Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 21, NWS Norman, OK

February 24, 2000Roger Mills County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Feb 24, 2000, 8:13 PM CST for Roger Mills County, Oklahoma. It was in force for 47 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: Feb 24, 2000, 8:13 PM CST (02:13 UTC)
Expired: Feb 24, 2000, 9:00 PM CST
In force: 47 min
Issued by: NWS Norman, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Roger Mills County, OK

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Feb 24, 4:30 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 2.2 hours before the alert went out and 177 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: 127 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 2880 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 64 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KOUN 250214
SVROKC
OKC129-250300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
813 PM CST THU FEB 24 2000

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ROGER MILLS COUNTY IN WESTERN OKLAHOMA

* UNTIL 900 PM CST

* AT 813 PM CST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 17
  MILES SOUTHWEST OF REYDON...MOVING NORTHEAST AT 35 MPH.

* LOCATIONS IN THE WARNING INCLUDE CHEYENNE...CRAWFORD...REYDON...
  ROLL AND STRONG CITY

HAIL UP TO THE SIZE OF GOLFBALLS AND WIND GUSTS TO AT LEAST 60 MPH ARE
LIKELY.

LAT...LON 3579 10000 3542 9999 3544 9972 3559 9944
          3587 9973

$$
WR

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 24, 8:06 PM CST	Tornado Warning	OUN	Ellis	39 min
Feb 24, 8:38 PM CST	Tornado Warning	OUN	Ellis, Harper	37 min
Feb 24, 9:10 PM CST	Severe Thunderstorm Warning	OUN	Ellis	35 min
Feb 24, 9:11 PM CST	Tornado Warning	OUN	Harper	34 min
Feb 24, 9:35 PM CST	Severe Thunderstorm Warning	OUN	Ellis, Harper	40 min
Feb 24, 9:35 PM CST	Severe Thunderstorm Warning	OUN	Woods	40 min
Feb 24, 9:49 PM CST	Severe Thunderstorm Warning	OUN	Roger Mills	41 min
Feb 24, 10:04 PM CST	Severe Thunderstorm Warning	OUN	Harmon	41 min
Feb 24, 10:25 PM CST	Severe Thunderstorm Warning	OUN	Beckham, Greer	50 min
Feb 24, 10:25 PM CST	Severe Thunderstorm Warning	OUN	Jackson	50 min
Feb 24, 11:00 PM CST	Severe Thunderstorm Warning	OUN	Kiowa, Washita	45 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2000 Every severe thunderstorm warning 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.