Alert archive / Missouri / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 257, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Sep 5, 2012, 6:36 AM CDT for Lewis County, Marion County, Ralls County, Missouri; Adams County, Brown County, Pike County, Illinois. It was in force for 30 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 5, 2012, 6:36 AM CDT (11:36 UTC)
- Expired
- Sep 5, 2012, 7:06 AM CDT
- In force
- 30 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Adams County, IL, Brown County, IL, Pike County, IL, Lewis County, MO, Marion County, MO, Ralls County, MO
The radar
The Lincoln radar (KILX), 124 km from the middle of the area, began a volume at 11:39 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.
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 11.6 hours before the alert went out and 184 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
- 1890 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 1662 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- -23 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.9
The text
As transmitted, in the capitals the NWS used until 2016.
019
WUUS53 KLSX 051136
SVRLSX
ILC001-009-149-MOC111-127-173-051215-
/O.NEW.KLSX.SV.W.0257.120905T1136Z-120905T1215Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
636 AM CDT WED SEP 5 2012
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
ADAMS COUNTY IN WEST CENTRAL ILLINOIS...
BROWN COUNTY IN WEST CENTRAL ILLINOIS...
NORTHERN PIKE COUNTY IN WEST CENTRAL ILLINOIS...
SOUTHEASTERN LEWIS COUNTY IN NORTHEAST MISSOURI...
EASTERN MARION COUNTY IN NORTHEAST MISSOURI...
NORTHEASTERN RALLS COUNTY IN NORTHEAST MISSOURI...
* UNTIL 715 AM CDT
* AT 634 AM CDT...A LINE OF SEVERE THUNDERSTORMS WAS LOCATED ALONG A
LINE EXTENDING FROM LITTLETON TO MAYWOOD...AND MOVING SOUTHEAST AT
35 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...OBSERVATION AT QUINCY AIRPORT OF 66 MPH.
IMPACT...MINOR TREE DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER
BROKEN.
* LOCATIONS IMPACTED INCLUDE...
QUINCY...PALMYRA...HANNIBAL...CLAYTON...MOUNT STERLING...
BUCKHORN...PAYSON...FALL CREEK...BEVERLY...BARRY...NEW LONDON...
COLUMBUS...BURTON...MOUND STATION...MARBLEHEAD...RIPLEY...ADAMS...
KELLERVILLE...LIBERTY AND COOPERTOWN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
WIND DAMAGE WITH THESE STORMS WILL OCCUR BEFORE ANY RAIN OR
LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER.
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.
&&
LAT...LON 4011 9090 4011 9070 4008 9070 4008 9067
4005 9067 4003 9065 4003 9060 3999 9060
3998 9055 3990 9055 3987 9058 3983 9056
3981 9057 3956 9149 3998 9162 4018 9091
TIME...MOT...LOC 1136Z 328DEG 29KT 4017 9057 3992 9151
HAIL...<.75IN
WIND...60 MPH
$$
CVKING2 follow-up statements
095
WWUS53 KLSX 051154
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
654 AM CDT WED SEP 5 2012
MOC111-051203-
/O.CAN.KLSX.SV.W.0257.000000T0000Z-120905T1215Z/
LEWIS MO-
654 AM CDT WED SEP 5 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LEWIS COUNTY IS
CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE
WARNED AREA.
LAT...LON 4011 9070 4008 9070 4008 9067 4005 9067
4003 9065 4003 9060 3999 9060 3998 9055
3990 9055 3987 9058 3983 9056 3981 9058
3956 9149 3990 9159 4011 9090
TIME...MOT...LOC 1153Z 328DEG 29KT 4005 9048 3980 9142
$$
ILC001-009-149-MOC127-173-051215-
/O.CON.KLSX.SV.W.0257.000000T0000Z-120905T1215Z/
PIKE IL-ADAMS IL-BROWN IL-MARION MO-RALLS MO-
654 AM CDT WED SEP 5 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR BROWN...
SOUTHERN ADAMS AND NORTHERN PIKE COUNTIES IN WEST CENTRAL ILLINOIS...
AND NORTHEASTERN RALLS AND EASTERN MARION COUNTIES IN NORTHEAST
MISSOURI UNTIL 715 AM CDT...
AT 650 AM CDT...A LINE OF SEVERE THUNDERSTORMS WAS LOCATED ALONG A
LINE EXTENDING FROM 5 MILES SOUTHEAST OF RUSHVILLE TO 5 MILES EAST OF
PALMYRA...AND MOVING SOUTHEAST AT 35 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...TRAINED WEATHER SPOTTERS AND QUINCY AIRPORT OBSERVATION.
IMPACT...MINOR TREE DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER
BROKEN.
LOCATIONS IMPACTED INCLUDE...
HANNIBAL...BUCKHORN...PAYSON...FALL CREEK...BEVERLY...BARRY...NEW
LONDON...COOPERTOWN...RICHFIELD...PLAINVILLE...SEEHORN...KINGSTON...
VERSAILLES...FISHHOOK...HULL...ILASCO...KINDERHOOK...CHAMBERSBURG...
SAVERTON AND PERRY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
WIND DAMAGE WITH THESE STORMS WILL OCCUR BEFORE ANY RAIN OR
LIGHTNING. DO NOT WAIT FOR THE SOUND OF THUNDER BEFORE TAKING COVER.
SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS.
&&
LAT...LON 4011 9070 4008 9070 4008 9067 4005 9067
4003 9065 4003 9060 3999 9060 3998 9055
3990 9055 3987 9058 3983 9056 3981 9058
3956 9149 3990 9159 4011 9090
TIME...MOT...LOC 1153Z 328DEG 29KT 4005 9048 3980 9142
HAIL...<.75IN
WIND...60 MPH
$$
CVKING328
WWUS53 KLSX 051206
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
706 AM CDT WED SEP 5 2012
ILC001-009-149-MOC127-173-051216-
/O.CAN.KLSX.SV.W.0257.000000T0000Z-120905T1215Z/
PIKE IL-ADAMS IL-BROWN IL-MARION MO-RALLS MO-
706 AM CDT WED SEP 5 2012
...THE SEVERE THUNDERSTORM WARNING FOR BROWN...SOUTHERN ADAMS AND
NORTHERN PIKE COUNTIES IN WEST CENTRAL ILLINOIS...AND NORTHEASTERN
RALLS AND EASTERN MARION COUNTIES IN NORTHEAST MISSOURI IS
CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS WEAKENED ACROSS
THE WARNED AREA.
LAT...LON 4011 9070 4008 9070 4008 9067 4005 9067
4003 9065 4003 9060 3999 9060 3998 9055
3990 9055 3987 9058 3983 9056 3981 9058
3956 9149 3990 9159 4011 9090
TIME...MOT...LOC 1206Z 328DEG 29KT 3996 9040 3972 9134
$$
CVKINGThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 5, 3:07 AM CDT | Heat Advisory | LSX | Iron, Jefferson, Madison, Reynolds, Saint Charles, Sainte Genevieve and 4 more | 12 hr |
| Sep 5, 7:56 AM CDT | Severe Thunderstorm Warning | LSX | Greene, Macoupin, Montgomery | 64 min |
| Sep 5, 8:38 AM CDT | Severe Thunderstorm Warning | LSX | Fayette, Montgomery | 37 min |
| Sep 5, 9:08 AM CDT | Tornado Warning | LSX | Fayette, Montgomery | 37 min |
| Sep 5, 9:40 AM CDT | Severe Thunderstorm Warning | LSX | Fayette | 50 min |
| Sep 5, 10:00 AM CDT | Severe Thunderstorm Warning | LSX | Clinton, Fayette, Marion | 48 min |
| Sep 5, 10:23 AM CDT | Severe Thunderstorm Warning | LSX | Monroe, Saint Clair | 32 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.