Alert archive / Oklahoma / Severe Thunderstorm Watches in 2001
Severe Thunderstorm Watch 729
The Storm Prediction Center issued this severe thunderstorm watch at Sep 8, 2001, 3:00 PM CDT for 20 counties in Oklahoma. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 8, 2001, 3:00 PM CDT (20:00 UTC)
- Expired
- Sep 8, 2001, 9:00 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
Counties Adair County, OK, Atoka County, OK, Bryan County, OK, Cherokee County, OK, Choctaw County, OK, Coal County, OK, Haskell County, OK, Hughes County, OK, Johnston County, OK, Latimer County, OK, LeFlore County, OK, McIntosh County, OK, Muskogee County, OK, Okfuskee County, OK, Okmulgee County, OK, Pittsburg County, OK, Pontotoc County, OK, Pushmataha County, OK, Seminole County, OK, Sequoyah County, OK
The radar
The Tulsa radar (KINX), 127 km from the middle of the area, began a volume at 20:01 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
9 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 8, 3:41 PM CDT | Severe Thunderstorm Warning | TSA | Haskell, Latimer | 64 min |
| Sep 8, 3:50 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 55 min |
| Sep 8, 4:45 PM CDT | Severe Thunderstorm Warning | TSA | Latimer | 60 min |
| Sep 8, 5:18 PM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 57 min |
| Sep 8, 5:30 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 60 min |
| Sep 8, 6:09 PM CDT | Severe Thunderstorm Warning | TSA | Latimer | 66 min |
| Sep 8, 6:14 PM CDT | Flash Flood Warning | TSA | Latimer | 3 hr |
| Sep 8, 6:30 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 60 min |
| Sep 8, 6:43 PM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 62 min |
The nearest sounding before it
Norman, OK (KOUN), launched 12:00Z, 8.0 hours before the alert went out and 149 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
- 1774 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 174 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.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 7:00 PM CDT | Tornado Watch | SPC | Atoka, Carter, Cherokee, Cleveland, Coal, Comanche and 33 more | 5 hr |
| Sep 7, 10:30 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Atoka, Bryan, Cherokee, Choctaw, Coal and 14 more | 6 hr |
| Sep 8, 1:15 AM CDT | Severe Thunderstorm Watch | SPC | McCurtain | 5 hr |
| Sep 8, 5:45 PM CDT | Severe Thunderstorm Watch | SPC | Carter, Jefferson, Love, Marshall | 6 hr |
Nearby
Severe Thunderstorm Watches in Oklahoma, 2001Every severe thunderstorm watch in 2001
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.