Alert archive / Mississippi / Areal Flood Advisories in 2021

Areal Flood Advisory 152, NWS Mobile, AL

July 27, 2021Greene County, Perry County, Wayne County, Mississippi

NWS Mobile, AL issued this areal flood advisory at Jul 27, 2021, 11:21 PM CDT for Greene County, Perry County, Wayne County, Mississippi. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Jul 27, 2021, 11:21 PM CDT (04:21 UTC)
Expired: Jul 28, 2021, 2:18 AM CDT
In force: 3 hr
Issued by: NWS Mobile, AL
Area: Storm-based polygon

Counties Greene County, MS, Perry County, MS, Wayne County, MS

The radar

The Mobile radar (KMOB), 90 km from the middle of the area, began a volume at 04:24 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 00:00Z, 4.4 hours before the alert went out and 150 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: 825 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 1413 m above ground
0-6 km bulk shear: 3 kt
0-1 km storm-relative helicity: -15 m²/s²
0-3 km storm-relative helicity: 6 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 27, 11:13 PM CDT, 8 minutes earlier.

Area forecast discussion, Jul 27, 11:13 PM CDT, 8 minutes before

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In the hours before

Special weather statement, Jul 27, 5:59 PM CDT, 5 hours 22 minutes before

Special Weather Statement
National Weather Service Mobile AL
559 PM CDT Tue Jul 27 2021

FLZ203-204-272345-
Santa Rosa Coastal FL-Santa Rosa Inland FL-
559 PM CDT Tue Jul 27 2021

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...CENTRAL
SANTA ROSA COUNTY UNTIL 645 PM CDT...

At 558 PM CDT, the strong thunderstorm was located near Milton,
moving west at 5 mph.

Wind gusts around 40 mph will be possible with this storm.

Locations impacted include...
Pace, Milton, Bagdad, Pea Ridge, Roeville, Floridatown and Point
Baker.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3077 8729 3074 8700 3059 8691 3058 8701
      3060 8702 3059 8702 3057 8715 3058 8718
      3057 8719
TIME...MOT...LOC 2258Z 073DEG 5KT 3064 8708

Special weather statement, Jul 27, 6:59 PM CDT, 4 hours 22 minutes before

Special Weather Statement
National Weather Service Mobile AL
659 PM CDT Tue Jul 27 2021

ALZ054-280045-
Wilcox AL-
659 PM CDT Tue Jul 27 2021

...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...
EASTERN WILCOX COUNTY UNTIL 745 PM CDT...

At 657 PM CDT, the strong thunderstorm was located 11 miles south of
Belknap, or 17 miles east of Camden, moving south at 10 mph.

Wind gusts over 40 mph will be possible with this storm.

This storm will remain over mainly rural areas of southeastern Wilcox
County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3189 8696 3194 8715 3205 8707 3205 8694
TIME...MOT...LOC 2357Z 013DEG 7KT 3204 8701

Special weather statement, Jul 27, 8:06 PM CDT, 3 hours 15 minutes before

Special Weather Statement
National Weather Service Mobile AL
806 PM CDT Tue Jul 27 2021

ALZ051-280145-
Choctaw AL-
806 PM CDT Tue Jul 27 2021

...STRONG THUNDERSTORMS WILL AFFECT THE FOLLOWING COUNTIES...
NORTHERN CHOCTAW COUNTY UNTIL 845 PM CDT...

At 804 PM CDT, strong thunderstorms were located along a line
extending from 6 miles northeast of Lisman to 3 miles north of
Pennington. These storms were moving very slowly to the southwest
at 5 mph.

Wind gusts up to around 40 mph will be possible with these storms.

Locations impacted include...
Lisman and Pennington.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3231 8795 3230 8796 3230 8800 3228 8801
      3228 8802 3227 8802 3226 8801 3218 8801
      3215 8802 3214 8804 3209 8805 3217 8841
      3231 8839
TIME...MOT...LOC 0104Z 358DEG 3KT 3225 8821 3226 8803

Special weather statement, Jul 27, 9:49 PM CDT, 1 hour 32 minutes before

Special Weather Statement
National Weather Service Mobile AL
949 PM CDT Tue Jul 27 2021

ALZ052-261-262-MSZ067-076-280330-
Baldwin Inland AL-Washington AL-Mobile Inland AL-Greene MS-Wayne MS-
949 PM CDT Tue Jul 27 2021

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT THE FOLLOWING
COUNTIES...NORTHEASTERN MOBILE...NORTHWESTERN BALDWIN...SOUTHERN
WASHINGTON...SOUTHEASTERN WAYNE AND NORTHEASTERN GREENE COUNTIES
UNTIL 1030 PM CDT...

At 947 PM CDT, the strong thunderstorms were located along a line
extending from 6 miles southwest of State Line to 3 miles northeast
of Deer Park to 5 miles west of Calvert, and moving southwest at
10 mph.

Wind gusts of 30 to 40 mph will be possible with these storms.

Locations impacted include...
Citronelle, Deer Park, Tibbie, Mount Vernon, Calvert, State Line,
Fruitdale, McIntosh and Movico.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3156 8859 3137 8812 3122 8793 3121 8795
      3116 8794 3115 8795 3115 8794 3114 8794
      3116 8793 3115 8790 3117 8790 3114 8787
      3115 8787 3118 8789 3118 8788 3114 8783
      3099 8804 3116 8844 3134 8872
TIME...MOT...LOC 0247Z 069DEG 9KT 3138 8857 3126 8829 3113 8810

Special weather statement, Jul 27, 11:00 PM CDT, 21 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 27, 8:06 PM CDT	Special Weather Statement	MOB	Choctaw	39 min
Jul 27, 8:26 PM CDT	Areal Flood Advisory	MOB	Choctaw	3 hr
Jul 27, 9:49 PM CDT	Special Weather Statement	MOB	Washington	41 min
Jul 27, 10:12 PM CDT	Areal Flood Advisory	MOB	Mobile, Washington	3 hr
Jul 28, 2:13 AM CDT	Heat Advisory	MOB	Butler, Choctaw, Clarke, Conecuh, Covington, Crenshaw and 4 more	16 hr
Jul 28, 1:46 PM CDT	Heat Advisory	MOB	Baldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more	44 hr
Jul 28, 1:46 PM CDT	Heat Advisory	MOB	Baldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more	4 days
Jul 28, 4:37 PM CDT	Special Weather Statement	MOB	Covington	38 min
Jul 28, 5:16 PM CDT	Areal Flood Advisory	MOB	Covington	3 hr
Jul 28, 5:16 PM CDT	Special Weather Statement	MOB	Covington	44 min
Jul 28, 5:29 PM CDT	Areal Flood Advisory	MOB	Conecuh, Covington	3 hr
Jul 28, 5:34 PM CDT	Special Weather Statement	MOB	Mobile	41 min
Jul 28, 5:39 PM CDT	Areal Flood Advisory	MOB	Covington, Escambia	3 hr
Jul 28, 6:24 PM CDT	Special Weather Statement	MOB	Escambia	51 min
Jul 28, 6:26 PM CDT	Special Weather Statement	MOB	Baldwin	49 min
Jul 28, 6:48 PM CDT	Areal Flood Advisory	MOB	Escambia	3 hr
Jul 28, 6:54 PM CDT	Special Weather Statement	MOB	Escambia	51 min
Jul 28, 3:21 PM CDT	Special Weather Statement	MOB	Okaloosa	39 min
Jul 28, 3:27 PM CDT	Special Weather Statement	MOB	Santa Rosa	48 min
Jul 28, 3:37 PM CDT	Severe Thunderstorm Warning	MOB	Okaloosa, Santa Rosa	23 min
Jul 28, 3:55 PM CDT	Special Weather Statement	MOB	Okaloosa	50 min
Jul 28, 3:58 PM CDT	Severe Thunderstorm Warning	MOB	Santa Rosa	32 min
Jul 28, 4:08 PM CDT	Areal Flood Advisory	MOB	Okaloosa	14 min
Jul 28, 4:22 PM CDT	Flash Flood Warning	MOB	Okaloosa	5 hr
Jul 28, 4:32 PM CDT	Special Weather Statement	MOB	Santa Rosa	43 min
Jul 28, 4:33 PM CDT	Areal Flood Advisory	MOB	Santa Rosa	3 hr
Jul 27, 11:00 PM CDT	Special Weather Statement	MOB	Greene	45 min
Jul 27, 11:48 PM CDT	Special Weather Statement	MOB	George, Perry	57 min
Jul 28, 5:56 PM CDT	Special Weather Statement	MOB	Perry	34 min

Nearby

Areal Flood Advisories in Mississippi, 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.