Climatological Report (Monthly)
Issued by NWS Marquette, MI

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000
CXUS53 KMQT 152127 AAB
CLMMQT

CLIMATE REPORT...PRELIMINARY
NATIONAL WEATHER SERVICE MARQUETTE MI
530 PM EDT TUE APR 15 2014

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

...THE MARQUETTE MI CLIMATE SUMMARY FOR THE MONTH OF MARCH 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              81   03/21/2012
 LOW              -30   03/03/2003
HIGHEST            50   03/10        33      17       47  03/29
LOWEST            -19   03/03        14     -33       -4  03/14
                                                          03/04
AVG. MAXIMUM     27.5              34.7    -7.2     29.4
AVG. MINIMUM      3.8              13.8   -10.0     13.0
MEAN             15.6              24.2    -8.6     21.2
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     21              12.8     8.2       21
DAYS MIN <= 32     31              29.2     1.8       31
DAYS MIN <= 0      14               4.4     9.6        3

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.08   1979
 MINIMUM         0.28   2010
TOTALS           1.96              3.03   -1.07     3.29
DAILY AVG.       0.06              0.10   -0.04     0.11
DAYS >= .01        16              14.5     1.5       19
DAYS >= .10         8               7.2     0.8        8
DAYS >= .50         1               1.4    -0.4        1
DAYS >= 1.00        0               0.6    -0.6        1
GREATEST
 24 HR. TOTAL    0.58   03/27 TO 03/27

SNOWFALL (INCHES)
RECORDS
 TOTAL           83.1   2002
                        0
                        0
TOTALS           30.0              34.9    -4.9     48.8
SINCE 7/1       159.5             187.3   -27.8    182.6
SNOWDEPTH AVG.     34                21      13       37
DAYS >= 1.0         9               7.2     1.8       11
GREATEST
 SNOW DEPTH        41   03/28                         43  03/19
                                                          03/13
                                                          03/17
 24 HR TOTAL      6.5   03/27 TO 03/27

DEGREE_DAYS
HEATING TOTAL    1523              1263     260     1350
 SINCE 7/1       8845              7887     958     7660
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              MM
HIGHEST WIND SPEED/DIRECTION    MM        DATE   MM
HIGHEST GUST SPEED/DIRECTION    34/225    DATE  03/31

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               1
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                1     FREEZING RAIN              0
LT FREEZING RAIN          2     HAIL                       0
HEAVY SNOW                0     SNOW                       2
LIGHT SNOW               23     SLEET                      1
FOG                       0     FOG W/VIS <= 1/4 MILE      0
HAZE                      0

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

&&

...MARCH 2014 MONTHLY CLIMATE SUMMARY FOR UPPER MICHIGAN...
(THIS DISCUSSION DOES NOT INCLUDE CHIPPEWA AND MACKINAC COUNTIES)

...VERY COLD...
...RECORD COLDEST MARCH AT THE MARQUETTE NWS AND IRONWOOD...
...RECORD COLDEST MARCH AT MUNISING AND MANISTIQUE...
...RECORD COLDEST MARCH AT ONTONAGON...
...SECOND COLDEST MARCH AT IRON MOUNTAIN...
...FOURTH COLDEST MARCH AT HOUGHTON AND NEWBERRY...
...FIFTH COLDEST MARCH AT MARQUETTE CITY...

...NEAR TO BELOW NORMAL PRECIPITATION AND SNOWFALL...

MARCH CLIMATE STATISTICS FOR THE MARQUETTE NWS IN NEGAUNEE TOWNSHIP

                                    NORMAL   DEPARTURE
AVERAGE TEMPERATURE         15.6     24.2  MINUS    8.6
AVERAGE HIGH TEMPERATURE    27.5     34.7  MINUS    7.2
AVERAGE LOW TEMPERATURE      3.8     13.8  MINUS   10.0
HEATING DEGREE DAYS         1523     1263   PLUS    260
COOLING DEGREE DAYS            0        0             0
TOTAL PRECIPITATION         1.96     3.03  MINUS   1.07
TOTAL SNOWFALL              30.0     34.9  MINUS    4.9

HIGHEST TEMPERATURE:                    50 ON 3/10
LOWEST TEMPERATURE:                    -19 ON 3/3
GREATEST CALENDAR DAY PRECIPITATION:  0.58 ON 3/27
GREATEST 24 HOUR PRECIPITATION:       0.59 ON 3/27-3/28
GREATEST CALENDAR DAY SNOWFALL:        6.5 ON 3/27
GREATEST 24 HOUR SNOWFALL:             6.6 ON 3/27-3/28
GREATEST SNOW DEPTH:                    41 ON 3/28
PEAK WIND SPEED:     34 MPH FROM THE SOUTH ON 3/6
             AND 34 MPH FROM THE SOUTHWEST ON 3/31

DAILY RECORD LOW MAXIMUM TEMPERATURE ON 3/1...6 /OLD RECORD
                                                 8...1962/2009/
DAILY RECORD LOW MAXIMUM TEMPERATURE ON 3/2...5 /6...1989/
DAILY RECORD LOW MAXIMUM TEMPERATURE TIED ON 3/12...15
                                               /15...1992/2005/
DAILY RECORD LOW MINIMUM TEMPERATURE TIED ON 3/16...-16 /-16...1997/
DAILY RECORD LOW MAXIMUM TEMPERATURE TIED ON 3/25...13 /13...2001/
RECORD LOWEST MARCH MEAN TEMPERATURE...15.6 /16.9...1965/
---------------------------------------------------------------------
GREAT LAKES WATER LEVELS (FEET/METERS ABOVE MEAN SEA LEVEL)

                            LAKE SUPERIOR  LAKE MICHIGAN-HURON
03/01/14 DAILY MEAN         601.21/183.25     577.23/175.94
03/31/14 DAILY MEAN         601.15/183.23     577.32/175.97
AVG FEB 2014 DAILY MEAN     601.19/183.24     577.27/175.95
AVG MAR 2013 DAILY MEAN     600.08/182.90     576.23/175.63
LONG TERM MAR DAILY MEAN    601.12/183.22     578.38/176.29
MAXIMUM MAR DAILY MEAN      602.40/183.61     581.10/177.12
                                (1986)           (1986)
MINIMUM MAR DAILY MEAN      599.54/182.74     576.05/175.58
                                (1926)           (1964)

...GREAT LAKES WATER LEVELS REMAIN NEARLY STEADY IN MARCH...

DUE TO THE RECORD COLD WEATHER IN DECEMBER THROUGH MARCH...LAKE
SUPERIOR AND MUCH OF NORTHERN LAKE MICHIGAN WERE ALMOST COMPLETELY
ICE COVERED THROUGH MARCH. THE EXTENSIVE ICE COVER AND A NEAR
ABSENCE OF EVAPORATION IN THE PERSISTENTLY COLD WEATHER PATTERN
CAUSED THE LAKES TO REMAIN NEARLY STEADY THROUGH THE MONTH. AT THE
END OF MARCH...LAKES MICHIGAN/HURON WERE STILL ALMOST 13 INCHES
UNDER THE LONG TERM AVERAGE...WHILE LAKE SUPERIOR WAS AT A NEAR
NORMAL LEVEL. COMPARED TO THE END OF MARCH IN 2013...THE LEVEL ON
LAKES MICHIGAN/HURON WAS ABOUT 13 INCHES HIGHER ON 3/31 IN 2014.
LAKE SUPERIOR WAS ALSO ABOUT 13 INCHES HIGHER IN MARCH 2014 AS IN
2013.

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).
---------------------------------------------------------------------
                       MARCH CLIMATE HIGHLIGHTS

HIGHEST REPORTED TEMPERATURE...61 AT STONINGTON IN DELTA COUNTY
                                AND MENOMINEE ON 3/10

LOWEST REPORTED TEMPERATURE...-34 AT WAKEFIELD IN GOGEBIC COUNTY
                               ON 3/3

HIGHEST AVERAGE TEMPERATURE...20.4 DEGREES AT HARVEY IN MARQUETTE
                               COUNTY

LOWEST AVERAGE TEMPERATURE...11.0 DEGREES AT WATTON IN BARAGA
                              COUNTY

HIGHEST MONTHLY PRECIPITATION...2.54 INCHES AT GLADSTONE IN DELTA
                                 COUNTY

LOWEST MONTHLY PRECIPITATION...0.93 INCH AT IRON MOUNTAIN

HIGHEST MONTHLY SNOWFALL...35.4 INCHES AT HERMAN IN BARAGA COUNTY

GREATEST SNOW DEPTH...57 INCHES AT PAINESDALE ON 3/28

LOWEST MONTHLY SNOWFALL...9.0 INCHES AT IRON MOUNTAIN

THE SAME SHARP WESTERN NORTH AMERICAN RIDGE AND DEEP EASTERN TROUGH
THAT DOMINATED THE WEATHER PATTERN AND BROUGHT RECORD OR NEAR RECORD
COLD TO UPPER MICHIGAN IN DECEMBER THROUGH FEBRUARY PERSISTED
THROUGH MARCH...BRINGING ANOTHER VERY COLD MONTH TO THE U.P. AS THE
NORTHWEST FLOW BETWEEN THESE UPPER FEATURES DELIVERED FREQUENT
ARCTIC AIR INVASIONS TO THE NORTH CENTRAL STATES. EXTENSIVE ICE
COVER ON THE UPPER GREAT LAKES RELATED TO THE NOTABLE CHILL OBSERVED
FROM DECEMBER INTO MARCH ALSO LIMITED THE MODERATING INFLUENCE THESE
BODIES OF WATER OFTEN HAVE ON UPPER MICHIGAN TEMPERATURES. MEAN
MONTHLY TEMPERATURES BETWEEN 11 AND 20 DEGREES RAN 9 TO 13 DEGREES
BELOW THE LONG TERM MARCH AVERAGE AND WERE LOW ENOUGH TO EARN MARCH
2014 A SPOT IN THE LIST OF TOP FIVE COLDEST THIRD MONTHS ON RECORD.
IN FACT AT IRONWOOD...MUNISING...MANISTIQUE...ONTONAGON AND THE
MARQUETTE NWS OFFICE IN MARQUETTE COUNTY...MARCH 2014 GOES DOWN IN
THE RECORD BOOKS AS THE COLDEST MARCH SINCE OBSERVATIONS BEGAN AT
THOSE LOCATIONS. ON AVERAGE...MARCH WAS 6 TO 12 DEGREES WARMER THAN
FEBRUARY DUE TO INCREASING DAYLIGHT AND SOLAR ANGLE. BUT SINCE
PERSISTENT SNOW COVER SLOWED THE WARMING OF THE GROUND AND THE
MODERATION OF THE DEEP FROST DEPTH...SHALLOW WATER PIPES REMAINED
SUSCEPTIBLE TO FREEZING. AS WAS THE CASE IN FEBRUARY...MANY HOMES IN
THE U.P. SAW A DISRUPTION OF WATER SERVICE IN MARCH.

DURING THE COLDEST PERIODS FROM 3/1 THROUGH 3/5...3/12 INTO 3/13...
3/15 INTO 3/16 AND 3/23 INTO 3/26...MEAN DAILY TEMPERATURES AVERAGED
15 TO 25 DEGREES BELOW AVERAGE. SUB-ZERO MINIMUM TEMPERATURES WERE
COMMON DURING THESE TIMES. IN FACT...AT MANY LOCATIONS THERE WERE
MORE SUB-ZERO LOW TEMPERATURES IN MARCH 2014 THAN IN ANY PREVIOUS
MARCH. ON 15 DAYS DURING THE MONTH...MANISTIQUE AND IRON MOUNTAIN
REPORTED A SUB-ZERO LOW TEMPERATURE...WELL ABOVE THE PREVIOUS RECORD
OF 9 AND 11 DAYS AT EACH LOCATION RESPECTIVELY. THE MERCURY FELL
UNDER -30 DURING THE MORNING ON 3/3 AT SEVERAL OF THE INTERIOR COLD
SPOTS...INCLUDING THE MONTHLY LOW OF -34 AT WAKEFIELD IN GOGEBIC
COUNTY. STAMBAUGH IN IRON COUNTY AND STONINGTON IN DELTA COUNTY WERE
CLOSE BEHIND WITH A MINIMUM READING OF -33. AT LEAST ONE LOCATION IN
UPPER MICHIGAN REPORTED A LOW TEMPERATURE OF -10 OR LOWER ON 3/1
THROUGH 3/3...3/5...3/6...3/12...3/13...3/16... 3/17 AND 3/23
THROUGH 3/26.


WHEN THE DEEP TROUGH IN EAST CENTRAL NORTH AMERICA RELAXED...THERE
WERE BREAKS IN THE COLD. MANY LOCATIONS SAW THEIR FIRST 50-DEGREE
TEMPERATURES SINCE OCTOBER OR NOVEMBER ON 3/10...A DAY WHEN THE MEAN
DAILY TEMPERATURE PEAKED AT UP TO 15 DEGREES ABOVE NORMAL. THE
THERMOMETER EVEN REACHED 60 AT A FEW SPOTS OVER THE SOUTH CENTRAL ON
3/10...INCLUDING THE MONTHLY HIGH OF 61 AT MENOMINEE AND STONINGTON.
ANOTHER WARMER SPELL OF WEATHER THAT FEATURED HIGHS IN THE 50S
OCCURRED AT THE END OF MARCH...WHEN AN UPPER RIDGE TEMPORARILY BUILT
INTO THE GREAT LAKES. A LOCATION JUST INLAND FROM ONTONAGON REPORTED
A HIGH TEMPERATURE OF 57 ON 3/30.

MOST LOCATIONS RECORDED BELOW NORMAL PRECIPITATION AND SNOWFALL IN
MARCH. THE CAUSE WAS THE GENERAL NORTHWEST FLOW ALOFT THAT SHUNTED
MOST OF THE MOISTURE-LADEN LOW PRESSURE SYSTEMS THAT DEVELOPED IN
THE PLAINS TO THE SOUTH OF THE UPPER LAKES. THE EXTENSIVE ICE COVER
ON LAKE SUPERIOR ALSO GREATLY LIMITED LAKE EFFECT SNOWS. SINCE COLD
AIR WAS SO DOMINANT...MUCH OF THE MARCH PRECIPITATION FELL AS SNOW.

MORE TO COME LATER.
---------------------------------------------------------------------
    ...RECORD NUMBER OF SUB-ZERO LOW TEMPERATURE DAYS IN MARCH...

               OBSERVED   NORMAL   DEPARTURE   RECORD /OR PREVIOUS/

MANISTIQUE        15        2         13          9 /1971 & 1989/

IRON MOUNTAIN     15        3         12         11 /1960 & 1989/

HOUGHTON          13        2         11         11 /2003/

NEWBERRY          13        2         11         11 /1900 & 1905/

IRONWOOD          14        4         10         12 /1965 & 1969/

MARQUETTE NWS     14        5          9         11 /2003/

MUNISING          10        3          7         13 /1916/

MARQUETTE CITY     6        1          5         14 /1885/

---------------------------------------------------------------------
SOME OTHER TEMPERATURE AND PRECIPITATION OBSERVATIONS ACROSS UPPER
MICHIGAN IN MARCH 2014 INCLUDE:

IRONWOOD...AVERAGE TEMPERATURE 14.3 (10.8 DEGREES BELOW NORMAL)
           PRECIPITATION 1.94 INCHES (0.04 INCH BELOW NORMAL)
           SNOWFALL 26.4 INCHES (1.5 INCHES ABOVE NORMAL)

WATERSMEET (GOGEBIC COUNTY)...PRECIPITATION 1.24 INCHES
                              SNOWFALL 18.7 INCHES

ONTONAGON...SNOWFALL 15.1 INCHES

ONTONAGON...AVERAGE TEMPERATURE 19.9 (9.0 DEGREES BELOW NORMAL)
 (6 MILES   PRECIPITATION 1.87 INCHES (0.14 INCH ABOVE NORMAL)
  INLAND)   SNOWFALL 13.5 INCHES (5.4 INCHES BELOW NORMAL)

GREENLAND (ONTONAGON COUNTY)...AVERAGE TEMPERATURE 19.0 DEGREES
                               PRECIPITATION 1.68 INCHES
                               SNOWFALL 18.5 INCHES

BERGLAND DAM (ONTONAGON COUNTY)...SNOWFALL 22.4 INCHES

HOUGHTON COUNTY...AVERAGE TEMPERATURE 15.2 (10.0 DEGREES BELOW NORMAL)
 AIRPORT          PRECIPITATION 1.28 INCHES (0.28 INCH BELOW NORMAL)
                  SNOWFALL 16.9 INCHES (2.3 INCHES BELOW NORMAL)

ATLANTIC MINE (HOUGHTON COUNTY)...PRECIPITATION 1.55 INCHES
                                  SNOWFALL 23.5 INCHES

PAINESDALE (HOUGHTON COUNTY)...SNOWFALL 29.1 INCHES

COPPER HARBOR...AVERAGE TEMPERATURE 18.4 DEGREES

JACOBSVILLE (HOUGHTON COUNTY)...AVERAGE TEMPERATURE 12.5 DEGREES
                                PRECIPITATION 1.46 INCHES
                                SNOWFALL 16.1 INCHES

BARAGA...AVERAGE TEMPERATURE 17.3 DEGREES
         PRECIPITATION 1.47 INCHES
         SNOWFALL 19.1 INCHES

WATTON (BARAGA COUNTY)...AVERAGE TEMPERATURE 15.7 DEGREES
                         PRECIPITATION 1.82 INCHES
                         SNOWFALL 17.1 INCHES

HERMAN (BARAGA COUNTY)...AVERAGE TEMPERATURE 11.0 DEGREES
                         PRECIPITATION 1.79 INCHES
                         SNOWFALL 35.4 INCHES

CLARKSBURG (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 11.4 DEGREES
                                PRECIPITATION 1.66 INCHES
                                SNOWFALL 21.2 INCHES

BIG BAY (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 17.2 DEGREES
                             PRECIPITATION 1.93 INCHES
                             SNOWFALL 22.2 INCHES

MARQUETTE CITY...AVERAGE TEMPERATURE 17.6 (11.4 DEGREES BELOW NORMAL)
                 PRECIPITATION 1.70 INCHES (0.30 INCH BELOW NORMAL)
                 SNOWFALL 18.8 INCHES (2.9 INCHES BELOW NORMAL)

HARVEY (MARQUETTE COUNTY)...AVERAGE TEMPERATURE 20.4 DEGREES
                            PRECIPITATION 1.81 INCHES
                            SNOWFALL 24.6 INCHES

CHATHAM (ALGER COUNTY)...AVERAGE TEMPERATURE 14.4 DEGREES
                         PRECIPITATION 1.76 INCHES
                         SNOWFALL 20.7 INCHES

MUNISING...AVERAGE TEMPERATURE 14.7 (13.0 DEGREES BELOW NORMAL)
           PRECIPITATION 2.33 INCHES (0.24 INCH ABOVE NORMAL)
           SNOWFALL 25.5 INCHES (6.7 INCHES ABOVE NORMAL)

GRAND MARAIS...PRECIPITATION 2.15 INCHES
(10 MILES SOUTH) SNOWFALL 26.1 INCHES

NEWBERRY...AVERAGE TEMPERATURE 16.4 (10.4 DEGREES BELOW NORMAL)
           PRECIPITATION 1.26 INCHES (1.01 INCHES BELOW NORMAL)
           SNOWFALL 14.0 INCHES (3.9 INCHES BELOW NORMAL)

STAMBAUGH (IRON COUNTY)...AVERAGE TEMPERATURE 12.2 DEGREES
                          PRECIPITATION 1.17 INCHES
                          SNOWFALL 11.9 INCHES

AMASA (IRON COUNTY)...PRECIPITATION 1.29 INCHES
                      SNOWFALL 14.6 INCHES

IRON MOUNTAIN...AVERAGE TEMPERATURE 17.4 (10.5 DEGREES BELOW NORMAL)
                PRECIPITATION 0.93 INCH (0.72 INCH BELOW NORMAL)
                SNOWFALL 9.0 INCHES (1.6 INCHES BELOW NORMAL)

NORWAY (DICKINSON COUNTY)...AVERAGE TEMPERATURE 17.6 DEGREES
                            PRECIPITATION 1.27 INCHES
                            SNOWFALL 12.3 INCHES

DAGGETT (MENOMINEE COUNTY)...PRECIPITATION 1.50 INCHES
                             SNOWFALL 12.0 INCHES

ESCANABA...AVERAGE TEMPERATURE 18.9 DEGREES
           PRECIPITATION 2.14 INCHES
           SNOWFALL 16.8 INCHES

GLADSTONE (DELTA COUNTY)...PRECIPITATION 2.54 INCHES
                           SNOWFALL 26.3 INCHES

GARDEN CORNERS (DELTA COUNTY)...AVERAGE TEMPERATURE 12.9 DEGREES
                                PRECIPITATION 1.56 INCHES
                                SNOWFALL 16.7 INCHES

MANISTIQUE...AVERAGE TEMPERATURE 15.4 (11.7 DEGREES BELOW NORMAL)
             PRECIPITATION 1.29 INCHES (0.50 INCH BELOW NORMAL)
             SNOWFALL 12.0 INCHES (1.2 INCHES ABOVE NORMAL)

                        MARCH WEATHER SUMMARY

MORE TO COME LATE.

                           APRIL FORECAST

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

                         APRIL CLIMATOLOGY

AS THE SUN CONTINUES ITS MARCH NORTHWARD DURING THE FOURTH MONTH OF
THE YEAR...DAYLIGHT AND AVERAGE TEMPERATURES INCREASE STEADILY. THE
DAILY POSSIBLE SUNSHINE INCREASES FROM 769 MINUTES ON 4/1 TO 860
MINUTES ON THE LAST DAY OF THE MONTH. ON 4/1...NORMAL MAXIMUM AND
MINIMUM TEMPERATURES AT THE MARQUETTE NWS ARE 41 AND 21...BUT
REBOUND TO 55 AND 35 ON 4/30. MONTHLY AVERAGE TEMPERATURES
THROUGHOUT UPPER MICHIGAN ARE 12 TO 14 DEGREES HIGHER IN APRIL THAN
IN MARCH. THE RELATIVELY COOL WATERS OF THE GREAT LAKES OFTEN KEEP
TEMPERATURES NEAR THE SHORE DURING THE DAY MUCH LOWER THAN FARTHER
INLAND.

AVERAGE PRECIPITATION IN APRIL IS GREATER THAN IN MARCH OVER MUCH OF
INTERIOR UPPER MICHIGAN...BUT GENERALLY LESS IN AREAS NEAR LAKE
SUPERIOR AS THE RELATIVELY COOL WATERS INCREASE LOW LEVEL STABILITY
AND REDUCE THE THREAT OF LAKE EFFECT SNOW AND CONVECTIVE SHOWERS.
SNOWFALL DURING WARM AND/OR DRY APRILS ACROSS UPPER MICHIGAN IS
OFTEN LESS THAN AN INCH.

SUMMER-LIKE WEATHER CAN OCCUR DURING APRIL. RECORD HIGH TEMPERATURES
NEAR THE END OF THE MONTH GO ABOVE 90 IN SOME LOCATIONS...INCLUDING
THE 94 AND 92 DEGREE READINGS OBSERVED AT IRON MOUNTAIN AND THE
MARQUETTE NWS ON 4/22/80. ALTHOUGH APRIL 1987 IS THE WARMEST ON
RECORD OR AT LEAST IN THE TOP FIVE WARMEST AT MANY PLACES...THE
SECOND HALF OF APRIL 1990 STANDS OUT AS A PERIOD OF UNPRECEDENTED
WARMTH. IN FACT...THE WEEK BETWEEN 4/22/90 AND 4/29/90 IS THE
WARMEST ON RECORD AT ALL REPORTING STATIONS. TEMPERATURES DURING
THIS WEEK AVERAGED AS HIGH AS 68 AT MUNISING AND THE MARQUETTE
NWS...67 AT ONTONAGON...65 AT IRON MOUNTAIN...IRONWOOD AND
MANISTIQUE...64 AT HOUGHTON AND 62 AT NEWBERRY. AT MANY OF THESE
SITES... THE HIGHEST APRIL TEMPERATURE ON RECORD OCCURRED DURING
THIS WEEK...INCLUDING 89 AT MUNISING (4/26/90) AND ONTONAGON
(4/25/90)...88 AT HOUGHTON (4/25/90)...84 AT MANISTIQUE (4/26/90)
AND 82 AT NEWBERRY (4/25/90). SEVEN OF THE 10 HIGHEST APRIL MAXIMUM
TEMPERATURES RECORDED AT MANISTIQUE OCCURRED BETWEEN 4/23/90 AND
4/29/90. ALL OF THESE TEMPERATURES WOULD BE CONSIDERED NORMAL OR
EVEN ABOVE NORMAL DURING MID SUMMER.

WHEN APRIL TEMPERATURES SOAR QUICKLY WITH LINGERING DEEP WINTER SNOW
COVER...SNOWMELT CAN CAUSE SERIOUS FLOODING...ESPECIALLY IF HEAVY
RAINS FALL AROUND THE TIME OF WARMUP. IN 2002...THE COMBINATION OF
DEEP EARLY APRIL SNOW COVER AND A FEW DAYS OF HEAVY RAIN BEFORE
TEMPERATURES WARMED AS HIGH AS 80 TO 85 CAUSED DISASTROUS MID-APRIL
FLOODING IN WESTERN UPPER MICHIGAN. THE FLOODING WAS SO BAD IN
GOGEBIC COUNTY THEN MICHIGAN GOVERNOR JOHN ENGLER DECLARED THAT
COUNTY A DISASTER AREA AND DISPATCHED MICHIGAN NATIONAL GUARD TROOPS
TO ASSIST WITH RECOVERY. ALTHOUGH SEVERE WEATHER IS UNCOMMON ACROSS
UPPER MICHIGAN IN APRIL...AN OUTBREAK OF EARLY SEASON SEVERE
THUNDERSTORMS ENDED THIS PREMATURE SUMMER WARMTH IN APRIL 2002.

ALTHOUGH AVERAGE TEMPERATURES CLIMB QUICKLY IN APRIL AND SUMMER-LIKE
HEAT SOMETIMES HERALDS THE COMING WARM SEASON...WINTER CAN RETURN
WITH A VENGEANCE EVEN AT MONTHS END. RECORD HIGH MONTHLY SNOWFALL AT
ALMOST ALL LOCATIONS EXCEPT THE SOUTHERN TIER COUNTIES IS 20 INCHES
OR MORE. A HISTORIC BLIZZARD STRUCK THE NORTHERN COUNTIES OF UPPER
MICHIGAN ON 4/3 INTO 4/8 IN 2007. THE COMBINATION OF LAKE ENHANCED
SNOW AND NORTH WIND GUSTS AT OR ABOVE 50 MPH CAUSED WIDESPREAD
BLIZZARD CONDITIONS ON 4/4 AND 4/5 THAT YEAR NEAR LAKE SUPERIOR. BY
THE TIME THE SNOW ENDED EARLY ON 4/8/2007...AS MUCH AS 59.0 INCHES
HAD FALLEN AT PAINESDALE IN HOUGHTON COUNTY. IN APRIL 2013...A
PERSISTENT AND DEEP UPPER TROUGH OVER CENTRAL AND EASTERN NORTH
AMERICA RESULTED IN STUBBORN CHILL UNTIL THE LAST WEEK OF THE MONTH
AND SEVERAL HEAVY SNOW FALLS THAT PUSHED THE MONTHLY SNOWFALL TO
RECORD LEVELS AT OR ABOVE 50 INCHES AT SEVERAL LOCATIONS OVER
WESTERN UPPER MICHIGAN. MOST LOCATIONS ENDURED TOP 10 APRIL SNOWFALL
IN 2013. THE MERCURY HAS FALLEN AS LOW AS -12 AT IRONWOOD
(4/7/82)...-9 AT THE MARQUETTE NWS (4/6/2003)...-7 AT MANISTIQUE
(4/5/72)...-6 AT IRON MOUNTAIN (4/5/72)...-4 AT MUNISING (4/6/50)...
-2 AT NEWBERRY (4/1/23) AND ZERO AT HOUGHTON (4/4/54) AND ONTONAGON
(4/7/96). IRONWOOD HAS REPORTED TEMPERATURES WELL BELOW ZERO EVEN
AFTER MID MONTH...-8 AND -5 ON 4/17/83 AND 4/18/83 RESPECTIVELY.
APRIL 1995 AND 1996 WERE NOTORIOUSLY COLD ACROSS UPPER MICHIGAN WITH
TEMPERATURES AVERAGING FIVE DEGREES OR MORE BELOW NORMAL...AND MANY
PLACES COUNT THESE MONTHS IN THE TOP FIVE COLDEST APRILS ON RECORD.
APRIL 1950 STANDS OUT AS VERY CHILLY AT STATIONS WITH A LONGER
CLIMATE RECORD. THAT MONTH IS THE COLDEST APRIL AT NEWBERRY (AVERAGE
TEMPERATURE OF 29.9)...IRON MOUNTAIN (32.3) AND MUNISING (31.3) AND
IN THE TOP FIVE COLDEST AT IRONWOOD (31.0) AND MANISTIQUE (33.0).

               OUTLOOK FOR LATE SPRING INTO EARLY SUMMER

THE CLIMATE PREDICTION CENTER (CPC) IS FORECASTING EQUAL CHANCES OF
AN ABOVE AND BELOW NORMAL 3-MONTH MEAN TEMPERATURE AS WELL AS ABOVE
AND BELOW NORMAL 3-MONTH PRECIPITATION OVER ALL OF UPPER MICHIGAN IN
MAY THROUGH JULY.

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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