Alert archive / Mississippi / Flash Flood Warnings in 2021
Flash Flood Warning 76, NWS Jackson, MS
NWS Jackson, MS issued this flash flood warning at Aug 15, 2021, 6:24 PM CDT for Scott County, Smith 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
- Aug 15, 2021, 6:24 PM CDT (23:24 UTC)
- Expired
- Aug 15, 2021, 8:30 PM CDT
- In force
- 2 hr
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
- Flood severity
- None
Counties Scott County, MS, Smith County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 53 km from the middle of the area, began a volume at 23:26 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 12:00Z, 11.4 hours before the alert went out and 62 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
- 834 J/kg
- Mixed-layer CIN
- -80 J/kg
- Mixed-layer LCL
- 733 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
215
WGUS54 KJAN 152324
FFWJAN
MSC123-129-160130-
/O.NEW.KJAN.FF.W.0076.210815T2324Z-210816T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
624 PM CDT Sun Aug 15 2021
The National Weather Service in Jackson has issued a
* Flash Flood Warning for...
Southeastern Scott County in central Mississippi...
Northern Smith County in central Mississippi...
* Until 830 PM CDT.
* At 624 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 3 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...
Homewood and Pulaski.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3226 8968 3231 8932 3228 8932 3227 8932
3226 8932 3225 8932 3222 8932 3215 8932
3214 8968
FLASH FLOOD...RADAR INDICATED
$$
GRG1 follow-up statement
774
WGUS74 KJAN 160007
FFSJAN
Flash Flood Statement
National Weather Service Jackson MS
707 PM CDT Sun Aug 15 2021
MSC123-129-160130-
/O.CON.KJAN.FF.W.0076.000000T0000Z-210816T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Scott MS-Smith MS-
707 PM CDT Sun Aug 15 2021
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 830 PM CDT THIS
EVENING FOR SOUTHEASTERN SCOTT AND NORTHERN SMITH COUNTIES...
At 707 PM CDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 3.5 and 4.5 inches of rain have
fallen. Additional rainfall amounts of 1 to 2 inches are possible in
the warned area. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Homewood and Pulaski.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 3226 8968 3231 8932 3228 8932 3227 8932
3226 8932 3225 8932 3222 8932 3215 8932
3214 8968
FLASH FLOOD...RADAR INDICATED
$$
GRGThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 14, 7:12 PM CDT | Special Weather Statement | JAN | Lamar | 48 min |
| Aug 14, 7:28 PM CDT | Special Weather Statement | JAN | Clay | 47 min |
| Aug 14, 7:48 PM CDT | Flash Flood Warning | JAN | Lamar | 2 hr |
| Aug 14, 7:56 PM CDT | Special Weather Statement | JAN | Clay | 49 min |
| Aug 14, 8:42 PM CDT | Special Weather Statement | JAN | Webster | 33 min |
| Aug 14, 8:43 PM CDT | Special Weather Statement | JAN | Oktibbeha | 47 min |
| Aug 14, 9:02 PM CDT | Special Weather Statement | JAN | Clarke | 43 min |
| Aug 14, 9:17 PM CDT | Special Weather Statement | JAN | Webster | 43 min |
| Aug 14, 9:26 PM CDT | Special Weather Statement | JAN | Jefferson Davis | 34 min |
| Aug 14, 9:49 PM CDT | Special Weather Statement | JAN | Clarke | 41 min |
| Aug 15, 1:21 PM CDT | Special Weather Statement | JAN | Forrest | 24 min |
| Aug 15, 1:28 PM CDT | Special Weather Statement | JAN | Holmes | 32 min |
| Aug 15, 3:32 PM CDT | Special Weather Statement | JAN | Madison | 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.