Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 110, NWS Tulsa, OK

April 23, 2000Osage County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 23, 2000, 4:26 PM CDT for Osage County, Oklahoma. It was in force for 64 min. 1 report came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: Apr 23, 2000, 4:26 PM CDT (21:26 UTC)
Expired: Apr 23, 2000, 5:30 PM CDT
In force: 64 min
Issued by: NWS Tulsa, OK
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Osage County, OK

The radar

The Tulsa radar (KINX), 80 km from the middle of the area, began a volume at 21:28 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
Apr 23, 4:35 PM CDT	Hail 0.75	Pawhuska, 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 23, 1:45 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 9.4 hours before the alert went out and 189 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: 76 J/kg
Mixed-layer CIN: -265 J/kg
Mixed-layer LCL: 1004 m above ground
0-6 km bulk shear: 63 kt
0-1 km storm-relative helicity: 340 m²/s²
0-3 km storm-relative helicity: 352 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

092 
WUUS54 KTSA 232128
SVRTUL
OKC113-232230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
426 PM CDT SUN APR 23 2000

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

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

* UNTIL 530 PM CDT

* AT 426 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 9 MILES EAST OF
  OKESA TO PAWHUSKA TO 10 MILES WEST OF PAWHUSKA...MOVING SOUTH AT 15
  MPH.

* SOME LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...OKESA...
BARNSDALL...WYNONA...AVANT AND PAWHUSKA

HAIL TO THE SIZE OF NICKELS AND WIND GUSTS TO 50 MPH CAN BE EXPECTED 
IN THE WARNED AREA. REMEMBER A SEVERE THUNDERSTORM WATCH 
CONTINUES UNTIL 7 PM. 

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.

CALL 1-800-722-2778 TO REPORT SEVERE WEATHER TO THE NATIONAL WEATHER
SERVICE.

LAT...LON 3686 9598 3675 9633 3666 9652 3643 9664
          3644 9622 3648 9603

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 23, 1:13 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Tulsa	47 min
Apr 23, 1:32 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	43 min
Apr 23, 1:56 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee	49 min
Apr 23, 2:00 PM CDT	Severe Thunderstorm Warning	TSA	Tulsa	45 min
Apr 23, 2:10 PM CDT	Tornado Warning	TSA	Latimer, Pittsburg	35 min
Apr 23, 2:13 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, Pushmataha	47 min
Apr 23, 2:15 PM CDT	Severe Thunderstorm Warning	TSA	Muskogee	45 min
Apr 23, 2:22 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh	38 min
Apr 23, 2:23 PM CDT	Tornado Warning	TSA	Pushmataha	37 min
Apr 23, 2:38 PM CDT	Tornado Warning	TSA	Latimer	52 min
Apr 23, 2:40 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	50 min
Apr 23, 2:44 PM CDT	Severe Thunderstorm Warning	TSA	Pawnee	61 min
Apr 23, 2:57 PM CDT	Tornado Warning	TSA	Pushmataha	48 min
Apr 23, 3:04 PM CDT	Tornado Warning	TSA	LeFlore	56 min
Apr 23, 3:28 PM CDT	Tornado Warning	TSA	Latimer	32 min
Apr 23, 3:29 PM CDT	Severe Thunderstorm Warning	TSA	Osage	61 min
Apr 23, 3:42 PM CDT	Tornado Warning	TSA	Pushmataha	48 min
Apr 23, 3:55 PM CDT	Severe Thunderstorm Warning	TSA	Muskogee	50 min
Apr 23, 4:02 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Washington	58 min
Apr 23, 4:18 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh	42 min
Apr 23, 4:18 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Sequoyah	57 min
Apr 23, 4:40 PM CDT	Severe Thunderstorm Warning	TSA	Craig	50 min
Apr 23, 4:42 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okmulgee	48 min
Apr 23, 4:45 PM CDT	Severe Thunderstorm Warning	TSA	Okfuskee	45 min
Apr 23, 4:50 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Rogers, Tulsa, Washington	40 min
Apr 23, 4:57 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh	63 min
Apr 23, 5:25 PM CDT	Severe Thunderstorm Warning	TSA	Rogers, Tulsa	50 min
Apr 23, 5:26 PM CDT	Severe Thunderstorm Warning	TSA	Okfuskee, Okmulgee	49 min
Apr 23, 5:33 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	57 min
Apr 23, 5:36 PM CDT	Severe Thunderstorm Warning	TSA	Creek	39 min
Apr 23, 6:02 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh	58 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2000 Every severe thunderstorm warning in 2000

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.