Alert archive / Alabama / Special Weather Statements in 2021
Special Weather Statement, NWS Mobile, AL
NWS Mobile, AL issued this special weather statement at Sep 17, 2021, 3:16 PM CDT for Mobile County, Alabama. It was in force for 44 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
- Sep 17, 2021, 3:16 PM CDT (20:16 UTC)
- Expired
- Sep 17, 2021, 4:00 PM CDT
- In force
- 44 min
- Issued by
- NWS Mobile, AL
- Hail
- 0.00 in
- Wind
- 40
County Mobile County, AL
The radar
The Mobile radar (KMOB), 32 km from the middle of the area, began a volume at 20:17 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, 8.3 hours before the alert went out and 165 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
- 1826 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 687 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 68 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
346
WWUS84 KMOB 172016
SPSMOB
Special Weather Statement
National Weather Service Mobile AL
316 PM CDT Fri Sep 17 2021
ALZ261-263-172100-
Mobile Central AL-Mobile Inland AL-
316 PM CDT Fri Sep 17 2021
...Strong thunderstorms will impact portions of northern Mobile
County through 400 PM CDT...
At 316 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from 3 miles southwest of Gulfcrest to 4 miles east
of Semmes. Movement was northeast at 20 mph.
HAZARD...Winds in excess of 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Satsuma, Creola, Chunchula, Gulfcrest, Axis and I65 And AL 158.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
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 3096 8833 3114 8816 3114 8809 3092 8799
3068 8821
TIME...MOT...LOC 2016Z 211DEG 19KT 3095 8827 3076 8819
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
$$
MMThe office that day
Everything else NWS Mobile, AL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 17, 5:37 AM CDT | Areal Flood Advisory | MOB | Baldwin | 3 hr |
| Sep 17, 6:59 AM CDT | Areal Flood Advisory | MOB | Escambia | 3 hr |
| Sep 17, 12:41 PM CDT | Areal Flood Advisory | MOB | Baldwin, Escambia | 3 hr |
| Sep 17, 2:50 PM CDT | Special Weather Statement | MOB | Mobile | 40 min |
| Sep 17, 3:32 PM CDT | Areal Flood Advisory | MOB | Mobile, Washington | 3 hr |
| Sep 17, 8:27 AM CDT | Areal Flood Advisory | MOB | Okaloosa, Santa Rosa | 2 hr |
| Sep 17, 9:33 AM CDT | Areal Flood Advisory | MOB | Okaloosa | 2 hr |
| Sep 17, 9:46 AM CDT | Flash Flood Warning | MOB | Okaloosa | 4 hr |
| Sep 17, 7:17 AM CDT | Areal Flood Advisory | MOB | George, Greene, Perry, Stone | 3 hr |
| Sep 17, 8:27 AM CDT | Flash Flood Warning | MOB | Stone | 6 hr |
| Sep 17, 10:11 AM CDT | Flash Flood Warning | MOB | George | 5 hr |
Nearby
Special Weather Statements in Alabama, 2021Every special weather statement 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.