Alert archive / Florida / High Surf Advisories in 2021

High Surf Advisory 3, NWS Melbourne, FL

November 6, 2021Volusia County, Florida

NWS Melbourne, FL issued this high surf advisory at Nov 6, 2021, 3:54 AM EDT for Volusia County, Florida. It was in force for 3 days.

The area

The counties it named.

The facts

Issued
Nov 6, 2021, 3:54 AM EDT (07:54 UTC)
Expired
Nov 9, 2021, 4:00 AM EST
In force
3 days
Issued by
NWS Melbourne, FL

County Volusia County, FL

The radar

The Melbourne radar (KMLB), 116 km from the middle of the area, began a volume at 07:54 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

Cape Canaveral, FL (KXMR), launched 00:00Z, 7.9 hours before the alert went out and 91 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, Cape Canaveral, FL at 00:00Z on 2021-11-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 692 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cape Canaveral, FL at 00:00Z on 2021-11-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 184 square meters per square second.1939587897Sfc1 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
692 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
701 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
184 m²/s²
0-3 km storm-relative helicity
238 m²/s²
Significant tornado parameter
0.7
Supercell composite
6.8

Open this sounding in Storm Lab

The text

As transmitted.

764 
WHUS42 KMLB 060754
CFWMLB

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Melbourne FL
354 AM EDT Sat Nov 6 2021

FLZ047-054-059-064-141-147-071000-
/O.UPG.KMLB.CF.Y.0001.000000T0000Z-211108T1700Z/
/O.NEW.KMLB.CF.W.0001.211106T0754Z-211108T1700Z/
/O.NEW.KMLB.SU.Y.0003.211106T0754Z-211108T0900Z/
/O.EXT.KMLB.RP.S.0030.000000T0000Z-211108T0900Z/
Southern Brevard-Indian River-St. Lucie-Martin-Coastal Volusia-
Northern Brevard-
354 AM EDT Sat Nov 6 2021

...COASTAL FLOOD WARNING IN EFFECT UNTIL NOON EST MONDAY...
...HIGH SURF ADVISORY IN EFFECT UNTIL 4 AM EST MONDAY...
...HIGH RIP CURRENT RISK NOW IN EFFECT THROUGH LATE SUNDAY
NIGHT...

* WHAT...For the Coastal Flood Warning, moderate coastal flooding
  and minor beach erosion possible this morning and the mornings
  of Sunday and Monday due to high astronomical high tides and
  increasing winds. For the High Surf Advisory, large breaking
  waves of 9 to 10 feet in the surf zone east of Volusia and 7 to
  8 feet south of Cape Canaveral today. For the High Rip Current
  Risk, dangerous rip currents and rough surf.

* WHERE...Coastal Volusia, Northern and Southern Brevard, Indian
  River, St. Lucie, and Martin counties.

* WHEN...For the Coastal Flood Warning, until noon EST Monday. 
  For the High Surf Advisory, until 4 AM EST Monday. For the 
  High Rip Current Risk, through late Sunday night.

* IMPACTS...Some flooding of low-lying lots, parks and roadways
  may occur near the shoreline during high tide. Only isolated 
  road closures are expected. Dangerous swimming and surfing 
  conditions and localized beach erosion. Rip currents can sweep 
  even the best swimmers away from shore into deeper water.

* ADDITIONAL DETAILS...Timing of the highest tides along the east
  central Florida coast are as follows: Today Saturday from 930 
  to 10 am, Sunday November 7 from 920 to 950 am, and Monday 
  November 8 from 1010 to 1050am.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Coastal flooding is occurring or imminent. Coastal residents in
the warned area should be alert for rising water, and take
appropriate action to protect life and property. If travel is
required, do not drive around barricades or through water of
unknown depth.

High surf will affect the beaches in the advisory area, producing
localized beach erosion and dangerous swimming conditions.
Swimmers should remain out of the water due to large breaking
waves and dangerous surf conditions.

Rip currents are powerful channels of water flowing quickly away
from shore, which occur most often at low spots or breaks in the
sandbar and in the vicinity of structures such as jetties and
piers. Heed the advice of lifeguards, beach patrol flags and
signs. If caught in a rip current, relax and float. Don't swim 
against the current. If able, swim in a direction following the 
shoreline. If unable to escape, face the shore and call or wave 
for help.

&&

$$
6 follow-up statements
381 
WHUS42 KMLB 061451
CFWMLB

Coastal Hazard Message
National Weather Service Melbourne FL
1051 AM EDT Sat Nov 6 2021

FLZ047-054-059-064-141-147-071000-
/O.CON.KMLB.CF.W.0001.000000T0000Z-211108T1700Z/
/O.CON.KMLB.SU.Y.0003.000000T0000Z-211108T0900Z/
/O.CON.KMLB.RP.S.0030.000000T0000Z-211108T0900Z/
Southern Brevard-Indian River-St. Lucie-Martin-Coastal Volusia-
Northern Brevard-
1051 AM EDT Sat Nov 6 2021

...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL NOON EST
MONDAY...
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST MONDAY...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH LATE SUNDAY
NIGHT...

* WHAT...For the Coastal Flood Warning, moderate coastal flooding
  and minor beach erosion possible this morning and the mornings
  of Sunday and Monday due to high astronomical high tides and
  increasing winds. For the High Surf Advisory, large breaking
  waves of 8 to 9 feet in the surf zone of Volusia county and 7 to
  8 feet from Brevard county southward. For the High Rip Current 
  Risk, dangerous rip currents and rough surf.

* WHERE...Coastal Volusia, Northern and Southern Brevard, Indian 
  River, St. Lucie, and Martin counties.

* WHEN...For the Coastal Flood Warning, until noon EST Monday. 
  For the High Surf Advisory, until 4 AM EST Monday. For the 
  High Rip Current Risk, through late Sunday night.

* IMPACTS...Some flooding of low-lying lots, parks and roadways 
  may occur near the shoreline during high tide. Only isolated 
  road closures are expected. Dangerous swimming and surfing 
  conditions and localized beach erosion. Rip currents can sweep 
  even the best swimmers away from shore into deeper water.

* ADDITIONAL DETAILS...Timing of the highest tides along the east
  central Florida coast are as follows: Sunday November 7 from 
  920 to 950 am, and Monday November 8 from 1010 to 1050am.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Coastal flooding is occurring or imminent. Coastal residents in
the warned area should be alert for rising water, and take
appropriate action to protect life and property. If travel is
required, do not drive around barricades or through water of
unknown depth.

High surf will affect the beaches in the advisory area, producing
localized beach erosion and dangerous swimming conditions.
Swimmers should remain out of the water due to large breaking
waves and dangerous surf conditions.

Rip currents are powerful channels of water flowing quickly away
from shore, which occur most often at low spots or breaks in the
sandbar and in the vicinity of structures such as jetties and
piers. Heed the advice of lifeguards, beach patrol flags and
signs.

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$
460 
WHUS42 KMLB 070800
CFWMLB

Coastal Hazard Message
National Weather Service Melbourne FL
300 AM EST Sun Nov 7 2021

FLZ047-054-059-064-141-147-080900-
/O.EXT.KMLB.RP.S.0030.000000T0000Z-211109T0000Z/
/O.CON.KMLB.CF.W.0001.000000T0000Z-211108T1700Z/
/O.CON.KMLB.SU.Y.0003.000000T0000Z-211108T0900Z/
Southern Brevard-Indian River-St. Lucie-Martin-Coastal Volusia-
Northern Brevard-
300 AM EST Sun Nov 7 2021

...HIGH RIP CURRENT RISK NOW IN EFFECT THROUGH MONDAY EVENING...
...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL NOON EST
MONDAY...
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST MONDAY...

* WHAT...For the Coastal Flood Warning, moderate coastal flooding
  and minor to moderate beach erosion possible this morning and
  Monday morning due to high astronomical high tides and strong
  winds. For the High Surf Advisory, large breaking waves of 9 to
  10 feet in the surf zone of Volusia and northern Brevard 
  counties and 8 to 9 feet from the Cape southward to Martin 
  county. For the High Rip Current Risk, dangerous rip currents 
  and rough surf.

* WHERE...Coastal Volusia, Northern and Southern Brevard, Indian
  River, St. Lucie, and Martin counties.

* WHEN...For the Coastal Flood Warning, until noon EST Monday. 
  For the High Surf Advisory, until 4 AM EST Monday. For the 
  High Rip Current Risk, through Monday evening.

* IMPACTS...Some flooding of low-lying lots, parks and roadways
  may occur near the shoreline during high tide. Only isolated
  road closures are expected. Dangerous swimming and surfing
  conditions and localized beach erosion. Rip currents can sweep
  even the best swimmers away from shore into deeper water.

* ADDITIONAL DETAILS...Timing of the highest tides along the east
  central Florida coast are as follows: Today, November 7 from 9
  to 10 am, Monday November 8 from 10 to 11 am, and Tuesday 
  November 9 from 11 am to noon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Coastal flooding is occurring or imminent. Coastal residents in
the warned area should be alert for rising water, and take
appropriate action to protect life and property. If travel is
required, do not drive around barricades or through water of
unknown depth.

High surf will affect the beaches in the advisory area, producing
localized beach erosion and dangerous swimming conditions.
Swimmers should remain out of the water due to large breaking
waves and dangerous surf conditions.

Rip currents are powerful channels of water flowing quickly away
from shore, which occur most often at low spots or breaks in the
sandbar and in the vicinity of structures such as jetties and
piers. Heed the advice of lifeguards, beach patrol flags and
signs. If caught in a rip current, relax and float. Don't swim 
against the current. If able, swim in a direction following the 
shoreline. If unable to escape, face the shore and call or wave 
for help.

&&

$$
973 
WHUS42 KMLB 071915
CFWMLB

Coastal Hazard Message
National Weather Service Melbourne FL
215 PM EST Sun Nov 7 2021

FLZ047-054-059-064-141-147-082100-
/O.EXT.KMLB.SU.Y.0003.000000T0000Z-211109T0900Z/
/O.EXT.KMLB.RP.S.0030.000000T0000Z-211109T0900Z/
/O.CON.KMLB.CF.W.0001.000000T0000Z-211108T1700Z/
Southern Brevard-Indian River-St. Lucie-Martin-Coastal Volusia-
Northern Brevard-
215 PM EST Sun Nov 7 2021

...HIGH SURF ADVISORY NOW IN EFFECT UNTIL 4 AM EST TUESDAY...
...HIGH RIP CURRENT RISK NOW IN EFFECT THROUGH LATE MONDAY
NIGHT...
...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL NOON EST
MONDAY...

* WHAT...For the Coastal Flood Warning, moderate coastal flooding
  and minor to moderate beach erosion possible Monday morning due
  to high astronomical high tides and strong winds. For the High
  Surf Advisory, large breaking waves of 7 to 9 feet in the surf 
  zone of Volusia and northern Brevard counties and 6 to 8 feet 
  from the Cape southward to Martin county. For the High Rip 
  Current Risk, dangerous rip currents and rough surf.

* WHERE...Coastal Volusia, Northern and Southern Brevard, Indian 
  River, St. Lucie, and Martin counties.

* WHEN...For the Coastal Flood Warning, until noon EST Monday. 
  For the High Surf Advisory, until 4 AM EST Tuesday. For the 
  High Rip Current Risk, through late Monday night.

* IMPACTS...Some flooding of low-lying lots, parks and roadways 
  may occur near the shoreline during high tide. Only isolated 
  road closures are expected. Dangerous swimming and surfing 
  conditions and localized beach erosion. Rip currents can sweep 
  even the best swimmers away from shore into deeper water.

* ADDITIONAL DETAILS...Timing of the highest tides along the east
  central Florida coast are as follows: Monday November 8 from 10
  to 11 am and Tuesday November 9 from 11 am to noon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Coastal flooding is occurring or imminent. Coastal residents in
the warned area should be alert for rising water, and take
appropriate action to protect life and property. If travel is
required, do not drive around barricades or through water of
unknown depth.

High surf will affect the beaches in the advisory area, producing
localized beach erosion and dangerous swimming conditions.
Swimmers should remain out of the water due to large breaking
waves and dangerous surf conditions.

Rip currents are powerful channels of water flowing quickly away
from shore, which occur most often at low spots or breaks in the
sandbar and in the vicinity of structures such as jetties and
piers. Heed the advice of lifeguards, beach patrol flags and
signs.

&&

$$
540 
WHUS42 KMLB 080854
CFWMLB

Coastal Hazard Message
National Weather Service Melbourne FL
354 AM EST Mon Nov 8 2021

FLZ047-054-059-064-141-147-082100-
/O.EXT.KMLB.CF.W.0001.000000T0000Z-211108T2000Z/
/O.EXT.KMLB.RP.S.0030.000000T0000Z-211110T0800Z/
/O.CON.KMLB.SU.Y.0003.000000T0000Z-211109T0900Z/
Southern Brevard-Indian River-St. Lucie-Martin-Coastal Volusia-
Northern Brevard-
354 AM EST Mon Nov 8 2021

...COASTAL FLOOD WARNING NOW IN EFFECT UNTIL 3 PM EST THIS
AFTERNOON...
...HIGH RIP CURRENT RISK NOW IN EFFECT THROUGH LATE TUESDAY
NIGHT...
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST TUESDAY...

* WHAT...For the Coastal Flood Warning, minor to moderate coastal
  flooding and minor to moderate beach erosion possible this
  morning due to high astronomical high tides and strong winds.
  For the High Surf Advisory, large breaking waves of 7 to 9 feet
  in the surf zone of Volusia and northern Brevard counties and 6
  to 8 feet from the Cape southward to Martin county. For the 
  High Rip Current Risk, dangerous rip currents.

* WHERE...Martin, Coastal Volusia, Northern Brevard, Southern 
  Brevard, St. Lucie and Indian River Counties.

* WHEN...For the Coastal Flood Warning, until 3 PM EST this 
  afternoon. For the High Surf Advisory, until 4 AM EST Tuesday. 
  For the High Rip Current Risk, through late Tuesday night.

* IMPACTS...Some flooding of low-lying lots, parks and roadways
  may occur near the shoreline during high tide. Only isolated
  road closures are expected. Dangerous swimming and surfing
  conditions and localized beach erosion. Rip currents can sweep
  even the best swimmers away from shore into deeper water.

* ADDITIONAL DETAILS...Timing of the highest tides along the east
  central Florida coast are as follows: Today November 8 from 10 
  to 11 am and Tuesday November 9 from 11 am to noon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Coastal flooding is occurring or imminent. Coastal residents in
the warned area should be alert for rising water, and take
appropriate action to protect life and property. If travel is
required, do not drive around barricades or through water of
unknown depth.

High surf will affect the beaches in the advisory area, producing
localized beach erosion and dangerous swimming conditions.
Swimmers should remain out of the water due to large breaking
waves and dangerous surf conditions.

Rip currents are powerful channels of water flowing quickly away
from shore, which occur most often at low spots or breaks in the
sandbar and in the vicinity of structures such as jetties and
piers. Heed the advice of lifeguards, beach patrol flags and
signs. If caught in a rip current, relax and float. Don't swim 
against the current. If able, swim in a direction following the 
shoreline. If unable to escape, face the shore and call or wave 
for help.

&&

$$
289 
WHUS42 KMLB 081940
CFWMLB

Coastal Hazard Message
National Weather Service Melbourne FL
240 PM EST Mon Nov 8 2021

FLZ047-054-059-064-141-147-090900-
/O.EXP.KMLB.CF.W.0001.000000T0000Z-211108T2000Z/
/O.NEW.KMLB.CF.Y.0002.211108T2000Z-211109T1900Z/
/O.CON.KMLB.SU.Y.0003.000000T0000Z-211109T0900Z/
/O.CON.KMLB.RP.S.0030.000000T0000Z-211110T0800Z/
Southern Brevard-Indian River-St. Lucie-Martin-Coastal Volusia-
Northern Brevard-
240 PM EST Mon Nov 8 2021

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 4 AM EST TUESDAY...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH LATE TUESDAY
NIGHT...
...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 2 PM EST TUESDAY...

* WHAT...For the High Surf Advisory, large breaking waves of 6 to
  8 feet in the surf zone of Volusia and northern Brevard counties
  and 5 to 7 feet from the Cape southward to Martin county. For 
  the High Rip Current Risk, dangerous rip currents. For the 
  Coastal Flood Advisory, minor coastal flooding and minor beach 
  erosion possible Tuesday morning due to high astronomical high 
  tides and breezy onshore winds.

* WHERE...Southern Brevard, Indian River, St. Lucie, Martin, 
  Coastal Volusia and Northern Brevard Counties.

* WHEN...For the High Surf Advisory, until 4 AM EST Tuesday. For 
  the Coastal Flood Advisory, until 2 PM EST Tuesday. For the 
  High Rip Current Risk, through late Tuesday night.

* IMPACTS...Some flooding of low-lying lots, parks and roadways 
  may occur near the shoreline. Only isolated road closures are 
  expected. Dangerous swimming and surfing conditions and 
  localized beach erosion. Rip currents can sweep even the best 
  swimmers away from shore into deeper water.

* ADDITIONAL DETAILS...The next highest high tide is expected 
  tomorrow, Tuesday, November 9 from 11 am to noon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Onshore winds and above normal tides will combine to generate
flooding of low areas along the shore. Do not drive around
barricades or through water of unknown depth. Take the necessary
actions to protect flood-prone property.

High surf will affect the beaches in the advisory area, producing
localized beach erosion and dangerous swimming conditions.
Swimmers should remain out of the water due to large breaking
waves and dangerous surf conditions.

Rip currents are powerful channels of water flowing quickly away
from shore, which occur most often at low spots or breaks in the
sandbar and in the vicinity of structures such as jetties and
piers. Heed the advice of lifeguards, beach patrol flags and
signs.

&&

$$
851 
WHUS42 KMLB 090907
CFWMLB

Coastal Hazard Message
National Weather Service Melbourne FL
407 AM EST Tue Nov 9 2021

FLZ047-054-059-064-141-147-100800-
/O.EXP.KMLB.SU.Y.0003.000000T0000Z-211109T0900Z/
/O.CON.KMLB.CF.Y.0002.000000T0000Z-211109T1900Z/
/O.CON.KMLB.RP.S.0030.000000T0000Z-211110T0800Z/
Southern Brevard-Indian River-St. Lucie-Martin-Coastal Volusia-
Northern Brevard-
407 AM EST Tue Nov 9 2021

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 2 PM EST THIS
AFTERNOON...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH LATE TONIGHT...
...HIGH SURF ADVISORY HAS EXPIRED...

* WHAT...For the Coastal Flood Advisory, minor coastal flooding
  and beach erosion possible late this morning and early afternoon
  due to high astronomical high tides and breezy onshore winds. 
  For the High Rip Current Risk, dangerous rip currents.

* WHERE...Martin, Coastal Volusia, Northern Brevard, Southern 
  Brevard, St. Lucie and Indian River Counties.

* WHEN...For the Coastal Flood Advisory, until 2 PM EST this 
  afternoon. For the High Rip Current Risk, through late tonight.

* IMPACTS...Some flooding of low-lying lots, parks and roadways
  may occur near the shoreline. Only isolated road closures are
  expected. Dangerous swimming and surfing conditions and
  localized beach erosion. Rip currents can sweep even the best 
  swimmers away from shore into deeper water.

* ADDITIONAL DETAILS...The next highest high tide is expected
  today, Tuesday, November 9 from 11 am to noon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Onshore winds and above normal tides will combine to generate
flooding of low areas along the shore. Do not drive around
barricades or through water of unknown depth. Take the necessary
actions to protect flood-prone property.

Rip currents are powerful channels of water flowing quickly away
from shore, which occur most often at low spots or breaks in the
sandbar and in the vicinity of structures such as jetties and
piers. Heed the advice of lifeguards, beach patrol flags and
signs. If caught in a rip current, relax and float. Don't swim 
against the current. If able, swim in a direction following the 
shoreline. If unable to escape, face the shore and call or wave 
for help.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 5, 10:50 PM EDTSpecial Weather StatementMLBOkeechobee40 min
Nov 5, 11:26 PM EDTSpecial Weather StatementMLBOkeechobee49 min
Nov 6, 12:03 AM EDTSpecial Weather StatementMLBIndian River57 min
Nov 6, 3:54 AM EDTCoastal Flood WarningMLBVolusia60 hr
Nov 6, 4:06 AM EDTSmall Craft AdvisoryMLB5 days

Nearby

High Surf Advisories in Florida, 2021Every high surf advisory in 2021

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.