Alert archive / Mississippi / Flash Flood Warnings in 2018
Flash Flood Warning 13, NWS Memphis, TN
NWS Memphis, TN issued this flash flood warning at Feb 24, 2018, 9:32 PM CST for 4 counties in Mississippi. It was in force for 4 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, 9:32 PM CST (03:32 UTC)
- Expired
- Feb 25, 2018, 1:30 AM CST
- In force
- 4 hr
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Lafayette County, MS, Panola County, MS, Tallahatchie County, MS, Yalobusha County, MS
The radar
The Memphis radar (KNQA), 156 km from the middle of the area, began a volume at 03:31 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
Jackson, MS (KJAN), launched 00:00Z, 3.5 hours before the alert went out and 181 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
- 170 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 1404 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 177 m²/s²
- 0-3 km storm-relative helicity
- 246 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.7
The text
As transmitted.
033
WGUS54 KMEG 250332
FFWMEG
MSC071-107-135-161-250730-
/O.NEW.KMEG.FF.W.0013.180225T0332Z-180225T0730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
932 PM CST SAT FEB 24 2018
The National Weather Service in Memphis has issued a
* Flash Flood Warning for...
Lafayette County in northwestern Mississippi...
Yalobusha County in northwestern Mississippi...
Tallahatchie County in northwestern Mississippi...
Panola County in northwestern Mississippi...
* Until 130 AM CST
* At 931 PM CST...Doppler Radar estimates an inch of rain has
occurred over the past hour. Showers and thunderstorms will
produce an additional 1 to 3 inches of rain over the next 4
hours.
* Some locations that will experience flooding include...
Oxford, Batesville, Water Valley, Charleston, George Payne State
Park, Holly Springs National Forest, John W Kyle State Park,
Tutwiler, Sardis, Como, Coffeeville, Crenshaw, Crowder, Webb,
Sumner, Pope, Enid, Paynes, Cambridge and Pleasant Grove.
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 3370 9030 3375 9030 3377 9018 3378 9017
3381 9019 3381 9045 3407 9045 3408 9014
3454 9020 3456 8948 3450 8925 3416 8925
3416 8951 3387 8951 3390 8992 3382 8993
3381 9013 3372 9014 3374 9025 3369 9028
$$The office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 24, 6:13 PM CST | Flash Flood Warning | MEG | DeSoto | 6 hr |
| Feb 24, 6:49 PM CST | Flash Flood Warning | MEG | Coahoma, Quitman, Tate, Tunica | 6 hr |
| Feb 24, 7:30 PM CST | Special Weather Statement | MEG | DeSoto | 45 min |
| Feb 24, 7:44 PM CST | Special Weather Statement | MEG | Panola, Quitman, Tate | 46 min |
| Feb 24, 9:12 PM CST | Flash Flood Warning | MEG | Benton, Marshall, Tate, Tippah | 3 hr |
| Feb 24, 9:36 PM CST | Tornado Warning | MEG | Alcorn, Tippah | 39 min |
| Feb 24, 10:00 PM CST | Tornado Warning | MEG | Alcorn, Prentiss, Tishomingo | 45 min |
| Feb 24, 10:04 PM CST | Tornado Warning | MEG | Lee, Prentiss, Union | 41 min |
| Feb 24, 10:05 PM CST | Tornado Warning | MEG | Lee, Prentiss, Tippah, Union | 40 min |
| Feb 24, 10:24 PM CST | Flash Flood Warning | MEG | Alcorn, Calhoun, Lee, Pontotoc, Prentiss, Tishomingo and 1 more | 3 hr |
| Feb 24, 10:31 PM CST | Tornado Warning | MEG | Alcorn, Prentiss, Tishomingo | 15 min |
| Feb 24, 11:01 PM CST | Severe Thunderstorm Warning | MEG | Itawamba, Lee, Prentiss, Tishomingo | 11 min |
Nearby
Flash 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.