Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 201, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at May 10, 1996, 2:10 AM CDT for Harper County, Oklahoma. It was in force for 35 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 10, 1996, 2:10 AM CDT (07:10 UTC)
- Expired
- May 10, 1996, 2:45 AM CDT
- In force
- 35 min
- Issued by
- NWS Norman, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Harper County, OK
The radar
The Dodge City radar (KDDC), 111 km from the middle of the area, began a volume at 07:11 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 10, 2:20 AM CDT | Thunderstorm Wind | Selman, 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
Dodge City, (KDDC), launched 00:00Z, 7.2 hours before the alert went out and 111 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
- 1389 J/kg
- Mixed-layer CIN
- -163 J/kg
- Mixed-layer LCL
- 1865 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 156 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
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 May 9, 9:44 PM CDT, 4 hours 26 minutes earlier.
Area forecast discussion, May 9, 9:44 PM CDT, 4 hours 26 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE OKLAHOMA CITY OK 935 PM CDT THU MAY 9 1996 AS STORMS IN NORTHWEST OKLAHOMA MOVE EAST AWAY FROM THE DRYLINE AND MID-LEVEL JET STREAK INTO A MORE STABLE ATMOSPHERE, THEY CONTINUE TO WEAKEN AND DIMINISH. SO, ALFALFA AND MAJOR COUNTIES WILL BE REMOVED FROM THE TORNDAO WATCH. IT APPEARS THAT ANY SEVERE WEATHER IN NORTH CENTRAL OKLAHOMA MUST WAIT UNTIL THE COLD FRONT APPROACHES TOMORROW MORNING. THE LATEST MAPS MODEL SUGGESTS THAT THE FRONT WILL BE LOCATED FROM NEAR KANSAS CITY TO ARNETT BY 12Z. CONSIDERING THE SURFACE MOISTURE CONVERGENCE, THE STRENGTH OF THE FRONT, AND THE LOCATION OF THE LOW LEVEL JET IN THE MORNING, A SQUALL LINE MAY DELVELOP AND MOVE INTO NORTHERN OKLAHOMA AROUND SUNRISE. .OKC... OK...NONE. TX...NONE.
In the hours before
Local storm report, May 9, 9:29 PM CDT, 4 hours 41 minutes before
LOCAL STORM REPORT NATIONAL WEATHER SERVICE OKLAHOMA CITY OK 925 PM CDT THU MAY 09 1996 TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS... DATE . ....COUNTY LOCATION.... 835 PM REYDON OK 1.75 INCH HAIL IN REYDON 05/09/96 RODGER MILLS ALA
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 8:00 PM CDT | Severe Thunderstorm Warning | OUN | Roger Mills | 45 min |
| May 9, 8:45 PM CDT | Severe Thunderstorm Warning | OUN | Roger Mills | 45 min |
| May 9, 9:58 PM CDT | Tornado Warning | OUN | Ellis | 32 min |
| May 9, 10:15 PM CDT | Severe Thunderstorm Warning | OUN | Harper | 30 min |
| May 9, 10:20 PM CDT | Severe Thunderstorm Warning | OUN | Roger Mills | 40 min |
| May 9, 10:30 PM CDT | Severe Thunderstorm Warning | OUN | Ellis | 45 min |
| May 9, 11:00 PM CDT | Severe Thunderstorm Warning | OUN | Dewey | 45 min |
| May 10, 12:49 AM CDT | Severe Thunderstorm Warning | OUN | Harper | 26 min |
| May 10, 1:12 AM CDT | Severe Thunderstorm Warning | OUN | Woods | 48 min |
| May 10, 1:30 AM CDT | Severe Thunderstorm Warning | OUN | Ellis | 45 min |
| May 10, 1:40 AM CDT | Tornado Warning | OUN | Woods | 35 min |
| May 10, 1:57 AM CDT | Severe Thunderstorm Warning | OUN | Woodward | 48 min |
| May 10, 2:17 AM CDT | Severe Thunderstorm Warning | OUN | Woods | 43 min |
| May 10, 2:23 AM CDT | Severe Thunderstorm Warning | OUN | Ellis | 37 min |
| May 10, 2:44 AM CDT | Severe Thunderstorm Warning | OUN | Harper | 46 min |
| May 10, 2:46 AM CDT | Severe Thunderstorm Warning | OUN | Major, Woods, Woodward | 59 min |
| May 10, 2:46 AM CDT | Severe Thunderstorm Warning | OUN | Alfalfa | 59 min |
| May 10, 3:45 AM CDT | Severe Thunderstorm Warning | OUN | Alfalfa, Garfield, Major | 45 min |
| May 10, 3:45 AM CDT | Severe Thunderstorm Warning | OUN | Grant | 45 min |
| May 10, 4:14 AM CDT | Severe Thunderstorm Warning | OUN | Garfield, Kay, Noble | 46 min |
| May 10, 5:00 AM CDT | Severe Thunderstorm Warning | OUN | Garfield, Noble | 45 min |
| May 10, 5:09 AM CDT | Severe Thunderstorm Warning | OUN | Woods | 51 min |
| May 10, 6:31 AM CDT | Severe Thunderstorm Warning | OUN | Grant | 44 min |
| May 10, 6:45 PM CDT | Severe Thunderstorm Warning | OUN | Pushmataha | 60 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.