February 19-20, 2018 Ice and Snow Summary

Overview

Waves of low pressure brought several periods of mixed precipitation to north-central and northeast Monday (February 19, 2018) into Tuesday morning (February 20, 2018). On Monday, arctic air moved into northern Wisconsin where temperatures fell into the teens and 20s north and west of the Fox Valley. Meanwhile, spring like warmth was flowing north towards Wisconsin where Chicago warmed to 60 degrees. Warm air flowing north over the cold air mass near the ground brought a mix of freezing rain, sleet, and snow Monday into Monday evening to areas north and west of the Fox Valley. This wintry mix changed over to light freezing rain or freezing drizzle Monday night into Tuesday morning.

Temperatures from Wautoma to the Fox Valley, east to Kewaunee and Manitowoc, were well above freezing through early afternoon on Monday. The arctic front then surged south across east-central Wisconsin late in the afternoon. Temperatures in this region fell 5 to 10 degrees in a few hours, resulting in the rain changing to freezing rain and freezing drizzle (with some sleet at times). Untreated roads, bridges, and sidewalks quickly became ice covered and slippery around sunset. Another round of heavier freezing rain moved across the entire area early Tuesday morning.

Snowfall amounts of 1 to 3 inches were noted across far north-central Wisconsin. Most of central and northeast Wisconsin saw a tenth to a quarter inch of ice. The exception was near Lake Michigan in Manitowoc County where little or no icing was noted. Despite the icy conditions, there were just a few reports of tree damage or power outages.

See the tabs below for more information.

Ice / Snowfall Reports
Radar
Wind Reports

Ice / Snowfall Reports

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE GREEN BAY WI
1238 PM CST TUE FEB 20 2018

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

0830 AM     SNOW             REST LAKE               46.12N 89.88W
02/20/2018  M3.0 INCH        VILAS              WI   CO-OP OBSERVER   

            CO-OP OBSERVER STATION RLKW3, REST LAKE. 

0700 AM     SNOW             LAND O LAKES 3 W        46.17N 89.30W
02/20/2018  M2.4 INCH        VILAS              WI   COCORAHS         

            COCORAHS STATION WI-VL-10, LAND O LAKES 3 W. 

0730 AM     SNOW             BOULDER JUNCTION 9 ENE  46.19N 89.46W
02/20/2018  M2.3 INCH        VILAS              WI   COCORAHS         

            COCORAHS STATION WI-VL-9, BOULDER JUNCTION 9 ENE. 

0700 AM     SNOW             ALVIN 3 NW              46.03N 88.84W
02/20/2018  M2.0 INCH        FOREST             WI   CO-OP OBSERVER   

            CO-OP OBSERVER STATION ALVW3, ALVIN 3 NW. 

0700 AM     SNOW             PHELPS                  46.07N 89.08W
02/20/2018  M1.1 INCH        VILAS              WI   CO-OP OBSERVER   

            CO-OP OBSERVER STATION PHEW3, PHELPS. 

0700 AM     SNOW             FLORENCE                45.93N 88.26W
02/20/2018  M1.1 INCH        FLORENCE           WI   CO-OP OBSERVER   

            CO-OP OBSERVER STATION FLNW3, FLORENCE. 

0700 AM     SNOW             AURORA 4 W              45.79N 88.18W
02/20/2018  M1.0 INCH        FLORENCE           WI   CO-OP OBSERVER   

            CO-OP OBSERVER STATION ARRW3, AURORA 4 W. 

0530 AM     SNOW             COMMONWEALTH            45.92N 88.24W
02/20/2018  M1.0 INCH        FLORENCE           WI   COCORAHS         

            COCORAHS STATION WI-FL-3, COMMONWEALTH. 

0600 AM     SNOW             ST GERMAIN              45.92N 89.49W
02/20/2018  M1.0 INCH        VILAS              WI   CO-OP OBSERVER   

            CO-OP OBSERVER STATION STGW3, ST GERMAIN. 

0700 AM     SNOW             SPREAD EAGLE 1 NW       45.89N 88.14W
02/20/2018  M1.0 INCH        FLORENCE           WI   COCORAHS         

            COCORAHS STATION WI-FL-4, SPREAD EAGLE 1 NW. 

0659 AM     SNOW             EAGLE RIVER - SOUTH     45.91N 89.24W
02/20/2018  M1.0 INCH        VILAS              WI   CO-OP OBSERVER   

            CO-OP OBSERVER STATION EGRW3, EAGLE RIVER - SOUTH. 

0820 AM     SNOW             LAC VIEUX DESERT        46.12N 89.08W
02/20/2018  M1.0 INCH        VILAS              WI   CO-OP OBSERVER   

            CO-OP OBSERVER STATION LVDW3, LAC VIEUX DESERT. 

0945 PM     SNOW             7 W MERRILL             45.18N 89.82W
02/19/2018  M0.4 INCH        LINCOLN            WI   COCORAHS         

            SNOWFALL OVER THE PAST 13 HOURS. CRUST ON TOP OF NEW 
            SNOW 0.1 INCH. 

0830 AM     FREEZING RAIN    ASHWAUBENON             44.46N 88.08W
02/20/2018  M0.20 INCH       BROWN              WI   OFFICIAL NWS OBS 

            STORM TOTAL ICE ACCUMULATION. 

0615 AM     FREEZING RAIN    1 SSE SHAWANO           44.76N 88.58W
02/20/2018  M0.18 INCH       SHAWANO            WI   PUBLIC           

1045 AM     FREEZING RAIN    OSHKOSH                 44.01N 88.55W
02/20/2018  E0.15 INCH       WINNEBAGO          WI   PUBLIC           

            REPORT FROM SOCIAL MEDIA. 

0830 AM     FREEZING RAIN    OCONTO                  44.88N 87.88W
02/20/2018  E0.15 INCH       OCONTO             WI   PUBLIC           

            REPORT FROM SOCIAL MEDIA. 

0606 PM     FREEZING RAIN    REDGRANITE              44.03N 89.09W
02/19/2018  E0.13 INCH       WAUSHARA           WI   PUBLIC           

            1/8 INCH OF ICE ACCUMULATION. REPORT VIA SOCIAL MEDIA. 

0913 PM     FREEZING RAIN    OSHKOSH                 44.01N 88.55W
02/19/2018  M0.13 INCH       WINNEBAGO          WI   PUBLIC           

            1/8 INCH OF ICE ACCUMULATION. REPORT VIA 
            SOCIAL MEDIA. 

0830 AM     FREEZING RAIN    THREE LAKES             45.79N 89.16W
02/20/2018  M0.12 INCH       ONEIDA             WI   TRAINED SPOTTER  

            0.9 INCHES OF SNOW ALSO REPORTED. 

0830 AM     FREEZING RAIN    OMRO                    44.03N 88.75W
02/20/2018  E0.12 INCH       WINNEBAGO          WI   CO-OP OBSERVER   

0750 AM     FREEZING RAIN    NEKOOSA                 44.31N 89.88W
02/20/2018  M0.10 INCH       WOOD               WI   PUBLIC           

            MEASURED ON A TREE BRANCH. 

1000 AM     FREEZING RAIN    WAUTOMA                 44.06N 89.28W
02/20/2018  M0.10 INCH       WAUSHARA           WI   AMATEUR RADIO    

0830 AM     FREEZING RAIN    AMHERST                 44.45N 89.28W
02/20/2018  E0.10 INCH       PORTAGE            WI   CO-OP OBSERVER   

0725 AM     FREEZING RAIN    5 ESE MENASHA           44.17N 88.35W
02/20/2018  M0.10 INCH       CALUMET            WI   PUBLIC           

            0.10 INCH OF ICE ACCRETION ON A BRANCH. 0.41 
            INCHES OF RAIN. 

0830 AM     FREEZING RAIN    WISCONSIN RAPIDS        44.40N 89.84W
02/20/2018  E0.10 INCH       WOOD               WI   CO-OP OBSERVER   

0640 AM     FREEZING RAIN    1 NW SPREAD EAGLE       45.89N 88.14W
02/20/2018  M0.10 INCH       FLORENCE           WI   TRAINED SPOTTER  

            ONE INCH OF SNOW ALSO REPORTED. 

0830 AM     FREEZING RAIN    ALMOND                  44.26N 89.40W
02/20/2018  M0.10 INCH       PORTAGE            WI   CO-OP OBSERVER   

0640 AM     FREEZING RAIN    CHILTON                 44.03N 88.16W
02/20/2018  M0.06 INCH       CALUMET            WI   EMERGENCY MNGR   

            AROUND 1/16 INCH OF ICE. 

0600 PM     FREEZING RAIN    ASHWAUBENON             44.46N 88.08W
02/19/2018  M0.06 INCH       BROWN              WI   OFFICIAL NWS OBS 

            AROUND 1/16 INCH OF ICE ACCUMULATION. 

0830 AM     FREEZING RAIN    APPLETON                44.26N 88.40W
02/20/2018  E0.05 INCH       OUTAGAMIE          WI   CO-OP OBSERVER   

0830 AM     FREEZING RAIN    OSHKOSH                 44.01N 88.55W
02/20/2018  E0.02 INCH       WINNEBAGO          WI   CO-OP OBSERVER

Radar:

Here is a look at the radar loop from 9am Monday, February 19 through 12pm Tuesday, February 20. Note: the radar overshoots some of the snow and freezing drizzle across portions of Wisconsin.

Wind Reports:

...Peak Wind Reports Past 24 Hours...

Location                     Speed     Time/Date       Lat/Lon              

Green Bay Airport            44 MPH    0258 PM 02/19   44.50N/88.11W        
Port Edwards 2 WNW           44 MPH    0549 PM 02/19   44.35N/89.88W        
Plover 1 WSW                 32 MPH    0321 PM 02/19   44.44N/89.55W        
Appleton Airport             31 MPH    0245 PM 02/19   44.26N/88.52W        
Kewaunee                     30 MPH    0112 PM 02/19   44.47N/87.50W        
Combined Locks 1 W           30 MPH    0240 PM 02/19   44.24N/88.34W        
Coloma 4 W                   28 MPH    0428 PM 02/19   44.02N/89.60W        
Manitowoc Airport            28 MPH    1244 PM 02/19   44.13N/87.68W        
Wisconsin Rapids Airport     28 MPH    0254 PM 02/19   44.36N/89.84W        
Marshfield Airport           28 MPH    0254 PM 02/19   44.64N/90.19W        
Pittsville                   26 MPH    0322 PM 02/19   44.45N/90.13W        
Stevens Point Airport        26 MPH    0535 PM 02/19   44.55N/89.53W        
Oshkosh Airport              26 MPH    0153 PM 02/19   43.98N/88.56W        
Wautoma Airport              26 MPH    0456 PM 02/19   44.04N/89.30W        
Rhinelander Airport          25 MPH    0353 PM 02/19   45.63N/89.47W        
Howard 2 WNW                 25 MPH    0113 PM 02/19   44.58N/88.09W        
Washington Island 1 WNW      25 MPH    0135 PM 02/19   45.39N/86.92W        


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.

Media use of NWS Web News Stories is encouraged!
Please acknowledge the NWS as the source of any news information accessed from this site.