Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 21, NWS Norman, OK

March 25, 2002Marshall County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Mar 25, 2002, 7:36 AM CST for Marshall County, Oklahoma. It was in force for 24 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 25, 2002, 7:36 AM CST (13:36 UTC)
Expired: Mar 25, 2002, 8:00 AM CST
In force: 24 min
Issued by: NWS Norman, OK
Area: Counties, with a storm outline in the text

County Marshall County, OK

The radar

The Norman radar (KTLX), 142 km from the middle of the area, began a volume at 13:37 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

Norman, OK (KOUN), launched 12:00Z, 1.6 hours before the alert went out and 134 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: 605 m above ground
0-6 km bulk shear: 84 kt
0-1 km storm-relative helicity: 108 m²/s²
0-3 km storm-relative helicity: 297 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 251336
SVROKC
OKC095-251400-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
736 AM CST MON MAR 25 2002

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN MARSHALL COUNTY IN SOUTHEAST OKLAHOMA

* UNTIL 800 AM CST

* AT 736 AM CST...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM 10
  MILES SOUTHWEST OF MANNSVILLE...MOVING EAST AT 45 MPH.

* LOCATIONS IN THE WARNING INCLUDE LITTLE CITY...MADILL...
  MANNSVILLE...OAKLAND AND RUSSETT

HAIL UP TO THE SIZE OF NICKELS IS LIKELY WITH THIS SEVERE 
THUNDERSTORM.


LAT...LON 3419 9697 3404 9697 3401 9695 3401 9660
          3419 9663

SIX

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 24, 7:49 PM CST	Severe Thunderstorm Warning	OUN	Lincoln, Pottawatomie, Seminole	26 min
Mar 24, 8:04 PM CST	Severe Thunderstorm Warning	OUN	Oklahoma	41 min
Mar 24, 8:13 PM CST	Severe Thunderstorm Warning	OUN	Seminole	17 min
Mar 24, 8:18 PM CST	Severe Thunderstorm Warning	OUN	Lincoln	27 min
Mar 24, 8:36 PM CST	Severe Thunderstorm Warning	OUN	Pottawatomie, Seminole	24 min
Mar 24, 8:44 PM CST	Severe Thunderstorm Warning	OUN	Lincoln	16 min
Mar 24, 8:59 PM CST	Severe Thunderstorm Warning	OUN	Lincoln	16 min
Mar 24, 9:07 PM CST	Severe Thunderstorm Warning	OUN	Hughes	23 min
Mar 25, 12:21 AM CST	Severe Thunderstorm Warning	OUN	Pottawatomie, Seminole	39 min
Mar 25, 6:47 AM CST	Severe Thunderstorm Warning	OUN	Jefferson	28 min
Mar 25, 7:04 AM CST	Severe Thunderstorm Warning	OUN	Love	26 min
Mar 25, 7:49 AM CST	Severe Thunderstorm Warning	OUN	Johnston	31 min
Mar 25, 8:09 AM CST	Severe Thunderstorm Warning	OUN	Carter, Love	51 min
Mar 25, 8:28 AM CST	Severe Thunderstorm Warning	OUN	Pontotoc	32 min
Mar 25, 9:01 AM CST	Severe Thunderstorm Warning	OUN	Carter, Johnston	44 min
Mar 25, 9:43 AM CST	Severe Thunderstorm Warning	OUN	Coal, Johnston	47 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2002 Every severe thunderstorm 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.