Alert archive / Texas / Dense Fog Advisories in 2021

Dense Fog Advisory 3, NWS Shreveport, LA

March 15, 202121 counties in Texas; 7 parishes in Louisiana; 9 counties in Arkansas

NWS Shreveport, LA issued this dense fog advisory at Mar 15, 2021, 3:03 AM CDT for 21 counties in Texas; 7 parishes in Louisiana; 9 counties in Arkansas. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Mar 15, 2021, 3:03 AM CDT (08:03 UTC)
Expired
Mar 15, 2021, 10:00 AM CDT
In force
7 hr
Issued by
NWS Shreveport, LA
All 37 counties

Columbia County, AR, Hempstead County, AR, Howard County, AR, Lafayette County, AR, Little River County, AR, Miller County, AR, Nevada County, AR, Sevier County, AR, Union County, AR, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Claiborne Parish, LA, De Soto Parish, LA, Red River Parish, LA, Webster Parish, LA, Angelina County, TX, Bowie County, TX, Camp County, TX, Cass County, TX, Cherokee County, TX, Franklin County, TX, Gregg County, TX, Harrison County, TX, Marion County, TX, Morris County, TX, Nacogdoches County, TX, Panola County, TX, Red River County, TX, Rusk County, TX, Sabine County, TX, San Augustine County, TX, Shelby County, TX, Smith County, TX, Titus County, TX, Upshur County, TX, Wood County, TX

The radar

The Shreveport radar (KSHV), 46 km from the middle of the area, began a volume at 08:06 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.

What forecasters said that day

The local office's own words before this dense fog advisory 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 dense fog advisory went out at Mar 15, 12:54 AM CDT, 2 hours 9 minutes earlier.

Area forecast discussion, Mar 15, 12:54 AM CDT, 2 hours 9 minutes before
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Hazardous weather outlook, Mar 14, 10:09 AM CDT, 16 hours 54 minutes before
Hazardous Weather Outlook
National Weather Service Shreveport LA
1009 AM CDT Sun Mar 14 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>167-151515-
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-
1009 AM CDT Sun Mar 14 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 line of showers will continue moving into the region this
morning, and gradually move across the rest of the area during
the remainder of today. Additional thunderstorm development may be
possible this afternoon, with some of these storms being
potentially strong to severe. Damaging winds and isolated
tornadoes will be the primary threats with any of this activity,

.DAYS TWO THROUGH SEVEN...Monday through Saturday...

Thunderstorms will return to the area Tuesday and gradually
spread northward through Tuesday night ahead of another strong
upper trough and cold front. Thunderstorms chances will continue
into the day Wednesday as the front moves across the area. Some
thunderstorms could be severe on Wednesday.

.SPOTTER INFORMATION STATEMENT...

Activation of emergency management personnel...amateur radio
operators...and storm spotters is not anticipated through
tonight.

44

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 15, 3:03 AM CDTLake Wind AdvisorySHVBowie, Camp, Cass, Franklin, Gregg, Harrison and 9 more15 hr
Mar 15, 4:14 AM CDTSpecial Weather StatementSHVLaSalle46 min

Nearby

Dense Fog Advisories in Texas, 2021Dense Fog Advisories in Arkansas, 2021Dense Fog Advisories in Louisiana, 2021Every dense fog advisory 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; radar from the NEXRAD Level II archive.