Alert archive / Missouri / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 319, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 15, 2011, 3:23 AM CDT for Saint Charles County, Saint Louis County, Missouri. It was in force for 41 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 15, 2011, 3:23 AM CDT (08:23 UTC)
- Expired
- Jun 15, 2011, 4:04 AM CDT
- In force
- 41 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
The radar
The St Louis radar (KLSX), 17 km from the middle of the area, began a volume at 08:24 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 15, 3:35 AM CDT | TSTM WND DMG | Cottleville, MO | 8 INCH DIAMETER LIMBS DOWN... IN COTTLEVILLE ON GUTERMUTH RD BETWEEN OFALLON RD AND MOTHERHEAD RD. |
| Jun 15, 3:38 AM CDT | TSTM WND GST 60 | 1 S St. Peters, MO | |
| Jun 15, 3:40 AM CDT | TSTM WND DMG | St. Peters, MO | TREE ON HOME ON GRANADA COURT IN ST. PETERS |
| Jun 15, 3:40 AM CDT | TSTM WND GST 50 | Weldon Spring, MO | AT NWS OFFICE. HEAVY RAIN... 1.00 INCH IN 15 MINUTES. BRIEF HAIL... PEA SIZE OF SMALLER. |
| Jun 15, 3:57 AM CDT | TSTM WND GST 51 | 4 Nne Orchard Farms, MO | AT SET |
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 00:00Z, 8.4 hours before the alert went out and 224 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
- 2 J/kg
- Mixed-layer CIN
- -693 J/kg
- Mixed-layer LCL
- 838 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 168 m²/s²
- 0-3 km storm-relative helicity
- 325 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
421
WUUS53 KLSX 150823
SVRLSX
MOC183-189-150915-
/O.NEW.KLSX.SV.W.0319.110615T0823Z-110615T0915Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
323 AM CDT WED JUN 15 2011
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
ST. CHARLES COUNTY IN EAST CENTRAL MISSOURI...
NORTHERN ST. LOUIS COUNTY IN EAST CENTRAL MISSOURI...
* UNTIL 415 AM CDT
* AT 320 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED NEAR AUGUSTA...OR 9 MILES
NORTHEAST OF WASHINGTON...AND MOVING NORTHEAST AT 45 MPH. NICKEL
SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.
* LOCATIONS IMPACTED INCLUDE...
LAKE ST. LOUIS...DARDENNE PRAIRIE...O'FALLON...WELDON SPRING...
COTTLEVILLE...CHESTERFIELD...ST. PETERS...ST. CHARLES...MARYLAND
HEIGHTS...BRIDGETON...ST. ANN...OVERLAND...WOODSON TERRACE...ST.
JOHN...BEL-RIDGE...HAZELWOOD...BERKELEY...KINLOCH...COOL VALLEY AND
FLORISSANT.
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 3873 9022 3860 9073 3863 9074 3860 9077
3854 9094 3876 9096 3888 9061 3887 9058
3887 9055 3893 9048 3896 9040 3892 9030
3891 9023 3884 9011
TIME...MOT...LOC 0823Z 247DEG 40KT 3864 9083
WIND...HAIL 60MPH 0.88IN
$$
TILLY2 follow-up statements
953
WWUS53 KLSX 150849
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
349 AM CDT WED JUN 15 2011
MOC183-189-150915-
/O.CON.KLSX.SV.W.0319.000000T0000Z-110615T0915Z/
ST. CHARLES MO-ST. LOUIS MO-
349 AM CDT WED JUN 15 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN ST.
LOUIS AND NORTHEASTERN ST. CHARLES COUNTIES UNTIL 415 AM CDT...
AT 347 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
60 MPH. THIS STORM WAS LOCATED NEAR ST. CHARLES...MOVING NORTHEAST
AT 45 MPH. NICKEL SIZE HAIL MAY ALSO ACCOMPANY THESE DAMAGING WINDS.
LOCATIONS IMPACTED INCLUDE...
ST. ANN...HAZELWOOD...FLORISSANT...BLACK JACK...ORCHARD FARMS...
PORTAGE DES SIOUX AND WEST ALTON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MILES PER
HOUR...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR
YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.
&&
LAT...LON 3884 9011 3865 9056 3880 9084 3888 9061
3887 9058 3887 9055 3893 9048 3896 9040
3892 9030 3891 9023
TIME...MOT...LOC 0849Z 242DEG 40KT 3883 9048
WIND...HAIL 60MPH 0.88IN
$$
TILLY700
WWUS53 KLSX 150904
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
404 AM CDT WED JUN 15 2011
MOC183-189-150914-
/O.CAN.KLSX.SV.W.0319.000000T0000Z-110615T0915Z/
ST. CHARLES MO-ST. LOUIS MO-
404 AM CDT WED JUN 15 2011
...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN ST. LOUIS AND
NORTHEASTERN ST. CHARLES COUNTIES IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA. HOWEVER GUSTY WINDS UP TO 45 MPH ARE STILL POSSIBLE WITH THIS
THUNDERSTORM.
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 3884 9011 3865 9056 3880 9084 3888 9061
3887 9058 3887 9055 3893 9048 3896 9040
3892 9030 3891 9023
TIME...MOT...LOC 0904Z 240DEG 40KT 3892 9030
$$
TILLYThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 12:07 AM CDT | Flash Flood Warning | LSX | Lewis | 8 hr |
| Jun 15, 3:29 AM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Montgomery, Saint Charles, Warren | 46 min |
| Jun 15, 3:45 AM CDT | Areal Flood Advisory | LSX | Boone, Callaway, Cole, Franklin, Gasconade, Lincoln and 6 more | 3 hr |
| Jun 15, 4:00 AM CDT | Flash Flood Warning | LSX | Lincoln, Montgomery, Warren | 3 hr |
| Jun 15, 4:02 AM CDT | Severe Thunderstorm Warning | LSX | Lincoln, Montgomery, Pike | 43 min |
| Jun 15, 6:56 AM CDT | Areal Flood Warning | LSX | Lewis | 12 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.