Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 182, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Apr 27, 1996, 11:24 PM CDT for Grant County, Kay County, Oklahoma. It was in force for 51 min. 4 reports 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
- Apr 27, 1996, 11:24 PM CDT (04:24 UTC)
- Expired
- Apr 28, 1996, 12:15 AM CDT
- In force
- 51 min
- Issued by
- NWS Norman, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Grant County, OK, Kay County, OK
The radar
The Vance AFB radar (KVNX), 59 km from the middle of the area, began a volume at 04:27 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 27, 11:25 PM CDT | Hail 1 | Wakita, OK | |
| Apr 27, 11:30 PM CDT | Hail 1.75 | Newkirk, OK | |
| Apr 28, 12:10 AM CDT | Hail 1.75 | Braman, OK | |
| Apr 28, 12:25 AM CDT | Hail 4.5 | Peckham, 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 177 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
- 1118 J/kg
- Mixed-layer CIN
- -65 J/kg
- Mixed-layer LCL
- 1297 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 204 m²/s²
- 0-3 km storm-relative helicity
- 405 m²/s²
- Significant tornado parameter
- 1.4
- Supercell composite
- 7.9
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 27, 9:24 PM CDT, 2 hours earlier.
Area forecast discussion, Apr 27, 9:24 PM CDT, 2 hours before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE OKLAHOMA CITY OK 900 PM CDT SAT APR 27 1996 BEST CHCS FOR TSTMS TONIGHT WILL BE IN VCNTY OF SLOWLY SWD MOVING FRONT ALG THE KS BRDR. STG H8 JET PROGGED FOR TONIGHT WILL INTERACT WITH NRLY E/W FNTL BNDRY PROVIDING STG LIFT. ACTIVITY HAS ALRDY DVLPD IN SRN KS IN THE VCNTY OF THE FNT. CAP WILL RMN STG S OF THE BNDRY AND DO NOT EXPECT MUCH TO DVLP OVERNIGHT IN THE WARM SECTOR SO WL KEEP POPS LO THERE.Z 02 .OKC... OK...NONE. TX...NONE.
In the hours before
Local storm report, Apr 27, 5:36 PM CDT, 5 hours 48 minutes before
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</html>The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 28, 12:15 AM CDT | Tornado Warning | OUN | Kay | 45 min |
| Apr 28, 12:58 AM CDT | Tornado Warning | OUN | Kay | 32 min |
| Apr 28, 5:32 PM CDT | Severe Thunderstorm Warning | OUN | Pushmataha | 43 min |
| Apr 28, 6:10 PM CDT | Severe Thunderstorm Warning | OUN | Pushmataha | 50 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.