Alert archive / Alabama / Areal Flood Advisories in 2021

Areal Flood Advisory 129, NWS Mobile, AL

July 16, 2021Clarke County, Wilcox County, Alabama

NWS Mobile, AL issued this areal flood advisory at Jul 16, 2021, 3:04 PM CDT for Clarke County, Wilcox County, Alabama. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Jul 16, 2021, 3:04 PM CDT (20:04 UTC)
Expired: Jul 16, 2021, 6:15 PM CDT
In force: 3 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon

Counties Clarke County, AL, Wilcox County, AL

The radar

The Mobile radar (KMOB), 143 km from the middle of the area, began a volume at 20:04 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

Birmingham, AL (KBMX), launched 12:00Z, 8.1 hours before the alert went out and 167 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 358 J/kg
Mixed-layer CIN: -135 J/kg
Mixed-layer LCL: 1177 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -1 m²/s²
0-3 km storm-relative helicity: -3 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Mobile, AL wrote its last area forecast discussion before this areal flood advisory went out at Jul 16, 2:54 PM CDT, 10 minutes earlier.

Area forecast discussion, Jul 16, 2:54 PM CDT, 10 minutes before

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In the hours before

Special weather statement, Jul 16, 11:29 AM CDT, 3 hours 35 minutes before

Special Weather Statement
National Weather Service Mobile AL
1129 AM CDT Fri Jul 16 2021

MSZ078-079-161715-
Stone MS-George MS-
1129 AM CDT Fri Jul 16 2021

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...
SOUTHWESTERN GEORGE AND SOUTHEASTERN STONE COUNTIES UNTIL 1215 PM
CDT...

At 1128 AM CDT, the strong thunderstorm was located 12 miles north of
Latimer, or 16 miles north of St. Martin, moving north at 15 mph.

Wind gusts of 40 to 50 mph will be possible with this storm.

This storm will remain over mainly rural areas of southwestern George
and southeastern Stone Counties.

LAT...LON 3086 8898 3088 8868 3073 8872 3074 8888
      3068 8889 3068 8896
TIME...MOT...LOC 1628Z 180DEG 11KT 3068 8885

Black

Local storm report, Jul 16, 12:29 PM CDT, 2 hours 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
1229 PM CDT FRI JUL 16 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1200 PM     FLASH FLOOD      FOLEY                   30.41N 87.68W
07/16/2021                   BALDWIN            AL   PUBLIC

            NUMEROUS ROADS FLOODED IN THE FOLEY
            COMMUNITY. AT LEAST A FOOT OF WATER REPORTED
            ON ONE OF THE ROADS.

&&

MB

Local storm report, Jul 16, 12:35 PM CDT, 2 hours 29 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
1235 PM CDT FRI JUL 16 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1216 PM     HEAVY RAIN       1 E FOLEY               30.40N 87.67W
07/16/2021  M4.92 INCH       BALDWIN            AL   MESONET

            MESONET STATION (DW1458) IN FOLEY REPORTED
            4.92 INCHES OF RAIN SO FAR.

&&

MB

Local storm report, Jul 16, 12:51 PM CDT, 2 hours 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MOBILE AL
1251 PM CDT FRI JUL 16 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1202 PM     FLASH FLOOD      2 ESE FOLEY             30.39N 87.65W
07/16/2021                   BALDWIN            AL   PUBLIC

            REPORTS OF WATER OVER THE ROAD ALONG THE
            FOLEY BEACH EXPRESS AT DOC MCDUFFIE RD.

&&

MB

Local storm report, Jul 16, 2:38 PM CDT, 26 minutes before

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Local storm report, Jul 16, 2:49 PM CDT, 15 minutes before

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The office that day

Everything else NWS Mobile, AL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 15, 7:12 PM CDT	Severe Thunderstorm Warning	MOB	Baldwin, Clarke, Monroe	48 min
Jul 15, 7:19 PM CDT	Severe Thunderstorm Warning	MOB	Clarke, Monroe, Wilcox	41 min
Jul 15, 7:27 PM CDT	Areal Flood Advisory	MOB	Conecuh, Escambia, Monroe	3 hr
Jul 15, 8:09 PM CDT	Special Weather Statement	MOB	Clarke, Wilcox	66 min
Jul 15, 8:21 PM CDT	Areal Flood Advisory	MOB	Wilcox	3 hr
Jul 15, 8:36 PM CDT	Flash Flood Warning	MOB	Wilcox	6 hr
Jul 15, 10:24 PM CDT	Areal Flood Advisory	MOB	Choctaw	3 hr
Jul 15, 11:26 PM CDT	Areal Flood Advisory	MOB	Choctaw, Washington	3 hr
Jul 16, 10:17 AM CDT	Areal Flood Advisory	MOB	Baldwin	4 hr
Jul 16, 10:54 AM CDT	Flash Flood Warning	MOB	Baldwin	6 hr
Jul 16, 12:01 PM CDT	Areal Flood Advisory	MOB	Baldwin	3 hr
Jul 16, 12:23 PM CDT	Flash Flood Warning	MOB	Baldwin	3 hr
Jul 16, 1:41 PM CDT	Special Marine Warning	MOB		64 min
Jul 16, 11:44 AM CDT	Areal Flood Advisory	MOB	Escambia	3 hr
Jul 16, 11:29 AM CDT	Special Weather Statement	MOB	George	46 min
Jul 16, 12:26 PM CDT	Areal Flood Advisory	MOB	George	3 hr

Nearby

Areal Flood Advisories in Alabama, 2021 Every areal flood advisory 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.