Alert archive / Florida / Special Weather Statements in 2016

Special Weather Statement, NWS Miami, FL

July 1, 2016Glades County, Florida

NWS Miami, FL issued this special weather statement at Jul 1, 2016, 6:43 PM EDT for Glades County, Florida. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 1, 2016, 6:43 PM EDT (22:43 UTC)
Expired
Jul 1, 2016, 7:30 PM EDT
In force
47 min
Issued by
NWS Miami, FL

County Glades County, FL

The radar

The Melbourne radar (KMLB), 122 km from the middle of the area, began a volume at 22:45 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 10.7 hours before the alert went out and 149 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Tampa Bay, FL at 12:00Z on 2016-07-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 896 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tampa Bay, FL at 12:00Z on 2016-07-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
896 J/kg
Mixed-layer CIN
-23 J/kg
Mixed-layer LCL
881 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

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

NWS Miami, FL wrote its last area forecast discussion before this special weather statement went out at Jul 1, 4:24 PM EDT, 2 hours 19 minutes earlier.

Area forecast discussion, Jul 1, 4:24 PM EDT, 2 hours 19 minutes before
Area Forecast Discussion
National Weather Service Miami FL
424 PM EDT FRI JUL 1 2016

.DISCUSSION...

This Afternoon-Tonight: Temperatures aloft a tad warmer than
yesterday, leading to a slightly less steep mid level lapse rate.
Overall flow is a little weaker as well, meaning that seabreeze
convergence is not as robust, and the combination seems to have
limited the intensity and coverage of storms this afternoon so
far.

Scattered showers and storms will continue through at least
sunset, driven by outflow boundaries from the ongoing activity.
Steering flow will take activity slowly to the northeast, so
portions of the east coast metro may see another round of storms
through the evening. Gulf coast looks to remain dry as westerly
flow is a little stronger today, but will have to watch for any
outflow boundaries from the interior that may push back.

Showers and storms diminish a few hours after sunset for most of
the region. East coast sites may see passing Atlantic showers
again with southerly flow component.

This Weekend-Monday: Weak upper level trough slides into the Florida
peninsula over the weekend, and while models show some additional
mid level moisture accompanying this feature, mid level
temperatures are not forecast to cool very much. The more
interesting feature will be an upper level low forecast to
migrate westward across the Bahamas, Cuba, the FL Straits, and
into the eastern Gulf Sunday and Monday. Models show 500mb temps
cooling to -8C to -9C, though the deepest moisture will be
tracking west with this feature.

The low level ridge axis will remain south or across South Florida
during this period, with steering flow more south-southwest on
Saturday and southerly on Sunday. As the axis begins to lift back to
the north on Monday, flow will shift more southeasterly.

Sea breezes will develop each day, being the main convective
initiator for convection each afternoon with scattered to
numerous showers and thunderstorms each afternoon and evening.
Steering flow will drive the best coverage, favoring the eastern
side of the peninsula for Saturday, and the interior Sunday and
Monday. If the cooling aloft materializes, a few strong storms may
occur each afternoon.

Rest of Next Week: Strong upper level ridge builds across the
western Atlantic just to our east for the weak, gradually sliding
overhead by the end of the week. At the surface, the low level ridge
axis will lift to our north into Central Florida. The combination
will leave South Florida in a warm and suppressed atmosphere under
prevailing deep easterly flow.

Typical summertime pattern will prevail with scattered afternoon
showers and storm with the highest chances over the interior and
Gulf coast areas.

&&

.MARINE...Not too many changes in the ongoing forecast with moderate
south-southeasterly flow through the weekend around 10-15kts.
Stronger surface ridge builds across Central Florida into next week,
backing winds more east-southeast. Winds will remain light enough at
least for this weekend for the Gulf coast breeze to develop near the
coast in the afternoons.

Seas 2-3 feet Atlantic and 2 feet or less in the Gulf through the
weekend and into the upcoming weekend.

Showers and storms possible every day, with locally higher seas
and gusty winds near any storms.

&&

.PRELIMINARY POINT TEMPS/POPS...
West Palm Beach  78  91  79  90 /  20  60  30  50
Fort Lauderdale  78  89  80  90 /  30  60  30  40
Miami            77  90  79  91 /  20  60  30  50
Naples           77  92  77  92 /  10  40  20  50

&&

.MFL Watches/Warnings/Advisories...
FL...None.
AM...None.
GM...None.
&&

ALM
Hazardous weather outlook, Jul 1, 10:54 AM EDT, 7 hours 49 minutes before
HAZARDOUS WEATHER OUTLOOK FOR SOUTH FLORIDA
NATIONAL WEATHER SERVICE MIAMI FL
1054 AM EDT FRI JUL 1 2016

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
020000-
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-
1054 AM EDT FRI JUL 1 2016

...SCATTERED TO NUMEROUS STORMS ACROSS SOUTH FLORIDA TODAY...
...CHANCE OF WATERSPOUTS ACROSS ATLANTIC AND GULF WATERS...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH FLORIDA.

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS: SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED
TODAY OVER SOUTH FLORIDA WITH THE HIGHEST THREAT OVER THE INTERIOR
AND EAST COAST METRO AREAS. FREQUENT LIGHTNING, GUSTY WINDS, AND
LOCALLY HEAVY RAINFALL WILL BE THE PRIMARY THREATS.

WIND: THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING WIND GUSTS
OF 40 TO 55 MPH.

FLOODING: SLOW MOVEMENT OF THE STRONGEST THUNDERSTORMS MAY LEAD TO
FLOODING OF ROADWAYS AND POOR DRAINAGE AREAS.

TEMPERATURES: HIGHEST HEAT INDEX VALUES WILL RANGE FROM 100 TO
105 DEGREES ACROSS INTERIOR AND WESTERN EAST COAST METRO AREAS OF
SOUTH FLORIDA DURING THE MIDDAY AND EARLY AFTERNOON HOURS.

WATERSPOUTS: THERE IS A CHANCE OF WATERSPOUTS ACROSS THE GULF AND
ATLANTIC WATERS TODAY.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

SCATTERED TO NUMEROUS THUNDERSTORMS ARE POSSIBLE DURING THE
AFTERNOON AND EVENING HOURS SATURDAY AND SUNDAY, PARTICULARLY
ACROSS INTERIOR SECTIONS OF SOUTH FLORIDA. THE GREATEST THREATS
WILL BE FREQUENT LIGHTNING AND LOCALLY HEAVY RAINFALL LEADING TO
MINOR FLOODING OF ROADWAYS AND POOR DRAINAGE AREAS.

THE THREAT OF THUNDERSTORMS WILL BE IN THE ISOLATED TO SCATTERED
RANGE ON THE FOURTH OF JULY, WITH THE BEST CHANCE OVER THE
INTERIOR AND WEST COAST METRO AREAS OF SOUTH FLORIDA. THE THUNDER
THREAT WILL REMAIN LOW FOR THE MIDDLE OF NEXT WEEK WITH THE BEST
COVERAGE OVER THE INTERIOR AND WEST COAST METRO AREAS.

HIGHEST HEAT INDEX TEMPERATURES EACH AFTERNOON THROUGH THE FOURTH
OF JULY WEEKEND INTO THE MIDDLE OF NEXT WEEK WILL RANGE BETWEEN
100 TO 105 DEGREES ESPECIALLY OVER THE INTERIOR AREAS OF SOUTH
FLORIDA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

FOR MORE INFORMATION...VISIT THE NATIONAL WEATHER SERVICE IN
MIAMI WEBSITE AT WWW.WEATHER.GOV/MIAMI.

In the hours before

Special weather statement, Jul 1, 3:32 PM EDT, 3 hours 11 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
332 PM EDT FRI JUL 1 2016

FLZ070-071-073-075-012015-
MAINLAND MONROE FL-INLAND COLLIER COUNTY FL-INLAND MIAMI-
DADE COUNTY FL-INLAND BROWARD COUNTY FL-
332 PM EDT FRI JUL 1 2016

...SIGNIFICANT WEATHER ADVISORY FOR FREQUENT TO EXCESSIVE LIGHTNING
FOR SOUTHEASTERN COLLIER...SOUTHWESTERN BROWARD AND NORTHWESTERN
MIAMI-DADE COUNTIES UNTIL 415 PM EDT...

* AT 331 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
  NEAR DADE-COLLIER TRAINING AIRPORT...OR 30 MILES EAST OF
  CHOKOLOSKEE...MOVING NORTHEAST AT 25 MPH.

* THE MAIN IMPACT WILL BE FREQUENT TO EXCESSIVE LIGHTNING. LIGHTNING
  IS THE NUMBER ONE WEATHER RELATED KILLER IN FLORIDA. TREES AND OPEN
  SHELTERS FOUND IN PARKS...ON BEACHES OR GOLF COURSES OFFER NO
  PROTECTION FROM THE DANGERS OF LIGHTNING. SEEK SHELTER IN A SAFE
  BUILDING UNTIL THE STORM PASSES.

* LOCATIONS IMPACTED INCLUDE...
  INTERSECTION ALLIGATOR ALLEY AND MIAMI CANAL...
  DADE-COLLIER TRAINING AIRPORT...
  BIG CYPRESS NATIONAL PRESERVE AND WEST BROWARD REC. AREA ON
  ALLIGATOR ALLEY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO STREET FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 2578 8090 2593 8107 2616 8093 2615 8059
      2588 8062
TIME...MOT...LOC 1931Z 235DEG 21KT 2593 8085

60
Special weather statement, Jul 1, 4:40 PM EDT, 2 hours 3 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
440 PM EDT FRI JUL 1 2016

FLZ063-012130-
GLADES FL-
440 PM EDT FRI JUL 1 2016

...SIGNIFICANT WEATHER ADVISORY FOR FREQUENT TO EXCESSIVE LIGHTNING
AND 45 TO 55 MPH WINDS FOR NORTHEASTERN GLADES COUNTY UNTIL 530 PM
EDT...

* AT 439 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
  NEAR BUCKHEAD RIDGE...MOVING SOUTHEAST 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...
  BUCKHEAD RIDGE.

LAT...LON 2720 8094 2720 8093 2719 8091 2718 8091
      2717 8090 2717 8088 2715 8087 2714 8087
      2720 8083 2718 8080 2713 8079 2702 8104
      2721 8107 2721 8094
TIME...MOT...LOC 2039Z 322DEG 15KT 2717 8093

60
Special weather statement, Jul 1, 5:04 PM EDT, 1 hour 39 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
504 PM EDT FRI JUL 1 2016

FLZ072>074-173-012145-
COASTAL MIAMI DADE COUNTY FL-INLAND MIAMI-DADE COUNTY FL-
METRO BROWARD COUNTY FL-METROPOLITAN MIAMI DADE FL-
504 PM EDT FRI JUL 1 2016

...SIGNIFICANT WEATHER ADVISORY FOR FREQUENT TO EXCESSIVE LIGHTNING
AND 45 TO 55 MPH WINDS FOR NORTHEASTERN MIAMI-DADE COUNTY UNTIL 545
PM EDT...

* AT 503 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
  OVER DORAL...OR 7 MILES SOUTHWEST OF HIALEAH...MOVING SOUTHEAST 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...
  MIAMI...HIALEAH...PEMBROKE PINES...MIRAMAR...MIAMI BEACH...
  CORAL GABLES...SOUTH MIAMI...MIAMI GARDENS...KENDALL...
  VIRGINIA KEY...NORTH MIAMI...DORAL...MIAMI LAKES...
  HIALEAH GARDENS...PINECREST...OPA-LOCKA...MIAMI SPRINGS...
  SWEETWATER...MIAMI SHORES AND NORTH BAY VILLAGE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO STREET FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.

&&

LAT...LON 2583 8054 2593 8039 2603 8028 2578 8010
      2562 8029 2571 8047
TIME...MOT...LOC 2103Z 327DEG 12KT 2581 8040

60
Special weather statement, Jul 1, 6:43 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MIAMI FL
643 PM EDT FRI JUL 1 2016

FLZ063-012330-
GLADES FL-
643 PM EDT FRI JUL 1 2016

...SIGNIFICANT WEATHER ADVISORY FOR FREQUENT TO EXCESSIVE LIGHTNING
FOR CENTRAL GLADES COUNTY UNTIL 730 PM EDT...

* AT 643 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 7
  MILES NORTHWEST OF LAKEPORT...MOVING EAST AT 25 MPH.

* THE MAIN IMPACT WILL BE FREQUENT TO EXCESSIVE LIGHTNING. LIGHTNING
  IS THE NUMBER ONE WEATHER RELATED KILLER IN FLORIDA. TREES AND OPEN
  SHELTERS FOUND IN PARKS...ON BEACHES OR GOLF COURSES OFFER NO
  PROTECTION FROM THE DANGERS OF LIGHTNING. SEEK SHELTER IN A SAFE
  BUILDING UNTIL THE STORM PASSES.

* LOCATIONS IMPACTED INCLUDE...
  LAKEPORT...BUCKHEAD RIDGE...PALMDALE...
  BRIGHTON SEMINOLE RESERVATION...
  INDIAN PRAIRIE CANAL MOUTH AND OKEE TANTIE RECREATION AREA.

LAT...LON 2719 8091 2717 8090 2717 8088 2714 8087
      2717 8086 2717 8085 2701 8088 2697 8095
      2695 8100 2693 8100 2684 8115 2696 8134
      2703 8135 2704 8134 2703 8133 2703 8127
      2712 8127 2712 8117 2721 8117 2721 8094
TIME...MOT...LOC 2243Z 284DEG 31KT 2703 8123

60

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 1, 3:32 PM EDTSpecial Weather StatementMFLBroward43 min
Jul 1, 4:40 PM EDTSpecial Weather StatementMFLOkeechobee50 min
Jul 1, 5:04 PM EDTSpecial Weather StatementMFLMiami-Dade41 min
Jul 1, 7:17 PM EDTSpecial Marine WarningMFL28 min
Jul 1, 7:22 PM EDTSevere Thunderstorm WarningMFLGlades, Hendry38 min
Jul 1, 7:41 PM EDTSpecial Marine WarningMFL64 min

Nearby

Special Weather Statements in Florida, 2016Every special weather statement in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.