Alert archive / Oklahoma / Tornado Warnings in 1991
Tornado Warning 15, NWS Norman, OK
NWS Norman, OK issued this tornado warning at Mar 26, 1991, 5:03 PM CST for Harper County, Woods County, Oklahoma. It was in force for 57 min. 2 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
- Mar 26, 1991, 5:03 PM CST (23:03 UTC)
- Expired
- Mar 26, 1991, 6:00 PM CST
- In force
- 57 min
- Issued by
- NWS Norman, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Harper County, OK, Woods County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 26, 5:12 PM CST | Hail 1.75 | Woods, OK | |
| Mar 26, 5:30 PM CST | Hail 1.25 | Woods, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Dodge City, (KDDC), launched 12:00Z, 11.1 hours before the alert went out and 124 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3441 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- -99 m²/s²
- 0-3 km storm-relative helicity
- 4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 26, 3:40 PM CST | Severe Thunderstorm Warning | OUN | Ellis, Harper | 65 min |
| Mar 26, 4:05 PM CST | Severe Thunderstorm Warning | OUN | Ellis, Roger Mills, Woodward | 55 min |
| Mar 26, 4:29 PM CST | Severe Thunderstorm Warning | OUN | Roger Mills | 46 min |
| Mar 26, 4:42 PM CST | Severe Thunderstorm Warning | OUN | Harper | 48 min |
| Mar 26, 4:59 PM CST | Severe Thunderstorm Warning | OUN | Woods | 61 min |
| Mar 26, 5:11 PM CST | Severe Thunderstorm Warning | OUN | Dewey, Ellis, Woodward | 64 min |
| Mar 26, 5:11 PM CST | Severe Thunderstorm Warning | OUN | Roger Mills | 64 min |
| Mar 26, 5:51 PM CST | Severe Thunderstorm Warning | OUN | Woods | 69 min |
Nearby
Tornado Warnings in Oklahoma, 1991Every tornado warning in 1991Tornadoes in 1991
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.