Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 107, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 6, 2003, 4:47 PM CDT for Delaware County, Ottawa 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
- May 6, 2003, 4:47 PM CDT (21:47 UTC)
- Expired
- May 6, 2003, 5:45 PM CDT
- In force
- 58 min
- Issued by
- NWS Tulsa, OK
- Area
- Counties, with a storm outline in the text
Counties Delaware County, OK, Ottawa County, OK
The radar
The Tulsa radar (KINX), 80 km from the middle of the area, began a volume at 21:50 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 6, 11:40 AM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 9.8 hours before the alert went out and 102 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
- 34 J/kg
- Mixed-layer CIN
- -216 J/kg
- Mixed-layer LCL
- 1877 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 86 m²/s²
- 0-3 km storm-relative helicity
- 115 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KTSA 062147 SVRTUL OKC041-115-062245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 446 PM CDT TUE MAY 6 2003 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... DELAWARE COUNTY IN NORTHEAST OKLAHOMA OTTAWA COUNTY IN NORTHEAST OKLAHOMA * UNTIL 545 PM CDT * AT 446 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES SOUTHWEST OF CLEORA...MOVING NORTHEAST AT 20 MPH. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...CLEORA... GROVE...BERNICE...AFTON...FAIRLAND...WYANDOTTE AND QUAPAW. HAIL TO THE SIZE OF QUARTERS CAN BE EXPECTED IN THE WARNED AREA. STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. LAT...LON 3661 9505 3641 9504 3671 9461 3698 9479
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 May 6, 4:42 PM CDT, 5 minutes earlier.
Area forecast discussion, May 6, 4:42 PM CDT, 5 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OKLAHOMA 442 PM CDT TUE MAY 6 2003 AT 4PM THE THE DRY LINE EXTENDED FROM NEAR SOUTH COFFEYVILLE TO OKMULGEE TO JUST WEST OF ARDMORE. BY 7PM THE DRY LINE WILL EXTEND FROM NEAR JOPLIN TO 40 MILES WEST OF DURANT. STRONG MOISTURE CONVERGENCE IN SOUTHEAST OKLAHOMA HAS FORCED MULTIPLE CELLS TO DEVELOP...THE MOISTURE CONVERGENCE MAY RELAX DURING THE NEXT HOUR OR SO AND ALLOW MORE CELL SEPARATION. MORE DISCRETE CELLS ARE OCCURRING IN NORTHEAST OKLAHOMA WERE THE MOISTURE CONVERGENCE HAS NOT BEEN AS GREAT. THE AXIS OF GREATEST LOW-LEVEL STORM-RELATIVE HELICITY EXISTS FROM MUSKOGEE COUNTY NORTHEAST INTO THE NORTHWEST CORNER OF ARKANSAS. OVER THE NEXT FEW HOURS THE GREATEST TORNADO THREAT WILL LIKELY BE ALONG THIS AXIS. FORECAST ID= 08 .TSA... AR...NONE. OK...NONE.
Hazardous weather outlook, May 6, 1:00 PM CDT, 3 hours 47 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-071100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 100 PM CDT TUE MAY 6 2003 THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS MUCH OF EASTERN OKLAHOMA. .DAY ONE...THIS AFTERNOON AND TONIGHT SEVERE WEATHER OUTLOOK ...SEVERE WEATHER OUTBREAK EXPECTED THIS AFTERNOON AND EVENING ACROSS PORTIONS OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS... SURFACE LOW PRESSURE WAS LOCATED OVER NORTH-CENTRAL OKLAHOMA EARLY THIS AFTERNOON WITH A DRY LINE EXTENDING SOUTHWEST INTO SOUTHWEST OKLAHOMA. THUNDERSTORMS WILL LIKELY DEVELOP ALONG THE DRY LINE BY MID AFTERNOON ACROSS EASTERN OKLAHOMA...RAPIDLY BECOMING SEVERE. SUPERCELL THUNDERSTORMS ARE EXPECTED WITH HAIL UP TO THE SIZE OF BASEBALLS...DAMAGING DOWNBURST WINDS TO 70 MPH AND A FEW TORNADOES. THE GREATEST TORNADO THREAT THROUGH THIS EVENING WILL BE ACROSS FAR NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS...NORTH OF A BARTLESVILLE...FORT SMITH LINE. 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 AN ACTIVE SPRING WEATHER PATTERN WILL CONTINUE INTO THE WEEKEND AS A SERIES OF DISTURBANCES MOVES ACROSS THE SOUTHERN PLAINS AND A SURFACE BOUNDARY REMAINS OVER THE AREA. IT APPEARS THE BEST CHANCES OF SEVERE WEATHER WILL OCCUR WEDNESDAY NIGHT AND THURSDAY...AND AGAIN ON SATURDAY. A MORE STABLE PATTERN MAY FINALLY TAKE OVER BY EARLY NEXT WEEK. .SPOTTER / EMERGENCY MANAGEMENT ACTION STATEMENT... SPOTTER ACTIVATION WILL BE REQUIRED THIS AFTERNOON. A TORNADO WATCH IS IN EFFECT FOR PORTIONS OF NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS UNTIL 700 PM. EMERGENCY MANAGEMENT PERSONNEL SHOULD CONTINUE TO CLOSELY MONITOR THE LATEST WEATHER CONDITIONS...AS WARNINGS WILL LIKELY BE ISSUED LATER THIS AFTERNOON. ADDITIONAL WEATHER INFORMATION CAN BE FOUND AT... WWW.SRH.NOAA.GOV/TULSA
In the hours before
Special weather statement, May 6, 3:01 PM CDT, 1 hour 46 minutes before
OKZ049-053-073>076-070200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 301 PM CDT TUE MAY 6 2003 THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH #273 UNTIL 900 PM CDT TUESDAY EVENING FOR THE FOLLOWING AREAS: IN OKLAHOMA THIS WATCH INCLUDES 6 COUNTIES... IN SOUTHEAST OKLAHOMA: CHOCTAW HASKELL LATIMER LE FLORE PITTSBURG PUSHMATAHA THIS INCLUDES THE CITIES OF ANTLERS...CLAYTON...HUGO...MCALESTER... POTEAU...STIGLER AND WILBURTON.
Special weather statement, May 6, 3:55 PM CDT, 52 minutes before
ARZ001>002-010>011-019>020-029-OKZ054>072-070000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 355 PM CDT TUE MAY 6 2003 THE NATIONAL WEATHER SERVICE HAS CLEARED A PORTION OF TORNADO WATCH #269. AREAS CLEARED FROM THE TORNADO WATCH INCLUDE: IN OKLAHOMA 5 COUNTIES... IN NORTHEAST OKLAHOMA: CREEK OSAGE PAWNEE TULSA WASHINGTON THIS INCLUDES THE CITIES OF BARTLESVILLE...BRISTOW...BROKEN ARROW... PAWHUSKA...PAWNEE...SAND SPRINGS AND TULSA. TORNADO WATCH #269 REMAINS VALID UNTIL 700 PM CDT TUESDAY EVENING FOR THE FOLLOWING AREAS: IN ARKANSAS THIS WATCH INCLUDES 7 COUNTIES... IN NORTHWEST ARKANSAS: BENTON CARROLL CRAWFORD MADISON WASHINGTON IN WEST CENTRAL ARKANSAS: FRANKLIN SEBASTIAN IN OKLAHOMA THIS WATCH INCLUDES 14 COUNTIES... IN EAST CENTRAL OKLAHOMA: CHEROKEE MUSKOGEE OKFUSKEE SEQUOYAH IN NORTHEAST OKLAHOMA: ADAIR CRAIG DELAWARE MAYES NOWATA OKMULGEE OTTAWA ROGERS WAGONER IN SOUTHEAST OKLAHOMA: MCINTOSH THIS INCLUDES THE CITIES OF BENTONVILLE...BERRYVILLE...CEDARVILLE... CLAREMORE...EUFAULA...EUREKA SPRINGS...FAYETTEVILLE...FORT SMITH... HUNTSVILLE...JAY...MIAMI...MOUNTAINBURG...MUSKOGEE...NATURAL DAM... NOWATA...OKEMAH...OKMULGEE...OZARK...PRYOR...ROGERS...SALLISAW... SILOAM SPRINGS...SPRINGDALE...STILWELL...TAHLEQUAH...VAN BUREN... VINITA AND WAGONER.
Local storm report, May 6, 4:11 PM CDT, 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
0411 PM CDT TUE MAY 06 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0358 PM 5 E HENRYETTA OK 1.00 IN HAIL
05/06/03 OKMULGEE
0409 PM 3 W BOYNTON OK 1.00 IN HAIL
05/06/03 MUSKOGEE
SPLocal storm report, May 6, 4:20 PM CDT, 27 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
0420 PM CDT TUE MAY 06 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0419 PM 6 SW TAFT OK 0.75 IN HAIL
05/06/03 MUSKOGEE
SPLocal storm report, May 6, 4:29 PM CDT, 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
0429 PM CDT TUE MAY 06 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0425 PM BOYNTON OK 1.00 IN HAIL
05/06/03 MUSKOGEE
SPLocal storm report, May 6, 4:42 PM CDT, 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
0442 PM CDT TUE MAY 06 2003
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0441 PM PRYOR OK 0.88 IN HAIL
05/06/03 MAYES
SPThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 3:30 PM CDT | Severe Thunderstorm Warning | TSA | Okmulgee | 45 min |
| May 6, 3:50 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh | 55 min |
| May 6, 3:53 PM CDT | Severe Thunderstorm Warning | TSA | Wagoner | 52 min |
| May 6, 4:05 PM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 70 min |
| May 6, 4:18 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh, Pittsburg | 87 min |
| May 6, 4:19 PM CDT | Severe Thunderstorm Warning | TSA | Mayes, Rogers | 56 min |
| May 6, 4:39 PM CDT | Tornado Warning | TSA | Muskogee | 66 min |
| May 6, 4:56 PM CDT | Severe Thunderstorm Warning | TSA | Craig | 64 min |
| May 6, 5:10 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 50 min |
| May 6, 5:13 PM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee | 62 min |
| May 6, 5:15 PM CDT | Severe Thunderstorm Warning | TSA | Mayes | 45 min |
| May 6, 5:23 PM CDT | Tornado Warning | TSA | Sequoyah | 52 min |
| May 6, 5:39 PM CDT | Severe Thunderstorm Warning | TSA | Haskell, Latimer, Muskogee, Pittsburg | 81 min |
| May 6, 6:02 PM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 88 min |
| May 6, 6:13 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 77 min |
| May 6, 6:19 PM CDT | Severe Thunderstorm Warning | TSA | Adair | 41 min |
| May 6, 6:26 PM CDT | Tornado Warning | TSA | Adair | 34 min |
| May 6, 6:48 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 72 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2003Every 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.