Alert archive / Florida / Rip Current Statements in 2020

Rip Current Statement 111, NWS Tallahassee, FL

December 20, 20204 counties in Florida

NWS Tallahassee, FL issued this rip current statement at Dec 20, 2020, 1:55 AM CST for 4 counties in Florida. It took effect at Dec 20, 2020, 12:00 PM CST. It was in force for 33 hr.

The area

The counties it named.

The facts

Issued
Dec 20, 2020, 1:55 AM CST (07:55 UTC)
In effect from
Dec 20, 2020, 12:00 PM CST
Expired
Dec 21, 2020, 9:00 PM CST
In force
33 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 07:54 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, 7.9 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 2020-12-20Temperature 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°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tallahassee Rgnl, FL at 00:00Z on 2020-12-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 155 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
1106 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
155 m²/s²
0-3 km storm-relative helicity
346 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

796 
WHUS42 KTAE 200755
CFWTAE

Coastal Hazard Message
National Weather Service Tallahassee FL
255 AM EST Sun Dec 20 2020

FLZ108-112-114-115-201600-
/O.NEW.KTAE.RP.S.0111.201220T1800Z-201222T0300Z/
South Walton-Coastal Bay-Coastal Gulf-Coastal Franklin-
255 AM EST Sun Dec 20 2020 /155 AM CST Sun Dec 20 2020/

...HIGH RIP CURRENT RISK IN EFFECT FROM 1 PM EST /NOON CST/ THIS
AFTERNOON THROUGH MONDAY EVENING...

* WHAT...Dangerous rip currents expected.

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

* WHEN...From 1 PM EST /noon CST/ this afternoon through Monday 
  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.

&&

$$
2 follow-up statements
708 
WHUS42 KTAE 210712
CFWTAE

Coastal Hazard Message
National Weather Service Tallahassee FL
212 AM EST Mon Dec 21 2020

FLZ108-112-114-115-220300-
/O.CON.KTAE.RP.S.0111.000000T0000Z-201222T0300Z/
South Walton-Coastal Bay-Coastal Gulf-Coastal Franklin-
212 AM EST Mon Dec 21 2020 /112 AM CST Mon Dec 21 2020/

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

* WHAT...Dangerous rip currents expected.

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

* WHEN...Through Monday 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.

&&

$$
831 
WHUS42 KTAE 211615
CFWTAE

Coastal Hazard Message
National Weather Service Tallahassee FL
1115 AM EST Mon Dec 21 2020

FLZ108-112-115-211715-
/O.CAN.KTAE.RP.S.0111.000000T0000Z-201222T0300Z/
South Walton-Coastal Bay-Coastal Franklin-
1115 AM EST Mon Dec 21 2020 /1015 AM CST Mon Dec 21 2020/

...HIGH RIP CURRENT RISK IS CANCELLED...

Offshore flow and decreasing surf will lead to a lesser risk of
rip currents so the high risk has been cancelled. Please continue
to monitor local beach flags for the latest surf hazards. 

$$

FLZ114-220300-
/O.CON.KTAE.RP.S.0111.000000T0000Z-201222T0300Z/
Coastal Gulf-
1115 AM EST Mon Dec 21 2020 /1015 AM CST Mon Dec 21 2020/

...HIGH RIP CURRENT RISK REMAINS IN EFFECT UNTIL 10 PM EST /9 PM
CST/ THIS EVENING...

* WHAT...Dangerous rip currents expected.

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

* WHEN...Through Monday 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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 20, 1:38 PM CSTSmall Craft AdvisoryTAE17 hr

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.