Alert archive / Florida / High Surf Advisories in 2017

High Surf Advisory 5, NWS Tampa Bay, FL

September 11, 20176 counties in Florida

NWS Tampa Bay, FL issued this high surf advisory at Sep 11, 2017, 3:19 PM EDT for 6 counties in Florida. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Sep 11, 2017, 3:19 PM EDT (19:19 UTC)
Expired: Sep 11, 2017, 8:57 PM EDT
In force: 6 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 19:22 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, 7.3 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3742 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: -17 m²/s²
0-3 km storm-relative helicity: 24 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 Sep 11, 1:47 PM EDT, 1 hour 32 minutes earlier.

Area forecast discussion, Sep 11, 1:47 PM EDT, 1 hour 32 minutes before

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Hazardous weather outlook, Sep 11, 4:17 AM EDT, 11 hours 2 minutes before

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In the hours before

Local storm report, Sep 11, 11:31 AM EDT, 3 hours 48 minutes before

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Local storm report, Sep 11, 2:11 PM EDT, 1 hour 8 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 10, 11:14 PM EDT	Extreme Wind Warning	TBW	Polk	91 min
Sep 11, 1:00 AM EDT	Special Weather Statement	TBW	Polk	60 min
Sep 11, 2:03 AM EDT	Special Weather Statement	TBW	Sumter	57 min
Sep 11, 3:13 AM EDT	Areal Flood Warning	TBW	Citrus, DeSoto, Hardee, Hernando, Highlands, Hillsborough and 3 more	3 hr
Sep 11, 3:17 AM EDT	Special Weather Statement	TBW	Sumter	58 min
Sep 11, 5:29 AM EDT	Tropical Storm Warning	TBW	Charlotte, Citrus, DeSoto, Hardee, Hernando, Highlands and 9 more	10 hr
Sep 11, 12:04 PM EDT	Small Craft Advisory	TBW		20 hr
Sep 11, 3:08 PM EDT	Wind Advisory	TBW	Charlotte, Citrus, DeSoto, Hardee, Hernando, Highlands and 9 more	3 hr
Sep 11, 3:19 PM EDT	Rip Current Statement	TBW	Charlotte, Hillsborough, Lee, Manatee, Pinellas, Sarasota	6 hr

Nearby

High Surf Advisories in Florida, 2017 Every high surf advisory 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.