Alert archive / Illinois / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 71, NWS Lincoln, IL
NWS Lincoln, IL issued this severe thunderstorm warning at May 22, 2011, 1:35 PM CDT for 5 counties in Illinois. It was in force for 55 min. 3 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 22, 2011, 1:35 PM CDT (18:35 UTC)
- Expired
- May 22, 2011, 2:30 PM CDT
- In force
- 55 min
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Cass County, IL, Mason County, IL, Menard County, IL, Morgan County, IL, Sangamon County, IL
The radar
The Lincoln radar (KILX), 48 km from the middle of the area, began a volume at 18:35 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 22, 2:26 PM CDT | TSTM WND GST 66 | 8 E Petersburg, IL | |
| May 22, 2:29 PM CDT | HAIL 0.75 | 1 S Lincolns New Salem, IL | |
| May 22, 2:33 PM CDT | HAIL 1 | 1 Nw Athens, IL |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 22, 12:51 PM CDT | Tornado Watch | SPC | 10 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 6.6 hours before the alert went out and 109 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1465 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- -98 m²/s²
- 0-3 km storm-relative helicity
- 133 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
790 WUUS53 KILX 221835 SVRILX ILC017-125-129-137-167-221930- /O.NEW.KILX.SV.W.0071.110522T1835Z-110522T1930Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LINCOLN IL 135 PM CDT SUN MAY 22 2011 THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EASTERN CASS COUNTY IN WEST CENTRAL ILLINOIS... CENTRAL MASON COUNTY IN CENTRAL ILLINOIS... MENARD COUNTY IN CENTRAL ILLINOIS... NORTH CENTRAL MORGAN COUNTY IN WEST CENTRAL ILLINOIS... NORTHWESTERN SANGAMON COUNTY IN CENTRAL ILLINOIS... * UNTIL 230 PM CDT. * AT 131 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR LITERBERRY...OR 9 MILES SOUTHEAST OF VIRGINIA...AND MOVING NORTHEAST AT 35 MPH. ADDITIONAL STRONG THUNDERSTORMS WERE LOCATED BETWEEN JACKSONVILLE AND CHAPIN...AND WILL MOVE INTO THE WARNED AREA. * LOCATIONS IMPACTED INCLUDE... MASON CITY...ASHLAND...PLEASANT PLAINS...TALLULA...PETERSBURG... ATHENS...GREENVIEW...PHILADELPHIA...PRENTICE...NEWMANSVILLE... SALISBURY...OAKFORD...ATTERBERRY...LINCOLNS NEW SALEM...CANTRALL... SWEETWATER AND FANCY PRAIRIE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. && LAT...LON 4026 8972 3991 8957 3977 9012 3992 9025 TIME...MOT...LOC 1834Z 240DEG 30KT 3985 9010 WIND...HAIL 60MPH 1.00IN $$ GEELHART
2 follow-up statements
409 WWUS53 KILX 221855 SVSILX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LINCOLN IL 155 PM CDT SUN MAY 22 2011 ILC017-125-129-137-167-221930- /O.CON.KILX.SV.W.0071.000000T0000Z-110522T1930Z/ MASON IL-MENARD IL-MORGAN IL-SANGAMON IL-CASS IL- 155 PM CDT SUN MAY 22 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN CASS...NORTHWESTERN SANGAMON...NORTH CENTRAL MORGAN...MENARD AND CENTRAL MASON COUNTIES UNTIL 230 PM CDT... AT 152 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED STRONG TO SEVERE THUNDERSTORMS ACROSS THE WARNED AREA. THE MOST SEVERE STORM WAS LOCATED NEAR LITERBERRY...BUT OTHER STRONG TO SEVERE STORMS EXTENDED NORTHEAST THROUGH PETERSBURG AND ATTERBERRY. ALL STORMS WERE MOVING NORTHEAST AT 35 MPH. ADDITIONAL STRONG TO SEVERE STORMS WILL MOVE NORTHEAST OUT OF THE JACKSONVILLE AREA. LOCATIONS IMPACTED INCLUDE... MASON CITY...ASHLAND...PLEASANT PLAINS...TALLULA...PETERSBURG... GREENVIEW...ATHENS...PHILADELPHIA...PRENTICE...NEWMANSVILLE... SALISBURY...OAKFORD...LINCOLNS NEW SALEM...ATTERBERRY...SWEETWATER AND CANTRALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. && LAT...LON 4026 8972 3991 8957 3977 9012 3992 9025 TIME...MOT...LOC 1854Z 237DEG 29KT 3987 9015 WIND...HAIL 60MPH 1.00IN $$ GEELHART
719 WWUS53 KILX 221915 SVSILX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE LINCOLN IL 215 PM CDT SUN MAY 22 2011 ILC017-125-129-137-167-221930- /O.CON.KILX.SV.W.0071.000000T0000Z-110522T1930Z/ MASON IL-MENARD IL-MORGAN IL-SANGAMON IL-CASS IL- 215 PM CDT SUN MAY 22 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN CASS...NORTHWESTERN SANGAMON...NORTH CENTRAL MORGAN...MENARD AND SOUTHEASTERN MASON COUNTIES UNTIL 230 PM CDT... AT 209 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A LARGE AREA OF STRONG TO SEVERE THUNDERSTORMS OVER THE WARNED AREA. THE STORMS ARE CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THE MOST SEVERE STORM WAS LOCATED NEAR ASHLAND...OR 10 MILES EAST OF VIRGINIA...MOVING NORTHEAST AT 35 MPH. OTHER STRONG TO SEVERE STORMS EXTENDED FROM JACKSONVILLE NORTHEAST TO GREENVIEW. LOCATIONS IMPACTED INCLUDE... MASON CITY...TALLULA...PETERSBURG...GREENVIEW...ATHENS... SALISBURY...LINCOLNS NEW SALEM...ATTERBERRY...SWEETWATER AND CANTRALL. PRECAUTIONARY/PREPAREDNESS ACTIONS... A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED ACT QUICKLY AND MOVE TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM. IF YOU ARE IN THE PATH OF THIS STORM...PREPARE IMMEDIATELY FOR LARGE HAIL AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING AND AWAY FROM WINDOWS. && LAT...LON 3990 9022 4022 8970 3991 8957 3977 9012 TIME...MOT...LOC 1913Z 237DEG 29KT 3995 8998 WIND...HAIL 60MPH 1.00IN $$ GEELHART
The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 22, 5:26 AM CDT | Special Weather Statement | ILX | Piatt | 64 min |
| May 22, 8:08 AM CDT | Special Weather Statement | ILX | Clark, Coles, Cumberland | 82 min |
| May 22, 1:08 PM CDT | Special Weather Statement | ILX | Tazewell | 52 min |
| May 22, 1:11 PM CDT | Severe Thunderstorm Warning | ILX | Mason, Tazewell | 34 min |
| May 22, 1:39 PM CDT | Severe Thunderstorm Warning | ILX | Tazewell, Woodford | 36 min |
| May 22, 1:44 PM CDT | Severe Thunderstorm Warning | ILX | Morgan | 16 min |
| May 22, 1:52 PM CDT | Severe Thunderstorm Warning | ILX | Morgan, Scott | 38 min |
| May 22, 2:08 PM CDT | Severe Thunderstorm Warning | ILX | McLean, Tazewell, Woodford | 37 min |
| May 22, 2:29 PM CDT | Severe Thunderstorm Warning | ILX | Logan, Menard, Sangamon | 46 min |
| May 22, 2:38 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Logan, McLean, Tazewell | 52 min |
| May 22, 2:43 PM CDT | Severe Thunderstorm Warning | ILX | Morgan | 32 min |
| May 22, 2:59 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Logan, Macon, Sangamon | 46 min |
| May 22, 3:06 PM CDT | Severe Thunderstorm Warning | ILX | Sangamon | 39 min |
| May 22, 3:24 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, McLean | 66 min |
| May 22, 3:29 PM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Piatt | 46 min |
| May 22, 3:43 PM CDT | Severe Thunderstorm Warning | ILX | Sangamon | 47 min |
| May 22, 4:14 PM CDT | Severe Thunderstorm Warning | ILX | Champaign, Piatt | 28 min |
| May 22, 5:24 PM CDT | Severe Thunderstorm Warning | ILX | Knox | 27 min |
| May 22, 6:00 PM CDT | Severe Thunderstorm Warning | ILX | Fulton, Mason, Peoria, Tazewell | 30 min |
| May 22, 6:07 PM CDT | Severe Thunderstorm Warning | ILX | Knox | 38 min |
| May 22, 6:08 PM CDT | Special Weather Statement | ILX | Schuyler | 37 min |
| May 22, 6:30 PM CDT | Severe Thunderstorm Warning | ILX | Peoria, Tazewell, Woodford | 45 min |
| May 22, 6:43 PM CDT | Severe Thunderstorm Warning | ILX | Fulton | 33 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 2011Every severe thunderstorm warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.