Alert archive / Florida / Rip Current Statements in 2021

Rip Current Statement 23, NWS Melbourne, FL

August 20, 2021Volusia County, Florida

NWS Melbourne, FL issued this rip current statement at Aug 20, 2021, 5:03 AM EDT for Volusia County, Florida. It was in force for 39 hr.

The area

The counties it named.

The facts

Issued
Aug 20, 2021, 5:03 AM EDT (09:03 UTC)
Expired
Aug 21, 2021, 8:00 PM EDT
In force
39 hr
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 09:04 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, 9.1 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 2021-08-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 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 2021-08-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1519 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
39 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

805 
WHUS42 KMLB 200903
CFWMLB

Coastal Hazard Message
National Weather Service Melbourne FL
503 AM EDT Fri Aug 20 2021

FLZ047-054-059-064-141-147-210800-
/O.NEW.KMLB.RP.S.0023.210820T0903Z-210821T0800Z/
Southern Brevard-Indian River-St. Lucie-Martin-Coastal Volusia-
Northern Brevard-
503 AM EDT Fri Aug 20 2021

...HIGH RIP CURRENT RISK IN EFFECT THROUGH LATE TONIGHT...

* WHAT...Numerous Strong, dangerous rip currents expected.

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

* WHEN...The threat for rip currents will be high through late
  tonight and possibly extend into Saturday as well. Rip currents
  will be most frequent today from mid morning through mid 
  afternoon.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

Due to the dangerous rip current conditions that are expected
today, entering the water is not advised.

&&

$$
1 follow-up statement
949 
WHUS42 KMLB 210754
CFWMLB

Coastal Hazard Message
National Weather Service Melbourne FL
354 AM EDT Sat Aug 21 2021

FLZ047-054-059-064-141-147-220000-
/O.CAN.KMLB.RP.S.0022.000000T0000Z-210821T0800Z/
/O.EXT.KMLB.RP.S.0023.000000T0000Z-210822T0000Z/
Southern Brevard-Indian River-St. Lucie-Martin-Coastal Volusia-
Northern Brevard-
354 AM EDT Sat Aug 21 2021

...HIGH RIP CURRENT RISK NOW IN EFFECT THROUGH THIS EVENING...

* WHAT...Numerous Strong, dangerous rip currents expected.

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

* WHEN...The threat for rip currents will be high all day with the
  highest threat from late morning through late afternoon.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

Due to the dangerous rip current conditions that are expected
today, entering the water is not advised.&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 20, 3:27 AM EDTRip Current StatementMLBVolusia24 hr
Aug 20, 2:21 PM EDTSpecial Weather StatementMLBVolusia39 min
Aug 20, 3:18 PM EDTSpecial Weather StatementMLBSeminole42 min
Aug 20, 3:49 PM EDTSpecial Weather StatementMLBSeminole41 min
Aug 20, 4:31 PM EDTSpecial Weather StatementMLBOsceola44 min
Aug 20, 4:59 PM EDTSpecial Weather StatementMLBOrange31 min
Aug 20, 5:33 PM EDTSpecial Weather StatementMLBOsceola27 min

Nearby

Rip Current Statements in Florida, 2021Every rip current statement 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.