Alert archive / Florida / High Surf Advisories in 2020

High Surf Advisory 10, NWS Miami, FL

November 9, 2020Palm Beach County, Florida

NWS Miami, FL issued this high surf advisory at Nov 9, 2020, 10:07 AM EST for Palm Beach County, Florida. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Nov 9, 2020, 10:07 AM EST (15:07 UTC)
Expired
Nov 10, 2020, 1:00 AM EST
In force
15 hr
Issued by
NWS Miami, FL

County Palm Beach County, FL

The radar

The Miami radar (KAMX), 115 km from the middle of the area, began a volume at 15:07 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, 3.1 hours before the alert went out and 93 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 2020-11-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 174 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 2020-11-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 square meters per square second.193958Sfc1 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
174 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
723 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
24 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this high surf advisory 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 high surf advisory went out at Nov 9, 9:57 AM EST, 10 minutes earlier.

Area forecast discussion, Nov 9, 9:57 AM EST, 10 minutes before
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Hazardous weather outlook, Nov 9, 5:11 AM EST, 4 hours 56 minutes before
Hazardous Weather Outlook for South Florida
National Weather Service Miami FL
511 AM EST Mon Nov 9 2020

AMZ610-630-650-651-670-671-FLZ063-066>075-168-172>174-GMZ656-657-676-
092215-
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-
511 AM EST Mon Nov 9 2020

...TROPICAL STORM WARNINGS IN EFFECT FOR ALL OF SOUTH FLORIDA...
...FLOOD WATCHES IN EFFECT FOR ALL OF SOUTH FLORIDA...
...DANGEROUS MARINE CONDITIONS...

This hazardous weather outlook is for South Florida.

.DAY ONE...TODAY AND TONIGHT

See weather.gov/srh/tropical?office=mfl#hti

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

See weather.gov/srh/tropical?office=mfl#hti

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed through early next week.

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

In the hours before

Special weather statement, Nov 9, 9:11 AM EST, 56 minutes before
Special Weather Statement
National Weather Service Miami FL
911 AM EST Mon Nov 9 2020

FLZ066-070-071-091500-
Inland Broward County FL-Hendry FL-Inland Collier County FL-
911 AM EST Mon Nov 9 2020

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL COLLIER...
SOUTHEASTERN HENDRY AND SOUTHERN BROWARD COUNTIES UNTIL 1000 AM
EST...

* At 910 AM EST, National Weather Service meteorologists were
  tracking a gusty shower 8 miles south of Intersection Alligator
  Alley And Miami Canal, or 19 miles west of Miramar, moving
  northwest at 45 mph.

* Wind gusts up to 50 mph and funnel clouds possible with this
  shower.

* Locations impacted include...
  Miccosukee Indian Reservation, Big Cypress Seminole Reservation,
  Miccosukee Service Plaza, Big Cypress National Preserve and West
  Broward Rec. Area On Alligator Alley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Funnel clouds occasionally touch down and produce tornadoes or
waterspouts. Move indoors and stay away from windows.

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 2600 8048 2598 8065 2599 8091 2626 8124
      2638 8096
TIME...MOT...LOC 1410Z 133DEG 37KT 2603 8066

KELLY
Local storm report, Nov 9, 9:14 AM EST, 53 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
914 AM EST MON NOV 9 2020

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

0913 AM     FLOOD            2 NNE MIAMI             25.80N 80.19W
11/09/2020                   MIAMI-DADE         FL   PUBLIC

            REPORT ON SOCIAL MEDIA: SIGNIFICANT FLOODING
            ONGOING AT NE 22ND STREET AND BISCAYNE BLVD.
            WATER IS 1/2 UP CAR TIRES.

&&

SH
Special weather statement, Nov 9, 9:14 AM EST, 53 minutes before
Special Weather Statement
National Weather Service Miami FL
914 AM EST Mon Nov 9 2020

FLZ069>071-073-075-174-091500-
Coastal Collier County FL-Inland Broward County FL-
Inland Collier County FL-Mainland Monroe FL-Far South Miami-
Dade County FL-Inland Miami-Dade County FL-
914 AM EST Mon Nov 9 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN COLLIER...MAINLAND
MONROE AND MIAMI-DADE COUNTIES UNTIL 1000 AM EST...

* At 914 AM EST, National Weather Service meteorologists were
  tracking gusty showers along a line extending from near Loop Road
  Ee Center to 8 miles south of Royal Palm Ranger. Movement was
  northwest at 35 mph.

* Wind gusts up to 50 mph and funnel clouds possible with these
  showers.

* Locations impacted include...
  Chokoloskee, Everglades City, Plantation Island, Loop Road Ee
  Center, Dade-
  Collier Training Airport, Royal Palm Ranger, Shark Valley Obs
  Tower, Mahogany Hammock, Pa-Hay-
  Okee Overlook, Wilderness Waterway, Everglades National Park, Big
  Cypress National Preserve and Fortymile Bend.

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.

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 2571 8135 2573 8134 2574 8138 2581 8146
      2619 8099 2534 8051 2521 8075
TIME...MOT...LOC 1414Z 146DEG 31KT 2582 8102 2527 8065

FELL
Local storm report, Nov 9, 9:34 AM EST, 33 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
934 AM EST MON NOV 9 2020

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

0931 AM     FLOOD            2 S WEST PALM BEACH     26.69N 80.06W
11/09/2020                   PALM BEACH         FL   FIRE DEPT/RESCUE

            WEST PALM BEACH FIRE DEPARTMENT REPORTS
            NUMEROUS TREES DOWN IN THE 4300 BLOCK OF
            MERRILL AVE AND ANDREWS RD IN WEST PALM
            BEACH, FLORIDA. VEHICLE DAMAGE IS VISIBLE ON
            PICTURES SHARED BY WPBFIRE ON SOCIAL MEDIA.

&&

SH
Local storm report, Nov 9, 9:48 AM EST, 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIAMI FL
948 AM EST MON NOV 9 2020

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

0946 AM     TROPICAL STORM   1 S WEST PALM BEACH     26.69N 80.06W
11/09/2020                   PALM BEACH         FL   FIRE DEPT/RESCUE

            CORRECTED... WEST PALM BEACH FIRE DEPARTMENT
            REPORTS NUMEROUS TREES DOWN IN THE 4300
            BLOCK OF MERRILL AVE AND ANDREWS RD IN WEST
            PALM BEACH, FLORIDA. VEHICLE DAMAGE IS
            VISIBLE ON PICTURES SHARED BY WPBFIRE ON
            SOCIAL MEDIA.

&&

SH
Special weather statement, Nov 9, 9:57 AM EST, 10 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Nov 8, 7:37 PM ESTSpecial Marine WarningMFL53 min
Nov 8, 7:44 PM ESTFlash Flood WarningMFLBroward, Palm Beach9 hr
Nov 8, 7:59 PM ESTSpecial Marine WarningMFL91 min
Nov 8, 8:47 PM ESTSpecial Weather StatementMFLBroward43 min
Nov 8, 9:35 PM ESTSpecial Marine WarningMFL85 min
Nov 8, 10:08 PM ESTFlash Flood WarningMFLMiami-Dade4 hr
Nov 8, 10:48 PM ESTAreal Flood WarningMFLPalm Beach16 min
Nov 8, 10:59 PM ESTSpecial Weather StatementMFLBroward46 min
Nov 8, 11:01 PM ESTSpecial Marine WarningMFL89 min
Nov 8, 11:04 PM ESTFlash Flood WarningMFLPalm Beach3 hr
Nov 8, 11:56 PM ESTSpecial Marine WarningMFL2 hr
Nov 9, 12:05 AM ESTSpecial Marine WarningMFL85 min
Nov 9, 12:14 AM ESTSpecial Weather StatementMFLPalm Beach46 min
Nov 9, 12:47 AM ESTFlash Flood WarningMFLBroward, Miami-Dade4 hr
Nov 9, 1:00 AM ESTSpecial Weather StatementMFLPalm Beach45 min
Nov 9, 1:15 AM ESTSpecial Weather StatementMFLMiami-Dade30 min
Nov 9, 1:31 AM ESTAreal Flood AdvisoryMFLPalm Beach3 hr
Nov 9, 2:34 AM ESTSpecial Weather StatementMFLBroward41 min
Nov 9, 2:53 AM ESTSpecial Weather StatementMFLPalm Beach52 min
Nov 9, 3:24 AM ESTSpecial Weather StatementMFLPalm Beach51 min
Nov 9, 3:41 AM ESTAreal Flood AdvisoryMFLCollier, Hendry7 hr
Nov 9, 3:44 AM ESTSpecial Marine WarningMFL91 min
Nov 9, 4:02 AM ESTFlash Flood WarningMFLPalm Beach3 hr
Nov 9, 4:20 AM ESTSpecial Weather StatementMFLPalm Beach40 min
Nov 9, 4:42 AM ESTFlash Flood WarningMFLBroward, Miami-Dade10 hr
Nov 9, 4:46 AM ESTSpecial Weather StatementMFLMonroe44 min
Nov 9, 5:18 AM ESTFlash Flood Warning Considerable damage threatMFLBroward, Miami-Dade3 hr
Nov 9, 5:58 AM ESTSpecial Weather StatementMFLCollier47 min
Nov 9, 6:01 AM ESTSpecial Marine WarningMFL119 min
Nov 9, 6:46 AM ESTAreal Flood WarningMFLPalm Beach3 hr
Nov 9, 9:11 AM ESTSpecial Weather StatementMFLBroward49 min
Nov 9, 9:14 AM ESTSpecial Weather StatementMFLMonroe46 min
Nov 9, 9:53 AM ESTSmall Craft AdvisoryMFL69 hr
Nov 9, 9:57 AM ESTSpecial Weather StatementMFLCollier, Hendry, Monroe93 min
Nov 9, 10:46 AM ESTAreal Flood AdvisoryMFLCollier, Hendry3 hr
Nov 9, 10:57 AM ESTSpecial Marine WarningMFL32 min
Nov 9, 11:27 AM ESTSpecial Weather StatementMFLCollier93 min
Nov 9, 2:46 PM ESTAreal Flood WarningMFLBroward, Miami-Dade, Palm Beach16 hr
Nov 9, 5:37 PM ESTSpecial Weather StatementMFLHendry38 min

Nearby

High Surf Advisories in Florida, 2020Every high surf advisory 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.