Alert archive / Arkansas / Flash Flood Warnings in 2017
Flash Flood Warning 65, NWS Memphis, TN
NWS Memphis, TN issued this flash flood warning at Aug 20, 2017, 6:15 PM CDT for Lee County, St. Francis County, Arkansas. It was in force for 2 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
- Aug 20, 2017, 6:15 PM CDT (23:15 UTC)
- Expired
- Aug 20, 2017, 8:15 PM CDT
- In force
- 2 hr
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Lee County, AR, St. Francis County, AR
The radar
The Little Rock radar (KLZK), 108 km from the middle of the area, began a volume at 23:15 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, 11.3 hours before the alert went out and 104 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
- 2666 J/kg
- Mixed-layer CIN
- -36 J/kg
- Mixed-layer LCL
- 1116 m above ground
- 0-6 km bulk shear
- 8 kt
- 0-1 km storm-relative helicity
- -21 m²/s²
- 0-3 km storm-relative helicity
- -22 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
053
WGUS54 KMEG 202315
FFWMEG
ARC077-123-210115-
/O.NEW.KMEG.FF.W.0065.170820T2315Z-170821T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
615 PM CDT SUN AUG 20 2017
The National Weather Service in Memphis has issued a
* Flash Flood Warning for...
Northwestern Lee County in eastern Arkansas...
Southwestern St. Francis County in eastern Arkansas...
* Until 815 PM CDT
* At 615 PM CDT...Doppler Radar estimates 2 to 2.5 inches of rain
has occurred over the past hour. Showers and thunderstorms will
produce an additional 1 to 2 inches of rain over the next 2 hours.
* Some locations that will experience flooding include...
Wheatley, New Salem, Goodwin, Four Gums, Blossom and Posey.
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 3505 9104 3505 9096
3486 9097 3486 9110 3487 9110 3487 9111
3491 9112 3491 9115
$$1 follow-up statement
469
WGUS74 KMEG 210004
FFSMEG
Flash Flood Statement
National Weather Service Memphis TN
704 PM CDT SUN AUG 20 2017
ARC077-123-210014-
/O.CAN.KMEG.FF.W.0065.000000T0000Z-170821T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lee AR-St. Francis AR-
704 PM CDT SUN AUG 20 2017
...THE FLASH FLOOD WARNING FOR NORTHWESTERN LEE AND SOUTHWESTERN ST.
FRANCIS COUNTIES IS CANCELLED...
The heavy rain has ended. Flood waters have receded. Flooding is no
longer expected to pose a threat. Please continue to heed any
remaining road closures.
LAT...LON 3500 9115 3500 9105 3505 9104 3505 9096
3486 9097 3486 9110 3487 9110 3487 9111
3491 9112 3491 9115
$$The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 20, 3:21 AM CDT | Heat Advisory | MEG | Craighead, Crittenden, Cross, Lee, Phillips, Poinsett and 1 more | 15 hr |
| Aug 20, 11:54 AM CDT | Special Weather Statement | MEG | Greene | 36 min |
| Aug 20, 1:04 PM CDT | Special Weather Statement | MEG | Mississippi | 26 min |
| Aug 20, 1:46 PM CDT | Areal Flood Advisory | MEG | Phillips | 59 min |
| Aug 20, 1:59 PM CDT | Areal Flood Advisory | MEG | Craighead, Lawrence | 61 min |
| Aug 20, 2:02 PM CDT | Special Weather Statement | MEG | Clay | 28 min |
| Aug 20, 6:07 PM CDT | Special Weather Statement | MEG | Lee | 23 min |
Nearby
Flash Flood Warnings in Arkansas, 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.