Alert archive / Mississippi / Flash Flood Warnings in 2021
Flash Flood Warning 11, NWS Memphis, TN
NWS Memphis, TN issued this flash flood warning at Mar 17, 2021, 4:52 PM CDT for 4 counties in Mississippi. 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
- Mar 17, 2021, 4:52 PM CDT (21:52 UTC)
- Expired
- Mar 17, 2021, 8:45 PM CDT
- In force
- 4 hr
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Itawamba County, MS, Lee County, MS, Prentiss County, MS, Tishomingo County, MS
The radar
The Columbus AFB radar (KGWX), 66 km from the middle of the area, began a volume at 21:51 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 |
|---|---|---|---|
| Mar 17, 4:59 PM CDT | FLASH FLOOD | 1 N Belmont, MS | FLOODING ON VALLEY ROAD AND OLD HIGHWAY 25. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Little Rock, AR (KLZK), launched 12:00Z, 9.9 hours before the alert went out and 159 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
- 18 J/kg
- Mixed-layer CIN
- -262 J/kg
- Mixed-layer LCL
- 1466 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 217 m²/s²
- 0-3 km storm-relative helicity
- 186 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted.
080
WGUS54 KMEG 172152
FFWMEG
MSC057-081-117-141-180145-
/O.NEW.KMEG.FF.W.0011.210317T2152Z-210318T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
452 PM CDT Wed Mar 17 2021
The National Weather Service in Memphis has issued a
* Flash Flood Warning for...
Northern Itawamba County in northeastern Mississippi...
East Central Lee County in northeastern Mississippi...
Southeastern Prentiss County in northeastern Mississippi...
Southern Tishomingo County in northeastern Mississippi...
* Until 845 PM CDT.
* At 452 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flash flooding include...
Tishomingo State Park, Belmont, Mantachie, Sandy Springs,
Fairview, Golden, Moores Mill, Kirkville, Dennis, Neil, Unity,
Eggville and Bloody Springs.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.
&&
LAT...LON 3440 8862 3453 8838 3464 8813 3463 8813
3461 8813 3459 8814 3458 8814 3450 8815
3446 8816 3444 8816 3442 8816 3440 8816
3438 8817 3429 8862
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 2 HOURS
$$
TLSJr1 follow-up statement
119
WGUS74 KMEG 172203
FFSMEG
Flash Flood Statement
National Weather Service Memphis TN
503 PM CDT Wed Mar 17 2021
MSC057-081-117-141-180145-
/O.CON.KMEG.FF.W.0011.000000T0000Z-210318T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Itawamba MS-Lee MS-Prentiss MS-Tishomingo MS-
503 PM CDT Wed Mar 17 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 PM CDT THIS
EVENING FOR NORTHERN ITAWAMBA, EAST CENTRAL LEE, SOUTHEASTERN
PRENTISS AND SOUTHERN TISHOMINGO COUNTIES...
At 503 PM CDT, the public reported thunderstorms producing heavy
rain across the warned area and flooding near Belmont. Between 1 and
2 inches of rain have fallen. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Public.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
Some locations that will experience flash flooding include...
Tishomingo State Park, Belmont, Mantachie, Sandy Springs,
Fairview, Golden, Moores Mill, Kirkville, Dennis, Neil, Unity,
Eggville and Bloody Springs.
Additional rainfall amounts of 1 to 2 inches are possible in the
warned area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.
&&
LAT...LON 3440 8862 3453 8838 3464 8813 3463 8813
3461 8813 3459 8814 3458 8814 3450 8815
3446 8816 3444 8816 3442 8816 3440 8816
3438 8817 3429 8862
FLASH FLOOD...OBSERVED
EXPECTED RAINFALL...1-2 INCHES IN 2 HOURS
$$
TLSJrThe office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 3:38 AM CDT | Severe Thunderstorm Warning | MEG | Calhoun, Lafayette, Pontotoc, Yalobusha | 37 min |
| Mar 17, 5:24 AM CDT | Severe Thunderstorm Warning | MEG | Panola, Tate | 20 min |
| Mar 17, 6:35 AM CDT | Severe Thunderstorm Warning | MEG | Coahoma, Panola, Quitman, Tallahatchie, Tunica | 40 min |
| Mar 17, 6:49 AM CDT | Severe Thunderstorm Warning | MEG | Marshall | 14 min |
| Mar 17, 7:12 AM CDT | Severe Thunderstorm Warning | MEG | Lafayette, Marshall, Panola, Quitman, Tallahatchie, Tate and 1 more | 48 min |
| Mar 17, 8:24 AM CDT | Areal Flood Advisory | MEG | Benton, DeSoto, Marshall, Tate, Tunica | 2 hr |
| Mar 17, 9:04 AM CDT | Flash Flood Warning | MEG | Alcorn, Benton, DeSoto, Marshall, Tate, Tippah | 3 hr |
| Mar 17, 10:29 AM CDT | Flash Flood Warning | MEG | Alcorn, Prentiss, Tishomingo | 3 hr |
| Mar 17, 3:18 PM CDT | Tornado Warning | MEG | Itawamba, Prentiss, Tishomingo | 27 min |
| Mar 17, 4:17 PM CDT | Severe Thunderstorm Warning | MEG | Calhoun, Lafayette, Pontotoc, Union | 28 min |
| Mar 17, 4:28 PM CDT | Areal Flood Advisory | MEG | Itawamba, Prentiss, Tishomingo | 5 hr |
| Mar 17, 4:43 PM CDT | Severe Thunderstorm Warning | MEG | Benton, Lafayette, Marshall, Union | 32 min |
| Mar 17, 4:56 PM CDT | Severe Thunderstorm Warning | MEG | Chickasaw, Itawamba, Lee, Pontotoc, Prentiss, Union | 49 min |
| Mar 17, 4:58 PM CDT | Severe Thunderstorm Warning | MEG | Calhoun, Chickasaw, Pontotoc | 20 min |
| Mar 17, 5:45 PM CDT | Severe Thunderstorm Warning | MEG | Chickasaw, Itawamba, Lee, Monroe | 45 min |
| Mar 17, 5:55 PM CDT | Flash Flood Warning | MEG | Calhoun, Chickasaw | 4 hr |
| Mar 17, 5:55 PM CDT | Tornado Warning | MEG | Chickasaw, Itawamba, Lee, Monroe | 35 min |
| Mar 17, 6:28 PM CDT | Severe Thunderstorm Warning | MEG | Itawamba, Monroe | 47 min |
| Mar 17, 6:33 PM CDT | Special Weather Statement | MEG | Lafayette, Marshall, Yalobusha | 42 min |
Nearby
Flash Flood Warnings in Mississippi, 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.