Alert archive / Florida / Rip Current Statements in 2017

Rip Current Statement 24, NWS Tallahassee, FL

February 21, 2017Bay County, Walton County, Florida

NWS Tallahassee, FL issued this rip current statement at Feb 21, 2017, 2:28 AM CST for Bay County, Walton County, Florida. It took effect at Feb 21, 2017, 4:00 AM CST. It was in force for 20 hr.

The area

The counties it named.

The facts

Issued
Feb 21, 2017, 2:28 AM CST (08:28 UTC)
In effect from
Feb 21, 2017, 4:00 AM CST
Expired
Feb 22, 2017, 12:00 AM CST
In force
20 hr
Issued by
NWS Tallahassee, FL

Counties Bay County, FL, Walton County, FL

The radar

The Eglin Afb radar (KEVX), 15 km from the middle of the area, began a volume at 08:27 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 154 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 2017-02-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2017-02-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -26 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1699 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-26 m²/s²
0-3 km storm-relative helicity
59 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

165 
WHUS42 KTAE 210828
CFWTAE

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
328 AM EST TUE FEB 21 2017

...HIGH RISK OF RIP CURRENTS TODAY ALONG WALTON AND BAY COUNTY
BEACHES...

.STRONG WINDS FROM THE SOUTHEAST ALONG BAY AND WALTON COUNTY
BEACHES, ALONG WITH 3 TO 4 FOOT SURF HEIGHTS WILL INCREASE THE
LIKELIHOOD OF RIP CURRENTS TODAY.

FLZ108-112-220600-
/O.NEW.KTAE.RP.S.0024.170221T1000Z-170222T0600Z/
SOUTH WALTON-COASTAL BAY-
328 AM EST TUE FEB 21 2017 /228 AM CST TUE FEB 21 2017/

...HIGH RIP CURRENT RISK IN EFFECT THROUGH LATE TONIGHT...

THE NATIONAL WEATHER SERVICE IN TALLAHASSEE HAS ISSUED A HIGH RIP
CURRENT RISK, WHICH IS IN EFFECT THROUGH LATE TONIGHT. 

* TIMING...RIP CURRENTS INCREASING THROUGH THE DAY.

* IMPACTS...FREQUENT RIP CURRENTS CAUSING HAZARDOUS SWIMMING
  CONDITIONS.

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.

&&

$$

MOORE

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 21, 1:34 PM CSTSpecial Marine WarningTAE56 min
Feb 21, 2:25 PM CSTSpecial Marine WarningTAE2 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.