Chicago Storm Posted May 20, 2012 Share Posted May 20, 2012 Might as well have a seperate thread... Slight risk expanded a bit on the latest SWOD1. ..UPPER MI..WI..NRN/CNTRL IL INTO NWRN IND WATER VAPOR IMAGERY INDICATES A STRONG UPPER TROUGH MOVING TOWARD THE UPPER MS VALLEY...WITH LARGE SCALE ASCENT SPREADING INTO WI AND WRN UPPER MI ATTM. SURFACE LOW OVER WEST CENTRAL WI IS EXPECTED TO MOVE INTO NERN WI/CENTRAL UPPER MI BY THIS EVENING BEFORE LIFTING INTO ONTARIO TONIGHT. A COLD FRONT EXTENDING SWD FROM THE LOW WILL MOVE EWD ACROSS MUCH OF WI AND NWRN/WEST CENTRAL IL THIS AFTERNOON REACHING A LINE FROM SERN LOWER MI INTO THE LOWER OH VALLEY BY LATE TONIGHT. AHEAD OF THE COLD FRONT...VISIBLE IMAGERY SHOWS LARGELY CLEAR SKIES PROMOTING STRONG DIURNAL HEATING...WITH SURFACE TEMPERATURES EXPECTED TO REACH THE MID/UPPER 80S THIS AFTERNOON. SUFFICIENT MOISTURE IS IN PLACE WITH SURFACE DEW POINTS NEAR 60F AND PW AROUND 1 INCH...AND WHEN COUPLED WITH STEEPER MID LEVEL LAPSE RATES THE ENVIRONMENT WILL BECOME MODERATELY UNSTABLE WITH MLCAPE OF 1500-2000 J/KG THIS AFTERNOON. AN EARLIER BAND OF ELEVATED PRE-FRONTAL STORMS OVER NORTH CENTRAL WI INTO WRN UPPER MI HAS SHOWN SIGNS OF WEAKENING SLIGHTLY...WHILE NEW STORMS HAVE BEEN DEVELOPING OVER THE LAST 1-2 HRS JUST AHEAD OF THE COLD FRONT FROM NEAR EAU NWD TOWARD ASX. AS THE COLD FRONT MOVES EWD...THIS CONVECTION IS EXPECTED TO INCREASE IN INTENSITY AS IT MOVES INTO AN INCREASINGLY UNSTABLE ENVIRONMENT. SWLY MID LEVEL WINDS OF 40-50 KT ARE RESULTING IN SUFFICIENT DEEP LAYER SHEAR /40-45 KT IN THE LOWEST 6 KM/ TO ENHANCE STORM ORGANIZATION AND INTENSITY INCLUDING POTENTIAL FOR A FEW SUPERCELLS TO FORM...WITH SOME STORMS POSSIBLY BECOMING SEVERE AS EARLY AS 17-18Z. ACTIVITY IS EXPECTED TO SPREAD EWD ACROSS PARTS OF WI AND UPPER MI THROUGH THE LATE AFTERNOON AND EVENING BEFORE GRADUALLY WEAKENING TONIGHT. DAMAGING WIND GUSTS AND LARGE HAIL WILL BE THE PRIMARY THREATS...ALTHOUGH A TORNADO OR TWO MAY ALSO BE POSSIBLE. STORMS ARE EXPECTED TO DEVELOP SWD ALONG/AHEAD OF THE FRONT THIS AFTERNOON INTO PARTS OF NWRN AND WEST CENTRAL IL AS STRONG HEATING WEAKENS THE CAP. ALTHOUGH WINDS ALOFT AND ASSOCIATED VERTICAL SHEAR WILL GRADUALLY DIMINISH WITH SWD EXTENT...ORGANIZED MULTICELL STORMS ARE LIKELY TO DEVELOP AND SPREAD EWD AHEAD OF THE FRONT THROUGH THE EVENING WITH A THREAT FOR LARGE HAIL AND DAMAGING WINDS. Link to comment Share on other sites More sharing options...
Chicago Storm Posted May 20, 2012 Author Share Posted May 20, 2012 LOT 1134 AM CDT TEMPERATURES ARE QUICKLY JUMPING INTO THE UPPER 80S TO LOW 90S ACROSS THE REGION THIS MORNING AHEAD OF AN APPROACHING COLD FRONT ACROSS EASTERN IOWA. THERE ARE TWO AREAS OF CONVECTIVE DEVELOPMENT THAT WE ARE WATCHING THIS AFTERNOON. THE FIRST WILL BE ASSOCIATED WITH THE COLD FRONTAL ZONE. CONVECTIVE DEVELOPMENT ALONG THIS FRONTAL ZONE SHOULD COMMENCE ACROSS NORTH CENTRAL AND NORTHWESTERN ILLINOIS BY EARLY TO MID AFTERNOON (AFTER 19 UTC). THIS ACTIVITY IS THEN EXPECTED TO SPREAD EASTWARD ACROSS NORTHEASTERN ILLINOIS BY LATE AFTERNOON AND EARLY THIS EVENING (5 TO 8 PM FOR CHICAGO). HOWEVER...ADDITIONAL CONVECTIVE DEVELOPMENT IS POSSIBLE ACROSS NORTHEASTERN ILLINOIS AND NORTHWESTERN INDIANA BY EARLY TO MID AFTERNOON AHEAD OF THE MAIN ACTIVITY. THIS ADDITIONAL AREA OF POSSIBLE CONVECTIVE DEVELOPMENT APPEARS TO BE ASSOCIATED WITH LOW LEVEL CONVERGENCE ALONG A PRE FRONTAL TROUGH ACROSS EASTERN ILLINOIS AND NORTHWESTERN INDIANA. MODEL GUIDANCE CONTINUES TO INDICATE DECENT MID LEVEL LAPSE RATES IN EXCESS OF 7 DEGREES C/KM WITHIN THE WARM SECTOR ACROSS NORTHERN ILLINOIS AND NORTHWESTERN INDIANA. SURFACE DEWPOINTS WILL LIKELY REMAIN ONLY IN THE UPPER 50S TO LOW 60S THIS AFTERNOON (SOME MID 60S POSSIBLY POOLING ALONG THE FRONTAL ZONE) AS SURFACE HIGH PRESSURE ACROSS THE GULF COAST WILL IMPEDE BETTER MOISTURE TRANSPORT INTO THE REGION THIS AFTERNOON. HOWEVER...IN SPITE OF THESE MODEST DEW POINTS...AFTERNOON HEATING WILL ALLOW TEMPERATURES TO EASILY TOP OUT IN THE LOW 90S. THIS WILL BE ENOUGH TO PRODUCE ML CAPES IN EXCESS OF 1500 J/KG. THE ONLY LACKING INGREDIENT WILL BE DEEP LAYER SHEAR...WHICH IS PROGGED TO ONLY BE AROUND 25 KT. IN SPITE OF THIS... THETA E DIFFERENCES BETWEEN THE SURFACE AND THE MID LEVELS ARE FORECAST TO BE IN EXCESS OF 20 DEGREES C AHEAD OF THE COLD FRONTAL ZONE AND DOWNDRAFT CAPE IN EXCESS OF 1500 J/KG. THESE PARAMETERS SUGGEST AN INCREASED THREAT OF STRONG DAMAGING WIND GUSTS ASSOCIATED WITH MICROBURSTS. THIS APPEARS TO BE THE PRIMARY THREAT...ALTHOUGH SOME MARGINALLY SEVERE HAIL CANNOT BE RULED OUT WITH AN MULTI-CELLS DUE TO THE STEEP MID LEVEL LAPSE RATES. Link to comment Share on other sites More sharing options...
Chicago Storm Posted May 20, 2012 Author Share Posted May 20, 2012 Nice inverted V sounding with about a 15C+ T/D spread... Link to comment Share on other sites More sharing options...
Geos Posted May 20, 2012 Share Posted May 20, 2012 Severe thunderstorms watch, complete with some warnings already in northern WI. Link to comment Share on other sites More sharing options...
A-L-E-K Posted May 20, 2012 Share Posted May 20, 2012 decent little dCAPE pool in NE Illinois. CU starting to show some signs of growth. Link to comment Share on other sites More sharing options...
Geos Posted May 20, 2012 Share Posted May 20, 2012 Storms are now firing in McHenry and Boone County! Cumulus are really on the increase here. Edit: Pretty good small cell south of where Cyclone lives. Looks like cell popping near Rensselaer, IN too. Link to comment Share on other sites More sharing options...
kevlon62 Posted May 20, 2012 Share Posted May 20, 2012 Things starting to cook off to the west with some audible thunder amid the gusty winds. Little prefrontal convergence goin' eh? 250+ craft exhibitors with tents set up on the Square for the annual Fair Diddley. We'll see if we can keep it dry through the afternoon. Link to comment Share on other sites More sharing options...
Geos Posted May 20, 2012 Share Posted May 20, 2012 Nice pictures Kevlon. I recognize the location of the 2nd picture! Severe T-storm warning near Cyclone's place: SEVERE THUNDERSTORM WARNING ILC011-195-201930- /O.NEW.KDVN.SV.W.0038.120520T1906Z-120520T1930Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE QUAD CITIES IA IL 206 PM CDT SUN MAY 20 2012 THE NATIONAL WEATHER SERVICE IN THE QUAD CITIES HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN BUREAU COUNTY IN NORTH CENTRAL ILLINOIS... SOUTHEASTERN WHITESIDE COUNTY IN NORTHWEST ILLINOIS... * UNTIL 230 PM CDT. * AT 204 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS AROUND 60 MPH...AND QUARTER SIZE HAIL. THIS STORM WAS LOCATED APPROXIMATELY 15 MILES SOUTHWEST OF DEER GROVE...OR 14 MILES NORTHEAST OF KEWANEE...AND MOVING NORTHEAST AT 40 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO WALNUT. THIS INCLUDES INTERSTATE 80 IN ILLINOIS BETWEEN MILE MARKERS 36 AND 42. Link to comment Share on other sites More sharing options...
frostfern Posted May 20, 2012 Share Posted May 20, 2012 The lake breeze convergence cumulus line is getting some taller towers forming on it. Can see them out my window. Some good SBCAPE pooling as well. If that 2000 j/kg is accurate. Mid levels are kind of dry though so it may be tough to get anything going without a deeper lifting mechanism. Link to comment Share on other sites More sharing options...
Indystorm Posted May 20, 2012 Share Posted May 20, 2012 Things are definitely more humid here with 60 dew point. At 1:15 EDT in Goshen had a clap of thunder from a microcell overhead near the library with sunshine all around it. Only a few sprinkles but the atmosphere is getting primed. Could be an interesting afternoon and evening at least compared to what we've had to watch lately even if multi cells do predominate. Link to comment Share on other sites More sharing options...
frostfern Posted May 20, 2012 Share Posted May 20, 2012 Little cells are starting to pop up, though mostly to my north. Link to comment Share on other sites More sharing options...
Geos Posted May 20, 2012 Share Posted May 20, 2012 Little cells are starting to pop up, though mostly to my north. Looks like one micro cell popping up near I-196 SW of GR. More cells going up near Chicago's east side and in SC WI. Link to comment Share on other sites More sharing options...
frostfern Posted May 20, 2012 Share Posted May 20, 2012 Microcells continue to pop up on the lake breeze just to my west but they're really struggling with the mid-level dryness. There's definitely strong boundary layer convergence going on but it's taking a while to moisten up. Wind is still SE here. Link to comment Share on other sites More sharing options...
frostfern Posted May 20, 2012 Share Posted May 20, 2012 I'm a little worried CB tops from the WI convection may be out over the lake during the solar eclipse, blocking my view. I'm heading out anyways but it would be nice if there was a sun break between cells. Don't know if I'll have better luck heading towards Muskegon, Holland, or Suagatuck. Link to comment Share on other sites More sharing options...
frostfern Posted May 20, 2012 Share Posted May 20, 2012 Microcell just produced it's first thunderclap 10 miles to my west. Up to 90 degrees now with a dewpoint rising to 60 and wind is veering more southerly rather than southeasterly. Link to comment Share on other sites More sharing options...
Indystorm Posted May 20, 2012 Share Posted May 20, 2012 I really think we will be severely limited per the eclipse here in the eastern part of the U.S. even with absolutely clear skies. With respect to svr wx it does seem like there is a pre frontal trough or convergence zone of some sort along the IL/IN line extending downstate. If only we had upper air support today. Link to comment Share on other sites More sharing options...
frostfern Posted May 20, 2012 Share Posted May 20, 2012 I really think we will be severely limited per the eclipse here in the eastern part of the U.S. even with absolutely clear skies. With respect to svr wx it does seem like there is a pre frontal trough or convergence zone of some sort along the IL/IN line extending downstate. If only we had upper air support today. There is a 45 minute window of partial eclipse prior to 9:00 PM near the lakeshore. It's just that that is exactly when that line of storms in WI will be moving in over the lake. Link to comment Share on other sites More sharing options...
Geos Posted May 20, 2012 Share Posted May 20, 2012 Those thunderstorms by Rockford are growing in number. The party in the center of Woodstock might have to end early! Edit: SPECIAL WEATHER STATEMENT...CORRECTED NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 324 PM CDT SUN MAY 20 2012 ILZ008-010-011-202045- DE KALB IL-LEE IL-OGLE IL- 324 PM CDT SUN MAY 20 2012 ...SPECIAL WEATHER STATEMENT... AT 316 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM STILLMAN VALLEY TO AMBOY...MOVING NORTHEAST AT 30 MPH. ONE HALF INCH DIAMETER HAIL...WINDS TO 55 MPH...FREQUENT CLOUD TO GROUND LIGHTNING...BRIEF HEAVY DOWNPOURS...ARE POSSIBLE WITH THESE STORMS. LOCATIONS IMPACTED INCLUDE... ASHTON... STILLMAN VALLEY... AMBOY... FRANKLIN GROVE... HILLCREST... ROCHELLE... KIRKLAND... MALTA... PAW PAW... THE FOLLOWING LOCATIONS MAY ALSO BE IMPACTED... LEE COUNTY FAIRGROUNDS. Link to comment Share on other sites More sharing options...
frostfern Posted May 20, 2012 Share Posted May 20, 2012 It looks like the lake breeze is convergence line is getting to be past it's peak. It failed to produce any consolidated cells. The convergence line moving in over the southern part of the lake may touch off a few more cells in the SW corner though. Link to comment Share on other sites More sharing options...
Indystorm Posted May 20, 2012 Share Posted May 20, 2012 Dews seem to be mixing out from values seen earlier today. Not expecting much. Link to comment Share on other sites More sharing options...
Chicago Storm Posted May 20, 2012 Author Share Posted May 20, 2012 LOT 302 PM CDT... AREA OF CONCERN OVER NORTHEASTERN ILLINOIS AND NORTHWEST INDIANA LOOKS DIFFUSE ON VISIBLE SATELLITE IMAGERY BUT WEAK RETURNS CONTINUE TO PULSE UP AND DOWN ON RADAR AND WILL HAVE TO CONTINUE TO MONITOR THIS AREA. FOR NOW THOUGH...THE MAIN FOCUS HAS SHIFTED WEST TOWARDS THE COLD FRONT WHICH IS MAKING A PUSH ACROSS THE MISSISSIPPI RIVER. A FEW THUNDERSTORMS HAVE ALREADY DEVELOPED OVER PORTIONS OF NORTHWEST AND NORTH CENTRAL ILLINOIS ALONG THE INSTABILITY AXIS. DESPITE THE MODERATE INSTABILITY IN EXCESS OF 1000 J/KG PER LATEST SPC MESO-ANALYSIS...DEEP LAYER SHEAR OF LESS THAN 30 KT CONTINUES TO LIMIT THE SEVERE POTENTIAL. BEST DCAPE VALUES ARE CLOSER TO THE IL/IN STATELINE WHERE HIGHER DEW POINT DEPRESSIONS PERSIST...SO UNLESS WE SEE DEVELOPMENT MOVE FARTHER AHEAD OF THE FRONT...THINK THE WIND THREAT //AND OVERALL SEVERE THREAT IN GENERAL// WILL BE MARGINAL. Link to comment Share on other sites More sharing options...
Geos Posted May 20, 2012 Share Posted May 20, 2012 Severe Thunderstorm warning: SEVERE THUNDERSTORM WARNING ILC007-037-111-141-202145- /O.NEW.KLOT.SV.W.0029.120520T2041Z-120520T2145Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 341 PM CDT SUN MAY 20 2012 THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN BOONE COUNTY IN NORTH CENTRAL ILLINOIS... NORTHERN DE KALB COUNTY IN NORTH CENTRAL ILLINOIS... SOUTHWESTERN MCHENRY COUNTY IN NORTHEAST ILLINOIS... EAST CENTRAL OGLE COUNTY IN NORTH CENTRAL ILLINOIS... * UNTIL 445 PM CDT * AT 338 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 5 MILES SOUTHEAST OF CHERRY VALLEY TO 6 MILES NORTHWEST OF MALTA...AND MOVING NORTHEAST AT 30 MPH. * SEVERE THUNDERSTORMS WILL BE NEAR... BELVIDERE AND KIRKLAND AROUND 350 PM CDT. KINGSTON AROUND 400 PM CDT. GENOA AROUND 405 PM CDT. MARENGO AROUND 425 PM CDT. THE FOLLOWING LOCATIONS MAY ALSO BE IMPACTED... BOONE COUNTY FAIRGROUNDS. Link to comment Share on other sites More sharing options...
Superstorm93 Posted May 20, 2012 Share Posted May 20, 2012 MESOSCALE DISCUSSION 0853 NWS STORM PREDICTION CENTER NORMAN OK 0350 PM CDT SUN MAY 20 2012 AREAS AFFECTED...NERN IL THROUGH SERN WI CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE VALID 202050Z - 202215Z PROBABILITY OF WATCH ISSUANCE...40 PERCENT SUMMARY...STORMS HAVE BECOME A LITTLE BETTER ORGANIZED AS A LINE SEGMENT OVER NCNTRL IL. THIS ACTIVITY WILL POSE A RISK FOR DAMAGING WIND AS IT MOVES INTO NERN IL AND SERN WI. TRENDS ARE BEING MONITORED FOR A POSSIBLE WW. DISCUSSION...STORMS DEVELOPING ALONG A PRE-FRONTAL CONVERGENCE AXIS HAVE BECOME BETTER ORGANIZED AS A LINE SEGMENT. ACTIVITY IS FORMING WITHIN AN ENVIRONMENT CHARACTERIZED BY 30-35F BOUNDARY LAYER TEMPERATURE-DEWPOINT SPREADS...STEEP LOW-MID LEVEL LAPSE RATES AND MODERATE /1000-1500 J/KG/ INSTABILITY. THIS ENVIRONMENT IS FAVORABLE FOR ISOLATED STRONG TO DAMAGING WIND GUSTS...ESPECIALLY WITH STORMS THAT HAVE HIGHER REFLECTIVITY CORES ABOVE 5 KM. CONCERN IS THAT AS STORMS BECOME MORE LINEAR...THE THREAT MAY BECOME A LITTLE MORE WIDESPREAD. ..DIAL/WEISS.. 05/20/2012 Link to comment Share on other sites More sharing options...
kevlon62 Posted May 20, 2012 Share Posted May 20, 2012 Those thunderstorms by Rockford are growing in number. The party in the center of Woodstock might have to end early!Edit: Going to see what's doing down there now. NNE movement seems to have yielded to a more NE to E direction for that SVR warned cell. Could have us written all over it. They are scheduled for exhibitor break down at 5 p.m. Might have to call it a bit early... Link to comment Share on other sites More sharing options...
Geos Posted May 20, 2012 Share Posted May 20, 2012 Going to see what's doing down there now. NNE movement seems to have yielded to a more NE to E direction for that SVR warned cell. Could have us written all over it. They are scheduled for exhibitor break down at 5 p.m. Might have to call it a bit early... Severe Weather Statement for the entire county. Cell just popped over Woodstock! SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 358 PM CDT SUN MAY 20 2012 ILC007-037-111-202145- /O.CON.KLOT.SV.W.0029.000000T0000Z-120520T2145Z/ MCHENRY IL-BOONE IL-DE KALB IL- 358 PM CDT SUN MAY 20 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN DE KALB...SOUTHEASTERN BOONE AND SOUTHWESTERN MCHENRY COUNTIES UNTIL 445 PM CDT... AT 355 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM BELVIDERE TO 6 MILES WEST OF MARENGO TO KINGSTON...MOVING NORTHEAST AT 35 MPH. SEVERE THUNDERSTORMS WILL BE NEAR... MARENGO AROUND 410 PM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. Link to comment Share on other sites More sharing options...
A-L-E-K Posted May 20, 2012 Share Posted May 20, 2012 nice little outflow boundary coming off that line already. some popcorn cells over the lake, might go snap some pics. Link to comment Share on other sites More sharing options...
Geos Posted May 20, 2012 Share Posted May 20, 2012 Thunderstorms turning more NE now. Warning for northern Lake County now. SEVERE THUNDERSTORM WARNING ILC097-111-202200- /O.NEW.KLOT.SV.W.0030.120520T2106Z-120520T2200Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 406 PM CDT SUN MAY 20 2012 THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN LAKE COUNTY IN NORTHEAST ILLINOIS... MCHENRY COUNTY IN NORTHEAST ILLINOIS... * UNTIL 500 PM CDT * AT 404 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM HARVARD TO MARENGO...AND MOVING NORTHEAST AT 40 MPH. * SEVERE THUNDERSTORMS WILL BE NEAR... WOODSTOCK AROUND 415 PM CDT. BULL VALLEY AROUND 420 PM CDT. HEBRON...WONDER LAKE AND MCHENRY AROUND 425 PM CDT. MCCULLOM LAKE AROUND 430 PM CDT. SUNNYSIDE...SPRING GROVE...RICHMOND AND PISTAKEE HIGHLANDS AROUND 435 PM CDT. FOX LAKE AROUND 440 PM CDT. LAKE CATHERINE...CHANNEL LAKE AND ANTIOCH AROUND 445 PM CDT. THE FOLLOWING LOCATIONS MAY ALSO BE IMPACTED... CHAIN O LAKES STATE PARK AND MCHENRY COUNTY FAIRGROUNDS. Link to comment Share on other sites More sharing options...
kevlon62 Posted May 20, 2012 Share Posted May 20, 2012 Mad dash ab. Link to comment Share on other sites More sharing options...
kevlon62 Posted May 20, 2012 Share Posted May 20, 2012 Crazy out here. Helping people take down tents. Flying. Link to comment Share on other sites More sharing options...
cyclone77 Posted May 20, 2012 Share Posted May 20, 2012 First storms in N. Illinois blew up about 20 miles southeast of here. Link to comment Share on other sites More sharing options...
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