Alert archive / Missouri / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 226, NWS St. Louis, MO

May 30, 20086 counties in Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 30, 2008, 7:41 PM CDT for 6 counties in Missouri. It was in force for 49 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 30, 2008, 7:41 PM CDT (00:41 UTC)
Expired: May 30, 2008, 8:30 PM CDT
In force: 49 min
Issued by: NWS St. Louis, MO
Area: Storm-based polygon

Counties Audrain County, MO, Callaway County, MO, Lincoln County, MO, Montgomery County, MO, Pike County, MO, Warren County, MO

The radar

The St Louis radar (KLSX), 74 km from the middle of the area, began a volume at 00:44 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jan 7, 1:52 PM CST	Tornado Watch	SPC	146 days
May 30, 1:56 PM CDT	Tornado Watch	SPC	8 hr

What 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 May 30, 6:19 PM CDT, 1 hour 22 minutes earlier.

Area forecast discussion, May 30, 6:19 PM CDT, 1 hour 22 minutes before

AREA FORECAST DISCUSSION...UPDATED AVIATION
NATIONAL WEATHER SERVICE ST LOUIS MO
619 PM CDT FRI MAY 30 2008

.DISCUSSION...
/250 PM CDT FRI MAY 30 2008/
A COLD FRONT EXTENDED FROM EASTERN WI ACROSS NORTHWEST MO INTO
NORTHWEST OK AT THIS TIME. THE FRONT WILL CONTINUE TO SAG SLOWLY
SOUTHEASTWARD TONIGHT. BY NOON SATURDAY, EXPECT THE FRONT WILL
EXTEND FROM SOUTHERN IL ACROSS SOUTH MO INTO NORTHERN OK. WEAK HIGH
PRESSURE WILL BUILD INTO THE AREA ON SATURDAY BEHIND THE FRONT.

SCATTERED THUNDERSTORMS HAVE DEVELOPED FROM NORTHWEST MO ACROSS
NORTHEAST MO AHEAD OF THE FRONT. THE LATEST LAPS DATA INDICATED
CAPES HAVE INCREASED TO ABOVE 3000 J/KG FROM CENTRAL MO INTO
NORTHWEST MO. LIS ARE IN THE -5 TO -6 RANGE. SURFACE DEWPOINTS ARE
IN THE MID 60S TO NEAR 70 ACROSS THE ENTIRE AREA. TORNADO WATCH IS
IN EFFECT UNTIL 10 PM FOR MUCH OF THE AREA. A BAND OF MID 30S TO LOW
40S K INDICES IS FORECAST BY THE MODELS ACROSS MUCH OF THE AREA
EARLY THIS EVENING.

MUCH DRIER AIR IS FORECAST TO DROP DOWN ACROSS THE AREA ON SATURDAY.
EXPECT SCATTERED CONVECTION ACROSS PORTIONS OF CENTRAL MO ACROSS THE
EASTERN OZARKS DURING THE AFTERNOON. EXPECT SCATTERED CONVECTION
ACROSS SOUTH MO SATURDAY NIGHT IN THE VICINITY OF THE FRONT.

A DEEP UPPER TROF IS FORECAST TO DIG INTO THE CENTRAL ROCKIES BY
EARLY THURSDAY. THE ECMWF IS MUCH DEEPER WITH THIS SYSTEM THAN THE
GFS. THE SURFACE LOW THAT IS FORECAST TO DEVELOP OVER THE CENTRAL
PLAINS LOOKS MORE LIKE EARLY APRIL THAN EARLY JUNE.

TPS

&&

.AVIATION...
/614 PM CDT FRI MAY 30 2008/
FOR THE 00Z TAFS...
A COLD FRONT EXTENDED FROM NORTHEAST IA ACROSS NORTHWEST MO INTO
NORTHWEST OK. SCATTERED SEVERE THUNDERSTORMS CONTINUED EARLY THIS
EVENING ACROSS NORTHEAST MO-WEST CENTRAL IL. THE THUNDERSTORMS
WERE MOVING TO THE EAST. THE THUNDERSTORMS ARE EXPECTED TO BE
CLEAR OF KUIN BY 01Z AND WILL AFFECT KCOU AND STL METRO AREA
DURING THE EVENING. TORNADO WATCH REMAINS IN EFFECT UNTIL 03Z.
THUNDERSTORMS ARE EXPECTED TO BE CLEAR OF THE TAF SITES BY MIDNIGHT.

TPS

&&

.LSX WATCHES/WARNINGS/ADVISORIES...
MO...NONE.
IL...NONE.
&&

WFO LSX

Hazardous weather outlook, May 30, 3:39 PM CDT, 4 hours 2 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
339 PM CDT FRI MAY 30 2008

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-311200-
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-LEWIS-
SHELBY-MARION-MONROE-RALLS-PIKE-BOONE-AUDRAIN-MONITEAU-COLE-OSAGE-
CALLAWAY-MONTGOMERY-LINCOLN-GASCONADE-WARREN-ST. CHARLES-FRANKLIN-
ST. LOUIS-ST. LOUIS CITY-JEFFERSON-CRAWFORD-WASHINGTON-
ST. FRANCOIS-STE. GENEVIEVE-IRON-MADISON-REYNOLDS-
339 PM CDT FRI MAY 30 2008

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN AND
CENTRAL MISSOURI AS WELL AS WEST CENTRAL AND SOUTHWEST ILLINOIS.

.DAY ONE...TONIGHT

THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS OVER MUCH OF THE
AREA THIS EVENING. THUNDERSTORMS WILL BE LIKELY LATE THIS
AFTERNOON AND CONTINUE INTO THE EVENING HOURS. SOME OF THESE
STORMS WILL BE CAPABLE OF PRODUCING LARGE HAIL...DAMAGING WIND
GUSTS IN EXCESS OF 60 MPH...LOCALLY HEAVY RAINFALL AND TORNADOES.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THERE IS A CHANCE OF THUNDERSTORMS ACROSS A PORTION OF SOUTHEAST
MISSOURI SATURDAY AFTERNOON AND SATURDAY NIGHT.

THE CHANCE OF THUNDERSTORMS RETURNS TO THE REGION MONDAY AND
MONDAY NIGHT.

THERE IS YET ANOTHER CHANCE OF THUNDERSTORMS ACROSS A PORTION OF
THE AREA FOR WEDNESDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE NEEDED THIS EVENING.

&&

FOR A GRAPHICAL VERSION OF THIS INFORMATION SEE OUR
WEBPAGE AT (LOWERCASE)... HTTP://WWW.WEATHER.GOV/LSX/?N=HWO1

In the hours before

Local storm report, May 30, 5:48 PM CDT, 1 hour 53 minutes before

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Local storm report, May 30, 5:52 PM CDT, 1 hour 49 minutes before

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Local storm report, May 30, 5:54 PM CDT, 1 hour 47 minutes before

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Local storm report, May 30, 5:59 PM CDT, 1 hour 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
559 PM CDT FRI MAY 30 2008

..TIME..    ...EVENT...     ...CITY LOCATION...      ...LAT.LON...
..DATE..    ....MAG....     ..COUNTY LOCATION.. ST.. ...SOURCE....
            ..REMARKS..

0558 PM     WALL CLOUD       6 N PIKE                39.55N  91.03W
05/30/2008                   PIKE               IL   NWS EMPLOYEE

            RETIRED NWS EMPLOYEE...WALL CLOUD TO NORTH OF HIM...HE
            IS ON US HWY 54 NEAR PIKE...IL.

&&

EVENT NUMBER 00217

BYRD

Local storm report, May 30, 6:09 PM CDT, 1 hour 32 minutes before

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Local storm report, May 30, 6:19 PM CDT, 1 hour 22 minutes before

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The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 30, 7:29 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Pike	31 min
May 30, 7:35 PM CDT	Areal Flood Advisory	LSX	Audrain, Boone, Monroe, Montgomery, Ralls	4 hr
May 30, 7:45 PM CDT	Severe Thunderstorm Warning	LSX	Boone, Callaway	45 min
May 30, 7:57 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln	48 min
May 30, 8:28 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Lincoln, Montgomery, Warren	47 min
May 30, 8:45 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln	45 min
May 30, 9:08 PM CDT	Severe Thunderstorm Warning	LSX	Saint Charles, Warren	52 min
May 30, 9:13 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Montgomery, Warren	32 min
May 30, 9:49 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Jefferson, Saint Charles, Saint Louis, City of Saint Louis	41 min
May 30, 9:51 PM CDT	Flash Flood Warning	LSX	Lincoln, Montgomery, Saint Charles, Saint Louis, Warren, City of Saint Louis	6 hr
May 30, 10:21 PM CDT	Severe Thunderstorm Warning	LSX	Saint Louis, City of Saint Louis	39 min
May 31, 8:40 AM CDT	River Flood Warning	LSX	Lincoln	22 hr
May 31, 5:14 PM CDT	Severe Thunderstorm Warning	LSX	Boone, Callaway, Moniteau	31 min
May 31, 5:34 PM CDT	Severe Thunderstorm Warning	LSX	Montgomery, Warren	41 min
May 31, 6:08 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Saint Charles, Saint Louis	52 min
May 31, 6:40 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln, Saint Charles, Saint Louis	50 min
May 31, 6:59 PM CDT	Areal Flood Advisory	LSX	Callaway, Montgomery, Warren	4 hr
May 30, 7:38 PM CDT	Tornado Warning	LSX	Montgomery	37 min
May 30, 8:25 PM CDT	Severe Thunderstorm Warning	LSX	Jersey, Macoupin, Madison	50 min
May 30, 9:11 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Macoupin, Madison, Montgomery	49 min
May 30, 9:19 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Madison	41 min
May 30, 9:58 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Fayette, Madison	47 min
May 30, 10:56 PM CDT	Severe Thunderstorm Warning	LSX	Clinton, Saint Clair, Washington	49 min
May 30, 11:18 PM CDT	Flash Flood Warning	LSX	Clinton, Monroe, Saint Clair, Washington	6 hr
May 31, 6:01 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Fayette, Macoupin, Madison, Montgomery	44 min
May 31, 6:03 PM CDT	Severe Thunderstorm Warning	LSX	Marion	27 min
May 31, 6:44 PM CDT	Severe Thunderstorm Warning	LSX	Bond, Clinton, Fayette, Marion	40 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2008 Every severe thunderstorm warning in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.