Heavy to Excessive Rainfall in the Mid-Atlantic; Critical Fire Weather in the Northern Plains and Southwest U.S.

A slow-moving storm system will continue to produce widespread heavy showers and thunderstorms which may bring excessive rainfall and flooding across the Mid-Atlantic region today and tonight. Hot, dry and breezy conditions will continue to support critical fire weather in the northern Plains and Upper Midwest today. Critical fire weather is also forecast in Arizona, New Mexico, and west Texas. Read More >

Overview

An upper level storm system tracked east across the Great Plains and Midwest Sunday morning, bringing precipitation to much of Missouri, southeast Iowa, west central and northwest Illinois. Freezing rain was the dominant precipitation type, with many areas south of I-80 seeing at least a glaze of ice on area roads and sidewalks. Many accidents were reported to the Iowa and Illinois Department of Transportation and travel was not advised late Sunday morning and early afternoon. Southeast Iowa and west central Illinois saw even higher freezing rain amounts, with ice thicknesses around a tenth of an inch.

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Storm Reports
Rainfall
Environment

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Storm Reports

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PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
915 PM CST SUN JAN 07 2018

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

1008 AM     FREEZING RAIN    MACOMB                  40.47N 90.68W 
01/07/2018  E0.01 INCH       MCDONOUGH          IL   LAW ENFORCEMENT 

            LIGHT ICE GLAZE ON ROADS. 

1206 PM     FREEZING RAIN    2 NW BURLINGTON         40.83N 91.15W 
01/07/2018  E0.08 INCH       DES MOINES         IA   TRAINED SPOTTER 

            ICE THICKNESS OF .08 OF AN INCH ON THE PATIO. LIGHT 
            FREEZING RAIN CONTINUES.

1234 PM     FREEZING RAIN    MOLINE QUAD-CITY AIRPOR 41.45N 90.50W 
01/07/2018  E0.02 INCH       ROCK ISLAND        IL   OFFICIAL NWS OBS

            GLAZE OF ICE ON MOST SURFACES.

1242 PM     FREEZING RAIN    3 NW KEOKUK             40.44N 91.45W 
01/07/2018  E0.02 INCH       LEE                IA   TRAINED SPOTTER 

            LIGHT FREEZING RAIN WITH A GLAZE OF ICE ON SIDEWALKS AND 
            ROADS.

0339 PM     FREEZING RAIN    5 E CANTRIL             40.64N 91.98W 
01/07/2018  E0.10 INCH       VAN BUREN          IA   TRAINED SPOTTER 

            A TENTH OF AN INCH OF ICE ACCUMULATION ON EXPOSED 
            SURFACES. TEMPERATURES WAS 33 DEGREES WITH SOME FREEZING 
            DRIZZLE. 

0500 PM     FREEZING RAIN    PARK VIEW               41.69N 90.54W 
01/07/2018  E0.00 INCH       SCOTT              IA   NWS EMPLOYEE    

            COATING OF ICE ON UNTREATED SURFACES. 

0530 PM     FREEZING RAIN    3 NW KEOKUK             40.44N 91.45W 
01/07/2018  E0.20 INCH       LEE                IA   TRAINED SPOTTER 

            TWO TENTHS OF AN INCH OF ICE ON UNTREATED SURFACES. 
            FREEZING RAIN HAS CHANGEED OVER TO A MIX OF SLEET AND 
            SNOW. TRANSMISSTION OF THE REPORT WAS DELAYED.

Rain Reports


Figure 1: Local 24-hr Rainfall	Figure 2: Regional 24-hr Rainfall

Environment


Figure 1: Mesoscale Precipitation Discussion #10	Figure 2: Mesoscale Precipitaiton Discussion #11


Figure 3: 12z 1/7/18 DVN Sounding	Figure 4: 00z 1/8/18 DVN Sounding

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Heavy to Excessive Rainfall in the Mid-Atlantic; Critical Fire Weather in the Northern Plains and Southwest U.S.

Storm Summary January 7th