Alert archive / Mississippi / Flash Flood Warnings in 2021
Flash Flood Warning 103, NWS Jackson, MS
NWS Jackson, MS issued this flash flood warning at Oct 3, 2021, 7:20 PM CDT for Lowndes County, Mississippi. It was in force for 115 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Oct 3, 2021, 7:20 PM CDT (00:20 UTC)
- Expired
- Oct 3, 2021, 9:15 PM CDT
- In force
- 115 min
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
- Flood severity
- None
County Lowndes County, MS
The radar
The Columbus AFB radar (KGWX), 51 km from the middle of the area, began a volume at 00:23 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
Birmingham, AL (KBMX), launched 00:00Z, 0.3 hours before the alert went out and 152 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
- 821 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 626 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 71 m²/s²
- 0-3 km storm-relative helicity
- 84 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.6
The text
As transmitted.
858
WGUS54 KJAN 040020
FFWJAN
MSC087-040215-
/O.NEW.KJAN.FF.W.0103.211004T0020Z-211004T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
720 PM CDT Sun Oct 3 2021
The National Weather Service in Jackson has issued a
* Flash Flood Warning for...
Southeastern Lowndes County in northeastern Mississippi...
* Until 915 PM CDT.
* At 720 PM CDT, Doppler radar indicated thunderstorms produced
heavy rain in Columbus and also in far southeast Lowndes County.
Between 2 and 3.5 inches of rain have fallen. Additional rainfall
amounts of 1 to 2 inches are possible in the warned area. Flash
flooding is ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Columbus.
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 3351 8846 3354 8839 3353 8827 3329 8830
3329 8845
FLASH FLOOD...RADAR INDICATED
$$
DC1 follow-up statement
531
WGUS74 KJAN 040209
FFSJAN
Flash Flood Statement
National Weather Service Jackson MS
909 PM CDT Sun Oct 3 2021
MSC087-040219-
/O.EXP.KJAN.FF.W.0103.000000T0000Z-211004T0215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lowndes MS-
909 PM CDT Sun Oct 3 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 915 PM CDT THIS EVENING FOR
SOUTHEASTERN LOWNDES COUNTY...
Flood waters have receded. Some additional heavy downpours are
possible but the heaviest rain has ended. Flooding is no longer
expected to pose a threat. Please continue to heed any road closures.
LAT...LON 3351 8846 3354 8839 3353 8827 3329 8830
3329 8845
$$
DCThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 3, 8:55 PM CDT | Flash Flood Warning | JAN | Neshoba | 2 hr |
| Oct 4, 2:54 AM CDT | Dense Fog Advisory | JAN | Adams, Attala, Carroll, Choctaw, Claiborne, Clay and 30 more | 6 hr |
| Oct 4, 4:02 PM CDT | Severe Thunderstorm Warning | JAN | Forrest | 43 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.