Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 13, NWS Norman, OK

March 24, 2002Lincoln County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Mar 24, 2002, 8:18 PM CST for Lincoln County, Oklahoma. It was in force for 27 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Mar 24, 2002, 8:18 PM CST (02:18 UTC)
Expired: Mar 24, 2002, 8:45 PM CST
In force: 27 min
Issued by: NWS Norman, OK
Area: Counties, with a storm outline in the text

County Lincoln County, OK

The radar

The Norman radar (KTLX), 48 km from the middle of the area, began a volume at 02:20 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.

What was reported inside it

Time	Report	Where	Remark
Mar 24, 8:35 PM CST	Hail 0.75	Sparks, OK

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 2.3 hours before the alert went out and 65 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: 839 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 1665 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 136 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 2.1

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KOUN 250218
SVROKC
OKC081-250245-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
818 PM CST SUN MAR 24 2002

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LINCOLN COUNTY IN CENTRAL OKLAHOMA

* UNTIL 845 PM CST

* AT 818 PM CST...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM 7
  MILES SOUTH OF WARWICK...MOVING EAST AT 35 MPH.

* LOCATIONS IN THE WARNING INCLUDE CHANDLER...DAVENPORT...KENDRICK...
  SPARKS...STROUD...WARWICK AND WELLSTON

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

LAT...LON 3566 9712 3549 9706 3552 9661 3587 9662

CMS

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, 8:36 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, 7:36 AM CST	Severe Thunderstorm Warning	OUN	Marshall	24 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.