Alert archive / Mississippi / Flash Flood Warnings in 2021
Flash Flood Warning 85, NWS New Orleans, LA
NWS New Orleans, LA issued this flash flood warning at Aug 27, 2021, 1:44 PM CDT for Harrison County, Mississippi. It was in force for 3 hr. 1 report 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
- Aug 27, 2021, 1:44 PM CDT (18:44 UTC)
- Expired
- Aug 27, 2021, 4:45 PM CDT
- In force
- 3 hr
- Issued by
- NWS New Orleans, LA
- Area
- Storm-based polygon
- Flood severity
- None
County Harrison County, MS
The radar
The Mobile radar (KMOB), 83 km from the middle of the area, began a volume at 18:46 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 |
|---|---|---|---|
| Aug 27, 1:58 PM CDT | FLASH FLOOD | 3 Ene Gulfport, MS | REPORT FROM MPING: STREET/ROAD FLOODING; STREET/ROAD CLOSED. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Slidell Radar S, LA (KSIL), launched 12:00Z, 6.7 hours before the alert went out and 66 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
- 311 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 965 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -57 m²/s²
- 0-3 km storm-relative helicity
- -13 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
008
WGUS54 KLIX 271844
FFWLIX
MSC047-272145-
/O.NEW.KLIX.FF.W.0085.210827T1844Z-210827T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service New Orleans LA
144 PM CDT Fri Aug 27 2021
The National Weather Service in New Orleans has issued a
* Flash Flood Warning for...
Southeastern Harrison County in southern Mississippi...
* Until 445 PM CDT.
* At 144 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 4 and 6 inches of rain
have fallen. Additional rainfall amounts of 2 to 4 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, Long Beach, St. Martin, D'iberville and Gulfport
Airport.
This includes the following Interstates...
Interstate 110 in Mississippi near mile marker 1...and
near mile marker 3.
Interstate 10 in Mississippi between mile markers 30 and 45.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3035 8928 3044 8914 3047 8893 3043 8888
3043 8893 3042 8895 3042 8901 3041 8899
3042 8890 3041 8891 3040 8886 3039 8886
3039 8897 3037 8906 3036 8909 3036 8910
3031 8925 3031 8929
FLASH FLOOD...RADAR INDICATED
$$The office that day
Everything else NWS New Orleans, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 10:09 PM CDT | Hurricane Watch | LIX | Amite, Pearl River, Pike, Walthall, Wilkinson | 36 hr |
| Aug 26, 10:09 PM CDT | Storm Surge Watch | LIX | 18 hr | |
| Aug 27, 9:37 AM CDT | River Flood Warning | LIX | Harrison | 6 days |
| Aug 27, 9:37 AM CDT | River Flood Warning | LIX | Hancock | 5 days |
| Aug 27, 9:37 AM CDT | River Flood Warning | LIX | Harrison | 5 days |
| Aug 27, 9:37 AM CDT | River Flood Warning | LIX | Harrison | 6 days |
| Aug 27, 10:10 AM CDT | Areal Flood Advisory | LIX | Hancock, Harrison, Pearl River | 3 hr |
| Aug 27, 10:17 AM CDT | Flash Flood Watch | LIX | 12 hr | |
| Aug 27, 10:46 AM CDT | Tropical Storm Watch | LIX | Amite, Pearl River, Pike, Walthall, Wilkinson | 5 hr |
| Aug 27, 1:28 PM CDT | Areal Flood Advisory | LIX | Harrison, Jackson | 3 hr |
| Aug 27, 4:01 PM CDT | Hurricane Warning | LIX | Amite, Pike, Walthall, Wilkinson | 60 hr |
| Aug 27, 4:01 PM CDT | Tropical Storm Warning | LIX | Amite, Pearl River, Pike, Walthall, Wilkinson | 24 days |
| Aug 27, 4:12 PM CDT | Storm Surge Warning | LIX | 3 days |
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.