Alert archive / Florida / Rip Current Statements in 2020

Rip Current Statement 109, NWS Tallahassee, FL

December 16, 20204 counties in Florida

NWS Tallahassee, FL issued this rip current statement at Dec 16, 2020, 11:37 PM CST for 4 counties in Florida. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued
Dec 16, 2020, 11:37 PM CST (05:37 UTC)
Expired
Dec 17, 2020, 6:00 PM CST
In force
18 hr
Issued by
NWS Tallahassee, FL

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

The radar

The Eglin Afb radar (KEVX), 64 km from the middle of the area, began a volume at 05:36 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, 5.6 hours before the alert went out and 116 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 2020-12-17Temperature 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 2020-12-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 114 square meters per square second.1939587897117136Sfc1 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
509 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
114 m²/s²
0-3 km storm-relative helicity
227 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

816 
WHUS42 KTAE 170537
CFWTAE

Coastal Hazard Message
National Weather Service Tallahassee FL
1237 AM EST Thu Dec 17 2020

FLZ112-114-171345-
/O.NEW.KTAE.RP.S.0109.201217T0537Z-201218T0000Z/
Coastal Bay-Coastal Gulf-
1237 AM EST Thu Dec 17 2020 /1137 PM CST Wed Dec 16 2020/

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

* WHAT...Dangerous rip currents.

* WHERE...Bay and Gulf County Beaches.

* WHEN...Through this evening.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

FLZ108-115-171200-
/O.NEW.KTAE.RP.S.0109.201217T0537Z-201217T1200Z/
South Walton-Coastal Franklin-
1237 AM EST Thu Dec 17 2020 /1137 PM CST Wed Dec 16 2020/

...HIGH RIP CURRENT RISK IN EFFECT UNTIL 7 AM EST /6 AM CST/ THIS
MORNING...

* WHAT...Dangerous rip currents.

* WHERE...Walton and Franklin County Beaches.

* WHEN...Until 7 AM EST /6 AM CST/ this morning.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

Nearby

Rip Current Statements in Florida, 2020Every rip current statement in 2020

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.