Event Summary: February 11th, 2018

Overview
Snow fell over much of eastern Iowa, northwest Illinois, and northeast Missouri late Saturday and into Sunday morning, as an upper level storm system tracked east over the Great Plains. Snow covered roads and reduced visibilities were seen as the snow fell between 9 pm Saturday and 9 am Sunday. Snowfall totals between 1 and 3 inches were common, with a few locally higher amounts around 4 inches. The highest totals fell east of the Mississippi river in Knox, Henry, Bureau, and Putnam counties.
National Weather Service Official Observations (event totals):
Moline-Quad City International Airport: 2.3"
Davenport Municipal Airport (NWS Office): 3.0"
Dubuque Regional Airport: 1.1"
Surface Map
Radar
Storm Reports
Environment
Radar:
Interactive Radar Loop Link
Storm Reports:

Interactive Map Link	Iowa Snow Analysis Courtesy Iowa Environmental Mesonet	Local Snowfall

Regional Snowfall	Midwest Snowfall
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
1027 AM CST SUN FEB 11 2018

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

0700 AM     SNOW             PRINCETON               41.38N 89.48W
02/11/2018  M4.5 INCH        BUREAU             IL   CO-OP OBSERVER   

            CO-OP OBSERVER STATION PTNI2, PRINCETON. 

0958 AM     SNOW             3 SSW BURLINGTON        40.77N 91.14W
02/11/2018  M4.0 INCH        DES MOINES         IA   TRAINED SPOTTER  

            OVERNIGHT TOTAL. 

0958 AM     SNOW             1 E CLINTON             41.84N 90.22W
02/11/2018  M4.0 INCH        CLINTON            IA   TRAINED SPOTTER  

            OVERNIGHT TOTAL. 

0958 AM     SNOW             4 ENE FREEPORT          42.32N 89.57W
02/11/2018  M4.0 INCH        STEPHENSON         IL   TRAINED SPOTTER  

            OVERNIGHT TOTAL. 

0645 AM     SNOW             1 W PORT BYRON          41.62N 90.35W
02/11/2018  M3.9 INCH        SCOTT              IA   COCORAHS         

            COCORAHS STATION IA-ST-1, 1 W PORT BYRON. 

0821 AM     SNOW             1 SSW KEWANEE           41.23N 89.93W
02/11/2018  E3.8 INCH        HENRY              IL   TRAINED SPOTTER  

             

0958 AM     SNOW             1 NNE FREEPORT          42.30N 89.62W
02/11/2018  E3.8 INCH        STEPHENSON         IL   TRAINED SPOTTER  

            OVERNIGHT TOTAL. 

0600 AM     SNOW             ILLINOIS CITY L/D 16    41.42N 91.02W
02/11/2018  M3.6 INCH        ROCK ISLAND        IL   CO-OP OBSERVER   

            CO-OP OBSERVER STATION ILNI2, ILLINOIS CITY 
            L/D 16. 

0700 AM     SNOW             2 N TISKILWA            41.32N 89.50W
02/11/2018  M3.5 INCH        BUREAU             IL   COCORAHS         

            COCORAHS STATION IL-BU-8, 2 N TISKILWA. 

0713 AM     SNOW             1 N GENESEO             41.46N 90.15W
02/11/2018  M3.5 INCH        HENRY              IL   TRAINED SPOTTER  

            SNOWFALL SINCE LAST EVENING. 

0820 AM     SNOW             SE GALVA                41.17N 90.04W
02/11/2018  M3.5 INCH        HENRY              IL   TRAINED SPOTTER  

             

0927 AM     SNOW             LE CLAIRE               41.60N 90.36W
02/11/2018  E3.5 INCH        SCOTT              IA   PUBLIC           

            OVERNIGHT SNOW TOTAL. 

0953 AM     SNOW             GARDEN PLAIN            41.80N 90.13W
02/11/2018  E3.5 INCH        WHITESIDE          IL   PUBLIC           

            OVERNIGHT SNOW TOTAL. 

0955 AM     SNOW             FREEPORT                42.29N 89.63W
02/11/2018  E3.5 INCH        STEPHENSON         IL   PUBLIC           

            OVERNIGHT SNOW TOTAL. 

0634 AM     SNOW             PARK VIEW               41.69N 90.54W
02/11/2018  M3.4 INCH        SCOTT              IA   NWS EMPLOYEE     

            OVERNIGHT TOTAL. 

0730 AM     SNOW             1 NW GENESEO            41.47N 90.18W
02/11/2018  M3.4 INCH        HENRY              IL   COCORAHS         

            COCORAHS STATION IL-HY-8, 1 NW GENESEO. 

0821 AM     SNOW             ELDRIDGE                41.64N 90.57W
02/11/2018  M3.4 INCH        SCOTT              IA   NWS EMPLOYEE     

            OVERNIGHT TOTAL. 

0958 AM     SNOW             ALEDO                   41.20N 90.75W
02/11/2018  M3.2 INCH        MERCER             IL   CO-OP OBSERVER   

            OVERNIGHT TOTAL. 

0700 AM     SNOW             2 WSW CHADWICK          42.00N 89.94W
02/11/2018  M3.0 INCH        CARROLL            IL   COCORAHS         

            COCORAHS STATION IL-CR-4, 2 WSW CHADWICK. 

0700 AM     SNOW             1 SW COLETA             41.89N 89.81W
02/11/2018  M3.0 INCH        WHITESIDE          IL   COCORAHS         

            COCORAHS STATION IL-WD-8, 1 SW COLETA. 

0700 AM     SNOW             2 SSE DAVENPORT         41.53N 90.59W
02/11/2018  M3.0 INCH        SCOTT              IA   COCORAHS         

            COCORAHS STATION IA-ST-4, 2 SSE DAVENPORT. 

0730 AM     SNOW             2 NNW DAVENPORT         41.58N 90.62W
02/11/2018  M3.0 INCH        SCOTT              IA   COCORAHS         

            COCORAHS STATION IA-ST-31, 2 NNW DAVENPORT. 

0733 AM     SNOW             ALBANY                  41.79N 90.22W
02/11/2018  E3.0 INCH        WHITESIDE          IL   PUBLIC           

            VIA TWITTER. 

0821 AM     SNOW             1 WNW MORRISON          41.81N 89.98W
02/11/2018  M3.0 INCH        WHITESIDE          IL   TRAINED SPOTTER  

            OVERNIGHT TOTAL. 

0844 AM     SNOW             BURLINGTON              40.81N 91.12W
02/11/2018  E3.0 INCH        DES MOINES         IA   PUBLIC           

            OVERNIGHT SNOW TOTAL. 

0844 AM     SNOW             NEW BOSTON              41.17N 91.00W
02/11/2018  E3.0 INCH        MERCER             IL   PUBLIC           

            OVERNIGHT SNOW TOTAL. 

0855 AM     SNOW             WEVER                   40.72N 91.23W
02/11/2018  E3.0 INCH        LEE                IA   PUBLIC           

            OVERNIGHT SNOW TOTAL. 

0700 AM     SNOW             1 E KEWANEE             41.25N 89.90W
02/11/2018  M2.8 INCH        HENRY              IL   CO-OP OBSERVER   

            CO-OP OBSERVER STATION KEWI2, 1 E KEWANEE. 

0812 AM     SNOW             5 NNE PRINCETON         41.44N 89.43W
02/11/2018  M2.8 INCH        BUREAU             IL   TRAINED SPOTTER  

            OVERNIGHT SNOW TOTAL. 

0821 AM     SNOW             4 NNW DAVENPORT         41.61N 90.63W
02/11/2018  M2.8 INCH        SCOTT              IA   NWS EMPLOYEE     

            OVERNIGHT TOTAL. 

0700 AM     SNOW             1 SE DAVENPORT          41.54N 90.59W
02/11/2018  M2.7 INCH        SCOTT              IA   COCORAHS         

            COCORAHS STATION IA-ST-37, 1 SE DAVENPORT. 

0700 AM     SNOW             1 SE DAVENPORT          41.54N 90.59W
02/11/2018  M2.7 INCH        SCOTT              IA   COCORAHS         

            COCORAHS STATION IA-ST-37, 1 SE DAVENPORT. 

0700 AM     SNOW             LOWDEN                  41.87N 90.93W
02/11/2018  M2.7 INCH        CEDAR              IA   CO-OP OBSERVER   

            CO-OP OBSERVER STATION LWDI4, LOWDEN. 

0700 AM     SNOW             DONNELLSON              40.63N 91.57W
02/11/2018  M2.6 INCH        LEE                IA   CO-OP OBSERVER   

            CO-OP OBSERVER STATION DNNI4, DONNELLSON. 

0610 AM     SNOW             DAVENPORT               41.56N 90.60W
02/11/2018  M2.5 INCH        SCOTT              IA   OFFICIAL NWS OBS 

            SNOWFALL SINCE LAST EVENING. SNOW DEPTH 9 
            INCHES. AT THE NATIONAL WEATHER SERVICE 
            OFFICE AT THE DAVENPORT AIRPORT. 

0630 AM     SNOW             ELIZABETH               42.33N 90.25W
02/11/2018  M2.5 INCH        JO DAVIESS         IL   CO-OP OBSERVER   

            CO-OP OBSERVER STATION EZBI2, ELIZABETH. 

0700 AM     SNOW             4 W MAQUOKETA           42.07N 90.70W
02/11/2018  M2.5 INCH        JACKSON            IA   CO-OP OBSERVER   

            CO-OP OBSERVER STATION MKTI4, 4 W MAQUOKETA. 

0700 AM     SNOW             2 N MUSCATINE           41.47N 91.04W
02/11/2018  M2.5 INCH        MUSCATINE          IA   CO-OP OBSERVER   

            CO-OP OBSERVER STATION MSTI4, 2 N MUSCATINE. 

0733 AM     SNOW             4 ENE CLINTON           41.86N 90.16W
02/11/2018  M2.5 INCH        WHITESIDE          IL   TRAINED SPOTTER  

            OVERNIGHT TOTAL. 

0825 AM     SNOW             3 ENE CHARLIE HEATH MEM 40.60N 91.84W
02/11/2018  E2.5 INCH        CLARK              MO   TRAINED SPOTTER  

            EVENT TOTAL. SNOW DEPTH 4 INCHES. 

0844 AM     SNOW             MAQUOKETA               42.07N 90.67W
02/11/2018  E2.5 INCH        JACKSON            IA   PUBLIC           

            OVERNIGHT SNOW TOTAL. 

0812 AM     SNOW             1 S WALCOTT             41.58N 90.77W
02/11/2018  M2.4 INCH        SCOTT              IA   TRAINED SPOTTER  

            OVERNIGHT SNOW TOTAL. 

0747 AM     SNOW             1 NE FORT MADISON       40.64N 91.33W
02/11/2018  E2.3 INCH        LEE                IA   TRAINED SPOTTER  

             

0953 AM     SNOW             2 WSW IOWA CITY         41.65N 91.57W
02/11/2018  E2.3 INCH        JOHNSON            IA   TRAINED SPOTTER  

            EVENT TOTAL. 

0844 AM     SNOW             2 NE CEDAR RAPIDS       41.99N 91.64W
02/11/2018  E2.2 INCH        LINN               IA   PUBLIC           

            OVERNIGHT SNOW TOTAL. 

0856 AM     SNOW             1 ESE NORA              42.46N 89.93W
02/11/2018  E2.1 INCH        JO DAVIESS         IL   TRAINED SPOTTER  

            OVERNIGHT SNOW TOTAL. 

0600 AM     SNOW             BELLEVUE L/D 12         42.27N 90.42W
02/11/2018  M2.0 INCH        JO DAVIESS         IL   MESONET          

            MESONET STATION BLVI4, BELLEVUE L/D 12. 

0600 AM     SNOW             MEMPHIS                 40.46N 92.17W
02/11/2018  M2.0 INCH        SCOTLAND           MO   CO-OP OBSERVER   

            CO-OP OBSERVER STATION MMPM7, MEMPHIS. 

0600 AM     SNOW             PRAIRIE CITY            40.59N 90.46W
02/11/2018  M2.0 INCH        MCDONOUGH          IL   CO-OP OBSERVER   

            CO-OP OBSERVER STATION PRCI2, PRAIRIE CITY. 

0610 AM     SNOW             MOLINE                  41.49N 90.49W
02/11/2018  M2.0 INCH        ROCK ISLAND        IL   OFFICIAL NWS OBS 

            SNOWFALL SINCE LAST EVENING. SNOW DEPTH 10 
            INCHES. AT THE QUAD CITY AIRPORT. 

0655 AM     SNOW             E SOLON                 41.80N 91.49W
02/11/2018  M2.0 INCH        JOHNSON            IA   TRAINED SPOTTER  

            OVERNIGHT TOTAL. 

0700 AM     SNOW             GALENA                  42.42N 90.43W
02/11/2018  M2.0 INCH        JO DAVIESS         IL   CO-OP OBSERVER   

            CO-OP OBSERVER STATION GPBI2, GALENA. 

0700 AM     SNOW             IOWA CITY               41.65N 91.53W
02/11/2018  M2.0 INCH        JOHNSON            IA   CO-OP OBSERVER   

            CO-OP OBSERVER STATION ICYI4, IOWA CITY. 

0733 AM     SNOW             WNW PARNELL             41.58N 92.01W
02/11/2018  M2.0 INCH        IOWA               IA   TRAINED SPOTTER  

            OVERNIGHT TOTAL. 

0821 AM     SNOW             SE STANWOOD             41.89N 91.15W
02/11/2018  M2.0 INCH        CEDAR              IA   TRAINED SPOTTER  

            OVERNIGHT TOTAL. 

0945 AM     SNOW             2 WNW BURLINGTON        40.82N 91.16W
02/11/2018  M2.0 INCH        DES MOINES         IA   TRAINED SPOTTER  

            OVERNIGHT SNOW TOTAL. 

0958 AM     SNOW             2 NE MUSCATINE          41.44N 91.04W
02/11/2018  M2.0 INCH        MUSCATINE          IA   TRAINED SPOTTER  

            OVERNIGHT TOTAL. 

0958 AM     SNOW             1 ESE NEW LONDON        40.92N 91.40W
02/11/2018  M1.9 INCH        HENRY              IA   TRAINED SPOTTER  

            OVERNIGHT TOTAL. 

0700 AM     SNOW             2 NE COLUSA             40.59N 91.15W
02/11/2018  M1.8 INCH        HANCOCK            IL   COCORAHS         

            COCORAHS STATION IL-HN-1, 2 NE COLUSA. 

0700 AM     SNOW             4 N HASKINS             41.40N 91.54W
02/11/2018  M1.8 INCH        WASHINGTON         IA   COCORAHS         

            COCORAHS STATION IA-WS-2, 4 N HASKINS. 

0700 AM     SNOW             WASHINGTON              41.28N 91.68W
02/11/2018  M1.8 INCH        WASHINGTON         IA   CO-OP OBSERVER   

            CO-OP OBSERVER STATION WSHI4, WASHINGTON. 

0700 AM     SNOW             3 W RICHMOND            41.46N 91.76W
02/11/2018  M1.7 INCH        WASHINGTON         IA   COCORAHS         

            COCORAHS STATION IA-WS-7, 3 W RICHMOND. 

0700 AM     SNOW             3 SSW ANAMOSA           42.08N 91.30W
02/11/2018  M1.6 INCH        JONES              IA   CO-OP OBSERVER   

            CO-OP OBSERVER STATION AMOI4, 3 SSW ANAMOSA. 

0600 AM     SNOW             KEOKUK L/D 19           40.40N 91.37W
02/11/2018  M1.5 INCH        HANCOCK            IL   MESONET          

            MESONET STATION EOKI4, KEOKUK L/D 19. 

0610 AM     SNOW             1 SSE CEDAR RAPIDS      41.95N 91.66W
02/11/2018  M1.5 INCH        LINN               IA   TRAINED SPOTTER  

            SNOWFALL SINCE LAST EVENING. 

0740 AM     SNOW             1 ENE ANAMOSA           42.12N 91.27W
02/11/2018  M1.4 INCH        JONES              IA   TRAINED SPOTTER  

            OVERNIGHT TOTAL. 

0700 AM     SNOW             1 NNW WILLIAMSTOWN      41.59N 91.75W
02/11/2018  M1.3 INCH        JOHNSON            IA   COCORAHS         

            COCORAHS STATION IA-JH-9, 1 NNW 
            WILLIAMSTOWN. 

0914 AM     SNOW             2 W CEDAR RAPIDS        41.98N 91.71W
02/11/2018  M1.3 INCH        LINN               IA   TRAINED SPOTTER  

            OVERNIGHT SNOW TOTAL. 

0958 AM     SNOW             1 SE VINTON             42.16N 92.02W
02/11/2018  M1.3 INCH        BENTON             IA   TRAINED SPOTTER  

            OVERNIGHT TOTAL. 

0610 AM     SNOW             CEDAR RAPIDS            41.97N 91.67W
02/11/2018  M1.2 INCH        LINN               IA   BROADCAST MEDIA  

            AT KCRG-TV IN DOWNTOWN CEDAR RAPIDS. 

0700 AM     SNOW             CASCADE                 42.30N 91.02W
02/11/2018  M1.2 INCH        DUBUQUE            IA   CO-OP OBSERVER   

            CO-OP OBSERVER STATION CASI4, CASCADE. 

0733 AM     SNOW             2 NNE CEDAR RAPIDS      42.01N 91.65W
02/11/2018  M1.2 INCH        LINN               IA   TRAINED SPOTTER  

            OVERNIGHT TOTAL. 

0927 AM     SNOW             4 NNW CEDAR RAPIDS      42.03N 91.69W
02/11/2018  M1.2 INCH        LINN               IA   TRAINED SPOTTER  

            OVERNIGHT SNOW TOTAL. 

0610 AM     SNOW             DUBUQUE                 42.50N 90.69W
02/11/2018  M1.1 INCH        DUBUQUE            IA   OFFICIAL NWS OBS 

            SNOWFALL SINCE LAST EVENING. SNOW DEPTH 10 
            INCHES. AT THE DUBUQUE REGIONAL AIRPORT. 

0700 AM     SNOW             SALEM 1 S               40.83N 91.62W
02/11/2018  M1.0 INCH        HENRY              IA   CO-OP OBSERVER   

            CO-OP OBSERVER STATION SLHI4, SALEM 1 S. 

0700 AM     SNOW             VINTON                  42.17N 92.00W
02/11/2018  M1.0 INCH        BENTON             IA   CO-OP OBSERVER   

            CO-OP OBSERVER STATION VNTI4, VINTON. 

0755 AM     SNOW             EDGEWOOD                42.64N 91.40W
02/11/2018  M1.0 INCH        DELAWARE           IA   TRAINED SPOTTER  

             

0820 AM     SNOW             1 NNW EDGEWOOD          42.63N 91.39W
02/11/2018  E1.0 INCH        DELAWARE           IA   TRAINED SPOTTER  

            OVERNIGHT TOTAL. 

0918 AM     SNOW             5 E CANTRIL             40.64N 91.98W
02/11/2018  E1.0 INCH        VAN BUREN          IA   TRAINED SPOTTER  

            EVENT TOTAL. SNOW DEPTH 2.5 INCHES. 

0700 AM     SNOW             MANCHESTER              42.47N 91.45W
02/11/2018  M0.8 INCH        DELAWARE           IA   CO-OP OBSERVER   

            CO-OP OBSERVER STATION MHRI4, MANCHESTER. 

0655 AM     SNOW             ESE CARTHAGE            40.41N 91.13W
02/11/2018  M0.5 INCH        HANCOCK            IL   TRAINED SPOTTER  

            OVERNIGHT TOTAL.
Environment:

Figure 1: 00Z 2/11 DVN Sounding	Figure 2: 12z 2/11 Sounding
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Dangerous Heat in the West; Coastal Flooding & High Rip Current Risk through the Weekend on the East Coast; Flash Flooding Concerns in the Southeast and Southwest

Event Summary: February 11th, 2018
