Alert archive / Mississippi / Flash Flood Warnings in 2021
Flash Flood Warning 81, NWS Jackson, MS
NWS Jackson, MS issued this flash flood warning at Aug 19, 2021, 7:28 PM CDT for Scott County, Smith County, Mississippi. It was in force for 3 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 19, 2021, 7:28 PM CDT (00:28 UTC)
- Expired
- Aug 19, 2021, 10:05 PM CDT
- In force
- 3 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), 36 km from the middle of the area, began a volume at 00:28 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, 0.5 hours before the alert went out and 45 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
- 413 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 1178 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
793
WGUS54 KJAN 200028
FFWJAN
MSC123-129-200330-
/O.NEW.KJAN.FF.W.0081.210820T0028Z-210820T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
728 PM CDT Thu Aug 19 2021
The National Weather Service in Jackson has issued a
* Flash Flood Warning for...
Scott County in central Mississippi...
Northern Smith County in central Mississippi...
* Until 1030 PM CDT.
* At 728 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 4 inches of rain
have already fallen. The expected rainfall rate is 1 to 2 inches
per hour. Additional rainfall amounts of 1 to 3 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...
Forest, Morton, Homewood, Pulaski, Burns, Pineville, Hillsboro,
Branch, Polkville and Lake.
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 3245 8975 3247 8932 3208 8932 3209 8973
3235 8973
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...1-2 INCHES IN 1 HOUR
$$
NF1 follow-up statement
744
WGUS74 KJAN 200305
FFSJAN
Flash Flood Statement
National Weather Service Jackson MS
1005 PM CDT Thu Aug 19 2021
MSC123-129-200315-
/O.CAN.KJAN.FF.W.0081.000000T0000Z-210820T0330Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Scott MS-Smith MS-
1005 PM CDT Thu Aug 19 2021
...FLASH FLOOD WARNING IS CANCELLED FOR SCOTT AND NORTHERN SMITH
COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 3245 8975 3247 8932 3208 8932 3209 8973
3235 8973
$$
NFThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 7:34 PM CDT | Flash Flood Warning | JAN | Jones | 100 min |
| Aug 19, 7:41 PM CDT | Special Weather Statement | JAN | Rankin | 34 min |
| Aug 20, 3:05 PM CDT | Heat Advisory | JAN | Adams, Attala, Bolivar, Carroll, Claiborne, Copiah and 28 more | 3 days |
| Aug 20, 3:47 PM CDT | Special Weather Statement | JAN | Forrest, Lamar | 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.