Alert archive / Mississippi / Flash Flood Warnings in 2021
Flash Flood Warning 25, NWS Jackson, MS
NWS Jackson, MS issued this flash flood warning at Jun 6, 2021, 9:52 AM CDT for Smith County, Mississippi. It was in force for 3 hr. 2 reports 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
- Jun 6, 2021, 9:52 AM CDT (14:52 UTC)
- Expired
- Jun 6, 2021, 12:45 PM CDT
- In force
- 3 hr
- Issued by
- NWS Jackson, MS
- Area
- Storm-based polygon
- Flood severity
- None
County Smith County, MS
The radar
The Jackson/Brandon,MS radar (KDGX), 55 km from the middle of the area, began a volume at 14:56 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 |
|---|---|---|---|
| Jun 6, 12:45 PM CDT | FLASH FLOOD | 3 Se Center Ridge, MS | FLOODING AT INTERSECTION OF COUNTY ROAD 80 AND 19. |
| Jun 6, 12:45 PM CDT | FLASH FLOOD | 4 Ese Center Ridge, MS | FLOODING AT INTERSECTION OF COUNTY ROAD 80 AND 78. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Jackson, MS (KJAN), launched 12:00Z, 2.9 hours before the alert went out and 65 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
- 562 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 548 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 226 m²/s²
- 0-3 km storm-relative helicity
- 236 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 2.9
The text
As transmitted.
204
WGUS54 KJAN 061452
FFWJAN
MSC129-061745-
/O.NEW.KJAN.FF.W.0025.210606T1452Z-210606T1745Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Jackson MS
952 AM CDT Sun Jun 6 2021
The National Weather Service in Jackson has issued a
* Flash Flood Warning for...
Southern Smith County in central Mississippi...
* Until 1245 PM CDT.
* At 952 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 4 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...
Raleigh, Center Ridge, Mize and Sylvarena.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3198 8932 3179 8950 3178 8965 3201 8965
3204 8966 3204 8967 3206 8967 3209 8932
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL...2-3 INCHES IN 1 HOUR
$$
TWThe office that day
Everything else NWS Jackson, MS issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 3:01 AM CDT | Flash Flood Watch | JAN | Clarke, Covington, Forrest, Jasper, Jefferson Davis, Jones and 6 more | 15 hr |
| Jun 6, 8:08 AM CDT | Flash Flood Warning | JAN | Jefferson Davis, Lawrence | 4 hr |
| Jun 6, 9:28 AM CDT | Flash Flood Warning | JAN | Simpson | 3 hr |
| Jun 6, 11:03 AM CDT | Flash Flood Warning | JAN | Jefferson Davis, Lawrence | 3 hr |
| Jun 6, 12:56 PM CDT | Flash Flood Warning | JAN | Covington, Jasper, Jefferson Davis, Jones, Smith | 4 hr |
| Jun 6, 2:59 PM CDT | Flash Flood Warning | JAN | Jones | 3 hr |
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.