Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 72, NWS Tulsa, OK

May 1, 2003Delaware County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 1, 2003, 4:45 PM CDT for Delaware County, Oklahoma. It was in force for 45 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 1, 2003, 4:45 PM CDT (21:45 UTC)
Expired: May 1, 2003, 5:30 PM CDT
In force: 45 min
Issued by: NWS Tulsa, OK
Area: Counties, with a storm outline in the text

County Delaware County, OK

The radar

The Tulsa radar (KINX), 66 km from the middle of the area, began a volume at 21:46 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
May 1, 3:45 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 9.8 hours before the alert went out and 113 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: 816 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: -340 m²/s²
0-3 km storm-relative helicity: -135 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 KTSA 012145
SVRTUL
OKC041-012230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
444 PM CDT THU MAY 1 2003

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  DELAWARE COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 530 PM CDT

* AT 444 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 8
  MILES SOUTH OF CHLOETA...MOVING EAST AT 10 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...JAY...LEACH...
  TWIN OAKS...KANSAS...COLCORD...CHLOETA AND WEST SILOAM SPRINGS.

HAIL TO THE SIZE OF NICKELS AND WIND GUSTS TO 60 MPH CAN BE EXPECTED
IN THE WARNED AREA. STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE
STORM HAS PASSED.

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. BE ALERT FOR RAPIDLY
CHANGING WEATHER CONDITIONS AS STORMS APPROACH.

LAT...LON 3642 9502 3620 9502 3616 9457 3644 9461

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 11:41 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Washington	64 min
May 1, 12:46 AM CDT	Severe Thunderstorm Warning	TSA	Osage	59 min
May 1, 4:21 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee	54 min
May 1, 4:23 PM CDT	Severe Thunderstorm Warning	TSA	Mayes	37 min
May 1, 4:53 PM CDT	Severe Thunderstorm Warning	TSA	Wagoner	37 min
May 1, 5:07 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee	53 min
May 1, 5:25 PM CDT	Severe Thunderstorm Warning	TSA	Delaware	50 min
May 1, 5:30 PM CDT	Severe Thunderstorm Warning	TSA	Wagoner	45 min
May 1, 5:31 PM CDT	Severe Thunderstorm Warning	TSA	Pushmataha	44 min
May 1, 5:55 PM CDT	Tornado Warning	TSA	Cherokee, Muskogee, Wagoner	50 min
May 1, 5:57 PM CDT	Flash Flood Warning	TSA	Cherokee	3 hr
May 1, 6:01 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	59 min
May 1, 6:12 PM CDT	Tornado Warning	TSA	Pushmataha	48 min
May 1, 6:29 PM CDT	Tornado Warning	TSA	Sequoyah	46 min
May 1, 6:43 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee	17 min
May 1, 6:56 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	64 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2003 Every severe thunderstorm warning 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.