Alert archive / Arkansas / Flash Flood Warnings in 2022

Flash Flood Warning 18, NWS Shreveport, LA

August 9, 2022Bowie County, Texas; 4 counties in Arkansas

NWS Shreveport, LA issued this flash flood warning at Aug 9, 2022, 11:57 AM CDT for Bowie County, Texas; 4 counties in Arkansas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 9, 2022, 11:57 AM CDT (16:57 UTC)
Expired: Aug 9, 2022, 3:00 PM CDT
In force: 3 hr
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Damage threat: Considerable
Flood severity: None

Counties Hempstead County, AR, Lafayette County, AR, Little River County, AR, Miller County, AR, Bowie County, TX

The radar

The Shreveport radar (KSHV), 116 km from the middle of the area, began a volume at 17:00 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, 5.0 hours before the alert went out and 114 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 852 J/kg
Mixed-layer CIN: -107 J/kg
Mixed-layer LCL: 1177 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 46 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood warning 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 flash flood warning went out at Aug 9, 10:10 AM CDT, 1 hour 47 minutes earlier.

Area forecast discussion, Aug 9, 10:10 AM CDT, 1 hour 47 minutes before

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Hazardous weather outlook, Aug 9, 4:18 AM CDT, 7 hours 39 minutes before

Hazardous Weather Outlook
National Weather Service Shreveport LA
418 AM CDT Tue Aug 9 2022

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096-
097-108>112-124>126-136>138-149>153-165>167-101200-
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-
418 AM CDT Tue Aug 9 2022

This Hazardous Weather Outlook is for south central Arkansas,
southwest Arkansas, north central Louisiana, northwest Louisiana,
southeast Oklahoma, east Texas and northeast Texas.

.DAY ONE...Today and tonight.

Scattered to numerous thunderstorms will be possible across the Four
State Region today through tonight. Some of these storms will be
strong, producing strong wind gusts, small hail, cloud to ground
lightning and brief heavy downpours. Any severe weather threat today
will remain isolated but cannot be totally ruled out. Some flooding
could occur with any slow moving convection today through tonight but
this too will remain isolated.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Scattered to numerous showers and thunderstorms will continue across
the entire Four State Region on Wednesday, before becoming more
confined to the I-20 Corridor and points south Thursday into Friday.
There could be some strong thunderstorms with this convection but
severe thunderstorms are not anticipated at this time.

.SPOTTER INFORMATION STATEMENT...

Activation of emergency management personnel, amateur radio
operators, and storm spotters will not be needed through tonight.

13

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 11:20 AM CDT	Areal Flood Advisory	SHV	Bowie	3 hr
Aug 9, 3:30 PM CDT	Special Weather Statement	SHV	Smith	45 min
Aug 8, 7:10 PM CDT	Special Weather Statement	SHV	Webster	50 min
Aug 8, 8:36 PM CDT	Special Weather Statement	SHV	Caddo	39 min
Aug 8, 7:23 PM CDT	Special Weather Statement	SHV	Columbia	52 min

Nearby

Flash Flood Warnings in Arkansas, 2022 Flash Flood Warnings in Texas, 2022 Every flash flood warning in 2022

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.