Alert archive / Florida / Rip Current Statements in 2021

Rip Current Statement 124, NWS Tallahassee, FL

December 20, 2021Bay County, Gulf County, Walton County, Florida

NWS Tallahassee, FL issued this rip current statement at Dec 20, 2021, 3:12 AM CST for Bay County, Gulf County, Walton County, Florida. It took effect at Dec 20, 2021, 5:00 AM CST. It was in force for 19 hr.

The area

The counties it named.

The facts

Issued
Dec 20, 2021, 3:12 AM CST (09:12 UTC)
In effect from
Dec 20, 2021, 5:00 AM CST
Expired
Dec 21, 2021, 12:00 AM CST
In force
19 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 09:15 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, 9.2 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 2021-12-20Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 00:00Z on 2021-12-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -30 square meters per square second.1939587897Sfc1 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
841 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
-30 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

630 
WHUS42 KTAE 200912
CFWTAE

Coastal Hazard Message
National Weather Service Tallahassee FL
412 AM EST Mon Dec 20 2021

FLZ108-112-114-201715-
/O.NEW.KTAE.RP.S.0124.211220T1100Z-211221T0600Z/
South Walton-Coastal Bay-Coastal Gulf-
412 AM EST Mon Dec 20 2021 /312 AM CST Mon Dec 20 2021/

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

* WHAT...Dangerous rip currents expected.

* WHERE...Walton, Bay, and Gulf County Beaches.

* WHEN...Through late tonight.

* 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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 20, 2:54 AM CSTSmall Craft AdvisoryTAE39 hr

Nearby

Rip Current Statements in Florida, 2021Every rip current statement in 2021

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.