Alert archive / Arkansas / Flash Flood Warnings in 2002

Flash Flood Warning 5, NWS Tulsa, OK

March 18, 2002Sebastian County, Arkansas; LeFlore County, Oklahoma

NWS Tulsa, OK issued this flash flood warning at Mar 18, 2002, 11:54 PM CST for Sebastian County, Arkansas; LeFlore County, Oklahoma. It was in force for 96 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
Mar 18, 2002, 11:54 PM CST (05:54 UTC)
Expired
Mar 19, 2002, 1:30 AM CST
In force
96 min
Issued by
NWS Tulsa, OK
Area
Counties, with a storm outline in the text

Counties Sebastian County, AR, LeFlore County, OK

The radar

The Western Arkansas radar (KSRX), 44 km from the middle of the area, began a volume at 05:55 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 00:00Z, 5.9 hours before the alert went out and 229 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 00:00Z on 2002-03-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2002-03-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 square meters per square second.1939587897117136Sfc1 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
5 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
713 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
-165 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KTSA 190554
FFWTUL
ARC131-OKC079-190730-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TULSA OK
1151 PM CST MON MAR 18 2002

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* FLASH FLOOD WARNING FOR
  LE FLORE COUNTY IN SOUTHEAST OKLAHOMA
  SEBASTIAN COUNTY IN WEST CENTRAL ARKANSAS

* UNTIL 130 AM CST

* AT 1151 PM CST RADAR INDICATED AN AREA OF VERY HEAVY RAIN WITH A   
  FEW EMBEDDED THUNDERSTORMS OVER MOST OF LE FLORE AND SEBASTIAN     
  COUNTIES. THIS ACTIVITY WAS MOVING NORTHEAST AT 35 MPH.

  RADAR AND SURFACE OBSERVATIONS INDICATE THAT BETWEEN 1.5 AND 2.5   
  INCHES OF RAIN HAS FALLEN OVER THE WARNED AREA OVER THE PAST 3     
  HOURS. ANOTHER 1 TO 2 INCHES WILL BE POSSIBLE THROUGH 130 AM CST.

* SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY THE HEAVY RAIN 
  INCLUDE POTEAU...HEAVENER...WISTER...CAMERON...PANAMA...SPIRO...   
  POCOLA...HARTFORD...GREENWOOD AND FORT SMITH.

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.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

LAT...LON 3520 9494 3471 9504 3454 9491 3453 9449
          3490 9442 3515 9415 3542 9413
1 follow-up statement
000 
WGUS74 KTSA 190643
FFSTUL
ARC131-OKC079-190730-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1241 AM CST TUE MAR 19 2002

...FLASH FLOOD WARNING CONTINUES FOR SEBASTIAN AND LE FLORE COUNTIES
   UNTIL 130 AM CST...

AT 1241 AM CST...RADAR CONTINUED TO SHOW AN AREA OF VERY HEAVY RAIN 
OVER MUCH OF LE FLORE AND SEBASTIAN COUNTIES...MOVING NORTHEAST 
AT 35 MPH.

RADAR INDICATES THAT 2 TO 3 INCHES OF RAIN HAS ALREADY FALLEN OVER 
THE WARNED AREA. ANOTHER INCH WILL BE POSSIBLE THROUGH 130 AM CST.

SOME LOCATIONS THAT WILL CONTINUE TO BE AFFECTED BY THE HEAVY RAIN 
INCLUDE POTEAU...HEAVENER...PANAMA...MONROE...BIG CEDAR...FORT 
SMITH...JENNY LIND...GREENWOOD...HUNTINGTON AND HARTFORD.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 18, 8:34 PM CSTFlash Flood WarningTSASebastian3 hr
Mar 18, 8:42 PM CSTFlash Flood WarningTSASebastian3 hr
Mar 18, 10:37 PM CSTFlash Flood WarningTSAFranklin3 hr
Mar 19, 1:31 AM CSTFlash Flood WarningTSAFranklin, Sebastian4 hr
Mar 19, 3:54 AM CSTFlash Flood WarningTSACrawford96 min
Mar 19, 7:17 AM CSTFlash Flood WarningTSACrawford, Franklin, Sebastian4 hr
Mar 19, 11:01 AM CSTFlash Flood WarningTSACrawford, Franklin, Sebastian5 hr
Mar 19, 2:40 PM CSTFlash Flood WarningTSAMadison5 hr
Mar 19, 3:54 PM CSTFlash Flood WarningTSACrawford, Franklin, Sebastian6 hr
Mar 18, 10:02 PM CSTFlash Flood WarningTSAChoctaw118 min

Nearby

Flash Flood Warnings in Arkansas, 2002Flash Flood Warnings in Oklahoma, 2002Every flash flood warning in 2002

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.