Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Tampa Bay, FL

August 15, 2021Manatee County, Florida

NWS Tampa Bay, FL issued this special weather statement at Aug 15, 2021, 2:48 PM EDT for Manatee County, Florida. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 15, 2021, 2:48 PM EDT (18:48 UTC)
Expired: Aug 15, 2021, 3:15 PM EDT
In force: 27 min
Issued by: NWS Tampa Bay, FL
Hail: 0.00 in
Wind: 50

County Manatee County, FL

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 6.8 hours before the alert went out and 5 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: 816 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 733 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 130 m²/s²
0-3 km storm-relative helicity: 117 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 15, 7:36 AM EDT, 7 hours 12 minutes earlier.

Area forecast discussion, Aug 15, 7:36 AM EDT, 7 hours 12 minutes before

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  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
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  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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Hazardous weather outlook, Aug 15, 5:56 AM EDT, 8 hours 52 minutes before

Hazardous Weather Outlook
National Weather Service Tampa Bay Ruskin FL
556 AM EDT Sun Aug 15 2021

FLZ043-050-052-056-057-061-139-142-148-149-151-155-160-162-165-
239-242-248-249-251-255-260-262-265-152200-
Sumter-Pinellas-Polk-Hardee-Highlands-DeSoto-Coastal Levy-
Coastal Citrus-Coastal Hernando-Coastal Pasco-
Coastal Hillsborough-Coastal Manatee-Coastal Sarasota-
Coastal Charlotte-Coastal Lee-Inland Levy-Inland Citrus-
Inland Hernando-Inland Pasco-Inland Hillsborough-Inland Manatee-
Inland Sarasota-Inland Charlotte-Inland Lee-
556 AM EDT Sun Aug 15 2021

This Hazardous Weather Outlook is for West Central And Southwest
Florida.

.DAY ONE...Today and Tonight.

...THUNDERSTORM IMPACT...
Scattered thunderstorms are expected, mainly along the coast today.
Thunderstorms that develop will be capable of producing strong
gusty winds and isolated tornados.

...RIP CURRENT IMPACT...
High surf and swells from Fred will produce rip currents along
area beaches.

...MARINE IMPACTS...
Wind speeds of 20 to 25 knots will create hazardous boating
conditions for small craft operators over the offshore waters.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

...THUNDERSTORM IMPACT...
Scattered to widespread thunderstorms are expected each day this
week. Thunderstorms will be capable of producing strong gusty
winds, locally heavy rains, and frequent deadly lightning
strikes.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

Fleming

In the hours before

Special weather statement, Aug 15, 2:48 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Tampa Bay Area Ruskin FL
248 PM EDT Sun Aug 15 2021

FLZ151-155-251-255-151915-
Inland Manatee FL-Coastal Hillsborough FL-Coastal Manatee FL-
Inland Hillsborough FL-
248 PM EDT Sun Aug 15 2021

...A strong thunderstorm will impact portions of northeastern Manatee
and south central Hillsborough Counties through 315 PM EDT...

At 247 PM EDT, Doppler radar was tracking a strong thunderstorm near
Parrish, or 14 miles east of Palmetto, moving northwest at 35 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Tampa, Ruskin, Parrish, Greater Sun Center, Little Manatee River
State Park, Lake Manatee State Park, Sun City Center, Wimauma and
Gibsonton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 2779 8251 2781 8253 2787 8244 2752 8219
      2741 8235 2768 8265
TIME...MOT...LOC 1847Z 142DEG 29KT 2753 8233

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

TBW

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 14, 9:33 PM EDT	Special Marine Warning	TBW		57 min
Aug 15, 9:06 AM EDT	River Flood Warning	TBW	Citrus	5 days
Aug 15, 1:15 PM EDT	Coastal Flood Advisory	TBW	Citrus, Hernando, Levy	44 hr
Aug 15, 2:47 PM EDT	Special Marine Warning	TBW		58 min
Aug 15, 3:33 PM EDT	Special Marine Warning	TBW		57 min
Aug 15, 3:34 PM EDT	Special Weather Statement	TBW	Pinellas	41 min
Aug 15, 3:42 PM EDT	Severe Thunderstorm Warning	TBW	Pinellas	33 min
Aug 15, 4:12 PM EDT	Special Weather Statement	TBW	Pinellas	33 min
Aug 15, 4:28 PM EDT	Special Marine Warning	TBW		62 min
Aug 15, 5:44 PM EDT	Storm Surge Warning	TBW	Levy	29 hr
Aug 15, 5:47 PM EDT	Special Marine Warning	TBW		118 min
Aug 15, 7:41 PM EDT	Special Marine Warning	TBW		2 hr

Nearby

Special Weather Statements in Florida, 2021 Every special weather 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.