Alert archive / Oklahoma / Tornado Warnings in 2003

Tornado Warning 70, NWS Norman, OK

May 14, 2003Stephens County, Oklahoma

NWS Norman, OK issued this tornado warning at May 14, 2003, 3:19 AM CDT for Stephens County, Oklahoma. It was in force for 26 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
May 14, 2003, 3:19 AM CDT (08:19 UTC)
Expired
May 14, 2003, 3:45 AM CDT
In force
26 min
Issued by
NWS Norman, OK
Area
Counties, with a storm outline in the text

County Stephens County, OK

The radar

The Norman radar (KTLX), 106 km from the middle of the area, began a volume at 08:18 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 00:00Z, 8.3 hours before the alert went out and 90 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-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2003-05-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3007 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2003-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 192 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
3007 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
995 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
192 m²/s²
0-3 km storm-relative helicity
283 m²/s²
Significant tornado parameter
4.6
Supercell composite
17.9

Open this sounding in Storm Lab

The text

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

106 
WFUS54 KOUN 140819
TOROKC
OKC137-140845-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORMAN OK
320 AM CDT WED MAY 14 2003

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEAST STEPHENS COUNTY IN SOUTHERN OKLAHOMA

* UNTIL 345 AM CDT

* AT 320 AM CDT...DOPPLER RADAR DETECTED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO OVER VELMA...MOVING SOUTHEAST AT 35
  MPH.

* LOCATIONS IN THE WARNING INCLUDE LOCO AND VELMA

TAKE COVER NOW. LEAVE MOBILE HOMES AND VEHICLES. IF POSSIBLE...MOVE
TO A BASEMENT OR STORM SHELTER. OTHERWISE MOVE TO AN INTERIOR ROOM OR
HALLWAY ON THE LOWEST FLOOR. STAY AWAY FROM WINDOWS AND OUTSIDE
WALLS.

LAT...LON 3455 9777 3432 9782 3430 9757 3451 9756

$$

30

The office that day

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

IssuedProductOfficeCountiesLasted
May 13, 10:13 PM CDTSevere Thunderstorm WarningOUNKiowa47 min
May 13, 10:37 PM CDTSevere Thunderstorm WarningOUNWashita38 min
May 13, 11:06 PM CDTSevere Thunderstorm WarningOUNCaddo39 min
May 14, 12:07 AM CDTSevere Thunderstorm WarningOUNCaddo38 min
May 14, 12:51 AM CDTSevere Thunderstorm WarningOUNCaddo54 min
May 14, 1:01 AM CDTSevere Thunderstorm WarningOUNCuster44 min
May 14, 1:46 AM CDTSevere Thunderstorm WarningOUNBlaine, Caddo, Custer59 min
May 14, 1:48 AM CDTSevere Thunderstorm WarningOUNComanche, Grady42 min
May 14, 1:56 AM CDTSevere Thunderstorm WarningOUNCanadian64 min
May 14, 2:27 AM CDTSevere Thunderstorm WarningOUNStephens48 min
May 14, 2:30 AM CDTSevere Thunderstorm WarningOUNGrady45 min
May 14, 2:48 AM CDTSevere Thunderstorm WarningOUNCaddo42 min
May 14, 2:49 AM CDTSevere Thunderstorm WarningOUNCarter41 min
May 14, 3:01 AM CDTSevere Thunderstorm WarningOUNBlaine44 min
May 14, 3:13 AM CDTSevere Thunderstorm WarningOUNGarvin, Grady, McClain, Stephens47 min
May 14, 3:19 AM CDTSevere Thunderstorm WarningOUNDewey56 min
May 14, 3:29 AM CDTTornado WarningOUNCarter31 min
May 14, 3:59 AM CDTSevere Thunderstorm WarningOUNCarter, Love46 min
May 14, 4:01 AM CDTSevere Thunderstorm WarningOUNGarvin44 min
May 14, 4:14 AM CDTSevere Thunderstorm WarningOUNMurray46 min
May 14, 4:15 AM CDTSevere Thunderstorm WarningOUNHarper45 min
May 14, 4:17 AM CDTSevere Thunderstorm WarningOUNBlaine, Dewey43 min
May 14, 4:21 AM CDTSevere Thunderstorm WarningOUNBryan, Marshall39 min
May 14, 4:43 AM CDTSevere Thunderstorm WarningOUNEllis, Woodward47 min
May 14, 4:46 AM CDTSevere Thunderstorm WarningOUNCarter, Garvin, Johnston, Murray44 min
May 14, 4:57 AM CDTSevere Thunderstorm WarningOUNBlaine, Canadian48 min
May 14, 5:02 AM CDTSevere Thunderstorm WarningOUNMajor, Woods43 min
May 14, 5:27 AM CDTSevere Thunderstorm WarningOUNBryan, Johnston, Marshall63 min
May 14, 5:28 AM CDTSevere Thunderstorm WarningOUNDewey, Woodward47 min
May 14, 5:39 AM CDTTornado WarningOUNMarshall21 min
May 14, 5:45 AM CDTSevere Thunderstorm WarningOUNBlaine, Major45 min
May 14, 5:59 AM CDTSevere Thunderstorm WarningOUNMarshall31 min
May 14, 6:11 AM CDTSevere Thunderstorm WarningOUNCuster, Dewey49 min
May 14, 6:18 AM CDTSevere Thunderstorm WarningOUNGarvin27 min
May 14, 6:18 AM CDTSevere Thunderstorm WarningOUNKingfisher42 min
May 14, 6:30 AM CDTSevere Thunderstorm WarningOUNBryan15 min
May 14, 6:48 AM CDTSevere Thunderstorm WarningOUNBlaine27 min
May 14, 6:51 AM CDTSevere Thunderstorm WarningOUNBryan24 min
May 14, 7:12 AM CDTSevere Thunderstorm WarningOUNBlaine, Caddo, Canadian33 min
May 14, 8:35 AM CDTSevere Thunderstorm WarningOUNCleveland40 min
May 14, 11:32 AM CDTSevere Thunderstorm WarningOUNHughes, Pontotoc28 min
May 14, 11:49 AM CDTSevere Thunderstorm WarningOUNSeminole26 min
May 14, 11:59 AM CDTSevere Thunderstorm WarningOUNHughes31 min

Nearby

Tornado Warnings in Oklahoma, 2003Every tornado warning in 2003Tornadoes in 2003

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.