Combination of strong winds, dry conditions and above normal temperatures will result in elevated to critical fire weather concerns for the Southern Plains and portions of Southern California. This is part of a storm system that is tracking across the central Plains with occasional snow showers and heavier snow from the Rockies through the Central/Northern Plains. Read More >
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Overview A prolonged period of freezing drizzle and/or freezing rain produced icing in most areas on February 19th and 20th. Conditions were worst in southeast Minnesota where some areas received 1/4 to 1/2 inch of ice, sleet, and even some snow. Main roads were just wet but less traveled roads, parking lots, and sidewalks were covered in a layer of ice. The ice led to numerous accidents and difficult travel. Most area schools were closed on Tuesday, February 20th. The National Weather Service had a long period of Winter Weather Advisories in effect. In addition, rainfall of 0.50 to 1.00" led to ponding of water and even some river flooding, especially in southwest Wisconsin, where the Grant and Platte Rivers rose above flood stage for a time. |
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Flooding
Rainfall of 0.50" to 1.00" on top of frozen ground led to rises on several rivers and creeks in eastern Iowa and southern Wisconsin.
Hydrographs
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| Grant River at Burton, WI | Platte River at Rockville, WI |
Service
YouTube briefing videos:
Photos
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| Ice accumulation in Arcadia, WI (Photo by Lynda Reyes) |
Ice at NWS La Crosse (Photo by NWS La Crosse) |
Ice at NWS La Crosse (Photo by NWS La Crosse) |
Near Root River County Park - Olmsted Co., MN (Photo by Matt Benz/KTTC) |
| Monday Radar Loop | |||
| Monday Night-Tuesday Radar Loop | |||
Ice & Glaze Reports
LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE LA CROSSE WI
1014 PM CST MON FEB 19 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0754 PM FREEZING RAIN ROCHESTER AIRPORT 43.90N 92.49W
02/19/2018 M0.43 INCH OLMSTED MN ASOS
MEASURED BY KRST ICE ACCUMULATION SENSOR.
0520 PM FREEZING RAIN OSSEO 44.58N 91.22W
02/19/2018 M0.25 INCH TREMPEALEAU WI CO-OP OBSERVER
UP TO 1/4" INCH OF ACCUMULATION.
0545 PM FREEZING RAIN AUSTIN 43.67N 92.97W
02/19/2018 E0.25 INCH MOWER MN LAW ENFORCEMENT
ESTIMATED 1/4" OF ICE ACCUMULATION ON COUNTY
ROADS THROUGHOUT MUCH OF THE COUNTY.
0558 PM FREEZING RAIN 5 NE MONTANA 44.40N 91.60W
02/19/2018 E0.20 INCH BUFFALO WI TRAINED SPOTTER
0815 AM FREEZING RAIN AUSTIN
02/20/2018 M0.20 INCH MOWER WI BROADCAST MEDIA
0500 PM FREEZING RAIN MANTORVILLE 44.07N 92.75W
02/19/2018 E0.20 INCH DODGE MN LAW ENFORCEMENT
0812 AM FREEZING RAIN RIPLINGER 7SSE
02/20/2018 E0.20 INCH CLARK WI TRAINED SPOTTER
0505 PM FREEZING RAIN 1 SW LAKE CITY 44.44N 92.28W
02/19/2018 E0.20 INCH WABASHA MN CO-OP OBSERVER
0930 AM FREEZING RAIN 5 ENE STODDARD
02/20/2018 M0.15 INCH VERNON WI NWS EMPLOYEE
0227 PM FREEZING RAIN 3 ESE DOUGLAS 44.09N 92.51W
02/19/2018 M0.13 INCH OLMSTED MN BROADCAST MEDIA
1/8 INCH OF ICE ACCUMULATION.
0600 PM FREEZING RAIN 4 WSW AUSTIN 43.64N 93.05W
02/19/2018 M0.13 INCH MOWER MN PUBLIC
1/8 INCH OF ICE ACCUMULATION ON TWIGS.
0420 PM FREEZING RAIN 3 SE EYOTA 43.96N 92.19W
02/19/2018 U0.13 INCH OLMSTED MN DEPT OF HIGHWAYS
MULTIPLE SPIN-OFFS AND JACKKNIFED SEMIS
ALONG I-90 IN EASTERN OLMSTED COUNTY. 1/10
TO 1/8 OF AN INCH OF ICING REPORTED IN
ROCHESTER AROUND THIS TIME.
0635 PM FREEZING RAIN 1 SSW ROCHESTER 44.00N 92.48W
02/19/2018 M0.13 INCH OLMSTED MN BROADCAST MEDIA
1/8 OF AN INCH OF ICE ACCUMULATION.
0505 PM FREEZING RAIN MONDOVI 44.56N 91.67W
02/19/2018 M0.10 INCH BUFFALO WI CO-OP OBSERVER
0930 AM FREEZING RAIN 3.1 NW WYKOFF
02/20/2018 M0.10 INCH FILLMORE MN TRAINED SPOTTER
0800 AM FREEZING RAIN ROCHESTER 1SW
02/20/2018 M0.10 INCH OLMSTED MN TRAINED SPOTTER
0522 PM FREEZING RAIN 1 NNW ROCHESTER 44.02N 92.48W
02/19/2018 E0.10 INCH OLMSTED MN PUBLIC
REPORT VIA SOCIAL MEDIA.
0141 PM FREEZING RAIN ROCHESTER 44.01N 92.48W
02/19/2018 M0.10 INCH OLMSTED MN BROADCAST MEDIA
1/10 TO 1/8 INCH ICE ACCUMULATION AT THE ABC
TV STATION IN ROCHESTER.
0700 AM FREEZING RAIN 2 NW FAYETTE
02/20/2018 M0.10 INCH FAYETTE IA AMATEUR RADIO
0700 AM FREEZING RAIN 10 NW OELWEIN
02/20/2018 M0.10 INCH FAYETTE IA BROADCAST MEDIA
0700 AM FREEZING RAIN NEW HAMPTON
02/20/2018 M0.10 INCH CHICKASAW IA COOP OBSERVER
0836 PM FREEZING RAIN BLACK RIVER FALLS 44.29N 90.85W
02/19/2018 E0.10 INCH JACKSON WI LAW ENFORCEMENT
GLAZING OF ICE OBSERVED ON TREES AND ROADS.
A FEW SLIDE-INS REPORTED.
0454 PM FREEZING RAIN 7 SSE RIPLINGER 44.74N 90.32W
02/19/2018 M0.06 INCH CLARK WI PUBLIC
1/16 OF AN INCH OF ICE ACCUMULATION.
Rain / Freezing Rain Reports
Public Information Statement National Weather Service La Crosse WI 902 AM CST Tue Feb 20 2018 ...24 Hour Rainfall Reports... Location Amount Time/Date Lat/Lon IOWA LOCATIONS ...Allamakee County... 3 S Dorchester 0.34 in 0800 AM 02/20 43.42N/91.51W Waukon 4SW 0.33 in 0650 AM 02/20 43.24N/91.55W ...Chickasaw County... New Hampton 0.65 in 0700 AM 02/20 43.06N/92.31W ...Clayton County... McGregor 0.56 in 0729 AM 02/20 43.02N/91.19W Edgewood 0.54 in 0600 AM 02/20 42.65N/91.40W Monona WWTP 0.54 in 0700 AM 02/20 43.04N/91.40W Volga 1NE 0.50 in 0600 AM 02/20 42.81N/91.52W Elkader 5NW 0.50 in 0700 AM 02/20 42.91N/91.47W Monona 0.48 in 0729 AM 02/20 43.04N/91.39W Elkader 6SSW 0.46 in 0700 AM 02/20 42.78N/91.45W Guttenberg Dam 10 0.44 in 0600 AM 02/20 42.78N/91.10W Garber 0.42 in 0715 AM 02/20 42.74N/91.26W Littleport 0.40 in 0645 AM 02/20 42.75N/91.37W Marquette-Bloody Run Creek 0.27 in 0700 AM 02/20 43.04N/91.21W ...Fayette County... 1 ENE Alpha 0.52 in 0700 AM 02/20 43.01N/92.03W Fayette 0.48 in 0700 AM 02/20 42.85N/91.82W 4 SSE Arlington 0.48 in 0729 AM 02/20 42.69N/91.65W Fayette-CWOP 0.45 in 0730 AM 02/20 42.84N/91.80W Eldorado 0.36 in 0645 AM 02/20 43.05N/91.81W Oelwein Municipal Airport 0.26 in 0555 AM 02/20 42.68N/91.97W ...Floyd County... Nashua 2SW 0.41 in 0700 AM 02/20 42.94N/92.57W Nora Springs 2.4 SSE 0.31 in 0700 AM 02/20 43.11N/92.99W Charles City 0.28 in 0700 AM 02/20 43.06N/92.67W Charles City Airport 0.24 in 0555 AM 02/20 43.07N/92.61W Charles City-Cedar River 0.15 in 0730 AM 02/20 43.06N/92.67W ...Howard County... Cresco 1NE 0.22 in 0750 AM 02/20 43.39N/92.09W ...Mitchell County... St Ansgar 0.30 in 0630 AM 02/20 43.38N/92.92W Osage 0.27 in 0700 AM 02/20 43.28N/92.81W ...Winneshiek County... 5 ESE Decorah 0.55 in 0700 AM 02/20 43.26N/91.70W Decorah 0.52 in 0730 AM 02/20 43.30N/91.79W Ossian 0.48 in 0729 AM 02/20 43.14N/91.76W 1 ENE Jackson Junction 0.44 in 0730 AM 02/20 43.11N/92.04W Decorah Municipal Airport 0.39 in 0555 AM 02/20 43.28N/91.74W Bluffton 0.22 in 0645 AM 02/20 43.41N/91.90W MINNESOTA LOCATIONS ...Dodge County... 2 NE Kasson 0.22 in 0700 AM 02/20 44.05N/92.72W ...Fillmore County... Mabel 0.22 in 0720 AM 02/20 43.52N/91.76W ...Houston County... Caledonia 0.30 in 0700 AM 02/20 43.63N/91.50W ...Olmsted County... 2 NE Rochester 0.29 in 0600 AM 02/20 44.04N/92.44W Byron 4N 0.23 in 0700 AM 02/20 44.09N/92.64W Elgin 2SSW 0.21 in 0700 AM 02/20 44.10N/92.27W Rochester International Airp 0.21 in 0554 AM 02/20 43.91N/92.50W Rochester Ap 2ne 0.16 in 0700 AM 02/20 43.93N/92.48W 2 NE Rochester 0.10 in 0838 AM 02/20 44.04N/92.44W 2 NE Rochester 0.10 in 0724 AM 02/20 44.04N/92.44W ...Winona County... La Crescent Dam 7 0.26 in 0600 AM 02/20 43.87N/91.31W Minnesota City Dam 5 0.20 in 0700 AM 02/20 44.16N/91.81W Winona Dam 5A 0.16 in 0600 AM 02/20 44.09N/91.67W WISCONSIN LOCATIONS ...Adams County... Castle Rock 0.38 in 0700 AM 02/20 43.87N/89.95W Friendship 0.31 in 0700 AM 02/20 43.98N/89.83W 1 SSW Grand Marsh 0.27 in 0700 AM 02/20 43.86N/89.72W Friendship 0.16 in 0719 AM 02/20 43.97N/89.82W ...Clark County... Owen 6SSE 0.20 in 0700 AM 02/20 44.87N/90.51W ...Crawford County... Steuben 0.52 in 0645 AM 02/20 43.18N/90.86W Prairie Du Chien Airport 0.50 in 0555 AM 02/20 43.02N/91.12W Prairie Du Chien 0.48 in 0700 AM 02/20 43.05N/91.13W De Soto 1SE 0.40 in 0600 AM 02/20 43.42N/91.19W Steuben 4SE 0.38 in 0700 AM 02/20 43.13N/90.84W De Soto 0.32 in 0736 AM 02/20 43.42N/91.19W 1 SW Mount Sterling 0.27 in 0706 AM 02/20 43.31N/90.94W ...Grant County... Sinsinawa 1.20 in 1100 AM 02/20 Cuba City 0.98 in 0800 AM 02/20 42.60N/90.43W Fennimore 0.60 in 0830 AM 02/20 42.98N/90.66W Platteville Municipal Airpor 0.48 in 0555 AM 02/20 42.69N/90.44W Lancaster 4wsw 0.39 in 0800 AM 02/20 42.83N/90.79W 1 ENE Boscobel 0.39 in 0803 AM 02/20 43.15N/90.68W Boscobel Airport 0.38 in 0553 AM 02/20 43.16N/90.67W ...Jackson County... 1 E Black River Falls 0.10 in 0715 AM 02/20 44.30N/90.83W Black River Falls Area Airpo 0.06 in 0555 AM 02/20 44.25N/90.86W Hatfield Dam 0.05 in 0800 AM 02/20 44.41N/90.73W ...Juneau County... Union Center 0.41 in 0700 AM 02/20 43.68N/90.26W Mauston 0.36 in 0737 AM 02/20 43.80N/90.07W 2 N Cloverdale 0.23 in 0810 AM 02/20 44.06N/90.17W Volk Field 0.22 in 0556 AM 02/20 43.94N/90.25W Necedah 0.22 in 0648 AM 02/20 44.03N/90.08W Mauston Airport 0.20 in 0555 AM 02/20 43.84N/90.14W ...La Crosse County... La Crosse Weather Office 0.27 in 0600 AM 02/20 43.82N/91.19W West Salem 0.27 in 0700 AM 02/20 43.90N/91.09W La Crosse 4NNW 0.23 in 0730 AM 02/20 43.87N/91.27W La Crosse Regional Airport 0.19 in 0553 AM 02/20 43.88N/91.26W Holmen 2S 0.18 in 0630 AM 02/20 ...Monroe County... Four Corners 0.31 in 0700 AM 02/20 44.09N/90.91W Cashton 3NNW 0.26 in 0730 AM 02/20 43.79N/90.80W Sparta/Fort McCoy Airport 0.13 in 0555 AM 02/20 43.96N/90.74W 2 E Cataract 0.02 in 0738 AM 02/20 44.09N/90.79W ...Richland County... 1 SSE Richland Center 0.52 in 0729 AM 02/20 43.32N/90.38W Richland Center 4N 0.31 in 0700 AM 02/20 43.40N/90.39W ...Taylor County... Medford 0.20 in 0800 AM 02/20 45.13N/90.34W ...Trempealeau County... Ettrick 4WNW 0.24 in 0813 AM 02/20 44.19N/91.34W Trempealeau Dam 6 0.16 in 0600 AM 02/20 44.00N/91.44W Osseo 0.12 in 0700 AM 02/20 44.58N/91.22W ...Vernon County... Hillsboro 0.40 in 1216 PM 02/20 Readstown 0.37 in 0800 AM 02/20 43.45N/90.76W 3 WNW Viola 0.35 in 0800 AM 02/20 43.53N/90.74W Viroqua 0.35 in 0700 AM 02/20 43.56N/90.88W La Farge 0.33 in 0700 AM 02/20 43.57N/90.64W Hillsboro 2SW 0.33 in 0700 AM 02/20 43.63N/90.38W Viroqua 0.8 ESE 0.30 in 0700 AM 02/20 43.55N/90.87W Genoa Dam 8 0.29 in 0600 AM 02/20 43.57N/91.23W Stoddard 0.28 in 0700 AM 02/20 43.66N/91.22W Viroqua Municipal Airport 0.23 in 0555 AM 02/20 43.58N/90.90W Observations are collected from a variety of sources with varying equipment and exposures. We thank all volunteer weather observers for their dedication. Not all data listed are considered official.
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