Climatological Report (Monthly)
Issued by NWS Marquette, MI

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000
CXUS53 KMQT 202358 AAC
CLMMQT

CLIMATE REPORT...PRELIMINARY
NATIONAL WEATHER SERVICE MARQUETTE MI
758 PM EDT TUE SEP 20 2016

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

...THE MARQUETTE MI CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1961 TO 2016

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            85   08/18        73      12       90  08/16
                        08/09
                        08/04
LOWEST             45   08/22        52      -7       39  08/27
AVG. MAXIMUM     75.4              74.3     1.1     73.7
AVG. MINIMUM     56.5              53.1     3.4     54.3
MEAN             65.9              63.7     2.2     64.0
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           4.53              3.05    1.48     2.70
DAILY AVG.       0.15              0.10    0.05     0.09
DAYS >= .01        14              10.7     3.3       11
DAYS >= .10         8               6.1     1.9        9
DAYS >= .50         3               1.9     1.1        1
DAYS >= 1.00        1               0.7     0.3        0
GREATEST
 24 HR. TOTAL    1.65   08/19 TO 08/20

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

DEGREE_DAYS
HEATING TOTAL      45               106     -61      100
 SINCE 7/1        100               185     -85      168
COOLING TOTAL      82                66      16       74
 SINCE 1/1        236               220      16      182
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              MM
HIGHEST WIND SPEED/DIRECTION    MM        DATE   MM
HIGHEST GUST SPEED/DIRECTION    33/180    DATE  08/04

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                1     RAIN                       1
LIGHT RAIN               18     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      4
HAZE                      0

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

&&

...AUGUST 2016 MONTHLY CLIMATE SUMMARY FOR UPPER MICHIGAN...
/THIS DISCUSSION DOES NOT INCLUDE CHIPPEWA AND MACKINAC COUNTIES/

...WARMER THAN NORMAL...
...FOURTH WARMEST AUGUST AT IRON MOUNTAIN...
...FIFTH WARMEST AUGUST AT NEWBERRY...
...SEVENTH WARMEST AUGUST AT MANISTIQUE...
...EIGHTH WARMEST AUGUST AT THE MARQUETTE NWS...
...NINTH WARMEST AUGUST AT MUNISING...

...WETTER THAN NORMAL ESPECIALLY OVER THE NORTHWEST HALF...
...TENTH HIGHEST AUGUST RAINFALL AT THE MARQUETTE NWS...

AUGUST CLIMATE STATISTICS FOR THE MARQUETTE NWS IN NEGAUNEE TOWNSHIP

                                    NORMAL   DEPARTURE
AVERAGE TEMPERATURE         65.9     63.7   PLUS    2.2
AVERAGE HIGH TEMPERATURE    75.4     74.3   PLUS    1.1
AVERAGE LOW TEMPERATURE     56.5     53.1   PLUS    3.4
HEATING DEGREE DAYS           45      106  MINUS     61
COOLING DEGREE DAYS           82       66   PLUS     16
TOTAL PRECIPITATION         4.53     3.05   PLUS   1.48
TOTAL SNOWFALL                 0        0             0

HIGHEST TEMPERATURE:                    85 ON 8/3...8/4...8/9
                                               AND 8/18
LOWEST TEMPERATURE:                     45 ON 8/22
GREATEST CALENDAR DAY PRECIPITATION:  1.59 ON 8/20
GREATEST 24 HOUR PRECIPITATION:       1.65 ON 8/19-8/20
GREATEST CALENDAR DAY SNOWFALL:          0
PEAK WIND SPEED:     33 MPH FROM THE SOUTH ON 8/4

DAILY RECORD PRECIPITATION ON 8/11...0.67 /OLD RECORD 0.52...2004/
DAILY RECORD PRECIPITATION ON 8/20...1.59 /0.48...1997/
TENTH HIGHEST AUGUST PRECIPITATION...4.53 /RECORD 8.59...1988/
---------------------------------------------------------------------
  ...SEPTEMBER THROUGH AUGUST CLIMATE STATS FOR THE MARQUETTE NWS...

            ...FOURTH WARMEST SEPTEMBER THROUGH AUGUST...
                       ...WETTER THAN NORMAL...

                         AVERAGE TEMPERATURE

              OBSERVED NORMAL DEPARTURE     RECORD           RANK
MARQUETTE NWS   42.8    40.1    +2.7     44.4 /2011-12/   4TH WARMEST

                            PRECIPITATION

              OBSERVED NORMAL DEPARTURE     RECORD           RANK
MARQUETTE NWS  39.33   35.68    +3.65   45.56 /1972-73/  14TH HIGHEST
---------------------------------------------------------------------
GREAT LAKES WATER LEVELS (FEET/METERS ABOVE MEAN SEA LEVEL)

                            LAKE SUPERIOR  LAKE MICHIGAN-HURON
8/01/16 DAILY MEAN          602.70/183.70     580.14/176.83
8/31/16 DAILY MEAN          602.69/183.70     580.09/176.81
AVG JUL 2016 DAILY MEAN     602.66/183.69     580.17/176.84
AVG AUG 2015 DAILY MEAN     602.63/183.68     579.81/176.72
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 REMAIN WELL ABOVE NORMAL IN AUGUST...

GENERALLY ABUNDANT RAINFALL AROUND THE WESTERN GREAT LAKES THROUGH
THE SUMMER ALLOWED WATER LEVELS ON LAKES SUPERIOR, MICHIGAN AND
HURON TO REMAIN NEARLY STEADY IN AUGUST DESPITE INCREASING WATER
TEMPERATURES THAT ENHANCED EVAPORATION. AT THE END OF AUGUST, WATER
LEVELS ON LAKE SUPERIOR WERE 6 TO 7 INCHES ABOVE NORMAL AND WITHIN
AN INCH OF THE LEVEL OBSERVED IN AUGUST 2015. THE LEVEL ON LAKES
MICHIGAN AND HURON WAS 10 TO 11 INCHES ABOVE AVERAGE ON 8/31 AND 3
TO 4 INCHES HIGHER THAN IN AUGUST 2015.

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

HIGHEST REPORTED TEMPERATURE...93 AT A SPOT ABOUT 10 MILES SOUTH OF
                                MUNISING ON 8/3

LOWEST REPORTED TEMPERATURE...33 AT THE SPOT SOUTH OF MUNISING
                               ON 8/22

HIGHEST AVERAGE TEMPERATURE...70.1 DEGREES AT IRON MOUNTAIN

LOWEST AVERAGE TEMPERATURE...62.7 DEGREES AT HERMAN IN BARAGA COUNTY

HIGHEST MONTHLY PRECIPITATION...7.18 INCHES AT HERMAN

LOWEST MONTHLY PRECIPITATION...2.97 INCHES AT NEWBERRY

WHILE THERE WERE NO EXTENDED, EXCESSIVE HEAT WAVES OVER UPPER
MICHIGAN IN AUGUST, A PREVAILING SOUTHWEST FLOW AROUND HIGH PRESSURE
THAT DOMINATED TO THE SOUTH AND EAST PREVENTED MORE THAN OCCASIONAL
INFLUXES OF COOLER CANADIAN AIR AND THUS BROUGHT WARMER THAN NORMAL
WEATHER MOST OF THE DAYS DURING THE MONTH ACROSS THE U.P. THE RESULT
WAS A MEAN AUGUST TEMPERATURE THAT RAN 2 TO 4 DEGREES ABOVE NORMAL.
MEAN MONTHLY TEMPERATURES BETWEEN ABOUT 63 TO 70 DEGREES WERE NEARLY
THE SAME AS THE JULY AVERAGE TO UP TO 3 DEGREES HIGHER THAN THE
VALUES OBSERVED IN JULY. MAXIMUM TEMPERATURES AT OR ABOVE 90 WERE
INFREQUENT AND OCCURRED ONLY ON 8/3 AND 8/4. LIKEWISE, THE ONLY DAY
THAT ANY SPOT ACROSS THE U.P. SAW THE MERCURY FALL INTO THE 30S WAS
ON 8/22.

AT MOST PLACES, THE DEPARTURE OF THE MONTHLY AVERAGE MINIMUM
TEMPERATURE FROM NORMAL WAS GREATER THAN THE MAXIMUM TEMPERATURE
ANOMALY. FOR INSTANCE AT NEWBERRY, THE AVERAGE AUGUST LOW
TEMPERATURE OF 59.5 DEGREES WAS 5.5 DEGREES ABOVE NORMAL WHILE THE
77.1 DEGREE MEAN MAXIMUM TEMPERATURE WAS ONLY 1.9 DEGREES ABOVE
AVERAGE.

AT MANY PLACES, AUGUST 2016 GOES DOWN IN THE RECORD BOOKS AS THE
AUGUST WITH THE FEWEST DAYS THAT HAD A MINIMUM TEMPERATURE UNDER 50.
FOR INSTANCE AT IRON MOUNTAIN, THERE WAS ONLY ONE MORNING WHEN THE
LOW TEMPERATURE FELL UNDER 50, COMPARED TO AN AVERAGE OF NINE DAYS
WHEN READINGS FALL BELOW THAT MARK DURING A TYPICAL AUGUST.

THE PREDOMINATING SOUTHWEST FLOW ALSO TRANSPORTED MOIST AIRMASSES
INTO THE UPPER GREAT LAKES. FREQUENT EPISODES OF SHOWERS AND
THUNDERSTORMS WERE THE RESULT AS PASSING DISTURBANCES INTERACTED
WITH THIS MOISTURE. AS HAS BEEN THE CASE THE LAST COUPLE OF MONTHS,
THE HEAVIEST RAINS TENDED TO FALL OVER THE NORTHWEST HALF OF UPPER
MICHIGAN. MANY PLACES IN THIS AREA PICKED UP 5 OR MORE INCHES OF
RAIN DURING AUGUST, WITH AS MUCH AS 7.18 INCHES FALLING OVER THE
HIGHER TERRAIN OF THE HURON MOUNTAINS AT HERMAN IN BARAGA COUNTY.
THE RAINFALL TOTALS OVER THE NORTHWEST HALF WERE AS MUCH AS 150-175
PERCENT OF THE AVERAGE AUGUST PRECIPITATION AT THESE SPOTS. AREAS
ACROSS EASTERN UPPER MICHIGAN SAW THE LEAST RAIN. THE 2.97 INCHES
THAT FELL AT NEWBERRY IS ABOUT 90 PERCENT OF THE TYPICAL AUGUST
RAINFALL THERE.
---------------------------------------------------------------------
  ...JUNE THROUGH AUGUST SUMMER CLIMATE STATS FOR UPPER MICHIGAN...

           ...ABOVE NORMAL PRECIPITATION AT MOST PLACES...

                         AVERAGE TEMPERATURE

               OBSERVED NORMAL DEPARTURE    RECORD          RANK
NEWBERRY         65.1    63.6    +1.5     67.9 /1955/   12TH WARMEST

IRON MOUNTAIN    68.0    66.0    +2.0     71.2 /1921/   13TH WARMEST

MARQUETTE NWS    64.0    63.3    +0.7     65.8 /2012/   16TH WARMEST

MANISTIQUE       64.0    63.0    +1.0     67.6 /1955/   18TH WARMEST

MUNISING         63.8    62.8    +1.0     67.2 /1955/   20TH WARMEST

HOUGHTON         64.2    62.7    +1.5     67.1 /1995/       ****

IRONWOOD         64.8    63.8    +1.0     68.2 /1933/       ****

                            PRECIPITATION

               OBSERVED NORMAL DEPARTURE    RECORD          RANK
MANISTIQUE      12.85    8.86    +3.99   15.21 /2010/    8TH HIGHEST

MARQUETTE NWS   11.56    8.73    +2.83   17.89 /1968/    9TH HIGHEST

IRONWOOD        16.84   11.13    +5.71   20.96 /1909/   10TH HIGHEST

MUNISING        11.91    9.11    +2.80   17.35 /2010/   21ST HIGHEST

HOUGHTON        10.15    7.48    +2.67   16.49 /1951/       ****

MARQUETTE CITY  10.60    8.13    +2.47   17.29 /1949/       ****

NEWBERRY         8.97    9.31    -0.34   16.07 /1952/       ****

IRON MOUNTAIN    9.81   10.19    -0.38   21.80 /1951/       ****

**** RANK NOT IN TOP 25

---------------------------------------------------------------------
   ...SEPTEMBER THROUGH AUGUST CLIMATE STATS FOR UPPER MICHIGAN...

               ...TOP FIVE WARMEST AT MOST PLACES...
          ...ABOVE NORMAL PRECIPITATION AT MOST PLACES...
                  ...RECORD WETTEST AT IRONWOOD...

                         AVERAGE TEMPERATURE

               OBSERVED NORMAL DEPARTURE    RECORD           RANK
IRON MOUNTAIN    45.7    42.3    +3.4   46.6 /2011-12/    2ND WARMEST

MANISTIQUE       44.3    41.8    +2.5   45.2 /2011-12/    2ND WARMEST

HOUGHTON         43.9    40.5    +3.4   44.9 /2011-12/    4TH WARMEST

NEWBERRY         44.9    42.0    +2.9   46.5 /2011-12/    4TH WARMEST

MARQUETTE NWS    42.8    40.1    +2.7   44.4 /2011-12/    4TH WARMEST

MUNISING         44.2    42.1    +2.1   45.5 /2011-12/    5TH WARMEST

IRONWOOD         43.2    40.1    +3.1   44.6 /2011-12/    8TH WARMEST

                            PRECIPITATION

                                        /OR PREVIOUS/
              OBSERVED NORMAL DEPARTURE    RECORD            RANK
IRONWOOD       51.44   34.93   +16.51  51.37 /2012-13/ RECORD HIGHEST

MANISTIQUE     38.90   30.17    +8.73  41.43 /1978-79/    2ND HIGHEST

MUNISING       42.90   38.45    +4.45  49.00 /1959-60/    6TH HIGHEST

MARQUETTE NWS  39.33   35.68    +3.65  45.56 /1972-73/   14TH HIGHEST

NEWBERRY       34.99   34.23    +0.76  53.30 /2001-02/   19TH HIGHEST

IRON MOUNTAIN  31.93   29.72    +2.21  37.87 /1998-99/   24TH HIGHEST

MARQUETTE CITY 33.55   29.13    +4.42  36.82 /1995-96/       ****

HOUGHTON       35.88   32.18    +3.70  44.73 /1950-51/       ****

**** RANK NOT IN TOP 25
---------------------------------------------------------------------
SOME OTHER TEMPERATURE AND PRECIPITATION OBSERVATIONS ACROSS UPPER
MICHIGAN IN AUGUST 2016 INCLUDE:

IRONWOOD...AVERAGE TEMPERATURE 66.3 /2.2 DEGREES ABOVE NORMAL/
           PRECIPITATION 4.49 INCHES /1.12 INCHES ABOVE NORMAL/

WATERSMEET (GOGEBIC COUNTY)...PRECIPITATION 5.64 INCHES

GREENLAND (ONTONAGON COUNTY)...AVERAGE TEMPERATURE 65.4 DEGREES
                               PRECIPITATION 4.75 INCHES

BERGLAND DAM (ONTONAGON COUNTY)...AVERAGE TEMPERATURE 67.6 DEGREES
                                  PRECIPITATION 5.57 INCHES

HOUGHTON COUNTY...AVERAGE TEMPERATURE 67.0 /3.1 DEGREES ABOVE NORMAL/
 AIRPORT          PRECIPITATION 3.65 INCHES /1.24 INCHES ABOVE NORMAL/

ATLANTIC MINE (HOUGHTON COUNTY)...PRECIPITATION 6.65 INCHES

COPPER HARBOR...AVERAGE TEMPERATURE 67.6 DEGREES
                PRECIPITATION 2.99 INCHES

JACOBSVILLE (HOUGHTON COUNTY)...AVERAGE TEMPERATURE 64.8 DEGREES
                                PRECIPITATION 5.83 INCHES

BARAGA...AVERAGE TEMPERATURE 68.8 DEGREES
         PRECIPITATION 5.00 INCHES

HERMAN (BARAGA COUNTY)...AVERAGE TEMPERATURE 62.7 DEGREES
                         PRECIPITATION 7.18 INCHES

CLARKSBURG (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 64.8 DEGREES
                                PRECIPITATION 4.32 INCHES

MARQUETTE CITY...AVERAGE TEMPERATURE 69.1 /2.5 DEGREES ABOVE NORMAL/
                 PRECIPITATION 4.14 INCHES /1.51 INCHES ABOVE NORMAL/

CHATHAM (ALGER COUNTY)...AVERAGE TEMPERATURE 68.3 DEGREES
                         PRECIPITATION 3.67 INCHES

MUNISING...AVERAGE TEMPERATURE 66.9 /2.4 DEGREES ABOVE NORMAL/
           PRECIPITATION 4.32 INCHES /0.84 INCH ABOVE NORMAL/

NEWBERRY...AVERAGE TEMPERATURE 68.3 /3.7 DEGREES ABOVE NORMAL/
           PRECIPITATION 2.97 INCHES /0.26 INCH BELOW NORMAL/


STAMBAUGH (IRON COUNTY)...AVERAGE TEMPERATURE 64.8 DEGREES
                          PRECIPITATION 6.52 INCHES

AMASA (IRON COUNTY)...AVERAGE TEMPERATURE 66.7 DEGREES
                      PRECIPITATION 5.19 INCHES

FORD AIRPORT...AVERAGE TEMPERATURE 68.5 DEGREES
 NEAR IRON MOUNTAIN

IRON MOUNTAIN...AVERAGE TEMPERATURE 70.1 /3.7 DEGREES ABOVE NORMAL/
                PRECIPITATION 3.56 INCHES /0.30 INCH ABOVE NORMAL/

DAGGETT (MENOMINEE COUNTY)...PRECIPITATION 3.02 INCHES

MENOMINEE...PRECIPITATION 3.85 INCHES

ESCANABA...PRECIPITATION 3.30 INCHES

GLADSTONE (DELTA COUNTY)...PRECIPITATION 4.80 INCHES

GARDEN CORNERS (DELTA COUNTY)...AVERAGE TEMPERATURE 67.9 DEGREES
                                PRECIPITATION 4.17 INCHES

COOKS (SCHOOLCRAFT COUNTY)...PRECIPITATION 4.62 INCHES

MANISTIQUE...AVERAGE TEMPERATURE 68.0 /3.4 DEGREES ABOVE NORMAL/
             PRECIPITATION 4.43 INCHES /1.18 INCHES ABOVE NORMAL/

                        AUGUST WEATHER SUMMARY

MORE TO COME LATER.

                           OCTOBER FORECAST

THE CLIMATE PREDICTION CENTER (CPC) IS FORECASTING A GREATER THAN
CLIMATOLOGICAL CHANCE OF AN ABOVE NORMAL MONTHLY MEAN TEMPERATURE
BUT EQUAL CHANCES OF ABOVE AND BELOW NORMAL MONTHLY PRECIPITATION
ACROSS ALL OF UPPER MICHIGAN IN OCTOBER 2016.

                         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 INTO WINTER

THE CPC IS FORECASTING AN EQUAL CHANCE OF AN ABOVE AND BELOW NORMAL
3-MONTH AVERAGE TEMPERATURE AND 3-MONTH PRECIPITATION OVER ALL OF
UPPER MICHIGAN IN NOVEMBER 2016 THROUGH JANUARY 2017.

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.

THE 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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