Small Craft Advisory 34, NWS Mobile, AL

238 
WHUS74 KMOB 090340
MWWMOB

URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE MOBILE AL
1040 PM CDT FRI APR 8 2016

...SMALL CRAFT ADVISORY NOW IN EFFECT THROUGH 7 AM CDT SATURDAY FOR
THE OPEN ALABAMA AND NORTHWEST FLORIDA GULF WATERS...

.A STRONG OFFSHORE FLOW IS FORECAST TO PERSIST TONIGHT AS A SURGE OF COOLER
AIR MOVES SOUTHWARD OUT OVER THE GULF WATERS. THE HIGHER SEAS LOOK TO
OCCUR BEYOND 20 NAUTICAL MILES OUT GIVEN THE NORTHERLY FETCH.

GMZ650-655-670-675-091145-
/O.CON.KMOB.SC.Y.0034.000000T0000Z-160409T1200Z/
COASTAL WATERS FROM PENSACOLA FL TO PASCAGOULA MS OUT 20 NM-
COASTAL WATERS FROM DESTIN TO PENSACOLA FL OUT 20 NM-
WATERS FROM PENSACOLA FL TO PASCAGOULA MS FROM 20 TO 60 NM-
WATERS FROM DESTIN TO PENSACOLA FL FROM 20 TO 60 NM-
1040 PM CDT FRI APR 8 2016

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT
SATURDAY...

* WINDS...NORTHWEST TO NORTH INCREASING TO 18 TO 23 KNOTS WITH 
  FREQUENT HIGHER GUSTS. 

* SEAS...2 TO 4 FEET NEAR SHORE AND 4 TO 6 FEET WELL OFFSHORE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SMALL CRAFT ADVISORY MEANS THAT WIND SPEEDS OR FREQUENT GUSTS
OF 20 TO 33 KNOTS AND/OR SEAS OF 7 FEET OR HIGHER ARE EXPECTED TO
PRODUCE HAZARDOUS WAVE CONDITIONS TO SMALL CRAFT. INEXPERIENCED
MARINERS...ESPECIALLY THOSE OPERATING SMALLER VESSELS SHOULD
AVOID NAVIGATING IN THESE CONDITIONS.

&&

$$

194 
WHUS74 KMOB 091138 AAA
MWWMOB

URGENT - MARINE WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE MOBILE AL
638 AM CDT SAT APR 9 2016

...SMALL CRAFT ADVISORY FOR THE GULF WATERS OF ALABAMA AND NORTHWEST
FLORIDA OUT TO 60 NM HAS BEEN CANCELLED...

.NORTHERLY WINDS WILL CONTINUE TO DIMINISH THROUGH THIS MORNING
THEN SHIFT SOUTH TO SOUTHWEST DURING THE AFTERNOON.

GMZ650-655-670-675-091245-
/O.CAN.KMOB.SC.Y.0034.000000T0000Z-160409T1200Z/
COASTAL WATERS FROM PENSACOLA FL TO PASCAGOULA MS OUT 20 NM-
COASTAL WATERS FROM DESTIN TO PENSACOLA FL OUT 20 NM-
WATERS FROM PENSACOLA FL TO PASCAGOULA MS FROM 20 TO 60 NM-
WATERS FROM DESTIN TO PENSACOLA FL FROM 20 TO 60 NM-
638 AM CDT SAT APR 9 2016

...SMALL CRAFT ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MOBILE HAS CANCELLED THE SMALL
CRAFT ADVISORY. 



$$

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE MOBILE AL
1248 PM CDT FRI APR 8 2016

.DISCUSSION...UPDATED FOR LATEST AVIATION DISCUSSION BELOW.

&&

.AVIATION...
18Z ISSUANCE...VFR CONDITIONS FORECAST. NORTH TO NORTHWEST WINDS
AROUND 10 KNOTS WITH OCCASIONAL HIGHER GUSTS THROUGH THE AFTERNOON.
WINDS BECOME LIGHT AFTER 09.00Z. /10

&&

.PREV DISCUSSION... /ISSUED 1035 AM CDT FRI APR 8 2016/

DISCUSSION...SEE UPDATED INFORMATION FOR LAND AND MARINE AREAS BELOW.

UPDATE...SIMILAR TO THURSDAY...UPPER AIR MAPS CONTINUE TO SHOW A
LONG WAVE TROF POSITIONED OVER THE EASTERN US. SURFACE COLD FRONT HAS
MOVED SOUTH OF THE LOCAL AREA. NO CHANGES MADE TO SENSIBLE WEATHER
ELEMENTS. A DRY AIRMASS FILTERS SOUTHWARD TODAY WITH A NICE
SPRINGTIME DAY. DAYTIME HIGHS RANGING FROM THE LOWER TO MID 70S. /10

MARINE...DATA COLLECTION PLATFORMS INDICATED A BRIEF PERIOD OF
STRONG OFFSHORE FLOW THIS MORNING FOLLOWING THE FRONTAL PASSAGE. BUT
AS FRONT MOVES FURTHER SOUTH AND GRADIENT RELAXES...SO DOES THE
WINDS. EVEN SO...WILL CARRY EXERCISE CAUTION HEADLINES FOR THE OPEN
GULF WATERS TODAY AND TONIGHT WHERE MODERATE OFFSHORE FLOW LINGERS.
LATEST GRIDDED FORECASTS INDICATE SOME POTENTIAL FOR NORTHERLY FLOW
TO INCREASE TO ADVISORY LEVELS LATE TONIGHT MAINLY BEYOND 20 NAUTICAL
MILES OUT. WILL AWAIT NEW WEATHER MODEL DATA BEFORE MAKING A DECISION
TO INTRODUCE A NEW ADVISORY FOR THESE AREAS. NO OTHER CHANGES MADE AT
THIS TIME. /10

PREV DISCUSSION... /ISSUED 640 AM CDT FRI APR 8 2016/

DISCUSSION...UPDATED FOR LATEST AVIATION DISCUSSION BELOW.

AVIATION...
12Z ISSUANCE...VFR CONDITIONS WILL OCCUR OVER THE NEXT 24 HOURS WITH
NORTH-NORTHWEST WIND AROUND 10 KNOTS AND A FEW CIRRUS PASSING WELL
OVERHEAD. /22

PREV DISCUSSION... /ISSUED 445 AM CDT FRI APR 8 2016/

NEAR TERM /NOW THROUGH FRIDAY NIGHT/...A DEEP DRY WEST-NORTHWEST
WIND FLOW ALOFT WILL BE REINFORCED TODAY AND TONIGHT AS AN UPPER
LONGWAVE TROUGH OVER EASTERN NORTH AMERICA SHIFTS EASTWARD. AT THE
SURFACE...A NORTH-SOUTH ORIENTATED RIDGE OF HIGH PRESSURE ACROSS THE
PLAINS OF CANADA AND THE U.S. WILL SHIFT EAST OVER THE MISSISSIPPI
RIVER VALLEY BY LATE TONIGHT. AS A RESULT...LARGE SCALE SUBSIDENCE
WILL KEEP CLEAR TO MOSTLY CLEAR SKIES OVER THE REGION...AND IT WILL
REMAIN DRY THROUGH THE PERIOD.

HIGH TEMPERATURES TODAY WILL RANGE FROM 72 TO 77 DEGREES. LOW
TEMPERATURES TONIGHT WILL RANGE FROM 39 TO 44 DEGREES INLAND
AREAS...AND FROM 45 TO 50 DEGREES ALONG THE IMMEDIATE COASTAL
SECTIONS. LOWER 50S WILL OCCUR AT THE BEACHES. /22

SHORT TERM /SATURDAY THROUGH SUNDAY NIGHT/...A SURFACE RIDGE OF
HIGH PRESSURE WILL BUILD EASTWARD ACROSS THE OHIO/TENNESSEE VALLEY
AND THE CENTRAL GULF COAST REGION ON SATURDAY WHILE A DRY NORTHWEST
TO ZONAL FLOW PATTERN ALOFT REMAINS PREVALENT ACROSS OUR REGION.
DRY WEATHER WILL CONTINUE SATURDAY WITH A GRADUAL INCREASE IN HIGH
LEVEL CLOUD COVER THROUGH THE DAY. HIGH TEMPERATURES SATURDAY
AFTERNOON WILL RANGE FROM AROUND 70 TO THE MID 70S. A WEAK SHORTWAVE
IMPULSE WILL MOVE ACROSS THE REGION SATURDAY NIGHT. THERE WILL BE A
MODEST INCREASE IN LAYER MOISTURE WITH THIS PASSING FEATURE...AND
WHILE AN ISOLATED RAIN SHOWER MAY BE POSSIBLE...THE PROBABILITY FOR
MEASURABLE RAINFALL SHOULD OVERALL REMAIN WELL BELOW 20 PERCENT.
SURFACE HIGH PRESSURE WILL OTHERWISE BUILD TOWARD THE EASTERN U.S.
SATURDAY NIGHT...WITH LIGHT EAST TO SOUTHEAST FLOW RETURNING ACROSS
OUR REGION. ANOTHER COOL NIGHT IS EXPECTED UNDER THE INFLUENCE OF THE
RIDGE AXIS WITH LOWS IN THE MID 40S TO AROUND 50 OVER INTERIOR AREAS
TO THE MID 50S NEAR THE COAST. SHORTWAVE RIDGING ALOFT SHOULD BUILD
EASTWARD ACROSS THE CENTRAL GULF COAST REGION SUNDAY INTO SUNDAY
NIGHT WITH MOSTLY CLEAR SKIES AND DRY CONDITIONS EXPECTED. HIGHS
SUNDAY SHOULD ONCE AGAIN RANGE FROM THE LOWER TO MID 70S INTERIOR AND
AROUND 70 NEAR THE COAST. LOWS SUNDAY NIGHT ARE FORECAST TO RANGE
FROM THE UPPER 40S TO THE MID 50S INLAND...WITH UPPER 50S AND LOWER
60S NEAR THE IMMEDIATE COAST. /21

LONG TERM /MONDAY THROUGH THURSDAY/...AN UPPER LEVEL TROUGH LOCATED
IN THE VICINITY OF THE TX PANHANDLE MONDAY WILL TRANSLATE EASTWARD
TOWARD THE LOWER MISSISSIPPI AND TENNESSEE VALLEY MONDAY NIGHT AND
TUESDAY WHILE A LARGER SCALE TROUGH MEANWHILE CARVES ACROSS THE GREAT
LAKES AND OHIO VALLEY REGION. A COLD FRONT WILL PUSH SOUTHWARD INTO
NORTHERN PORTIONS OF MS/AL MONDAY NIGHT AND EVENTUALLY BECOME
ORIENTED ACROSS THE GULF COAST AND SOUTHEASTERN STATES DURING THE DAY
TUESDAY. DEEP LAYER MOISTURE WILL INCREASE ALONG THE FRONTAL ZONE AS
THE SHORTWAVE TROUGH APPROACHES MONDAY NIGHT AND TUESDAY...AND EXPECT
SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ACROSS OUR FORECAST
AREA DURING THIS TIME FRAME...WITH THE BEST COVERAGE FOCUSED OVER
INTERIOR PORTIONS OF SOUTHEAST MS AND SOUTHWEST/SOUTH CENTRAL AL.
WILL MONITOR FOR POTENTIAL OF A FEW LOCALLY STRONG STORMS MONDAY
NIGHT AND TUESDAY GIVEN LOCALIZED MLCAPE VALUES OF 500-750 J/KG AND
RELATIVELY STRONG DEEP LAYER SHEAR...THOUGH LOW LEVEL WIND FIELDS
CURRENTLY LOOK RATHER UNIMPRESSIVE. ANOTHER SHORTWAVE TROUGH WILL
PUSH EASTWARD ACROSS THE GULF COAST REGION WEDNESDAY AND WEDNESDAY
NIGHT...BRINGING THE POTENTIAL OF ANOTHER ROUND OF SHOWERS/STORMS TO
OUR FORECAST AREA. RAIN CHANCES LIKELY DECREASE LATE IN THE WEEK WITH
DRIER NORTHWEST FLOW ALOFT RETURNING TO THE REGION. HIGHS EACH DAY
LOOK TO RANGE IN THE 70S WITH OVERNIGHT LOWS MOSTLY IN THE
50S...EXCEPT 60S ON TUESDAY MORNING. /21

MARINE...A COLD FRONT PASSING THROUGH THE REGION EARLY THIS MORNING
WILL BRING A BRIEF PERIOD OF STRONG NORTH WINDS TO THE AREA THROUGH
AROUND 10 AM. A SURFACE RIDGE OF HIGH PRESSURE OVER THE WESTERN GULF
OF MEXICO WILL MOVE EAST ACROSS THE AREA ON SATURDAY AND OVER THE
WESTERN ATLANTIC AND EASTERN GULF SUNDAY AND MONDAY. THIS WILL ALLOW
WINDS TO TURN BACK TO THE SOUTHEAST AND STRENGTHEN TO MODERATE EARLY
NEXT WEEK. CHANCES OF SHOWERS AND STORMS TREND HIGHER MONDAY NIGHT
INTO TUESDAY. /22

&&

.MOB WATCHES/WARNINGS/ADVISORIES...
AL...NONE.
FL...NONE.
MS...NONE.
GM...NONE.
&&

THIS PRODUCT IS ALSO AVAILABLE ON THE WEB AT:
HTTP://WEATHER.GOV/MOB

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MOBILE AL
530 AM CDT FRI APR 8 2016

ALZ051>060-261>266-FLZ201>206-MSZ067-075-076-078-079-091030-
CHOCTAW-WASHINGTON-CLARKE-WILCOX-MONROE-CONECUH-BUTLER-CRENSHAW-
ESCAMBIA-COVINGTON-MOBILE INLAND-BALDWIN INLAND-MOBILE CENTRAL-
BALDWIN CENTRAL-MOBILE COASTAL-BALDWIN COASTAL-ESCAMBIA INLAND-
ESCAMBIA COASTAL-SANTA ROSA INLAND-SANTA ROSA COASTAL-
OKALOOSA INLAND-OKALOOSA COASTAL-WAYNE-PERRY-GREENE-STONE-GEORGE-
530 AM CDT FRI APR 8 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTH CENTRAL
ALABAMA...SOUTHWEST ALABAMA...NORTHWEST FLORIDA AND SOUTHEAST
MISSISSIPPI.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SHOWERS AND THUNDERSTORMS WILL INCREASE IN COVERAGE ACROSS THE REGION
LATE MONDAY AND TUESDAY. THE PROBABILITY FOR WIDESPREAD HAZARDOUS
WEATHER REMAINS LOW AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

ACTIVATION OF SKYWARN SEVERE STORM SPOTTER NETWORKS IS NOT EXPECTED
THROUGH THURSDAY.

GMZ630>635-650-655-670-675-091030-
NORTHERN MOBILE BAY-SOUTHERN MOBILE BAY-MISSISSIPPI SOUND-
PERDIDO BAY-PENSACOLA BAY SYSTEM-CHOCTAWHATCHEE BAY-
COASTAL WATERS FROM PENSACOLA FL TO PASCAGOULA MS OUT 20 NM-
COASTAL WATERS FROM DESTIN TO PENSACOLA FL OUT 20 NM-
WATERS FROM PENSACOLA FL TO PASCAGOULA MS FROM 20 TO 60 NM-
WATERS FROM DESTIN TO PENSACOLA FL FROM 20 TO 60 NM-
530 AM CDT FRI APR 8 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE COASTAL WATERS
OF ALABAMA AND NORTHWEST FLORIDA AND THE COASTAL WATERS OF ALABAMA
AND NORTHWEST FLORIDA.

.DAY ONE...TODAY AND TONIGHT

A STRONG NORTH WIND FLOW WILL BRING HAZARDOUS CONDITIONS FOR SMALL
CRAFT OVER THE OFFSHORE WATERS EARLY THIS MORNING AND AGAIN LATE
TONIGHT.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

HAZARDOUS CONDITIONS FOR SMALL CRAFT WILL AGAIN BE POSSIBLE SUNDAY
THROUGH TUESDAY.