Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 29, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Apr 6, 2003, 1:27 PM CDT for Pittsburg County, Oklahoma. It was in force for 48 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
- Apr 6, 2003, 1:27 PM CDT (18:27 UTC)
- Expired
- Apr 6, 2003, 2:15 PM CDT
- In force
- 48 min
- Issued by
- NWS Tulsa, OK
- Area
- Counties, with a storm outline in the text
County Pittsburg County, OK
The radar
The Norman radar (KTLX), 124 km from the middle of the area, began a volume at 18:28 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 |
|---|---|---|---|
| Apr 6, 9:45 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 12:00Z, 6.5 hours before the alert went out and 131 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 710 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 498 m²/s²
- 0-3 km storm-relative helicity
- 695 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.3
The text
As transmitted, in the capitals the NWS used until 2016.
324 WUUS54 KTSA 061827 SVRTUL OKC121-061915- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 127 PM CDT SUN APR 6 2003 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WESTERN AND NORTHERN PITTSBURG COUNTY IN SOUTHEAST OKLAHOMA * UNTIL 215 PM CDT * AT 127 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 8 MILES WEST OF ASHLAND...MOVING NORTHEAST AT 45 MPH. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...ASHLAND... HAYWOOD...SCIPIO...CROWDER...INDIANOLA AND CANADIAN. HAIL TO THE SIZE OF NICKELS 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 3479 9633 3466 9618 3513 9549 3531 9569
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 Apr 6, 1:18 PM CDT, 9 minutes earlier.
Area forecast discussion, Apr 6, 1:18 PM CDT, 9 minutes before
MESOSCALE FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OKLAHOMA 118 PM CDT SUN APR 6 2003 ...TORNADO POTENTIAL IN FAR SOUTHEAST OKLAHOMA... THROUGH MID AFTERNOON CAPES WILL BE AROUND 2000 J/KG WITH AMPLE DEEP LAYER SHEAR TO SUPPORT SUPERCELLS ALONG AND SOUTH OF THE WARM FRONT WHICH WAS ACROSS SOUTHEAST OKLAHOMA. THIS FRONT WILL DRIFT ONLY SLOWLY NORTH AND BY 21Z IT WILL LIKELY STILL BE NORTHWEST-SOUTHEAST ACROSS PUSMAHTAH COUNTY. THE GREATEST TORNADO THREAT WILL BE AS CELLS PASS THROUGH THE SURFACE FRONTAL POSITION... WITH A RAPID DECREASE IN TORNADO POTENTIAL AS THE STORM MOVE FURTHER INTO THE COOL AIR. AT 1815Z THE CELL APPROACHING PUSHMATAHA COUNTY WAS A SUPERCELL AND HAD PRODUCED GOLFBALL SIZE HAIL AND WILL HAVE TO BE MONITORED FOR STORM-SCALE ROTATION. FORECAST ID= 8 .TSA... AR...NONE. OK...NONE.
Hazardous weather outlook, Apr 6, 1:00 PM CDT, 27 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-071100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 100 PM CDT SUN APR 6 2003 THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS MUCH OF EASTERN OKLAHOMA. .DAY ONE...THROUGH TONIGHT SEVERE WEATHER OUTLOOK ...TORNADO THREAT IN SOUTHEAST OKLAHOMA... ...SEVERE THUNDERSTORMS POSSIBLE IN MUCH OF THE AREA... SUPERCELL THUNDERSTORMS WILL OCCUR IN SOUTHEAST OKLAHOMA THIS AFTERNOON ALONG AND SOUTH OF A WARM FRONT AND AHEAD OF DRY LINE THAT IS MOVING IN FROM THE WEST. THERE IS THE POTENTIAL FOR TORNADIC STORMS THIS AFTERNOON IN SOUTHEAST OKLAHOMA..ESPECIALLY ALONG AND SOUTH OF A MCALESTER TO PAGE LINE. FURTHER NORTH ACROSS THE REMAINDER OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS...UNSTABLE AIR WAS RIDING OVER THE TOP OF THE COOL AIR NEAR THE GROUND AND AREAS OF THUNDERSTORMS WILL OCCUR THIS AFTERNOON AND EARLY TONIGHT AS THE MAIN UPPER-LEVEL SYSTEM APPROACHES. A FEW OF THESE STORMS WILL BE SEVERE WITH LARGE HAIL BEING IN THE PRIMARY THREAT. THE THREAT FOR SEVERE WEATHER WILL END FROM WEST TO EAST ACROSS THE AREA BY MIDNIGHT AS DRY LINE AND A COLD FRONT SWEEP THROUGH. SEVERE THUNDERSTORM AND TORNADO WARNING PROBABILITIES 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...MON THROUGH SAT NO HAZARDOUS WEATHER IS EXPECTED. .SPOTTER / EMERGENCY MANAGEMENT ACTION STATEMENT... EMERGENCY MANAGEMENT AGENCIES IN EASTERN OKLAHOMA AND NORTHWEST ARKANSAS SHOULD ALREADY BE ACTIVELY MONITORING THE PROGRESS OF THIS EVENT. SPOTTERS SHOULD BE READY FOR IMMEDIATE ACTIVATION... ESPECIALLY IN SOUTHEAST OKLAHOMA. ADDITIONAL WEATHER INFORMATION CAN BE FOUND AT... WWW.SRH.NOAA.GOV/TULSA
In the hours before
Special weather statement, Apr 6, 9:15 AM CDT, 4 hours 12 minutes before
OKZ060-064-061445- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 915 AM CDT SUN APR 6 2003 ...SIGNIFICANT WEATHER ALERT IN EFFECT FOR TULSA AND CREEK COUNTIES UNTIL 945 AM CDT... AT 914 AM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM NEAR KIEFER...MOVING NORTHEAST AT 40 MPH. THIS STORM WILL BE CAPABLE OF PRODUCING SMALL HAIL AND ADDITIONAL HEAVY RAIN AS IT MOVES THROUGH THE TULSA METROPOLITAN AREA. THE HEAVY RAIN WILL CAUSE PONDING OF WATER AND LOCALIZED FLOODING OF LOW LYING AREAS AND POOR DRAINAGE AREAS.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 7:18 AM CDT | Severe Thunderstorm Warning | TSA | Okfuskee | 57 min |
| Apr 6, 7:51 AM CDT | Severe Thunderstorm Warning | TSA | Okmulgee | 39 min |
| Apr 6, 8:26 AM CDT | Severe Thunderstorm Warning | TSA | Muskogee, Wagoner | 64 min |
| Apr 6, 10:25 AM CDT | Severe Thunderstorm Warning | TSA | Mayes | 50 min |
| Apr 6, 1:31 PM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 44 min |
| Apr 6, 2:10 PM CDT | Severe Thunderstorm Warning | TSA | Haskell, Pittsburg | 50 min |
| Apr 6, 2:14 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore, Pushmataha | 61 min |
| Apr 6, 2:52 PM CDT | Severe Thunderstorm Warning | TSA | Choctaw | 53 min |
| Apr 6, 3:12 PM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 48 min |
| Apr 6, 3:17 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 28 min |
| Apr 6, 3:21 PM CDT | Tornado Warning | TSA | Pushmataha | 24 min |
| Apr 6, 3:49 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 41 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.