Alert archive / Arkansas / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 457, NWS Tulsa, OK

October 5, 1998Crawford County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Oct 5, 1998, 2:13 PM CDT for Crawford County, Arkansas. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 5, 1998, 2:13 PM CDT (19:13 UTC)
Expired
Oct 5, 1998, 2:45 PM CDT
In force
32 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Crawford County, AR

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 7.2 hours before the alert went out and 151 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 1998-10-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 263 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 1998-10-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 323 square meters per square second.193958Sfc1 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
263 J/kg
Mixed-layer CIN
-97 J/kg
Mixed-layer LCL
570 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
323 m²/s²
0-3 km storm-relative helicity
352 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.5

Open this sounding in Storm Lab

The text

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

803 
WUUS54 KTSA 051912 RRA
SVRTUL
ARC033-051945-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
ISSUED BY NATIONAL WEATHER SERVICE LITTLE ROCK AR
213 PM CDT MON OCT 5 1998

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CRAWFORD IN WESTERN ARKANSAS

* UNTIL 245 PM CDT

* AT 212 PM CDT... DOPPLER WEATHER RADAR INDICATED A SEVERE
  THUNDERSTORM 22 MILES NORTHWEST OF OZARK MOVING NORTHEAST AT 30
  MPH.

* THIS STORM IS EXPECTED TO REMAIN MOSTLY IN RURAL AREAS.

THE MAIN THREAT WITH THIS STORM IS DIME SIZE HAIL OR LARGER. THE
HAIL MAY CAUSE SOME VEHICLE OR ROOF DAMAGE. STRONG AND GUSTY WINDS
CAN ALSO BE EXPECTED WITH THE STORM. FOR YOUR PROTECTION...GO
INDOORS UNTIL THE STORM PASSES.

25/206

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Oct 5, 10:10 AM CDT, 4 hours 3 minutes earlier.

Area forecast discussion, Oct 5, 10:10 AM CDT, 4 hours 3 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
1010 AM CDT MON OCT 5 1998

HEAVY RAIN HAS SHIFTED SOUTHEAST AND IS STILL MAKING PROGRESS
EASTWARD. HOWEVER BIG PIECE OF ENERGY STILL TO ROUND BASE OF
UPPER TROF AND MOVE ACROSS SOUTHERN PLAINS THIS AFTERNOON AND
TONIGHT. SURFACE COLD FRONT WAS EXTENDED FROM NEAR MIAMI TO
OKEMAH BUT 850 MB TROF IS STILL NORTHWEST OF THE FORECAST
AREA. SCATTERED SHOWERS WILL CONTINUE TO DEVELOP AND MOVE
NORTHEAST OVER NORTHEAST OKLAHOMA WITH MAIN AREAS OF
THUNDERSTORMS AND HEAVY RAINS SOUTHEAST OF CURRENT POSITION
OF SURFACE COLD FRONT. DUE TO CURRENT RUNOFF AND FLASH FLOOD
WARNINGS IN EFFECT WON'T CANCEL  ANY OF THE FFA AT THIS
TIME...BUT THREAT WILL HAVE SHIFTED INTO SOUTHEAST OKLAHOMA
AND NORTHWEST ARKANSAS THIS AFTERNOON...SO PLAN ON SHAVING
OFF NORTHWEST PART OF WATCH EARLY THIS AFTERNOON.

WILL UPDATE ZONES TO LOWER MAXES BEHIND COLD FRONT WHERE CLOUDS
SCATTERED SHOWERS WILL KEEP TEMPERATURES FROM RISING MUCH.
TEMPERATURES SHOULD BE STEADY OR FALL WITH PRECIP OVER THE
REST OF THE AREA...EXCEPT NEAR RED RIVER WHERE SUNSHINE
COULD LET TEMPS WARM INTO MID 80S. THREAT FOR SEVERE SHOULD
BE LIMITED TO THAT AREA...BUT WILL HAVE TO MONITOR LEADING
EDGE OF STORMS FOR POSSIBLE INTENSIFICATION. UPDATED ZONES
SHOULD BE OUT BY 11AM.

.TUL...
OK...FLASH FLOOD WATCH FOR TODAY FOR ZONES OKZ049...OKZ053>077.

AR...FLASH FLOOD WATCH FOR TODAY FOR ZONES ,ARZ001>002...ARZ010>011...
ARZ019>020...ARZ029.

In the hours before

Special weather statement, Oct 5, 8:58 AM CDT, 5 hours 15 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-060>076-051410-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
858 AM CDT MON OCT 5 1998

SEVERE THUNDERSTORM WATCH NUMBER 866 THAT WAS ISSUED EARLY THIS
MORNING FOR MOST OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS HAS
BEEN CANCELLED.

AT 855 AM WEATHER RADAR SHOWED A LINE OF SHOWERS AND THUNDERSTORMS
CONTINUING TO MOVE ACROSS NORTHWEST ARKANSAS AND EASTERN OKLAHOMA.

FLASH FLOOD WARNINGS REMAIN IN EFFECT ASSOCIATED WITH THE SHOWERS
AND THUNDERSTORMS...HOWEVER THE THREAT OF SEVERE WEATHER HAS
DIMINISHED OVER THE AREA AND THE WATCH HAS BEEN CANCELLED.

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 5, 2:12 AM CDTSevere Thunderstorm WarningTSABenton48 min
Oct 5, 2:56 AM CDTSevere Thunderstorm WarningTSABenton49 min
Oct 5, 3:56 AM CDTSevere Thunderstorm WarningTSABenton49 min
Oct 5, 4:07 AM CDTTornado WarningTSABenton23 min
Oct 5, 4:35 AM CDTFlash Flood WarningTSABenton3 hr
Oct 5, 7:55 AM CDTFlash Flood WarningTSABenton3 hr
Oct 5, 10:53 AM CDTFlash Flood WarningTSABenton, Washington3 hr
Oct 5, 1:49 PM CDTFlash Flood WarningTSABenton, Washington3 hr
Oct 5, 2:24 PM CDTSevere Thunderstorm WarningTSAMadison, Washington66 min
Oct 5, 3:15 PM CDTFlash Flood WarningTSACarroll, Madison3 hr
Oct 5, 3:15 PM CDTFlash Flood WarningTSAFranklin, Sebastian3 hr
Oct 5, 3:24 PM CDTSevere Thunderstorm WarningTSACarroll, Madison51 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 1998Every severe thunderstorm warning in 1998

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.