Alert archive / Arkansas / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 59

February 26, 200026 counties in Arkansas; 4 counties in Oklahoma; Lamar County, Texas

The Storm Prediction Center issued this severe thunderstorm watch at Feb 26, 2000, 12:00 AM CST for 26 counties in Arkansas; 4 counties in Oklahoma; Lamar County, Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued: Feb 26, 2000, 12:00 AM CST (06:00 UTC)
Expired: Feb 26, 2000, 5:00 AM CST
In force: 5 hr
Issued by: the Storm Prediction Center

All 31 counties

Baxter County, AR, Boone County, AR, Conway County, AR, Crawford County, AR, Franklin County, AR, Fulton County, AR, Howard County, AR, Izard County, AR, Johnson County, AR, Little River County, AR, Logan County, AR, Madison County, AR, Marion County, AR, Montgomery County, AR, Newton County, AR, Perry County, AR, Pike County, AR, Polk County, AR, Pope County, AR, Scott County, AR, Searcy County, AR, Sebastian County, AR, Sevier County, AR, Stone County, AR, Van Buren County, AR, Yell County, AR, Choctaw County, OK, LeFlore County, OK, McCurtain County, OK, Pushmataha County, OK, Lamar County, TX

Warnings issued inside it

9 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Feb 26, 12:15 AM CST	Severe Thunderstorm Warning	TSA	LeFlore	45 min
Feb 26, 12:37 AM CST	Severe Thunderstorm Warning	LZK	Scott	63 min
Feb 26, 1:18 AM CST	Severe Thunderstorm Warning	TSA	LeFlore	42 min
Feb 26, 1:25 AM CST	Severe Thunderstorm Warning	LZK	Polk	65 min
Feb 26, 1:28 AM CST	Tornado Warning	TSA	LeFlore	32 min
Feb 26, 1:29 AM CST	Severe Thunderstorm Warning	LZK	Yell	66 min
Feb 26, 2:02 AM CST	Severe Thunderstorm Warning	LZK	Pope	63 min
Feb 26, 2:07 AM CST	Severe Thunderstorm Warning	LZK	Montgomery	48 min
Feb 26, 2:34 AM CST	Severe Thunderstorm Warning	SHV	Little River	26 min

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 6.0 hours before the alert went out and 244 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 234 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 868 m above ground
0-6 km bulk shear: 69 kt
0-1 km storm-relative helicity: 227 m²/s²
0-3 km storm-relative helicity: 227 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.6

Open this sounding in Storm Lab

The text

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

178 
WWUS9 KMKC 260530
SEL9  
MKC WW 260530
ARZ000-OKZ000-261100-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 59
STORM PREDICTION CENTER NORMAN OK
1130 PM CST FRI FEB 25 2000

THE STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

   NORTH AND WEST ARKANSAS                           
   SOUTHEAST OKLAHOMA                           

EFFECTIVE THIS SATURDAY MORNING FROM MIDNIGHT CST UNTIL 500 AM CST.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 60 STATUTE MILES
EAST AND WEST OF A LINE FROM 15 MILES EAST OF PARIS TEXAS TO 45
MILES EAST NORTHEAST OF HARRISON ARKANSAS.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. 
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

OTHER WATCH INFORMATION...  CONTINUE...WW 58...

DISCUSSION...STORMS DEVELOPING NEWD ALONG DRY LINE FROM SERN OK
INTO NWRN AR.  VAD PROFILES INDICATE FAVORABLE SHEAR FOR SEVERE
THUNDERSTORMS FORMING NEAR DRY LINE AND MOVING NEWD.  LOW LEVEL
MOISTURE HAS INCREASE  DURING EVENING FUELING STORM DEVELOPMENT AND
WITH STRONG SHEAR ISOLATED SUPERCELLS LIKELY.  LARGE HAIL SHOULD BE
PRIMARY SEVERE MODE.


AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.  MEAN STORM
MOTION VECTOR 23040.


...HALES

333,0961 363,0932 363,0911 333,0940

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Feb 26, 1:30 AM CST	Severe Thunderstorm Watch	SPC	Bradley, Calhoun, Columbia, Drew, Hempstead, Lafayette and 5 more	6 hr
Feb 26, 2:45 AM CST	Severe Thunderstorm Watch	SPC	Clark, Clay, Cleburne, Conway, Craighead, Dallas and 29 more	4 hr
Feb 25, 10:30 PM CST	Severe Thunderstorm Watch	SPC	Bosque, Bowie, Camp, Cass, Collin, Comanche and 34 more	6 hr

Nearby

Severe Thunderstorm Watches in Arkansas, 2000 Severe Thunderstorm Watches in Oklahoma, 2000 Severe Thunderstorm Watches in Texas, 2000 Every severe thunderstorm watch in 2000

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.