Special Weather Statement, NWS Miami, FL

Area Forecast Discussion
National Weather Service Miami FL
400 PM EDT Tue Apr 10 2018

...WET WEATHER CONTINUES TONIGHT BEFORE DRY WEATHER FOR LATE THIS WEEK...
...RIP CURRENT THREAT INCREASES LATE THIS WEEK FOR EAST COAST BEACHES...

.DISCUSSION...
A frontal boundary located over North Central Florida will remain
nearly stationary this evening, as a weak low pressure moves along
the boundary from the Gulf of Mexico into the Western Atlantic
Waters. The low will then move further northeast into the
Atlantic waters tonight allowing for the frontal boundary to move
southward through South Florida and into the Florida Keys by
Wednesday morning.

This will allow for the ongoing showers and thunderstorms over the
northern areas of South Florida to move east into the Atlantic
waters this evening. However, another area of showers and
thunderstorms over the eastern Gulf of Mexico will move eastward
into South Central Florida ahead of the front leading to another
round of showers and thunderstorms over the Lake Okeechobee region
late tonight tapering down to isolated coverage south of
Alligator alley. Therefore, a chance of showers and a few
thunderstorms will remain in the forecast for tonight over the
northern areas to a slight chance of showers over the southern
areas of South Florida.

The front will stall out over the Florida Keys on Wednesday, as
high pressure moves from the Central United States into the
Southeastern United States. This will allow for a northern wind
flow along with some drier air to work into the South Florida
from the north. Therefore, the weather should remain mostly dry
across the area except for a few showers for the east coast metro
areas.

The high will continue to move east into the Western Atlantic
Waters late this week leading to a more easterly wind flow along
keeping the dry air in place. Therefore, the weather will remain
dry over South Florida late this week.

.EXTENDED FORECAST...
The high will move further east into the Atlantic waters this
weekend, as a trough of low pressure develops over the Central
United States and moves east into the Tennessee Valley. This
should allow for a low pressure system to develop over Central
Plain States and moves northeast into the Great Lakes, as a cold
front associated with the low moves east southeast into the
Florida Peninsula by end of the weekend.

The winds will should become southerly over South Florida this
weekend ahead of the front bringing in tropical moisture to the
area. This in turn will allow for scattered showers and some
thunderstorms for the second half of the weekend.

&&

.MARINE...
The winds will remain westerly at 10 to 15 knots tonight over
South Florida waters ahead of the frontal boundary, before going
northerly at 15 to 20 knots on Wednesday behind the frontal
boundary. The winds will then swing to a easterly direction late
this week with speeds decreasing to 10 to 15 knots.

The seas will be less then 5 feet tonight before increasing to 5
to 8 feet over the Gulf Stream by Wednesday afternoon into
Wednesday night. The Atlantic seas will then slowly decrease to 5
feet or less by Thursday night. Therefore, the SCA will remain in
effect for the Atlantic and Biscayne Bay waters for Wednesday and
Wednesday night.

The threat of rip currents will also increase along the east coast
beaches late this week due to the easterly winds setting up along
the coast.

&&

.PRELIMINARY POINT TEMPS/POPS...
West Palm Beach  69  80  68  80 /  40  20  10  10
Fort Lauderdale  71  82  70  81 /  30  20  20  10
Miami            72  83  69  82 /  20  20  10  10
Naples           69  84  63  85 /  50  10   0  10

&&

.MFL WATCHES/WARNINGS/ADVISORIES...
FL...None.
AM...Small Craft Advisory from 5 AM Wednesday to 2 AM EDT Friday for
     AMZ630-650-651-670-671.

GM...None.
&&

DISCUSSION...54/BNB
MARINE...54/BNB
BEACH FORECAST...54/BNB

Hazardous Weather Outlook for South Florida
National Weather Service Miami FL
330 PM EDT Tue Apr 10 2018

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
110315-
Lake Okeechobee-Biscayne Bay-
Coastal waters from Jupiter Inlet to Deerfield Beach FL out 20 NM-
Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM-
Waters from Jupiter Inlet to Deerfield Beach FL from 20 to 60 NM-
Waters from Deerfield Beach to Ocean Reef FL from 20 to 60 NM
excluding the territorial waters of Bahamas-Glades-Hendry-
Inland Palm Beach-Metro Palm Beach-Coastal Collier-Inland Collier-
Inland Broward-Metro Broward-Inland Miami-Dade-Metro Miami-Dade-
Mainland Monroe-Coastal Palm Beach-Coastal Broward-Coastal Miami-
Dade-Far South Miami-Dade-
Coastal waters from Chokoloskee to Bonita Beach FL out 20 NM-
Coastal waters from East Cape Sable to Chokoloskee FL out 20 NM-
Waters from Chokoloskee to Bonita Beach FL from 20 to 60 NM-
330 PM EDT Tue Apr 10 2018

...MARGINAL RISK OF SEVERE THUNDERSTORMS PALM BEACH COUNTY...
...STRONG THUNDERSTORMS POSSIBLE LAKE OKEECHOBEE TO BROWARD REGION...
...MODERATE RISK OF RIP CURRENTS PALM BEACH COUNTY BEACHES...

This hazardous weather outlook is for South Florida.

.DAY ONE...THIS AFTERNOON AND TONIGHT

Rip currents: There is a moderate risk of rip currents on Palm
Beach County beaches.

Thunderstorms: Scattered thunderstorms are possible this afternoon,
especially over Palm Beach County. Frequent cloud to ground lightning
is the primary threat, but some thunderstorms may become strong and
produce gusty winds and perhaps small hail. There is a marginal risk
of severe thunderstorms over the Lake Okeechobee region.

Waterspouts: Waterspouts are possible in thunderstorms on Lake
Okeechobee and Atlantic waters off Palm Beach County.

Wind: Strong thunderstorms are possible this afternoon over
northeast portions of South Florida, with wind gusts in excess of 50
mph. There is a marginal risk of severe thunderstorms over the Lake
Okeechobee region, where some thunderstorms could produce damaging
60 mph wind gusts. However strong wind gusts are also possible
elsewhere across portions of Broward.

Hail: The strongest thunderstorms this afternoon across the Lake
Okeechobee, Palm Beach, and Broward region could also produce at
least small hail. There is a marginal risk of severe thunderstorms
over the Lake Okeechobee region, where some thunderstorms could
produce hail up to the size of quarters.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

There is a chance of thunderstorms over eastern sections of South
Florida Wednesday, mainly early in the day. Cloud to ground lightning
is the primary threat. Additional thunderstorms are possible this
weekend and Monday.

Hazardous marine conditions due to gusty northerly winds are possible
on Atlantic waters Wednesday, and a Small Craft Advisory may be
necessary. Additional hazardous conditions are possible late Saturday
through Monday. An enhanced risk of rip currents may exist on
Atlantic beaches for the rest of the week.

.SPOTTER INFORMATION STATEMENT...

Widespread spotter activation is not anticipated, however individual
spotters are encouraged to report high wind and hail to the National
Weather Service forecast office in Miami.

For more information...visit the National Weather Service in
Miami website at www.weather.gov/miami.

Special Weather Statement
National Weather Service Miami FL
225 PM EDT TUE APR 10 2018

FLZ068-072-168-172-101915-
Coastal Broward County FL-Coastal Palm Beach County FL-
Metro Broward County FL-Metro Palm Beach County FL-
225 PM EDT TUE APR 10 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN BROWARD COUNTY UNTIL
315 PM EDT...

* At 225 PM EDT, National Weather Service meteorologists were
  tracking strong thunderstorms along a line extending from Hillsboro
  Beach to Palm Aire. Movement was east at 15 mph.

* Small hail and wind gusts up to 50 mph will be possible with these
  storms.

* Locations impacted include...
  Fort Lauderdale, Pompano Beach, Boca Raton, Deerfield Beach,
  Margate, Lighthouse Point, Lauderdale-By-The-Sea, Coconut Creek,
  Oakland Park, North Lauderdale, Hillsboro Beach, Sea Ranch Lakes,
  Palm Aire, Broadview-Pompano Park, Boca Del Mar, North Pompano
  Beach, Terra Mar, Pompano Beach Airport and North Andrews Gardens.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Miami on Facebook and
Twitter.

&&

LAT...LON 2638 7995 2618 8004 2621 8024 2637 8010
TIME...MOT...LOC 1825Z 289DEG 11KT 2630 8008 2623 8018

ALM

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Special Weather Statement
National Weather Service Miami FL
304 PM EDT TUE APR 10 2018

FLZ067-068-168-102000-
Coastal Palm Beach County FL-Inland Palm Beach County FL-
Metro Palm Beach County FL-
304 PM EDT TUE APR 10 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN PALM BEACH COUNTY
UNTIL 400 PM EDT...

* At 302 PM EDT, National Weather Service meteorologists were
  tracking a strong thunderstorm 11 miles northwest of Lion Country
  Safari Park, or 11 miles south of Indiantown, moving east at 60
  mph. Additional cells are propagating southeastward towards the
  West Palm Beach metro areas.

* Small hail and wind gusts of 50 to 55 mph will be possible with
  this storm.

* Locations impacted include...
  West Palm Beach, Wellington, Jupiter, Palm Beach Gardens, Lake
  Worth, Riviera Beach, Belle Glade, Palm Beach, Tequesta, Juno
  Beach, Greenacres, Royal Palm Beach, Palm Springs, North Palm
  Beach, Lake Park, Haverhill, Cloud Lake, Palm Beach International
  Airport, Port Of Palm Beach and Golden Lakes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These winds can down small tree limbs and branches, and blow around
unsecured small objects. Seek shelter in a safe building until the
storm passes.

&&

LAT...LON 2664 8003 2663 8066 2684 8058 2696 8059
      2696 8008 2690 8004
TIME...MOT...LOC 1902Z 258DEG 51KT 2686 8043

AR

Special Weather Statement
National Weather Service Miami FL
323 PM EDT TUE APR 10 2018

FLZ067-068-071-072-168-172-102030-
Inland Broward County FL-Coastal Broward County FL-
Coastal Palm Beach County FL-Metro Broward County FL-
Inland Palm Beach County FL-Metro Palm Beach County FL-
323 PM EDT TUE APR 10 2018

...SIGNIFICANT WEATHER ADVISORY FOR BROWARD AND SOUTHEASTERN PALM
BEACH COUNTIES UNTIL 430 PM EDT...

* At 323 PM EDT, National Weather Service meteorologists were
  tracking strong thunderstorms along a line extending from near
  Wellington to near Mission Bay to near Intersection I-75 And U.S.
  27. Movement was east at 20 mph.

* Small hail and wind gusts of 50 to 55 mph will be possible with
  these storms.

* Locations impacted include...
  Fort Lauderdale, Coral Springs, West Palm Beach, Pompano Beach,
  Davie, Plantation, Sunrise, Boca Raton, Deerfield Beach, Boynton
  Beach, Delray Beach, Tamarac, Wellington, Margate, Lake Worth,
  Belle Glade, Lighthouse Point, Palm Beach, Lauderdale-By-The-Sea
  and Highland Beach.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These winds can down small tree limbs and branches, and blow around
unsecured small objects. Seek shelter in a safe building until the
storm passes.

To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Miami on Facebook and
Twitter.

&&

LAT...LON 2671 8003 2617 8003 2603 8072 2667 8065
TIME...MOT...LOC 1923Z 257DEG 16KT 2663 8022 2641 8027 2622 8043

ALM

Special Weather Statement
National Weather Service Miami FL
358 PM EDT TUE APR 10 2018

FLZ068-168-102030-
Coastal Palm Beach County FL-Metro Palm Beach County FL-
358 PM EDT TUE APR 10 2018

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL PALM BEACH COUNTY
UNTIL 430 PM EDT...

* At 358 PM EDT, Doppler radar was tracking a strong thunderstorm
  over West Palm Beach, moving east at 15 mph.

* Small hail and winds in excess of 45 mph will be possible with this
  storm.

* Locations impacted include...
  West Palm Beach, Palm Beach Gardens, Riviera Beach, Palm Beach,
  Juno Beach, North Palm Beach, Lake Park, Schall Circle, Port Of
  Palm Beach, Juno Ridge, Downtown West Palm Beach, Golden Lakes,
  Mangonia Park, Lakeside Green, Century Village, Cypress Lakes,
  Plantation Mobile Home Park and Westgate-Belvedere Homes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These winds can down small tree limbs and branches, and blow around
unsecured small objects. Seek shelter in a safe building until the
storm passes.

Frequent cloud to ground lightning is occurring with this storm. If
you can hear thunder, you are close enough to be struck! Seek a safe
shelter inside a building or vehicle.

To report severe weather, contact your nearest law enforcement
agency. You can also share your report with NWS Miami on Facebook and
Twitter.

&&

LAT...LON 2670 8020 2688 8004 2682 8003 2671 8003
TIME...MOT...LOC 1958Z 272DEG 14KT 2673 8008

AR

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