Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 113, NWS Norman, OK

March 28, 2000Garvin County, Murray County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Mar 28, 2000, 5:28 PM CST for Garvin County, Murray 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: Mar 28, 2000, 5:28 PM CST (23:28 UTC)
Expired: Mar 28, 2000, 6:15 PM CST
In force: 47 min
Issued by: NWS Norman, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Garvin County, OK, Murray County, OK

The radar

The Norman radar (KTLX), 87 km from the middle of the area, began a volume at 23:28 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 watch it was issued in

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

Issued	Product	Office	Lasted
Mar 28, 3:30 PM CST	Tornado Watch	SPC	7 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 11.5 hours before the alert went out and 75 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2350 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 162 m²/s²
0-3 km storm-relative helicity: 156 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 
WUUS54 KOUN 282329
SVROKC
OKC049-099-290015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
528 PM CST TUE MAR 28 2000

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GARVIN COUNTY IN SOUTHERN OKLAHOMA
  MURRAY COUNTY IN SOUTHERN OKLAHOMA

* UNTIL 615 PM CST

* AT 528 PM CST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 11
  MILES SOUTH OF ELMORE CITY...MOVING NORTHEAST AT 30 MPH.

* LOCATIONS IN THE WARNING INCLUDE ELMORE CITY...PAULS VALLEY AND
  WYNNEWOOD

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

LAT...LON 3458 9743 3440 9732 3463 9701 3484 9719
          3477 9744

CJS

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 28, 4:04 PM CST	Severe Thunderstorm Warning	OUN	Jefferson	56 min
Mar 28, 4:55 PM CST	Severe Thunderstorm Warning	OUN	Jefferson, Stephens	50 min
Mar 28, 5:11 PM CST	Severe Thunderstorm Warning	OUN	Carter	49 min
Mar 28, 5:22 PM CST	Severe Thunderstorm Warning	OUN	Beckham, Washita	38 min
Mar 28, 5:40 PM CST	Severe Thunderstorm Warning	OUN	Kiowa	35 min
Mar 28, 5:41 PM CST	Severe Thunderstorm Warning	OUN	Stephens	49 min
Mar 28, 5:58 PM CST	Severe Thunderstorm Warning	OUN	Tillman	62 min
Mar 28, 5:58 PM CST	Severe Thunderstorm Warning	OUN	Washita	47 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; radar from the NEXRAD Level II archive.