National Weather Service United States Department of Commerce

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
653 AM EST THU MAR 1 2007

...THIS WINTER WAS A TALE OF TWO EXTREMES...BUT OVERALL IT WAS
JUST AVERAGE...

THE 2006-07 WINTER SEASON WAS FULL OF WEATHER EXTREMES...FROM
IMPRESSIVE STREAKS OF TEMPERATURES ABOVE NORMAL TO IMPRESSIVE
STREAKS OF TEMPERATURES BELOW ZERO. THIS WINTER WILL BE REMEMBERED
FOR ITS DRASTIC MID SEASON CHANGE IN TEMPERATURE AND PRECIPITATION...
TWO BLIZZARDS...INCLUDING ONE THAT DUMPED OVER A FOOT OF SNOW IN
MANY AREAS...AND RECORD COLD THAT BROUGHT 8 STRAIGHT DAYS OF BELOW
ZERO LOW TEMPERATURES TO FORT WAYNE AND 6 STRAIGHT DAYS BELOW ZERO
AT SOUTH BEND. THE WINTER ALSO INCLUDED BOUTS OF FLOODING...AN ICE
STORM...HEAVY LAKE EFFECT SNOWFALL...AND VERY STRONG WINDS OVER 50
MPH. ONCE THE FINAL AVERAGES WERE COMPUTED...THE WINTER OF 2006-07
TURNED OUT TO BE NEAR NORMAL IN MOST CATEGORIES.

BELOW IS A SUMMARY OF THE EVENTS FOR THE WINTER OF 2006-2007...WHICH
INCLUDED THE MONTHS OF DECEMBER...JANUARY AND FEBRUARY.

DECEMBER 2006 BEGAN WITH GENERALLY BELOW NORMAL TEMPERATURES THROUGH
DECEMBER 9TH. HOWEVER...THAT COLD AIR WAS QUICKLY REPLACED BY MORE
MILD PACIFIC AIR FROM DECEMBER 10TH THROUGH THE MIDDLE OF JANUARY.
IN FACT...SOUTH BEND INDIANA RECORDED 37 STRAIGHT DAYS OF ABOVE
NORMAL TEMPERATURES...FROM DECEMBER 10TH TO JANUARY 16TH. FORT WAYNE
INDIANA RECORDED 46 STRAIGHT DAYS OF NORMAL OR ABOVE NORMAL
TEMPERATURES...BEGINNING ON DECEMBER 10TH AND STRETCHING TO JANUARY
24TH.

THE WARM AIR ALSO HELPED KEEP PRECIPITATION MAINLY IN THE FORM OF
RAIN DURING DECEMBER AND THE FIRST HALF OF JANUARY. SEVERAL STRONG
STORMS MOVED THROUGH THE OHIO VALLEY...DRAWING MOISTURE NORTH FROM
THE GULF OF MEXICO AND EVEN THE EASTERN PACIFIC OCEAN. THESE SYSTEMS
DROPPED HEAVY RAIN ACROSS THE AREA ON SEVERAL OCCASIONS...LEADING TO
FLOODING ON MANY RIVERS THROUGHOUT DECEMBER AND JANUARY. SOUTH BEND
HAD MORE THAN A HALF INCH OF RAIN ON 6 DAYS IN DECEMBER AND
JANUARY...WHILE FORT WAYNE HAD A HALF INCH OR MORE ON 7 DAYS.

FOR THE MONTH OF DECEMBER...SNOWFALL WAS WELL BELOW NORMAL DUE TO
THE MILD AIR AND RAIN. ONLY 4 INCHES OF SNOW FELL IN DECEMBER AT
SOUTH BEND...15.2 INCHES BELOW NORMAL...AND 4.8 INCHES FELL AT FORT
WAYNE...3.5 INCHES BELOW NORMAL. DURING JANUARY...THINGS BEGAN TO
CHANGE AS MUCH COLDER ARCTIC AIR SETTLED IN. THROUGH JANUARY
15TH...SOUTH BEND HAD ONLY RECORDED A LITTLE MORE THAN AN INCH OF
SNOW FOR THE MONTH OF JANUARY...HOWEVER...BY THE END OF THE
MONTH...TOTAL JANUARY SNOWFALL WAS UP TO 25.3 INCHES. AT FORT
WAYNE...THROUGH JANUARY 15TH...ONLY A TRACE OF SNOW HAD FALLEN FOR
THE MONTH. BY THE END OF THE MONTH...TOTAL JANUARY SNOWFALL WAS UP
TO 8.7 INCHES.

THE DRAMATIC INCREASE IN SNOWFALL AT SOUTH BEND WAS ATTRIBUTED TO
SIGNIFICANT LAKE EFFECT SNOWFALL THAT BEGAN ONCE THE ARCTIC COLD AIR
ARRIVED. DUE TO THE VERY WARM START TO THE WINTER SEASON...LAKE
MICHIGAN WATER TEMPERATURES WERE WELL ABOVE NORMAL FOR MID JANUARY.
THIS SET THE STAGE FOR SEVERAL DAYS OF INTENSE LAKE EFFECT SNOW
BANDS OVER SOUTHERN LOWER MICHIGAN AND NORTHERN INDIANA. AT THE
SOUTHWEST MICHIGAN REGIONAL AIRPORT IN BENTON HARBOR
MICHIGAN...COOPERATIVE WEATHER OBSERVERS MEASURED 14 INCHES OF
SNOWFALL ON JANUARY 28TH AND 13 INCHES ON JANUARY 30TH. THEIR TOTAL
JANUARY SNOWFALL WAS 57 INCHES. MANY SCHOOLS AND BUSINESSES WERE
CLOSED FOR DAYS AS THE LAKE EFFECT SNOW CONTINUED TO POUND THE AREA.

THE ARCTIC COLD AIR REMAINED ENTRENCHED ACROSS SOUTHWEST LOWER
MICHIGAN...NORTHERN INDIANA AND NORTHWEST OHIO THROUGH MUCH OF
FEBRUARY. AT SOUTH BEND...22 OUT OF 28 DAYS HAD AVERAGE TEMPERATURES
AT OR BELOW NORMAL AND 7 DAYS WITH LOW TEMPERATURES BELOW
ZERO...INCLUDING 6 IN A ROW. MEASURABLE SNOW FELL ON 17 OF 28 DAYS.
THE FIRST 18 DAYS OF FEBRUARY SAW A TRACE OR MORE OF SNOW AT SOUTH
BEND. AT FORT WAYNE...22 OF 28 DAYS HAD TEMPERATURES AT OR BELOW
NORMAL AND 11 DAYS WITH LOW TEMPERATURES BELOW ZERO...INCLUDING 8 IN
A ROW. MEASURABLE SNOW FELL ON ONLY 7 OF 28 DAYS. HOWEVER...A TRACE
OR MORE OF SNOW WAS RECORDED ON 18 OF 28 DAYS. A TRACE IS NOT
CONSIDERED MEASURABLE PRECIPITATION.

FEBRUARY ALSO FEATURED TWO VERY DIFFERENT BLIZZARD EVENTS. ON
FEBRUARY 3RD...STRONG LOW PRESSURE MOVED THROUGH THE GREAT LAKES
REGION. THIS HELPED BRING LIGHT SNOW TO THE AREA...BUT ALSO
GENERATED WINDS IN EXCESS OF 45 MPH ACROSS THE ENTIRE AREA. A FEW
LOCATIONS EXPERIENCED PEAK WIND GUSTS UP TO 56 MPH. THESE STRONG
WINDS COUPLED WITH THE GENERALLY LIGHT SNOW REDUCED VISIBILITIES TO
LESS THAN ONE QUARTER MILE...CREATING WHITE OUT CONDITIONS IN MANY
AREAS.

ON FEBRUARY 13TH...YET ANOTHER BLIZZARD OCCURRED OVER MUCH OF
NORTHERN INDIANA...SOUTHWEST LOWER MICHIGAN AND NORTHWEST OHIO.
STRONG LOW PRESSURE MOVED THROUGH THE OHIO VALLEY AND COPIOUS
MOISTURE FROM THE GULF OF MEXICO WAS ONCE AGAIN DRAWN NORTH...A
SCENARIO REPEATED THROUGHOUT THE WINTER SEASON. HOWEVER...THIS TIME
THE ARCTIC COLD AIR WAS FULLY ENTRENCHED AND THE HEAVY PRECIPITATION
THAT HAD FALLEN AS RAIN EARLIER IN THE WINTER FELL AS SNOW. MOST
LOCATIONS RECEIVED OVER 6 INCHES OF SNOW...WHILE CERTAIN AREAS OF
NORTH CENTRAL INDIANA AND NORTHWEST OHIO RECEIVED BETWEEN 12 AND 18
INCHES OF SNOW. AS THIS LOW PRESSURE SYSTEM INTENSIFIED...EAST TO
NORTHEAST WINDS INCREASED TO BETWEEN 20 AND 30 MPH...WITH GUSTS NEAR
40 MPH. THIS CREATED SNOW DRIFTS OF 4 FEET OR GREATER AND LED MANY
COUNTIES TO PULL SNOW PLOWS OFF THE ROADS BECAUSE THEY COULD NOT
KEEP UP WITH THE BLOWING AND DRIFTING SNOW.

WHILE TEMPERATURES BEGAN TO MODERATE BACK TO NORMAL FOR THE LATTER
HALF OF FEBRUARY...THE WINTRY WEATHER WAS NOT FINISHED. YET ANOTHER
STRONG LOW PRESSURE SYSTEM MOVED OUT OF THE GULF COAST REGION AND
THROUGH THE OHIO VALLEY ON FEBRUARY 24TH AND 25TH...BRINGING
ABUNDANT MOISTURE BACK TO THE AREA. TEMPERATURES IN THE LOWER AND
MIDDLE ATMOSPHERE WERE WARM ENOUGH FOR RAIN TO FALL...BUT SURFACE
TEMPERATURES WERE ONLY IN THE MIDDLE AND UPPER 20S. THIS LED TO
WIDESPREAD FREEZING RAIN AND SLEET...WITH ICE ACCUMULATIONS RANGING
FROM A TENTH OF AN INCH TO AS MUCH AS A HALF INCH. SPORADIC POWER
OUTAGES AND DOWNED TREES WERE REPORTED...BUT SURFACE TEMPERATURES
QUICKLY ROSE ABOVE FREEZING AND MELTED THE ICE SHORTLY AFTER IT
ACCUMULATED.

OVERALL...THE WINTER SEASON AT BOTH SOUTH BEND AND FORT WAYNE ENDED
UP BEING NEAR NORMAL IN MOST CATEGORIES. THERE WERE NO NEW TOP 10
WINTER SEASON RECORDS FOR TEMPERATURE OR SNOWFALL AT SOUTH BEND OR
FORT WAYNE. ONLY FORT WAYNE RECORDED A NEW TOP 10 RECORD FOR
PRECIPITATION...COMING IN WITH 9.43 INCHES....THE 10TH WETTEST
WINTER SEASON ON RECORD.

SOUTH BEND AND FORT WAYNE ARE OFFICIAL CLIMATE LOCATIONS AND
REPRESENT THE GENERAL WEATHER ACROSS NORTHERN INDIANA...SOUTHWEST
LOWER MICHIGAN AND NORTHWEST OHIO.

THE OUTLOOK FOR SPRING 2007...MARCH...APRIL AND MAY...CALLS FOR
EQUAL CHANCES OF BELOW NORMAL...NORMAL...OR ABOVE NORMAL
TEMPERATURES AND PRECIPITATION. THIS GENERALLY MEANS THAT ANY OF
THESE CONDITIONS COULD OCCUR...OR A COMBINATION OF THESE CONDITIONS
COULD OCCUR OVER THE LENGTH OF THE SEASON. THERE ARE CURRENTLY NO
STRONG SIGNALS IN THE OCEANS OR ATMOSPHERE THAT WOULD SWAY THE
FORECAST WITH ANY CERTAINTY. THE CLIMATE PREDICTION CENTER
MAINTAINS THESE OUTLOOKS AND ARE UPDATED ROUTINELY. GRAPHICS AND
TEXT FORECASTS ARE AVAILABLE AT WWW.CPC.NOAA.GOV.

ADDITIONAL CLIMATE RECORDS...GRAPHS...DATA AND OUTLOOKS FOR A
VARIETY OF LOCATIONS ACROSS NORTHERN INDIANA...SOUTHWEST LOWER
MICHIGAN AND NORTHWEST OHIO ARE AVAILABLE ON THE NATIONAL WEATHER
SERVICE NORTHERN INDIANA WEBPAGE AT WWW.WEATHER.GOV/IWX. JUST SELECT
LOCAL UNDER THE CLIMATE MENU. TO READ ABOUT PAST WEATHER
EVENTS...SELECT WEATHER STORIES AND EVENTS UNDER LOCAL INFORMATION.


FORT WAYNE WINTER SUMMARY MONTH BY MONTH...

MONTH      AVG   DEPARTURE  PCPN  DEPARTURE  SNOW  DEPARTURE
           TEMP

DECEMBER   36.2   +7.2      4.73   +1.96       4.8   -3.5
JANUARY    29.8   +6.2      3.74   +1.69       8.7   -1.2
FEBRUARY   16.1   -11.2     0.96   -0.98      11.5   +3.9

WINTER     27.4   +0.8      9.43   +2.67      25.0   -0.8



SOUTH BEND WINTER SUMMARY MONTH BY MONTH...

MONTH      AVG   DEPARTURE  PCPN  DEPARTURE    SNOW   DEPARTURE
           TEMP

DECEMBER   35.6    +6.9     3.55    +0.46       4.0    -15.2
JANUARY    29.0    +5.6     3.50    +1.23      25.3    + 2.1
FEBRUARY   17.8    -9.5     1.38    -0.60      17.6    + 2.1

WINTER     27.5    +1.0     8.43    +1.09      46.9    -11.0

&&

LASHLEY