Alert archive / Florida / Rip Current Statements in 2015

Rip Current Statement 77, NWS Tallahassee, FL

September 11, 2015Bay County, Franklin County, Florida

NWS Tallahassee, FL issued this rip current statement at Sep 11, 2015, 10:30 AM CDT for Bay County, Franklin County, Florida. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued: Sep 11, 2015, 10:30 AM CDT (15:30 UTC)
Expired: Sep 11, 2015, 11:00 PM CDT
In force: 13 hr
Issued by: NWS Tallahassee, FL

Counties Bay County, FL, Franklin County, FL

The radar

The Eglin Afb radar (KEVX), 90 km from the middle of the area, began a volume at 15:33 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, 3.5 hours before the alert went out and 97 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 357 J/kg
Mixed-layer CIN: -94 J/kg
Mixed-layer LCL: 902 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 82 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

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

332 
WHUS42 KTAE 111530
CFWTAE

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE TALLAHASSEE FL
1130 AM EDT FRI SEP 11 2015

...HIGH RISK FOR RIP CURRENTS TODAY AT FRANKLIN AND BAY COUNTY
BEACHES...

OCCASIONALLY MODERATE WEST TO SOUTHWEST WINDS WILL CONTINUE OUT
AHEAD OF AN APPROACHING COLD FRONT THROUGH SATURDAY...HELPING TO
ENHANCE THE RISK OF RIP CURRENTS AT AREA BEACHES.

FLZ112-115-120400-
/O.NEW.KTAE.RP.S.0077.150911T1530Z-150912T0400Z/
COASTAL BAY-COASTAL FRANKLIN-
1130 AM EDT FRI SEP 11 2015

...HIGH RIP CURRENT RISK IN EFFECT THROUGH THIS EVENING...

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

* TIMING...UNTIL MIDNIGHT.

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...BEACH PATROL
FLAGS AND SIGNS.

IF YOU BECOME CAUGHT IN A RIP CURRENT...YELL FOR HELP. REMAIN
CALM...DO NOT EXHAUST YOURSELF AND STAY AFLOAT WHILE WAITING FOR
HELP. IF YOU HAVE TO SWIM OUT OF A RIP CURRENT...SWIM PARALLEL TO
SHORE AND BACK TOWARD THE BEACH WHEN POSSIBLE. DO NOT ATTEMPT TO
SWIM DIRECTLY AGAINST A RIP CURRENT AS YOU WILL TIRE QUICKLY. 

&&

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 11, 4:58 PM CDT	Special Marine Warning	TAE		47 min

Nearby

Rip Current Statements in Florida, 2015 Every rip current statement in 2015

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.