Alert archive / Florida / Rip Current Statements in 2021

Rip Current Statement 12, NWS Tampa Bay, FL

April 11, 20216 counties in Florida

NWS Tampa Bay, FL issued this rip current statement at Apr 11, 2021, 9:14 AM EDT for 6 counties in Florida. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Apr 11, 2021, 9:14 AM EDT (13:14 UTC)
Expired
Apr 12, 2021, 12:00 AM EDT
In force
15 hr
Issued by
NWS Tampa Bay, FL

Counties Charlotte County, FL, Hillsborough County, FL, Lee County, FL, Manatee County, FL, Pinellas County, FL, Sarasota County, FL

The radar

The Tampa radar (KTBW), 44 km from the middle of the area, began a volume at 13:16 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

Tampa Bay, FL (KTBW), launched 12:00Z, 1.2 hours before the alert went out and 43 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, Tampa Bay, FL at 12:00Z on 2021-04-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1004 joules per kilogram.LCLLFCEL10008507005003002001001 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, Tampa Bay, FL at 12:00Z on 2021-04-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 288 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
1004 J/kg
Mixed-layer CIN
-131 J/kg
Mixed-layer LCL
1005 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
288 m²/s²
0-3 km storm-relative helicity
296 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.3

Open this sounding in Storm Lab

The text

As transmitted.

321 
WHUS42 KTBW 111314
CFWTBW

Coastal Hazard Message
National Weather Service Tampa Bay Ruskin FL
914 AM EDT Sun Apr 11 2021

FLZ050-151-155-160-162-165-120400-
/O.NEW.KTBW.RP.S.0012.210411T1314Z-210412T0400Z/
Pinellas-Coastal Hillsborough-Coastal Manatee-Coastal Sarasota-
Coastal Charlotte-Coastal Lee-
914 AM EDT Sun Apr 11 2021

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

* WHAT...Dangerous rip currents.

* WHERE...Pinellas, Coastal Hillsborough, Coastal Manatee, 
  Coastal Sarasota, Coastal Charlotte and Coastal Lee Counties.

* 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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 11, 3:32 AM EDTSmall Craft AdvisoryTBW16 hr
Apr 11, 5:46 AM EDTSpecial Weather StatementTBWGilchrist44 min
Apr 11, 9:13 AM EDTSpecial Marine WarningTBW92 min
Apr 11, 9:28 AM EDTSpecial Weather StatementTBWHernando47 min
Apr 11, 10:44 AM EDTSpecial Marine WarningTBW61 min
Apr 11, 11:09 AM EDTSevere Thunderstorm WarningTBWHernando, Hillsborough, Pasco, Pinellas, Sumter32 min
Apr 11, 11:49 AM EDTSpecial Marine WarningTBW56 min
Apr 11, 11:56 AM EDTSpecial Weather StatementTBWHillsborough, Polk64 min
Apr 11, 12:23 PM EDTSpecial Weather StatementTBWHillsborough, Pinellas37 min
Apr 11, 1:01 PM EDTSevere Thunderstorm WarningTBWHardee, Hillsborough, Manatee, Polk29 min
Apr 11, 1:32 PM EDTSpecial Weather StatementTBWHardee, Highlands43 min
Apr 11, 1:47 PM EDTSevere Thunderstorm WarningTBWHighlands28 min
Apr 11, 3:13 PM EDTSpecial Marine WarningTBW62 min
Apr 11, 3:41 PM EDTSpecial Weather StatementTBWCharlotte, Lee49 min
Apr 11, 4:08 PM EDTSevere Thunderstorm WarningTBWLee17 min

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.