Special Weather Statement, NWS Miami, FL

Area Forecast Discussion
National Weather Service Miami FL
355 PM EDT Tue May 30 2017

.DISCUSSION...
Upper level ridge gradually moves eastward into the Atlantic
waters along with surface high pressure. This is allowing for
a more south east flow, thus setting up for an increase in low
level moisture over South Florida for much of the week. Latest
MFL 12Z sounding shows pwats of up to 1.5 inchees this morning
with decent amount of CAPE and a light to moderate se flow.
Expect current activity to increase as the afternoon progress
becoming more scattered in portions of the interior and west
Gulf coast. Model guidance continues to be more aggressive in
convective coverage this afternoon.

Tonight through Thursday, light to moderate southeast flow will
continue to increase moisture content over the region with the
latest model runs maintaining high pwats values of up to 1.9 in
by the end of the week. With more low-level moisture combined
with sea-breeze and outflow boundary interactions, potential for
showers and thunderstorms will also increase as well through the
week. Rain chances during the afternoon and evening hrs will be
mainly concentrated in the interior and Lake Okeechobee regions.
During the morning hours showers and storms will be concentrated
over the waters. High temperatures will exceed the 90s across S
Florida and minimum still remaining in the mid to upper 70s along
the east coast metro area and low 70s interior and west. Thursday
through Tuesday, model guidance show rain chances will increase
mainly interior counties through the weekend into early next week
at this time. Temperatures during the long term will be regulated
by precipitation, so maxima will return to near normal near 90F,
with minima remaining above normal in the 70s.

&&

.MARINE...
Southeast flow will gradually become more dominant through the
week, though speeds should generally be 15 KT or less. Seas
remain around 4 feet or less through the week. Thunderstorm
chances will increase for the latter half of the week.

&&

.AVIATION...
VFR expected to prevail through the TAF period. Afternoon
thunderstorms are expected to develop inland of the terminals.
Some convection could come near APF and TMB, though storms should
generally stay west of the east coast terminals. Wind should
remain generally light overnight before picking up after sunrise
on Wednesday morning. APF will likely see another Gulf sea breeze
develop on Wednesday.

&&

.PRELIMINARY POINT TEMPS/POPS...
West Palm Beach  77  90  77  89 /  10  20  30  40
Fort Lauderdale  80  89  79  89 /  10  10  30  40
Miami            79  90  79  90 /  10  20  40  40
Naples           74  92  75  92 /  20  40  20  60

&&

.MFL WATCHES/WARNINGS/ADVISORIES...
FL...None.
AM...None.
GM...None.
&&

DISCUSSION...67/MT
MARINE...67/MT

Hazardous Weather Outlook for South Florida
National Weather Service Miami FL
408 PM EDT Tue May 30 2017

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
310815-
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-
408 PM EDT Tue May 30 2017

This hazardous weather outlook is for South Florida.

DAY ONE...TONIGHT

Thunderstorms....lingering storms may last through the early evening
hours, mainly over the Gulf coast and interior areas. Main threats
will be lightning strikes and locally heavy rain.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

Thunderstorms are possible mainly over interior sections Wednesday.
There is a chance of thunderstorms for all areas Thursday through
Saturday, mainly during the afternoon. The primary threat with this
activity will be lightning and locally heavy rainfall.

No other Hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

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

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PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
1139 AM EDT TUE MAY 30 2017

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1055 AM     FUNNEL CLOUD     15 SE BIG CYPRESS RESER 26.16N  80.79W
05/30/2017                   BROWARD            FL   FOREST SERVICE

            MEMBER OF FOREST SERVICE REPORTED A BRIEF FUNNEL CLOUD
            A FEW MILES SOUTH OF INTERSTATE 75 AND SOUTHEAST OF THE
            MICCOSUKEE INDIAN RESERVATION. TIME AND LOCATION
            ESTIMATED BY RADAR.

&&

EVENT NUMBER MFL1700167

IRL

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Miami FL
429 PM EDT TUE MAY 30 2017

FLZ066-070-302100-
Hendry FL-Inland Collier County FL-
429 PM EDT TUE MAY 30 2017

...Significant Weather Advisory for frequent to excessive lightning
and 45 to 55 mph winds for north central Collier and southwestern
Hendry Counties Until 500 PM EDT...

* At 428 PM EDT...Doppler radar was tracking a strong thunderstorm
  near Ave Maria, moving north at 15 mph.

* The primary impacts will be frequent to excessive lightning and
  gusty winds  of 45 TO 55 mph.  Lightning is the number one weather
  related killer in Florida. Trees and open shelters offer no
  protection. 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.

* LOCATIONS IMPACTED INCLUDE...
  Ave Maria, Immokalee, Bunker Hill, Sunniland and Lake Trafford.

LAT...LON 2628 8121 2623 8137 2650 8155 2658 8126
TIME...MOT...LOC 2028Z 162DEG 11KT 2632 8133

KScharf