Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 708, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Nov 6, 1996, 12:30 PM CST for Grady County, Stephens County, Oklahoma. It was in force for 45 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
- Nov 6, 1996, 12:30 PM CST (18:30 UTC)
- Expired
- Nov 6, 1996, 1:15 PM CST
- In force
- 45 min
- Issued by
- NWS Norman, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Grady County, OK, Stephens County, OK
The radar
The Norman radar (KTLX), 87 km from the middle of the area, began a volume at 18:31 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 |
|---|---|---|---|
| Nov 6, 12:35 PM CST | Hail 0.88 | Marlow, OK | |
| Nov 6, 12:45 PM CST | Hail 0.75 | Rush Spgs, 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
Fort Sill, OK (KFSI), launched 12:00Z, 6.5 hours before the alert went out and 51 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.
- Mixed-layer CAPE
- 400 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 543 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 211 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KOKC 061832 RRA
SVROKC
OKC051-137-061915-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
1230 PM CST WED NOV 06 1996
THE NATIONAL WEATHER SERVICE IN OKLAHOMA CITY HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 115 PM CST FOR
PEOPLE IN THE FOLLOWING COUNTIES
IN CENTRAL OKLAHOMA
SOUTHERN GRADY
IN SOUTHWESTERN OKLAHOMA
NORTHERN STEPHENS
INCLUDING THE FOLLOWING LOCATIONS
ACME...AGAWAM...ALEX...BRADLEY...BRAY...MARLOW...MIDDLEBERG
...NINNEKAH...NORGE...RUSH SPRINGS AND TABLER
AT 1230 PM CST DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
OVER MARLOW. GOLFBALL SIZE HAIL WAS REPORTED ON THE NORTH SIDE OF MARLOW
AT 12:28 PM.
THE STORM WAS MOVING NORTHEAST AT 45 MPH
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS 60 MPH OR HIGHER...
DESTRUCTIVE HAIL...DEADLY LIGHTNING AND HEAVY RAIN. MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS.
HEAVYh RAINS FLOOD ROADS QUICKLY SO DONT DRIVE INTO AREAS WHERE
WATER COVERS THE ROAD.
LAT...LON 3463 9769 3454 9806 3505 9797 3516 9768The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 6, 1:29 PM CST | Severe Thunderstorm Warning | OUN | Lincoln, Payne | 31 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 1996Every severe thunderstorm warning in 1996
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.