Alert archive / Florida / Small Craft Advisories in 2018

Small Craft Advisory 7, NWS Melbourne, FL

January 9, 2018

NWS Melbourne, FL issued this small craft advisory at Jan 9, 2018, 4:19 AM EST. It took effect at Jan 9, 2018, 10:00 AM EST. It was in force for 35 hr.

The area

The counties it named.

The facts

Issued
Jan 9, 2018, 4:19 AM EST (09:19 UTC)
In effect from
Jan 9, 2018, 10:00 AM EST
Expired
Jan 10, 2018, 8:31 PM EST
In force
35 hr
Issued by
NWS Melbourne, FL

The text

As transmitted.

792 
WHUS72 KMLB 090919
MWWMLB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Melbourne FL
419 AM EST Tue Jan 9 2018

AMZ570-572-101000-
/O.NEW.KMLB.SC.Y.0007.180109T1500Z-180111T0900Z/
Flagler Beach to Volusia-Brevard County Line 20-60 nm-Volusia-
Brevard County Line to Sebastian Inlet 20-60 nm-
419 AM EST Tue Jan 9 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 4 AM
EST THURSDAY...

The National Weather Service in Melbourne has issued a Small
Craft Advisory, which is in effect from 10 AM this morning to
4 AM EST Thursday. 

* WINDS...East winds 15 to 20 knots. 

* WAVES/SEAS...Seas building to 7 to 8 feet today through tonight, 
  and up to 9 feet into Wednesday. 
  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 20 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$
3 follow-up statements
314 
WHUS72 KMLB 100910
MWWMLB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Melbourne FL
410 AM EST Wed Jan 10 2018

AMZ550-552-110900-
/O.EXB.KMLB.SC.Y.0007.180110T0910Z-180111T0900Z/
Flagler Beach to Volusia-Brevard County Line 0-20 nm-Volusia-
Brevard County Line to Sebastian Inlet 0-20 nm-
410 AM EST Wed Jan 10 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EST THURSDAY...

The National Weather Service in Melbourne has issued a Small
Craft Advisory, which is in effect until 4 AM EST Thursday. 

* WINDS...East winds 15 to 20 knots.

* WAVES/SEAS...Seas 7 feet today into tonight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 20 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

AMZ570-572-110900-
/O.EXT.KMLB.SC.Y.0007.000000T0000Z-180111T2100Z/
Flagler Beach to Volusia-Brevard County Line 20-60 nm-Volusia-
Brevard County Line to Sebastian Inlet 20-60 nm-
410 AM EST Wed Jan 10 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM EST THURSDAY...

* WINDS...East winds 20 knots today decreasing 10 to 15 knots
  tonight and Thursday and becoming southeast.

* WAVES/SEAS...Seas 7 to 9 feet today subsiding 6 to 7 feet
  Thursday.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 20 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$
325 
WHUS72 KMLB 101531
MWWMLB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Melbourne FL
1031 AM EST Wed Jan 10 2018

AMZ552-101645-
/O.CAN.KMLB.SC.Y.0007.000000T0000Z-180111T0900Z/
Volusia-Brevard County Line to Sebastian Inlet 0-20 nm-
1031 AM EST Wed Jan 10 2018

...SMALL CRAFT ADVISORY IS CANCELLED...

The National Weather Service in Melbourne has cancelled the Small
Craft Advisory. 

East to southeast winds had diminished to 10 to 15 knots, but seas
remained 4 to 6 feet, so small craft operators should still 
exercise caution into this evening.

$$

AMZ550-110900-
/O.CON.KMLB.SC.Y.0007.000000T0000Z-180111T0900Z/
Flagler Beach to Volusia-Brevard County Line 0-20 nm-
1031 AM EST Wed Jan 10 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST
THURSDAY...

* WINDS...East winds 15 to 20 knots.

* WAVES/SEAS...Seas 7 feet into tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 20 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

AMZ570-572-111000-
/O.CON.KMLB.SC.Y.0007.000000T0000Z-180111T2100Z/
Flagler Beach to Volusia-Brevard County Line 20-60 nm-Volusia-
Brevard County Line to Sebastian Inlet 20-60 nm-
1031 AM EST Wed Jan 10 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM EST
THURSDAY...

* WINDS...East winds 20 knots today decreasing 10 to 15 knots 
  tonight and Thursday and becoming southeast. 

* WAVES/SEAS...Seas 7 to 9 feet today subsiding 6 to 7 feet 
  Thursday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 20 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$
698 
WHUS72 KMLB 110131
MWWMLB

URGENT - MARINE WEATHER MESSAGE
National Weather Service Melbourne FL
831 PM EST Wed Jan 10 2018

AMZ570-572-111945-
/O.CAN.KMLB.SC.Y.0007.000000T0000Z-180111T2100Z/
/O.NEW.KMLB.SW.Y.0001.180111T0131Z-180111T2100Z/
Flagler Beach to Volusia-Brevard County Line 20-60 nm-Volusia-
Brevard County Line to Sebastian Inlet 20-60 nm-
831 PM EST Wed Jan 10 2018

...SMALL CRAFT ADVISORY FOR HAZARDOUS SEAS IN EFFECT UNTIL 4 PM
EST THURSDAY...

The National Weather Service in Melbourne has issued a Small
Craft Advisory for hazardous seas, which is in effect until 4 PM
EST Thursday. 

* WAVES/SEAS...Seas 7 to 8 feet tonight subsiding 6 to 7 feet 
  Thursday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory for hazardous seas means that waves are
expected to be hazardous to small craft. Mariners should avoid
shoaling areas. Long period swell can sharpen into large breaking
waves in shoaling areas. It is not unusual for waves to break
much farther from shoaling areas than is normally experienced.
Remember...breaking waves can easily capsize even larger vessels.

&&

$$

AMZ550-110245-
/O.CAN.KMLB.SC.Y.0007.000000T0000Z-180111T0900Z/
Flagler Beach to Volusia-Brevard County Line 0-20 nm-
831 PM EST Wed Jan 10 2018

...SMALL CRAFT ADVISORY IS CANCELLED...

The National Weather Service in Melbourne has cancelled the Small
Craft Advisory. 

Winds and seas have fallen below advisory criteria, but seas of 4
to 6 feet will remain possible, and therefore small craft should 
continue to exercise caution.

$$

What forecasters said that day

The local office's own words before this small craft advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Melbourne, FL wrote its last area forecast discussion before this small craft advisory went out at Jan 8, 9:13 PM EST, 7 hours 6 minutes earlier.

Area forecast discussion, Jan 8, 9:13 PM EST, 7 hours 6 minutes before
East Central Florida Forecast Discussion
National Weather Service Melbourne FL
913 PM EST Mon Jan 8 2018

.DISCUSSION...
Current...Winds through a deep layer continue to veer largely in
response to upr low apchg from the gulf. A more organized batch of
marine showers are apchg the southern coast attm with potential to
exhibit a lightning strike or two into the overnight hours. Ltst
HRRR guid indicates sct marine based showers and possibly an
isolated storm apchg the coast for the remainder of the night over
the Treasure cst and spreading nwd into early Tue morning as
upr low and attendant unstable conditions develop during the day.
With the fcst update wl add a fog mention for the areas around
Volusia co currently exhibiting fog coverage, with a chance of
thunder over the southern marine segments.  Other parameters are in
good shape.

.prev disc...

Tonight-Tuesday...Cutoff mid-upper level low center will drop from
SELA to offshore the SWFL coast by late tomorrow, placing ECFL in an
increasingly favorable divergent upper level pattern, while deep
layer moisture continues to increase in SE low level flow, as winds
aloft back to SW and south. Mid-high cloud canopy will continue to
stream overhead, with moist/convergent low level flow supporting
showers overnight, mainly along the coast. Increase in moisture/jet
forced ascent will lead to higher (mainly 40-50 pct with 60 far SE)
rain chances areawide. Weakening of the mid level cap plus the cold
temps aloft (-15C at H50) could support an isolated afternoon TS.

For temps, another mild to warm night in store with mins ranging
from the L60s along the coast (M60s barrier islands to the U50s Nw
of I-4. Maxes Tuesday in the M-U70s.

&&

.AVIATION...Continued VFR to high end MVFR-VFR CIGs BKN025-050
tonight. LCL BR psbl FM DAB-MCO-LEE early Tue. Better chance for
showers/TS with heavier precip and lower LCL VSBY reductions (MVFR-
IFR). CIGs mainly BKN025-035.

&&

.MARINE...
Tonight-Tuesday...Winds and seas continue to diminish tonight
and tomorrow as the local pressure gradient weakens. However
peak winds/seas of around 15/6FT will likely necessitate Cautionary
Statement beyond 20NM.

&&

.MLB WATCHES/WARNINGS/ADVISORIES...
FL...None.
AM...Small Craft Advisory until 10 PM EST this evening for Sebastian
     Inlet to Jupiter Inlet 0-20 nm-Volusia-Brevard County Line to
     Jupiter Inlet 20-60 nm.
     Dense fog advisory until 12 AM EST this evening for 0-20 nm-
     Volusia.

&&

JP/JS
Hazardous weather outlook, Jan 8, 7:31 PM EST, 8 hours 48 minutes before
Hazardous Weather Outlook
National Weather Service Melbourne FL
731 PM EST Mon Jan 8 2018

AMZ550-552-555-570-572-575-FLZ041-044>047-053-054-058-059-064-141-
144-147-091245-
Flagler Beach to Volusia-Brevard County Line 0-20 nm-Volusia-
Brevard County Line to Sebastian Inlet 0-20 nm-
Sebastian Inlet to Jupiter Inlet 0-20 nm-Flagler Beach to Volusia-
Brevard County Line 20-60 nm-Volusia-
Brevard County Line to Sebastian Inlet 20-60 nm-
Sebastian Inlet to Jupiter Inlet 20-60 nm-Inland Volusia County-
Northern Lake County-Orange-Seminole-Southern Brevard County-
Osceola-Indian River-Okeechobee-St. Lucie-Martin-
Coastal Volusia County-Southern Lake County-
Northern Brevard County-
731 PM EST Mon Jan 8 2018

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST CENTRAL FLORIDA.

.DAY ONE...TONIGHT.

.DENSE FOG/SMOKE IMPACT...
Areas of dense sea fog have developed along the coast of
Volusia County. Visibilities may be reduced to one half
mile in some locations. Use caution if driving near the
coast and be sure to use low beam headlights.

.WIND AND SEA IMPACT...
A Small Craft Advisory remains in effect for Gulf Stream
waters through 10pm. Hazardous boating conditions remain
along the Treasure Coast with seas 6 to 8 feet and southeast
winds at 15 to 20 knots.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.
Lingering seas up to 6 feet offshore will continue poor boating
conditions Tuesday, with seas potentially increasing to more
hazardous levels into mid week. A trough of low pressure dropping
southeast into the eastern Gulf of Mexico will bring a chance of
showers and slight chance of afternoon lightning storms to the
area Tuesday.

.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today.

Smith

The office that day

Everything else NWS Melbourne, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 9, 5:07 PM ESTAreal Flood AdvisoryMLBVolusia113 min

Nearby

Small Craft Advisories in Florida, 2018Every small craft advisory in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.