Alert archive / Missouri / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 318, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Sep 25, 2012, 6:22 PM CDT for Jefferson County, Saint Louis County, City of Saint Louis, Missouri. It was in force for 38 min. 2 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
- Sep 25, 2012, 6:22 PM CDT (23:22 UTC)
- Expired
- Sep 25, 2012, 7:00 PM CDT
- In force
- 38 min
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties City of Saint Louis, MO, Jefferson County, MO, Saint Louis County, MO
The radar
The St Louis radar (KLSX), 40 km from the middle of the area, began a volume at 23:25 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 25, 6:26 PM CDT | HAIL 0.25 | Cedar Hill, MO | |
| Sep 25, 6:44 PM CDT | HAIL 1 | Barnhart, MO |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
Did it verify
Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 22 minutes after it went out.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Sep 25, 5:05 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 11.4 hours before the alert went out and 240 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
- 221 J/kg
- Mixed-layer CIN
- -192 J/kg
- Mixed-layer LCL
- 560 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 134 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.7
The text
As transmitted, in the capitals the NWS used until 2016.
472
WUUS53 KLSX 252322
SVRLSX
MOC099-189-510-260000-
/O.NEW.KLSX.SV.W.0318.120925T2322Z-120926T0000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
622 PM CDT TUE SEP 25 2012
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN JEFFERSON COUNTY IN EAST CENTRAL MISSOURI...
SOUTHERN ST. LOUIS COUNTY IN EAST CENTRAL MISSOURI...
SOUTHERN ST. LOUIS CITY IN EAST CENTRAL MISSOURI...
* UNTIL 700 PM CDT
* AT 616 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR HOUSE
SPRINGS...AND MOVING EAST AT 35 MPH.
HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.
SOURCE...TRAINED WEATHER SPOTTERS. QUARTER SIZE HAIL IS BEING
REPORTED IN CEDAR HILL WITH THIS STORM.
IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.
* LOCATIONS IMPACTED INCLUDE...
ANTONIA...MURPHY...PEVELY...BARNHART...SUNSET HILLS...ARNOLD...
CRESTWOOD...OAKVILLE...LAKESHIRE...AFFTON...MEHLVILLE...LEMAY AND
KIMMSWICK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 3860 9019 3857 9023 3852 9027 3845 9028
3837 9036 3833 9037 3828 9037 3826 9068
3845 9066 3864 9018
TIME...MOT...LOC 2320Z 260DEG 31KT 3837 9050
HAIL...1.00IN
WIND...60 MPH
$$
BRITT2 follow-up statements
012
WWUS53 KLSX 252340
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
640 PM CDT TUE SEP 25 2012
MOC510-252349-
/O.CAN.KLSX.SV.W.0318.000000T0000Z-120926T0000Z/
ST. LOUIS CITY MO-
640 PM CDT TUE SEP 25 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN ST. LOUIS CITY COUNTY
IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
LAT...LON 3847 9051 3852 9027 3845 9028 3837 9036
3833 9037 3828 9037 3826 9062
TIME...MOT...LOC 2339Z 265DEG 22KT 3834 9045
$$
MOC099-189-260000-
/O.CON.KLSX.SV.W.0318.000000T0000Z-120926T0000Z/
JEFFERSON MO-ST. LOUIS MO-
640 PM CDT TUE SEP 25 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTH CENTRAL
ST. LOUIS AND NORTHEASTERN JEFFERSON COUNTIES UNTIL 700 PM CDT...
AT 635 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR ANTONIA...AND
MOVING EAST AT 25 MPH.
HAZARD...PING PONG BALL SIZE HAIL AND 60 MPH WIND GUSTS.
SOURCE...TRAINED WEATHER SPOTTERS. PING PONG SIZE HAIL WAS REPORTED
WITH THIS STORM WHEN IT MOVED OVER CEDAR HILL.
IMPACT...DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE DAMAGE...
WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.
LOCATIONS IMPACTED INCLUDE...
BARNHART...PEVELY...ARNOLD...OAKVILLE...MEHLVILLE AND KIMMSWICK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS STORM IS PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY
STRUCTURE AND STAY AWAY FROM WINDOWS.
&&
LAT...LON 3847 9051 3852 9027 3845 9028 3837 9036
3833 9037 3828 9037 3826 9062
TIME...MOT...LOC 2339Z 265DEG 22KT 3834 9045
HAIL...1.50IN
WIND...60 MPH
$$
BRITT680
WWUS53 KLSX 252358
SVSLSX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
658 PM CDT TUE SEP 25 2012
MOC099-189-260007-
/O.EXP.KLSX.SV.W.0318.000000T0000Z-120926T0000Z/
JEFFERSON MO-ST. LOUIS MO-
658 PM CDT TUE SEP 25 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL ST. LOUIS AND
NORTHEASTERN JEFFERSON COUNTIES WILL EXPIRE AT 700 PM CDT...
THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED
AREA.
A NEW SEVERE THUNDERSTORM WARNING HAS BEEN ISSUED FOR PARTS OF ST.
LOUIS AND JEFFERSON COUNTIES FOR ANOTHER SEVERE THUNDERSTORM UNTIL
745 PM CDT.
ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A SEVERE
THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 11 PM CDT.
LAT...LON 3847 9051 3852 9027 3845 9028 3837 9036
3833 9037 3828 9037 3826 9062
TIME...MOT...LOC 2357Z 265DEG 22KT 3835 9031
$$
BRITTWhat forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS St. Louis, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 25, 4:06 PM CDT, 2 hours 16 minutes earlier.
Area forecast discussion, Sep 25, 4:06 PM CDT, 2 hours 16 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ST LOUIS MO 406 PM CDT TUE SEP 25 2012 .SHORT TERM... ISSUED AT 354 PM CDT TUE SEP 25 2012 (LATE THIS AFTERNOON AND TONIGHT) THE PRIMARY FCST ISSUE FOR LATE THIS AFTN AND TONIGHT IS CONVECTIVE TRENDS. ONGOING ISO-SCT CONVECTION MAY INCREASE IN COVERAGE LATER THIS AFTN...ESPECIALLY ACROSS SRN MO AND SRN IL WHERE DECREASED CLOUD COVER WAS CONTRIBUTING TO MLCAPE VALUES IN EXCESS OF 2000 J/KG WITH LITTLE CINH NOTED ON SPC MESOANALYSIS PAGE AT 19Z. ALTHOUGH ADDITIONAL DVLPMT HAS BEEN SLOW TO INITIATE...INSTABILITY AND SHEAR PARAMETERS WILL BE SUFFICIENT FOR SEVERE THUNDERSTORMS. A CDFNT/QUASISTATIONARY BDRY WAS LOCATED ACROSS NRN MO AND SRN IA AT 20Z. SIMILAR TO YDY...MODELS DEPICT A BROAD SWLY LLJ DVLPG OVERNIGHT AND BECOMING ORIENTED NEARLY PARALLEL TO THIS BDRY ALONG WITH PW VALUES OF 1.3 TO 1.5 INCHES...CORFIDI VECTORS POINTED UPSTREAM BY 03Z WED...AND SEVERAL HUNDRED J/KG OF MUCAPE THROUGH 12Z WED. THIS CONFIGURATION WILL LEAD TO AN ELONGATED AREA OF PCPN NEAR THE QUASISTATIONARY BDRY WITH CONVECTIVE ELEMENTS CONTINUOUSLY DVLPG AND MOVING ENEWD WITHIN THE OVERALL BAND OF PCPN. PCPN SHOULD PERSIST INTO AT LEAST PART OF TOMORROW MORNING. KANOFSKY && .LONG TERM... ISSUED AT 354 PM CDT TUE SEP 25 2012 (WEDNESDAY THROUGH TUESDAY) WIDESPREAD CONVECTION EXPECTED ON WED WITH HEAVY RAINFALL POSSIBLE AS FRONT SINKS SLOWLY SWD THROUGH OUR AREA. WEAK SHORTWAVES WILL ALSO BE MOVING EWD THROUGH OUR AREA WITH THE MODELS DEPICTING UPPER LEVEL DIVERGENCE OVER THE FORECAST AREA AS WELL IN RIGHT ENTRANCE REGION OF UPPER LEVEL JET STREAK OVER THE GREAT LAKES REGION. AS THE SYNOPTIC FRONT ALONG WITH ANY EFFECTIVE BOUNDARIES FROM MCS ACTIVITY OR SMALL CONVECTIVE CLUSTERS SHIFTS SLOWLY SWD THE POTENTIAL FOR CONVECTION SHOULD GRADUALLY SHIFT SWD WED NGT. BY THU MRNG THE NEARLY E-W FRONT SHOULD SHIFT SWD INTO SRN MO AND SRN IL. ON THU MOST OF THE PRECIPITATION SHOULD BE CONFINED TO SERN MO AND SWRN IL WITH A SFC RIDGE EXTENDING FROM THE GREAT LAKES REGION SW INTO NERN MO. ON THU NGT AND FRI THE ECMWF MODEL SHIFTS THE FRONT BACK NWD A TAD AS A SHORTWAVE APPROACHES AND RAMPS UP CONVECTION AGAIN FROM LATE THU NGT THROUGH FRI. THE GFS KEEPS THE FRONT SHIFTING SLOWLY SWD AND CONFINES THE PRECIPITATION TO SERN MO AND SWRN IL THU NGT AND FRI WITH LIGHTER QPF THAN THE ECMWF. WILL PUT THE HIGHEST POPS THU NGT AND FRI OVER THE SRN PORTION OF OUR FORECAST AREA BUT WILL KEEP LESSER POPS FURTHER N DUE TO THE UNCERTAINTY WITH THE PROGRESSION OF THE FRONT AND THE NWD EXTENT OF THE CONVECTION. MAY STILL HAVE LINGERING SHOWERS ACROSS SERN MO AND SWRN IL FRI NGT...BUT BY SAT THE FRONT SHIFTS WELL S OF OUR AREA AS MID-UPPER LEVEL TROFFING DEVELOPS OVER THE GREAT LAKES REGION. WITH N-NWLY MID-UPPER LEVEL FLOW OVER THE AREA THIS WEEKEND ALONG WITH WEAK SFC RIDGING THE WEEKEND SHOULD BE DRY AND FAIRLY COOL. THE ECMWF MODEL IS COOLER EARLY NEXT WEEK...MON AND TUE AS IT DEVELOPS ANOTHER UPPER LEVEL TROUGH JUST S OF OUR AREA ...WHILE THE GFS MOVES THE UPPER TROUGH E OF OUR AREA AND DEVELOPS UPPER LEVEL RIDGING OVER THE NRN PLAINS. IN EITHER CASE THE DRY WEATHER SHOULD CONTINUE FOR THE REST OF THE EXTENDED FORECAST. GKS && .AVIATION... ISSUED AT 1241 PM CDT TUE SEP 25 2012 INSTABILITY IS INCREASING ALONG AND SOUTH OF BAND OF ELEVATED SHOWERS AND THUNDERSTORMS CURRENTLY LOCATED FROM KCOU TO NORTH OF K3LF. WINDS ARE VEERING TO THE SW AHEAD OF THIS FEATURE WITH SOME BREAKS IN THE MIDLEVEL CLOUDS INCREASING INSTABILITY. BELIEVE AT LEAST ISOLATED/SCATTERRED SFC-BASED STORMS WILL DEVELOP SOUTH OF THIS LINE AND COULD AFFECT METRO TAF SITES. PUT IN A VCTS PREVAILING GROUP AND A TEMPO FROM 2000 UTC TO 2400 UTC FOR -TSRA TO ACCOUNT FOR THESE TRENDS. SITUATION IS MORE MUDDIED OVERNIGHT BUT AMS SHOULD STABILIZE AND BELIEVE THERE WILL BE A LULL SOMETIME THIS EVENING BEFORE LLJ FORCING INCREASES THREAT OF SHOWERS AND POSSIBLY ELEVATED STORMS TONIGHT. MODELS ALSO HINTING AT LL CLOUDINESS POSSIBLY IFR BUT ONLY HINTED AT THIS POSSIBILITY WITH HIGH END MVFR CEILINGS IN -SHRA DUE TO TOO MUCH UNCERTAINTY. WINDS SHOULD BECOME VARIABLE LATE THIS EVENING FROM NORTH TO SOUTH AS FRONT BECOMES STATIONARY. SPECIFICS FOR KSTL... INSTABILITY IS INCREASING ALONG AND SOUTH OF BAND OF ELEVATED SHOWERS AND THUNDERSTORMS CURRENTLY LOCATED FROM KCOU TO NORTH OF K3LF. WINDS ARE SLOWLY VEERING TO THE SW AHEAD OF THIS FEATURE WITH SOME BREAKS IN THE MIDLEVEL CLOUDS INCREASING INSTABILITY. BELIEVE AT LEAST ISOLATED/SCATTERRED SFC-BASED STORMS WILL DEVELOP SOUTH OF THIS LINE AND COULD AFFECT KSTL. PUT IN A VCTS PREVAILING GROUP AND A TEMPO FROM 2000 UTC TO 2400 UTC FOR -TSRA TO ACCOUNT FOR THESE TRENDS. SITUATION IS MORE MUDDIED OVERNIGHT BUT AMS SHOULD STABILIZE AND BELIEVE THERE WILL BE A LULL SOMETIME THIS EVENING BEFORE LLJ FORCING INCREASES THREAT OF SHOWERS AND POSSIBLY ELEVATED STORMS TONIGHT. MODELS ALSO HINTING AT LL CLOUDINESS POSSIBLY IFR BUT ONLY HINTED AT THIS POSSIBILITY WITH HIGH END MVFR CEILINGS IN -SHRA DUE TO TOO MUCH UNCERTAINTY. WINDS SHOULD BECOME LIGHT/VARIABLE OVERNIGHT TONIGHT AS FRONT BECOMES STATIONARY OVERHEAD. GOSSELIN && .LSX WATCHES/WARNINGS/ADVISORIES... MO...NONE. IL...NONE. && WFO LSX
Hazardous weather outlook, Sep 25, 5:13 PM CDT, 1 hour 9 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE ST LOUIS MO 513 PM CDT TUE SEP 25 2012 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-261200- GREENE IL-MACOUPIN IL-MONTGOMERY IL-BOND IL-FAYETTE IL-CLINTON IL- MARION IL-WASHINGTON IL-RANDOLPH IL-ADAMS IL-BROWN IL-PIKE IL- CALHOUN IL-JERSEY IL-MADISON IL-ST. CLAIR IL-MONROE IL-KNOX MO- LEWIS MO-SHELBY MO-MARION MO-MONROE MO-RALLS MO-PIKE MO-BOONE MO- AUDRAIN MO-MONITEAU MO-COLE MO-OSAGE MO-CALLAWAY MO-MONTGOMERY MO- LINCOLN MO-GASCONADE MO-WARREN MO-ST. CHARLES MO-FRANKLIN MO- ST. LOUIS MO-ST. LOUIS CITY MO-JEFFERSON MO-CRAWFORD MO- WASHINGTON MO-ST. FRANCOIS MO-STE. GENEVIEVE MO-IRON MO- MADISON MO-REYNOLDS MO- 513 PM CDT TUE SEP 25 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN AND CENTRAL MISSOURI AS WELL AS WEST CENTRAL AND SOUTHWEST ILLINOIS. .DAY ONE...TONIGHT THUNDERSTORMS ARE EXPECTED TO CONTINUE TONIGHT. SOME THUNDERSTORMS WILL BE SEVERE PRODUCING TORNADOES...LARGE HAIL AND DAMAGING WINDS IN EXCESS OF 60 MPH. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THE CHANCE OF THUNDERSTORMS WILL CONTINUE WEDNESDAY THROUGH FRIDAY NIGHT. ON WEDNESDAY AFTERNOON...A FEW OF THE STRONGER STORMS COULD PRODUCE HAIL AND GUSTY WINDS. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ASKED TO RELAY REPORTS OF SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE. TILLY
In the hours before
Local storm report, Sep 25, 6:09 PM CDT, 13 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
609 PM CDT TUE SEP 25 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0602 PM TSTM WND GST MEHLVILLE 38.50N 90.32W
09/25/2012 E55 MPH ST. LOUIS MO TRAINED SPOTTER
ONE AND ONE HALF INCH LIMB SNAPPED OFF PINE TREE
&&
KARLZLocal storm report, Sep 25, 6:13 PM CDT, 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
613 PM CDT TUE SEP 25 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0535 PM TORNADO 3 E OKAWVILLE 38.43N 89.50W
09/25/2012 WASHINGTON IL TRAINED SPOTTER
30 FOOT BY 80 FOOT METAL SHED DESTROYED. 3 FARM HOUSES
DAMAGED WITH PARTIAL REMOVAL OF ROOFS. GARAGE DOORS
CAVED IN AND DAMAGE TO SIDING.
&&
FUCHSLocal storm report, Sep 25, 6:17 PM CDT, 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
617 PM CDT TUE SEP 25 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0500 PM HAIL WENTZVILLE 38.81N 90.86W
09/25/2012 E1.25 INCH ST. CHARLES MO TRAINED SPOTTER
&&
FUCHSLocal storm report, Sep 25, 6:18 PM CDT, 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
618 PM CDT TUE SEP 25 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0617 PM HAIL KIRKWOOD 38.58N 90.42W
09/25/2012 M0.70 INCH ST. LOUIS MO TRAINED SPOTTER
AT BIG BEND AND LOCKWOOD
&&
KARLZSpecial weather statement, Sep 25, 6:18 PM CDT, 4 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE ST LOUIS MO 618 PM CDT TUE SEP 25 2012 ILZ070-260000- MARION IL- 618 PM CDT TUE SEP 25 2012 ...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN MARION COUNTY UNTIL 700 PM CDT... AT 616 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR WAMAC...OR NEAR CENTRALIA...MOVING EAST AT 30 MPH. HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THIS STORM...ALONG WITH HEAVY RAIN AND FREQUENT DANGEROUS LIGHTNING. LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE... HELM... IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A STURDY BUILDING. IN ADDITION...THIS STORM MAY INTENSIFY...AND A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THIS AREA. BE CERTAIN TO MONITOR LOCAL RADIO AND TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE. TORRENTIAL RAIN...WHICH MAY FLOOD LOW LYING AREAS SUCH AS DITCHES AND UNDERPASSES...IS ALSO LIKELY. DO NOT DRIVE YOUR VEHICLE ON A FLOODED ROADWAY. TES
Local storm report, Sep 25, 6:21 PM CDT, 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
621 PM CDT TUE SEP 25 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0620 PM HAIL CEDAR HILL 38.36N 90.64W
09/25/2012 M1.00 INCH JEFFERSON MO TRAINED SPOTTER
MARBLE TO QUARTER SIZE
&&
KARLZThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 25, 4:31 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Warren | 44 min |
| Sep 25, 5:09 PM CDT | Severe Thunderstorm Warning | LSX | Saint Charles, Saint Louis | 51 min |
| Sep 25, 5:48 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Saint Louis, City of Saint Louis | 42 min |
| Sep 25, 6:16 PM CDT | Severe Thunderstorm Warning | LSX | Callaway, Cole, Osage | 44 min |
| Sep 25, 6:45 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Gasconade | 45 min |
| Sep 25, 6:55 PM CDT | Severe Thunderstorm Warning | LSX | Franklin, Jefferson, Saint Louis | 50 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.