Alert archive / Florida / Special Weather Statements in 2020

Special Weather Statement, NWS Miami, FL

August 1, 2020Palm Beach County, Florida

NWS Miami, FL issued this special weather statement at Aug 1, 2020, 3:33 AM EDT for Palm Beach County, Florida. It was in force for 57 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 1, 2020, 3:33 AM EDT (07:33 UTC)
Expired
Aug 1, 2020, 4:30 AM EDT
In force
57 min
Issued by
NWS Miami, FL

County Palm Beach County, FL

The radar

The Miami radar (KAMX), 105 km from the middle of the area, began a volume at 07:36 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 00:00Z, 7.6 hours before the alert went out and 80 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 00:00Z on 2020-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 186 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 00:00Z on 2020-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -40 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
186 J/kg
Mixed-layer CIN
-109 J/kg
Mixed-layer LCL
1372 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-40 m²/s²
0-3 km storm-relative helicity
-19 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 1, 1:58 AM EDT, 1 hour 35 minutes earlier.

Area forecast discussion, Aug 1, 1:58 AM EDT, 1 hour 35 minutes before
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Hazardous weather outlook, Jul 31, 5:33 PM EDT, 10 hours before
Hazardous Weather Outlook for South Florida
National Weather Service Miami FL
533 PM EDT Fri Jul 31 2020

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
010945-
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-
533 PM EDT Fri Jul 31 2020

...Continuing to Monitor Hurricane Isaias as it Approaches FL Coast...

This hazardous weather outlook is for South Florida.

.DAY ONE...TONIGHT

Hurricane Isaias is forecast to move northwest near the Central
Bahamas tonight, northwestern Bahamas on Saturday, then across the
Straits of Florida and near the east Florida coast Saturday night as
a Category 1 hurricane. Current Watches/Warnings for South Florida
below:

    - A Tropical Storm Warning and Hurricane Watch are in effect for
      Coastal Broward and Inland Palm Beach
    - A Hurricane Warning is in effect for Coastal Palm Beach and
      Metro Palm Beach
    - A Tropical Storm Warning is in effect for Coastal Miami-Dade,
      Inland Broward, Metro Broward, and Metro Miami-Dade
    - A Tropical Storm Watch is in effect for Far South Miami-Dade
      and Inland Miami-Dade

For details on expected hazards, please see:
weather.gov/srh/tropical?office=mfl#hti

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

Hurricane Isaias is forecast to move northwest near the northwestern
Bahamas on Saturday, then across the Straits of Florida and near the
east Florida coast Saturday night as a Category 1 hurricane. This
westward shift in the forecast track of Isaias closer to the
Southeast Florida coast means that a Hurricane Warning has been
issued for coastal and metro Palm Beach County, meaning that damaging
hurricane force winds are now expected to affect parts of coastal
and metro Palm Beach County from Saturday night through early Sunday
morning. A Hurricane Watch is now in effect for coastal Broward and
inland Palm Beach Counties due to the possibility of hurricane force
wind reaching the coastline farther south late Saturday or Saturday
night.

The westward shift also means that a Tropical Storm Warning is
now in effect for all of Broward County, as well as coastal and
metro Miami-Dade County, and a Tropical Storm Watch for Inland Miami-
Dade County. A Tropical Storm Warning means that tropical storm
conditions are expected somewhere in the warning area within the next
24 to 36 hours.

The details of the track and intensity forecast for this weekend
remain highly uncertain. However, interests across South Florida are
urged to closely monitor the forecast and be ready to implement their
preparedness plans. For details on expected hazards, please see:
weather.gov/srh/tropical?office=mfl#hti

Scattered to locally numerous thunderstorms are possible early next
week as deep moisture moves into the area behind Hurricane Isaias.

.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.

FELL

In the hours before

Special weather statement, Aug 1, 1:21 AM EDT, 2 hours 12 minutes before
Special Weather Statement
National Weather Service Miami FL
121 AM EDT Sat Aug 1 2020

FLZ071>073-174-010545-
Inland Broward County FL-Metro Broward County FL-Far South Miami-
Dade County FL-Inland Miami-Dade County FL-
121 AM EDT Sat Aug 1 2020

...SIGNIFICANT WEATHER ADVISORY FOR INLAND MIAMI-DADE AND SOUTHERN BROWARD
COUNTIES UNTIL 145 AM EDT...

* At 120 AM EDT, National Weather Service meteorologists were
  tracking gusty showers along a line extending from Royal Palm
  Ranches to Pennsuco to near Intersection Krome And Kendall Drive to
  near Everglades National Park. Movement was west at 35 mph.

* Winds in excess of 45 mph possible with these showers.

* Locations impacted include...
  Pembroke Pines, Miramar, Davie, The Redland, Cooper City, Fortymile
  Bend, Royal Palm Ranger, Intersection Krome And U.S. 27, Shark
  Valley Obs Tower, Mahogany Hammock, Pa-Hay-
  Okee Overlook and Everglades National Park.

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 2607 8087 2573 8087 2527 8086 2530 8062
      2565 8056 2588 8045 2604 8029
TIME...MOT...LOC 0520Z 099DEG 31KT 2603 8025 2588 8040 2568 8052 2536
8056

BAXTER
Local storm report, Aug 1, 1:26 AM EDT, 2 hours 7 minutes before
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Special weather statement, Aug 1, 2:34 AM EDT, 59 minutes before
Special Weather Statement
National Weather Service Miami FL
234 AM EDT Sat Aug 1 2020

FLZ067-068-071>074-168-172-173-010730-
Inland Broward County FL-Coastal Broward County FL-
Coastal Palm Beach County FL-Metro Broward County FL-
Metropolitan Miami Dade FL-Inland Palm Beach County FL-Inland Miami-
Dade County FL-Metro Palm Beach County FL-
Coastal Miami Dade County FL-
234 AM EDT Sat Aug 1 2020

...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN MIAMI-DADE...BROWARD AND
SOUTHEASTERN PALM BEACH COUNTIES UNTIL 330 AM EDT...

* At 233 AM EDT, National Weather Service meteorologists were
  tracking gusty showers along a line extending from 28 miles east of
  Hillsboro Beach to 17 miles east of Lauderdale-By-The-Sea to 11
  miles east of Miami Beach. Movement was northwest at 35 mph.

* Winds in excess of 45 mph and funnel clouds possible with these
  showers.

* Locations impacted include...
  Miami, Hialeah, Fort Lauderdale, Pembroke Pines, Hollywood,
  Miramar, Coral Springs, Pompano Beach, Davie, Miami Beach,
  Plantation, Sunrise, Boca Raton, Deerfield Beach, Tamarac, Margate,
  Lighthouse Point, Lauderdale-By-The-Sea, Surfside and Highland
  Beach.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This activity was also developing in an environment favorable for the
formation of funnel clouds. Stay tuned to NOAA weather radio and
local media for additional updates and possible warnings.

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 2640 7997 2583 8004 2580 8005 2593 8042
      2633 8041 2643 8024
TIME...MOT...LOC 0633Z 116DEG 31KT 2624 7962 2613 7982 2581 7994

BAXTER
Local storm report, Aug 1, 3:28 AM EDT, 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
328 AM EDT SAT AUG 1 2020

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

0255 AM     NON-TSTM WND GST 2 S LIGHTHOUSE POINT    26.26N 80.08W
08/01/2020  M42 MPH          AMZ651             FL   MESONET

            MESONET STATION XHBI AT HILLSBORO INLET
            REPORTED A 42 MPH WIND GUST AT 2:55 AM.

&&

RAG
Local storm report, Aug 1, 3:32 AM EDT, 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
332 AM EDT SAT AUG 1 2020

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

0304 AM     NON-TSTM WND GST 3 NNE LAUDERDALE LAKES  26.20N 80.18W
08/01/2020  M41 MPH          BROWARD            FL   ASOS

            ASOS STATION KFXE AT FORT LAUDERDALE
            EXECUTIVE AIRPORT REPORTED A 41 MPH WIND
            GUST AT 3:04 AM.

&&

RAG
Special weather statement, Aug 1, 3:33 AM EDT, 0 minutes before
Special Weather Statement
National Weather Service Miami FL
333 AM EDT Sat Aug 1 2020

FLZ067-068-168-010830-
Coastal Palm Beach County FL-Inland Palm Beach County FL-
Metro Palm Beach County FL-
333 AM EDT Sat Aug 1 2020

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN PALM BEACH COUNTY UNTIL
430 AM EDT...

* At 333 AM EDT, National Weather Service meteorologists were
  tracking gusty showers along a line extending from 26 miles east of
  Riviera Beach to 10 miles east of Palm Beach to near Boca Raton.
  Movement was west at 30 to 35 mph.

* Winds in excess of 45 mph possible with these showers.

* Locations impacted include...
  West Palm Beach, Boca Raton, Deerfield Beach, Boynton Beach, Delray
  Beach, Wellington, Jupiter, Palm Beach Gardens, Lake Worth, Riviera
  Beach, Palm Beach, Tequesta, Highland Beach, Juno Beach, Ocean
  Ridge, Greenacres, Royal Palm Beach, Palm Springs, North Palm Beach
  and Lantana.

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 2631 8004 2634 8023 2634 8054 2696 8032
      2697 8003
TIME...MOT...LOC 0733Z 105DEG 26KT 2684 7960 2667 7987 2633 8006

BAXTER

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 10:45 PM EDTSpecial Marine WarningMFL45 min
Jul 31, 11:43 PM EDTSpecial Weather StatementMFLMiami-Dade62 min
Aug 1, 12:35 AM EDTSpecial Marine WarningMFL25 min
Aug 1, 12:38 AM EDTSpecial Weather StatementMFLMiami-Dade52 min
Aug 1, 1:21 AM EDTSpecial Weather StatementMFLMiami-Dade24 min
Aug 1, 2:34 AM EDTSpecial Weather StatementMFLBroward56 min
Aug 1, 2:41 AM EDTSpecial Marine WarningMFL64 min
Aug 1, 5:03 AM EDTCoastal Flood StatementMFLBroward, Miami-Dade24 hr
Aug 1, 5:03 AM EDTHigh Surf AdvisoryMFLBroward, Miami-Dade, Palm Beach39 hr
Aug 1, 5:24 AM EDTCoastal Flood AdvisoryMFLPalm Beach39 hr
Aug 1, 6:30 AM EDTSpecial Weather StatementMFLMiami-Dade90 min
Aug 1, 7:31 AM EDTSpecial Weather StatementMFLBroward, Miami-Dade44 min
Aug 1, 10:20 AM EDTSpecial Marine WarningMFL40 min
Aug 1, 10:25 AM EDTSpecial Marine WarningMFL35 min
Aug 1, 10:55 AM EDTSpecial Marine WarningMFL35 min
Aug 1, 10:59 AM EDTSpecial Marine WarningMFL31 min
Aug 1, 11:36 AM EDTSpecial Marine WarningMFL24 min
Aug 1, 11:44 AM EDTSpecial Marine WarningMFL46 min
Aug 1, 11:46 AM EDTSpecial Weather StatementMFLMiami-Dade44 min
Aug 1, 12:28 PM EDTSpecial Marine WarningMFL62 min
Aug 1, 1:40 PM EDTSpecial Weather StatementMFLMiami-Dade50 min
Aug 1, 1:43 PM EDTSpecial Marine WarningMFL47 min
Aug 1, 2:27 PM EDTSpecial Marine WarningMFL93 min
Aug 1, 2:32 PM EDTSpecial Weather StatementMFLBroward43 min
Aug 1, 6:45 PM EDTSpecial Weather StatementMFLGlades60 min
Aug 1, 6:50 PM EDTSpecial Marine WarningMFL25 min
Aug 1, 7:33 PM EDTSpecial Marine WarningMFL42 min
Aug 1, 7:51 PM EDTSpecial Weather StatementMFLGlades, Hendry54 min
Aug 1, 7:53 PM EDTSpecial Weather StatementMFLMiami-Dade52 min

Nearby

Special Weather Statements in Florida, 2020Every special weather statement in 2020

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.