Alert archive / Oklahoma / Flash Flood Warnings in 1999
Flash Flood Warning 75, NWS Tulsa, OK
NWS Tulsa, OK issued this flash flood warning at Jun 29, 1999, 2:42 PM CDT for Haskell County, Latimer County, Oklahoma. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Jun 29, 1999, 2:42 PM CDT (19:42 UTC)
- Expired
- Jun 29, 1999, 5:45 PM CDT
- In force
- 3 hr
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Haskell County, OK, Latimer County, OK
The nearest sounding before it
Norman, OK (KOUN), launched 12:00Z, 7.7 hours before the alert went out and 206 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
- 1032 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 234 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUL 291945 FFWTUL OKC061-077-292245- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TULSA OK 242 PM CDT TUE JUN 29 1999 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * FLASH FLOOD WARNING FOR HASKELL COUNTY IN SOUTHEAST OKLAHOMA LATIMER COUNTY IN SOUTHEAST OKLAHOMA * UNTIL 545 PM CDT * AT 242 PM CDT RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS MUCH OF LATIMER AND WESTERN HASKELL COUNTIES. THIS AREA OF RAINFALL WILL SPREAD EAST PRODUCING UP TO 3 INCHES OF RAIN THROUGH 6 PM. RADAR RAINFALL ESTIMATES INDICATE UP TO 2 INCHES OF RAIN HAS ALREADY FALLEN IN THESE AREAS. RED OAK...DAMON...BENGAL...HIGGINS...YANUSH...WILBURTON...KEOTA... WHITEFIELD...ENTERPRISE...MCCURTAIN...KINTA...LEQUIRE AND STIGLER AND ADJACENT COMMUNITIES MAY BE AFFECTED BY FLASH FLOODING. EXCESSIVE RUNOFF WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER MAY BE TOO DEEP TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. LAT...LON 3536 9486 3469 9506 3470 9549 3529 9542
What forecasters said that day
The local office's own words before this flash flood 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 flash flood warning went out at Jun 29, 12:40 PM CDT, 2 hours 2 minutes earlier.
Area forecast discussion, Jun 29, 12:40 PM CDT, 2 hours 2 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 1240 PM CDT TUE JUN 29 1999 CONVECTION HAS MOVED FAR ENOUGH EAST THAT AMPLE CLOUD COVER HAS MOVED OVER THE FA. WENT AHEAD AND ADJUSTED SKY CONDITION TO MOSTLY CLOUDY OVER ALL ZONES. WITH CONVECTION BATTLING DRIER AIR AS IT MOVES FURTHER EAST...WILL LET CHANCE POPS RIDE. CLOUDS MAY BE THIN ENOUGH OVER MOST PLACES TO LET FORECASTED HIGHS STAY UNCHANGED. UPDATED ZONES ALREADY SENT. FCSTID = 23 .TUL... AR...NONE. OK...NONE.
In the hours before
Special weather statement, Jun 29, 1:30 PM CDT, 1 hour 12 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-301100- EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 130 PM CDT TUE JUN 29 1999 A FEW SEVERE THUNDERSTORMS ARE EXPECTED ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS. THE STORMS WILL OCCUR THIS AFTERNOON PRIMARILY SOUTH OF THE CIMARRON AND MUSKOGEE TURNPIKES. HOWEVER...THE ACTIVITY WILL BECOME MORE NUMEROUS AND MORE WIDESPREAD OVER ALL OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS TONIGHT. .SYNOPSIS... A FRONT WILL REMAIN NEARLY STATIONARY ACROSS SOUTHEAST OKLAHOMA THIS AFTERNOON...BUT IT WILL DRIFT NORTHWARD AS A WARM FRONT TONIGHT. .DISCUSSION... NORTHEAST WINDS BROUGHT SLIGHTLY DRIER AIR MOVED INTO EASTERN OKLAHOMA AND NORTHWEST ARKANSAS EARLY THIS MORNING. HOWEVER...IT IS BEING DISPLACED BY WARM...MOIST AND UNSTABLE AIR WHICH HAS BEEN SPREADING NORTHWARD OUT OF TEXAS. AS THIS TROPICAL AIR MASS RETURNS TO EASTERN OKLAHOMA AND NORTHWEST ARKANSAS...IT WILL FUEL THE DEVELOPMENT OF STRONG TO SEVERE THUNDERSTORMS. THUNDERSTORMS HAVE ALREADY DEVELOPED EARLY THIS AFTERNOON ACROSS PARTS OF EASTERN OKLAHOMA...MAINLY SOUTH OF INTERSTATE 40...AND A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR A LARGE PART OF EASTERN OKLAHOMA AND WEST CENTRAL ARKANSAS. MOST OF THESE STORMS WILL BE PULSE-TYPE STORMS WHICH MAY DEVELOP RAPIDLY AND PRODUCE A DAMAGING WIND GUST BEFORE DISSIPATING. VERY HEAVY DOWNPOURS ARE POSSIBLE DUE TO THE SLOW MOVEMENT OF THE STORMS. HOWEVER...THE MORE ORGANIZED SEVERE WEATHER THREAT IS EXPECTED TO OCCUR TONIGHT. A COMPLEX OF STRONG TO SEVERE THUNDERSTORMS IS EXPECTED TO DEVELOP OVER NORTHWEST OKLAHOMA AND SOUTHWEST KANSAS THIS EVENING AND THEN PROPOGATE SOUTHEASTWARD AS IT IS FED BY A DEVELOPING LOW LEVEL JET. THE LEADING EDGE OF THE ACTIVITY MAY DEVELOP INTO A SQUALL LINE WITH THE POTENTIAL FOR DAMAGING WINDS. LARGE HAIL AND VERY HEAVY RAINS WILL ALSO BE A POSSIBILITY. .EMERGENCY MANAGEMENT AGENCY AND SPOTTER ACTIVATION... SPOTTER ACTIVATION IS LIKELY ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THIS AFTERNOON AND TONIGHT. THE MAIN TIME FRAME SHOULD BE THIS AFTERNOON IN THE SOUTHERN TWO THIRDS OF EASTERN OKLAHOMA AND WEST CENTRAL ARKANSAS THIS AFTERNOON. THE THREAT WILL BE ACROSS ALL OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS TONIGHT. CIVIL DEFENSE AGENCIES SHOULD MONITOR THE LATEST STATEMENTS AND FORECASTS CONCERNING THIS POTENTIALLY THREATENING WEATHER SITUATION.
Special weather statement, Jun 29, 1:30 PM CDT, 1 hour 12 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-301100- EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 130 PM CDT TUE JUN 29 1999 A FEW SEVERE THUNDERSTORMS ARE EXPECTED ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS. THE STORMS WILL OCCUR THIS AFTERNOON PRIMARILY SOUTH OF THE CIMARRON AND MUSKOGEE TURNPIKES. HOWEVER...THE ACTIVITY WILL BECOME MORE NUMEROUS AND MORE WIDESPREAD OVER ALL OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS TONIGHT. .SYNOPSIS... A FRONT WILL REMAIN NEARLY STATIONARY ACROSS SOUTHEAST OKLAHOMA THIS AFTERNOON...BUT IT WILL DRIFT NORTHWARD AS A WARM FRONT TONIGHT. .DISCUSSION... NORTHEAST WINDS BROUGHT SLIGHTLY DRIER AIR MOVED INTO EASTERN OKLAHOMA AND NORTHWEST ARKANSAS EARLY THIS MORNING. HOWEVER...IT IS BEING DISPLACED BY WARM...MOIST AND UNSTABLE AIR WHICH HAS BEEN SPREADING NORTHWARD OUT OF TEXAS. AS THIS TROPICAL AIR MASS RETURNS TO EASTERN OKLAHOMA AND NORTHWEST ARKANSAS...IT WILL FUEL THE DEVELOPMENT OF STRONG TO SEVERE THUNDERSTORMS. THUNDERSTORMS HAVE ALREADY DEVELOPED EARLY THIS AFTERNOON ACROSS PARTS OF EASTERN OKLAHOMA...MAINLY SOUTH OF INTERSTATE 40...AND A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR A LARGE PART OF EASTERN OKLAHOMA AND WEST CENTRAL ARKANSAS. MOST OF THESE STORMS WILL BE PULSE-TYPE STORMS WHICH MAY DEVELOP RAPIDLY AND PRODUCE A DAMAGING WIND GUST BEFORE DISSIPATING. VERY HEAVY DOWNPOURS ARE POSSIBLE DUE TO THE SLOW MOVEMENT OF THE STORMS. HOWEVER...THE MORE ORGANIZED SEVERE WEATHER THREAT IS EXPECTED TO OCCUR TONIGHT. A COMPLEX OF STRONG TO SEVERE THUNDERSTORMS IS EXPECTED TO DEVELOP OVER NORTHWEST OKLAHOMA AND SOUTHWEST KANSAS THIS EVENING AND THEN PROPOGATE SOUTHEASTWARD AS IT IS FED BY A DEVELOPING LOW LEVEL JET. THE LEADING EDGE OF THE ACTIVITY MAY DEVELOP INTO A SQUALL LINE WITH THE POTENTIAL FOR DAMAGING WINDS. LARGE HAIL AND VERY HEAVY RAINS WILL ALSO BE A POSSIBILITY. .EMERGENCY MANAGEMENT AGENCY AND SPOTTER ACTIVATION... SPOTTER ACTIVATION IS LIKELY ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THIS AFTERNOON AND TONIGHT. THE MAIN TIME FRAME SHOULD BE THIS AFTERNOON IN THE SOUTHERN TWO THIRDS OF EASTERN OKLAHOMA AND WEST CENTRAL ARKANSAS THIS AFTERNOON. THE THREAT WILL BE ACROSS ALL OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS TONIGHT. CIVIL DEFENSE AGENCIES SHOULD MONITOR THE LATEST STATEMENTS AND FORECASTS CONCERNING THIS POTENTIALLY THREATENING WEATHER SITUATION.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 1:56 PM CDT | Severe Thunderstorm Warning | TSA | Latimer, Pittsburg | 49 min |
| Jun 29, 1:56 PM CDT | Severe Thunderstorm Warning | TSA | Latimer, Pittsburg | 34 min |
| Jun 29, 3:05 PM CDT | Severe Thunderstorm Warning | TSA | Haskell, LeFlore, Sequoyah | 40 min |
Nearby
Flash Flood Warnings in Oklahoma, 1999Every flash flood warning in 1999
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.