Alert archive / Florida / Special Weather Statements in 2019

Special Weather Statement, NWS Miami, FL

August 29, 2019Broward County, Florida

NWS Miami, FL issued this special weather statement at Aug 29, 2019, 3:13 PM EDT for Broward 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
Aug 29, 2019, 3:13 PM EDT (19:13 UTC)
Expired
Aug 29, 2019, 4:00 PM EDT
In force
47 min
Issued by
NWS Miami, FL

County Broward County, FL

The radar

The Miami radar (KAMX), 78 km from the middle of the area, began a volume at 19:15 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

Miami, FL (KMFL), launched 12:00Z, 7.2 hours before the alert went out and 54 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, Miami, FL at 12:00Z on 2019-08-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1012 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, Miami, FL at 12:00Z on 2019-08-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -26 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
1012 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
926 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-26 m²/s²
0-3 km storm-relative helicity
-4 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 Aug 29, 2:21 PM EDT, 52 minutes earlier.

Area forecast discussion, Aug 29, 2:21 PM EDT, 52 minutes before
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Hazardous weather outlook, Aug 29, 4:30 AM EDT, 10 hours 43 minutes before
Hazardous Weather Outlook for South Florida
National Weather Service Miami FL
430 AM EDT Thu Aug 29 2019

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
292030-
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-
430 AM EDT Thu Aug 29 2019

...High Risk of Rip Currents At Palm Beaches Today...
...Thunderstorms Expected Across South Florida This Afternoon...

This hazardous weather outlook is for South Florida.

.DAY ONE...TODAY AND TONIGHT

Rip currents: A northeast long-period swell from Tropical Depression
Erin will lead to a High Risk of Rip Currents along the Palm Beaches
today. A moderate risk of rip currents is forecast for the Miami-
Dade and Broward beaches.

Coastal Flooding: Minor coastal flooding will be possible along the
east coast beaches at high tide this evening due to the new moon and
increased northeast swell.

Thunderstorms: Scattered to widespread thunderstorms are expected
across South Florida this afternoon, with the greatest coverage over
the interior. The primary hazards will be heavy rainfall, gusty
winds, and lightning.

Waterspouts: Isolated waterspouts are possible across all South
Florida waters.

Flooding: Heavy rainfall will be possible with showers and
thunderstorms today. Slow moving storms may lead to the threat for
ponding of water along streets and in low lying areas. This threat
will be highest across the urban areas this afternoon.

Temperatures: Heat indices will climb into the 105 to 108 degree
range this afternoon. Please use caution if working outdoors.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

Scattered to locally numerous storms are expected each day through
the remainder of the week across South Florida. The main hazards
will be lightning, locally heavy rainfall, and gusty winds.

A long-period northeasterly swell moving through the local Atlantic
waters will bring an increased rip current risk to the east coast.

The New Moon and increased swell will continue to bring elevated
tidal levels to the East Coast beaches into this weekend. Minor
coastal flooding will be possible at high tides.

There is an increased chance for flooding Friday and potentially
Saturday due to widespread showers and thunderstorms across the area.

Hurricane Dorian may potentially approach and affect the Florida
Peninsula later in the holiday weekend. It is still too soon to know
the finer details of the potential impacts to South Florida. Please
continue to monitor the progress of Dorian through the week. Now is a
good time to make sure your household hurricane plan is in order.

.SPOTTER INFORMATION STATEMENT...

Widespread spotter activation is not anticipated, however individual
spotters are encouraged to report high wind, waterspouts, and
flooding 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.

In the hours before

Special weather statement, Aug 29, 12:52 PM EDT, 2 hours 21 minutes before
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Special weather statement, Aug 29, 3:13 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 3:40 AM EDTRip Current StatementMFLPalm Beach16 hr
Aug 29, 3:55 AM EDTAreal Flood AdvisoryMFLPalm Beach2 hr
Aug 29, 11:01 AM EDTCoastal Flood StatementMFLBroward, Miami-Dade, Palm Beach4 days
Aug 29, 12:52 PM EDTSpecial Weather StatementMFLMiami-Dade23 min
Aug 29, 4:44 PM EDTSpecial Weather StatementMFLPalm Beach46 min
Aug 29, 5:06 PM EDTSpecial Weather StatementMFLMonroe39 min
Aug 29, 7:06 PM EDTSpecial Weather StatementMFLCollier39 min
Aug 29, 7:21 PM EDTSpecial Marine WarningMFL24 min

Nearby

Special Weather Statements in Florida, 2019Every special weather statement in 2019

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.