Alert archive / Arkansas / Flash Flood Warnings in 2021
Flash Flood Warning 23, NWS Shreveport, LA
NWS Shreveport, LA issued this flash flood warning at Jun 10, 2021, 4:56 PM CDT for Union County, Arkansas. It was in force for 103 min. 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 10, 2021, 4:56 PM CDT (21:56 UTC)
- Expired
- Jun 10, 2021, 6:39 PM CDT
- In force
- 103 min
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Flood severity
- None
County Union County, AR
The radar
The Shreveport radar (KSHV), 173 km from the middle of the area, began a volume at 21:58 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, 9.9 hours before the alert went out and 164 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
- 1585 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 597 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted.
524
WGUS54 KSHV 102156
FFWSHV
ARC139-110100-
/O.NEW.KSHV.FF.W.0023.210610T2156Z-210611T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Shreveport LA
456 PM CDT Thu Jun 10 2021
The National Weather Service in Shreveport has issued a
* Flash Flood Warning for...
Southeastern Union County in south central Arkansas...
* Until 800 PM CDT.
* At 456 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 3 inches of rain
have fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flash flooding include...
Huttig, Lapile, Felsenthal and New London.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3301 9227 3317 9237 3322 9221 3322 9222
3320 9221 3321 9218 3319 9218 3317 9216
3315 9217 3317 9215 3315 9211 3311 9212
3310 9214 3307 9213 3307 9211 3303 9211
3303 9208 3301 9207
FLASH FLOOD...RADAR INDICATED
$$
091 follow-up statement
153
WGUS74 KSHV 102339
FFSSHV
Flash Flood Statement
National Weather Service Shreveport LA
639 PM CDT Thu Jun 10 2021
ARC139-102349-
/O.CAN.KSHV.FF.W.0023.000000T0000Z-210611T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Union AR-
639 PM CDT Thu Jun 10 2021
...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN UNION COUNTY...
Flood waters have receded. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 3301 9227 3317 9237 3322 9221 3322 9222
3320 9221 3321 9218 3319 9218 3317 9216
3315 9217 3317 9215 3315 9211 3311 9212
3310 9214 3307 9213 3307 9211 3303 9211
3303 9208 3301 9207
$$
09Nearby
Flash Flood Warnings in Arkansas, 2021Every flash flood warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.