Alert archive / Missouri / Severe Thunderstorm Warnings in 2005

Severe Thunderstorm Warning 72, NWS St. Louis, MO

May 11, 2005Osage County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at May 11, 2005, 3:16 PM CDT for Osage County, Missouri. It was in force for 44 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 11, 2005, 3:16 PM CDT (20:16 UTC)
Expired: May 11, 2005, 4:00 PM CDT
In force: 44 min
Issued by: NWS St. Louis, MO
Area: Counties, with a storm outline in the text

County Osage County, MO

The radar

The St Louis radar (KLSX), 123 km from the middle of the area, began a volume at 20:17 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, 8.3 hours before the alert went out and 225 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: 1362 J/kg
Mixed-layer CIN: -107 J/kg
Mixed-layer LCL: 1007 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 104 m²/s²
0-3 km storm-relative helicity: 94 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KLSX 112016
SVRLSX
MOC151-112100-
/O.NEW.KLSX.SV.W.0072.050511T2016Z-050511T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
316 PM CDT WED MAY 11 2005

THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  OSAGE COUNTY IN CENTRAL MISSOURI

* UNTIL 400 PM CDT

* AT 312 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  WINDS IN EXCESS OF 80 MPH.  THIS STORM WAS LOCATED 14 MILES
  SOUTHWEST OF WESTPHALIA...OR ABOUT 18 MILES SOUTH OF JEFFERSON
  CITY...AND MOVING NORTHEAST AT 15 MPH.

* LOCATIONS IMPACTED INCLUDE...
  WESTPHALIA
  RICH FOUNTAIN
  FREEBURG

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 3833 9222 3829 9220 3829 9199 3834 9168
      3863 9191

$$

TRUETT

2 follow-up statements

000 
WWUS53 KLSX 112053
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
352 PM CDT WED MAY 11 2005

MOC151-112100-
/O.CON.KLSX.SV.W.0072.000000T0000Z-050511T2100Z/
OSAGE MO-
352 PM CDT WED MAY 11 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 400 PM CDT FOR OSAGE
COUNTY...

AT 317 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A SEVERE 
THUNDERSTORM PRODUCING PENNY SIZE HAIL OVER META...MOVING 
NORTHEAST AT 15 MPH.

LOCATIONS NEAR THE PATH OF THE SEVERE THUNDERSTORM INCLUDE...
WESTPHALIA...LOOSE CREEK...RICH FOUNTAIN AND FREEBURG.

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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT
WEDNESDAY EVENING FOR SOUTHWESTERN ILLINOIS AND NORTHEASTERN
MISSOURI.

LAT...LON 3833 9222 3829 9220 3829 9199 3834 9168
      3863 9191

$$

SDD

000 
WWUS53 KLSX 112100
SVSLSX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
400 PM CDT WED MAY 11 2005

MOC151-112110-
/O.EXP.KLSX.SV.W.0072.000000T0000Z-050511T2100Z/
OSAGE MO-
400 PM CDT WED MAY 11 2005

...THE SEVERE THUNDERSTORM WARNING FOR OSAGE COUNTY HAS EXPIRED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED AND NO LONGER
APPEARED TO BE SEVERE.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM CDT
WEDNESDAY EVENING FOR SOUTHWESTERN ILLINOIS AND NORTHEASTERN
MISSOURI.

LAT...LON 3833 9222 3829 9220 3829 9199 3834 9168
      3863 9191

$$

SDD

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 11, 3:10 PM CDT, 6 minutes earlier.

Area forecast discussion, May 11, 3:10 PM CDT, 6 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE ST LOUIS MO
310 PM CDT WED MAY 11 2005

.DISCUSSION...

IMPRESSIVE BOUNDARY HAS SET UP ACRS MIDWEST INCLUDING NRN MO EAST
INTO CNTRL IL.  TSTMS HAVE BROKEN OUT ALG OLD OUTFLOW BNDRY FROM
LAST NIGHTS MCS AND NMRS STORMS HAVE HAIL IN THEM ALREADY.  LOOKS
LIKE AN ACTIVE NGT FOR SVR WX. HAD THOUGHTS OF A FLOOD WATCH FOR
NRN COUNTIES BUT SOME OF THE MODELS HAVE THE FRONT RETREATING
NORTH WITH PCPN ACTIVITY NORTH OF OUR AREA SO WILL WAIT SO SEE
WHAT EVOLVES.

DEEP CLOSD LOW OVR CNTRL ROCKIES FCST TO EJECT NEWD WITH A FEW
SHORT WAVES LIFTING NEWD IN FRONT OF IT.  SOME STORMS WILL BE
SVR THIS EVE BUT 70 PLUS DWPTS HAVE BEEN POOLING ALONG THE FRONT
AND PRECIPITABLE WATER VALUES ARE 1.25 TO 1.50 SO PCPN PRODUCTION
WILL BE VERY EFFICIENT.

TOO BUSY WITH SVR WX TO DISCUSS ADDITIONAL PERIODS ATTM.

&&

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

&&

PEDIGO

Hazardous weather outlook, May 11, 3:15 PM CDT, 1 minute before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
315 PM CDT WED MAY 11 2005

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-121100-
ADAMS IL-AUDRAIN-BOND IL-BOONE-BROWN-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-
315 PM CDT WED MAY 11 2005

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

.DAY ONE...TONIGHT

SEVERE THUNDERSTORMS WILL BE MOVING ACROSS THE AREA THIS EVENING AND
TONIGHT. THE PRIMARY SEVERE WEATHER THREAT WILL BE LARGE HAIL.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY
THERE WILL BE A CHANCE FOR THUNDERSTORMS AGAIN ON THURSDAY AND
FRIDAY.  THE THREAT FOR SEVERE WEATHER CONTINUES FOR BOTH DAYS WITH
THE PRIMARY THREAT BEING LARGE HAIL AND DAMAGING WINDS.

MORE THUNDERSTORMS WILL BE POSSIBLE ON SATURDAY.

.SPOTTER INFORMATION STATEMENT...

STORM SPOTTERS SHOULD STAND READY TO REPORT SEVERE WEATHER TO THE
NATIONAL WEATHER SERVICE THIS EVENING AND TONIGHT.

CARNEY

In the hours before

Local storm report, May 11, 2:36 PM CDT, 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
236 PM CDT WED MAY 11 2005

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

0230 PM     FUNNEL CLOUD     7 SE HARRISBURG         39.07N 92.37W
05/11/2005                   BOONE              MO   COUNTY OFFICIAL

            PUBLIC REPORTED FUNNEL CLOUD AT ROUTE E.

0230 PM     HAIL             5 W ASHLAND             38.77N 92.35W
05/11/2005  0.88 INCH        BOONE              MO   TRAINED SPOTTER

&&

CVKING

Local storm report, May 11, 2:45 PM CDT, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
245 PM CDT WED MAY 11 2005

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

0240 PM     HAIL             4 E HARRISBURG          39.14N 92.39W
05/11/2005  1.75 INCH        BOONE              MO   COUNTY OFFICIAL

&&

CVKING

Local storm report, May 11, 2:47 PM CDT, 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
247 PM CDT WED MAY 11 2005

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

0245 PM     HAIL             7 N COLUMBIA            39.06N 92.33W
05/11/2005  2.00 INCH        BOONE              MO   TRAINED SPOTTER

            LEMON SIZE HAIL

&&

CVKING

Local storm report, May 11, 2:53 PM CDT, 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
253 PM CDT WED MAY 11 2005

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

0246 PM     HAIL             5 S COLUMBIA            38.88N 92.33W
05/11/2005  1.75 INCH        BOONE              MO   TRAINED SPOTTER

0251 PM     FUNNEL CLOUD     3 N COLUMBIA            39.00N 92.33W
05/11/2005                   BOONE              MO   COUNTY OFFICIAL

            ROTATION WITH WALL CLOUD ON NORTH SIDE OF COLUMBIA.

&&

CVKING

Local storm report, May 11, 3:00 PM CDT, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
300 PM CDT WED MAY 11 2005

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

0257 PM     HAIL             POTOSI                  37.94N 90.78W
05/11/2005  1.00 INCH        WASHINGTON         MO   TRAINED SPOTTER

&&

CVKING

Local storm report, May 11, 3:13 PM CDT, 3 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
313 PM CDT WED MAY 11 2005

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

0310 PM     FUNNEL CLOUD     4 N COLUMBIA            39.01N 92.33W
05/11/2005                   BOONE              MO   COUNTY OFFICIAL

&&

CVKING

The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 1:54 PM CDT	Severe Thunderstorm Warning	LSX	Boone	51 min
May 11, 2:16 PM CDT	Tornado Warning	LSX	Boone	44 min
May 11, 2:20 PM CDT	Severe Thunderstorm Warning	LSX	Boone, Callaway	40 min
May 11, 2:55 PM CDT	Tornado Warning	LSX	Audrain, Boone, Callaway	50 min
May 11, 3:00 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Saint Francois, Washington	45 min
May 11, 3:02 PM CDT	Severe Thunderstorm Warning	LSX	Callaway	43 min
May 11, 3:12 PM CDT	Tornado Warning	LSX	Callaway	48 min
May 11, 3:21 PM CDT	Severe Thunderstorm Warning	LSX	Boone, Cole, Moniteau	39 min
May 11, 3:45 PM CDT	Severe Thunderstorm Warning	LSX	Iron, Saint Francois, Washington	45 min
May 11, 3:55 PM CDT	Severe Thunderstorm Warning	LSX	Boone	53 min
May 11, 3:57 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson	48 min
May 11, 3:59 PM CDT	Severe Thunderstorm Warning	LSX	Callaway, Montgomery	50 min
May 11, 4:17 PM CDT	Severe Thunderstorm Warning	LSX	Osage	43 min
May 11, 4:31 PM CDT	Severe Thunderstorm Warning	LSX	Saint Francois	21 min
May 11, 4:44 PM CDT	Severe Thunderstorm Warning	LSX	Jefferson, Saint Louis, City of Saint Louis	26 min
May 11, 4:50 PM CDT	Severe Thunderstorm Warning	LSX	Franklin	27 min
May 11, 4:58 PM CDT	Severe Thunderstorm Warning	LSX	Gasconade	16 min
May 11, 5:03 PM CDT	Severe Thunderstorm Warning	LSX	Boone	31 min
May 11, 5:37 PM CDT	Flash Flood Warning	LSX	Boone	5 hr
May 11, 5:37 PM CDT	Severe Thunderstorm Warning	LSX	Montgomery	38 min
May 11, 5:43 PM CDT	Severe Thunderstorm Warning	LSX	Boone	47 min
May 11, 5:48 PM CDT	Severe Thunderstorm Warning	LSX	Warren	42 min
May 11, 5:56 PM CDT	Severe Thunderstorm Warning	LSX	Lewis	49 min
May 11, 6:10 PM CDT	Severe Thunderstorm Warning	LSX	Lincoln	51 min
May 11, 6:19 PM CDT	Severe Thunderstorm Warning	LSX	Pike	31 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2005 Every severe thunderstorm warning in 2005

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.