Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 200, NWS Tulsa, OK

May 16, 2000Osage County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 16, 2000, 11:22 PM CDT for Osage County, Oklahoma. It was in force for 38 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 16, 2000, 11:22 PM CDT (04:22 UTC)
Expired
May 17, 2000, 12:00 AM CDT
In force
38 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Osage County, OK

The radar

The Tulsa radar (KINX), 90 km from the middle of the area, began a volume at 04:23 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

TimeReportWhereRemark
May 16, 11:30 PM CDTHail 0.88Hominy, 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 nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 4.4 hours before the alert went out and 181 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-pSkew-T log-p diagram, Norman, OK at 00:00Z on 2000-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2069 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Norman, OK at 00:00Z on 2000-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 346 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
2069 J/kg
Mixed-layer CIN
-421 J/kg
Mixed-layer LCL
1070 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
346 m²/s²
0-3 km storm-relative helicity
521 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.

831 
WUUS54 KTSA 170422
SVRTUL
OKC113-170500-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1122 PM CDT TUE MAY 16 2000

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

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

* UNTIL MIDNIGHT CDT

* AT 1122 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 5 MILES WEST OF HOMINY...MOVING EAST AT 30 MPH.

* SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...BARNSDALL...
WYNONA...AVANT AND HOMINY

HAIL TO THE SIZE OF DIMES 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.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at May 16, 9:45 PM CDT, 1 hour 37 minutes earlier.

Area forecast discussion, May 16, 9:45 PM CDT, 1 hour 37 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
945 PM CDT TUE MAY 16 2000

PESKY SHOWERS AND THUNDERSTORMS THAT HAVE BEEN WIDELY SCATTERED
ACROSS THE FORECAST AREA HAVE NOT GONE AWAY WITH SUNSET AS
FORECAST.  THE 00Z ANALYSES SHOWED A SUBTLE DISTURBANCE AND WARM
ADVECTION OCCURRING AT 500MB...WHICH IS LIKELY WHERE MOST OF THE
CONVECTIVE ACTIVITY ACROSS THE REGION IS ORIGINATING.  THE CLUSTER
OF STORMS OVER NORTH CENTRAL OKLAHOMA IS HEADING FOR AREAS JUST
NORTH AND WEST OF TULSA...BUT IT HAS BEEN WEAKENING.

THE ZONES HAVE ALREADY BEEN UPDATED TO INTRODUCE A CHANCE OF SHOWERS
AND STORMS ACROSS MUCH OF NORTHEAST OKLAHOMA WITH THE BEST CHANCE
NORTHWEST OF THE TULSA AREA.  ALSO LEFT IN A SLIGHT CHANCE OVER THE
REMAINDER OF THE AREA...EXCEPT NEAR THE RED RIVER.

THE NORMAN SOUNDING IS WELL CAPPED TO LOW BASED CONVECTION...BUT
KSGF AND KLZK ARE NOT AS CAPPED.  SO MAY SEE ACTIVITY PULSE UP LATE
AS IT GETS EAST OF THE AREA.

OTHERWISE...WINDS HAVE CONTINUED TO GUST IN EASTERN OKLAHOMA...SO
MENTIONED IT IN WESTERN ZONES.  TEMPERATURES LOOKED IN LINE WITH
CURRENT DEWPOINTS WHICH SHOULD BE CLOSE.  MOSTLY CLOUDY SKIES LOOK
GOOD...EXCEPT NEAR THE RED RIVER WHERE PARTLY CLOUDY PREFERRED.

FCSTID = 19

.TUL...
AR...NONE.
OK...NONE.

In the hours before

Local storm report, May 16, 5:45 PM CDT, 5 hours 37 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
545 PM CDT TUE MAY 16 2000

TIME(CDT)  .....CITY LOCATION..... STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0640 AM    SOUTH COFFEYVILLE         OK    .75 INCH HAIL
05/16/00   NOWATA                          DIME SIZE HAIL REPORTED
                                           BY PUBLIC

The office that day

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

IssuedProductOfficeCountiesLasted
May 16, 11:27 PM CDTSevere Thunderstorm WarningTSACreek33 min
May 17, 12:08 AM CDTSevere Thunderstorm WarningTSATulsa37 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2000Every 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.