Alert archive / Louisiana / Flash Flood Warnings in 2022
Flash Flood Warning 24, NWS Shreveport, LA
NWS Shreveport, LA issued this flash flood warning at Aug 22, 2022, 11:36 PM CDT for Bossier Parish, Caddo Parish, De Soto Parish, Louisiana. 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 22, 2022, 11:36 PM CDT (04:36 UTC)
- Expired
- Aug 23, 2022, 2:45 AM CDT
- In force
- 3 hr
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Bossier Parish, LA, Caddo Parish, LA, De Soto Parish, LA
The radar
The Shreveport radar (KSHV), 9 km from the middle of the area, began a volume at 04:37 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
Lake Charles Mun, LA (KLCH), launched 00:00Z, 4.6 hours before the alert went out and 263 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
- 1715 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 995 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 22, 10:34 PM CDT, 1 hour 2 minutes earlier.
Area forecast discussion, Aug 22, 10:34 PM CDT, 1 hour 2 minutes before
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</html>Hazardous weather outlook, Aug 22, 6:40 AM CDT, 16 hours 56 minutes before
Hazardous Weather Outlook National Weather Service Shreveport LA 640 AM CDT Mon Aug 22 2022 ARZ070>073-LAZ001>006-010>014-017>020-022-TXZ096-097-108>112-124>126- 136>138-149>153-165>167-231100- Miller-Lafayette-Columbia-Union-Caddo-Bossier-Webster-Claiborne- Lincoln-De Soto-Red River-Bienville-Jackson-Ouachita-Sabine- Natchitoches-Winn-Grant-La Salle-Bowie-Franklin-Titus-Camp-Morris- Cass-Wood-Upshur-Marion-Smith-Gregg-Harrison-Cherokee-Rusk-Panola- Nacogdoches-Shelby-Angelina-San Augustine- 640 AM CDT Mon Aug 22 2022 ...FLOOD WATCH IN EFFECT THROUGH TUESDAY EVENING... This Hazardous Weather Outlook is for south central Arkansas, southwest Arkansas, north central Louisiana, northwest Louisiana, east Texas and northeast Texas. .DAY ONE...Today and tonight. A Flood Watch is in effect through 7 PM CDT Tuesday evening. Widespread showers and thunderstorms will continue across the area today and tonight. The rain will likely persist through the overnight hours. Rainfall may be heavy at times, which could lead to flash flooding. Rainfall amounts of 2 to 3 inches are possible through tonight. In addition, a couple of severe storms will be possible across East Texas and Louisiana south of Interstate 20, mainly this afternoon through early this evening. Damaging winds will be the primary threat, but a brief tornado cannot be ruled out. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. A Flood Watch will remain in effect through 7 PM CDT Tuesday evening. Widespread showers and thunderstorms are likely across the entire Four State Region for much of the week as a series of upper disturbances move across the area. Through Wednesday evening, areas south of a line from Mount Vernon to El Dorado could see total rainfall amounts of between 4 to 6 inches. The highest rainfall totals are expected along much of the Interstate 20 corridor where locally higher amounts could be in excess of 8 inches. Scattered showers and thunderstorms will remain possible Thursday through Sunday. However, a threat for additional widespread heavy rain is not expected. .SPOTTER INFORMATION STATEMENT... Activation of emergency management personnel, amateur radio operators, and storm spotters will likely be needed today or tonight. LAZ021-231100- Caldwell- 640 AM CDT Mon Aug 22 2022 This Hazardous Weather Outlook is for north central Louisiana. .DAY ONE...Today and tonight. A Flood Watch is in effect through 7 PM CDT Tuesday evening. Widespread showers and thunderstorms will continue across the area today and tonight. The rain will likely persist through the overnight hours. Rainfall may be heavy at times, which could lead to flash flooding. Rainfall amounts of 2 to 3 inches are possible through tonight. In addition, a couple of severe storms will be possible across East Texas and Louisiana south of Interstate 20, mainly this afternoon through early this evening. Damaging winds will be the primary threat, but a brief tornado cannot be ruled out. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. A Flood Watch will remain in effect through 7 PM CDT Tuesday evening. Widespread showers and thunderstorms are likely across the entire Four State Region for much of the week as a series of upper disturbances move across the area. Through Wednesday evening, areas south of a line from Mount Vernon to El Dorado could see total rainfall amounts of between 4 to 6 inches. The highest rainfall totals are expected along much of the Interstate 20 corridor where locally higher amounts could be in excess of 8 inches. Scattered showers and thunderstorms will remain possible Thursday through Sunday. However, a threat for additional widespread heavy rain is not expected. .SPOTTER INFORMATION STATEMENT... Activation of emergency management personnel, amateur radio operators, and storm spotters will likely be needed today or tonight. ARZ050-051-059>061-OKZ077-231100- Sevier-Howard-Little River-Hempstead-Nevada-McCurtain- 640 AM CDT Mon Aug 22 2022 This Hazardous Weather Outlook is for southwest Arkansas and southeast Oklahoma. .DAY ONE...Today and tonight. Widespread showers and thunderstorms will continue across the area today and tonight. The rain will likely persist through the overnight hours. Rainfall may be heavy at times, which could lead to flash flooding. Rainfall amounts of 1 to 2 inches are possible through tonight. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Widespread showers and thunderstorms are likely across the entire Four State Region through Wednesday. Rain chances will begin to diminish from northwest to southeast beginning Thursday and continuing into the weekend. However, chances for scattered thunderstorms will increase on Sunday. .SPOTTER INFORMATION STATEMENT... Activation of emergency management personnel, amateur radio operators, and storm spotters will not be needed through tonight. 09
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 8:44 PM CDT | Areal Flood Advisory | SHV | Nacogdoches, Panola, Rusk | 2 hr |
| Aug 22, 9:34 PM CDT | Areal Flood Advisory | SHV | Panola | 116 min |
| Aug 22, 9:41 PM CDT | Areal Flood Advisory | SHV | Angelina | 2 hr |
| Aug 22, 10:25 PM CDT | Flash Flood Warning | SHV | Angelina, San Augustine | 2 hr |
| Aug 23, 1:40 AM CDT | Areal Flood Advisory | SHV | Sabine, San Augustine, Shelby | 3 hr |
| Aug 22, 11:06 PM CDT | Areal Flood Advisory | SHV | Bossier, Caddo, De Soto | 114 min |
| Aug 23, 9:59 AM CDT | Areal Flood Advisory | SHV | Bienville, Caldwell, Jackson, Lincoln, Natchitoches, Ouachita and 2 more | 3 hr |
| Aug 23, 10:29 AM CDT | River Flood Warning | SHV | Webster | 72 hr |
| Aug 23, 4:55 PM CDT | Special Weather Statement | SHV | LaSalle | 65 min |
| Aug 23, 5:01 PM CDT | Special Weather Statement | SHV | Winn | 44 min |
Nearby
Flash Flood Warnings in Louisiana, 2022Every 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.