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June 21-27 Severe Weather


Chicago Storm

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Absolutely incredible light show when this line of training storms built in at about 4 am. Nearly continuous lightning with frequent CG strikes very nearby shaking the walls of the house. The rain came down ridiculously heavy for the first hour, so hard that you could barely see out the window and the gutters were easily outmatched. Barely a whiff of wind. More than 3 hours later, it's still rumbling and raining. This one is just going to sit overhead and rain itself out. Very electric, very wet.

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decent size severe warning box just popped up in SW LOT...

 

just had strong S/SE non storm related winds...maybe a few gusts in the 40 range....

 

radar looks to be lighting up again further to the west also as well as filling in again south of spots that got hammered in LOT overnight

 

North East Iowa starting to really light up now too....looks like any break for LOT will be short lived

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meso low just west of dekalb?

//DISCUSSION...UPDATED 14Z...

UPPER LEVEL DISTURBANCE MOVING ACROSS NORTHERN ILLINOIS WILL

CONTINUE TO PRODUCE SCT`D SHOWERS AND THUNDERSTORMS THROUGH THE

REMAINDER OF THE MORNING HOURS. MORE ORGANIZED LINE OF TSRA SW OF

JOT WILL LIFT NE AND LIKELY IMPACT MDW BY AROUND 15Z WITH PERIOD

OF +TSRA AND GUSTY WINDS POSSIBLE. AS DISTURBANCE MOVES SLOWLY

EAST THE COVERAGE OF SHRA/TSRA WILL PROBABLY DECREASE THIS

AFTERNOON. SMALL SFC LOW SW OF RFD LIKELY TO MAINTAIN MOSTLY

EASTERLY COMPONENT TO WINDS THROUGH THE MORNING HOURS WITH LOW

CONFIDENCE ON THE WIND DIRECTION HEADING INTO THE AFTERNOON.

IZZI

 

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Impressive rainfall totals in some localized spots.

 

Updated:

 

 

Storm was kind of noisy here, but I slept through most of it.

 

Edit: Result of the heavy rain in Crystal Lake this morning.

 

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New watch in IN/KY now. Also new day 2 added slight risk area for parts of WI/IL/IN.

 

   DAY 2 CONVECTIVE OUTLOOK 
   NWS STORM PREDICTION CENTER NORMAN OK
   1229 PM CDT WED JUN 26 2013

   VALID 271200Z - 281200Z

   ...THERE IS A SLGT RISK OF SVR TSTMS FOR PARTS OF THE CNTRL/SRN
   PLAINS AND OZARK PLATEAU...

   ...THERE IS A SLGT RISK OF SVR TSTMS FOR PARTS OF THE ERN CONUS...

   ...THERE IS A SLGT RISK OF SVR TSTMS FOR PARTS OF THE MIDWEST AND
   UPPER GREAT LAKES...

   ...SYNOPSIS...
   A STOUT MID-LEVEL ANTICYCLONE WILL CONTINUE TO BUILD ACROSS THE FOUR
   CORNERS WITH A RIDGE EMANATING TOWARDS THE CANADIAN ROCKIES. THIS
   WILL FACILITATE AMPLIFICATION OF A LARGE-SCALE TROUGH OVER THE EAST.
   A SHORTWAVE IMPULSE OVER NRN IL WILL BE MODIFIED BY PROBABLE
   CONVECTION ON D1...BUT SHOULD GENERALLY TRANSLATE EWD TOWARDS THE
   MID-ATLANTIC. THIS SHOULD INDUCE CYCLOGENESIS NEAR THE LEE OF THE
   NRN APPALACHIANS. AN UPSTREAM SHORTWAVE TROUGH OVER THE SRN CANADIAN
   PRAIRIES WILL DIG ACROSS THE UPPER GREAT LAKES BY EARLY FRI. THIS
   WILL AID IN A COLD FRONT SURGING SWD ACROSS THE CNTRL PLAINS...WHICH
   SHOULD INTERSECT THE DRYLINE IN PARTS OF CNTRL/ERN KS THU AFTERNOON.


   ...MIDWEST...UPPER GREAT LAKES...
   MID-LEVEL HEIGHT FALLS WILL OVERSPREAD THE UPPER GREAT LAKES BY THU
   AFTERNOON AND WITH COOLING TEMPERATURES ALOFT...GUIDANCE APPEARS TO
   BE ON TRACK WITH SUGGESTING SCATTERED CONVECTION FORMING ACROSS
   PARTS OF WI. A STRONG MID-LEVEL JET CHARACTERIZED BY 500 MB NWLYS
   AOA 50 KT WILL ENVELOP MUCH OF THE NRN PLAINS SEWD INTO
   IL...RESULTING IN LARGE STRAIGHT-LINE HODOGRAPHS FAVORABLE FOR
   SPLITTING SUPERCELLS. SETUP SHOULD YIELD A FEW SUPERCELLS AND
   PERHAPS AN ORGANIZED CLUSTER WITH LARGE HAIL AND LOCALIZED DAMAGING
   WINDS AS THE PRIMARY THREATS.

   ..GRAMS.. 06/26/2013
 

post-4544-0-39094700-1372269636_thumb.gi

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Yeah, tomorrow might be a bit of a sleeper. Low level flow could be better but mid/high level flow looks good. Strong surface heating will be critical given decreasing mid level lapse rates but setup could turn into something halfway decent especially if enough sun.

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Quality storms last night. Probably the best of the season thus far. Tight rainfall gradient too...Well under an inch here, compared to 6"+ up in Barrington/Algonquin.

 

Would have been a nice lightning photo op if not for it being around and after 3AM.

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BULLETIN - EAS ACTIVATION REQUESTED

TORNADO WARNING

NATIONAL WEATHER SERVICE INDIANAPOLIS IN

502 PM EDT WED JUN 26 2013

 

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

 

* TORNADO WARNING FOR...

  SOUTHWESTERN CLAY COUNTY IN WEST CENTRAL INDIANA...

  NORTHEASTERN SULLIVAN COUNTY IN SOUTHWEST INDIANA...

  SOUTHEASTERN VIGO COUNTY IN WEST CENTRAL INDIANA...

 

* UNTIL 530 PM EDT

 

* AT 500 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A

  TORNADO WAS LOCATED 13 MILES NORTHEAST OF SULLIVAN...AND MOVING

  EAST AT 15 MPH.

 

  HAZARD...TORNADO AND QUARTER SIZE HAIL.

 

  SOURCE...RADAR INDICATED ROTATION.

 

  I.

 

* LOCATIONS IMPACTED INCLUDE...

  CLAY CITY.
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BULLETIN - EAS ACTIVATION REQUESTED

TORNADO WARNING

NATIONAL WEATHER SERVICE INDIANAPOLIS IN

532 PM EDT WED JUN 26 2013

 

THE NATIONAL WEATHER SERVICE IN INDIANAPOLIS HAS ISSUED A

 

* TORNADO WARNING FOR...

  SOUTHWESTERN CLAY COUNTY IN WEST CENTRAL INDIANA...

  NORTHWESTERN GREENE COUNTY IN SOUTHWEST INDIANA...

  NORTHEASTERN SULLIVAN COUNTY IN SOUTHWEST INDIANA...

  SOUTHEASTERN VIGO COUNTY IN WEST CENTRAL INDIANA...

 

* UNTIL 600 PM EDT

 

* AT 528 PM EDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A

  TORNADO WAS LOCATED 8 MILES NORTHEAST OF SULLIVAN...AND MOVING

  SOUTHEAST AT 25 MPH.

 

  HAZARD...TORNADO.

 

  SOURCE...RADAR INDICATED ROTATION.

 

  I

 

* LOCATIONS IMPACTED INCLUDE...

  LINTON...HYMERA...COALMONT...JASONVILLE...DUGGER...VICKSBURG AND

  SWITZ CITY.
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