Alert archive / Florida / Rip Current Statements in 2020

Rip Current Statement 39, NWS Tallahassee, FL

April 30, 2020Bay County, Gulf County, Florida

NWS Tallahassee, FL issued this rip current statement at Apr 30, 2020, 2:39 AM CDT for Bay County, Gulf County, Florida. It was in force for 25 hr.

The area

The counties it named.

The facts

Issued
Apr 30, 2020, 2:39 AM CDT (07:39 UTC)
Expired
May 1, 2020, 4:00 AM CDT
In force
25 hr
Issued by
NWS Tallahassee, FL

Counties Bay County, FL, Gulf County, FL

The radar

The Eglin Afb radar (KEVX), 71 km from the middle of the area, began a volume at 07:39 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, 7.7 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 2020-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 84 joules per kilogram.LCLLFCEL10008507005003002001001 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 2020-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 197 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
84 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
914 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
197 m²/s²
0-3 km storm-relative helicity
250 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

979 
WHUS42 KTAE 300739
CFWTAE

Coastal Hazard Message
National Weather Service Tallahassee FL
339 AM EDT Thu Apr 30 2020

FLZ112-114-010900-
/O.NEW.KTAE.RP.S.0039.200430T0739Z-200501T0900Z/
Coastal Bay-Coastal Gulf-
339 AM EDT Thu Apr 30 2020 /239 AM CDT Thu Apr 30 2020/

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

* WHAT...Dangerous rip currents.

* WHERE...Bay and Gulf County Beaches.

* WHEN...Through late tonight.

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

* SURF...3 to 4 feet.

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
Apr 29, 7:01 PM CDTSpecial Weather StatementTAEGadsden44 min
Apr 29, 7:11 PM CDTSpecial Marine WarningTAE94 min
Apr 29, 8:39 PM CDTSpecial Marine WarningTAE66 min

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.