Alert archive / Oklahoma / Special Weather Statements in 2021
Special Weather Statement, NWS Shreveport, LA
NWS Shreveport, LA issued this special weather statement at Nov 10, 2021, 10:12 PM CST for McCurtain County, Oklahoma. It was in force for 33 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
- Nov 10, 2021, 10:12 PM CST (04:12 UTC)
- Expired
- Nov 10, 2021, 10:45 PM CST
- In force
- 33 min
- Issued by
- NWS Shreveport, LA
- Hail
- 0.75 in
- Wind
- 50
County McCurtain County, OK
The radar
The Western Arkansas radar (KSRX), 120 km from the middle of the area, began a volume at 04:12 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
Shreveport, LA (KSHV), launched 00:00Z, 4.2 hours before the alert went out and 207 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
- 158 J/kg
- Mixed-layer CIN
- -89 J/kg
- Mixed-layer LCL
- 968 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 198 m²/s²
- 0-3 km storm-relative helicity
- 302 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.3
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Shreveport, LA wrote its last area forecast discussion before this special weather statement went out at Nov 10, 9:08 PM CST, 1 hour 4 minutes earlier.
Area forecast discussion, Nov 10, 9:08 PM CST, 1 hour 4 minutes before
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</html>Hazardous weather outlook, Nov 10, 7:09 AM CST, 15 hours 3 minutes before
Hazardous Weather Outlook National Weather Service Shreveport LA 709 AM CST Wed Nov 10 2021 ARZ050-051-059>061-070>072-LAZ001>003-010-OKZ077-TXZ096-097- 108>112-124>126-136>138-149>153-165-111315- Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette- Columbia-Caddo-Bossier-Webster-De Soto-McCurtain-Red River-Bowie- Franklin-Titus-Camp-Morris-Cass-Wood-Upshur-Marion-Smith-Gregg- Harrison-Cherokee-Rusk-Panola-Nacogdoches-Shelby-Angelina- 709 AM CST Wed Nov 10 2021 This Hazardous Weather Outlook is for portions of southwest Arkansas, northwest Louisiana, southeast Oklahoma, east Texas and northeast Texas. .DAY ONE...Today and Tonight... Showers and thunderstorms will begin to increase across the area by late this afternoon through the overnight hours with the next cold front and associated upper level storm system entering the region. Although the overall severe weather threat is generally low, a few severe storms cannot be ruled out along a developing squall line by late this evening through early Thursday morning. Damaging winds, large hail, and an isolated tornado will all be possible through daybreak before the line of storms exits to the east. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday... Showers and thunderstorms will be ending early Thursday as a cold front continues advancing across the region. Therefore, the threat of severe weather is expected to end as well prior to daybreak as skies gradually clear behind the cold front through the remainder of Thursday. .SPOTTER INFORMATION STATEMENT... Activation of emergency management personnel, amateur radio operators and storm spotters may be needed tonight through early Thursday morning. ARZ073-LAZ004>006-011>014-017>022-TXZ166-167-111315- Union-Claiborne-Lincoln-Red River-Bienville-Jackson-Ouachita- Sabine-Natchitoches-Winn-Grant-Caldwell-La Salle-San Augustine- 709 AM CST Wed Nov 10 2021 This Hazardous Weather Outlook is for portions of south central Arkansas, north central Louisiana, northwest Louisiana and east Texas. .DAY ONE...Today and Tonight... Showers and thunderstorms will begin to increase across the area by late this evening through the overnight hours with the next cold front and associated upper level storm system entering the region. Although the overall severe weather threat is generally low, a few strong storms cannot be ruled out along a developing squall line by late this evening through early Thursday morning. However, any gusty winds along the line of storms should remain non-severe. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday... Showers and thunderstorms will be ending by mid to late Thursday morning as a cold front continues advancing across the region. Skies will gradually clear behind the front through the remainder of Thursday afternoon and evening. .SPOTTER INFORMATION STATEMENT... Activation of emergency management personnel, amateur radio operators and storm spotters may be needed tonight through early Thursday morning. 19
In the hours before
Special weather statement, Nov 10, 10:00 PM CST, 12 minutes before
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</html>Special weather statement, Nov 10, 10:12 PM CST, 0 minutes before
Special Weather Statement
National Weather Service Shreveport LA
1012 PM CST Wed Nov 10 2021
ARZ050-OKZ077-110445-
Sevier AR-McCurtain OK-
1012 PM CST Wed Nov 10 2021
...A strong thunderstorm will impact portions of northwestern Sevier
and northeastern McCurtain Counties through 1045 PM CST...
At 1011 PM CST, Doppler radar was tracking a strong thunderstorm near
Broken Bow, or 21 miles west of De Queen, moving east at 45 mph.
HAZARD...Wind gusts up to 50 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 impacted include...
De Queen, Broken Bow, Gillham, Eagletown, Plunketville, Hochatown,
Watson, West Line, Oak Hill, Sherwood and Smithville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
&&
LAT...LON 3419 9447 3419 9428 3409 9422 3393 9478
3418 9493 3451 9460 3451 9446
TIME...MOT...LOC 0411Z 249DEG 41KT 3409 9472
MAX HAIL SIZE...0.75 IN
MAX WIND GUST...50 MPH
24The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 10, 10:28 PM CST | Special Weather Statement | SHV | Franklin, Wood | 62 min |
| Nov 10, 10:39 PM CST | Special Weather Statement | SHV | Red River | 51 min |
| Nov 10, 10:46 PM CST | Severe Thunderstorm Warning | SHV | Camp, Franklin, Marion, Morris, Titus, Upshur and 1 more | 59 min |
| Nov 10, 11:09 PM CST | Special Weather Statement | SHV | Smith | 51 min |
| Nov 10, 11:37 PM CST | Special Weather Statement | SHV | Cass, Morris, Upshur | 23 min |
| Nov 10, 11:54 PM CST | Special Weather Statement | SHV | Gregg, Harrison, Marion, Rusk | 66 min |
| Nov 11, 12:33 AM CST | Special Weather Statement | SHV | Cherokee | 27 min |
| Nov 11, 12:36 AM CST | Special Weather Statement | SHV | Panola, Rusk | 39 min |
| Nov 11, 12:50 AM CST | Tornado Warning | SHV | Harrison, Panola | 25 min |
| Nov 11, 1:18 AM CST | Special Weather Statement | SHV | Shelby | 57 min |
| Nov 11, 2:20 AM CST | Special Weather Statement | SHV | Sabine, San Augustine | 40 min |
| Nov 11, 2:23 AM CST | Special Weather Statement | SHV | Cherokee | 52 min |
| Nov 11, 3:01 AM CST | Special Weather Statement | SHV | Angelina, Sabine | 44 min |
| Nov 11, 3:49 AM CST | Special Weather Statement | SHV | Angelina | 26 min |
| Nov 11, 1:14 AM CST | Tornado Warning | SHV | Bossier, Caddo | 22 min |
| Nov 11, 1:23 AM CST | Special Weather Statement | SHV | Bossier, Webster | 67 min |
| Nov 11, 1:32 AM CST | Severe Thunderstorm Warning | SHV | Bienville, Bossier, Caddo, Claiborne, De Soto, Lincoln and 2 more | 58 min |
| Nov 11, 2:05 AM CST | Tornado Warning | SHV | Bienville, Red River | 25 min |
| Nov 11, 2:30 AM CST | Special Weather Statement | SHV | Bienville, Lincoln | 45 min |
| Nov 11, 2:56 AM CST | Special Weather Statement | SHV | Jackson, Lincoln, Union | 34 min |
| Nov 11, 2:59 AM CST | Special Weather Statement | SHV | Natchitoches, Sabine, Winn | 46 min |
| Nov 11, 3:26 AM CST | Special Weather Statement | SHV | Ouachita | 64 min |
| Nov 11, 3:45 AM CST | Special Weather Statement | SHV | Caldwell, Grant, Winn | 60 min |
| Nov 11, 4:36 AM CST | Special Weather Statement | SHV | LaSalle | 24 min |
| Nov 11, 12:08 AM CST | Special Weather Statement | SHV | Hempstead | 37 min |
| Nov 11, 2:17 AM CST | Special Weather Statement | SHV | Union | 43 min |
| Nov 10, 10:00 PM CST | Special Weather Statement | SHV | McCurtain | 45 min |
Nearby
Special Weather Statements in Oklahoma, 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.