Alert archive / Alabama / Small Craft Advisories in 2021

Small Craft Advisory 29, NWS Mobile, AL

May 20, 2021

NWS Mobile, AL issued this small craft advisory at May 20, 2021, 3:49 PM CDT. It took effect at May 21, 2021, 12:00 PM CDT. It was in force for 30 hr.

The area

The counties it named.

The facts

Issued
May 20, 2021, 3:49 PM CDT (20:49 UTC)
In effect from
May 21, 2021, 12:00 PM CDT
Expired
May 22, 2021, 6:00 PM CDT
In force
30 hr
Issued by
NWS Mobile, AL

The text

As transmitted.

089 
WHUS74 KMOB 202049
MWWMOB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Mobile AL
349 PM CDT Thu May 20 2021

GMZ650-655-670-675-210500-
/O.UPG.KMOB.SC.Y.0028.000000T0000Z-210523T0300Z/
/O.NEW.KMOB.GL.W.0004.210520T2049Z-210521T1700Z/
/O.NEW.KMOB.SC.Y.0029.210521T1700Z-210522T2300Z/
Coastal waters from Pensacola FL to Pascagoula MS out 20 NM-
Coastal waters from Okaloosa Walton County Line FL to Pensacola
FL out 20 NM-
Waters from Pensacola FL to Pascagoula MS from 20 to 60 NM-
Waters from Okaloosa Walton County Line FL to Pensacola FL from
20 to 60 NM-
349 PM CDT Thu May 20 2021

...GALE WARNING IN EFFECT UNTIL NOON CDT FRIDAY...
...SMALL CRAFT ADVISORY IN EFFECT FROM NOON FRIDAY TO 6 PM CDT
SATURDAY...

* WHAT...For the Gale Warning, east to southeast winds 25 to 30 kt
  with frequent gusts up to 40 kt and seas 7 to 11 ft. For the
  Small Craft Advisory, east to southeast winds 18 to 25 kt with
  gusts up to 35 kt and seas 6 to 9 ft.

* WHERE...Coastal waters from Okaloosa Walton County Line FL to
  Pascagoula MS out 60 NM.

* WHEN...For the Gale Warning, until noon CDT Friday. For the 
  Small Craft Advisory, from noon Friday to 6 PM CDT Saturday.

* IMPACTS...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.

&&

$$

GMZ630-633>636-210500-
/O.EXT.KMOB.SC.Y.0028.000000T0000Z-210521T2300Z/
Northern Mobile Bay-Perdido Bay-Pensacola Bay System-
Western Choctawhatchee Bay-Eastern Choctawhatchee Bay-
349 PM CDT Thu May 20 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM CDT FRIDAY...

* WHAT...Southeast winds 18 to 25 kt with gusts up to 30 kt. 
  Waves 2 to 4 ft.

* WHERE...Eastern Choctawhatchee Bay, Western Choctawhatchee 
  Bay, Pensacola Bay System, Perdido Bay and Northern Mobile Bay.

* WHEN...Until 6 PM CDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

GMZ631-632-210500-
/O.CON.KMOB.SC.Y.0028.000000T0000Z-210521T2300Z/
Southern Mobile Bay-Mississippi Sound-
349 PM CDT Thu May 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CDT FRIDAY...

* WHAT...East to southeast winds 18 to 25 kt with gusts up to 35 
  kt. Waves 2 to 4 ft.

* WHERE...Mississippi Sound and Southern Mobile Bay.

* WHEN...Until 6 PM CDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
8 follow-up statements
884 
WHUS74 KMOB 210334
MWWMOB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Mobile AL
1034 PM CDT Thu May 20 2021

GMZ650-655-670-675-211200-
/O.CON.KMOB.GL.W.0004.000000T0000Z-210521T1700Z/
/O.CON.KMOB.SC.Y.0029.210521T1700Z-210522T2300Z/
Coastal waters from Pensacola FL to Pascagoula MS out 20 NM-
Coastal waters from Okaloosa Walton County Line FL to Pensacola
FL out 20 NM-
Waters from Pensacola FL to Pascagoula MS from 20 to 60 NM-
Waters from Okaloosa Walton County Line FL to Pensacola FL from
20 to 60 NM-
1034 PM CDT Thu May 20 2021

...GALE WARNING REMAINS IN EFFECT UNTIL NOON CDT FRIDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON FRIDAY TO
6 PM CDT SATURDAY...

* WHAT...For the Gale Warning, east to southeast winds 25 to 30 kt
  with frequent gusts to between 35 and 40 kt. Seas 7 to 11 ft. 
  For the Small Craft Advisory, east to southeast winds 18 to 25 
  kt with gusts up to 35 kt and seas 6 to 9 ft.

* WHERE...Coastal waters from Okaloosa Walton County Line FL to 
  Pascagoula MS out 60 NM.

* WHEN...For the Gale Warning, until noon CDT Friday. For the 
  Small Craft Advisory, from noon Friday to 6 PM CDT Saturday.

* IMPACTS...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>636-211200-
/O.CON.KMOB.SC.Y.0028.000000T0000Z-210521T2300Z/
Northern Mobile Bay-Southern Mobile Bay-Mississippi Sound-
Perdido Bay-Pensacola Bay System-Western Choctawhatchee Bay-
Eastern Choctawhatchee Bay-
1034 PM CDT Thu May 20 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CDT FRIDAY...

* WHAT...Southeast winds 18 to 23 kt with gusts up to 30 kt. 
  Waves 2 to 4 ft.

* WHERE...Eastern Choctawhatchee Bay, Western Choctawhatchee 
  Bay, Pensacola Bay System, Perdido Bay and Northern Mobile Bay.

* WHEN...Until 6 PM CDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
012 
WHUS74 KMOB 210834
MWWMOB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Mobile AL
334 AM CDT Fri May 21 2021

GMZ650-655-670-675-211700-
/O.CON.KMOB.GL.W.0004.000000T0000Z-210521T1700Z/
/O.CON.KMOB.SC.Y.0029.210521T1700Z-210522T2300Z/
Coastal waters from Pensacola FL to Pascagoula MS out 20 NM-
Coastal waters from Okaloosa Walton County Line FL to Pensacola
FL out 20 NM-
Waters from Pensacola FL to Pascagoula MS from 20 to 60 NM-
Waters from Okaloosa Walton County Line FL to Pensacola FL from
20 to 60 NM-
334 AM CDT Fri May 21 2021

...GALE WARNING REMAINS IN EFFECT UNTIL NOON CDT TODAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 6 PM
CDT SATURDAY...

* WHAT...For the Gale Warning, east to southeast winds 25 to 30 kt
  with frequent gusts between 35 and 40 kt. Seas 7 to 11 ft. For
  the Small Craft Advisory, east to southeast winds 18 to 23 kt
  with gusts up to 35 kt and seas 6 to 9 ft expected.

* WHERE...Waters from Pensacola FL to Pascagoula MS from 20 to 
  60 NM, Waters from Okaloosa Walton County Line FL to Pensacola 
  FL from 20 to 60 NM, Coastal waters from Pensacola FL to 
  Pascagoula MS out 20 NM and Coastal waters from Okaloosa 
  Walton County Line FL to Pensacola FL out 20 NM.

* WHEN...For the Gale Warning, until noon CDT today. For the 
  Small Craft Advisory, from noon today to 6 PM CDT Saturday.

* IMPACTS...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>636-211700-
/O.CON.KMOB.SC.Y.0028.000000T0000Z-210521T2300Z/
Northern Mobile Bay-Southern Mobile Bay-Mississippi Sound-
Perdido Bay-Pensacola Bay System-Western Choctawhatchee Bay-
Eastern Choctawhatchee Bay-
334 AM CDT Fri May 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CDT THIS
EVENING...

* WHAT...Southeast winds 18 to 23 kt with gusts up to 30 kt. Waves
  2 to 4 feet.

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

* WHEN...Until 6 PM CDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
279 
WHUS74 KMOB 211704
MWWMOB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Mobile AL
1204 PM CDT Fri May 21 2021

GMZ650-655-670-675-220115-
/O.EXP.KMOB.GL.W.0004.000000T0000Z-210521T1700Z/
/O.CON.KMOB.SC.Y.0029.000000T0000Z-210522T2300Z/
Coastal waters from Pensacola FL to Pascagoula MS out 20 NM-
Coastal waters from Okaloosa Walton County Line FL to Pensacola
FL out 20 NM-
Waters from Pensacola FL to Pascagoula MS from 20 to 60 NM-
Waters from Okaloosa Walton County Line FL to Pensacola FL from
20 to 60 NM-
1204 PM CDT Fri May 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CDT
SATURDAY...
...GALE WARNING HAS EXPIRED...

* WHAT...East winds 18 to 25 kt with gusts up to 30 kt and seas 7
  to 10 ft.

* WHERE...Waters from Okaloosa Walton County Line FL to Pascagoula
  MS out 60 NM.

* WHEN...This afternoon to 6 PM CDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

GMZ630>636-212300-
/O.CON.KMOB.SC.Y.0028.000000T0000Z-210521T2300Z/
Northern Mobile Bay-Southern Mobile Bay-Mississippi Sound-
Perdido Bay-Pensacola Bay System-Western Choctawhatchee Bay-
Eastern Choctawhatchee Bay-
1204 PM CDT Fri May 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CDT THIS
EVENING...

* WHAT...Southeast winds 18 to 23 kt with gusts up to 30 kt. 
  Waves 2 to 4 feet.

* WHERE...Coastal waters of Alabama and northwest Florida.

* WHEN...Until 6 PM CDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
724 
WHUS74 KMOB 212309
MWWMOB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Mobile AL
609 PM CDT Fri May 21 2021

GMZ631-632-220200-
/O.EXP.KMOB.SC.Y.0028.000000T0000Z-210521T2300Z/
/O.EXB.KMOB.SC.Y.0029.000000T0000Z-210522T0200Z/
Southern Mobile Bay-Mississippi Sound-
609 PM CDT Fri May 21 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM CDT THIS EVENING...

* WHAT...Southeast winds 18 to 23 kt with gusts up to 25 kt. 
  Waves 2 to 4 feet.

* WHERE...Southern Mobile Bay and Mississippi Sound.

* WHEN...Until 9 PM CDT this evening.

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

GMZ630-633>636-220015-
/O.EXP.KMOB.SC.Y.0028.000000T0000Z-210521T2300Z/
Northern Mobile Bay-Perdido Bay-Pensacola Bay System-
Western Choctawhatchee Bay-Eastern Choctawhatchee Bay-
609 PM CDT Fri May 21 2021

...SMALL CRAFT ADVISORY HAS EXPIRED...

$$

GMZ650-655-670-675-220800-
/O.CON.KMOB.SC.Y.0029.000000T0000Z-210522T2300Z/
Coastal waters from Pensacola FL to Pascagoula MS out 20 NM-
Coastal waters from Okaloosa Walton County Line FL to Pensacola
FL out 20 NM-
Waters from Pensacola FL to Pascagoula MS from 20 to 60 NM-
Waters from Okaloosa Walton County Line FL to Pensacola FL from
20 to 60 NM-
609 PM CDT Fri May 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CDT
SATURDAY...

* WHAT...East winds 18 to 25 kt with gusts up to 30 kt. Seas 7 to
  10 ft for 0-20NM waters, 10 to 14 ft for 0-60NM waters.

* WHERE...Coastal waters from Pensacola FL to Pascagoula MS out 20
  NM, Coastal waters from Okaloosa Walton County Line FL to
  Pensacola FL out 20 NM, Waters from Pensacola FL to Pascagoula
  MS from 20 to 60 NM, and Waters from Okaloosa Walton County 
  Line FL to Pensacola FL from 20 to 60 NM.

* WHEN...This afternoon to 6 PM CDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
656 
WHUS74 KMOB 220217
MWWMOB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Mobile AL
917 PM CDT Fri May 21 2021

GMZ631-632-220330-
/O.EXP.KMOB.SC.Y.0029.000000T0000Z-210522T0200Z/
Southern Mobile Bay-Mississippi Sound-
917 PM CDT Fri May 21 2021

...SMALL CRAFT ADVISORY HAS EXPIRED...

$$

GMZ650-655-670-675-221200-
/O.CON.KMOB.SC.Y.0029.000000T0000Z-210522T2300Z/
Coastal waters from Pensacola FL to Pascagoula MS out 20 NM-
Coastal waters from Okaloosa Walton County Line FL to Pensacola
FL out 20 NM-
Waters from Pensacola FL to Pascagoula MS from 20 to 60 NM-
Waters from Okaloosa Walton County Line FL to Pensacola FL from
20 to 60 NM-
917 PM CDT Fri May 21 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CDT
SATURDAY...

* WHAT...East winds 18 to 25 kt with gusts up to 30 kt. Seas 7 to
  10 ft for 0-20NM waters, 8 to 12 ft for 20-60NM waters.

* WHERE...Coastal waters from Pensacola FL to Pascagoula MS out 
  20 NM, Coastal waters from Okaloosa Walton County Line FL to 
  Pensacola FL out 20 NM, Waters from Pensacola FL to Pascagoula 
  MS from 20 to 60 NM, and Waters from Okaloosa Walton County 
  Line FL to Pensacola FL from 20 to 60 NM.

* WHEN...This afternoon to 6 PM CDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
110 
WHUS74 KMOB 220823
MWWMOB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Mobile AL
323 AM CDT Sat May 22 2021

GMZ650-655-670-675-221800-
/O.CON.KMOB.SC.Y.0029.000000T0000Z-210522T2300Z/
Coastal waters from Pensacola FL to Pascagoula MS out 20 NM-
Coastal waters from Okaloosa Walton County Line FL to Pensacola
FL out 20 NM-
Waters from Pensacola FL to Pascagoula MS from 20 to 60 NM-
Waters from Okaloosa Walton County Line FL to Pensacola FL from
20 to 60 NM-
323 AM CDT Sat May 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CDT THIS
EVENING...

* WHAT...East winds 18 to 23 kt and seas 5 to 10 ft.

* WHERE...Coastal waters from Pensacola FL to Pascagoula MS out 
  20 NM, Waters from Pensacola FL to Pascagoula MS from 20 to 60 
  NM, Coastal waters from Okaloosa Walton County Line FL to 
  Pensacola FL out 20 NM and Waters from Okaloosa Walton County 
  Line FL to Pensacola FL from 20 to 60 NM.

* WHEN...Until 6 PM CDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
253 
WHUS74 KMOB 221441
MWWMOB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Mobile AL
941 AM CDT Sat May 22 2021

GMZ650-655-670-675-222300-
/O.CON.KMOB.SC.Y.0029.000000T0000Z-210522T2300Z/
Coastal waters from Pensacola FL to Pascagoula MS out 20 NM-
Coastal waters from Okaloosa Walton County Line FL to Pensacola
FL out 20 NM-
Waters from Pensacola FL to Pascagoula MS from 20 to 60 NM-
Waters from Okaloosa Walton County Line FL to Pensacola FL from
20 to 60 NM-
941 AM CDT Sat May 22 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM CDT THIS
EVENING...

* WHAT...East winds 18 to 23 kt with gusts up to 25 kt. Seas 5 to
  7 feet near shore and 7 to 9 feet well offshore.

* WHERE...Coastal waters from Pensacola FL to Pascagoula MS out 
  20 NM, Waters from Pensacola FL to Pascagoula MS from 20 to 60 
  NM, Coastal waters from Okaloosa Walton County Line FL to 
  Pensacola FL out 20 NM and Waters from Okaloosa Walton County 
  Line FL to Pensacola FL from 20 to 60 NM.

* WHEN...Until 6 PM CDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
837 
WHUS74 KMOB 222255
MWWMOB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Mobile AL
555 PM CDT Sat May 22 2021

GMZ650-655-670-675-230000-
/O.EXP.KMOB.SC.Y.0029.000000T0000Z-210522T2300Z/
Coastal waters from Pensacola FL to Pascagoula MS out 20 NM-
Coastal waters from Okaloosa Walton County Line FL to Pensacola
FL out 20 NM-
Waters from Pensacola FL to Pascagoula MS from 20 to 60 NM-
Waters from Okaloosa Walton County Line FL to Pensacola FL from
20 to 60 NM-
555 PM CDT Sat May 22 2021

...SMALL CRAFT ADVISORY WILL EXPIRE AT 6 PM CDT THIS EVENING...

Winds and seas have generally dropped below Small Craft Advisory.
Both remain strong/high enough for small craft to continue to
exercise caution into the overnight hours.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 20, 3:49 PM CDTGale WarningMOB20 hr
May 20, 3:53 PM CDTWind AdvisoryMOBBaldwin, Mobile27 hr

Nearby

Small Craft Advisories in Alabama, 2021Every 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.