Alert archive / Mississippi / Flash Flood Warnings in 2021
Flash Flood Warning 54, NWS New Orleans, LA
NWS New Orleans, LA issued this flash flood warning at Jun 21, 2021, 2:55 PM CDT for Harrison County, Jackson County, Mississippi. It was in force for 67 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
- Jun 21, 2021, 2:55 PM CDT (19:55 UTC)
- Expired
- Jun 21, 2021, 4:02 PM CDT
- In force
- 67 min
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Harrison County, MS, Jackson County, MS
The radar
The Mobile radar (KMOB), 76 km from the middle of the area, began a volume at 19:56 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.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 7.9 hours before the alert went out and 72 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
- 730 J/kg
- Mixed-layer CIN
- -82 J/kg
- Mixed-layer LCL
- 990 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 105 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
898
WGUS54 KLIX 211955
FFWLIX
MSC047-059-212300-
/O.NEW.KLIX.FF.W.0054.210621T1955Z-210621T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service New Orleans LA
255 PM CDT Mon Jun 21 2021
The National Weather Service in New Orleans has issued a
* Flash Flood Warning for...
Southern Harrison County in southern Mississippi...
Southwestern Jackson County in southern Mississippi...
* Until 600 PM CDT.
* At 255 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 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...
Gulfport, Biloxi, Ocean Springs, Long Beach, St. Martin,
D'iberville, Latimer, Gulf Hills, Gulf Park Estates and Gulfport
Airport.
This includes the following Interstates...
Interstate 110 in Mississippi near mile marker 1...and
between mile markers 3 and 4.
Interstate 10 in Mississippi between mile markers 30 and 54.
There was over 2 inches of rain at the Gulfport Observation in 45
minutes already.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3036 8929 3059 8884 3055 8876 3037 8877
3041 8884 3043 8885 3043 8899 3042 8901
3041 8899 3042 8890 3041 8886 3036 8882
3038 8885 3039 8886 3038 8901 3031 8929
3035 8927
FLASH FLOOD...RADAR INDICATED
$$
CAB1 follow-up statement
571
WGUS74 KLIX 212102
FFSLIX
Flash Flood Statement
National Weather Service New Orleans LA
402 PM CDT Mon Jun 21 2021
MSC047-059-212112-
/O.CAN.KLIX.FF.W.0054.000000T0000Z-210621T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Harrison MS-Jackson MS-
402 PM CDT Mon Jun 21 2021
...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHERN HARRISON COUNTY...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
LAT...LON 3036 8928 3057 8888 3043 8888 3043 8899
3042 8901 3041 8899 3042 8891 3041 8891
3041 8886 3039 8886 3038 8901 3031 8929
3035 8927
$$
CABThe office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 2:11 PM CDT | Areal Flood Advisory | LIX | Harrison | 91 min |
| Jun 21, 4:36 PM CDT | Special Weather Statement | LIX | Hancock, Pearl River | 24 min |
| Jun 21, 4:57 PM CDT | Areal Flood Advisory | LIX | Hancock, Harrison, Pearl River | 3 hr |
| Jun 21, 5:18 PM CDT | Severe Thunderstorm Warning | LIX | Hancock | 42 min |
| Jun 21, 5:49 PM CDT | Areal Flood Advisory | LIX | Hancock, Harrison | 3 hr |
| Jun 21, 5:50 PM CDT | Special Weather Statement | LIX | Amite | 25 min |
| Jun 21, 5:55 PM CDT | Flash Flood Warning | LIX | Hancock, Harrison | 3 hr |
| Jun 21, 5:55 PM CDT | Special Weather Statement | LIX | Hancock, Harrison | 50 min |
| Jun 21, 6:24 PM CDT | Special Weather Statement | LIX | Amite, Pike | 66 min |
| Jun 21, 6:32 PM CDT | Special Weather Statement | LIX | Jackson | 58 min |
| Jun 21, 6:51 PM CDT | Flash Flood Warning | LIX | Harrison, Jackson | 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.