITATION 4.25 INCHES (1.84 INCHES ABOVE NORMAL)

ATLANTIC MINE (HOUGHTON COUNTY)...PRECIPITATION 3.37 INCHES

MOHAWK (KEWEENAW COUNTY)...PRECIPITATION 5.33 INCHES

COPPER HARBOR...AVERAGE TEMPERATURE 61.6 DEGREES
                PRECIPITATION 2.92 INCHES

JACOBSVILLE (HOUGHTON COUNTY)...AVERAGE TEMPERATURE 60.1 DEGREES
                                PRECIPITATION 3.38 INCHES

BARAGA...AVERAGE TEMPERATURE 63.3 DEGREES
         PRECIPITATION 3.46 INCHES

WATTON (BARAGA COUNTY)...AVERAGE TEMPERATURE 60.9 DEGREES
                         PRECIPITATION 3.16 INCHES

HERMAN (BARAGA COUNTY)...AVERAGE TEMPERATURE 59.0 DEGREES
                         PRECIPITATION 2.36 INCHES

CLARKSBURG (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 60.6 DEGREES
                                PRECIPITATION 3.79 INCHES

BIG BAY (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 61.2 DEGREES
                             PRECIPITATION 3.31 INCHES

MARQUETTE CITY...AVERAGE TEMPERATURE 63.0 (3.6 DEGREES BELOW NORMAL)
                 PRECIPITATION 2.94 INCHES (0.31 INCH ABOVE NORMAL)

HARVEY (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 63.3 DEGREES
                            PRECIPITATION 2.25 INCHES

GWINN (MARQUETTE COUNTY)...PRECIPITATION 3.66 INCHES

CHATHAM (ALGER COUNTY)...AVERAGE TEMPERATURE 62.3 DEGREES
                         PRECIPITATION 3.18 INCHES

MUNISING...AVERAGE TEMPERATURE 60.9 (3.6 DEGREES BELOW NORMAL)
           PRECIPITATION 3.26 INCHES (0.07 INCH BELOW NORMAL)

NEWBERRY...AVERAGE TEMPERATURE 61.7 (2.9 DEGREES BELOW NORMAL)
           PRECIPITATION 2.83 INCHES (0.40 INCH BELOW NORMAL)

STAMBAUGH (IRON COUNTY)...PRECIPITATION 1.97 INCHES

AMASA (IRON COUNTY)...PRECIPITATION 4.08 INCHES

IRON MOUNTAIN...AVERAGE TEMPERATURE 65.7 (0.7 DEGREE BELOW NORMAL)
                PRECIPITATION 3.14 INCHES (0.12 INCH BELOW NORMAL)

NORWAY (DICKINSON COUNTY)...PRECIPITATION 3.74 INCHES

DAGGETT (MENOMINEE COUNTY)...PRECIPITATION 3.45 INCHES

MENOMINEE...PRECIPITATION 3.80 INCHES

ESCANABA...AVERAGE TEMPERATURE 64.8 DEGREES
 (INLAND)  PRECIPITATION 4.60 INCHES

GLADSTONE (DELTA COUNTY)...PRECIPITATION 5.63 INCHES

GARDEN CORNERS (DELTA COUNTY)...AVERAGE TEMPERATURE 62.7 DEGREES
                                PRECIPITATION 4.39 INCHES

COOKS (SCHOOLCRAFT COUNTY)...PRECIPITATION 3.56 INCHES

MANISTIQUE...AVERAGE TEMPERATURE 62.0 (2.6 DEGREES BELOW NORMAL)
             PRECIPITATION 3.02 INCHES (0.23 INCH BELOW NORMAL)

                         AUGUST WEATHER SUMMARY

HIGH PRESSURE PASSING THROUGH THE GREAT LAKES EARLY IN AUGUST
BROUGHT CLEAR TO PARTLY CLOUDY CONDITIONS ON 8/1 AND 8/2. ALTHOUGH
THE MEAN DAILY TEMPERATURE ON 8/1 RAN ABOUT 5 DEGREES BELOW NORMAL
AS THE CANADIAN HIGH SETTLED TOWARD UPPER MICHIGAN...THE MERCURY
REBOUNDED CLOSER TO NORMAL ON 8/2 AS THE HIGH SHIFTED TOWARD THE
LOWER LAKES AND THE RETURN SOUTHWEST FLOW ADVECTED WARMER AIR BACK
INTO THE UPR LKS.

A COLD FRONT SLIDING SOUTHEAST SWEPT ACROSS UPPER MICHIGAN DURING
THE AFTERNOON ON 8/3 AND GENERATED SCATTERED STRONG THUNDERSTORMS
THAT DROPPED HEAVY RAIN AND CAUSED GUSTY WINDS OVER MAINLY THE SOUTH
CENTRAL AND EASTERN UPPER PENINSULA. WHILE THE SHOWERS MISSED SOME
PLACES EVEN IN THIS AREA...A LOCATION NEAR STEUBEN IN SCHOOLCRAFT
COUNTY REPORTED 1.85 INCHES OF RAIN. AS MUCH AS AN INCH OF RAIN FELL
IN 15 MINUTES AT ESCANABA...WHERE WATER FLOODED SOME STREETS.
ESCANABA ALSO REPORTED WIND GUSTS AS HIGH AS 40 TO 45 MPH UNDER SOME
OF THE STRONGER STORMS. OVER THE NORTHWEST HALF...MOST PLACES SAW NO
RAIN. AFTER LINGERING SHOWERS AND STORMS OVER THE SOUTH CENTRAL
ENDED IN THE EVENING ON 8/3...SOME PATCHY DENSE FOG FORMED IN THE
EARLY MORNING HOURS ON 8/4 ACROSS AREAS THAT PICKED UP RAIN THE
PREVIOUS DAY.

HIGH PRESSURE OVER ONTARIO THEN BROUGHT GENERALLY DRY AND PLEASANTLY
COOL WEATHER TO THE U.P. FOR 8/4 INTO 8/7. THE ONLY RAIN THAT FELL
DURING THIS TIME WAS OVER THE SOUTH CENTRAL ON THE AFTERNOON OF 8/4
INTO THE EARLY MORNING OF 8/5 AS THE COLD FRONT THAT PASSED ON 8/3
STALLED BRIEFLY ACROSS WISCONSIN BEFORE THE BUILDING ONTARIO HIGH
PUSHED THIS BOUNDARY FARTHER TO THE SOUTH. ANY RAINFALL WAS NO MORE
THAN FEW HUNDREDTHS OF AN INCH. MEAN DAILY TEMPERATURES ON 8/3 WERE
WITHIN A FEW DEGREES OF NORMAL BUT THEN FELL OFF TO AS MUCH AS 5
DEGREES BELOW AVERAGE ON 8/4 THROUGH 8/7 WITH CANADIAN AIR OVERHEAD.
THE COMBINATION OF MOSTLY CLEAR SKIES AND LIGHT WINDS CAUSED THE
MERCURY TO PLUMMET INTO THE 30S AT SOME OF THE COLDER INTERIOR
LOCATIONS EARLY IN THE MORNING ON 8/6 AND 8/7.

BECAUSE AN UPPER RIDGE BUILT OVER THE GREAT LAKES...THE SURFACE HIGH
PRESSURE SYSTEM MOVED ONLY SLOWLY TO THE SOUTHEAST IN THE GREAT
LAKES THROUGH 8/10. DRY WEATHER AND A SLOW WARMING TREND WAS THE
RULE ACROSS THE UPPER GREAT LAKES...WITH MEAN DAILY TEMPERATURES
RISING FROM NEAR NORMAL ON 8/8 TO AROUND 5 DEGREES ABOVE AVERAGE ON
8/10.

AN UPPER TROUGH BEGAN TO DEEPEN TOWARD THE WESTERN GREAT LAKES ON
8/11...ALLOWING A WAVE OF LOW PRESSURE TO DEVELOP IN WISCONSIN ALONG
A SLOW MOVING COLD FRONT. AS THE FRONT MOVED SLOWLY TO THE EAST
ACROSS UPPER MICHIGAN AND THIS LOW PRESSURE SYSTEM LIFTED TO THE
NORTHEAST...SOME MODERATE TO HEAVY PRECIPITATION FELL OVER THE U.P.
INTO 8/12. MOST PLACES LOGGED 0.10 TO 0.75 INCH OF RAIN...EXCEPT
OVER THE WEST...WHERE 1.00 TO 1.50 INCHES OR MORE FELL AT MANY
PLACES. A LOCATION JUST NORTHWEST OF BARAGA LED REPORTING STATIONS
WITH 1.74 INCHES. NORTH WINDS GUSTING AS HIGH AS 30 MPH ON 8/12
BEHIND THE FRONT DROVE COOLER AIR INTO THE UPPER LAKES...DROPPING
MEAN DAILY TEMPERATURES TO AS MUCH AS 5 TO 10 DEGREES BELOW NORMAL
ON 8/11 AND 8/12. ANOTHER COOL CANADIAN HIGH PUSHED INTO THE UPPER
GREAT LAKES ON 8/13 AND 8/14. THE MERCURY AVERAGED CLOSE TO 10
DEGREES BELOW AVERAGE ON 8/13 WITH A GOOD DEAL OF CLOUD COVER AND A
STEADY NORTH WIND OFF THE CHILLY WATERS OF LAKE SUPERIOR. THE MEAN
DAILY TEMPERATURE MODERATED TO 5 TO 10 DEGREES BELOW AVERAGE ON 8/14
WITH THE RETURN OF MORE SUNSHINE. THE DAY ON 8/15 WAS MOSTLY SUNNY
AND A BIT WARMER WITH A RETURN WEST TO SOUTHWEST FLOW OF WARMER AIR
AROUND THE HIGH SINKING INTO THE LOWER LAKES ELEVATING THE MEAN
DAILY TEMPERATURE CLOSE TO NORMAL. WITHIN THE COOL CANADIAN
AIRMASS...MORNING TEMPERATURES ON EACH OF THE DAYS FROM 8/13 TO 8/15
BOTTOMED OUT IN THE 30S AT SOME OF THE COLDER PLACES AWAY FROM THE
GREAT LAKES. AT A SITE 15 MILES INLAND FROM MUNISING NEAR SUNRISE ON
8/15...THE THERMOMETER READ AS LOW AS 29...THE LOWEST TEMPERATURE
REPORTED IN UPPER MICHIGAN IN AUGUST.

ANOTHER COLD FRONT PASSING THROUGH THE UPPER LAKES DURING THE NIGHT
ON 8/15-8/16 CAUSED SOME SHOWERS AND STORMS THAT DROPPED HEAVY RAIN
ACROSS MAINLY THE KEWEENAW AND NORTH CENTRAL UPPER MICHIGAN. MOST
PLACES IN THIS AREA SAW 0.25 TO 0.75 INCH OF RAIN...BUT AS MUCH AS
1.09 INCHES OF RAIN FELL NEAR CALUMET. MOHAWK IN KEWEENAW COUNTY
MEASURED EXACTLY 1.00 INCH. LITTLE IF ANY RAIN FELL NEAR THE
WISCONSIN BORDER. HIGH PRESSURE TRAILING THIS COLD FRONT MOVED FROM
NORTHWEST ONTARIO INTO THE UPPER GREAT LAKES ON 8/17...BRINGING
GRADUAL CLEARING TO THE U.P. AFTER LINGERING SHOWERS ENDED IN THE
MORNING ON 8/16. THE THERMOMETER READ ABOUT 5 DEGREES BELOW NORMAL
ON 8/16 AND THEN AROUND 10 DEGREES BELOW THE MEAN ON 8/17 FOLLOWING
THE INFLUX OF CANADIAN AIR.

CLOUDS BEGAN TO SPREAD EAST INTO THE GREAT LAKES ON 8/18 IN ADVANCE
OF A LOW PRESSURE SYSTEM AND ATTENDANT WARM FRONT MOVING EAST
THROUGH MINNESOTA. BEFORE THESE CLOUDS ARRIVED...EARLY MORNING
TEMPERATURES ON 8/18 FELL OFF INTO THE 30S AT A FEW COLDER LOCATIONS
OVER THE INTERIOR EAST HALF. WITH A STEADY INCREASE IN HUMIDITY AS
WELL AS THE CLOSER APPROACH OF THE SURFACE LOW AND ASSOCIATED UPPER
DISTURBANCE...SCATTERED SHOWERS AND THUNDERSTORMS THAT DEVELOPED
NEAR THE WISCONSIN BORDER IN THE AFTERNOON ON 8/18 BECOME MORE
NUMEROUS THROUGH THE DAY ON 8/19 AND DROPPED SOME TORRENTIAL
DOWNPOURS. BY THE TIME THE SHOWERS DIMINISHED DURING THE DAY ON
8/20...PRECIPITATION TOTALS EXCEEDED 1.00 TO EVEN 2.00 INCHES AT
MANY LOCATIONS. MOHAWK AND NEGAUNEE IN MARQUETTE COUNTY LED
REPORTING STATIONS WITH 2.54 INCHES AND 2.19 INCHES OF RAIN
RESPECTIVELY. AREAS OF FOG THAT DEVELOPED WITH THE ABUNDANT MOISTURE
IN PLACE BECAME LOCALLY DENSE DURING THE EARLY MORNINGS ON 8/19 AND
8/20. MEAN DAILY TEMPERATURES AS MUCH AS 10 TO 15 DEGREES BELOW
AVERAGE ON 8/18 WARMED TO NEAR NORMAL ON 8/19 AND 8/20.

ALTHOUGH AN UPPER RIDGE BUILT OVER THE GREAT LAKES AFTER 8/20...
LOTS OF CLOUDS PERSISTED ACROSS THE UPPER MICHIGAN ON 8/21 THROUGH
8/24 IN THE RATHER HUMID AIRMASS TO THE NORTH OF A STATIONARY FRONT
SITUATED ACROSS THE UPPER MIDWEST. THERE WAS ALSO SOME LOCALLY DENSE
FOG MAINLY DURING THE OVERNIGHT PERIODS WITHIN THIS MOIST AIRMASS AS
WELL AS SOME ISOLATED SHOWERS. THE SCATTERED SHOWERS BECAME NUMEROUS
DURING THE EVENING ON 8/22 OVER THE CENTRAL...AND THESE CONTINUED
INTO 8/23. SINCE THE SHOWERS WERE SLOW MOVING...THE HEAVIER SHOWERS
DROPPED SOME TORRENTIAL RAINS...ESPECIALLY NEAR THE WISCONSIN BORDER
CLOSER TO THE STATIONARY FRONT. A LOCATION NEAR CHANNING IN
DICKINSON COUNTY HAD 3.72 INCHES OF RAIN...AND 2.72 INCHES FELL AT
CRYSTAL FALLS IN IRON COUNTY FROM THE EVENING ON 8/22 THROUGH 8/23.
GLADSTONE IN DELTA COUNTY REPORTED 2.45 INCHES. MOST PLACES AWAY
FROM CENTRAL UPPER MICHIGAN SAW LESS THAN 0.25 INCH OF RAIN. MEAN
DAILY TEMPERATURES EDGED UP FROM NEAR 5 DEGREES ABOVE NORMAL ON 8/21
TO AS MUCH AS 10 DEGREES ABOVE NORMAL ON 8/24.

AS A POTENT UPPER DISTURBANCE MOVING THROUGH THE NORTHERN PLAINS
BEGAN TO INTERACT WITH THE WARM...HUMID AND INCREASINGLY UNSTABLE
AIRMASS OVER THE GREAT LAKES DURING THE NIGHT ON 8/24-8/25...A BAND
OF SHOWERS AND THUNDERSTORMS ACCOMPANIED BY HEAVY RAINS AND WINDS
GUSTS UP TO 40 TO 45 MPH MOVED INTO WESTERN UPPER MICHIGAN. THESE
SHOWERS MARCHED WEST-TO-EAST ACROSS THE U.P. THROUGH THE MORNING ON
8/25 BUT WEAKENED WITH TIME. RAINFALL UNDER THIS BAND OF SHOWERS AND
STORMS WAS 0.50 TO 1.50 INCHES ACROSS MOST OF THE WEST HALF AND AS
MUCH AS 1.95 INCHES AT BERGLAND DAM IN ONTONAGON COUNTY AND 1.67
INCHES AT IRONWOOD. OVER THE EAST HALF...TOTALS WERE GENERALLY 0.10
TO 0.50 INCH. THE RETURN OF SUNSHINE IN THE AFTERNOON BEHIND THIS
DIMINISHING BAND LIFTED THE MERCURY WELL INTO THE 80S AND TO THE
HIGHEST READINGS OF THE MONTH AT MANY LOCATIONS. THE COLD FRONT
ASSOCIATED WITH THE STRONG UPPER DISTURBANCE RESPONSIBLE FOR THE
SHOWERS PUSHED THROUGH UPPER MICHIGAN DURING THE EVENING ON 8/25...
OPENING THE DOOR FOR SOME COOLER AND DRIER AIR AS WEST WINDS GUSTED
UP TO 35 MPH THROUGH 8/26. MEAN DAILY TEMPERATURES ON 8/25 WERE
AROUND 10 DEGREES ABOVE NORMAL BUT THEN FELL OFF TO AS MUCH AS 5
DEGREES BELOW AVERAGE ON 8/26 EVEN THOUGH THERE WAS A GOOD DEAL OF
AFTERNOON SUNSHINE.

A DISTURBANCE PASSED THROUGH THE UPPER LAKES EARLY IN THE MORNING ON
8/27 ACCOMPANIED BY CLOUDS AND SOME LIGHT SHOWERS THAT DROPPED NO
MORE THAN ABOUT 0.10 INCH OF RAIN. HIGH PRESSURE TRAILING THIS
SYSTEM THEN BROUGHT A PERIOD OF DRY AND COOL WEATHER FROM THE
AFTERNOON ON 8/27 THROUGH 8/28. WITH LIGHT WINDS AND MOSTLY CLEAR
SKIES DURING THE NIGHT ON 8/27-8/28...TEMPERATURES DIPPED INTO THE
30S AT SOME OF THE COLDER INTERIOR LOCATIONS. MEAN DAILY
TEMPERATURES ON BOTH 8/27 AND 8/28 WERE 5 TO 10 DEGREES BELOW NORMAL.

WARMER AND MORE HUMID AIR RETURNED ON 8/29 WITH A STRENGTHENING
SOUTHERLY FLOW BETWEEN DEPARTING HIGH PRESSURE TO THE EAST AND AN
APPROACHING COLD FRONT IN MINNESOTA. FUELED BY THIS MORE HUMID
AIR...SOME HEAVY RAIN SHOWERS AND THUNDERSTORMS ARRIVED OVER WESTERN
UPPER MICHIGAN LATE IN THE DAY ON 8/29 AHEAD OF THE SLOW MOVING COLD
FRONT THAT CROSSED UPPER MICHIGAN ON 8/30. MOST PLACES REPORTED 0.25
TO 1.00 INCH OF RAIN DURING THIS EVENT...BUT UP TO 1.94 AND 1.80
INCHES OF RAIN FELL AT IRONWOOD AND MUNISING RESPECTIVELY UNDER SOME
OF THE HEAVIER SHOWERS PRECEDING THE FRONT. SOME FOG THAT WAS
LOCALLY DENSE OVER WESTERN UPPER MICHIGAN AND PLENTY OF CLOUDS
LINGERING INTO THE MORNING ON 8/31 IN THE WAKE OF THE FRONTAL
PASSAGE. THE CLOUDS PERSISTED MUCH OF THE DAY EXCEPT OVER THE
WEST...WHERE SKIES TURNED MOSTLY SUNNY IN THE AFTERNOON ON 8/31 WITH
THE PASSAGE OF A HIGH PRESSURE RIDGE. MEAN DAILY TEMPERATURES ON
8/29 THROUGH 8/31 WERE WITHIN A FEW DEGREES OF NORMAL.

                         OCTOBER FORECAST

THE CLIMATE PREDICTION CENTER (CPC) IS FORECASTING EQUAL CHANCES OF
AN ABOVE AND BELOW NORMAL MONTHLY MEAN TEMPERATURE BUT A GREATER
THAN CLIMATOLOGICAL CHANCE OF ABOVE NORMAL MONTHLY PRECIPITATION
OVER ALL OF UPPER MICHIGAN IN OCTOBER 2014.

                       OCTOBER CLIMATOLOGY

AVERAGE TEMPERATURES IN OCTOBER CONTINUE THEIR DOWNWARD SPIRAL AS
THE SUN STAYS UP LESS AND LESS EACH DAY. THE OCTOBER MEAN
TEMPERATURE ACROSS UPPER MICHIGAN IS ABOUT TEN DEGREES LOWER THAN IN
SEPTEMBER AT MOST PLACES. POSSIBLE DAILY SUNSHINE DECREASES ABOUT 3
OR 4 MINUTES EVERY DAY DURING THE TENTH MONTH FROM 703 MINUTES ON
10/1 TO 607 MINUTES ON HALLOWEEN.

ALTHOUGH AVERAGE TEMPERATURES DECREASE DURING OCTOBER...RECORD HIGH
TEMPERATURES AT MANY PLACES IN UPPER MICHIGAN ARE STILL IN THE 80S
DURING THE FIRST WEEK OF THE MONTH. IN FACT...RESIDENTS OF IRON
MOUNTAIN BASKED IN A SUMMER-LIKE HIGH OF 88 ON 10/3/92. DOWNTOWN
MARQUETTE ENJOYED A TASTE OF SUMMER EVEN AS LATE AS 10/18 IN 1950...
WHEN THE MERCURY REACHED A BALMY 86 DEGREES.

BUT BY THE END OF OCTOBER...THE ICY HAND OF WINTER USUALLY BEGINS TO
GRIP UPPER MICHIGAN HARDER AND HARDER. RECORD LOW TEMPERATURES AT
MONTHS END FALL INTO THE TEENS EVERYWHERE AND EVEN AS LOW AS THE
SINGLE NUMBERS ABOVE ZERO AWAY FROM THE WARMING INFLUENCE OF LAKE
SUPERIOR. ON 10/30/1925...IRONWOOD RECORDED A LOW OF 2 DEGREES ABOVE
ZERO. OCTOBER 2002 WAS THE COLDEST OCTOBER ON RECORD AT THE
MARQUETTE NWS...AND AMONG THE TOP TEN COLDEST AT IRONWOOD AND IRON
MOUNTAIN. MONTHLY TEMPERATURES AVERAGED 4 TO 6 DEGREES BELOW NORMAL
ACROSS UPPER MICHIGAN. OCTOBER 2009 WAS ALSO QUITE CHILLY WITH AN
AVERAGE MONTHLY TEMPERATURE 3 TO 5 DEGREES BELOW THE MEAN. MUNISING
REPORTED THE COLDEST OCTOBER ON RECORD IN 2009...AND MANY PLACES
EXPERIENCED A TOP FIVE OR TEN COLDEST TENTH MONTH.

EVEN THOUGH AVERAGE PRECIPITATION IN OCTOBER IS LOWER THAN IN
SEPTEMBER AT MOST SPOTS...THE RESIDUAL WARMTH OF LAKE SUPERIOR
USUALLY CAUSES INCREASED LAKE EFFECT RAIN AND SNOW SHOWER ACTIVITY
DURING THE TENTH MONTH. MORE NUMEROUS ARCTIC AIR MASSES PLUNGING
SOUTH FROM CANADA ARE DESTABILIZED AS THEY CROSS THE RELATIVELY WARM
WATER...RESULTING IN THE INCREASED CONVECTIVE ACTIVITY. IF THE AIR
IS COLD ENOUGH...HEAVY SNOW CAN FALL...ESPECIALLY OVER HIGHER
TERRAIN JUST DOWNWIND OF LAKE SUPERIOR. BETWEEN 10/11 AND 10/14 IN
2006...AN UNUSUALLY EARLY WINTER STORM BLASTED THE HIGHER TERRAIN OF
THE WEST HALF OF UPPER MICHIGAN WITH 20 OR MORE INCHES OF SNOW...
INCLUDING AS MUCH AS 26.6 INCHES AT TWIN LAKES IN HOUGHTON COUNTY.
IN OCTOBER 1967...ALMOST 27 INCHES OF SNOW WHITENED IRONWOOD...
INCLUDING 15 INCHES ON 10/25/67. HEAVY SNOW CAN FALL EVEN EARLIER IN
THE MONTH. ON 10/6 TO 10/8 IN 2000...UP TO A FOOT OF SNOW SMOTHERED
THE HIGHER TERRAIN OF NORTH CENTRAL UPPER MICHIGAN. BUT DURING WARM
OCTOBERS...LITTLE OR NO SNOW CAN FALL AS WELL. THE MARQUETTE NWS SAW
NO SNOW AT ALL IN OCTOBER 1971...AS DID THE HOUGHTON COUNTY AIRPORT
IN 1986.

THE SAME SURFACE HEATING AND DESTABILIZATION OF COLD AIRMASSES THAT
CAUSES LAKE EFFECT SNOW ALSO RESULTS IN INCREASED WINDINESS OVER
LAKE SUPERIOR. THE GALES OF NOVEMBER OFTEN DO COME EARLY DURING
OCTOBER.

                 OUTLOOK FOR LATE FALL AND EARLY 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
NOVEMBER 2014 THROUGH JANUARY 2015.

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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