Alert archive / Mississippi / Flash Flood Warnings in 2017
Flash Flood Warning 4, NWS Memphis, TN
NWS Memphis, TN issued this flash flood warning at Apr 17, 2017, 1:11 PM CDT for Coahoma County, Quitman County, Mississippi. 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
- Apr 17, 2017, 1:11 PM CDT (18:11 UTC)
- Expired
- Apr 17, 2017, 3:15 PM CDT
- In force
- 2 hr
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Coahoma County, MS, Quitman County, MS
The radar
The Memphis radar (KNQA), 139 km from the middle of the area, began a volume at 18:15 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, 6.2 hours before the alert went out and 84 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
- 604 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 570 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- -26 m²/s²
- Significant tornado parameter
- -0.1
- Supercell composite
- -0.8
The text
As transmitted.
678
WGUS54 KMEG 171811
FFWMEG
MSC027-119-172015-
/O.NEW.KMEG.FF.W.0004.170417T1811Z-170417T2015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
111 PM CDT MON APR 17 2017
The National Weather Service in Memphis has issued a
* Flash Flood Warning for...
Southeastern Coahoma County in northwestern Mississippi...
Quitman County in northwestern Mississippi...
* Until 315 PM CDT
* At 110 PM CDT...Doppler Radar estimates 2 inches of rain has
occurred over the past hour. Showers and thunderstorms will
produce an additional 1 to 3 inches of rain over the next 2 hours.
* Some locations that will experience flooding include...
Clarksdale, Marks, Lambert, Jonestown, Sledge, Belen, Dublin,
Darling, Lyon, Falcon, West Marks, Mattson, Counts, Hopson,
Barksdale, Denton, Riverview, Longstreet, Hinchcliff and Sabino.
LAT...LON 3399 9066 3412 9066 3443 9042 3442 9040
3443 9020 3438 9020 3407 9031 3407 9045
3399 9045
$$1 follow-up statement
964
WGUS74 KMEG 172014
FFSMEG
Flash Flood Statement
National Weather Service Memphis TN
314 PM CDT MON APR 17 2017
MSC027-119-172024-
/O.EXP.KMEG.FF.W.0004.000000T0000Z-170417T2015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Coahoma MS-Quitman MS-
314 PM CDT MON APR 17 2017
...THE FLASH FLOOD WARNING FOR SOUTHEASTERN COAHOMA AND QUITMAN
COUNTIES WILL EXPIRE AT 315 PM CDT...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.
LAT...LON 3399 9066 3412 9066 3443 9042 3442 9040
3443 9020 3438 9020 3407 9031 3407 9045
3399 9045
$$The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 17, 12:33 PM CDT | Special Weather Statement | MEG | DeSoto, Quitman, Tate | 42 min |
| Apr 17, 12:59 PM CDT | Severe Thunderstorm Warning | MEG | Coahoma, Quitman, Tallahatchie | 31 min |
| Apr 17, 1:17 PM CDT | Special Weather Statement | MEG | Panola, Quitman, Tate | 43 min |
| Apr 17, 2:02 PM CDT | Special Weather Statement | MEG | Panola, Quitman | 43 min |
| Apr 17, 2:39 PM CDT | Special Weather Statement | MEG | Yalobusha | 51 min |
| Apr 17, 3:19 PM CDT | Special Weather Statement | MEG | DeSoto | 56 min |
Nearby
Flash Flood Warnings in Mississippi, 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.