Alert archive / Louisiana / Flash Flood Warnings in 2017
Flash Flood Warning 21, NWS Shreveport, LA
NWS Shreveport, LA issued this flash flood warning at Jun 24, 2017, 12:34 AM CDT for Caddo Parish, Louisiana; Harrison County, Texas. 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 outline as issued.
The facts
- Issued
- Jun 24, 2017, 12:34 AM CDT (05:34 UTC)
- Expired
- Jun 24, 2017, 3:30 AM CDT
- In force
- 3 hr
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Caddo Parish, LA, Harrison County, TX
The radar
The Shreveport radar (KSHV), 19 km from the middle of the area, began a volume at 05:34 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 (KBAD), launched 00:00Z, 5.6 hours before the alert went out and 26 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 0 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
176 WGUS54 KSHV 240534 FFWSHV LAC017-TXC203-240830- /O.NEW.KSHV.FF.W.0021.170624T0534Z-170624T0830Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Shreveport LA 1234 AM CDT SAT JUN 24 2017 The National Weather Service in Shreveport has issued a * Flash Flood Warning for... West central Caddo Parish in northwestern Louisiana... Southeastern Harrison County in northeastern Texas... * Until 330 AM CDT * At 1233 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across Eastern Harrison County and Western Caddo Parish between Scottsville and Greenwood. Widespread rainfall amounts of two to three inches have fallen within the last hour, with very heavy rainfall with rates of two to three inches per hour continuing to fall over the warned area, especially near Waskom and just north of Greenwood. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Shreveport, Greenwood, Waskom, Elysian Fields, Jonesville and Bethany. Additional rainfall amounts of two to three inches are possible in the warned area during the next couple of hours. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. Please report flooding to your local law enforcement agency when you can do so safely. A Flash Flood Warning means that flooding is imminent or occurring. If you are in the warned area move to higher ground immediately. Residents living along streams and creeks should take immediate precautions to protect life and property. && LAT...LON 3262 9391 3242 9390 3236 9422 3255 9419 $$ 15
The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 8:43 PM CDT | Special Weather Statement | SHV | Ouachita | 47 min |
| Jun 23, 9:22 PM CDT | Areal Flood Advisory | SHV | Union | 113 min |
| Jun 24, 12:15 AM CDT | Special Weather Statement | SHV | Caddo | 45 min |
| Jun 24, 2:40 AM CDT | Areal Flood Advisory | SHV | De Soto, Sabine | 2 hr |
| Jun 23, 9:54 PM CDT | Severe Thunderstorm Warning | SHV | Franklin, Red River, Titus | 39 min |
| Jun 23, 10:05 PM CDT | Special Weather Statement | SHV | Bowie | 40 min |
| Jun 24, 12:54 AM CDT | Special Weather Statement | SHV | Panola | 51 min |
Nearby
Flash Flood Warnings in Louisiana, 2017Flash Flood Warnings in Texas, 2017Every flash flood warning in 2017
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.