Alert archive / Arkansas / Flash Flood Warnings in 1999
Flash Flood Warning 84, NWS Tulsa, OK
NWS Tulsa, OK issued this flash flood warning at Jul 1, 1999, 11:15 AM CDT for Carroll County, Arkansas. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 1, 1999, 11:15 AM CDT (16:15 UTC)
- Expired
- Jul 1, 1999, 1:30 PM CDT
- In force
- 2 hr
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County Carroll County, AR
The radar
The Springfield radar (KSGF), 100 km from the middle of the area, began a volume at 16:18 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, 4.3 hours before the alert went out and 66 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
- 1227 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 839 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 332 m²/s²
- 0-3 km storm-relative helicity
- 339 m²/s²
- Significant tornado parameter
- 1.6
- Supercell composite
- 9.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUL 011616 FFWTUL ARC015-011830- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE TULSA OK 1115 AM CDT THU JUL 1 1999 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * FLASH FLOOD WARNING FOR CARROLL COUNTY IN NORTHWEST ARKANSAS * UNTIL 130 PM CDT * AT 1115 AM CDT RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN OVER CARROLL COUNTY. AN ESTIMATED ONE TO TWO INCHES OF HAS ALREADY FALLEN AND AN ADDITIONAL INCH OR TWO WILL BE POSSIBLE. *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 CRO.SS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. LAT...LON 3645 9366 3627 9373 3560 9146 3594 9132
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 Jul 1, 10:40 AM CDT, 35 minutes earlier.
Area forecast discussion, Jul 1, 10:40 AM CDT, 35 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 1040 AM CDT THU JUL 1 1999 JUST UPDATED THE ZONES AGAIN TO REMOVE 10AM EXPIRATION WATCH. TWO STORMS OVER WESTERN OSAGE COUNTY HAVE NOW BECOME ONE AND MAY STILL PRODUCE SOME PROBLEMS BUT WIDESPREAD ACTIVITY NOT LIKELY SO LET THAT WATCH GO. 200PM WATCH STILL IN EFFECT AND WILL REQUIRE ANOTHER UPDATE LATER. OTHERWISE NO MAJOR CHANGES MADE AT THIS TIME. LEFT THE FLASH FLOOD WATCH ALONE FOR NOW. HOWIESON FCSTID = 44 .TUL... AR...FLASH FLOOD WATCH FOR THIS MORNING FOR ZONES ARZ001>002... ARZ010>011...ARZ019>020...ARZ029. OK...FLASH FLOOD WATCH FOR THIS MORNING FOR ZONES OKZ054>076.
In the hours before
Special weather statement, Jul 1, 6:10 AM CDT, 5 hours 5 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-021100- EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 610 AM CDT THU JUL 1 1999 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 AM FOR OSAGE... PAWNEE AND CREEK COUNTIES IN NORTHEAST OKLAHOMA... ...A FLASH FLOOD WATCH IS IN EFFECT FOR THIS MORNING FOR MUCH OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS... ...A FEW SEVERE THUNDERSTORMS ARE EXPECTED OVER NORTHEAST OKLAHOMA THIS MORNING... .SYNOPSIS... EARLY THIS MORNING LOW PRESSURE WAS LOCATED OVER THE TEXAS AND OKLAHOMA PANHANDLES. A STRONG LOW LEVEL JET HAS DEVELOPED OVERNIGHT OVER THE SOUTHERN PLAINS AHEAD OF THIS FEATURE. THIS JET COMBINED WITH APPROACHING RELATIVELY STRONG WINDS IN THE MID LEVELS OF THE ATMOSPHERE WILL PROVIDE AN ENVIRONMENT FAVORABLE FOR SEVERE THUNDERSTORMS OVER NORTHEAST OKLAHOMA THIS MORNING. WIND FIELDS WILL WEAKEN SOMEWHAT THIS AFTERNOON AND TONIGHT AND WARMING MID LEVELS OF THE ATMOSPHERE WILL ACT TO SUPPRESS THE REDEVELOPMENT OF THUNDERSTORMS LATER IN THE DAY AND OVERNIGHT TONIGHT. .DISCUSSION... A COMPLEX OF STRONG TO SEVERE THUNDERSTORMS FORMED OVER SOUTHWEST KANSAS OVERNIGHT. THE LEADING EDGE OF THIS COMPLEX OF STORMS IS EXPECTED TO DEVELOP INTO A SQUALL LINE AND MOVE SOUTHEAST ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THIS MORNING. THE THUNDERSTORMS WILL LIKELY WEAKEN AS THEY CROSS THE AREA. HOWEVER...THEY WILL LIKELY REMAIN STRONG ENOUGH TO PRODUCE SOME DAMAGING WINDS AND MARGINALLY SEVERE HAIL ACROSS NORTHEAST OKLAHOMA . THE STORMS WILL ALSO BRING A PERIOD OF VERY HEAVY RAINFALL WHICH COMBINED WITH SOILS THAT ARE SATURATED FROM LAST MORNINGS RAIN COULD RESULT IN FLASH FLOODING. .EMERGENCY MANAGEMENT AGENCY AND SPOTTER ACTIVATION... CIVIL DEFENSE AGENCIES AND SPOTTER GROUPS OVER NORTHEAST OKLAHOMA SHOULD BE PREPARED FOR POSSIBLE ACTIVATION THIS MORNING. INFORMATION CONCERNING THE DEVELOPMENT OF FLASH FLOODING MAY BE NEEDED OVER THE WHOLE AREA.
Special weather statement, Jul 1, 6:10 AM CDT, 5 hours 5 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-021100- EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 610 AM CDT THU JUL 1 1999 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 10 AM FOR OSAGE... PAWNEE AND CREEK COUNTIES IN NORTHEAST OKLAHOMA... ...A FLASH FLOOD WATCH IS IN EFFECT FOR THIS MORNING FOR MUCH OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS... ...A FEW SEVERE THUNDERSTORMS ARE EXPECTED OVER NORTHEAST OKLAHOMA THIS MORNING... .SYNOPSIS... EARLY THIS MORNING LOW PRESSURE WAS LOCATED OVER THE TEXAS AND OKLAHOMA PANHANDLES. A STRONG LOW LEVEL JET HAS DEVELOPED OVERNIGHT OVER THE SOUTHERN PLAINS AHEAD OF THIS FEATURE. THIS JET COMBINED WITH APPROACHING RELATIVELY STRONG WINDS IN THE MID LEVELS OF THE ATMOSPHERE WILL PROVIDE AN ENVIRONMENT FAVORABLE FOR SEVERE THUNDERSTORMS OVER NORTHEAST OKLAHOMA THIS MORNING. WIND FIELDS WILL WEAKEN SOMEWHAT THIS AFTERNOON AND TONIGHT AND WARMING MID LEVELS OF THE ATMOSPHERE WILL ACT TO SUPPRESS THE REDEVELOPMENT OF THUNDERSTORMS LATER IN THE DAY AND OVERNIGHT TONIGHT. .DISCUSSION... A COMPLEX OF STRONG TO SEVERE THUNDERSTORMS FORMED OVER SOUTHWEST KANSAS OVERNIGHT. THE LEADING EDGE OF THIS COMPLEX OF STORMS IS EXPECTED TO DEVELOP INTO A SQUALL LINE AND MOVE SOUTHEAST ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THIS MORNING. THE THUNDERSTORMS WILL LIKELY WEAKEN AS THEY CROSS THE AREA. HOWEVER...THEY WILL LIKELY REMAIN STRONG ENOUGH TO PRODUCE SOME DAMAGING WINDS AND MARGINALLY SEVERE HAIL ACROSS NORTHEAST OKLAHOMA . THE STORMS WILL ALSO BRING A PERIOD OF VERY HEAVY RAINFALL WHICH COMBINED WITH SOILS THAT ARE SATURATED FROM LAST MORNINGS RAIN COULD RESULT IN FLASH FLOODING. .EMERGENCY MANAGEMENT AGENCY AND SPOTTER ACTIVATION... CIVIL DEFENSE AGENCIES AND SPOTTER GROUPS OVER NORTHEAST OKLAHOMA SHOULD BE PREPARED FOR POSSIBLE ACTIVATION THIS MORNING. INFORMATION CONCERNING THE DEVELOPMENT OF FLASH FLOODING MAY BE NEEDED OVER THE WHOLE AREA.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 1, 10:05 AM CDT | Severe Thunderstorm Warning | TSA | Benton | 55 min |
| Jul 1, 10:34 AM CDT | Flash Flood Warning | TSA | Benton | 116 min |
Nearby
Flash Flood Warnings in Arkansas, 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.