Alert archive / Missouri / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 168, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 4, 2012, 3:33 PM CDT for Lincoln County, Saint Charles County, Missouri; Calhoun County, Illinois. It was in force for 42 min. 22 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 4, 2012, 3:33 PM CDT (20:33 UTC)
- Expired
- Jun 4, 2012, 4:15 PM CDT
- In force
- 42 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Calhoun County, IL, Lincoln County, MO, Saint Charles County, MO
The radar
The St Louis radar (KLSX), 17 km from the middle of the area, began a volume at 20:36 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 4, 3:58 PM CDT | HAIL 0.25 | O'Fallon, MO | |
| Jun 4, 4:04 PM CDT | HAIL 0.25 | St. Peters, MO | |
| Jun 4, 4:06 PM CDT | HAIL 0.88 | 3 Nw St. Peters, MO | MOSTLY PEAS BUT SOME AS LARGE AS NICKELS. |
| Jun 4, 4:08 PM CDT | HAIL 0.88 | 1 E O'Fallon, MO | REPORTED AT INTERSECTION OF INTERSTATE 70 AND T.R. HIGHES BOULEVARD |
| Jun 4, 4:08 PM CDT | HAIL 0.88 | 2 E O'Fallon, MO | |
| Jun 4, 4:09 PM CDT | HAIL 1 | 3 Wnw St. Peters, MO | SPOTTER LOCATED NEAR HIGHWAYS 70 AND 79. HAIL COVERING THE GROUND |
| Jun 4, 4:10 PM CDT | HAIL 0.25 | St. Peters, MO | |
| Jun 4, 4:10 PM CDT | HAIL 1 | St. Peters, MO | |
| Jun 4, 4:11 PM CDT | HAIL 0.7 | 6 Nne Cottleville, MO | |
| Jun 4, 4:12 PM CDT | TSTM WND DMG | St. Charles, MO | POWER LINES DOWNED |
| Jun 4, 4:12 PM CDT | HAIL 0.5 | St. Peters, MO | |
| Jun 4, 4:13 PM CDT | HAIL 0.75 | 2 Nnw Cottleville, MO | |
| Jun 4, 4:13 PM CDT | HAIL 0.88 | St. Charles, MO | ACCOMPANIED BY 35MPH ESTIMATED WINDS. |
| Jun 4, 4:15 PM CDT | HAIL 1 | Cottleville, MO | |
| Jun 4, 4:16 PM CDT | HAIL 0.5 | O'Fallon, MO | INTERSECTION OF N AND MID RIVERS MALL DRIVE. |
| Jun 4, 4:16 PM CDT | HAIL 1 | St. Peters, MO | AT SAINT CHARLES COMMUNITY COLLEGE |
| Jun 4, 4:20 PM CDT | HAIL 0.5 | Harvester, MO | |
| Jun 4, 4:21 PM CDT | HAIL 1.5 | Cottleville, MO | |
| Jun 4, 4:21 PM CDT | HAIL 1.5 | Weldon Spring, MO | INTERSECTION OF HIGHWAY 94 AND OFALLON ROAD. |
| Jun 4, 4:23 PM CDT | HAIL 1 | St. Peters, MO | |
| Jun 4, 4:24 PM CDT | HAIL 0.7 | St. Charles, MO | MOSTLY PEAS BUT SOME AS LARGE AS DIMES. |
| Jun 4, 4:24 PM CDT | HAIL 1.5 | 1 Ne Weldon Spring, MO |
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 4, 3:25 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 8.6 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1375 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 156 m²/s²
- 0-3 km storm-relative helicity
- 231 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted, in the capitals the NWS used until 2016.
600
WUUS53 KLSX 042033
SVRLSX
ILC013-MOC113-183-042115-
/O.NEW.KLSX.SV.W.0168.120604T2033Z-120604T2115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
333 PM CDT MON JUN 4 2012
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN CALHOUN COUNTY IN SOUTHWEST ILLINOIS...
EAST CENTRAL LINCOLN COUNTY IN EAST CENTRAL MISSOURI...
ST. CHARLES COUNTY IN EAST CENTRAL MISSOURI...
* UNTIL 415 PM CDT
* AT 331 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 6 MILES EAST OF
WINFIELD...AND MOVING SOUTH AT 25 MPH.
HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.
* LOCATIONS IMPACTED INCLUDE...
ST. PAUL...LAKE ST. LOUIS...O'FALLON...ST. CHARLES...ST. PETERS...
DARDENNE PRAIRIE...COTTLEVILLE...WELDON SPRING...ORCHARD FARMS...
HARVESTER...DEFIANCE...BEECHVILLE...BRUSSELS...OLD MONROE...DEER
PLAIN...GOLDEN EAGLE...KAMPVILLE AND MATSON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3907 9058 3897 9055 3895 9052 3897 9046
3896 9043 3884 9035 3881 9046 3876 9049
3873 9054 3870 9053 3868 9055 3869 9065
3863 9074 3860 9077 3858 9082 3906 9078
TIME...MOT...LOC 2032Z 354DEG 21KT 3899 9064
HAIL...1.00IN
WIND...60 MPH
$$
BRITT3 follow-up statements
391
WWUS53 KLSX 042049
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
349 PM CDT MON JUN 4 2012
ILC013-MOC113-183-042115-
/O.CON.KLSX.SV.W.0168.000000T0000Z-120604T2115Z/
CALHOUN IL-LINCOLN MO-ST. CHARLES MO-
349 PM CDT MON JUN 4 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR ST.
CHARLES...SOUTHEAST LINCOLN AND SOUTHERN CALHOUN COUNTIES UNTIL
415 PM CDT...
AT 345 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 7 MILES NORTHEAST
OF ST. PAUL...AND MOVING SOUTH AT 25 MPH.
HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.
LOCATIONS IMPACTED INCLUDE...
ST. PAUL...LAKE ST. LOUIS...O'FALLON...ST. CHARLES...ST. PETERS...
DARDENNE PRAIRIE...COTTLEVILLE...WELDON SPRING...ORCHARD FARMS...
HARVESTER...DEFIANCE...KAMPVILLE AND MATSON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.
&&
LAT...LON 3907 9058 3897 9055 3895 9052 3897 9046
3896 9043 3884 9035 3881 9046 3876 9049
3873 9054 3870 9053 3868 9055 3869 9065
3863 9074 3860 9077 3858 9082 3906 9078
TIME...MOT...LOC 2048Z 352DEG 21KT 3889 9062
HAIL...1.00IN
WIND...60 MPH
$$
BRITT101
WWUS53 KLSX 042100
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
400 PM CDT MON JUN 4 2012
MOC113-042109-
/O.CAN.KLSX.SV.W.0168.000000T0000Z-120604T2115Z/
LINCOLN MO-
400 PM CDT MON JUN 4 2012
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL LINCOLN COUNTY IS
CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE THUNDERSTORM
WATCH STILL REMAINS IN EFFECT UNTIL 10 PM CDT.
LAT...LON 3884 9035 3883 9044 3881 9046 3876 9049
3873 9054 3870 9053 3868 9055 3869 9065
3863 9074 3860 9077 3858 9082 3890 9080
3895 9052 3897 9046 3896 9043
TIME...MOT...LOC 2059Z 355DEG 23KT 3880 9068
$$
ILC013-MOC183-042115-
/O.CON.KLSX.SV.W.0168.000000T0000Z-120604T2115Z/
CALHOUN IL-ST. CHARLES MO-
400 PM CDT MON JUN 4 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL ST.
CHARLES AND SOUTHERN CALHOUN COUNTIES UNTIL 415 PM CDT...
AT 355 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR O'FALLON...AND
MOVING SOUTH AT 25 MPH.
HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.
LOCATIONS IMPACTED INCLUDE...
O'FALLON...ST. CHARLES...ST. PETERS...DARDENNE PRAIRIE...
COTTLEVILLE...WELDON SPRING...HARVESTER...DEFIANCE AND MATSON.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PREPARE IMMEDIATELY FOR LARGE HAIL AND DAMAGING WINDS. PEOPLE OUTSIDE
SHOULD MOVE TO A SHELTER...INSIDE A STRONG BUILDING AND AWAY FROM
WINDOWS.
&&
LAT...LON 3884 9035 3883 9044 3881 9046 3876 9049
3873 9054 3870 9053 3868 9055 3869 9065
3863 9074 3860 9077 3858 9082 3890 9080
3895 9052 3897 9046 3896 9043
TIME...MOT...LOC 2059Z 355DEG 23KT 3880 9068
HAIL...1.00IN
WIND...60 MPH
$$
BRITT614
WWUS53 KLSX 042117
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
417 PM CDT MON JUN 4 2012
ILC013-MOC183-042126-
/O.EXP.KLSX.SV.W.0168.000000T0000Z-120604T2115Z/
CALHOUN IL-ST. CHARLES MO-
417 PM CDT MON JUN 4 2012
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL ST. CHARLES AND
SOUTHERN CALHOUN COUNTIES HAS EXPIRED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA. A NEW SEVERE THUNDERSTORM WARNING IS IN EFFECT FOR CENTRAL
ST. CHARLES COUNTY UNTIL 445 PM CDT.
ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 PM CDT.
LAT...LON 3884 9035 3883 9044 3881 9046 3876 9049
3873 9054 3870 9053 3868 9055 3869 9065
3863 9074 3860 9077 3858 9082 3890 9080
3895 9052 3897 9046 3896 9043
TIME...MOT...LOC 2100Z 355DEG 23KT 3879 9068
$$
BRITTThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 4, 4:08 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Saint Charles, Saint Louis | 37 min |
| Jun 4, 4:38 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Saint Louis | 52 min |
| Jun 4, 5:20 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 17 min |
| Jun 4, 2:57 PM CDT | Severe Thunderstorm Warning | LSX | Calhoun, Greene, Jersey | 48 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 2012Severe Thunderstorm Warnings in Illinois, 2012Every severe thunderstorm warning in 2012
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.