A Pacific storm is bringing areas of low elevation rain, moderate to heavy mountain snow, and high winds to the Northwest. Strong Santa Ana winds and very dry conditions are producing elevated to critical fire weather conditions in southern California. Isolated strong to severe thunderstorms are possible through early Wednesday morning across parts of northeast Texas into western Tennessee. Read More >
Winter Storm of February 28th-29th, 2012
"The Leap Year Storm"
| Snowfall Graphics | Snow Totals | Rain Totals |
A winter storm moved through the Upper Mississippi River Valley from Tuesday night (Feb 28th) into Wednesday afternoon (Feb 29th). Due to an abundance of warm air and moisture that was pushed northward ahead of the storm, a wide variety of precipitation fell. Here is a summary broken down by region:
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Central Minnesota - Northern half of Wisconsin (along and north of Highway 29):
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The NWS La Crosse forecast evolution |
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Southern Minnesota - Central Wisconsin (Interstate 90 region):
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Radar loop from 12 pm Tuesday (Feb 28) through 4 pm Wednesday (Feb 29) |
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Northern Iowa - Southwest Wisconsin: Nearly all the precipitation fell as rain (minimal impact)
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NWS Green Bay also posted a summary of this event - click here
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Media use of NWS Web News Stories is encouraged. Please acknowledge the NWS as the source of any news information accessed from this site.
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Regional snowfall analysis (Feb.28-29) |
Local snowfall analysis (Feb.28-29) |
Snow Totals
PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 410 PM CST WED FEB 29 2012 ...SNOWFALL TOTALS FROM AROUND THE AREA... LOCATION SNOWFALL TIME LAT/LON MINNESOTA ...WABASHA COUNTY... THEILMAN 0.7 0357 PM 44.30N 92.2W LAKE CITY 0.5 0357 PM 44.45N 92.28W WISCONSIN ...BUFFALO COUNTY... ALMA 2.0 0358 PM 44.33N 91.92W ...CLARK COUNTY... OWEN 2 N 10.3 0353 PM 44.98N 90.57W COLBY 4SW 6.0 0355 PM 44.87N 90.42W ROCK DAM LAKE 4.0 0354 PM 44.73N 90.84W NEILLSVILLE 4 NNE 3.0 0356 PM 44.61N 90.56W ...TAYLOR COUNTY... MEDFORD 17.0 0352 PM 45.14N 90.35W JUMP RIVER 1 NW 15.0 0351 PM 45.37N 90.82W MEDFORD 4 NW 14.7 0355 PM 45.18N 90.41W ...TREMPEALEAU COUNTY... OSSEO 2.1 0354 PM 44.58N 91.22W BLAIR 2 NW 1.0 0358 PM 44.32N 91.26W OBSERVATIONS ARE COLLECTED FROM A VARIETY OF SOURCES WITH VARYING EQUIPMENT AND EXPOSURE. NOT ALL DATA LISTED IS CONSIDERED OFFICIAL. $$
Rain Totals
PUBLIC INFORMATION STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 445 PM CST WED FEB 29 2012 ...RAINFALL TOTALS ACROSS THE AREA... LOCATION RAINFALL TIME LAT/LON IOWA ...ALLAMAKEE COUNTY... DORCHESTER HIGHWAY 76 0.78 0700 AM 43.42N 91.51W LANSING 4SE 0.72 0700 AM 43.32N 91.16W WAUKON 0.68 0700 AM 43.27N 91.47W ION 0.56 0700 AM 43.11N 91.27W ...CHICKASAW COUNTY... NEW HAMPTON 0.49 0700 AM 43.06N 92.31W IONIA 0.49 0700 AM 43.03N 92.50W ...CLAYTON COUNTY... ELKADER 6SSW 0.65 0700 AM 42.79N 91.45W VOLGA 0.58 0700 AM 42.81N 91.52W ELKADER 0.54 0700 AM 42.84N 91.40W STRAWBERRY POINT 0.50 0700 AM 42.69N 91.53W LITTLEPORT 0.50 0700 AM 42.75N 91.37W GUTTENBERG 0.46 0700 AM 42.79N 91.10W MARQUETTE 0.36 0700 AM 43.04N 91.21W GARBER 0.29 0700 AM 42.74N 91.26W ...FAYETTE COUNTY... CLERMONT 0.74 0700 AM 43.00N 91.66W ELDORADO 0.57 0700 AM 43.05N 91.81W FAYETTE 0.51 0700 AM 42.85N 91.82W OELWEIN 1E 0.20 0700 AM 42.68N 91.88W ...FLOYD COUNTY... CHARLES CITY COOP 0.82 0700 AM 43.08N 92.67W CHARLES CITY AWOS 0.63 0700 AM 43.07N 92.61W CHARLES CITY CEDAR RVR 0.62 0700 AM 43.06N 92.67W NASHUA 0.30 0700 AM 42.94N 92.57W ...HOWARD COUNTY... ELMA 0.60 0700 AM 43.24N 92.44W ...MITCHELL COUNTY... ST ANSGAR 1.15 0700 AM 43.37N 92.83W OSAGE 1.10 0700 AM 43.28N 92.81W ...WINNESHIEK COUNTY... DECORAH 0.77 0700 AM 43.30N 91.80W BLUFFTON 0.70 0700 AM 43.41N 91.90W CALMAR 0.67 0700 AM 43.18N 91.87W WAUCOMA 0.62 0700 AM 43.05N 92.04W DECORAH AWOS 0.56 0700 AM 43.28N 91.74W MINNESOTA ...DODGE COUNTY... DODGE CENTER 1.52 0700 AM 44.04N 92.88W ...FILLMORE COUNTY... CARIMONA 1.33 0700 AM 43.66N 92.15W SPRING VALLEY 3E 1.17 0700 AM 43.68N 92.33W PILOT MOUND 1.14 0700 AM 43.78N 92.03W LANESBORO 1.12 0700 AM 43.72N 91.97W SPRING VALLEY 1.05 0700 AM 43.69N 92.39W HIGHLAND 1.04 0700 AM 43.65N 91.84W PRESTON 1.02 0700 AM 43.67N 92.07W HARMONY 0.96 0700 AM 43.55N 92.01W SPRING VALLEY 1 NW 0.95 0700 AM 43.70N 92.40W PRESTON AWOS 0.88 0700 AM 43.68N 92.18W ...HOUSTON COUNTY... MOUND PRAIRIE 1.25 0700 AM 43.78N 91.45W HOUSTON 1.00 0700 AM 43.77N 91.57W SPRING GROVE 4N 0.91 0700 AM 43.61N 91.62W BROWNSVILLE 0.53 0700 AM 43.70N 91.27W ...MOWER COUNTY... LANSING 1.63 0700 AM 43.75N 92.95W AUSTIN 1.63 0700 AM 43.67N 92.95W AUSTIN 3S 1.48 0700 AM 43.62N 93.00W GRAND MEADOW 1.05 0700 AM 43.71N 92.56W ...OLMSTED COUNTY... ROCHESTER - CASCADE CREEK 1.68 0700 AM 44.03N 92.48W ELGIN 1.48 0700 AM 44.10N 92.27W ROCHESTER - SILVER CREEK 1.47 0700 AM 44.03N 92.42W ELBA 1.30 0700 AM 44.05N 92.05W ROCHESTER BELTLINE 1.21 0700 AM 43.91N 92.50W ROCHESTER - BEAR CREEK 1.20 0700 AM 43.92N 92.48W ROCHESTER AP 2NE 1.10 0700 AM 43.93N 92.48W POST TOWN 0.68 0700 AM 44.09N 92.82W DOVER 0.53 0700 AM 44.01N 92.11W ...WABASHA COUNTY... LAKE CITY 1.68 0700 AM 44.43N 92.28W KELLOGG 1.67 0700 AM 44.32N 92.00W THEILMAN 1.57 0700 AM 44.28N 92.19W LAKE CITY 1.39 0700 AM 44.45N 92.26W ...WINONA COUNTY... ALTURA 5W 1.54 0700 AM 44.06N 92.04W MINNESOTA CITY 1.40 0700 AM 44.16N 91.81W LA CRESCENT DAM 7 1.35 0700 AM 43.87N 91.31W WINONA 1.13 0700 AM 44.09N 91.67W ALTURA 0.95 0700 AM 44.15N 92.01W DAKOTA 0.80 0700 AM 43.92N 91.37W WISCONSIN ...ADAMS COUNTY... FRIENDSHIP 0.74 0700 AM 43.98N 89.83W ...BUFFALO COUNTY... ALMA DAM 4 1.36 0700 AM 44.33N 91.92W ...CLARK COUNTY... OWEN 1.86 0700 AM 44.98N 90.55W NEILLSVILLE 3SW 1.44 0700 AM 44.53N 90.64W ...CRAWFORD COUNTY... STEUBEN 4SE 0.89 0700 AM 43.13N 90.84W LYNXVILLE DAM 9 0.82 0700 AM 43.21N 91.10W SOLDIERS GROVE 0.68 0700 AM 43.39N 90.78W PRAIRIE DU CHIEN 0.54 0700 AM 43.05N 91.13W ...GRANT COUNTY... BOSCOBEL RAWS 0.52 0700 AM 43.15N 90.68W SINSINAWA 0.51 0700 AM 42.52N 90.54W BOSCOBEL ASOS 0.49 0700 AM 43.16N 90.68W CUBA CITY 0.48 0700 AM 42.63N 90.46W LANCASTER 4WSW 0.44 0700 AM 42.83N 90.79W PLATTEVILLE AWOS 0.15 0700 AM 42.69N 90.44W ...JACKSON COUNTY... BLACK RIVER FALLS STP 1.45 0700 AM 44.29N 90.85W BLACK RIVER FALLS RAWS 1.25 0700 AM 44.30N 90.84W MATHER 3NW 1.05 0700 AM 44.17N 90.35W HATFIELD HYDRO PLANT 1.00 0700 AM 44.39N 90.76W ...JUNEAU COUNTY... NECEDAH 0.91 0700 AM 44.00N 90.04W NECEDAH 1W 0.73 0700 AM 44.02N 90.08W NECEDAH 5WNW 0.70 0700 AM 44.06N 90.17W ...LA CROSSE COUNTY... HOLMEN 2S 1.24 0700 AM 43.93N 91.25W WEST SALEM 1W 1.20 0700 AM 43.90N 91.09W LA CROSSE 1.19 0700 AM 43.80N 91.37W LA CROSSE 4NNW 1.18 0700 AM 43.87N 91.27W LA CROSSE ASOS 1.14 0700 AM 43.88N 91.26W LA CROSSE WEATHER 0.97 0700 AM 43.82N 91.19W ...MONROE COUNTY... SPARTA 1.12 0700 AM 43.94N 90.82W FOUR CORNERS 0.91 0700 AM 44.07N 90.92W WARRENS 0.84 0700 AM 44.10N 90.59W TUNNEL CITY 0.63 0700 AM 44.01N 90.57W ...RICHLAND COUNTY... RICHLAND CENTER 1NW 0.53 0700 AM 43.36N 90.42W RICHLAND CENTER 0.51 0700 AM 43.32N 90.38W ...TAYLOR COUNTY... MEDFORD 1.57 0700 AM 45.13N 90.34W ...TREMPEALEAU COUNTY... OSSEO 1.38 0700 AM 44.58N 91.22W GALESVILLE 3ENE 1.17 0700 AM 44.09N 91.29W BLAIR 2NW 1.15 0700 AM 44.31N 91.27W TREMPEALEAU DAM 6 1.10 0700 AM 44.00N 91.44W GALESVILLE 2WSW 1.09 0700 AM 44.07N 91.39W ...VERNON COUNTY... READSTOWN 0.88 0700 AM 43.45N 90.76W ONTARIO 3E 0.84 0700 AM 43.72N 90.60W LA FARGE 0.81 0700 AM 43.57N 90.64W GENOA 0.71 0700 AM 43.57N 91.23W VIROQUA 0.70 0700 AM 43.55N 90.90W READSTOWN 4NE 0.70 0700 AM 43.48N 90.69W WESTBY 3ENE 0.70 0700 AM 43.68N 90.81W OBSERVATIONS ARE COLLECTED FROM A VARIETY OF SOURCES WITH VARYING EQUIPMENT AND EXPOSURE. NOT ALL DATA LISTED IS CONSIDERED OFFICIAL. $$
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