Alert archive / Missouri / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 198, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jul 7, 2012, 6:27 PM CDT for Saint Francois County, Missouri. It was in force for 33 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
- Jul 7, 2012, 6:27 PM CDT (23:27 UTC)
- Expired
- Jul 7, 2012, 7:00 PM CDT
- In force
- 33 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Saint Francois County, MO
The radar
The St Louis radar (KLSX), 108 km from the middle of the area, began a volume at 23:30 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.
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 11.5 hours before the alert went out and 298 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
- 1058 J/kg
- Mixed-layer CIN
- -152 J/kg
- Mixed-layer LCL
- 2009 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 85 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
479
WUUS53 KLSX 072327
SVRLSX
MOC187-080000-
/O.NEW.KLSX.SV.W.0198.120707T2327Z-120708T0000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
627 PM CDT SAT JUL 7 2012
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI...
* UNTIL 700 PM CDT
* AT 621 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR BISMARCK...
AND MOVING WEST AT 10 MPH.
HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.
SOURCE...TRAINED WEATHER SPOTTERS RECENTLY REPORTED 65 MPH
WINDS...TREE DAMAGE...AND QUARTER SIZE HAIL IN DOE RUN.
IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.
* LOCATIONS IMPACTED INCLUDE...
BISMARCK AND IRON MOUNTAIN.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3766 9065 3774 9065 3775 9064 3778 9064
3782 9062 3778 9045 3766 9051
TIME...MOT...LOC 2326Z 104DEG 10KT 3774 9061
HAIL...1.00IN
WIND...60 MPH
$$
KANOFSKY1 follow-up statement
287
WWUS53 KLSX 072351
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
651 PM CDT SAT JUL 7 2012
MOC187-080000-
/O.EXP.KLSX.SV.W.0198.000000T0000Z-120708T0000Z/
ST. FRANCOIS MO-
651 PM CDT SAT JUL 7 2012
...THE SEVERE THUNDERSTORM WARNING FOR ST. FRANCOIS COUNTY WILL
EXPIRE AT 700 PM CDT...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED OUT OF
THE WARNED AREA.
LAT...LON 3766 9065 3774 9065 3775 9064 3778 9064
3782 9062 3778 9045 3766 9051
TIME...MOT...LOC 2350Z 104DEG 10KT 3776 9069
$$
KANOFSKYThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 5:01 PM CDT | Severe Thunderstorm Warning | LSX | Franklin | 13 min |
| Jul 7, 5:29 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Gasconade, Warren | 29 min |
| Jul 7, 5:49 PM CDT | Severe Thunderstorm Warning | LSX | Saint Francois | 41 min |
| Jul 7, 6:19 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Saint Francois, Washington | 41 min |
| Jul 7, 6:46 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis | 44 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 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.