Alert archive / Oklahoma / Tornado Warnings in 1999
Tornado Warning 132, NWS Norman, OK
NWS Norman, OK issued this tornado warning at Sep 12, 1999, 3:32 AM CDT for Woodward County, Oklahoma. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 12, 1999, 3:32 AM CDT (08:32 UTC)
- Expired
- Sep 12, 1999, 4:00 AM CDT
- In force
- 28 min
- Issued by
- NWS Norman, OK
- Area
- Whole counties
County Woodward County, OK
The radar
The Vance AFB radar (KVNX), 108 km from the middle of the area, began a volume at 08:33 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.
The nearest sounding before it
Dodge City, (KDDC), launched 00:00Z, 8.5 hours before the alert went out and 160 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
- 1386 J/kg
- Mixed-layer CIN
- -94 J/kg
- Mixed-layer LCL
- 963 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 0.8
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 tornado 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 tornado warning went out at Sep 11, 3:30 PM CDT, 12 hours 2 minutes earlier.
Area forecast discussion, Sep 11, 3:30 PM CDT, 12 hours 2 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 |
|---|---|---|---|---|
| Sep 11, 10:39 PM CDT | Severe Thunderstorm Warning | OUN | Cotton | 36 min |
| Sep 11, 10:56 PM CDT | Severe Thunderstorm Warning | OUN | Tillman | 34 min |
| Sep 11, 11:08 PM CDT | Severe Thunderstorm Warning | OUN | Comanche | 37 min |
| Sep 11, 11:29 PM CDT | Severe Thunderstorm Warning | OUN | Stephens | 31 min |
| Sep 11, 11:43 PM CDT | Severe Thunderstorm Warning | OUN | Comanche | 32 min |
| Sep 12, 12:15 AM CDT | Severe Thunderstorm Warning | OUN | Comanche | 30 min |
| Sep 12, 12:32 AM CDT | Severe Thunderstorm Warning | OUN | Tillman | 28 min |
| Sep 12, 12:46 AM CDT | Severe Thunderstorm Warning | OUN | Comanche | 29 min |
| Sep 12, 12:53 AM CDT | Severe Thunderstorm Warning | OUN | Tillman | 37 min |
| Sep 12, 1:06 AM CDT | Severe Thunderstorm Warning | OUN | Cotton, Stephens | 39 min |
| Sep 12, 1:35 AM CDT | Severe Thunderstorm Warning | OUN | Harper | 40 min |
| Sep 12, 1:38 AM CDT | Severe Thunderstorm Warning | OUN | Comanche, Cotton, Tillman | 52 min |
| Sep 12, 2:10 AM CDT | Severe Thunderstorm Warning | OUN | Harper | 50 min |
| Sep 12, 2:30 AM CDT | Severe Thunderstorm Warning | OUN | Ellis | 45 min |
| Sep 12, 2:43 AM CDT | Flash Flood Warning | OUN | Kay | 2 hr |
| Sep 12, 3:01 AM CDT | Tornado Warning | OUN | Woodward | 29 min |
| Sep 12, 3:20 AM CDT | Severe Thunderstorm Warning | OUN | Woods | 40 min |
| Sep 12, 3:57 AM CDT | Severe Thunderstorm Warning | OUN | Dewey, Major, Woods | 33 min |
| Sep 12, 4:21 AM CDT | Severe Thunderstorm Warning | OUN | Alfalfa, Major | 24 min |
| Sep 12, 4:38 AM CDT | Flash Flood Warning | OUN | Woods, Woodward | 2 hr |
| Sep 12, 10:45 AM CDT | Flash Flood Warning | OUN | Carter, Love | 2 hr |
| Sep 11, 7:15 PM CDT | Severe Thunderstorm Warning | OUN | Archer, Wichita, Wilbarger | 30 min |
| Sep 11, 7:35 PM CDT | Severe Thunderstorm Warning | OUN | Knox | 40 min |
| Sep 11, 7:44 PM CDT | Severe Thunderstorm Warning | OUN | Archer, Wichita | 46 min |
| Sep 11, 8:27 PM CDT | Severe Thunderstorm Warning | OUN | Hardeman | 48 min |
| Sep 11, 9:36 PM CDT | Severe Thunderstorm Warning | OUN | Wilbarger | 24 min |
| Sep 11, 11:53 PM CDT | Severe Thunderstorm Warning | OUN | Hardeman, Wilbarger | 37 min |
Nearby
Tornado Warnings in Oklahoma, 1999Every tornado warning in 1999Tornadoes in 1999
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.