Alert archive / Arkansas / Severe Thunderstorm Watches in 2001
Severe Thunderstorm Watch 770
The Storm Prediction Center issued this severe thunderstorm watch at Oct 10, 2001, 4:00 PM CDT for 22 counties in Arkansas; LeFlore County, McCurtain County, Oklahoma. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Oct 10, 2001, 4:00 PM CDT (21:00 UTC)
- Expired
- Oct 10, 2001, 9:00 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 24 counties
Benton County, AR, Boone County, AR, Carroll County, AR, Crawford County, AR, Franklin County, AR, Garland County, AR, Howard County, AR, Johnson County, AR, Logan County, AR, Madison County, AR, Marion County, AR, Montgomery County, AR, Newton County, AR, Pike County, AR, Polk County, AR, Pope County, AR, Scott County, AR, Searcy County, AR, Sebastian County, AR, Sevier County, AR, Washington County, AR, Yell County, AR, LeFlore County, OK, McCurtain County, OK
The radar
The Western Arkansas radar (KSRX), 44 km from the middle of the area, began a volume at 21:01 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
14 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 10, 4:00 PM CDT | Severe Thunderstorm Warning | TSA | Sebastian | 60 min |
| Oct 10, 4:00 PM CDT | Severe Thunderstorm Warning | TSA | Crawford | 60 min |
| Oct 10, 4:24 PM CDT | Tornado Warning | TSA | Carroll, Madison | 66 min |
| Oct 10, 4:31 PM CDT | Severe Thunderstorm Warning | LZK | Logan, Scott | 59 min |
| Oct 10, 4:31 PM CDT | Severe Thunderstorm Warning | TSA | Franklin, Madison | 59 min |
| Oct 10, 4:56 PM CDT | Severe Thunderstorm Warning | LZK | Johnson | 64 min |
| Oct 10, 5:09 PM CDT | Severe Thunderstorm Warning | LZK | Yell | 56 min |
| Oct 10, 5:18 PM CDT | Severe Thunderstorm Warning | LZK | Newton | 57 min |
| Oct 10, 5:28 PM CDT | Severe Thunderstorm Warning | LZK | Pope | 57 min |
| Oct 10, 5:55 PM CDT | Severe Thunderstorm Warning | LZK | Conway, Searcy, Van Buren | 55 min |
| Oct 10, 6:05 PM CDT | Severe Thunderstorm Warning | SHV | McCurtain | 55 min |
| Oct 10, 6:53 PM CDT | Severe Thunderstorm Warning | SHV | Howard | 37 min |
| Oct 10, 7:33 PM CDT | Severe Thunderstorm Warning | LZK | Pike | 42 min |
| Oct 10, 7:48 PM CDT | Severe Thunderstorm Warning | SHV | Sevier | 42 min |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 9.0 hours before the alert went out and 218 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
- 1190 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 507 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 434 m²/s²
- 0-3 km storm-relative helicity
- 490 m²/s²
- Significant tornado parameter
- 2.6
- Supercell composite
- 12.8
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 |
|---|---|---|---|---|
| Oct 10, 6:00 PM CDT | Severe Thunderstorm Watch | SPC | Baxter, Clay, Cleburne, Conway, Craighead, Cross and 23 more | 5 hr |
| Oct 9, 9:00 PM CDT | Tornado Watch | SPC | Cherokee, Cleveland, Creek, Garvin, Haskell, Hughes and 16 more | 4 hr |
| Oct 10, 12:00 PM CDT | Severe Thunderstorm Watch | SPC | Atoka, Bryan, Carter, Coal, Johnston, Latimer and 7 more | 5 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.