Alert archive / Florida / Rip Current Statements in 2017

Rip Current Statement 100, NWS Tallahassee, FL

October 21, 2017Walton County, Florida

NWS Tallahassee, FL issued this rip current statement at Oct 21, 2017, 9:34 AM CDT for Walton County, Florida. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Oct 21, 2017, 9:34 AM CDT (14:34 UTC)
Expired
Oct 21, 2017, 6:00 PM CDT
In force
8 hr
Issued by
NWS Tallahassee, FL

County Walton County, FL

The radar

The Eglin Afb radar (KEVX), 25 km from the middle of the area, began a volume at 14:33 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

Tallahassee Rgnl, FL (KTLH), launched 12:00Z, 2.6 hours before the alert went out and 181 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, Tallahassee Rgnl, FL at 12:00Z on 2017-10-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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, Tallahassee Rgnl, FL at 12:00Z on 2017-10-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 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
2 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
921 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
116 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

119 
WHUS42 KTAE 211434
CFWTAE

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1034 AM EDT SAT OCT 21 2017

...HIGH RISK OF RIP CURRENTS ALONG WALTON COUNTY BEACHES...

.EAST TO SOUTHEAST WINDS AT 10 TO 15 MPH TODAY WITH SURF
HEIGHTS OF 1 TO 3 FEET WILL RESULT IN A HIGH RISK OF RIP
CURRENTS ALONG WALTON COUNTY BEACHES. 

FLZ108-212245-
/O.NEW.KTAE.RP.S.0100.171021T1434Z-171021T2300Z/
SOUTH WALTON-
934 AM CDT SAT OCT 21 2017

...HIGH RIP CURRENT RISK IN EFFECT UNTIL 6 PM CDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A HIGH RIP
CURRENT RISK, WHICH IS IN EFFECT UNTIL 6 PM CDT THIS EVENING. 

* TIMING...TODAY. 

* IMPACTS...FREQUEST AND STRONG RIP CURRENTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THERE IS A HIGH RISK OF RIP CURRENTS.

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE. THEY OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN THE
SANDBAR...AS WELL AS IN THE VICINITY OF JETTIES AND PIERS.

HEED THE ADVICE OF LIFEGUARDS...BEACH PATROL FLAGS...AND SIGNS
BEFORE ENTERING THE WATER. IF CAUGHT IN A RIP CURRENT DO NOT SWIM
AGAINST IT. FACE THE SHORE AND SIGNAL FOR HELP. FLOAT OR TREAD
WATER UNTIL THE CURRENT ENDS OR UNTIL RESCUED.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 21, 2:16 PM CDTSmall Craft AdvisoryTAE12 hr

Nearby

Rip Current Statements in Florida, 2017Every rip current statement in 2017

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.