Blizzard in Wisconsin, February 24 to 25, 2007

Name: Blizzard in Wisconsin, February 24 to 25, 2007
Start: 2007-02-24T18:00
End: 2007-02-25T01:39
Location: Wisconsin

February 24 to 25, 2007 · NWS MKX · 3 events in 3 counties and zones

Where it happened

Every event with a place to put it; 3 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: $75,000
Crop damage: None recorded
Events: 3

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS MKX wrote it up.

A blizzard event affected the counties of Milwaukee, Rock, and Walworth overnight from the 24th into the 25th. Convective bands of heavy snow, with hourly snowfall rates of 1 to 2 inches moved through the area as east winds gusted to 30 to 38 knots (35 to 44 mph). Visibilities were reduced to 1/8 to 1/4 mile, and the blowing snow generated drifts of 1 to 4 feet in height. Thunder was heard. Snow accumulations include 9 to 10 inches in extreme northeast Rock County, 10 inches in Whitewater (Walworth Co.), 7 inches in Hales Corner (Milwaukee Co.), and 5.5 inches at Milwaukee Mitchell Field (Milwaukee Co.). Within a mile or so of the Lake Michigan shoreline in Milwaukee County the accumulations were only 1 to 3 inches due to the warming effects of Lake Michigan. Ultimately, about 11,000 customers lost electrical service due to the heavy wet snow accumulating on power-lines as the gusty winds pushed the lines around (mostly in the counties of Sheboygan, Washington, Waukesha, Milwaukee, and Racine). Many airplane flights were cancelled or delayed at Milwaukee Mitchell Field (Milwaukee Co.). Refer to related stories in the other blizzard and winter storm events in south-central and southeast Wisconsin during the period of February 23-25, 2007.|Starting during the overnight hours of the 25th, periods of leftover, wrap-around snow affected southern Wisconsin until about 0600CST on February 26th. This leftover snow accumulated another 1 to 4 inches. Consequently, the total new snowfall for the period of February 23-26, 2007 ranged from 8 to 12 inches near the Illinois border to 19 to 21 inches from Wisconsin Dells to the Fond du Lac area, with lesser amounts near the Lake Michigan shoreline.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Milwaukee, WI wrote its last area forecast discussion before the first event at Feb 24, 3:50 PM CST, 2 hours 10 minutes earlier.

Area forecast discussion, Feb 24, 3:50 PM CST, 2 hours 10 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
350 PM CST SAT FEB 24 2007

FORECAST FOCUS SQUARELY ON MAJOR STORM MOVING ACROSS UPPER MIDWEST
TONIGHT AND SUNDAY.

.SHORT TERM...
MODELS ALL IN GOOD AGREEMENT THAT BLIZZARD CONDITIONS WILL DEVELOP
OVER CWA...BEGINNING IN THE SOUTHWEST BY EARLY EVENING AND RAPIDLY
SPREADING NEWD ACROSS REST OF CWA AS LARGE DEEP CLOSED SYSTEM LIFTS
NE OUT OF SRN PLAINS. HAVE TRENDED CLOSER TO THE MORE CONSISTENT GFS
FOR DETAILS. CURRENT 3 HRLY PRESSURE FALLS ALIGN WELL WITH PROJECTED
PATH THAT WOULD TAKE LOW ACROSS NRN MO TO W CNTRL IL TONIGHT...AND
INTO NRN IL SUNDAY.

TIGHT THERMAL GRADIENT VERY CLOSE TO WI/IL/IA BORDER...12Z DVN
SOUNDING HAD +6C AT 850 MB...WITH GRB AT -3C...HAS PLAYED HAVOC WITH
WARM CONVEYOR BELT PCPN TYPE JUST TO OUR WEST WITH A SIGNIFICANT ICE
STORM OVER PARTS OF IA AND SRN MN...WITH 1/4 TO 1/2 INCH ICE
ACCUMULATION DROPPING TREES AND POWER LINES.

SO FAR ONLY LIGHT ICE PELLETS AND LGT SNOW REPORTED IN FAR WRN
CWA...AND ONLY VIRGA DETECTED IN REMAINDER OF CWA AS THE DRY AIR
BETWEEN 925 MB AND 750 MB DEPICTED ON KMSN FCST SOUNDINGS HAS
PREVENTED ANY PCPN FROM REACHING GROUND...AS EVIDENCED BY DEVELOPING
RING OF 5 TO 10 DBZ RETURNS AROUND 5-6K FT ON MKX 88-D.

CROSS-SECTIONS SHOW A NARROW WEDGE OF >=0C 850 TEMPS OVER THE SRN
CWA WILL EVAPORATIVELY COOL AS SATURATION INTENSIFIES WITH 50KT
LOW-LVL JET IMPINGING ON BAROCLINIC ZONE...AND OVERSPREAD CWA FROM
SOUTH TO NORTH BETWEEN 00Z AND 03Z. THERMAL PROFILES SUGGEST INITIAL
PCPN WILL FALL MAINLY AS SNOW...AS EVEIDENCED BY FZRA/PL AT KPDC AND
KDBQ GOING OVER TO ALL SNOW...AS WELL AS ALL SNOW WITH A LEAD BAND
OF PCPN AT KMRJ...THO SOUTHERN CWA WILL STILL HAVE A LOBE OF >=0C
TEMPS BETWEEN 900MB AND 825 MB THAT COULD STILL PRODUCE SOME SLEET
IN THE EARLY EVENING.

UPPER DIFLUENT FLOW WILL COMBINE WITH ISENTROPIC LIFT TO PRODUCE
MORE WIDESPREAD MODERATE TO HEAVY SNOW ACROSS CWA BY 03Z. TIGHTENING
PRESSURE GRADIENT WILL LEAD TO SUSTAINED WINDS IN THE 25 TO 30 MPH
RANGE...WITH FREQUENT GUSTS TO 35 TO 40 MPH...AS FCST SNDGS TAP 40
TO 55 KT WINDS BETWEEN 1K AND 2K FT.

IN THE LONGER TERM...MODELS CONTINUE TO SHOW OCCLUDING SYTEM FILLING
AND STACKING OVER NRN IL AND LINGERING IN RGN UNTIL TUE MORNING.
WHILE SIGNIFICANT SNOW WILL WIND DOWN SUNDAY AFTERNOON...WITH WINDS
SUBSIDING AS GRADIENT BAGS OUT WITH SFC LOW IN THE
VICINITY...PERSISTENT PERIODS OF LIGHT SNOW WILL ADD TO LONGER TERM
SNOW TOTALS. IN ADDITION LAKE SHORE COUNTIES COULD SEE LAKE EFFECT
SNOWS IF PREFERRABLE FETCH SETS UP AS INDICATED BY GFS SFC FCSTS.

AFTER TUESDAY...WEATHER LOOKS QUIET UNTIL NEXT SYSTEM FCST TO PASS
TO OUR WEST...BRINGING RAIN..OR A RAIN/SNOW MIX TO CWA LATE WED INTO
THURSDAY.

&&

.AVIATION...CURRENT LULL ENDING AS PCPN SHIELD MOVING INTO SW WI
WILL OVERSPREAD SRN WI EARLY THIS EVENING. CURRENT VFR CIGS WILL
DROP RAPIDLY ALONG WITH VSBYS...AS STEADY MODERATE SNOW SHOULD REACH
MSN AROUND 00Z...AND MKE NO LATER THAN 02Z. WITH GUSTY EASTERLY
WINDS INCREASING THRU THE EVENING TO 25 TO 30 KNOT SUSTAINED...AND
GUSTS TO 40 KTS BY 03Z.

&&

MKX WATCHES/WARNINGS/ADVISORIES...
BLIZZARD WARNING IN EFFECT UNTIL 6 PM CST SUNDAY FOR
WIZ062-067-068.

BLIZZARD WARNING FROM 6 PM THIS EVENING TO 6 PM CST SUNDAY FOR
WIZ046-047-051-052-056>060-063>066-069>072.

&&

09/09/10

Hazardous weather outlook, Feb 24, 6:00 PM CST, 0 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
600 PM CST SAT FEB 24 2007

WIZ046-047-051-052-056>060-062>072-251045-
MARQUETTE-GREEN LAKE-FOND DU LAC-SHEBOYGAN-SAUK-COLUMBIA-DODGE-
WASHINGTON-OZAUKEE-IOWA-DANE-JEFFERSON-WAUKESHA-MILWAUKEE-
LAFAYETTE-GREEN-ROCK-WALWORTH-RACINE-KENOSHA-
600 PM CST SAT FEB 24 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EAST CENTRAL
WISCONSIN...SOUTH CENTRAL WISCONSIN AND SOUTHEAST WISCONSIN.

.DAY ONE...TONIGHT

A BLIZZARD WARNING IS IN EFFECT TONIGHT FOR ALL OF SOUTH CENTRAL
AND SOUTHEAST WISCONSIN. PERIODS OF HEAVY SNOW AND STRONG EAST WINDS
WILL RESULT IN WHITEOUT CONDITIONS AT TIMES. THE HEAVY SNOW MAY BE
ACCOMPANIED BY LIGHTNING AND THUNDER.

CHECK THE LATEST WINTER WEATHER STATEMENT FOR ALL THE DETAILS
CONCERNING THIS WINTER STORM EVENT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

A BLIZZARD WARNING WILL REMAIN IN EFFECT THROUGH 6 PM CST SUNDAY.
BLUSTERY EAST WINDS WILL CONTINUE TO CAUSE NEAR WHITEOUT CONDITIONS
AT TIMES.

THE SNOW INTENSITY AND WINDS WILL DIMINISH LATER SUNDAY
MORNING...HOWEVER OCCASIONAL SNOW WILL PERSIST INTO MONDAY ALONG
WITH AREAS OF BLOWING AND DRIFTING. TOTAL NEW SNOWFALL OF 12 TO 16
INCHES IS EXPECTED.

.SPOTTER INFORMATION STATEMENT...

REPORTS OF SNOWFALL AND SNOW INTENSITY AS WELL AS PRECIPITATION
TYPE ARE APPRECIATED THIS WEEKEND.

LMZ643>646-665-251045-
SHEBOYGAN TO PORT WASHINGTON-
PORT WASHINGTON TO NORTH POINT LIGHTHOUSE-
NORTH POINT LIGHTHOUSE TO WIND POINT-
WIND POINT TO WINTHROP HARBOR ILLINOIS-
WISCONSIN ADJACENT OPEN WATERS OF LAKE MICHIGAN TO MID LAKE-
600 PM CST SAT FEB 24 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF LAKE MICHIGAN.

.DAY ONE...TONIGHT

PERIODS OF HEAVY SNOW ACCOMPANIED BY LIGHTNING ARE EXPECTED TONIGHT.
A GALE WARNING IS IN EFFECT TONIGHT.

STRONG EAST WINDS WILL RESULT IN FREEZING SPRAY.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY

A GALE WARNING REMAINS IN EFFECT THROUGH SUNDAY MORNING. SMALL
CRAFT ADVISORY CONDITIONS ARE LIKELY TO BE MET SUNDAY AFTERNOON
THROUGH MONDAY.

TZ
WWW.WEATHER.GOV/MKX

In the hours before

Local storm report, Feb 24, 1:36 PM CST, 4 hours 24 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
136 PM CST SAT FEB 24 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0700 AM     SNOW             KEWASKUM                43.52N 88.23W
02/24/2007  M8.2 INCH        WASHINGTON         WI   PUBLIC

            AVERAGE OF 5 MEASUREMENTS TAKEN AROUND 700 AM

&&

PJS

Local storm report, Feb 24, 2:46 PM CST, 3 hours 14 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
246 PM CST SAT FEB 24 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0800 AM     SNOW             GENESSEE                42.95N 88.36W
02/24/2007  M5.5 INCH        WAUKESHA           WI   PUBLIC

0800 AM     SNOW             4 W BROOKFIELD          43.06N 88.20W
02/24/2007  E6.0 INCH        WAUKESHA           WI   PUBLIC

0846 AM     SNOW             6 NNW VERONA            43.07N 89.58W
02/24/2007  M7.0 INCH        DANE               WI   TRAINED SPOTTER

0900 AM     SNOW             OREGON                  42.93N 89.38W
02/24/2007  M6.5 INCH        DANE               WI   TRAINED SPOTTER

            TOTAL SNOW DEPTH OF 8.0 INCHES ON GROUND.

0900 AM     SNOW             KEWASKUM                43.52N 88.23W
02/24/2007  M7.2 INCH        WASHINGTON         WI   TRAINED SPOTTER

0900 AM     SNOW             RIPON                   43.85N 88.84W
02/24/2007  M5.6 INCH        FOND DU LAC        WI   PUBLIC

0930 AM     SNOW             2 S WAUKESHA            42.98N 88.24W
02/24/2007  E6.0 INCH        WAUKESHA           WI   PUBLIC

0930 AM     SNOW             FRANKSVILLE             42.76N 87.91W
02/24/2007  E5.0 INCH        RACINE             WI   TRAINED SPOTTER

1000 AM     SNOW             GREENFIELD              42.96N 88.01W
02/24/2007  M4.5 INCH        MILWAUKEE          WI   PUBLIC

1000 AM     SNOW             PORTAGE                 43.55N 89.47W
02/24/2007  M6.5 INCH        COLUMBIA           WI   CO-OP OBSERVER

1000 AM     SNOW             4 NW PRINCETON          43.89N 89.19W
02/24/2007  M7.8 INCH        MARQUETTE          WI   PUBLIC

1120 AM     SNOW             DEFOREST                43.25N 89.35W
02/24/2007  M5.8 INCH        DANE               WI   TRAINED SPOTTER

0115 PM     SNOW             2 N MILWAUKEE           43.09N 87.97W
02/24/2007  M5.5 INCH        MILWAUKEE          WI   NWS EMPLOYEE

0230 PM     SNOW             JACKSON                 43.32N 88.16W
02/24/2007  M9.0 INCH        WASHINGTON         WI   TRAINED SPOTTER

&&

DRH

Local storm report, Feb 24, 2:48 PM CST, 3 hours 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
248 PM CST SAT FEB 24 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0500 AM     SNOW             2 NNE SUN PRAIRIE       43.21N 89.22W
02/24/2007  M6.0 INCH        DANE               WI   CO-OP OBSERVER

&&

DRH

Local storm report, Feb 24, 2:50 PM CST, 3 hours 10 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
250 PM CST SAT FEB 24 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1200 AM     HEAVY SNOW       1 N VERONA              43.00N 89.54W
02/24/2007  M6.2 INCH        DANE               WI   TRAINED SPOTTER

            MEASURED 6.2 INCHES 1 MILE NORTH OF VERONA.

1200 AM     HEAVY SNOW       3 S MADISON             43.04N 89.39W
02/24/2007  M7.0 INCH        DANE               WI   TRAINED SPOTTER

            MEASURED 7.0 INCHES NEAR RIMROCK ROAD AND BELTLINE
            HIGHWAY.

1200 AM     SNOW             2 W LAKE MILLS          43.07N 88.95W
02/24/2007  M5.0 INCH        JEFFERSON          WI   TRAINED SPOTTER

            MEASURED 5.0 INCHES 2 MILES WEST OF LAKE MILLS.

1200 AM     SNOW             3 SE SULLIVAN           42.98N 88.55W
02/24/2007  M2.6 INCH        JEFFERSON          WI   OFFICIAL NWS OBS

            MEASURED 2.6 INCHES 3 MILES SOUTHEAST OF SULLIVAN...AT
            THE NWS FORECAST OFFICE.

1200 AM     HEAVY SNOW       5 NE MADISON            43.13N 89.32W
02/24/2007  M6.0 INCH        DANE               WI   OFFICIAL NWS OBS

            MEASURED 6.0 INCHES AT DANE COUNTY REGIONAL AIRPORT.

1209 AM     SNOW             1 NW PORTAGE            43.56N 89.48W
02/24/2007  M4.0 INCH        COLUMBIA           WI   TRAINED SPOTTER

            MEASURED 4.0 INCHES 1 MILE NORTHWEST OF PORTAGE.

1210 AM     SNOW             2 N MILWAUKEE           43.09N 87.97W
02/24/2007  M3.2 INCH        MILWAUKEE          WI   NWS EMPLOYEE

            MEASURED 3.2 INCHES 2 MILES NORTH OF MILWAUKEE...NEAR
            UW-MILWAUKEE CAMPUS.

1212 AM     SNOW             FOND DU LAC             43.77N 88.45W
02/24/2007  M2.0 INCH        FOND DU LAC        WI   TRAINED SPOTTER

            MEASURED 2.0 INCHES IN FOND DU LAC.

1215 AM     HEAVY SNOW       MIDDLETON               43.10N 89.51W
02/24/2007  M7.3 INCH        DANE               WI   CO-OP OBSERVER

            7.3 INCHES MEASURED AT MIDDLETON.

1217 AM     SNOW             3 S LA GRANGE           42.76N 88.60W
02/24/2007  M3.5 INCH        WALWORTH           WI   TRAINED SPOTTER

            MEASURED 3.5 INCHES 3 MILES SOUTH OF LA GRANGE.

1220 AM     SNOW             2 NW KENOSHA            42.60N 87.88W
02/24/2007  M4.2 INCH        KENOSHA            WI   TRAINED SPOTTER

            MEASURED 4.2 INCHES ON 24TH STREET IN KENOSHA.

1230 AM     HEAVY SNOW       1 WNW PRAIRIE DU SAC    43.30N 89.75W
02/24/2007  M6.5 INCH        SAUK               WI   TRAINED SPOTTER

            MEASURED 6.5 INCHES 1 MILE WEST NORTHWEST OF PRAIRIE DU
            SAC.

1230 AM     HEAVY SNOW       4 W MADISON             43.08N 89.47W
02/24/2007  M7.0 INCH        DANE               WI   TRAINED SPOTTER

            MEASURED 7.0 INCHES 4 MILES WEST OF MADISON.

1230 AM     HEAVY SNOW       2 WSW MADISON           43.07N 89.42W
02/24/2007  M6.6 INCH        DANE               WI   PUBLIC

            MEASURED 6.6 INCHES 2 MILES WEST SOUTHWEST OF
            MADISON...AT THE UW-MADISON CAMPUS.

1238 AM     SNOW             KEWASKUM                43.52N 88.23W
02/24/2007  M2.5 INCH        WASHINGTON         WI   TRAINED SPOTTER

            MEASURED 2.5 INCHES AT KEWASKUM.

0100 AM     HEAVY SNOW       2 SW SUN PRAIRIE        43.16N 89.26W
02/24/2007  M6.0 INCH        DANE               WI   TRAINED SPOTTER

            MEASURED 6.0 INCHES 2 MILES SOUTHWEST OF SUN PRAIRIE.

0100 AM     HEAVY SNOW       1 N VERONA              43.00N 89.54W
02/24/2007  M6.3 INCH        DANE               WI   TRAINED SPOTTER

            MEASURED 6.3 INCHES 1 MILE NORTH OF VERONA.

0100 AM     SNOW             3 W BEAVER DAM          43.46N 88.90W
02/24/2007  M3.9 INCH        DODGE              WI   TRAINED SPOTTER

            MEASURED 3.9 INCHES 3 MILES WEST OF BEAVER DAM...ON THE
            WEST SIDE OF BEAVER DAM LAKE.

0125 AM     HEAVY SNOW       1 N SUN PRAIRIE         43.20N 89.23W
02/24/2007  M7.5 INCH        DANE               WI   TRAINED SPOTTER

            MEASURED 7.5 INCHES 1 MILE NORTH OF SUN PRAIRIE.

0130 AM     SNOW             4 NW PRINCETON          43.89N 89.19W
02/24/2007  M4.3 INCH        MARQUETTE          WI   PUBLIC

0200 AM     SNOW             CALEDONIA               42.81N 87.92W
02/24/2007  M2.5 INCH        RACINE             WI   NWS EMPLOYEE

0220 AM     SNOW             MILWAUKEE               43.06N 87.97W
02/24/2007  M6.0 INCH        MILWAUKEE          WI   COUNTY OFFICIAL

0220 AM     HEAVY SNOW       SUSSEX                  43.14N 88.22W
02/24/2007  E5.5 INCH        WAUKESHA           WI   PUBLIC

0300 AM     SNOW             6 N OXFORD              43.87N 89.56W
02/24/2007  M7.4 INCH        MARQUETTE          WI   CO-OP OBSERVER

0300 AM     SNOW             2 W LAKE MILLS          43.07N 88.95W
02/24/2007  M6.5 INCH        JEFFERSON          WI   PUBLIC

0310 AM     HEAVY SNOW       2 N MILWAUKEE           43.09N 87.97W
02/24/2007  M5.0 INCH        MILWAUKEE          WI   NWS EMPLOYEE

            MEASURED AT UWM CAMPUS

0323 AM     HEAVY SNOW       HELENVILLE              43.01N 88.70W
02/24/2007  M6.0 INCH        JEFFERSON          WI   PUBLIC

0325 AM     SNOW             MILWAUKEE               43.06N 87.97W
02/24/2007  M1.0 INCH        MILWAUKEE          WI   COUNTY OFFICIAL

            NEW SNOWFALL SINCE 220 AM OBSERVATION...TOTAL ON THE
            GROUND 7 INCHES

0345 AM     HEAVY SNOW       1 NW PORTAGE            43.56N 89.48W
02/24/2007  E6.0 INCH        COLUMBIA           WI   PUBLIC

0425 AM     SNOW             MILWAUKEE               43.06N 87.97W
02/24/2007  M1.3 INCH        MILWAUKEE          WI   COUNTY OFFICIAL

            NEW SNOWFALL SINCE 330 AM REPORT...TOTAL SNOWFALL 8.3
            INCHES

0430 AM     SNOW             1 SSE GERMANTOWN        43.22N 88.11W
02/24/2007  M8.5 INCH        WASHINGTON         WI   TRAINED SPOTTER

0500 AM     SNOW             2 NNE SUN PRAIRIE       43.21N 89.22W
02/24/2007  M6.0 INCH        DANE               WI   CO-OP OBSERVER

0500 AM     SNOW             3 W BEAVER DAM          43.46N 88.90W
02/24/2007  M7.7 INCH        DODGE              WI   CO-OP OBSERVER

0500 AM     SNOW             2 NNE SUN PRAIRIE       43.21N 89.22W
02/24/2007  M7.0 INCH        DANE               WI   CO-OP OBSERVER

            HEAVY SNOW 800 PM TO 400 AM...MAX WIND GUST 33 MPH

0515 AM     SNOW             3 S BERLIN              43.93N 88.95W
02/24/2007  M8.5 INCH        GREEN LAKE         WI   PUBLIC

0525 AM     HEAVY SNOW       5 W MARKESAN            43.71N 89.09W
02/24/2007  E7.0 INCH        GREEN LAKE         WI   PUBLIC

            SIGNIFICANT BLOWING AND DRIFTING.

0530 AM     SNOW             1 N OAKFIELD            43.70N 88.55W
02/24/2007  M5.0 INCH        FOND DU LAC        WI   TRAINED SPOTTER

            MEASUREMENT WAS TAKEN AT 530 AM...THERE IS ALSO MUCH
            BLOWING AND DRIFTING

0535 AM     HEAVY SNOW       JACKSON                 43.32N 88.16W
02/24/2007  E8.0 INCH        WASHINGTON         WI   PUBLIC

0614 AM     HEAVY SNOW       TAYCHEEDAH              43.81N 88.40W
02/24/2007  E5.0 INCH        FOND DU LAC        WI   PUBLIC

0625 AM     SNOW             MILWAUKEE               43.06N 87.97W
02/24/2007  M8.8 INCH        MILWAUKEE          WI   COUNTY OFFICIAL

            0.8 INCHES OF NEW SNOW SINCE 430 AM OB

0642 AM     HEAVY SNOW       LAKE MILLS              43.07N 88.91W
02/24/2007  M4.8 INCH        JEFFERSON          WI   NWS EMPLOYEE

0652 AM     HEAVY SNOW       WAUKESHA                43.01N 88.24W
02/24/2007  E5.0 INCH        WAUKESHA           WI   PUBLIC

0658 AM     SNOW             MIDDLETON               43.10N 89.51W
02/24/2007  M6.5 INCH        DANE               WI   PUBLIC

            NEW SNOW

0700 AM     SNOW             KEWASKUM                43.52N 88.23W
02/24/2007  M8.2 INCH        WASHINGTON         WI   PUBLIC

            AVERAGE OF 5 MEASUREMENTS TAKEN AROUND 700 AM

0700 AM     SNOW             4 WSW HOWARDS GROVE     43.81N 87.90W
02/24/2007  M3.0 INCH        SHEBOYGAN          WI   PUBLIC

0705 AM     SNOW             1 SW WATERTOWN          43.18N 88.74W
02/24/2007  M6.0 INCH        JEFFERSON          WI   PUBLIC

            NEW SNOW

0705 AM     SNOW             2 NW BEAVER DAM         43.48N 88.87W
02/24/2007  M7.0 INCH        DODGE              WI   PUBLIC

            REPORT FROM BEAVER DAM WEST SHORE

0705 AM     SNOW             1 W LAKE MILLS          43.07N 88.93W
02/24/2007  E7.5 INCH        JEFFERSON          WI   PUBLIC

            NEW SNOW...DRIFTING IN THE AREA

0712 AM     SNOW             SHEBOYGAN               43.75N 87.73W
02/24/2007  M3.0 INCH        SHEBOYGAN          WI   PUBLIC

0720 AM     SNOW             HARTFORD                43.32N 88.39W
02/24/2007  M7.5 INCH        WASHINGTON         WI   TRAINED SPOTTER

0722 AM     SNOW             OCONOMOWOC              43.10N 88.50W
02/24/2007  M6.7 INCH        WAUKESHA           WI   NWS EMPLOYEE

0722 AM     SNOW             JEFFERSON               43.01N 88.81W
02/24/2007  M6.0 INCH        JEFFERSON          WI   NWS EMPLOYEE

0750 AM     SNOW             WEST BEND               43.42N 88.18W
02/24/2007  M7.5 INCH        WASHINGTON         WI   PUBLIC

            I TOOK A MEASUREMENT THIS MORNING SEVERAL TIMES ACROSS MY
            PATIO...AND WE RECEIVED ABOUT 7.5 INCHES OF SNOW LAST
            NIGHT AND THIS MORNING.

0750 AM     SNOW             FOND DU LAC             43.77N 88.45W
02/24/2007  M6.0 INCH        FOND DU LAC        WI   PUBLIC

0750 AM     SNOW             NNW VERONA              42.99N 89.54W
02/24/2007  M7.0 INCH        DANE               WI   PUBLIC

0800 AM     SNOW             4 W BROOKFIELD          43.06N 88.20W
02/24/2007  E6.0 INCH        WAUKESHA           WI   PUBLIC

0800 AM     SNOW             GENESSEE                42.95N 88.36W
02/24/2007  M5.5 INCH        WAUKESHA           WI   PUBLIC

0818 AM     SNOW             MILTON                  42.78N 88.95W
02/24/2007  M4.5 INCH        ROCK               WI   NWS EMPLOYEE

0846 AM     SNOW             6 NNW VERONA            43.07N 89.58W
02/24/2007  M7.0 INCH        DANE               WI   TRAINED SPOTTER

0858 AM     SNOW             5 SE LEBANON            43.20N 88.56W
02/24/2007  M6.3 INCH        DODGE              WI   TRAINED SPOTTER

0900 AM     SNOW             RIPON                   43.85N 88.84W
02/24/2007  M5.6 INCH        FOND DU LAC        WI   PUBLIC

0900 AM     SNOW             KEWASKUM                43.52N 88.23W
02/24/2007  M7.2 INCH        WASHINGTON         WI   TRAINED SPOTTER

0900 AM     SNOW             OREGON                  42.93N 89.38W
02/24/2007  M6.5 INCH        DANE               WI   TRAINED SPOTTER

            TOTAL SNOW DEPTH OF 8.0 INCHES ON GROUND.

0912 AM     SNOW             2 NNW WEST BEND         43.45N 88.20W
02/24/2007  M7.5 INCH        WASHINGTON         WI   PUBLIC

0912 AM     SNOW             MILWAUKEE               43.06N 87.97W
02/24/2007  M5.3 INCH        MILWAUKEE          WI   PUBLIC

0930 AM     SNOW             2 S WAUKESHA            42.98N 88.24W
02/24/2007  E6.0 INCH        WAUKESHA           WI   PUBLIC

0930 AM     SNOW             FRANKSVILLE             42.76N 87.91W
02/24/2007  E5.0 INCH        RACINE             WI   TRAINED SPOTTER

1000 AM     SNOW             4 NW PRINCETON          43.89N 89.19W
02/24/2007  M7.8 INCH        MARQUETTE          WI   PUBLIC

1000 AM     SNOW             PORTAGE                 43.55N 89.47W
02/24/2007  M6.5 INCH        COLUMBIA           WI   CO-OP OBSERVER

1000 AM     SNOW             GREENFIELD              42.96N 88.01W
02/24/2007  M4.5 INCH        MILWAUKEE          WI   PUBLIC

1043 AM     SNOW             MORRISONVILLE           43.28N 89.36W
02/24/2007  M5.8 INCH        DANE               WI   PUBLIC

            OVERNIGHT SNOWFALL WAS 5.8 INCHES WITH DRIFTS UP TO 25.0
            INCHES...RESULT OF WIND GUSTS UP TO 31 MPH LAST
            NIGHT...ROADS NOW OPEN AND PASSABLE...HOWEVER SIGNIFICANT
            DRIFTING CONTINUES

1106 AM     SNOW             PEWAUKEE                43.09N 88.25W
02/24/2007  M5.8 INCH        WAUKESHA           WI   PUBLIC

            TOTAL SNOW SINCE LAST NIGHT

1120 AM     SNOW             DEFOREST                43.25N 89.35W
02/24/2007  M5.8 INCH        DANE               WI   TRAINED SPOTTER

1247 PM     SLEET            REWEY                   42.84N 90.40W
02/24/2007  U0.00 INCH       IOWA               WI   LAW ENFORCEMENT

            SLEET IN REWEY REPORTED BY IOWA CO SHERIFF

1247 PM     SLEET            BENTON                  42.57N 90.38W
02/24/2007  U0.00 INCH       LAFAYETTE          WI   LAW ENFORCEMENT

            LIGHT SLEET IN BENTON AS OF 1245 PM

0111 PM     SNOW             FRANKSVILLE             42.76N 87.91W
02/24/2007  E5.0 INCH        RACINE             WI   PUBLIC

            TOTAL EVENT SNOWFALL...LOTS OF BLOWING AND DRIFTING AT
            CURRENT TIME

0111 PM     SNOW             2 N MILWAUKEE           43.09N 87.97W
02/24/2007  M5.5 INCH        MILWAUKEE          WI   NWS EMPLOYEE

            TOTAL NEW SNOWFALL 5.5 INCHES...BLOWING AND DRIFTING SNOW
            BEGINNING TO INCREASE

0115 PM     SNOW             2 N MILWAUKEE           43.09N 87.97W
02/24/2007  M5.5 INCH        MILWAUKEE          WI   NWS EMPLOYEE

0230 PM     SNOW             JACKSON                 43.32N 88.16W
02/24/2007  M9.0 INCH        WASHINGTON         WI   TRAINED SPOTTER

&&

DRH

Local storm report, Feb 24, 3:13 PM CST, 2 hours 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
313 PM CST SAT FEB 24 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0300 PM     SNOW             3 S WAUKESHA            42.97N 88.24W
02/24/2007  M6.0 INCH        WAUKESHA           WI   TRAINED SPOTTER

&&

DRH

Local storm report, Feb 24, 3:28 PM CST, 2 hours 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI
328 PM CST SAT FEB 24 2007

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0315 PM     SNOW             1 NE GLENDALE           43.15N 87.92W
02/24/2007  M8.3 INCH        MILWAUKEE          WI   NWS EMPLOYEE

&&

DRH

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

3 blizzard. Local standard time, as filed.

Blizzard, Rock

When: February 24, 6:00 PM CST to February 25, 1:39 AM CST
Where: Rock forecast zone
Reported by: COOP Observer
Coordinates: 42.671, -89.072 (the zone’s center; the record gives no point)

Blizzard, Walworth

When: February 24, 6:00 PM CST to February 25, 1:39 AM CST
Where: Walworth forecast zone
Reported by: COOP Observer
Coordinates: 42.669, -88.542 (the zone’s center; the record gives no point)

Blizzard, Milwaukee

When: February 24, 6:00 PM CST to February 25, 1:39 AM CST
Where: Milwaukee forecast zone
Property damage: $75,000
Reported by: COOP Observer
Coordinates: 43.022, -87.929 (the zone’s center; the record gives no point)

What these are

Blizzard: Sustained winds or frequent gusts of 35 mph or more with falling or blowing snow that cuts visibility below a quarter mile for three hours or longer.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Wisconsin in 2007 Every state in 2007 This day in weather history Warnings in Wisconsin, February 2007

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 17776, 17777, 17778.