Alert archive / Texas / Mesoscale Discussions in 2020

Mesoscale Discussion 473

April 24, 202012 parishes in Louisiana; 14 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 24, 2020, 7:43 PM CDT for 12 parishes in Louisiana; 14 counties in Texas. It was in force for 62 min.

The area

The outline as issued.

The facts

Issued: Apr 24, 2020, 7:43 PM CDT (00:43 UTC)
Expired: Apr 24, 2020, 8:45 PM CDT
In force: 62 min
Issued by: the Storm Prediction Center
Chance of a watch: 60%

All 26 counties

Bienville Parish, LA, Caldwell Parish, LA, Claiborne Parish, LA, Grant Parish, LA, Jackson Parish, LA, Lincoln Parish, LA, Natchitoches Parish, LA, Ouachita Parish, LA, Red River Parish, LA, Sabine Parish, LA, Union Parish, LA, Winn Parish, LA, Angelina County, TX, Brazos County, TX, Grimes County, TX, Houston County, TX, Leon County, TX, Madison County, TX, Polk County, TX, Robertson County, TX, Sabine County, TX, San Augustine County, TX, San Jacinto County, TX, Trinity County, TX, Tyler County, TX, Walker County, TX

The radar

The Shreveport radar (KSHV), 79 km from the middle of the area, began a volume at 00:47 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

Severe Thunderstorm Watch 147Apr 24, 8:30 PM CDT

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 24, 7:19 PM CDT	Mesoscale Discussion	SPC	Bossier, Caddo, Webster	101 min
Apr 24, 8:31 PM CDT	Severe Thunderstorm Watch	SPC	Bienville, Caldwell, Claiborne, East Carroll, Franklin, Grant and 13 more	5 hr
Apr 24, 9:26 PM CDT	Mesoscale Discussion	SPC	Bossier, Caddo, De Soto, Red River, Webster	94 min
Apr 24, 10:17 PM CDT	Mesoscale Discussion	SPC	Bienville, Caldwell, Claiborne, East Carroll, Franklin, Grant and 13 more	118 min

Nearby

Mesoscale Discussions in Texas, 2020 Mesoscale Discussions in Louisiana, 2020 Every mesoscale discussion in 2020

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.