Alert archive / Arkansas / Flash Flood Warnings in 1999

Flash Flood Warning 72, NWS Tulsa, OK

June 24, 1999Sebastian County, Arkansas

NWS Tulsa, OK issued this flash flood warning at Jun 24, 1999, 2:37 PM CDT for Sebastian County, Arkansas. It was in force for 113 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
Jun 24, 1999, 2:37 PM CDT (19:37 UTC)
Expired
Jun 24, 1999, 4:30 PM CDT
In force
113 min
Issued by
NWS Tulsa, OK
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Sebastian County, AR

The radar

The Western Arkansas radar (KSRX), 4 km from the middle of the area, began a volume at 19:36 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, 7.6 hours before the alert went out and 186 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.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 1999-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 481 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 1999-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
481 J/kg
Mixed-layer CIN
-111 J/kg
Mixed-layer LCL
903 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KTUL 241940
FFWTUL
ARC131-242130-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
237 PM CDT THU JUN 24 1999

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR
  SEBASTIAN COUNTY IN NORTHWEST ARKANSAS

* UNTIL 430 PM CDT

* AT 237 PM CDT RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAIN 
IN THE FORT SMITH AREA.  OTHER STORMS SHOULD MOVE OVER THE AREA 
DURING THE NEXT TWO  HOURS. SEVERAL REPORTS OF STREET AND BUSINESS 
FLOODING HAVE BEEN RECEIVED IN FORT SMITH.

BLOOMER...JENNY LIND...BONANZA...EXCELSIOR...BURNVILLE...LAVACA...
BARLING...GREENWOOD...HACKETT AND FORT SMITH 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.

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 9443 3511 9443 3516 9415 3543 9414

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 24, 1:20 PM CDT, 1 hour 17 minutes earlier.

Area forecast discussion, Jun 24, 1:20 PM CDT, 1 hour 17 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
120 PM CDT THU JUN 24 1999

UPDATED ZONES TO INCLUDE SEVERE THUNDERSTORM WATCH PORTIONS OF
EASTERN OKLAHOMA AND WEST CENTRAL ARKANSAS.

FCSTID = 33

.TUL...
AR...NONE.
OK...FLASH FLOOD WATCH IN EFFECT UNTIL 600 PM PORTIONS OF NORTHEAST
OKLAHOMA.

In the hours before

Special weather statement, Jun 24, 1:10 PM CDT, 1 hour 27 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-251100-

EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
110 PM CDT THU JUN 24 1999

...A SEVERE THUNDERSTORM
Special weather statement, Jun 24, 1:10 PM CDT, 1 hour 27 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-251100-

EASTERN OKLAHOMA/NORTHWEST ARKANSAS HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
110 PM CDT THU JUN 24 1999

...A SEVERE THUNDERSTORM
Local storm report, Jun 24, 2:09 PM CDT, 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
411 PM CDT WED JUN 23 1999

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0630 AM    TULSA                     OK    WIND DAMAGE
06/23/99   TULSA                           *** 1 INJ ***
                                           3-FOOT DIAMETER TREE
                                           BLOWN OVER.  2-FOOT
                                           DIAMETER TREE AND
                                           SEVERAL OTHER LARGE
                                           TREE LIMBS SNAPPED OFF.
                                           LARGE TENT BLOWN
                                           DOWN...CAUSING ONE
                                           MINOR INJURY.  OCCURRED
                                           IN WEST TULSA AT 65TH
                                           W. AVE. AND CHARLES
      \                                     PAGE BLVD.
Local storm report, Jun 24, 2:09 PM CDT, 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
411 PM CDT WED JUN 23 1999

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0630 AM    TULSA                     OK    WIND DAMAGE
06/23/99   TULSA                           *** 1 INJ ***
                                           3-FOOT DIAMETER TREE
                                           BLOWN OVER.  2-FOOT
                                           DIAMETER TREE AND
                                           SEVERAL OTHER LARGE
                                           TREE LIMBS SNAPPED OFF.
                                           LARGE TENT BLOWN
                                           DOWN...CAUSING ONE
                                           MINOR INJURY.  OCCURRED
                                           IN WEST TULSA AT 65TH
                                           W. AVE. AND CHARLES
      \                                     PAGE BLVD.
Local storm report, Jun 24, 2:33 PM CDT, 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
233 PM CDT THU JUN 24 1999

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0231 PM    FT SMITH                  AR    .75 INCH HAIL
06/24/99   SEBASTIAN
Local storm report, Jun 24, 2:33 PM CDT, 4 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
233 PM CDT THU JUN 24 1999

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0231 PM    FT SMITH                  AR    .75 INCH HAIL
06/24/99   SEBASTIAN

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 24, 3:24 PM CDTSevere Thunderstorm WarningTSASebastian51 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.