Alert archive / Alabama / Areal Flood Advisories in 2021
Areal Flood Advisory 163, NWS Mobile, AL
NWS Mobile, AL issued this areal flood advisory at Aug 2, 2021, 3:10 PM CDT for Mobile County, Alabama. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Aug 2, 2021, 3:10 PM CDT (20:10 UTC)
- Expired
- Aug 2, 2021, 5:15 PM CDT
- In force
- 2 hr
- Issued by
- NWS Mobile, AL
- Area
- Storm-based polygon
County Mobile County, AL
The radar
The Mobile radar (KMOB), 4 km from the middle of the area, began a volume at 20:09 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, 8.2 hours before the alert went out and 152 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
- 2142 J/kg
- Mixed-layer CIN
- -26 J/kg
- Mixed-layer LCL
- 743 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Aug 2, 1:02 PM CDT, 2 hours 8 minutes earlier.
Area forecast discussion, Aug 2, 1:02 PM CDT, 2 hours 8 minutes before
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</html>In the hours before
Special weather statement, Aug 2, 2:16 PM CDT, 54 minutes before
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The site you requested is temporarily down for maintenance or an unexpected outage.
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</html>Special weather statement, Aug 2, 2:23 PM CDT, 47 minutes before
Special Weather Statement
National Weather Service Mobile AL
223 PM CDT Mon Aug 2 2021
ALZ056-022000-
Conecuh AL-
223 PM CDT Mon Aug 2 2021
...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...CENTRAL
CONECUH COUNTY UNTIL 300 PM CDT...
At 223 PM CDT, the strong thunderstorm was located 8 miles east of
Peterman, or 11 miles northwest of Evergreen, moving east 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 central Conecuh
County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 3145 8682 3143 8717 3149 8719 3152 8717
3153 8717 3156 8716 3161 8714 3163 8714
3172 8690 3163 8691 3159 8689 3158 8687
3155 8687 3154 8685
TIME...MOT...LOC 1923Z 256DEG 15KT 3154 8712Special weather statement, Aug 2, 2:34 PM CDT, 36 minutes before
Special Weather Statement
National Weather Service Mobile AL
234 PM CDT Mon Aug 2 2021
FLZ205-022000-
Okaloosa Inland FL-
234 PM CDT Mon Aug 2 2021
...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...EAST
CENTRAL OKALOOSA COUNTY UNTIL 300 PM CDT...
At 233 PM CDT, the strong thunderstorm was located 5 miles southeast
of Crestview, moving northeast at 5 mph.
Wind gusts of 40 to 50 mph will be possible with this storm.
Locations impacted include...
Crestview.
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 3059 8645 3067 8663 3085 8658 3081 8639
3066 8639
TIME...MOT...LOC 1933Z 206DEG 5KT 3070 8651Special weather statement, Aug 2, 2:59 PM CDT, 11 minutes before
Special Weather Statement
National Weather Service Mobile AL
259 PM CDT Mon Aug 2 2021
ALZ261-263-022045-
Mobile Central AL-Mobile Inland AL-
259 PM CDT Mon Aug 2 2021
...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...WEST
CENTRAL MOBILE COUNTY UNTIL 345 PM CDT...
At 259 PM CDT, the strong thunderstorm was located 4 miles southeast
of Tanner Williams, or 10 miles northwest of Tillmans Corner, moving
northeast at 20 mph.
Wind gusts of 40 to 50 mph will be possible with this storm.
Locations impacted include...
Midtown Mobile, Downtown Mobile, Prichard, Chickasaw, Semmes, Tanner
Williams, I65 And I165, I65 And AL 158 and Mobile Regional Airport.
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 3059 8836 3069 8841 3071 8841 3090 8818
3074 8804 3073 8804 3071 8802 3070 8802
3069 8803 3069 8804
TIME...MOT...LOC 1959Z 232DEG 16KT 3067 8832Special weather statement, Aug 2, 3:04 PM CDT, 6 minutes before
Special Weather Statement National Weather Service Mobile AL 304 PM CDT Mon Aug 2 2021 ALZ059-FLZ201-203-022030- Escambia AL-Escambia Inland FL-Santa Rosa Inland FL- 304 PM CDT Mon Aug 2 2021 ...A STRONG THUNDERSTORM WILL AFFECT THE FOLLOWING COUNTIES...SOUTH CENTRAL ESCAMBIA...NORTHWESTERN SANTA ROSA AND NORTH CENTRAL ESCAMBIA COUNTIES UNTIL 330 PM CDT... At 304 PM CDT, the strong thunderstorm was located over Century, moving northeast at 10 mph. Wind gusts of 40 to 50 mph will be possible with this storm. Locations impacted include... Century, Flomaton, Jay and Pollard. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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 3091 8728 3097 8733 3116 8717 3099 8701 TIME...MOT...LOC 2004Z 236DEG 11KT 3098 8724
The office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 7:03 PM CDT | Special Weather Statement | MOB | Choctaw | 42 min |
| Aug 1, 8:12 PM CDT | Special Weather Statement | MOB | Conecuh | 63 min |
| Aug 1, 8:17 PM CDT | Special Weather Statement | MOB | Choctaw | 43 min |
| Aug 1, 8:39 PM CDT | Severe Thunderstorm Warning | MOB | Choctaw | 51 min |
| Aug 1, 8:50 PM CDT | Special Weather Statement | MOB | Wilcox | 55 min |
| Aug 1, 9:02 PM CDT | Special Weather Statement | MOB | Choctaw | 43 min |
| Aug 1, 9:06 PM CDT | Areal Flood Advisory | MOB | Choctaw | 3 hr |
| Aug 1, 9:18 PM CDT | Severe Thunderstorm Warning | MOB | Conecuh | 57 min |
| Aug 1, 9:35 PM CDT | Flash Flood Warning | MOB | Choctaw | 6 hr |
| Aug 1, 9:51 PM CDT | Severe Thunderstorm Warning | MOB | Wilcox | 31 min |
| Aug 1, 10:21 PM CDT | Special Weather Statement | MOB | Wilcox | 54 min |
| Aug 1, 10:39 PM CDT | Special Weather Statement | MOB | Monroe | 51 min |
| Aug 1, 10:40 PM CDT | Special Weather Statement | MOB | Conecuh | 65 min |
| Aug 2, 2:23 PM CDT | Special Weather Statement | MOB | Conecuh | 37 min |
| Aug 2, 2:59 PM CDT | Special Weather Statement | MOB | Mobile | 46 min |
| Aug 2, 3:04 PM CDT | Special Weather Statement | MOB | Escambia | 26 min |
| Aug 2, 3:29 PM CDT | Special Weather Statement | MOB | Crenshaw | 31 min |
| Aug 2, 3:32 PM CDT | Special Marine Warning | MOB | 43 min | |
| Aug 2, 3:42 PM CDT | Special Weather Statement | MOB | Mobile | 48 min |
| Aug 2, 3:47 PM CDT | Special Weather Statement | MOB | Crenshaw | 43 min |
| Aug 2, 4:32 PM CDT | Areal Flood Advisory | MOB | Covington | 118 min |
| Aug 2, 5:37 PM CDT | Special Marine Warning | MOB | 83 min | |
| Aug 2, 2:16 PM CDT | Special Weather Statement | MOB | Santa Rosa | 29 min |
| Aug 2, 2:34 PM CDT | Special Weather Statement | MOB | Okaloosa | 26 min |
| Aug 2, 2:56 PM CDT | Areal Flood Advisory | MOB | Okaloosa | 2 hr |
Nearby
Areal Flood Advisories in Alabama, 2021Every 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.