Alert archive / Oklahoma / Tornado Watches in 2007
Tornado Watch 94
The Storm Prediction Center issued this tornado watch at Mar 30, 2007, 1:31 PM CDT for 39 counties in Oklahoma. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 30, 2007, 1:31 PM CDT (18:31 UTC)
- Expired
- Mar 30, 2007, 8:00 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 39 counties
Atoka County, OK, Bryan County, OK, Caddo County, OK, Canadian County, OK, Carter County, OK, Choctaw County, OK, Cleveland County, OK, Coal County, OK, Comanche County, OK, Cotton County, OK, Creek County, OK, Garvin County, OK, Grady County, OK, Haskell County, OK, Hughes County, OK, Jefferson County, OK, Johnston County, OK, Kingfisher County, OK, Latimer County, OK, Lincoln County, OK, Logan County, OK, Love County, OK, Marshall County, OK, McClain County, OK, McIntosh County, OK, Murray County, OK, Muskogee County, OK, Okfuskee County, OK, Oklahoma County, OK, Okmulgee County, OK, Payne County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Pushmataha County, OK, Seminole County, OK, Stephens County, OK, Tulsa County, OK, Wagoner County, OK
The radar
The Norman radar (KTLX), 68 km from the middle of the area, began a volume at 18:33 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.
Warnings issued inside it
14 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 30, 1:37 PM CDT | Flash Flood Warning | OUN | Stephens | 3 hr |
| Mar 30, 1:38 PM CDT | Flash Flood Warning | OUN | Comanche | 3 hr |
| Mar 30, 1:48 PM CDT | Flash Flood Warning | OUN | Cotton | 3 hr |
| Mar 30, 3:20 PM CDT | Flash Flood Warning | OUN | Carter, Love | 3 hr |
| Mar 30, 4:01 PM CDT | Flash Flood Warning | OUN | Jefferson | 4 hr |
| Mar 30, 4:03 PM CDT | Severe Thunderstorm Warning | OUN | Jefferson | 42 min |
| Mar 30, 4:29 PM CDT | Flash Flood Warning | OUN | Stephens | 3 hr |
| Mar 30, 5:33 PM CDT | Flash Flood Warning | OUN | Canadian, Oklahoma | 117 min |
| Mar 30, 5:33 PM CDT | Flash Flood Warning | OUN | Cleveland, Grady, McClain | 117 min |
| Mar 30, 6:11 PM CDT | Flash Flood Warning | OUN | Carter, Love | 3 hr |
| Mar 30, 6:17 PM CDT | Tornado Warning | OUN | Cleveland, McClain | 28 min |
| Mar 30, 7:05 PM CDT | Flash Flood Warning | OUN | Murray | 4 hr |
| Mar 30, 7:15 PM CDT | Severe Thunderstorm Warning | OUN | Pontotoc | 45 min |
| Mar 30, 8:00 PM CDT | Tornado Warning | OUN | Seminole | 30 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Norman, OK (KOUN), launched 12:00Z, 6.5 hours before the alert went out and 60 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
- 583 J/kg
- Mixed-layer CIN
- -13 J/kg
- Mixed-layer LCL
- 588 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 189 m²/s²
- 0-3 km storm-relative helicity
- 128 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.1
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 29, 10:01 PM CDT | Mesoscale Discussion | SPC | Adair, Atoka, Bryan, Carter, Cherokee, Choctaw and 26 more | 119 min |
| Mar 30, 11:25 AM CDT | Mesoscale Discussion | SPC | Alfalfa, Atoka, Blaine, Bryan, Caddo, Canadian and 46 more | 65 min |
| Mar 30, 3:31 PM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Carter, Cleveland, Coal, Garvin and 19 more | 89 min |
| Mar 30, 6:53 PM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Carter, Choctaw, Cleveland, Coal and 23 more | 97 min |
Nearby
Tornado Watches in Oklahoma, 2007Every tornado watch in 2007
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.