Sunday, May 19, 2013

Recap of Sunday evening storms and updates on Sunday overnight storm threats

Tornado Watch canceled for Green, Rock and Walworth counties.

The Tornado Watch has been canceled for Stephenson, Jo Daviess, Carroll and Whiteside counties.




A strong line of thunderstorms now moving near the Jo Daviess/Stephenson County line will continue to move east around 40 mph.  While this storm remains below severe limits, it will still be capable of producing wind gusts up to 50 mph, heavy rain and pea to penny sized hail.  This storm will also affect areas in south-central Wisconsin including Monroe and New Glarus.






The Severe Thunderstorm Warning for Jo Daviess, Stephenson and Carroll counties has weakened below severe limits.  Therefore, the severe thunderstorm warning has been canceled.




Severe Thunderstorm Warning for Jo Daviess, Northwest Stephenson  and Carroll counties until 12:30am.  This storm will be capable of producing wind gusts to 60 mph and hail near one inch.

Technical discussion from the Storm Prediction Center regarding storm potential overnight.
http://www.spc.noaa.gov/products/md/md0720.html






A line of strong to severe thunderstorms will continue to move east out of Iowa and into western Illinois right around midnight.  Thunderstorm wind gusts with this line have reached close to 70mph.



The Tornado Watch will continue through 3am for Northern Illinois and Southern Wisconsin.








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Earlier Storms:

10:01pm Update: All warnings for North Central and Northeastern Illinois are canceled. Tornado Watch remains until 3AM CDT. Threaten for severe weather is not over.

Current Radar Update:

 A line of strong thunderstorms continues to move to the east around 30 mph.  This storm has had a history of producing pea to penny up to golf ball sized hail along with strong wind gusts.







9:23pm Update: The National Weather Service has issued a Severe T-Storm Warning for the following counties: Boone, Cook, De Kalb, DuPage, Kane, Kendall, Lake, McHenry, Will Counties until10:30 PM CDT.

8:42pm Update: The National Weather Service has issued a Severe T-Storm Warning for the following counties: Winnebago, Boone, Ogle, eastern Lee, northern DeKalb and western McHenry until 9:30pm.

These storms are capable of producing 60mph winds.


 

8:00pm Update: A Severe T-Storm Warning has been issued for northwestern Whiteside, Carroll, Ogle, and Lee until 8:30pm. These storms are capable of penny to nickel-sized hail and 60mph winds.

Cities in the path of this storm:
Sterling: 8:00pm\
Dixon: 8:15pm
Lanark: 8:15pm
Polo: 8:17pm



7:25pm Update: A Severe T-Storm Warning has been issued for southeastern Whiteside County until 8:15pm.



These storms are capable of producing 60mph winds and nickel-sized hail.

These storms should reach the Dixon area sometime around 8:30pm and Rockford around 10:00pm.

Storm Reports:
Local Storm Report - law enforcement reports TSTM WND DMG at 08:50 PM CDT -- many trees down throughout Beloit.

Local Storm Report - emergency mngr reports HAIL of pea size (E0.25 INCH) at 09:13 PM CDT -- estimated pea sized hail at Beaver Road and Beaver Spring

Local Storm Report - Straight-line wind damage reported by Ham radio operator at IL75 and Meridian Rd. in NW Winnebago Co. Trees downed in Loves Park.

Local Storm Report - amateur radio reports HAIL of pea size (E0.25 INCH) at 09:05 PM CDT -- pea size hail near Linden and 35th Street.

Local Storm Report -  amateur radio reports TSTM WND DMG at 09:13 PM CDT -- estimated 25 to 30 inch diameter tree down on Route 75, approximately 1.5 miles east of Meridian road.

Local Storm Report - trained spotter reports HAIL of half dollar size (E1.25 INCH) at 08:59 PM CDT -- quarter to half dollar size hail 2 miles west of downtown. time estimated. 

Local Storm Report - trained spotter reports HAIL of nickel size (E0.88 INCH) at 09:25 PM CDT -- nickel size hail at Popular Grove Airport.

Local Storm Report - Power lines down in Rockton off Hononegah rd, poles leaning. Shredded branches everywhere.


Local Storm Report - law enforcement reports TSTM WND DMG at 09:02 PM CDT -- tree went through roof of home on Afton Road between Afton and Beloit.

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