Alert archive / Missouri / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 202, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jul 7, 2012, 7:10 PM CDT for Iron County, Saint Francois County, Washington County, Missouri. It was in force for 39 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, 7:10 PM CDT (00:10 UTC)
- Expired
- Jul 7, 2012, 7:49 PM CDT
- In force
- 39 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Iron County, MO, Saint Francois County, MO, Washington County, MO
The radar
The St Louis radar (KLSX), 119 km from the middle of the area, began a volume at 00:12 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 00:00Z, 0.2 hours before the alert went out and 283 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
- 724 J/kg
- Mixed-layer CIN
- -126 J/kg
- Mixed-layer LCL
- 1767 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 28 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
342
WUUS53 KLSX 080010
SVRLSX
MOC093-187-221-080100-
/O.NEW.KLSX.SV.W.0202.120708T0010Z-120708T0100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
710 PM CDT SAT JUL 7 2012
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
IRON COUNTY IN SOUTHEAST MISSOURI...
ST. FRANCOIS COUNTY IN SOUTHEAST MISSOURI...
SOUTHERN WASHINGTON COUNTY IN EAST CENTRAL MISSOURI...
* UNTIL 800 PM CDT
* AT 708 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR PILOT
KNOB...AND MOVING NORTHWEST AT 15 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...
BELLEVIEW...CALEDONIA AND BELGRADE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3755 9078 3760 9077 3760 9083 3782 9105
3792 9077 3760 9053 3759 9055 3758 9055
3751 9073
TIME...MOT...LOC 0010Z 145DEG 15KT 3765 9071
HAIL...1.00IN
WIND...60 MPH
$$
KANOFSKY2 follow-up statements
434
WWUS53 KLSX 080035 RRA
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
735 PM CDT SAT JUL 7 2012
MOC093-187-080045-
/O.CAN.KLSX.SV.W.0202.000000T0000Z-120708T0100Z/
IRON MO-ST. FRANCOIS MO-
735 PM CDT SAT JUL 7 2012
...THE SEVERE THUNDERSTORM WARNING FOR ST. FRANCOIS AND IRON COUNTIES
IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS /MOVED OUT OF THE WARNED
AREA.
LAT...LON 3781 9081 3774 9085 3775 9098 3782 9105
3787 9092
TIME...MOT...LOC 0035Z 112DEG 17KT 3778 9090
$$
MOC221-080100-
/O.CON.KLSX.SV.W.0202.000000T0000Z-120708T0100Z/
WASHINGTON MO-
735 PM CDT SAT JUL 7 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL
WASHINGTON COUNTY UNTIL 800 PM CDT...
AT 734 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 10 MILES EAST OF
COURTOIS...AND MOVING WEST AT 20 MPH.
HAZARD...60 MPH WIND GUSTS.
SOURCE...LAW ENFORCEMENT WHERE REPORTS WERE SUBMITTED OF TREES AND
POWER LINES DOWNED IN PILOT KNOB.
IMPACT...MINOR TREE DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER
BROKEN.
LOCATIONS IMPACTED INCLUDE...
MAINLY RURAL AREAS OF SOUTHERN WASHINGTON COUNTY.
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 3781 9081 3774 9085 3775 9098 3782 9105
3787 9092
TIME...MOT...LOC 0035Z 112DEG 17KT 3778 9090
HAIL...<.75IN
WIND...60 MPH
$$
TES185
WWUS53 KLSX 080049
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
749 PM CDT SAT JUL 7 2012
MOC221-080059-
/O.CAN.KLSX.SV.W.0202.000000T0000Z-120708T0100Z/
WASHINGTON MO-
749 PM CDT SAT JUL 7 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL WASHINGTON
COUNTY IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
HOWEVER GUSTY WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM.
TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN ST LOUIS.
LAT...LON 3781 9081 3774 9085 3775 9098 3782 9105
3787 9092
TIME...MOT...LOC 0049Z 112DEG 17KT 3780 9098
$$
TESThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 7, 7:03 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis | 42 min |
| Jul 7, 7:06 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 32 min |
| Jul 7, 7:18 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson, Saint Louis | 27 min |
| Jul 7, 7:58 PM CDT | Severe Thunderstorm Warning | LSX | Jefferson | 47 min |
| Jul 7, 8:49 PM CDT | Severe Thunderstorm Warning | LSX | Washington | 26 min |
| Jul 8, 1:36 PM CDT | Severe Thunderstorm Warning | LSX | Osage | 39 min |
| Jul 8, 2:10 PM CDT | Severe Thunderstorm Warning | LSX | Osage | 28 min |
| Jul 8, 3:41 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Washington | 49 min |
| Jul 8, 3:53 PM CDT | Severe Thunderstorm Warning | LSX | Franklin | 37 min |
| Jul 8, 4:24 PM CDT | Severe Thunderstorm Warning | LSX | Franklin | 19 min |
| Jul 8, 5:57 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis, City of Saint Louis | 27 min |
| Jul 8, 6:49 PM CDT | Severe Thunderstorm Warning | LSX | Saint Louis, City of Saint Louis | 41 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.