Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 39, NWS Tulsa, OK

April 15, 2003Osage County, Pawnee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 15, 2003, 11:59 PM CDT for Osage County, Pawnee County, Oklahoma. It was in force for 61 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: Apr 15, 2003, 11:59 PM CDT (04:59 UTC)
Expired: Apr 16, 2003, 1:00 AM CDT
In force: 61 min
Issued by: NWS Tulsa, OK
Area: Counties, with a storm outline in the text

Counties Osage County, OK, Pawnee County, OK

The radar

The Tulsa radar (KINX), 90 km from the middle of the area, began a volume at 05:01 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
Apr 15, 11:20 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 5.0 hours before the alert went out and 169 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: 15 J/kg
Mixed-layer CIN: -337 J/kg
Mixed-layer LCL: 1137 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 380 m²/s²
0-3 km storm-relative helicity: 627 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 160459
SVRTUL
OKC113-117-160600-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1159 PM CDT TUE APR 15 2003

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  OSAGE COUNTY IN NORTHEAST OKLAHOMA
  PAWNEE COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 100 AM CDT

* AT 1159 PM CDT...DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS ALONG
  A LINE EXTENDING FROM RALSTON TO 3 MILES SOUTHWEST OF MARAMEC...
  MOVING NORTHEAST AT 45 MPH.

* SOME LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...PAWHUSKA...
  OSAGE...HOMINY...AVANT...WYNONA...FAIRFAX...BARNSDALL...OKESA...
  HALLETT...MARAMEC...BLACKBURN...SKEDEE...CLEVELAND AND RALSTON.

HAIL TO THE SIZE OF PENNIES AND WIND GUSTS TO 65 MPH CAN BE EXPECTED 
IN THE WARNED AREA. STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE 
STORM HAS PASSED.

LAT...LON 3658 9676 3612 9677 3647 9601 3693 9600

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 16, 12:15 AM CDT	Severe Thunderstorm Warning	TSA	Creek	45 min
Apr 16, 12:48 AM CDT	Severe Thunderstorm Warning	TSA	Tulsa	57 min
Apr 16, 12:56 AM CDT	Severe Thunderstorm Warning	TSA	Washington	64 min
Apr 16, 12:58 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage	32 min
Apr 16, 1:16 AM CDT	Severe Thunderstorm Warning	TSA	Okfuskee	44 min
Apr 16, 1:27 AM CDT	Severe Thunderstorm Warning	TSA	Nowata, Rogers	48 min
Apr 16, 1:46 AM CDT	Severe Thunderstorm Warning	TSA	Okmulgee, Tulsa	44 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.