Alert archive / Illinois / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 231, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at May 28, 2011, 12:40 PM CDT for Calhoun County, Pike County, Illinois; Lincoln County, Pike County, Missouri. It was in force for 50 min. 4 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 28, 2011, 12:40 PM CDT (17:40 UTC)
- Expired
- May 28, 2011, 1:30 PM CDT
- In force
- 50 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.75 in
- Wind
- 60.0 mph
Counties Calhoun County, IL, Pike County, IL, Lincoln County, MO, Pike County, MO
The radar
The St Louis radar (KLSX), 73 km from the middle of the area, began a volume at 17:44 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 28, 12:46 PM CDT | HAIL 1 | Bowling Green, MO | COMING DOWN HARD |
| May 28, 12:49 PM CDT | HAIL 1.25 | Bowling Green, MO | |
| May 28, 12:56 PM CDT | HAIL 1.75 | 3 W Louisiana, MO | LOTS OF GOLF BALL SIZE HAIL |
| May 28, 1:10 PM CDT | HAIL 0.75 | 5 S Clarksville, MO | HAIL LOCATED 5 SOUTH OF CLARKSVILLE NEAR HIGHWAY 79. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 5.7 hours before the alert went out and 223 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
- 505 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
410 WUUS53 KLSX 281740 SVRLSX ILC013-149-MOC113-163-281830- /O.NEW.KLSX.SV.W.0231.110528T1740Z-110528T1830Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE ST LOUIS MO 1240 PM CDT SAT MAY 28 2011 THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... CALHOUN COUNTY IN SOUTHWEST ILLINOIS... SOUTH CENTRAL PIKE COUNTY IN WEST CENTRAL ILLINOIS... NORTHERN LINCOLN COUNTY IN EAST CENTRAL MISSOURI... PIKE COUNTY IN NORTHEAST MISSOURI... * UNTIL 130 PM CDT * AT 1239 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR CURRYVILLE...OR 7 MILES EAST OF VANDALIA...AND MOVING EAST AT 45 MPH. * LOCATIONS IMPACTED INCLUDE... BOWLING GREEN...LOUISIANA...NEW HARTFORD...PIKE...EOLIA... CLARKSVILLE...BELLEVIEW...ASHLEY...ST. CLEMENT...CYRENE... EDGEWOOD...SILEX...WHITESIDE...PAYNESVILLE...NEW HOPE...ANNADA AND MOZIER. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE 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. && LAT...LON 3939 9066 3908 9085 3918 9142 3953 9126 TIME...MOT...LOC 1741Z 276DEG 39KT 3933 9133 WIND...HAIL 60MPH 1.75IN $$ GLASS
2 follow-up statements
774 WWUS53 KLSX 281752 SVSLSX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 1252 PM CDT SAT MAY 28 2011 ILC013-149-MOC113-163-281830- /O.CON.KLSX.SV.W.0231.000000T0000Z-110528T1830Z/ PIKE IL-CALHOUN IL-LINCOLN MO-PIKE MO- 1252 PM CDT SAT MAY 28 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CALHOUN COUNTY IN SOUTHWEST ILLINOIS...AND SOUTH CENTRAL PIKE COUNTY IN WEST CENTRAL ILLINOIS...AND NORTH CENTRAL LINCOLN COUNTY IN EAST CENTRAL MISSOURI...AND CENTRAL PIKE COUNTY IN NORTHEAST MISSOURI UNTIL 130 PM CDT... AT 1248 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING GOLF BALL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR BOWLING GREEN...MOVING EAST AT 45 MPH. THERE HAVE BEEN NUMEROUS REPORTS OF QUARTER TO PING PONG BALL SIZE HAIL WITH THIS STORM. LOCATIONS IMPACTED INCLUDE... LOUISIANA...EOLIA...CLARKSVILLE...BELLEVIEW...CYRENE...EDGEWOOD... WHITESIDE...PAYNESVILLE...NEW HOPE...ANNADA AND MOZIER. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. && LAT...LON 3924 9135 3948 9123 3939 9066 3908 9085 TIME...MOT...LOC 1752Z 276DEG 39KT 3933 9112 WIND...HAIL 60MPH 1.75IN $$ GLASS
137 WWUS53 KLSX 281805 SVSLSX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 105 PM CDT SAT MAY 28 2011 ILC013-149-MOC113-163-281830- /O.CON.KLSX.SV.W.0231.000000T0000Z-110528T1830Z/ PIKE IL-CALHOUN IL-LINCOLN MO-PIKE MO- 105 PM CDT SAT MAY 28 2011 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CALHOUN COUNTY IN SOUTHWEST ILLINOIS...AND SOUTH CENTRAL PIKE COUNTY IN WEST CENTRAL ILLINOIS...AND NORTHERN LINCOLN COUNTY IN EAST CENTRAL MISSOURI...AND CENTRAL PIKE COUNTY IN NORTHEAST MISSOURI UNTIL 130 PM CDT... AT 102 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL... AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR EOLIA...OR 11 MILES EAST OF BOWLING GREEN...MOVING EAST AT 50 MPH. LOCATIONS IMPACTED INCLUDE... CLARKSVILLE...BELLEVIEW...PAYNESVILLE...NEW HOPE...ANNADA AND MOZIER. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS STORM HAS A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN ST LOUIS. && LAT...LON 3924 9135 3948 9123 3939 9066 3908 9085 TIME...MOT...LOC 1805Z 277DEG 43KT 3928 9095 WIND...HAIL 60MPH 1.50IN $$ CARNEY
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 1:14 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Jersey | 46 min |
| May 28, 1:49 PM CDT | Severe Thunderstorm Warning | LSX | Greene, Jersey, Macoupin, Montgomery | 41 min |
| May 28, 2:28 PM CDT | Severe Thunderstorm Warning | LSX | Fayette, Montgomery | 47 min |
| May 28, 8:51 AM CDT | Severe Thunderstorm Warning | LSX | Sainte Genevieve, Saint Francois, Washington | 39 min |
| May 28, 11:31 AM CDT | Severe Thunderstorm Warning | LSX | Audrain, Monroe | 44 min |
| May 28, 12:06 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Pike, Ralls | 39 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 2011Severe Thunderstorm Warnings in Missouri, 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.