Alert archive / Florida / High Surf Advisories in 2018

High Surf Advisory 5, NWS Tampa Bay, FL

October 8, 20186 counties in Florida

NWS Tampa Bay, FL issued this high surf advisory at Oct 8, 2018, 5:35 AM EDT for 6 counties in Florida. It took effect at Oct 8, 2018, 2:00 PM EDT. It was in force for 3 days.

The area

The counties it named.

The facts

Issued
Oct 8, 2018, 5:35 AM EDT (09:35 UTC)
In effect from
Oct 8, 2018, 2:00 PM EDT
Expired
Oct 11, 2018, 4:00 PM EDT
In force
3 days
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 09:39 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

Miami, FL (KMFL), launched 00:00Z, 9.6 hours before the alert went out and 259 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, Miami, FL at 00:00Z on 2018-10-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 183 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, Miami, FL at 00:00Z on 2018-10-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -30 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
183 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
1166 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-30 m²/s²
0-3 km storm-relative helicity
14 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this high surf advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tampa Bay, FL wrote its last area forecast discussion before this high surf advisory went out at Oct 8, 5:33 AM EDT, 2 minutes earlier.

Area forecast discussion, Oct 8, 5:33 AM EDT, 2 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Oct 8, 5:33 AM EDTHurricane WatchTBW12 hr
Oct 8, 5:33 AM EDTTropical Storm WatchTBWCitrus, Hernando, Hillsborough, Levy, Manatee, Pasco and 1 more58 hr
Oct 8, 5:35 AM EDTRip Current StatementTBWCharlotte, Hillsborough, Lee, Manatee, Pinellas, Sarasota3 days
Oct 8, 5:38 AM EDTStorm Surge WatchTBWCitrus, Hernando, Hillsborough, Levy, Manatee, Pasco and 1 more60 hr
Oct 8, 11:59 AM EDTCoastal Flood AdvisoryTBWCharlotte, Lee, Sarasota54 hr
Oct 8, 12:56 PM EDTSpecial Weather StatementTBWDeSoto, Hardee34 min
Oct 8, 1:33 PM EDTSpecial Weather StatementTBWCharlotte42 min
Oct 8, 2:18 PM EDTSpecial Weather StatementTBWCharlotte, Sarasota42 min
Oct 8, 2:21 PM EDTSpecial Marine WarningTBW24 min
Oct 8, 5:06 PM EDTStorm Surge WarningTBWCitrus, Hernando, Levy, Pasco54 hr
Oct 8, 5:06 PM EDTTropical Storm WarningTBWCitrus, Levy51 hr
Oct 8, 6:00 PM EDTHurricane WarningTBW50 hr

Nearby

High Surf Advisories in Florida, 2018Every high surf advisory in 2018

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.