Alert archive / Arkansas / Flash Flood Warnings in 2021
Flash Flood Warning 65, NWS Tulsa, OK
NWS Tulsa, OK issued this flash flood warning at Dec 17, 2021, 4:43 PM CST for 4 counties in Arkansas. 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
- Dec 17, 2021, 4:43 PM CST (22:43 UTC)
- Expired
- Dec 17, 2021, 8:45 PM CST
- In force
- 4 hr
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Flood severity
- None
Counties Benton County, AR, Carroll County, AR, Madison County, AR, Washington County, AR
The radar
The Western Arkansas radar (KSRX), 95 km from the middle of the area, began a volume at 22:45 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 |
|---|---|---|---|
| Dec 17, 6:00 PM CST | FLASH FLOOD | 1 Nnw Wedington, AR | SEVERAL ROADS WERE REPORTED FLOODED AROUND WEDINGTON. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 10.7 hours before the alert went out and 91 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
- 1332 m above ground
- 0-6 km bulk shear
- 63 kt
- 0-1 km storm-relative helicity
- 638 m²/s²
- 0-3 km storm-relative helicity
- 713 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
637
WGUS54 KTSA 172243
FFWTSA
ARC007-015-087-143-180245-
/O.NEW.KTSA.FF.W.0065.211217T2243Z-211218T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Tulsa OK
443 PM CST Fri Dec 17 2021
The National Weather Service in Tulsa has issued a
* Flash Flood Warning for...
Southeastern Benton County in northwestern Arkansas...
Western Carroll County in northwestern Arkansas...
Northwestern Madison County in northwestern Arkansas...
Washington County in northwestern Arkansas...
* Until 845 PM CST.
* At 443 PM CST, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 3 inches of rain
have fallen. Additional rainfall amounts of 1 to 2 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Fayetteville... Springdale...
Huntsville... Eureka Springs...
Lowell... Farmington...
Prairie Grove... Elkins...
Tontitown... Bethel Heights...
West Fork... Lincoln...
Greenland... Hindsville...
Wesley... Drake Field Airport...
War Eagle... Hobbs State Park...
Clifty... Withrow Springs State Park...
This includes the following highways...
Interstate 49 between mile markers 51 and 77.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
&&
LAT...LON 3617 9434 3643 9369 3626 9363 3612 9357
3607 9375 3599 9396 3591 9418 3582 9447
3609 9451
FLASH FLOOD...RADAR INDICATED
$$
KAH1 follow-up statement
992
WGUS74 KTSA 180248
FFSTSA
Flash Flood Statement
National Weather Service Tulsa OK
848 PM CST Fri Dec 17 2021
ARC007-015-087-143-180258-
/O.EXP.KTSA.FF.W.0065.000000T0000Z-211218T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Benton AR-Carroll AR-Madison AR-Washington AR-
848 PM CST Fri Dec 17 2021
...FLASH FLOOD WARNING HAS EXPIRED FOR SOUTHEASTERN BENTON, WESTERN
CARROLL, NORTHWESTERN MADISON AND WASHINGTON AR COUNTIES...
The heavy rain has ended. Light to moderate rain will continue for
the next few hours, but flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
A Flood Watch remains in effect until 6 AM CST Saturday for portions
of Arkansas and Oklahoma.
LAT...LON 3617 9434 3643 9369 3626 9363 3612 9357
3607 9375 3599 9396 3591 9418 3582 9447
3609 9451
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 17, 7:57 AM CST | Areal Flood Advisory | TSA | Crawford, Washington | 2 hr |
| Dec 17, 12:18 PM CST | Areal Flood Advisory | TSA | Benton, Carroll, Madison, Washington | 4 hr |
| Dec 17, 2:54 PM CST | Areal Flood Advisory | TSA | Benton, Carroll | 58 min |
| Dec 17, 3:52 PM CST | Flash Flood Warning | TSA | Benton, Carroll | 5 hr |
Nearby
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.