Alert archive / Arkansas / Flash Flood Warnings in 2018
Flash Flood Warning 4, NWS Memphis, TN
NWS Memphis, TN issued this flash flood warning at Feb 24, 2018, 5:40 PM CST for Lee County, St. Francis County, Arkansas; DeSoto County, Mississippi. It was in force for 5 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
- Feb 24, 2018, 5:40 PM CST (23:40 UTC)
- Expired
- Feb 24, 2018, 10:45 PM CST
- In force
- 5 hr
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Lee County, AR, St. Francis County, AR, DeSoto County, MS
The radar
The Memphis radar (KNQA), 84 km from the middle of the area, began a volume at 23:39 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
Little Rock, AR (KBYH), launched 12:00Z, 11.7 hours before the alert went out and 58 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
- 42 J/kg
- Mixed-layer CIN
- -186 J/kg
- Mixed-layer LCL
- 568 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 176 m²/s²
- 0-3 km storm-relative helicity
- 196 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
273
WGUS54 KMEG 242340
FFWMEG
ARC077-123-MSC033-250245-
/O.NEW.KMEG.FF.W.0004.180224T2340Z-180225T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
540 PM CST SAT FEB 24 2018
The National Weather Service in Memphis has issued a
* Flash Flood Warning for...
Lee County in eastern Arkansas...
St. Francis County in eastern Arkansas...
Western DeSoto County in northwestern Mississippi...
* Until 845 PM CST
* At 540 PM CST...Doppler Radar estimates 1 to 2 inches of rain has
occurred over the past 6 hours. Showers and thunderstorms will
produce an additional 1 to 3 inches of rain over the next 3 hours.
* Some locations that will experience flooding include...
Forrest City, Marianna, Hughes, Madison, Palestine, Caldwell, Colt,
Wheatley, Widener, Moro, Rondo, Aubrey, Haynes, Jennette, Garret
Grove, Brickeys, New Salem, New Home, Lagrange and Cody.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Please report flooding to your local law enforcement agency when you
can do so safely.
&&
LAT...LON 3500 9115 3500 9105 3515 9104 3515 9040
3501 9040 3496 9027 3500 9041 3488 9041
3493 9024 3486 9019 3483 9042 3489 9048
3474 9045 3480 9053 3473 9057 3469 9046
3463 9051 3470 9055 3464 9058 3465 9105
$$1 follow-up statement
948
WGUS54 KMEG 250230
FFWMEG
ARC077-123-MSC033-250445-
/O.EXT.KMEG.FF.W.0004.000000T0000Z-180225T0445Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
830 PM CST SAT FEB 24 2018
The National Weather Service in Memphis has extended the
* Flash Flood Warning for...
Lee County in eastern Arkansas...
St. Francis County in eastern Arkansas...
Western DeSoto County in northwestern Mississippi...
* Until 1045 PM CST
* At 829 PM CST...Doppler Radar estimates 1 to 3 inches of rain has
occurred in the past 4 hours. Showers and thunderstorms will
produce an additional inch of rain over the next 2 hours.
* Some locations that will experience flooding include...
Forrest City, Marianna, Hughes, Madison, Palestine, Caldwell, Colt,
Wheatley, Widener, Moro, Rondo, Aubrey, Haynes, Jennette, Garret
Grove, Brickeys, New Salem, New Home, Lagrange and Cody.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 3500 9115 3500 9105 3515 9104 3515 9040
3501 9040 3496 9027 3500 9041 3488 9041
3493 9024 3486 9019 3483 9042 3489 9048
3474 9045 3480 9053 3473 9057 3469 9046
3463 9051 3470 9055 3464 9058 3465 9105
$$The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 24, 9:26 AM CST | Dense Fog Advisory | MEG | Clay, Greene, Lawrence, Randolph | 4 hr |
| Feb 24, 1:32 PM CST | Flash Flood Warning | MEG | Clay, Greene, Lawrence, Randolph | 6 hr |
| Feb 24, 4:28 PM CST | Flash Flood Warning | MEG | Craighead, Cross, Poinsett | 4 hr |
| Feb 24, 4:33 PM CST | Severe Thunderstorm Warning | MEG | Craighead, Greene, Lawrence, Randolph | 42 min |
| Feb 24, 4:51 PM CST | Severe Thunderstorm Warning | MEG | Clay, Randolph | 39 min |
| Feb 24, 5:02 PM CST | Severe Thunderstorm Warning | MEG | Craighead, Poinsett | 43 min |
| Feb 24, 5:05 PM CST | Severe Thunderstorm Warning | MEG | Clay, Greene, Lawrence, Randolph | 40 min |
| Feb 24, 5:06 PM CST | Tornado Warning | MEG | Clay, Randolph | 24 min |
| Feb 24, 5:14 PM CST | Tornado Warning | MEG | Clay, Greene, Randolph | 46 min |
| Feb 24, 5:15 PM CST | Tornado Warning | MEG | Clay, Craighead, Greene, Lawrence | 24 min |
| Feb 24, 5:18 PM CST | Severe Thunderstorm Warning | MEG | Crittenden, Cross, Poinsett | 42 min |
| Feb 24, 5:29 PM CST | Tornado Warning | MEG | Craighead, Mississippi, Poinsett | 10 min |
| Feb 24, 5:34 PM CST | Severe Thunderstorm Warning | MEG | Crittenden, Cross, Lee, St. Francis | 41 min |
| Feb 24, 5:42 PM CST | Flash Flood Warning | MEG | Mississippi | 6 hr |
| Feb 24, 5:42 PM CST | Severe Thunderstorm Warning | MEG | Clay, Craighead, Crittenden, Greene, Mississippi, Poinsett | 48 min |
| Feb 24, 5:56 PM CST | Tornado Warning | MEG | Clay | 23 min |
Nearby
Flash Flood Warnings in Arkansas, 2018Flash Flood Warnings in Mississippi, 2018Every flash flood warning in 2018
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.