Alert archive / Missouri / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 337, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 18, 2011, 4:30 AM CDT for 10 counties in Missouri. It was in force for 60 min. 5 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
- Jun 18, 2011, 4:30 AM CDT (09:30 UTC)
- Expired
- Jun 18, 2011, 5:30 AM CDT
- In force
- 60 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Audrain County, MO, Callaway County, MO, Franklin County, MO, Gasconade County, MO, Lincoln County, MO, Montgomery County, MO, Osage County, MO, Pike County, MO, Saint Charles County, MO, Warren County, MO
The radar
The St Louis radar (KLSX), 52 km from the middle of the area, began a volume at 09:30 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 |
|---|---|---|---|
| Jun 18, 4:43 AM CDT | TSTM WND DMG | 3 Se Montgomery City, MO | NUMEROUS TREES AND POWER LINES DOWNED ON HIGHWAY 19 BETWEEN INTERSTATE 70 AND MONTGOMERY CITY. HIGHWAY PATROL NOW REPORTS AT LEAST 2 SEMIS BLOWN OVER IN MONTGOMERY COUNTY ALONG INTERSTATE 70. CORRECTED TIME OF OCCURRANCE |
| Jun 18, 4:43 AM CDT | TSTM WND DMG | New Florence, MO | SEMI FLIPPED OVER ON INTERSTATE 70 NEAR MILE MARKER 175. |
| Jun 18, 4:52 AM CDT | HAIL 0.25 | Rhineland, MO | |
| Jun 18, 5:06 AM CDT | TSTM WND DMG | 3 Se Montgomery City, MO | NUMEROUS TREES AND POWER LINES DOWNED ON HIGHWAY 19 BETWEEN INTERSTATE 70 AND MONTGOMERY CITY. HIGHWAY PATROL NOW REPORTS AT LEAST 2 SEMIS BLOWN OVER IN MONTGOMERY COUNTY ALONG INTERSTATE 70 |
| Jun 18, 5:34 AM CDT | TSTM WND DMG | Flint Hill, MO | A COUPLE OF THREE INCH TREE LIMBS BLOWN DOWN. |
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 |
|---|---|---|---|
| Jun 18, 2:44 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 00:00Z, 9.5 hours before the alert went out and 266 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
- 601 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 644 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 27 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
190
WUUS53 KLSX 180930
SVRLSX
MOC007-027-071-073-113-139-151-163-183-219-181030-
/O.NEW.KLSX.SV.W.0337.110618T0930Z-110618T1030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
430 AM CDT SAT JUN 18 2011
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
EASTERN AUDRAIN COUNTY IN CENTRAL MISSOURI...
NORTHEASTERN CALLAWAY COUNTY IN CENTRAL MISSOURI...
FRANKLIN COUNTY IN EAST CENTRAL MISSOURI...
GASCONADE COUNTY IN EAST CENTRAL MISSOURI...
LINCOLN COUNTY IN EAST CENTRAL MISSOURI...
MONTGOMERY COUNTY IN EAST CENTRAL MISSOURI...
EASTERN OSAGE COUNTY IN CENTRAL MISSOURI...
SOUTHERN PIKE COUNTY IN NORTHEAST MISSOURI...
WESTERN ST. CHARLES COUNTY IN EAST CENTRAL MISSOURI...
WARREN COUNTY IN EAST CENTRAL MISSOURI...
* UNTIL 530 AM CDT
* AT 425 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM 6 MILES WEST OF SANTA FE TO SHAMROCK TO 6 MILES NORTHEAST OF
CHAMOIS TO FREEBURG...AND MOVING EAST AT 50 MPH. NICKEL SIZE HAIL
MAY ALSO ACCOMPANY THESE DAMAGING WINDS.
* LOCATIONS IMPACTED INCLUDE...
MONTGOMERY CITY...WELLSVILLE...HERMANN...OWENSVILLE...VANDALIA...
NEW HAVEN...WARRENTON...WRIGHT CITY...WASHINGTON...TROY...UNION...
WENTZVILLE...ST. CLAIR...VILLA RIDGE...LAKE ST. LOUIS...GRAY
SUMMIT...DARDENNE PRAIRIE...ST. PAUL...PACIFIC AND ELSBERRY.
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.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
LAT...LON 3932 9082 3897 9072 3870 9072 3831 9077
3829 9188 3874 9169 3901 9173 3933 9194
TIME...MOT...LOC 0930Z 272DEG 43KT 3934 9187 3900 9164
3873 9161 3832 9179
WIND...HAIL 60MPH 0.88IN
$$
CVKING3 follow-up statements
897
WWUS53 KLSX 180937
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
437 AM CDT SAT JUN 18 2011
MOC007-027-071-073-113-139-151-163-183-219-181030-
/O.CON.KLSX.SV.W.0337.000000T0000Z-110618T1030Z/
CALLAWAY MO-FRANKLIN MO-GASCONADE MO-LINCOLN MO-MONTGOMERY MO-
OSAGE MO-PIKE MO-ST. CHARLES MO-WARREN MO-AUDRAIN MO-
437 AM CDT SAT JUN 18 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
AUDRAIN...EASTERN OSAGE AND NORTHEASTERN CALLAWAY COUNTIES IN CENTRAL
MISSOURI...AND WARREN...WESTERN ST. CHARLES...MONTGOMERY...LINCOLN...
GASCONADE AND FRANKLIN COUNTIES IN EAST CENTRAL MISSOURI...AND
SOUTHERN PIKE COUNTY IN NORTHEAST MISSOURI UNTIL 530 AM CDT...
AT 434 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM SANTA FE TO MONTGOMERY CITY TO 6 MILES SOUTHWEST OF BIG SPRING
TO BELLE...MOVING EAST AT 50 MPH. NICKEL SIZE HAIL MAY ALSO ACCOMPANY
THESE DAMAGING WINDS.
THIS LINE OF THUNDERSTORMS IS PRODUCING SEVERE WIND GUSTS IN EXCESS
OF 60 MPH AND HAS CAUSED TREES AND POWER LINES TO FALL DOWN IN
FULTON. TAKE SHELTER IMMEDIATELY!
LOCATIONS IMPACTED INCLUDE...
MONTGOMERY CITY...WELLSVILLE...HERMANN...OWENSVILLE...VANDALIA...
NEW HAVEN...WARRENTON...WRIGHT CITY...WASHINGTON...TROY...UNION...
WENTZVILLE...ST. CLAIR...VILLA RIDGE...LAKE ST. LOUIS...GRAY
SUMMIT...DARDENNE PRAIRIE...ST. PAUL...PACIFIC AND ELSBERRY.
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.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
LAT...LON 3932 9082 3897 9072 3870 9072 3831 9077
3829 9188 3874 9169 3901 9173 3933 9194
TIME...MOT...LOC 0937Z 272DEG 43KT 3934 9176 3900 9153
3873 9150 3832 9168
WIND...HAIL 60MPH 0.88IN
$$
CVKING303
WWUS53 KLSX 181002
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
502 AM CDT SAT JUN 18 2011
MOC007-027-071-073-113-139-151-163-183-219-181030-
/O.CON.KLSX.SV.W.0337.000000T0000Z-110618T1030Z/
CALLAWAY MO-FRANKLIN MO-GASCONADE MO-LINCOLN MO-MONTGOMERY MO-
OSAGE MO-PIKE MO-ST. CHARLES MO-WARREN MO-AUDRAIN MO-
502 AM CDT SAT JUN 18 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EASTERN
AUDRAIN...EASTERN OSAGE AND NORTHEASTERN CALLAWAY COUNTIES IN CENTRAL
MISSOURI...AND WARREN...WESTERN ST. CHARLES...MONTGOMERY...LINCOLN...
GASCONADE AND FRANKLIN COUNTIES IN EAST CENTRAL MISSOURI...AND
SOUTHERN PIKE COUNTY IN NORTHEAST MISSOURI UNTIL 530 AM CDT...
AT 457 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THESE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM VANDALIA TO 6 MILES WEST OF HAWK POINT TO 5 MILES NORTH OF
TRELOAR TO 5 MILES SOUTH OF ROSEBUD...MOVING EAST AT 50 MPH. NICKEL
SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.
IN ADDITION...AT 443 AM CDT A TRACTOR TRAILER WAS REPORTED BLOWN
OVER ON INTERSTATE 70 NEAR NEW FLORENCE.
A TORNADO WARNING IS ALSO IN EFFECT FOR PART OF THE WARNED AREA.
PLEASE REFER TO THAT BULLETIN FOR MORE INFORMATION.
LOCATIONS IMPACTED INCLUDE...
WARRENTON...WRIGHT CITY...WASHINGTON...TROY...UNION...WENTZVILLE...
ST. CLAIR...VILLA RIDGE...LAKE ST. LOUIS...GRAY SUMMIT...DARDENNE
PRAIRIE...ST. PAUL...PACIFIC...ELSBERRY...NEW HARTFORD...
TRUESDALE...HAWK POINT...BEAUFORT...MARTHASVILLE AND DUTZOW.
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.
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 3932 9082 3897 9072 3870 9072 3831 9077
3829 9188 3874 9169 3901 9173 3933 9194
TIME...MOT...LOC 1000Z 272DEG 43KT 3932 9138 3900 9119
3872 9115 3831 9133
WIND...HAIL 60MPH 0.88IN
$$
BRITT465
WWUS53 KLSX 181030
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
530 AM CDT SAT JUN 18 2011
MOC007-027-071-073-113-139-151-163-183-219-181036-
/O.EXP.KLSX.SV.W.0337.000000T0000Z-110618T1030Z/
CALLAWAY MO-FRANKLIN MO-GASCONADE MO-LINCOLN MO-MONTGOMERY MO-
OSAGE MO-PIKE MO-ST. CHARLES MO-WARREN MO-AUDRAIN MO-
530 AM CDT SAT JUN 18 2011
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN AUDRAIN...EASTERN
OSAGE AND NORTHEASTERN CALLAWAY COUNTIES IN CENTRAL MISSOURI...AND
WARREN...WESTERN ST. CHARLES...MONTGOMERY...LINCOLN...GASCONADE AND
FRANKLIN COUNTIES IN EAST CENTRAL MISSOURI...AND SOUTHERN PIKE COUNTY
IN NORTHEAST MISSOURI WILL EXPIRE AT 530 AM CDT...
THE LINE OF SEVERE THUNDERSTORMS CONTINUES TO MOVE EAST OVER THE
REGION. THE SEVERE THUNDERSTORM WARNING HAS BEEN REISSUED FOR PARTS
OF PIKE...LINCOLN...ST. CHARLES...WARREN AND FRANKLIN COUNTIES UNTIL
615 PM CDT.
ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 8 AM CDT.
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN ST LOUIS.
LAT...LON 3932 9082 3897 9072 3870 9072 3831 9077
3829 9188 3874 9169 3901 9173 3933 9194
TIME...MOT...LOC 1026Z 272DEG 43KT 3931 9098 3899 9079
3871 9075 3830 9093
$$
BRITTThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 3:12 AM CDT | Severe Thunderstorm Warning | LSX | Audrain, Boone, Callaway, Cole, Moniteau, Osage | 63 min |
| Jun 18, 4:00 AM CDT | Severe Thunderstorm Warning | LSX | Audrain, Callaway, Cole, Gasconade, Montgomery, Osage | 45 min |
| Jun 18, 4:56 AM CDT | Tornado Warning | LSX | Lincoln, Montgomery, Saint Charles, Warren | 49 min |
| Jun 18, 5:07 AM CDT | Tornado Warning | LSX | Lincoln, Montgomery, Pike | 38 min |
| Jun 18, 5:10 AM CDT | Severe Thunderstorm Warning | LSX | Marion, Pike, Ralls | 65 min |
| Jun 18, 5:18 AM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Lincoln, Pike, Saint Charles, Saint Louis and 2 more | 57 min |
| Jun 18, 5:30 AM CDT | Tornado Warning | LSX | Lincoln, Pike, Saint Charles | 19 min |
| Jun 18, 5:50 AM CDT | Areal Flood Advisory | LSX | Saint Charles, Saint Louis, City of Saint Louis | 3 hr |
| Jun 18, 6:09 AM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 51 min |
| Jun 18, 7:28 AM CDT | Severe Thunderstorm Warning | LSX | Madison | 16 min |
| Jun 18, 3:57 PM CDT | Flash Flood Watch | LSX | Audrain, Boone, Callaway, Cole, Crawford, Franklin and 17 more | 15 hr |
Nearby
Severe 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.