Alert archive / Arkansas / Flash Flood Warnings in 2021
Flash Flood Warning 18, NWS Shreveport, LA
NWS Shreveport, LA issued this flash flood warning at Jun 8, 2021, 7:30 AM CDT for Sevier County, Arkansas; McCurtain County, Oklahoma. It was in force for 4 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 8, 2021, 7:30 AM CDT (12:30 UTC)
- Expired
- Jun 8, 2021, 11:30 AM CDT
- In force
- 4 hr
- Issued by
- NWS Shreveport, LA
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
Counties Sevier County, AR, McCurtain County, OK
The radar
The Western Arkansas radar (KSRX), 154 km from the middle of the area, began a volume at 12:35 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 8, 9:22 AM CDT | FLASH FLOOD | 5 Nne Haworth, OK | GOODWATER ROAD FLOODED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Shreveport, LA (KSHV), launched 12:00Z, 0.5 hours before the alert went out and 196 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
- 1621 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 580 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 218 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.1
The text
As transmitted.
001
WGUS54 KSHV 081230
FFWSHV
ARC133-OKC089-081630-
/O.NEW.KSHV.FF.W.0018.210608T1230Z-210608T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Shreveport LA
730 AM CDT Tue Jun 8 2021
The National Weather Service in Shreveport has issued a
* Flash Flood Warning for...
Northwestern Sevier County in southwestern Arkansas...
Southeastern McCurtain County in southeastern Oklahoma...
* Until 1130 AM CDT.
* At 730 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Life threatening flash flooding. Thunderstorms
producing flash flooding.
SOURCE...Doppler radar.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets and underpasses.
* Some locations that will experience flash flooding include...
De Queen, Idabel, Broken Bow, Gillham, Haworth, Garvin, Eagletown,
Goodwater, Hochatown, West Line, Cerrogordo, Holly Creek,
Shinewell, West Otis, Bokhoma, Moon, America and Farmers Hill.
Additional rainfall amounts of 1 to 3 inches are possible in the
warned area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Dangerous flash flooding is occurring or is imminent. Do not attempt
to travel unless you are fleeing flood waters. If you are in an area
subject to flooding, move to higher ground now.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets, and underpasses
as well as other drainage areas and low lying spots.
&&
LAT...LON 3395 9516 3397 9481 3429 9485 3438 9446
3419 9447 3419 9431 3397 9430 3394 9448
3375 9448 3385 9497 3386 9497 3386 9504
3390 9506 3390 9508 3388 9508 3389 9510
3392 9508 3390 9512 3393 9512 3394 9516
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
04The office that day
Everything else NWS Shreveport, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 8:47 PM CDT | River Flood Warning | SHV | Little River, Sevier | 4 days |
| Jun 7, 8:47 PM CDT | River Flood Warning | SHV | Howard, Little River, Sevier | 5 days |
| Jun 8, 5:13 AM CDT | River Flood Warning | SHV | Little River | 52 hr |
| Jun 8, 5:33 AM CDT | Areal Flood Advisory | SHV | Sevier | 3 hr |
| Jun 8, 9:40 AM CDT | Flash Flood Warning | SHV | Howard, Little River, Sevier | 3 hr |
| Jun 8, 11:00 AM CDT | Areal Flood Warning | SHV | Sevier | 6 hr |
| Jun 8, 11:27 AM CDT | Special Weather Statement | SHV | Hempstead, Nevada | 48 min |
| Jun 8, 11:48 AM CDT | Flash Flood Warning | SHV | Hempstead, Nevada | 2 hr |
| Jun 8, 12:31 PM CDT | Special Weather Statement | SHV | Nevada | 44 min |
| Jun 8, 4:59 PM CDT | Areal Flood Advisory | SHV | Nevada | 2 hr |
| Jun 7, 8:44 PM CDT | River Flood Warning | SHV | McCurtain | 13 hr |
| Jun 8, 3:29 AM CDT | Areal Flood Advisory | SHV | McCurtain | 2 hr |
| Jun 8, 5:48 AM CDT | Flash Flood Warning | SHV | McCurtain | 5 hr |
| Jun 8, 6:09 AM CDT | Special Weather Statement | SHV | McCurtain | 36 min |
| Jun 8, 8:57 AM CDT | Flash Flood Warning | SHV | McCurtain | 2 hr |
| Jun 8, 12:02 PM CDT | River Flood Warning | SHV | McCurtain | 8 hr |
Nearby
Flash Flood Warnings in Arkansas, 2021Flash Flood Warnings in Oklahoma, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.