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Mississippi Valley Summer Heat Wave; Severe Thunderstorms and Flooding Possible to the North

A dangerous summer heat wave will continue much of the Plains, Mid/Lower Mississippi Valley, Southeast U.S. today and Thursday. Areas of severe thunderstorms may occur today and again on Thursday from parts of the northern/central Rockies and High Plains into the Ohio Valley and Carolinas. Excessive rainfall over similar areas may bring flash flooding today and Thursday. Read More >

Severe thunderstorms developed from Minnesota through Arkansas on the late afternoon of March 6th and marched eastward into the night. A quasi-linear convective system (QLCS) had evolved across central to eastern Iowa, and continued east into northern Illinois. While this showed a gradual weakening trend across the forecast area, it still had scattered severe winds (60+) among widespread 40-60 mph winds.  

For more on northwest Illinois storms, please visit the NWS Quad Cities.  

Storm Map Radar
Storm Report Map Radar Image at 12:30 a.m.

 

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
422 PM CST TUE MAR 07 2017

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

1220 AM     TSTM WND GST     ROCHELLE                41.92N 89.06W 
03/07/2017  M51.00 MPH       OGLE               IL   AWOS            

1225 AM     TSTM WND GST     PERU                    41.34N 89.13W 
03/07/2017  M53.00 MPH       LA SALLE           IL   AWOS            

            GUST TO 53 MPH AT PERU AWOS.

1236 AM     TSTM WND DMG     3 NE OTTAWA             41.38N 88.80W 
03/07/2017                   LA SALLE           IL   PUBLIC          

            LARGE TREE DOWNED ONTO ILLINOIS HIGHWAY 71. RELAYED 
            THROUGH LAW ENFORCEMENT.

1236 AM     TSTM WND DMG     1 S OTTAWA              41.34N 88.84W 
03/07/2017                   LA SALLE           IL   PUBLIC          

            POLES AND LINES DOWN/BENT. RELAYED THROUGH LAW 
            ENFORCEMENT. 

1240 AM     TSTM WND GST     SOMONAUK                41.63N 88.68W 
03/07/2017  M62.00 MPH       DE KALB            IL   TRAINED SPOTTER 

1241 AM     TSTM WND DMG     SYCAMORE                41.98N 88.70W 
03/07/2017                   DE KALB            IL   TRAINED SPOTTER 

            THREE TO FOUR INCH DIAMETER TREE LIMBS BLOWN DOWN AT RT 
            23 AND RT 64.

1241 AM     HAIL             SYCAMORE                41.98N 88.70W 
03/07/2017  M1.00 INCH       DE KALB            IL   TRAINED SPOTTER 

            QUARTER SIZE HAIL AT RT 23 AND RT 64.

1241 AM     HAIL             DE KALB                 41.93N 88.75W 
03/07/2017  M0.88 INCH       DE KALB            IL   TRAINED SPOTTER 

            NICKEL SIZE AT NIU.

1245 AM     TSTM WND DMG     SANDWICH                41.65N 88.62W 
03/07/2017                   DE KALB            IL   PUBLIC          

            POWER POLES DOWNED BY THE HIGH SCHOOL. HOME WEATHER 
            STATION OBSERVED A GUST OF 73 MPH.

1254 AM     TSTM WND GST     SUGAR GROVE             41.77N 88.46W 
03/07/2017  M56.00 MPH       KANE               IL   ASOS            

            GUST TO 56 MPH AT ARR ASOS.

1254 AM     TSTM WND DMG     AURORA                  41.77N 88.29W 
03/07/2017                   KANE               IL   PUBLIC          

            A TREE DOWNED ONTO A CAR. TIME ESTIMATED PER RADAR AND 
            SURROUNDING OBSERVATIONS.

1255 AM     TSTM WND GST     PONTIAC                 40.88N 88.64W 
03/07/2017  M59.00 MPH       LIVINGSTON         IL   AWOS            

            GUST TO 59 MPH AT PNT AWOS.

1255 AM     TSTM WND GST     AURORA                  41.77N 88.29W 
03/07/2017  M59.00 MPH       KANE               IL   MESONET         

1255 AM     TSTM WND DMG     ROSCOE                  42.42N 89.01W 
03/07/2017                   WINNEBAGO          IL   TRAINED SPOTTER 

            LARGE BRANCHES SNAPPED.

0103 AM     TSTM WND DMG     OSWEGO                  41.70N 88.33W 
03/07/2017                   KENDALL            IL   PUBLIC          

            A COUPLE POWER POLES DOWNED.

0105 AM     TSTM WND GST     LIBERTYVILLE            42.28N 87.97W 
03/07/2017  M55.00 MPH       LAKE               IL   EMERGENCY MNGR  

            GUST TO 55 MPH AT LAKE COUNTY EOC AT RT 21 AND WINCHESTER
            RD.

0106 AM     TSTM WND DMG     CAMPUS                  41.02N 88.31W 
03/07/2017                   LIVINGSTON         IL   PUBLIC          

            LARGE PINE TREE DOWNED.

0109 AM     TSTM WND GST     ROMEOVILLE              41.65N 88.09W 
03/07/2017  M50.00 MPH       WILL               IL   OFFICIAL NWS OBS

0110 AM     TSTM WND GST     SHOREWOOD               41.52N 88.20W 
03/07/2017  M70.00 MPH       WILL               IL   MESONET         

0113 AM     TSTM WND GST     BOLINGBROOK             41.70N 88.08W 
03/07/2017  M63.00 MPH       WILL               IL   MESONET         

0114 AM     TSTM WND GST     2 W COAL CITY           41.29N 88.32W 
03/07/2017  M58.00 MPH       GRUNDY             IL   MESONET         

0127 AM     TSTM WND DMG     4 ESE BONFIELD          41.12N 87.99W 
03/07/2017                   KANKAKEE           IL   LAW ENFORCEMENT 

            LARGE TREE DOWNED ONTO A ROAD. TIME ESTIMATED PER RADAR.

0129 AM     TSTM WND DMG     3 SW CHICAGO            41.85N 87.67W 
03/07/2017                   COOK               IL   BROADCAST MEDIA 

            LARGE PORTION OF WALKWAY ROOF AT A SCHOOL DAMAGED. TIME 
            ESTIMATED PER RADAR.

0137 AM     TSTM WND DMG     KANKAKEE                41.12N 87.86W 
03/07/2017                   KANKAKEE           IL   LAW ENFORCEMENT 

            LARGE BRANCHES DOWNED ACROSS TOWN.

0223 AM     TSTM WND GST     2 SE VALPARAISO         41.46N 87.02W 
03/07/2017  M62.00 MPH       PORTER             IN   ASOS            

            MEASURED AT KVPZ.

0225 AM     NON-TSTM WND DMG REMINGTON               40.76N 87.15W 
03/07/2017                   JASPER             IN   LAW ENFORCEMENT 

            SEMI BLOWN OVER ON I-65 NEAR MILE MARKER 200

 

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