Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 376, NWS Tulsa, OK

August 5, 2003Osage County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Aug 5, 2003, 10:47 PM CDT for Osage County, Oklahoma. It was in force for 58 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: Aug 5, 2003, 10:47 PM CDT (03:47 UTC)
Expired: Aug 5, 2003, 11:45 PM CDT
In force: 58 min
Issued by: NWS Tulsa, OK
Area: Counties, with a storm outline in the text

County Osage County, OK

The radar

The Tulsa radar (KINX), 57 km from the middle of the area, began a volume at 03:46 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

Norman, OK (KOUN), launched 00:00Z, 3.8 hours before the alert went out and 179 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: 1647 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 2545 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 28 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.

511 
WUUS54 KTSA 060347
SVRTUL
OKC113-060445-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1047 PM CDT TUE AUG 5 2003

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHEASTERN OSAGE COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 1145 PM CDT

* AT 1047 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 3
  MILES EAST OF BARNSDALL...MOVING SOUTH AT 25 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...AVANT AND
  BARNSDALL.

HAIL TO THE SIZE OF QUARTERS AND WIND GUSTS TO 60 MPH CAN BE 
EXPECTED IN THE WARNED AREA. STAY INDOORS AND AWAY FROM WINDOWS 
UNTIL THE STORM HAS PASSED.

LAT...LON 3660 9602 3658 9621 3622 9625 3621 9601

$$

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 Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 5, 9:43 PM CDT, 1 hour 4 minutes earlier.

Area forecast discussion, Aug 5, 9:43 PM CDT, 1 hour 4 minutes before

EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OKLAHOMA
940 CDT TUE AUG 5 2003

STRONG CONVECTION WHICH DEVELOPED IN SOUTHEAST KANSAS EARLIER IN THE
EVENING IS JUST NOW ENCROACHING ON THE NORTHERN BOUNDARY OF THE CWA.
A SEVERE THUNDERSTORM WATCH CURRENTLY COVERS OUR NORTHERN TIER OF
COUNTIES. HAVE ALREADY SENT OUT A QUICK UPDATE EARLIER TO ADD THE WATCH.
WILL SEND OUT ANOTHER UPDATE SHORTLY TO INCREASE POPS ACROSS THE
NORTHERN HALF OF FA OVERNIGHT.

FORECAST ID= 06

.TSA...
AR...NONE.
OK...NONE.

Hazardous weather outlook, Aug 5, 9:33 AM CDT, 13 hours 14 minutes before

ARZ001-002-010-011-019-020-029-OKZ049-053>076-061100-

HAZARDOUS WEATHER OUTLOOK...CORRECTION
NATIONAL WEATHER SERVICE TULSA OK
933 AM CDT TUE AUG 5 2003

THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS
MUCH OF EASTERN OKLAHOMA.

.DAY ONE...TODAY

...SLIGHT CHANCE OF SEVERE THUNDERSTORMS TODAY...

WEAK SURFACE LOW PRESSURE IN WESTERN OKLAHOMA THIS MORNING
WILL MEANDER SOUTHEAST TODAY AND TONIGHT. INTERSECTING SURFACE
BOUNDARIES FROM SHOWERS AND THUNDERSTORMS OVERNIGHT...COULD INDUCE
MID TO LATE AFTERNOON THUNDERSTORMS...LASTING INTO THE EVENING. LOW
LEVEL MOISTURE IS ABUNDANT...HOWEVER ONCE AN UPPER LEVEL SHORT WAVE
CLEARS THE REGION THIS MORNING...UPPER SUPPORT WILL BECOME
NEGLIGIBLE AS MID LEVELS REMAIN CAPPED.  THE GREATEST LIKELIHOOD FOR
THUNDERSTORMS WILL BE EXTREME EASTERN OKLAHOMA AND NORTHWEST AND
WEST CENTRALS ARKANSAS.

WARNING PROBABILITIES FOR SEVERE THUNDERSTORMS AND TORNADOES CAN BE
FOUND IN THE OUTLOOK SECTION AT: WWW.SRH.NOAA.GOV/TULSA. GIVEN
PROBABILITIES REPRESENT THE POTENTIAL FOR A WARNING TO BE ISSUED AT
YOUR LOCATION.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
THUNDERSTORMS WILL BE POSSIBLE IN NORTHWEST AND WEST CENTRAL
ARKANSAS WEDNESDAY...WITH ONLY ISOLATED THUNDER POSSIBLE IN
EASTERN OKLAHOMA. THE REMAINDER OF THE WEEK WILL BE DRY.

.SPOTTER / EMERGENCY MANAGEMENT ACTION STATEMENT...
SPOTTERS AND EMERGENCY MANAGEMENT PERSONNEL SHOULD CONTINUE TO
MONITOR THE LATEST FORECASTS.

ADDITIONAL WEATHER INFORMATION CAN BE FOUND AT...
WWW.SRH.NOAA.GOV/TULSA

In the hours before

Local storm report, Aug 5, 10:37 PM CDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1037 PM CDT TUE AUG 05 2003

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1009 PM    DEWEY                     OK   1.75 IN HAIL
08/05/03   WASHINGTON                     REPORTED BY BARTLESVILLE
                                          EOC.

1009 PM    DEWEY                     OK   75 MPH TSTORM WIND
08/05/03   WASHINGTON                     UTILITY DAMAGE. REPORTED
                                          BY BARTLESVILLE EOC.

0955 PM    2 ENE COPAN               OK   72 MPH TSTORM WIND
08/05/03   WASHINGTON                     MEASURED BY COPAN MESONET.

NK

Local storm report, Aug 5, 10:40 PM CDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1040 PM CDT TUE AUG 05 2003

TIME(CDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

1007 PM    2 S COPAN                 OK   0.88 IN HAIL
08/05/03   WASHINGTON                     REPORTED BY BARTLESVILLE
                                          EOC.

NK

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 5, 9:00 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Ottawa	60 min
Aug 5, 9:24 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Washington	66 min
Aug 5, 10:24 PM CDT	Severe Thunderstorm Warning	TSA	Rogers, Tulsa, Washington	66 min
Aug 5, 10:26 PM CDT	Severe Thunderstorm Warning	TSA	Rogers, Tulsa, Washington	64 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2003 Every severe thunderstorm warning in 2003

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.