Alert archive / Florida / Rip Current Statements in 2011

Rip Current Statement 14, NWS Tallahassee, FL

November 16, 2011Walton County, Florida

NWS Tallahassee, FL issued this rip current statement at Nov 16, 2011, 3:05 AM CST for Walton County, Florida. It took effect at Nov 16, 2011, 8:00 AM CST. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Nov 16, 2011, 3:05 AM CST (09:05 UTC)
In effect from
Nov 16, 2011, 8:00 AM CST
Expired
Nov 16, 2011, 6:00 PM CST
In force
10 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 09:08 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, 9.1 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 2011-11-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 101 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, Tallahassee Rgnl, FL at 00:00Z on 2011-11-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 square meters per square second.19395878Sfc1 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
101 J/kg
Mixed-layer CIN
-151 J/kg
Mixed-layer LCL
466 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
56 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

183 
WHUS42 KTAE 160905
CFWTAE

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
405 AM EST WED NOV 16 2011

...A HIGH RIP CURRENT RISK IS IN EFFECT FROM 8 AM CST THIS MORNING
THROUGH THIS AFTERNOON FOR SOUTH WALTON COUNTY...

.A STRONG FRONT WILL APPROACH WALTON COUNTY THIS MORNING AND MOVE
ACROSS LATER TODAY. AHEAD AND ALONG THIS FRONT...SOUTHWEST WINDS
WILL INCREASE TO AROUND 15 MPH...POSSIBLY HIGHER...WITH GUSTS TO
ABOVE 20 MPH. SURF WILL INCREASE TO AROUND FOUR FEET. THIS
COMBINATION WILL GENERATE A HIGH RISK FOR RIP CURRENTS MAINLY THIS
AFTERNOON.  

FLZ108-170000-
/O.NEW.KTAE.RP.S.0014.111116T1400Z-111117T0000Z/
SOUTH WALTON-
305 AM CST WED NOV 16 2011

...HIGH RIP CURRENT RISK IN EFFECT FROM 8 AM CST THIS MORNING
THROUGH THIS AFTERNOON...

* WAVES AND SURF...2 TO 4 FEET. 

* TIMING...THROUGH LATE THIS AFTERNOON.

* IMPACTS...SOUTHWEST FLOW WILL GENERATE STRONG RIP CURRENTS
  ALONG THE BEACHES OF WALTON COUNTY.

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. 

&&

$$

BLOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 15, 8:27 PM CSTDense Fog AdvisoryTAEDixie, Franklin, Gadsden, Gulf, Jefferson, Lafayette and 4 more8 hr
Nov 16, 4:12 AM CSTFire Weather WatchTAEBay, Calhoun, Franklin, Gadsden, Gulf, Holmes and 6 more22 hr
Nov 16, 1:18 PM CSTSpecial Marine WarningTAE72 min
Nov 16, 2:34 PM CSTTornado WarningTAEJackson26 min
Nov 16, 2:40 PM CSTSmall Craft AdvisoryTAE69 hr

Nearby

Rip Current Statements in Florida, 2011Every rip current statement in 2011

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.