Alert archive / Arkansas / Special Weather Statements in 2021
Special Weather Statement, NWS Shreveport, LA
NWS Shreveport, LA issued this special weather statement at Jul 27, 2021, 8:05 AM CDT for Columbia County, Arkansas. It was in force for 25 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
- Jul 27, 2021, 8:05 AM CDT (13:05 UTC)
- Expired
- Jul 27, 2021, 8:30 AM CDT
- In force
- 25 min
- Issued by
- NWS Shreveport, LA
County Columbia County, AR
The radar
The Shreveport radar (KSHV), 114 km from the middle of the area, began a volume at 13:06 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 12:00Z, 1.1 hours before the alert went out and 106 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
- 1955 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 1196 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 8 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.4
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 Jul 27, 6:34 AM CDT, 1 hour 31 minutes earlier.
Area forecast discussion, Jul 27, 6:34 AM CDT, 1 hour 31 minutes before
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</html>Hazardous weather outlook, Jul 27, 5:44 AM CDT, 2 hours 21 minutes before
Hazardous Weather Outlook National Weather Service Shreveport LA 544 AM CDT Tue Jul 27 2021 ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077- TXZ096-097-108>112-124>126-136>138-149>153-165>167-281100- Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette- Columbia-Union-Caddo-Bossier-Webster-Claiborne-Lincoln-De Soto- Red River-Bienville-Jackson-Ouachita-Sabine-Natchitoches-Winn- Grant-Caldwell-La Salle-McCurtain-Bowie-Franklin-Titus-Camp- Morris-Cass-Wood-Upshur-Marion-Smith-Gregg-Harrison-Cherokee-Rusk- Panola-Nacogdoches-Shelby-Angelina-San Augustine- 544 AM CDT Tue Jul 27 2021 This Hazardous Weather Outlook is for portions of south central Arkansas, southwest Arkansas, north central Louisiana, northwest Louisiana, southeast Oklahoma, east Texas and northeast Texas. .DAY ONE...Today and Tonight... A Heat Advisory is in effect today for all of the Four State Region. Temperatures will again climb into the mid 90s this afternoon across the area, and when combined with the humidity, will result in heat indices ranging from 105 to 110 degrees. In addition, scattered showers and thunderstorms are expected to develop today over much of the area, as an upper level disturbance drifts west southwest over the region. Isolated strong storms can not be ruled out, with locally gusty winds and brief heavy rainfall possible. These storms will gradually diminish later this evening. .DAYS TWO THROUGH SEVEN...Wednesday through Monday... Hot and humid conditions will continue across the region throughout the remainder of this week through this weekend, with heat indices nearing or exceeding 105 degrees each day. Isolated to widely scattered showers and thunderstorms will be possible Wednesday over East Texas and North Louisiana, as an upper level disturbance lingers over these areas. Any showers and thunderstorms will become more isolated Thursday through the weekend over Deep East Texas and Northcentral Louisiana, as an upper level ridge of high pressure builds southeast into the region. This will also result in the hottest temperatures so far this summer across the area, with readings nearing 100 degrees. However, a weak cool front will begin to drift south into the region Monday, which will focus an increase in showers and thunderstorms, as well as slightly cooler temperatures. .SPOTTER INFORMATION STATEMENT... Activation of emergency management personnel...amateur radio operators...and storm spotters should not be needed through tonight. 15
In the hours before
Special weather statement, Jul 27, 8:05 AM CDT, 0 minutes before
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</html>The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 2:18 PM CDT | Heat Advisory | SHV | Angelina, Bowie, Camp, Cass, Cherokee, Franklin and 15 more | 29 hr |
| Jul 27, 2:21 PM CDT | Special Weather Statement | SHV | Bowie | 39 min |
| Jul 27, 3:23 PM CDT | Special Weather Statement | SHV | Morris | 52 min |
| Jul 27, 6:54 PM CDT | Special Weather Statement | SHV | San Augustine | 51 min |
| Jul 27, 2:13 PM CDT | Special Weather Statement | SHV | LaSalle | 47 min |
| Jul 27, 3:38 PM CDT | Severe Thunderstorm Warning | SHV | Bienville | 52 min |
| Jul 27, 4:01 PM CDT | Special Weather Statement | SHV | Bienville | 44 min |
| Jul 27, 4:29 PM CDT | Special Weather Statement | SHV | Red River | 31 min |
| Jul 27, 4:38 PM CDT | Special Weather Statement | SHV | Bienville | 37 min |
| Jul 27, 4:57 PM CDT | Special Weather Statement | SHV | Red River | 33 min |
| Jul 27, 5:04 PM CDT | Special Weather Statement | SHV | Red River | 26 min |
| Jul 27, 5:53 PM CDT | Special Weather Statement | SHV | Claiborne | 37 min |
| Jul 27, 6:01 PM CDT | Special Weather Statement | SHV | Sabine | 44 min |
| Jul 27, 6:19 PM CDT | Severe Thunderstorm Warning | SHV | Sabine | 41 min |
| Jul 27, 3:05 PM CDT | Special Weather Statement | SHV | Sevier | 40 min |
| Jul 27, 3:30 PM CDT | Special Weather Statement | SHV | Nevada | 45 min |
| Jul 27, 3:46 PM CDT | Special Weather Statement | SHV | Sevier | 44 min |
| Jul 27, 4:21 PM CDT | Special Weather Statement | SHV | Sevier | 39 min |
| Jul 27, 5:17 PM CDT | Special Weather Statement | SHV | Union | 28 min |
| Jul 27, 5:37 PM CDT | Special Weather Statement | SHV | Hempstead | 23 min |
| Jul 27, 5:57 PM CDT | Special Weather Statement | SHV | Little River | 33 min |
| Jul 27, 3:55 PM CDT | Special Weather Statement | SHV | McCurtain | 50 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.