Alert archive / Alabama / Small Craft Advisories in 2021

Small Craft Advisory 31, NWS Mobile, AL

June 17, 2021

NWS Mobile, AL issued this small craft advisory at Jun 17, 2021, 4:34 PM CDT. It took effect at Jun 18, 2021, 7:00 AM CDT. It was in force for .

The area

The counties it named.

The facts

Issued: Jun 17, 2021, 4:34 PM CDT (21:34 UTC)
In effect from: Jun 18, 2021, 7:00 AM CDT
Expired: Jun 18, 2021, 6:15 AM CDT
In force
Issued by: NWS Mobile, AL

The text

As transmitted.

758 
WHUS74 KMOB 172134
MWWMOB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Mobile AL
434 PM CDT Thu Jun 17 2021

GMZ630>632-650-670-180530-
/O.NEW.KMOB.TR.W.1003.210617T2134Z-000000T0000Z/
Northern Mobile Bay-Southern Mobile Bay-Mississippi Sound-
Coastal waters from Pensacola FL to Pascagoula MS out 20 NM-
Waters from Pensacola FL to Pascagoula MS from 20 to 60 NM-
434 PM CDT Thu Jun 17 2021

...TROPICAL STORM WARNING IN EFFECT...

* WHAT...South winds 25 to 35 kt with gusts up to 45 kt and seas 9
  to 14 ft offshore and 2 to 4 feet within Mobile Bay and the
  Mississippi Sound.

* WHERE...Northern Mobile Bay, Southern Mobile Bay, Mississippi 
  Sound, Coastal waters from Pensacola FL to Pascagoula MS out 
  20 NM and Waters from Pensacola FL to Pascagoula MS from 20 to 
  60 NM.

* WHEN...Tropical Storm force winds possible from early Saturday 
  morning until Saturday morning.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could capsize or damage vessels and reduce visibility.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

GMZ633>636-655-675-180530-
/O.NEW.KMOB.SC.Y.0031.210618T1200Z-210621T0600Z/
Perdido Bay-Pensacola Bay System-Western Choctawhatchee Bay-
Eastern Choctawhatchee Bay-
Coastal waters from Okaloosa Walton County Line FL to Pensacola
FL out 20 NM-
Waters from Okaloosa Walton County Line FL to Pensacola FL from
20 to 60 NM-
434 PM CDT Thu Jun 17 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM FRIDAY TO 1 AM CDT
MONDAY...

* WHAT...South winds 15 to 25 kt with gusts up to 30 kt and seas 7
  to 10 ft expected offshore with seas 1 to 3 feet within coastal
  bays and waterways.

* WHERE...Portions of the coastal waters of Alabama and 
  northwest Florida. 

* WHEN...From 7 AM Friday to 1 AM CDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

2 follow-up statements

552 
WHUS74 KMOB 180340
MWWMOB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Mobile AL
1040 PM CDT Thu Jun 17 2021

GMZ630>632-650-670-181145-
/O.CON.KMOB.TR.W.1003.000000T0000Z-000000T0000Z/
Northern Mobile Bay-Southern Mobile Bay-Mississippi Sound-
Coastal waters from Pensacola FL to Pascagoula MS out 20 NM-
Waters from Pensacola FL to Pascagoula MS from 20 to 60 NM-
1040 PM CDT Thu Jun 17 2021

...TROPICAL STORM WARNING REMAINS IN EFFECT...

* WHAT...South winds 25 to 35 kt with gusts up to 45 kt and seas 
  9 to 14 ft offshore and 2 to 4 feet within Mobile Bay and the 
  Mississippi Sound.

* WHERE...Northern Mobile Bay, Southern Mobile Bay, Mississippi 
  Sound, Coastal waters from Pensacola FL to Pascagoula MS out 
  20 NM and Waters from Pensacola FL to Pascagoula MS from 20 to 
  60 NM.

* WHEN...Tropical Storm force winds possible from early Saturday 
  morning until Saturday morning.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

GMZ633>636-655-675-181145-
/O.CON.KMOB.SC.Y.0031.210618T1200Z-210621T0600Z/
Perdido Bay-Pensacola Bay System-Western Choctawhatchee Bay-
Eastern Choctawhatchee Bay-
Coastal waters from Okaloosa Walton County Line FL to Pensacola
FL out 20 NM-
Waters from Okaloosa Walton County Line FL to Pensacola FL from
20 to 60 NM-
1040 PM CDT Thu Jun 17 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 AM FRIDAY TO
1 AM CDT MONDAY...

* WHAT...South winds 15 to 25 kt with gusts up to 30 kt and seas 
  7 to 10 ft expected offshore with seas 1 to 3 feet within 
  coastal bays and waterways.

* WHERE...Portions of the coastal waters of Alabama and 
  northwest Florida.

* WHEN...From 7 AM Friday to 1 AM CDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

789 
WHUS74 KMOB 181115
MWWMOB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Mobile AL
615 AM CDT Fri Jun 18 2021

GMZ633>636-655-675-181915-
/O.EXA.KMOB.TR.W.1003.000000T0000Z-000000T0000Z/
/O.CAN.KMOB.SC.Y.0031.210618T1200Z-210621T0600Z/
Perdido Bay-Pensacola Bay System-Western Choctawhatchee Bay-
Eastern Choctawhatchee Bay-
Coastal waters from Okaloosa Walton County Line FL to Pensacola
FL out 20 NM-
Waters from Okaloosa Walton County Line FL to Pensacola FL from
20 to 60 NM-
615 AM CDT Fri Jun 18 2021

...TROPICAL STORM WARNING IN EFFECT...
...SMALL CRAFT ADVISORY IS CANCELLED...

* WHAT...South winds 20 to 25 kt with gusts up to 40 kt and seas 9
  to 13 ft offshore and 2 to 4 feet on areas bays.

* WHERE...Coastal waters from Okaloosa Walton County Line to
  Pensacola FL out 20 NM and Waters from Okaloosa Walton County
  Line to Pensacola FL from 20 to 60 NM.
  
* WHEN...Tropical Storm force winds possible from early Saturday
  morning until Saturday night.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

GMZ630>632-650-670-181915-
/O.CON.KMOB.TR.W.1003.000000T0000Z-000000T0000Z/
Northern Mobile Bay-Southern Mobile Bay-Mississippi Sound-
Coastal waters from Pensacola FL to Pascagoula MS out 20 NM-
Waters from Pensacola FL to Pascagoula MS from 20 to 60 NM-
615 AM CDT Fri Jun 18 2021

...TROPICAL STORM WARNING REMAINS IN EFFECT...

* WHAT...South winds 25 to 35 kt with gusts up to 45 kt and seas
  14 to 17 ft offshore and 2 to 4 feet within Mobile Bay and the 
  Mississippi Sound.

* WHERE...Northern Mobile Bay, Southern Mobile Bay, Mississippi 
  Sound, Coastal waters from Pensacola FL to Pascagoula MS out 
  20 NM and Waters from Pensacola FL to Pascagoula MS from 20 to 
  60 NM.

* WHEN...Tropical Storm force winds expected from early Saturday
  morning until Saturday night.

* IMPACTS...Very strong winds will cause hazardous seas which 
  could capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 17, 5:52 AM CDT	Rip Current Statement	MOB	Baldwin, Mobile	6 days
Jun 17, 5:52 AM CDT	High Surf Advisory	MOB	Baldwin, Mobile	11 hr
Jun 17, 1:58 PM CDT	Flash Flood Watch	MOB	Baldwin, Butler, Choctaw, Clarke, Conecuh, Covington and 6 more	51 hr
Jun 17, 4:34 PM CDT	Tropical Storm Warning	MOB	Baldwin, Mobile	47 hr
Jun 17, 4:36 PM CDT	Coastal Flood Advisory	MOB	Baldwin, Mobile	54 hr
Jun 17, 4:36 PM CDT	High Surf Warning	MOB	Baldwin, Mobile	60 hr

Nearby

Small Craft Advisories in Alabama, 2021 Every small craft 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.