Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 59, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Apr 19, 2003, 11:35 PM CDT for LeFlore County, Oklahoma. It was in force for 40 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 19, 2003, 11:35 PM CDT (04:35 UTC)
- Expired
- Apr 20, 2003, 12:15 AM CDT
- In force
- 40 min
- Issued by
- NWS Tulsa, OK
- Area
- Counties, with a storm outline in the text
County LeFlore County, OK
The radar
The Western Arkansas radar (KSRX), 73 km from the middle of the area, began a volume at 04:38 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 19, 8:55 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 4.6 hours before the alert went out and 255 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
- 3665 m above ground
- 0-6 km bulk shear
- 87 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 104 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KTSA 200435 SVRTUL OKC079-200515- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 1135 PM CDT SAT APR 19 2003 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN LE FLORE COUNTY IN SOUTHEAST OKLAHOMA * UNTIL 1215 AM CDT * AT 1135 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 10 MILES SOUTH OF WHITESBORO...MOVING EAST AT 50 MPH. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...OCTAVIA...BIG CEDAR...MUSE AND WHITESBORO. HAIL TO THE SIZE OF PENNIES 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 3471 9502 3444 9501 3462 9412 3495 9420
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 19, 10:30 PM CDT, 1 hour 5 minutes earlier.
Area forecast discussion, Apr 19, 10:30 PM CDT, 1 hour 5 minutes before
MESOSCALE FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OKLAHOMA 1030 PM CDT SAT APR 19 2003 AT 10PM THE COLD FRONT EXTENDED FROM 20 MILES EAST OF COFFEYVILLE TO TULSA TO BOLEY. THE DRY LINE EXTENDED FROM OKEMAH TO JUST WEST OF DURANT. THE COLD FRONT WAS MOVING SOUTHEAST AT 25 MPH AND WILL BE ALONG A LINE FROM NEAR JOPLIN TO MUSKOGEE TO NEAR DURANT AT 1AM. THE DRYLINE WILL BE ABOUT STATIONARY AND BE ABSORBED BY THE FRONT. THUNDERSTORMS HAVE CONTINUED TO EXPAND INTO NORTHWEST ARKANSAS FROM CARROLL COUNTY INTO THE FORT SMITH AREA. THESE STORMS ARE MOVING INTO LESS INSTABILITY...BUT THE FAST WIND FIELDS ALOFT WILL PROMOTE A WIND DAMAGE POTENTIAL. THE STORMS ACROSS SOUTHEAST OKLAHOMA SHOULD CONTINUE WITH A MARGINAL HAIL AND WIND THREAT AS WELL. WEAKENING LOW-LEVEL FLOW WILL LIMIT LOW-LEVEL STORM ROTATION POTENTIAL...BUT MID-LEVEL ROTATIONS WILL OCCUR. NEW STORMS MAY STILL DEVELOP DOWN OR JUST BEHIND THE COLD FRONT IN THE NEXT 1 TO 2 HOURS...SO NO PARTS OF THE CURRENT WATCH ARE BEING DROPPED AT THIS TIME. FORECAST ID= 8 .TSA... AR...NONE. OK...NONE.
Hazardous weather outlook, Apr 19, 1:30 PM CDT, 10 hours 5 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>058-060>076-201000- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 130 PM CDT SAT APR 19 2003 THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS MUCH OF EASTERN OKLAHOMA. .DAY ONE...TODAY ...SEVERE THUNDERSTORMS PROBABLE ACROSS MUCH OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS... ...SUPERCELLS THUNDERSTORMS EXPECTED BY LATE AFTERNOON AND EARLY EVENING WITH THE THREAT FOR TORNADOES... ANOTHER ROUND OF STRONG TO SEVERE THUNDERSTORMS WILL DEVELOP THIS AFTERNOON IN CENTRAL OKLAHOMA AHEAD OF A DRY LINE AND MOVE NORTHEAST INTO EASTERN OKLAHOMA BY LATE AFTERNOON OR EARLY EVENING. THE THUNDERSTORMS WILL INTERSECT WITH A FRONTAL BOUNDARY LEFT OVER FROM EARLIER CONVECTION. THIS WILL PRODUCE A THREAT FOR LARGE DAMAGING HAIL AND TORNADOES. RESIDENTS ACROSS EASTERN OKLAHOMA SHOULD CONTINUE TO CLOSELY MONITOR FORECASTS THIS AFTERNOON FOR THE LATEST UPDATES. 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...SUNDAY THROUGH FRIDAY THE NEXT SIGNIFICANT CHANCE FOR THUNDERSTORMS WILL BE ON WEDNESDAY AS A STRONG UPPER LOW MOVES INTO THE FOUR CORNERS REGION. .SPOTTER / EMERGENCY MANAGEMENT ACTION STATEMENT...SPOTTER ACTIVATION WILL BE REQUIRED THIS AFTERNOON. A TORNADO WATCH IS ALREADY IN EFFECT FOR PORTIONS OF CENTRAL AND WESTERN OKLAHOMA THIS AFTERNOON. EMERGENCY MANAGEMENT PERSONNEL SHOULD CONTINUE TO CLOSELY MONITOR FORECASTS FOR ADDITIONAL UPDATES. ADDITIONAL WEATHER INFORMATION CAN BE FOUND AT... WWW.SRH.NOAA.GOV/TULSA GW
In the hours before
Special weather statement, Apr 19, 8:53 PM CDT, 2 hours 42 minutes before
ARZ001-010-019-029-OKZ049-053-055>058-060>063-065>076-200700- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 853 PM CDT SAT APR 19 2003 THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH #135 UNTIL 200 AM CDT SUNDAY MORNING FOR THE FOLLOWING AREAS: IN ARKANSAS THIS WATCH INCLUDES 4 COUNTIES... IN NORTHWEST ARKANSAS: BENTON CRAWFORD WASHINGTON IN WEST CENTRAL ARKANSAS: SEBASTIAN IN OKLAHOMA THIS WATCH INCLUDES 22 COUNTIES... IN EAST CENTRAL OKLAHOMA: CHEROKEE MUSKOGEE OKFUSKEE SEQUOYAH IN NORTHEAST OKLAHOMA: ADAIR CRAIG DELAWARE MAYES NOWATA OKMULGEE OTTAWA ROGERS TULSA WAGONER WASHINGTON IN SOUTHEAST OKLAHOMA: CHOCTAW HASKELL LATIMER LE FLORE MCINTOSH PITTSBURG PUSHMATAHA THIS INCLUDES THE CITIES OF ANTLERS...BARTLESVILLE...BENTONVILLE... BROKEN ARROW...CEDARVILLE...CLAREMORE...CLAYTON...EUFAULA... FAYETTEVILLE...FORT SMITH...HUGO...JAY...MCALESTER...MIAMI... MOUNTAINBURG...MUSKOGEE...NATURAL DAM...NOWATA...OKEMAH...OKMULGEE... POTEAU...PRYOR...ROGERS...SALLISAW...SAND SPRINGS...SILOAM SPRINGS... SPRINGDALE...STIGLER...STILWELL...TAHLEQUAH...TULSA...VAN BUREN... VINITA...WAGONER AND WILBURTON.
Special weather statement, Apr 19, 11:04 PM CDT, 31 minutes before
ARZ002-200430- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 1104 PM CDT SAT APR 19 2003 ...SIGNIFICANT WEATHER ALERT IN EFFECT FOR CARROLL COUNTY UNTIL 1130 PM CDT... AT 1104 PM CDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 3 MILES EAST OF RULE...MOVING EAST AT 40 MPH. THIS STORM WILL BE CAPABLE OF PRODUCING WIND GUSTS TO 50 MPH. THE COMMUNITIES OF DENVER...GREEN FOREST...CONNOR...CARROLLTON...RULE AND COIN WILL BE AFFECTED BY THIS STORM THROUGH 1130 PM CDT.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 19, 7:12 PM CDT | Tornado Warning | TSA | Pittsburg | 28 min |
| Apr 19, 7:28 PM CDT | Tornado Warning | TSA | Pittsburg | 32 min |
| Apr 19, 7:40 PM CDT | Tornado Warning | TSA | Haskell | 35 min |
| Apr 19, 7:56 PM CDT | Tornado Warning | TSA | Latimer, Pittsburg | 34 min |
| Apr 19, 8:12 PM CDT | Tornado Warning | TSA | Haskell | 33 min |
| Apr 19, 8:28 PM CDT | Tornado Warning | TSA | Latimer, Pittsburg | 32 min |
| Apr 19, 8:43 PM CDT | Tornado Warning | TSA | Haskell | 62 min |
| Apr 19, 8:59 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 46 min |
| Apr 19, 9:02 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 28 min |
| Apr 19, 9:18 PM CDT | Flash Flood Warning | TSA | Haskell, Sequoyah | 3 hr |
| Apr 19, 9:18 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 57 min |
| Apr 19, 9:38 PM CDT | Tornado Warning | TSA | LeFlore | 67 min |
| Apr 19, 9:45 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 15 min |
| Apr 19, 10:02 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 43 min |
| Apr 19, 11:43 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore, Sequoyah | 47 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.