Alert archive / Florida / Rip Current Statements in 2017

Rip Current Statement 25, NWS Tampa Bay, FL

July 30, 20176 counties in Florida

NWS Tampa Bay, FL issued this rip current statement at Jul 30, 2017, 4:48 AM EDT for 6 counties in Florida. It took effect at Jul 30, 2017, 6:00 AM EDT. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued: Jul 30, 2017, 4:48 AM EDT (08:48 UTC)
In effect from: Jul 30, 2017, 6:00 AM EDT
Expired: Jul 30, 2017, 8:00 PM EDT
In force: 14 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 08:50 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 00:00Z, 8.8 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1248 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 1008 m above ground
0-6 km bulk shear: 3 kt
0-1 km storm-relative helicity: -17 m²/s²
0-3 km storm-relative helicity: -23 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

248 
WHUS42 KTBW 300848
CFWTBW

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
448 AM EDT SUN JUL 30 2017

FLZ050-151-155-160-162-165-310000-
/O.NEW.KTBW.RP.S.0025.170730T1000Z-170731T0000Z/
PINELLAS-COASTAL HILLSBOROUGH-COASTAL MANATEE-COASTAL SARASOTA-
COASTAL CHARLOTTE-COASTAL LEE-
448 AM EDT SUN JUL 30 2017

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

THE NATIONAL WEATHER SERVICE IN TAMPA BAY RUSKIN HAS ISSUED A
HIGH RIP CURRENT RISK, WHICH IS IN EFFECT THROUGH THIS EVENING. 

* RIP CURRENT TIMING...INCREASING WINDS AND WAVE ACTION WILL
  CREATE DANGEROUS RIP CURRENTS AT AREA BEACHES THROUGH THIS 
  EVENING.

* RIP CURRENT IMPACTS...STRONG AND DANGEROUS RIP CURRENTS WILL 
  BE HAZARDOUS FOR THOSE IN THE SURF ZONE AT AREA BEACHES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

RIP CURRENTS ARE POWERFUL CHANNELS OF WATER FLOWING QUICKLY AWAY
FROM SHORE...WHICH OCCUR MOST OFTEN AT LOW SPOTS OR BREAKS IN THE
SANDBAR AND IN THE VICINITY OF STRUCTURES SUCH AS GROINS...
JETTIES AND PIERS. FOR MAXIMUM SAFETY...SWIM NEAR A LIFEGUARD.
PAY ATTENTION TO FLAGS AND SIGNS.

IF YOU BECOME CAUGHT IN A RIP CURRENT...YELL FOR HELP. REMAIN
CALM...DO NOT EXHAUST YOURSELF AND STAY AFLOAT WHILE WAITING FOR
HELP. IF YOU HAVE TO SWIM OUT OF A RIP CURRENT...SWIM PARALLEL TO
SHORE AND BACK TOWARD THE BEACH WHEN POSSIBLE. DO NOT ATTEMPT TO
SWIM DIRECTLY AGAINST A RIP CURRENT AS YOU WILL TIRE QUICKLY. 

&&

$$

HTTP://WWW.WEATHER.GOV/TAMPABAY

Nearby

Rip Current Statements in Florida, 2017 Every rip current statement in 2017

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.