Alert archive / Arkansas / Severe Thunderstorm Watches in 2001
Severe Thunderstorm Watch 727
The Storm Prediction Center issued this severe thunderstorm watch at Sep 8, 2001, 1:15 AM CDT for 27 counties in Arkansas; McCurtain County, Oklahoma. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 8, 2001, 1:15 AM CDT (06:15 UTC)
- Expired
- Sep 8, 2001, 6:00 AM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 28 counties
Baxter County, AR, Boone County, AR, Cleburne County, AR, Conway County, AR, Faulkner County, AR, Franklin County, AR, Fulton County, AR, Garland County, AR, Howard County, AR, Izard County, AR, Johnson County, AR, Logan County, AR, Marion County, AR, Montgomery County, AR, Newton County, AR, Perry County, AR, Pike County, AR, Polk County, AR, Pope County, AR, Scott County, AR, Searcy County, AR, Sebastian County, AR, Sevier County, AR, Sharp County, AR, Stone County, AR, Van Buren County, AR, Yell County, AR, McCurtain County, OK
The radar
The Western Arkansas radar (KSRX), 66 km from the middle of the area, began a volume at 06:15 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
3 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 8, 1:16 AM CDT | Severe Thunderstorm Warning | SHV | McCurtain | 59 min |
| Sep 8, 1:21 AM CDT | Severe Thunderstorm Warning | LZK | Johnson, Logan | 39 min |
| Sep 8, 1:21 AM CDT | Severe Thunderstorm Warning | LZK | Scott | 39 min |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 6.3 hours before the alert went out and 219 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
- 932 J/kg
- Mixed-layer CIN
- -149 J/kg
- Mixed-layer LCL
- 2014 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 178 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
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, 10:30 PM CDT | Severe Thunderstorm Watch | SPC | Benton, Boone, Carroll, Crawford, Franklin, Madison and 2 more | 6 hr |
| Sep 7, 7:00 PM CDT | Tornado Watch | SPC | Atoka, Carter, Cherokee, Cleveland, Coal, Comanche and 33 more | 5 hr |
| Sep 8, 3:00 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Atoka, Bryan, Cherokee, Choctaw, Coal and 14 more | 6 hr |
| Sep 8, 5:45 PM CDT | Severe Thunderstorm Watch | SPC | Carter, Jefferson, Love, Marshall | 6 hr |
Nearby
Severe Thunderstorm Watches in Arkansas, 2001Severe 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.