Alert archive / Oklahoma / Flash Flood Warnings in 1999
Flash Flood Warning 34, NWS Tulsa, OK
NWS Tulsa, OK issued this flash flood warning at Apr 26, 1999, 1:49 PM CDT for Craig County, Ottawa County, Oklahoma. It was in force for 116 min. 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
- Apr 26, 1999, 1:49 PM CDT (18:49 UTC)
- Expired
- Apr 26, 1999, 3:45 PM CDT
- In force
- 116 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Craig County, OK, Ottawa County, OK
The radar
The Tulsa radar (KINX), 85 km from the middle of the area, began a volume at 18:51 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.
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 6.8 hours before the alert went out and 115 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
- 248 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 477 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 137 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTSA 261855 FFWTUL OKC035-115-262045- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TULSA OK 149 PM CDT MON APR 26 1999 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * FLASH FLOOD WARNING FOR CRAIG COUNTY IN NORTHEAST OKLAHOMA OTTAWA COUNTY IN NORTHEAST OKLAHOMA * UNTIL 345 PM CDT * AT 149 PM CDT RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN CONTINUING ACROSS ALL OF CRAIG AND OTTAWA COUNTIES. AUTOMATED RAIN GAGE REPORTS INDICATE THAT 1 TO 3 INCHES OF RAIN HAVE FALLEN THIS MORNING. THIS WAS IN ADDITION TO THE HEAVY RAIN WHICH FELL SUNDAY. ADDITIONAL RAINFALL AMOUNTS OF UP TO 1 INCH MAY OCCUR BEFORE THE RAIN ENDS BY 330 PM. FLASH FLOODING IS LIKELY ALREADY OCCURRING AND THE ADDITIONAL RAINFALL WILL ONLY WORSEN THE CURRENT FLOODING SITUATION. WELCH...BLUEJACKET...WHITE OAK...VINITA...QUAPAW...WYANDOTTE...NARCISSA...FAIRLAND...AFTON...COM MERCE...MIAMI AND ADJACENT COMMUNITIES MAY BE AFFECTED BY FLASH FLOODING. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. 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 3698 9540 3654 9541 3670 9463 3698 9463
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 Apr 26, 1:25 PM CDT, 24 minutes earlier.
Area forecast discussion, Apr 26, 1:25 PM CDT, 24 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 125 PM CDT MON APR 26 1999 BUZZ SAW CONTINUES THIS AFTERNOON. UPDATED ZONES ALREADY TO REFLECT LATEST WATCH SITUATION AND RADAR TRENDS. AWIPS AND RADAR NOW RUNNING LIKE A CHAMP. HOWIESON FCSTID = 44 .TUL... AR...FFA ALL ZONES THIS AFTERNOON. OK...FFA ALL ZONES THIS AFTERNOON.
In the hours before
Local storm report, Apr 26, 11:45 AM CDT, 2 hours 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1145 AM CDT MON APR 26 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0900 AM OKEMAH OK WIND DAMAGE
04/26/99 OKFUSKEE SMALL TREE LIMBS DOWN
ABOUT 1 INCH IN DIAMETER.
1118 AM BIXBY OK WIND DAMAGE
04/26/99 TULSA MOBILE TURNED OVER NEAR
181ST AND YALE. NOT
OCCUPIED AT THE TIME.Local storm report, Apr 26, 11:55 AM CDT, 1 hour 54 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1155 AM CDT MON APR 26 1999
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0900 AM OKEMAH OK WIND DAMAGE
04/26/99 OKFUSKEE SMALL TREE LIMBS DOWN
ABOUT 1 INCH IN DIAMETER.
1118 AM BIXBY OK WIND DAMAGE
04/26/99 TULSA MOBILE HOME OVERTURNED
AT 181ST AND YALE. NOT
OCCUPIED AT THE TIME.Special weather statement, Apr 26, 1:00 PM CDT, 49 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-271100- EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 100 PM CDT MON APR 26 1999 ...FLASH FLOODING WILL CONTINUE THROUGH TODAY... ...ISOLATED SEVERE THUNDERSTORMS WILL BE POSSIBLE TODAY AND THIS EVENING OVER MUCH OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS... .SYNOPSIS... AN UPPER LOW OVER SOUTHEAST COLORADO WILL MOVE THROUGH SOUTHERN KANSAS INTO SOUTHWESTERN MISSOURI BY TUESDAY MORNING. NUMEROUS STRONG TO OCCASIONALLY SEVERE THUNDERSTORMS AHEAD OF THIS FEATURE WILL CONTINUING MOVING THROUGH EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THROUGH EARLY TONIGHT. .DISCUSSION... A LARGE AREA OF SHOWERS AND THUNDERSTORMS WILL CONTINUE TO INCREASE IN INTENSITY THIS AFTERNOON OVER FAR NORTHEASTERN OKLAHOMA AND NORTHWEST ARKANSAS AS THEY ENCOUNTER A MORE UNSTABLE AIRMASS. ISOLATED SEVERE THUNDERSTORMS...CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING DOWNBURST WINDS...WILL BE POSSIBLE THROUGH THE LATE AFTERNOON. LOCALIZED FLASH FLOODING WILL BE POSSIBLE AS WELL...ESPECIALLY OVER FAR NORTHEAST OKLAHOMA WHERE EXCESSIVE RAINFALL HAS OCCURRED OVER THE PAST 2 DAYS. AS THE UPPER LOW MOVES EAST...COLDER MID-LEVEL TEMPERATURES WILL OVERSPREAD THE AREA LATE THIS AFTERNOON. DENSE CLOUD COVER FROM THIS MORNINGS CONVECTION WILL HAMPER WARMING THROUGH MUCH OF THE AFTERNOON...BUT ENOUGH CLEARING IS EXPECTED FOR THE ATMOSPHERE TO BECOME INCREASINGLY UNSTABLE BY LATE AFTERNOON. SCATTERED THUNDERSTORMS SHOULD REDEVELOP OVER PARTS OF KANSAS AND CENTRAL AND EASTERN OKLAHOMA BY LATE AFTERNOON ALONG AND AHEAD OF THE DRYLINE...AND EVENTUALLY MOVE INTO PARTS OF NORTHWEST ARKANSAS DURING THE EVENING. GIVEN THE VERY COLD TEMPERATURES ALOFT...LARGE HAIL AND DAMAGING WINDS WILL BE THE PRIMARY SEVERE WEATHER THREAT FROM THESE MULTICELL THUNDERSTORMS. WITH THE LOSS OF DAYTIME HEATING...THUNDERSTORMS SHOULD DECREASE IN STRENGTH AND COVERAGE BY LATE EVENING. .EMERGENCY MANAGEMENT AGENCY AND SPOTTER ACTIVATION... SPOTTER ACTIVATION IS CURRENTLY IN EFFECT AND MAY CONTINUE INTO THE EVENING.
Special weather statement, Apr 26, 1:00 PM CDT, 49 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-271100- EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 100 PM CDT MON APR 26 1999 ...FLASH FLOODING WILL CONTINUE THROUGH TODAY... ...ISOLATED SEVERE THUNDERSTORMS WILL BE POSSIBLE TODAY AND THIS EVENING OVER MUCH OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS... .SYNOPSIS... AN UPPER LOW OVER SOUTHEAST COLORADO WILL MOVE THROUGH SOUTHERN KANSAS INTO SOUTHWESTERN MISSOURI BY TUESDAY MORNING. NUMEROUS STRONG TO OCCASIONALLY SEVERE THUNDERSTORMS AHEAD OF THIS FEATURE WILL CONTINUING MOVING THROUGH EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THROUGH EARLY TONIGHT. .DISCUSSION... A LARGE AREA OF SHOWERS AND THUNDERSTORMS WILL CONTINUE TO INCREASE IN INTENSITY THIS AFTERNOON OVER FAR NORTHEASTERN OKLAHOMA AND NORTHWEST ARKANSAS AS THEY ENCOUNTER A MORE UNSTABLE AIRMASS. ISOLATED SEVERE THUNDERSTORMS...CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING DOWNBURST WINDS...WILL BE POSSIBLE THROUGH THE LATE AFTERNOON. LOCALIZED FLASH FLOODING WILL BE POSSIBLE AS WELL...ESPECIALLY OVER FAR NORTHEAST OKLAHOMA WHERE EXCESSIVE RAINFALL HAS OCCURRED OVER THE PAST 2 DAYS. AS THE UPPER LOW MOVES EAST...COLDER MID-LEVEL TEMPERATURES WILL OVERSPREAD THE AREA LATE THIS AFTERNOON. DENSE CLOUD COVER FROM THIS MORNINGS CONVECTION WILL HAMPER WARMING THROUGH MUCH OF THE AFTERNOON...BUT ENOUGH CLEARING IS EXPECTED FOR THE ATMOSPHERE TO BECOME INCREASINGLY UNSTABLE BY LATE AFTERNOON. SCATTERED THUNDERSTORMS SHOULD REDEVELOP OVER PARTS OF KANSAS AND CENTRAL AND EASTERN OKLAHOMA BY LATE AFTERNOON ALONG AND AHEAD OF THE DRYLINE...AND EVENTUALLY MOVE INTO PARTS OF NORTHWEST ARKANSAS DURING THE EVENING. GIVEN THE VERY COLD TEMPERATURES ALOFT...LARGE HAIL AND DAMAGING WINDS WILL BE THE PRIMARY SEVERE WEATHER THREAT FROM THESE MULTICELL THUNDERSTORMS. WITH THE LOSS OF DAYTIME HEATING...THUNDERSTORMS SHOULD DECREASE IN STRENGTH AND COVERAGE BY LATE EVENING. .EMERGENCY MANAGEMENT AGENCY AND SPOTTER ACTIVATION... SPOTTER ACTIVATION IS CURRENTLY IN EFFECT AND MAY CONTINUE INTO THE EVENING.
Special weather statement, Apr 26, 1:15 PM CDT, 34 minutes before
OKZ077-261835- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 115 PM CDT MON APR 26 1999 SEVERE THUNDERSTORM WATCH NUMBER 179 FOR MCCURTAIN OKLAHOMA COUNTY HAS BEEN CANCELLED. THE SHOWERS AND THUNDERSTORMS THAT WERE LOCATED ACROSS SOUTHEAST OKLAHOMA HAVE MOVED TO THE NORTH OUT OF THE AREA.
Special weather statement, Apr 26, 1:15 PM CDT, 34 minutes before
OKZ077-261835- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 115 PM CDT MON APR 26 1999 SEVERE THUNDERSTORM WATCH NUMBER 179 FOR MCCURTAIN OKLAHOMA COUNTY HAS BEEN CANCELLED. THE SHOWERS AND THUNDERSTORMS THAT WERE LOCATED ACROSS SOUTHEAST OKLAHOMA HAVE MOVED TO THE NORTH OUT OF THE AREA.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 26, 9:21 AM CDT | Severe Thunderstorm Warning | TSA | Creek | 24 min |
| Apr 26, 9:45 AM CDT | Flash Flood Warning | TSA | Creek, McIntosh, Okfuskee, Okmulgee, Tulsa | 4 hr |
| Apr 26, 9:45 AM CDT | Flash Flood Warning | TSA | Pittsburg | 4 hr |
| Apr 26, 11:27 AM CDT | Flash Flood Warning | TSA | Craig, Mayes, Nowata, Rogers, Wagoner, Washington | 3 hr |
| Apr 26, 11:27 AM CDT | Flash Flood Warning | TSA | Osage | 3 hr |
| Apr 26, 11:27 AM CDT | Flash Flood Warning | TSA | Muskogee | 3 hr |
| Apr 26, 11:57 AM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 48 min |
| Apr 26, 12:33 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 42 min |
| Apr 26, 6:34 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 41 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; radar from the NEXRAD Level II archive.