Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 159, NWS Tulsa, OK

May 8, 2000Osage County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 8, 2000, 8:25 PM CDT for Osage County, Oklahoma. It was in force for 65 min. 2 reports 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: May 8, 2000, 8:25 PM CDT (01:25 UTC)
Expired: May 8, 2000, 9:30 PM CDT
In force: 65 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), 97 km from the middle of the area, began a volume at 01:28 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
May 8, 8:25 PM CDT	Hail 0.88	Pearsonia, OK
May 8, 9:25 PM CDT	Hail 1	Ralston, 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
May 8, 6:30 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 1.4 hours before the alert went out and 202 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: 2944 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 1417 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 70 m²/s²
0-3 km storm-relative helicity: 209 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 12.8

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KTSA 090127
SVRTUL
OKC113-090230-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
825 PM CDT MON MAY 8 2000

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

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

* UNTIL 930 PM CDT

* AT 825 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM 6 MILES NORTHEAST
  OF PEARSONIA TO 6 MILES NORTHEAST OF BURBANK TO 13 MILES SOUTHWEST
  OF BURBANK...MOVING NORTHEAST AT 40 MPH.

* SOME LOCATIONS NEAR THE PATH OF THESE STORMS 
INCLUDE...HULAH...BIGHEART...FORAKER...GRAINOLA...PEARSONIA...BURBANK
. . .FAIRFAX AND PAWHUSKA

HAIL TO THE SIZE OF QUARTERS AND WIND GUSTS TO 60 MPH CAN BE
EXPECTED IN THE WARNED AREA.

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

LAT...LON 3665 9629 3647 9679 3653 9711 3696 9628
          3716 9590 3725 9549

The office that day

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

Issued	Product	Office	Counties	Lasted
May 8, 7:31 PM CDT	Severe Thunderstorm Warning	TSA	Osage	59 min
May 8, 8:40 PM CDT	Severe Thunderstorm Warning	TSA	Nowata, Osage, Washington	65 min
May 8, 8:42 PM CDT	Severe Thunderstorm Warning	TSA	Pawnee	48 min
May 8, 8:50 PM CDT	Tornado Warning	TSA	Nowata, Washington	25 min
May 8, 8:50 PM CDT	Tornado Warning	TSA	Osage	25 min
May 8, 9:29 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Nowata	61 min
May 8, 9:34 PM CDT	Severe Thunderstorm Warning	TSA	Pawnee	56 min
May 8, 9:51 PM CDT	Severe Thunderstorm Warning	TSA	Osage	54 min
May 8, 10:46 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	59 min
May 8, 11:13 PM CDT	Severe Thunderstorm Warning	TSA	Washington	47 min
May 8, 11:29 PM CDT	Severe Thunderstorm Warning	TSA	Nowata	61 min
May 8, 11:45 PM CDT	Severe Thunderstorm Warning	TSA	Osage	60 min
May 8, 11:56 PM CDT	Severe Thunderstorm Warning	TSA	Washington	49 min
May 8, 11:58 PM CDT	Severe Thunderstorm Warning	TSA	Craig	62 min
May 9, 1:30 AM CDT	Severe Thunderstorm Warning	TSA	Nowata	45 min
May 9, 3:02 AM CDT	Severe Thunderstorm Warning	TSA	Delaware	43 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.