Alert archive / Oklahoma / Tornado Warnings in 2000

Tornado Warning 13, NWS Norman, OK

March 15, 2000Grant County, Oklahoma

NWS Norman, OK issued this tornado warning at Mar 15, 2000, 5:12 PM CST for Grant County, Oklahoma. It was in force for 33 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
Mar 15, 2000, 5:12 PM CST (23:12 UTC)
Expired
Mar 15, 2000, 5:45 PM CST
In force
33 min
Issued by
NWS Norman, OK
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Grant County, OK

The radar

The Vance AFB radar (KVNX), 21 km from the middle of the area, began a volume at 23:12 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
Mar 15, 5:20 PM CSTHail 1.75Wakita, OK
Mar 15, 5:43 PM CSTTornado F0Wakita, OKThis tornado formed about 2.5 miles southwest of Wakita and was described as brief and rope-like. No damage was observed or reported.

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.

IssuedProductOfficeLasted
Mar 15, 3:00 PM CSTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Lamont, OK (KLMN), launched 12:00Z, 11.2 hours before the alert went out and 52 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, Lamont, OK at 12:00Z on 2000-03-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lamont, OK at 12:00Z on 2000-03-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 112 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
525 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
112 m²/s²
0-3 km storm-relative helicity
146 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 
WFUS54 KOUN 152315
TOROKC
OKC053-152345-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NORMAN OK
512 PM CST WED MAR 15 2000

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN GRANT COUNTY IN NORTHERN OKLAHOMA

* UNTIL 545 PM CST

* AT 512 PM CST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO. THE MOST DANGEROUS PORTION OF THE
  STORM WAS LOCATED 7 MILES SOUTHWEST OF WAKITA...MOVING EAST AT 
  20 MPH.  THIS STORM PRODUCED A BRIEF TORNADO NORTH OF THE GREAT
  SALT PLAINS LAKE AT 452 PM.

* LOCATIONS IN THE WARNING INCLUDE WAKITA

ANY DEVELOPING TORNADOES ARE LIKELY OBSCURED BY RAIN AND MAY NOT BE VISIBLE.
TAKE COVER NOW. ABANDON MOBILE HOMES AND VEHICLES. MOVE TO AN INTERIOR
ROOM OR HALLWAY ON THE LOWEST FLOOR. STAY AWAY FROM WINDOWS.

LAT...LON 3693 9810 3677 9809 3679 9776 3698 9777

ANDRA

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 15, 3:08 PM CSTSevere Thunderstorm WarningOUNWoods37 min
Mar 15, 3:24 PM CSTSevere Thunderstorm WarningOUNAlfalfa36 min
Mar 15, 3:55 PM CSTSevere Thunderstorm WarningOUNAlfalfa50 min
Mar 15, 4:18 PM CSTSevere Thunderstorm WarningOUNMajor42 min
Mar 15, 4:33 PM CSTSevere Thunderstorm WarningOUNAlfalfa, Grant42 min
Mar 15, 4:33 PM CSTSevere Thunderstorm WarningOUNDewey42 min
Mar 15, 4:45 PM CSTSevere Thunderstorm WarningOUNRoger Mills30 min
Mar 15, 4:49 PM CSTTornado WarningOUNAlfalfa, Grant26 min
Mar 15, 5:03 PM CSTSevere Thunderstorm WarningOUNMajor42 min
Mar 15, 5:09 PM CSTSevere Thunderstorm WarningOUNDewey51 min
Mar 15, 5:13 PM CSTSevere Thunderstorm WarningOUNAlfalfa47 min
Mar 15, 5:21 PM CSTSevere Thunderstorm WarningOUNRoger Mills24 min
Mar 15, 5:48 PM CSTTornado WarningOUNGrant42 min
Mar 15, 5:56 PM CSTSevere Thunderstorm WarningOUNCuster, Dewey, Roger Mills49 min
Mar 15, 5:58 PM CSTTornado WarningOUNAlfalfa47 min

Nearby

Tornado Warnings in Oklahoma, 2000Every tornado warning in 2000Tornadoes 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.