Alert archive / Mississippi / Flash Flood Warnings in 2021
Flash Flood Warning 14, NWS Memphis, TN
NWS Memphis, TN issued this flash flood warning at Mar 17, 2021, 7:35 PM CDT for Itawamba 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
- Mar 17, 2021, 7:35 PM CDT (00:35 UTC)
- Expired
- Mar 17, 2021, 9:51 PM CDT
- In force
- 2 hr
- Issued by
- NWS Memphis, TN
- Area
- Storm-based polygon
- Flood severity
- None
County Itawamba County, MS
The radar
The Columbus AFB radar (KGWX), 38 km from the middle of the area, began a volume at 00:34 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 (KLZK), launched 00:00Z, 0.6 hours before the alert went out and 168 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
- 959 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 873 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 133 m²/s²
- 0-3 km storm-relative helicity
- 134 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 4.3
The text
As transmitted.
608
WGUS54 KMEG 180035
FFWMEG
MSC057-180345-
/O.NEW.KMEG.FF.W.0014.210318T0035Z-210318T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Memphis TN
735 PM CDT Wed Mar 17 2021
The National Weather Service in Memphis has issued a
* Flash Flood Warning for...
Southern Itawamba County in northeastern Mississippi...
* Until 1045 PM CDT.
* At 735 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...
Fulton, Tremont, New Salem, Evergreen, Clay, Tilden, Cadamy,
Cardsville, Jacinto, Turon, Abney, Eastman and Bounds Crossroads.
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.
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 3434 8838 3438 8818 3438 8817 3433 8817
3432 8817 3429 8818 3425 8818 3422 8819
3420 8819 3419 8819 3413 8825 3409 8834
3409 8835 3409 8837 3417 8853
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 2 HOURS
$$
TLSJr1 follow-up statement
519
WGUS74 KMEG 180251
FFSMEG
Flash Flood Statement
National Weather Service Memphis TN
951 PM CDT Wed Mar 17 2021
MSC057-180301-
/O.CAN.KMEG.FF.W.0014.000000T0000Z-210318T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Itawamba MS-
951 PM CDT Wed Mar 17 2021
...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHERN ITAWAMBA COUNTY...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 3434 8838 3438 8818 3438 8817 3433 8817
3432 8817 3429 8818 3425 8818 3422 8819
3420 8819 3419 8819 3413 8825 3409 8834
3409 8835 3409 8837 3417 8853
$$
TLSJrThe office that day
Everything else NWS Memphis, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 17, 7:17 PM CDT | Severe Thunderstorm Warning | MEG | Chickasaw, Itawamba, Lee, Monroe, Pontotoc | 43 min |
| Mar 17, 7:38 PM CDT | Tornado Warning | MEG | Itawamba, Lee, Monroe | 10 min |
| Mar 17, 7:44 PM CDT | Severe Thunderstorm Warning | MEG | Itawamba, Lee, Monroe, Prentiss, Tishomingo | 31 min |
| Mar 17, 8:24 PM CDT | Areal Flood Advisory | MEG | Chickasaw, Itawamba, Lee, Monroe, Pontotoc | 89 min |
| Mar 17, 8:45 PM CDT | Flash Flood Warning | MEG | Itawamba, Prentiss, Tishomingo | 69 min |
| Mar 17, 9:10 PM CDT | River Flood Warning | MEG | Lowndes, Monroe | 4 days |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.