Alert archive / Missouri / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 264, NWS St. Louis, MO

May 3, 2006Gasconade County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 3, 2006, 10:33 AM CDT for Gasconade County, Missouri. It was in force for 27 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: May 3, 2006, 10:33 AM CDT (15:33 UTC)
Expired: May 3, 2006, 11:00 AM CDT
In force: 27 min
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

County Gasconade County, MO

The radar

The St Louis radar (KLSX), 83 km from the middle of the area, began a volume at 15:34 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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 nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 3.6 hours before the alert went out and 256 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1602 J/kg
Mixed-layer CIN: -87 J/kg
Mixed-layer LCL: 1017 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 100 m²/s²
0-3 km storm-relative helicity: 133 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.9

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS53 KLSX 031532
SVRLSX
MOC073-031600-
/O.NEW.KLSX.SV.W.0264.060503T1533Z-060503T1600Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1033 AM CDT WED MAY 3 2006

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN GASCONADE COUNTY IN EAST CENTRAL MISSOURI

* UNTIL 1100 AM CDT

* AT 1029 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 6 MILES
  SOUTH OF BLAND...OR ABOUT 12 MILES SOUTHWEST OF OWENSVILLE...AND
  MOVING EAST AT 35 MPH.

* LOCATIONS IMPACTED INCLUDE...
  OWENSVILLE...
  ROSEBUD...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME
OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO
AREAS WHERE WATER COVERS THE ROAD.

LAT...LON 3830 9165 3846 9139 3842 9138 3841 9137
      3837 9138 3821 9138 3821 9154 3816 9155
      3816 9164

$$

CARNEY

1 follow-up statement

000 
WWUS53 KLSX 031552
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1051 AM CDT WED MAY 3 2006

MOC073-031601-
/O.EXP.KLSX.SV.W.0264.000000T0000Z-060503T1600Z/
GASCONADE MO-
1051 AM CDT WED MAY 3 2006

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN GASCONADE COUNTY 
WILL BE ALLOWED TO EXPIRE AT 1100 AM...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND NO LONGER 
APPEARED TO BE SEVERE. HOWEVER...VERY HEAVY RAIN...SMALL HAIL...AND 
DEADLY LIGHTNING WILL STILL BE POSSIBLE WITH THIS STORM.

LAT...LON 3830 9165 3846 9139 3842 9138 3841 9137
      3837 9138 3821 9138 3821 9154 3816 9155
      3816 9164

$$

CARNEY

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 3, 4:30 AM CDT, 6 hours 3 minutes earlier.

Area forecast discussion, May 3, 4:30 AM CDT, 6 hours 3 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ST LOUIS MO
430 AM CDT WED MAY 3 2006

CLOSD LOW HAS FORMED JUST NORTH OF THE U.S./CANADIAN BORDER AND IS
CAUSING A SFC LOW TO DEVELOP JUST N OF THE MINNESOTA BORDER THIS
MORNING. MEANWHLE ENERGY MOVING IN OFF THE PACIFIC COAST IS CAUSING
A TROF TO SHARPEN OVER NRN CALIFORNIA AND LITTLE PIECES OF NEBULOUS
ENERGY DEVELOP OVER THE ROCKIES AND MOVE OUR WAY.  ITS TOUGH TO
DIFFERENTIATE EXACTLY WHEN THESE WILL COME OUT SO CAN ONLY TRY TO
DEAL WITH THE FIRST ONE ATTM.  IT APPEARS THAT ONE SUCH PIECE OVER
NEBRASKA IS ALIGNING WITH A CDFNT THAT EXTENDS FROM SFC LOW NEAR
CANADA AND CURLS SOUTH THEN SOUTHWEST THROUGH WESTERN IOWA INTO
SW KANSAS.

THE CLOSD LOW MOVG EAST COMBINES WITH SHARPENING WAVE OVR CALIFORNIA
TO ALLOW RISING HEIGHTS FROM THE PACIFIC COAST INTO ALBERTA. THIS
WILL BE REFLECTED IN A SURFACE HIGH DEVELOPING IN THE NORTHERN
PLAINS AND IN THE LEE SIDE OF THE ROCKIES AND SLIDING SOUTHEAST
INTO THE AREA.  THIS SHOULD BEGIN TO SHUNT THE ENERGY PIECES
COMING OUT OF THE ROCKIES A BIT FURTHER SOUTH AND EVENTUALLY
SETTLE PRECIPITATION SOUTH INTO ARKANSAS WITH SOUTHERN MISSOURI
BEING IN THE NORTHERN FRINGE OF THE PRECIPITATION UMBRELLA.

NOT SURE HOW FAR SOUTH THE COLD FRONT WILL MOVE. SPC HAS THE FRONT
STALLING OUT AND HOLDING OVR NRN MO THROUGH THURSDAY. IF SO WE
SHOULD HAVE A DECENT CHANCE FOR PRECIPITATION AGAIN TOMORROW.

THUNDERSTORMS ARE BREAKING OUT JUST NORTHEAT OF KANSAS CITY ATTM
AND CORFIDI VECTORS CURL MORE NORTHWESTERLY FURTHER EAST SO THESE
WILL PROBABLY HOLD TOGETHER AND MOVE EAST AND THEN EAST SOUTHEAST
TOWARD KCOU AND KSTL THIS MRNG.  WILL MAKE SOME LAST MINUTE
INCREASES TO POPS TO FOLLOW UP ON THIS.

TEMPS WILL COOL BY FRIDAY BEHIND THE COLD FRONT. 850MB TEMPS FALL
TO PLUS 2 TO PLUS 6 OVR NRN HALF OF CWA...IF CLOUDS ROLL BACK IN
IT WILL BE EVEN COOLER THAN FORECAST.  WL HAVE TO WATCH THAT.

PEDIGO
&&

.AVIATION...
FOR THE 12Z TAFS...
COLD FRONT EXTENDED FROM CENTRAL IOWA ACROSS THE NORTHWEST CORNER OF
MISSOURI INTO SOUTHEAST COLORADO EARLY THIS MORNING. FRONT WILL
CONTINUE TO MOVE SLOWLY SOUTHEASTWARD TODAY AND TONIGHT. BY 12Z
THURSDAY, EXPECT THE FRONT WILL EXTEND FROM SOUTHERN INDIANA ACROSS
THE MISSOURI BOOTHEEL INTO EASTERN OKLAHOMA. CLUSTER OF SHOWERS AND
THUNDERSTORMS WAS MOVING ACROSS NORTHEAST AND CENTRAL MISSOURI AT
THIS TIME. MOVEMENT WAS TO THE EAST-NORTHEAST. EXPECT WIDESPREAD
SHOWERS AND THUNDERSTORMS ACROSS THE AREA TODAY AHEAD OF THE COLD
FRONT.

&&

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

WFO LSX

Hazardous weather outlook, May 3, 6:36 AM CDT, 3 hours 57 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
636 AM CDT WED MAY 3 2006

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-041145-
ADAMS IL-AUDRAIN-BOND IL-BOONE-BROWN IL-CALHOUN IL-CALLAWAY-
CLINTON IL-COLE-CRAWFORD-FAYETTE IL-FRANKLIN-GASCONADE-GREENE IL-
IRON-JEFFERSON-JERSEY IL-KNOX-LEWIS-LINCOLN-MACOUPIN IL-MADISON-
MADISON IL-MARION-MARION IL-MONITEAU-MONROE-MONROE IL-MONTGOMERY-
MONTGOMERY IL-OSAGE-PIKE-PIKE IL-RALLS-RANDOLPH IL-REYNOLDS-
SHELBY-ST. CHARLES-ST. CLAIR IL-ST. FRANCOIS-ST. LOUIS-
ST. LOUIS CITY-STE. GENEVIEVE-WARREN-WASHINGTON-WASHINGTON IL-
636 AM CDT WED MAY 3 2006

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

.DAY ONE...TODAY AND TONIGHT

A COLD FRONT WILL SETTLE SOUTHEAST ACROSS MISSOURI TODAY AND
TONIGHT. IT TRIGGERED THUNDERSTORMS ACROSS THE NORTHERN HALF OF
MISSOURI EARLY THIS MORNING. THESE STORMS WILL MOVE ACROSS
NORTHERN MISSOURI INTO CENTRAL ILLINOIS BRINGING OCCASIONAL HEAVY
DOWNPOURS...SMALL HAIL AND GUSTY WINDS. THEY WILL PROBABLY
WEAKEN THROUGH THE MORNING AND THEN REFORM WITH STRONG AND LOCALLY
SEVERE THUNDERSTORMS ACROSS THE BISTATE AREA LATER THS AFTERNOON
AND EVENING. DAMAGING WINDS AND HAIL ARE THE MOST LIKELY THREAT IF
SEVERE WEATHER OCCURS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

ALTHOUGH THE COLD FRONT WILL SETTLE TO JUST SOUTH OF THE
AREA...CONDITIONS ARE STILL SOMEWHAT UNSETTLED AND THERE COULD
BE FAVORABLE CONDITIONS FOR MORE LOCALLY SEVERE THUNDERSTORMS TO
DEVELOP AGAIN ON THURSDAY. THE AIR WILL BE QUITE UNSTABLE WITH
STEEP MID-LEVEL LAPSE RATES WILL BE QUITE STEEP AND STORMS ARE
EXPECTED TO FORM ON A DRYLINE IN OKLAHOMA AND MOVE EAST NORTHEAST
INTO ARKANSAS AND POSSIBLY MISSOURI. GREATEST THREAT IS FOR LARGE
HAIL ON THURSDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION COULD BE NEEDED THIS AFTERNOON OR TONIGHT.
THOSE RESPONSIBLE SHOULD KEEP ABREAST OF LOCAL WEATHER CONDITIONS.

PEDIGO

In the hours before

Local storm report, May 3, 9:29 AM CDT, 1 hour 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
929 AM CDT WED MAY 03 2006

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

0920 AM     HAIL             JEFFERSON CITY          38.57N 92.19W
05/03/2006  E1.00 INCH       COLE               MO   TRAINED SPOTTER

            REPORT FROM HIGHWAY PATROL..HAIL RANGING FROM 1/2 TO 1
            INCH MAINLY ON THE EAST SIDE OF JEFFERSON CITY.

&&

JKRAMPER

Local storm report, May 3, 9:31 AM CDT, 1 hour 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
931 AM CDT WED MAY 03 2006

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

0930 AM     HAIL             OSAGE CITY              38.55N 92.03W
05/03/2006  E0.75 INCH       OSAGE              MO   TRAINED SPOTTER

&&

JKRAMPER

Special weather statement, May 3, 10:14 AM CDT, 19 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1014 AM CDT WED MAY 3 2006

MOZ052-031600-
LINCOLN-
1014 AM CDT WED MAY 3 2006

A STRONG THUNDERSTORM WILL MOVE THROUGH LINCOLN COUNTY.  THE
THUNDERSTORM IS MOVING EAST AT AROUND 40 MPH.  THE STRONGEST PART
OF THE STORM WILL BE AFFECING MAINLY AREAS BETWEEN HAWK POINT...
CAVE...TROY...MOSCOW MILLS...AND WINFIELD...AND WILL EXIT THE COUNTY
BY ABOUT 1100 AM THIS MORNING. THIS STORM WILL BE CAPABLE OF
PRODUCING HAIL BETWEEN 1/2 AND 3/4 INCH IN SIZE...GUSTY WINDS UP TO
45 OR 50 MPH...AND CONTINUOUS DEADLY LIGHTNING. TAKE SHELTER IN A
STURDY BUILDING UNTIL THE STORM PASSES.

CARNEY

Special weather statement, May 3, 10:14 AM CDT, 19 minutes before

SPECIAL WEATHER STATEMENT...CORRECTED TYPO
NATIONAL WEATHER SERVICE ST LOUIS MO
1014 AM CDT WED MAY 3 2006

MOZ052-031600-
LINCOLN-
1014 AM CDT WED MAY 3 2006

A STRONG THUNDERSTORM WILL MOVE THROUGH LINCOLN COUNTY.  THE
THUNDERSTORM IS MOVING EAST AT AROUND 40 MPH.  THE STRONGEST PART
OF THE STORM WILL BE AFFECTING MAINLY AREAS BETWEEN HAWK POINT...
CAVE...TROY...MOSCOW MILLS...AND WINFIELD...AND WILL EXIT THE COUNTY
BY ABOUT 1100 AM THIS MORNING. THIS STORM WILL BE CAPABLE OF
PRODUCING HAIL BETWEEN 1/2 AND 3/4 INCH IN SIZE...GUSTY WINDS UP TO
45 OR 50 MPH...AND CONTINUOUS DEADLY LIGHTNING. TAKE SHELTER IN A
STURDY BUILDING UNTIL THE STORM PASSES.

CARNEY

Local storm report, May 3, 10:25 AM CDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
1025 AM CDT WED MAY 03 2006

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

1020 AM     HAIL             OWENSVILLE              38.35N 91.50W
05/03/2006  E0.75 INCH       GASCONADE          MO   TRAINED SPOTTER

&&

JKRAMPER

Local storm report, May 3, 10:33 AM CDT, 0 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
1033 AM CDT WED MAY 03 2006

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

1030 AM     HAIL             4 S BLAND               38.24N 91.63W
05/03/2006  E1.00 INCH       GASCONADE          MO   TRAINED SPOTTER

&&

JKRAMPER

The office that day

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

Issued	Product	Office	Counties	Lasted
May 3, 8:19 AM CDT	Severe Thunderstorm Warning	LSX	Gasconade, Montgomery, Osage	26 min
May 3, 8:48 AM CDT	Severe Thunderstorm Warning	LSX	Callaway	42 min
May 3, 9:25 AM CDT	Severe Thunderstorm Warning	LSX	Osage	50 min
May 3, 9:32 AM CDT	Severe Thunderstorm Warning	LSX	Callaway, Montgomery, Warren	43 min
May 3, 10:00 AM CDT	Severe Thunderstorm Warning	LSX	Gasconade	30 min
May 3, 10:43 AM CDT	Severe Thunderstorm Warning	LSX	Crawford, Franklin	22 min
May 3, 2:11 PM CDT	Severe Thunderstorm Warning	LSX	Reynolds	49 min
May 3, 2:40 PM CDT	Flash Flood Warning	LSX	Reynolds	4 hr
May 3, 6:03 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Washington	72 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2006 Every severe thunderstorm warning in 2006

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.