Alert archive / Arkansas / Special Weather Statements in 2021
Special Weather Statement, NWS Tulsa, OK
NWS Tulsa, OK issued this special weather statement at Oct 24, 2021, 8:21 PM CDT for Sebastian County, Arkansas. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Oct 24, 2021, 8:21 PM CDT (01:21 UTC)
- Expired
- Oct 24, 2021, 8:45 PM CDT
- In force
- 24 min
- Issued by
- NWS Tulsa, OK
- Hail
- 0.75 in
- Wind
- 40
County Sebastian County, AR
The radar
The Western Arkansas radar (KSRX), 27 km from the middle of the area, began a volume at 01:24 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
Springfield, MO (KSGF), launched 00:00Z, 1.4 hours before the alert went out and 209 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
- 1534 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 846 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 296 m²/s²
- 0-3 km storm-relative helicity
- 317 m²/s²
- Significant tornado parameter
- 2.8
- Supercell composite
- 12.3
The text
As transmitted.
800
WWUS84 KTSA 250121
SPSTSA
Special Weather Statement
National Weather Service Tulsa OK
821 PM CDT Sun Oct 24 2021
ARZ029-OKZ076-250145-
Sebastian AR-Le Flore OK-
821 PM CDT Sun Oct 24 2021
...A strong thunderstorm will impact portions of west central
Sebastian and northeastern Le Flore Counties through 845 PM CDT...
At 821 PM CDT, Doppler radar indicated a strong thunderstorm over
Panama, moving east at 30 mph.
HAZARD...Winds in excess of 40 mph and penny size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations in or near the path include...
Poteau... Pocola...
Spiro... Panama...
Hackett... Bonanza...
Cameron... Shady Point...
Rock Island... Scullyville...
Jenson...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
A Tornado Watch remains in effect until 1100 PM CDT for west central
Arkansas...and southeastern Oklahoma.
&&
LAT...LON 3509 9475 3527 9470 3523 9439 3501 9441
TIME...MOT...LOC 0121Z 281DEG 24KT 3517 9464
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH
$$
LacyThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 24, 7:58 PM CDT | Special Weather Statement | TSA | LeFlore | 32 min |
| Oct 24, 7:36 PM CDT | Special Weather Statement | TSA | Crawford | 24 min |
| Oct 24, 7:59 PM CDT | Special Weather Statement | TSA | Crawford | 31 min |
| Oct 24, 8:07 PM CDT | Severe Thunderstorm Warning | TSA | Crawford, Franklin, Sebastian | 38 min |
| Oct 24, 8:40 PM CDT | Special Weather Statement | TSA | Sebastian | 50 min |
| Oct 24, 8:41 PM CDT | Special Weather Statement | TSA | Franklin | 34 min |
| Oct 24, 9:05 PM CDT | Special Weather Statement | TSA | Sebastian | 10 min |
Nearby
Special Weather Statements in Arkansas, 2021Every special weather statement in 2021
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.