If you are looking for fresh snow by Christmas morning or are curious about potential travel disruptions, the best chances for at least 1" of new snowfall early this week exist across the mountainous West, Great Lakes, and Northeast. Otherwise, temperatures this last full week of December will average above normal for much of the lower 48 states. Read More >
Lightning
One of the noteworthy aspects of this event was the amount of lightning in the storms. While not all storms were severe, the frequency of the lightning certainly made them hazardous to outdoor goers on the evening of August 30th. Below is image of cloud-to-ground lightning strikes within a one hour time frame. There were nearly 4,000 strikes in that time!
Storm Reports
Text Storm Reports
PRELIMINARY LOCAL STORM REPORT...SUMMARY NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 940 PM CDT FRI AUG 30 2013 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0435 PM HEAVY RAIN E HARVARD 42.42N 88.61W 08/30/2013 M2.87 INCH MCHENRY IL COCORAHS FELL IN 60 MINUTES 0445 PM HAIL 2 N ROUND LAKE 42.38N 88.11W 08/30/2013 E1.00 INCH LAKE IL TRAINED SPOTTER 0451 PM HAIL LAKE VILLA 42.42N 88.08W 08/30/2013 M0.75 INCH LAKE IL AMATEUR RADIO INTERSECTION OF GRAND AND CEDAR. 0453 PM TSTM WND GST GRAYSLAKE 42.35N 88.04W 08/30/2013 M55.00 MPH LAKE IL AMATEUR RADIO LAKE AND WASHINGTON. 0453 PM HAIL GRAYSLAKE 42.35N 88.04W 08/30/2013 M1.00 INCH LAKE IL AMATEUR RADIO LAKE AND WASHINGTON. 0456 PM TSTM WND GST GURNEE 42.38N 87.94W 08/30/2013 E60.00 MPH LAKE IL AMATEUR RADIO GRAND AVE AND ALMOND DR 0459 PM TSTM WND DMG 5 N CAPRON 42.47N 88.74W 08/30/2013 BOONE IL PUBLIC LIMBS AND LARGE TREES BLOWN DOWN. VIA FACEBOOK. 0500 PM HAIL HARVARD 42.42N 88.62W 08/30/2013 M1.00 INCH MCHENRY IL TRAINED SPOTTER 0500 PM TSTM WND DMG GRAYSLAKE 42.35N 88.04W 08/30/2013 LAKE IL PUBLIC 600 BLOCK STUART ST. NUMEROUS BRANCHES DOWN. 0502 PM HAIL LINDENHURST 42.42N 88.03W 08/30/2013 E0.25 INCH LAKE IL AMATEUR RADIO ALSO MINOR TREE DAMAGE AT THE INTERSECTION OF LAKE ROAD AND ROUTE 45. 0503 PM HAIL THIRD LAKE 42.37N 88.01W 08/30/2013 E0.75 INCH LAKE IL TRAINED SPOTTER MUTIPLE TREES DOWN AT THE INTERSECTION OF ROUTE 132 AND ROUTE 45. RELAYED BY LAKE COUNTY EMA. 0505 PM TSTM WND DMG MUNDELEIN 42.27N 88.00W 08/30/2013 LAKE IL TRAINED SPOTTER MUTIPLE TREES DOWN AT LEAST 18 INCHES IN DIAMETER AT THE INTERSECTION OF HAMMMOND AND SEYMOUR. REPORT RELAYED BY LAKE COUNTY EMA. 0514 PM TSTM WND DMG LAKE VILLA 42.42N 88.08W 08/30/2013 LAKE IL AMATEUR RADIO MUTIPLE TREES DOWN 12 INCHES IN DIAMETER AT THE INTERSECTION OF DEEP LAKE ROAD AND ROUTE 132. 0515 PM TSTM WND DMG LINDENHURST 42.42N 88.03W 08/30/2013 LAKE IL PUBLIC POWER LINES DOWN. SMALL TREES DOWN AND LARGE BRANCHES. SCATTERED STRUCTURAL DAMAGE. 0517 PM HAIL 3 N HUNTLEY 42.21N 88.42W 08/30/2013 E0.88 INCH MCHENRY IL TRAINED SPOTTER ROUTE 47 AND NORTH 75 0520 PM TSTM WND DMG GURNEE 42.38N 87.94W 08/30/2013 LAKE IL AMATEUR RADIO NUMEROUS TREES DOWN 20 PLUS NEAR THE INTERSECTION OF ROUTE 45 AND AND W ROLLINS ROAD IN GURNEE. 0521 PM TSTM WND DMG LIBERTYVILLE 42.28N 87.97W 08/30/2013 LAKE IL AMATEUR RADIO MULTIPLE TREES DOWN 12 INCHES IN DIAMETER PLUS AT THE INTERSECTION OF ROUTE 45 AND CASEY ROAD. 0526 PM TSTM WND DMG GRAYSLAKE 42.35N 88.04W 08/30/2013 LAKE IL PUBLIC A LARGE TREE FELL ON A CAR. 0530 PM TSTM WND GST S ELGIN 42.04N 88.29W 08/30/2013 E50.00 MPH KANE IL PUBLIC 0530 PM TSTM WND GST ELK GROVE VILLAGE 42.01N 87.99W 08/30/2013 E60.00 MPH COOK IL TRAINED SPOTTER 0540 PM TSTM WND DMG MORTON GROVE 42.04N 87.79W 08/30/2013 COOK IL TRAINED SPOTTER TWO TO THREE INCH DIAMETER TREE LIMBS DOWN NEAR CHURCH AND ORIOLE. 0542 PM HAIL MARENGO 42.25N 88.60W 08/30/2013 E0.88 INCH MCHENRY IL TRAINED SPOTTER 0545 PM TSTM WND DMG MUNDELEIN 42.27N 88.00W 08/30/2013 LAKE IL AMATEUR RADIO 15INCH DIAMETER TREE DOWN ON LAKE STREET EAST OF BUTTERFIELD RD. 0550 PM TSTM WND DMG SKOKIE 42.04N 87.74W 08/30/2013 COOK IL TRAINED SPOTTER THREE LARGE TREES DOWN ON HOMES 0550 PM TSTM WND GST HARWOOD HEIGHTS 41.97N 87.81W 08/30/2013 E70.00 MPH COOK IL PUBLIC ESTIMATED THUNDERSTORM WIND GUST 60 TO 70 MPH. TREE BRANCHES SNAPPED. SOME STREET FLOODING. VIA FACEBOOK. 0552 PM TSTM WND GST S EVANSTON 42.05N 87.69W 08/30/2013 E70.00 MPH COOK IL TRAINED SPOTTER 0556 PM TSTM WND GST SKOKIE 42.04N 87.74W 08/30/2013 E75.00 MPH COOK IL TRAINED SPOTTER POSSIBLE WALL CLOUD NORTHWEST SKOKIE. DEMPSTER AND GROSS POINT ROAD. 0556 PM HEAVY RAIN HARVARD 42.42N 88.62W 08/30/2013 E3.29 INCH MCHENRY IL TRAINED SPOTTER IN JUST OVER AN HOUR. 0600 PM TSTM WND DMG CHICAGO 41.88N 87.63W 08/30/2013 COOK IL TRAINED SPOTTER LARGE TREE LIMBS DOWN FROM FROM 1 INCH TO 8 INCHES IN DIAMETER DOWN ACROSS EDISON PARK. MULTIPLE TREE LIMBS SPLIT OFF FROM TREES. SOME ARE BLOCKING ROADS AND HAVE FALLEN ON WIRES. 0601 PM HEAVY RAIN 2 SE GRAYSLAKE 42.33N 88.01W 08/30/2013 E1.32 INCH LAKE IL COCORAHS IN THE PAST HOUR. 0601 PM TSTM WND GST ELBURN 41.89N 88.47W 08/30/2013 M52.00 MPH KANE IL TRAINED SPOTTER ROUTE 47 AND KESLINGER ROAD. 0602 PM HAIL PARK RIDGE 42.01N 87.84W 08/30/2013 E1.00 INCH COOK IL TRAINED SPOTTER HEAVY RAIN TOO. 0605 PM HAIL CHICAGO 41.88N 87.63W 08/30/2013 M0.75 INCH COOK IL TRAINED SPOTTER MEASURED WIND AT 47 MPH AS WELL. INTERSECTION OF SHERIDAN AND HOLLYWOOD. 0605 PM HAIL CHICAGO 41.88N 87.63W 08/30/2013 E0.75 INCH COOK IL TRAINED SPOTTER NORTHWEST OF DOWNTOWN. LARGE BRANCHES DOWN ESTIMATED 60 MPH THUNDERSTORM WIND GUST. 0608 PM HAIL BELVIDERE 42.25N 88.85W 08/30/2013 M0.75 INCH BOONE IL PUBLIC 0609 PM TSTM WND GST CHICAGO 41.88N 87.63W 08/30/2013 E60.00 MPH COOK IL PUBLIC AT IRVING AND NORTH KOSTNER AVENUE. DIME SIZED HAIL. TREES DOWN AND BLINDING RAIN. 0611 PM HEAVY RAIN CHICAGO 41.88N 87.63W 08/30/2013 E0.40 INCH COOK IL COCORAHS RAIN FELL IN 29 MINUTES. 1 BLOCK WEST OF WRIGLEY FIELD. 0615 PM TSTM WND GST OAK LAWN 41.72N 87.75W 08/30/2013 E57.00 MPH COOK IL TRAINED SPOTTER AT 95TH AND CICERO. 0616 PM HAIL CHICAGO 41.88N 87.63W 08/30/2013 E1.00 INCH COOK IL TRAINED SPOTTER ESTIMATED 70 MPH THUNDERSTORM WIND GUST. MONTROSE AND LAKE SHORE DRIVE. 0622 PM HEAVY RAIN HUNTLEY 42.17N 88.42W 08/30/2013 E2.08 INCH MCHENRY IL TRAINED SPOTTER RAINFALL WITH THE STORM. SLIGHT AND MINOR FLOODING OF SIDE ROADS AND MILLER ROAD. A SLIGHT GUST UNDER 30 MPH BUT ENOUGH TO PULL SOME SMALL TENTS DOWN AT SUMMERFEST DOWN. 0625 PM MARINE TSTM WIND 4 NE CHICAGO 41.92N 87.57W 08/30/2013 M45.00 MPH LMZ741 IL C-MAN STATION 0640 PM HAIL NW DE KALB 41.93N 88.75W 08/30/2013 E0.25 INCH DE KALB IL TRAINED SPOTTER HAIL GREATER THAN PEA SIZE. ESTIMATED THUNDERSTORM WIND GUST TO 40 TO 45 MPH. VISIBILITY DUE TO HEAVY RAIN 400 FEET. 0641 PM HAIL SOUTH CHICAGO 41.74N 87.55W 08/30/2013 E0.25 INCH COOK IL TRAINED SPOTTER NEAR INDIANA BORDER. 0645 PM HEAVY RAIN CRYSTAL LAKE 42.23N 88.33W 08/30/2013 M1.79 INCH MCHENRY IL CO-OP OBSERVER 0704 PM TSTM WND DMG W CROWN POINT 41.42N 87.36W 08/30/2013 LAKE IN PUBLIC LARGE TREE DOWN. 0711 PM HEAVY RAIN WOODSTOCK 42.31N 88.44W 08/30/2013 M2.09 INCH MCHENRY IL CO-OP OBSERVER WITH AFTERNOON/EVENING STORMS. 0715 PM HEAVY RAIN E HARVARD 42.42N 88.61W 08/30/2013 E3.56 INCH MCHENRY IL COCORAHS IN THE PAST 3 HOURS. 0715 PM MARINE TSTM WIND 4 NE TOWN OF PINES 41.73N 86.91W 08/30/2013 M41.00 MPH PORTER IN C-MAN STATION 0715 PM HEAVY RAIN E HARVARD 42.42N 88.61W 08/30/2013 M3.56 INCH MCHENRY IL COCORAHS STORM TOTAL 0717 PM MARINE TSTM WIND 3 NNW BURNS HARBOR 41.65N 87.15W 08/30/2013 M45.00 MPH PORTER IN C-MAN STATION 0730 PM TSTM WND DMG CHICAGO 41.88N 87.63W 08/30/2013 COOK IL PUBLIC EXTENSIVE TREE DAMAGE AND CARS DAMAGED 0816 PM TSTM WND GST WHEATFIELD 41.19N 87.05W 08/30/2013 E52.00 MPH JASPER IN PUBLIC ALSO PEA SIZE HAIL. && $$ BMD