Alert archive / Florida / Rip Current Statements in 2013

Rip Current Statement 33, NWS Tallahassee, FL

September 20, 2013Walton County, Florida

NWS Tallahassee, FL issued this rip current statement at Sep 20, 2013, 3:30 AM CDT for Walton County, Florida. It took effect at Sep 20, 2013, 7:00 AM CDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Sep 20, 2013, 3:30 AM CDT (08:30 UTC)
In effect from
Sep 20, 2013, 7:00 AM CDT
Expired
Sep 20, 2013, 7:00 PM CDT
In force
12 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 08:33 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 00:00Z, 8.5 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 00:00Z on 2013-09-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 41 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 00:00Z on 2013-09-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 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
41 J/kg
Mixed-layer CIN
-150 J/kg
Mixed-layer LCL
1643 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

469 
WHUS42 KTAE 200830
CFWTAE

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
430 AM EDT FRI SEP 20 2013

...THERE IS A HIGH RISK FOR RIP CURRENTS TODAY ALONG THE WALTON 
COUNTY BEACHES AND A MODERATE RISK ELSEWHERE...

FLZ108-210000-
/O.NEW.KTAE.RP.S.0033.130920T1200Z-130921T0000Z/
SOUTH WALTON-
330 AM CDT FRI SEP 20 2013

...A HIGH RIP CURRENT RISK IN EFFECT FROM 7 AM CDT THIS MORNING
THROUGH THIS EVENING FOR COASTAL WALTON COUNTY...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A HIGH RIP
CURRENT RISK...WHICH IS IN EFFECT FROM 7 AM CDT THIS MORNING
THROUGH THIS EVENING. 

* SURF...2 TO 3 FEET WITH HIGHER SETS.

* TIMING...TODAY.

* WINDS....SOUTHEAST AT 10 TO 15 MPH.

* IMPACTS...WIND AND SURF CONDITIONS SUPPORT DANGEROUS RIP
  CURRENTS TODAY. RIP CURRENTS WILL BE LIFE THREATENING TO ANYONE
  ENTERING THE WATER.

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 GROINS...JETTIES AND PIERS. HEED
THE ADVICE OF LIFEGUARDS AND THE BEACH PATROL. PAY ATTENTION TO
FLAGS AND POSTED SIGNS. IF YOU BECOME CAUGHT IN A RIP CURRENT...
DO NOT PANIC. REMAIN CALM AND BEGIN TO SWIM PARALLEL TO SHORE.
ONCE YOU ARE AWAY FROM THE FORCE OF THE RIP CURRENT...BEGIN TO
SWIM BACK TO THE BEACH. DO NOT ATTEMPT TO SWIM DIRECTLY AGAINST A
RIP CURRENT. EVEN A STRONG SWIMMER CAN BECOME EXHAUSTED QUICKLY. 

&&

$$

17-GOULD

Nearby

Rip Current Statements in Florida, 2013Every rip current statement in 2013

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.