Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 111, NWS Tulsa, OK

May 7, 2002Craig County, Ottawa County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 7, 2002, 5:46 PM CDT for Craig County, Ottawa County, Oklahoma. It was in force for 59 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 7, 2002, 5:46 PM CDT (22:46 UTC)
Expired: May 7, 2002, 6:45 PM CDT
In force: 59 min
Issued by: NWS Tulsa, OK
Area: Counties, with a storm outline in the text

Counties Craig County, OK, Ottawa County, OK

The radar

The Tulsa radar (KINX), 97 km from the middle of the area, began a volume at 22:48 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 7, 3:00 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 10.8 hours before the alert went out and 116 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: 419 J/kg
Mixed-layer CIN: -174 J/kg
Mixed-layer LCL: 732 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: 309 m²/s²
0-3 km storm-relative helicity: 305 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.6

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KTSA 072246
SVRTUL
OKC035-115-072345-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
546 PM CDT TUE MAY 7 2002

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN CRAIG COUNTY IN NORTHEAST OKLAHOMA
  NORTHERN OTTAWA COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 645 PM CDT

* AT 546 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 9
  MILES NORTHWEST OF WELCH...MOVING EAST AT 40 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...MIAMI...
  COMMERCE...QUAPAW...PICHER AND WELCH.

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.

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.

LAT...LON 3702 9544 3687 9542 3687 9462 3703 9459

The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 2:50 PM CDT	Severe Thunderstorm Warning	TSA	Osage	25 min
May 7, 3:10 PM CDT	Severe Thunderstorm Warning	TSA	Osage	50 min
May 7, 3:52 PM CDT	Severe Thunderstorm Warning	TSA	Osage	53 min
May 7, 4:03 PM CDT	Severe Thunderstorm Warning	TSA	Washington	42 min
May 7, 4:11 PM CDT	Severe Thunderstorm Warning	TSA	Nowata	64 min
May 7, 4:41 PM CDT	Severe Thunderstorm Warning	TSA	Washington	34 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.