Alert archive / Florida / Rip Current Statements in 2013

Rip Current Statement 30, NWS Tallahassee, FL

August 18, 2013Bay County, Gulf County, Walton County, Florida

NWS Tallahassee, FL issued this rip current statement at Aug 18, 2013, 1:45 AM CDT for Bay County, Gulf County, Walton County, Florida. It took effect at Aug 18, 2013, 7:00 AM CDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Aug 18, 2013, 1:45 AM CDT (06:45 UTC)
In effect from
Aug 18, 2013, 7:00 AM CDT
Expired
Aug 18, 2013, 7:00 PM CDT
In force
12 hr
Issued by
NWS Tallahassee, FL

Counties Bay County, FL, Gulf County, FL, Walton County, FL

The radar

The Eglin Afb radar (KEVX), 41 km from the middle of the area, began a volume at 06:48 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, 6.8 hours before the alert went out and 134 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 2013-08-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 150 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 2013-08-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -45 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
150 J/kg
Mixed-layer CIN
-104 J/kg
Mixed-layer LCL
789 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
-45 m²/s²
0-3 km storm-relative helicity
25 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.7

Open this sounding in Storm Lab

The text

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

452 
WHUS42 KTAE 180645
CFWTAE

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
245 AM EDT SUN AUG 18 2013

...A HIGH RIP CURRENT RISK IS IN EFFECT THIS MORNING THROUGH THIS
EVENING FOR WALTON...BAY AND GULF COUNTIES...

.PERSISTENT SOUTHERLY FLOW WITH HIGHER GUSTS OVER THE COASTAL
WATERS WILL CAUSE INCREASING SURF TODAY ACROSS THE PANHANDLE
BEACHES. STRONG AND FREQUENT RIP CURRENTS ARE LIKELY INTO THIS
EVENING ALONG WALTON...BAY AND TO A LESSER EXTENT GULF COUNTY
COASTLINES.

FLZ108-112-114-182330-
/O.CAN.KTAE.RP.S.0029.000000T0000Z-130819T0000Z/
/O.NEW.KTAE.RP.S.0030.130818T1200Z-130819T0000Z/
SOUTH WALTON-COASTAL BAY-COASTAL GULF-
245 AM EDT SUN AUG 18 2013 /145 AM CDT SUN AUG 18 2013/

...HIGH RIP CURRENT RISK IN EFFECT FROM 8 AM EDT /7 AM CDT/ THIS
MORNING THROUGH THIS EVENING...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A HIGH RIP
CURRENT RISK...WHICH IS IN EFFECT FROM 8 AM EDT /7 AM CDT/ THIS
MORNING THROUGH THIS EVENING. 

* WAVES AND SURF...BUILDING TO 4 TO 5 FEET.

* TIMING...SURF AND RIP CURRENTS INCREASING THIS MORNING AND
  REMAINING STRONG INTO THIS EVENING.

* IMPACTS...HAZARDOUS CONDITIONS FOR 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. 

&&

$$

BLOCK

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 17, 8:49 PM CDTRiver Flood WarningTAECalhoun9 days
Aug 17, 11:00 PM CDTRiver Flood WarningTAEHolmes, Washington9 days
Aug 17, 11:00 PM CDTRiver Flood WarningTAEWalton12 days
Aug 18, 5:05 AM CDTFlash Flood WatchTAEBay, Calhoun, Dixie, Franklin, Gadsden, Gulf and 10 more38 hr
Aug 18, 5:41 AM CDTSpecial Marine WarningTAE2 hr
Aug 18, 6:37 AM CDTRiver Flood WarningTAEWalton13 hr
Aug 18, 9:08 AM CDTRiver Flood AdvisoryTAECalhoun20 hr
Aug 18, 10:18 AM CDTSpecial Marine WarningTAE27 min
Aug 18, 10:25 AM CDTSpecial Marine WarningTAE50 min
Aug 18, 11:10 AM CDTSpecial Marine WarningTAE50 min
Aug 18, 11:21 AM CDTAreal Flood AdvisoryTAEWalton3 hr
Aug 18, 11:40 AM CDTAreal Flood AdvisoryTAEFranklin3 hr
Aug 18, 12:00 PM CDTSevere Thunderstorm WarningTAEFranklin, Wakulla45 min
Aug 18, 12:08 PM CDTSpecial Weather StatementTAELiberty52 min
Aug 18, 12:14 PM CDTAreal Flood AdvisoryTAEWakulla3 hr
Aug 18, 12:17 PM CDTAreal Flood AdvisoryTAELiberty3 hr
Aug 18, 12:50 PM CDTFlash Flood WarningTAEBay, Walton, Washington3 hr
Aug 18, 1:16 PM CDTFlash Flood WarningTAEFranklin, Wakulla3 hr
Aug 18, 1:48 PM CDTFlash Flood WarningTAEHolmes, Jackson, Washington3 hr
Aug 18, 1:54 PM CDTSevere Thunderstorm WarningTAEWalton51 min
Aug 18, 3:57 PM CDTFlash Flood WarningTAEBay, Holmes, Jackson, Walton, Washington3 hr
Aug 18, 4:09 PM CDTRiver Flood WarningTAEGadsden, Leon11 days
Aug 18, 4:09 PM CDTRiver Flood WarningTAEGadsden, Leon13 days
Aug 18, 4:37 PM CDTSevere Thunderstorm WarningTAEJefferson, Madison, Taylor38 min
Aug 18, 5:22 PM CDTSpecial Weather StatementTAEJefferson53 min

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.