Alert archive / Florida / Rip Current Statements in 2018

Rip Current Statement 23, NWS Melbourne, FL

September 11, 2018Volusia County, Florida

NWS Melbourne, FL issued this rip current statement at Sep 11, 2018, 3:20 AM EDT for Volusia County, Florida. It took effect at Sep 11, 2018, 5:00 AM EDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Sep 11, 2018, 3:20 AM EDT (07:20 UTC)
In effect from
Sep 11, 2018, 5:00 AM EDT
Expired
Sep 11, 2018, 8:00 PM EDT
In force
15 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 07:19 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, 7.3 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 2018-09-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1412 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 2018-09-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 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
1412 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
1083 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

906 
WHUS42 KMLB 110720
CFWMLB

Coastal Hazard Message
National Weather Service Melbourne FL
320 AM EDT Tue Sep 11 2018


FLZ047-054-059-064-141-147-120000-
/O.NEW.KMLB.RP.S.0023.180911T0900Z-180912T0000Z/
Southern Brevard County-Indian River-St. Lucie-Martin-
Coastal Volusia County-Northern Brevard County-
320 AM EDT Tue Sep 11 2018

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

The National Weather Service in Melbourne has issued a High Rip
Current Risk, which is in effect through this evening. 

* TIMING...The threat for strong rip currents will be present all
  day, however the risk will be highest during the afternoon due 
  to tidal effects. 

* IMPACTS...Life threatening rip currents and rough surf are 
  likely today.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

There is a high risk of rip currents.

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.

&&

$$

Kelly

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 10, 8:00 PM EDTSpecial Weather StatementMLBOrange60 min
Sep 10, 9:39 PM EDTSpecial Marine WarningMLB96 min
Sep 11, 6:19 PM EDTSpecial Weather StatementMLBOrange26 min
Sep 11, 6:46 PM EDTAreal Flood AdvisoryMLBLake, Orange59 min

Nearby

Rip Current Statements in Florida, 2018Every rip current statement in 2018

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.