Alert archive / Florida / Beach Hazards Statements in 2012

Beach Hazards Statement 13, NWS Tampa Bay, FL

September 18, 2012Pinellas County, Florida

NWS Tampa Bay, FL issued this beach hazards statement at Sep 18, 2012, 3:37 AM EDT for Pinellas County, Florida. It took effect at Sep 18, 2012, 10:00 AM EDT. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Sep 18, 2012, 3:37 AM EDT (07:37 UTC)
In effect from
Sep 18, 2012, 10:00 AM EDT
Expired
Sep 18, 2012, 10:00 PM EDT
In force
12 hr
Issued by
NWS Tampa Bay, FL

County Pinellas County, FL

The radar

The Tampa radar (KTBW), 40 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

Tampa Bay, FL (KTBW), launched 00:00Z, 7.6 hours before the alert went out and 40 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 00:00Z on 2012-09-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1217 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2012-09-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 square meters per square second.1939Sfc1 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
1217 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
887 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

213 
WHUS42 KTBW 180737
CFWTBW

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
337 AM EDT TUE SEP 18 2012

...MODERATE RISK OF RIP CURRENTS AT AREA BEACHES THROUGH
TONIGHT...

.MODERATE AND GUSTY SOUTHWEST WINDS WILL ALLOW FOR A MODERATE
RISK OF RIP CURRENTS AT AREA BEACHES THROUGH THIS EVENING.

FLZ050-051-055-060-062-065-190200-
/O.NEW.KTBW.BH.S.0013.120918T1400Z-120919T0200Z/
PINELLAS-HILLSBOROUGH-MANATEE-SARASOTA-CHARLOTTE-LEE-
337 AM EDT TUE SEP 18 2012

...BEACH HAZARDS STATEMENT IN EFFECT FROM 10 AM EDT THIS MORNING
THROUGH THIS EVENING...

THE NATIONAL WEATHER SERVICE IN TAMPA BAY RUSKIN HAS ISSUED A
BEACH HAZARDS STATEMENT FOR RIP CURRENT WHICH IS IN EFFECT FROM
10 AM EDT THIS MORNING THROUGH THIS EVENING.

* HAZARDS...LIFE THREATENING RIP CURRENTS.

* TIMING...SOUTHWEST WINDS 15 TO 20 MPH AND GUSTY WILL CREATE
  DANGEROUS RIP CURRENT FROM THIS MORNING THROUGH THIS EVENING.

* LOCATION...THE ENTIRE COASTLINE FROM TARPON SPRINGS TO BONITA
  BEACH INCLUDING THE BARRIER ISLANDS AND ASSOCIATED SURF ZONE.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BEACH HAZARDS STATEMENT IS ISSUED WHEN THREATS SUCH AS RIP
CURRENTS...LONG SHORE CURRENTS...SNEAKER WAVES AND OTHER HAZARDS
ARE POSSIBLE. CAUTION SHOULD BE USED WHEN IN OR NEAR THE WATER.

PLEASE VISIT THE FOLLOWING WEBSITE TO SHARE YOUR THOUGHTS ON THE
NEW BEACH HAZARDS STATEMENT...

HTTP://WWW.WEATHER.GOV/SURVEY/NWS-SURVEY.PHP?CODE=CHMBHS

&&

$$


HTTP://WWW.WEATHER.GOV/TAMPA

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 18, 4:13 AM EDTSmall Craft AdvisoryTBW18 hr
Sep 18, 7:45 AM EDTSpecial Weather StatementTBWLevy30 min
Sep 18, 9:17 AM EDTSpecial Marine WarningTBW43 min
Sep 18, 10:14 AM EDTSpecial Weather StatementTBWLevy46 min
Sep 18, 10:41 AM EDTSpecial Marine WarningTBW34 min
Sep 18, 10:43 AM EDTSpecial Weather StatementTBWHillsborough32 min
Sep 18, 11:27 AM EDTSpecial Weather StatementTBWHillsborough48 min
Sep 18, 11:30 AM EDTSpecial Marine WarningTBW60 min
Sep 18, 11:56 AM EDTSpecial Marine WarningTBW34 min
Sep 18, 12:36 PM EDTSpecial Marine WarningTBW39 min
Sep 18, 12:51 PM EDTSpecial Marine WarningTBW54 min
Sep 18, 1:18 PM EDTSpecial Weather StatementTBWPolk27 min
Sep 18, 1:31 PM EDTSpecial Weather StatementTBWPasco44 min
Sep 18, 1:43 PM EDTSevere Thunderstorm WarningTBWHillsborough, Pinellas28 min
Sep 18, 1:46 PM EDTSpecial Marine WarningTBW59 min
Sep 18, 2:28 PM EDTSpecial Weather StatementTBWHillsborough47 min
Sep 18, 2:56 PM EDTSpecial Marine WarningTBW2 hr

Nearby

Beach Hazards Statements in Florida, 2012Every beach hazards statement in 2012

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.