Alert archive / Missouri / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 222, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jul 27, 2012, 3:23 PM CDT for Sainte Genevieve County, Saint Francois County, Missouri. It was in force for 22 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 27, 2012, 3:23 PM CDT (20:23 UTC)
- Expired
- Jul 27, 2012, 3:45 PM CDT
- In force
- 22 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Saint Francois County, MO, Sainte Genevieve County, MO
The radar
The St Louis radar (KLSX), 106 km from the middle of the area, began a volume at 20:25 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
Lincoln, IL (KILX), launched 12:00Z, 8.4 hours before the alert went out and 300 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
- 970 J/kg
- Mixed-layer CIN
- -125 J/kg
- Mixed-layer LCL
- 1296 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 152 m²/s²
- 0-3 km storm-relative helicity
- 173 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.9
The text
As transmitted, in the capitals the NWS used until 2016.
063
WUUS53 KLSX 272023
SVRLSX
MOC186-187-272045-
/O.NEW.KLSX.SV.W.0222.120727T2023Z-120727T2045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
323 PM CDT FRI JUL 27 2012
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN STE. GENEVIEVE COUNTY IN SOUTHEAST MISSOURI...
EASTERN ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI...
* UNTIL 345 PM CDT
* AT 321 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 6 MILES NORTH OF
FARMINGTON...AND MOVING EAST-SOUTHEAST AT 35 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...RADAR INDICATED.
IMPACT...MINOR TREE DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER
BROKEN.
* LOCATIONS IMPACTED INCLUDE...
WEINGARTEN...COFFMAN...MINNITH AND RIVER AUX VASES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
TO REPORT SEVERE WEATHER CONTACT YOUR NEAREST LAW ENFORCEMENT AGENCY.
THEY WILL SEND YOUR REPORT TO THE NATIONAL WEATHER SERVICE IN ST
LOUIS.
&&
LAT...LON 3780 9053 3797 9046 3786 9002 3767 9010
3767 9011
TIME...MOT...LOC 2023Z 289DEG 30KT 3785 9038
HAIL...<.75IN
WIND...60 MPH
$$
GOSSELIN1 follow-up statement
292
WWUS53 KLSX 272041
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
341 PM CDT FRI JUL 27 2012
MOC186-187-272051-
/O.EXP.KLSX.SV.W.0222.000000T0000Z-120727T2045Z/
STE. GENEVIEVE MO-ST. FRANCOIS MO-
341 PM CDT FRI JUL 27 2012
...THE SEVERE THUNDERSTORM WARNING FOR ST. FRANCOIS AND SOUTHERN STE.
GENEVIEVE COUNTIES WILL EXPIRE AT 345 PM CDT...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
LAT...LON 3780 9053 3797 9046 3786 9002 3767 9010
3767 9011
TIME...MOT...LOC 2041Z 289DEG 30KT 3780 9020
$$
GOSSELINThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 5:38 PM CDT | Severe Thunderstorm Warning | LSX | Reynolds | 21 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.