Alert archive / Florida / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 58, NWS Tampa Bay, FL

July 24, 2016Hillsborough County, Pasco County, Polk County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Jul 24, 2016, 5:09 PM EDT for Hillsborough County, Pasco County, Polk County, Florida. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 24, 2016, 5:09 PM EDT (21:09 UTC)
Expired
Jul 24, 2016, 5:37 PM EDT
In force
28 min
Issued by
NWS Tampa Bay, FL
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Hillsborough County, FL, Pasco County, FL, Polk County, FL

The radar

The Tampa radar (KTBW), 45 km from the middle of the area, began a volume at 21:09 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, 9.2 hours before the alert went out and 45 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 12:00Z on 2016-07-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 817 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, Tampa Bay, FL at 12:00Z on 2016-07-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 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
817 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
884 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
-19 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 severe thunderstorm warning 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 severe thunderstorm warning went out at Jul 24, 1:55 PM EDT, 3 hours 14 minutes earlier.

Area forecast discussion, Jul 24, 1:55 PM EDT, 3 hours 14 minutes before
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Hazardous weather outlook, Jul 24, 3:29 AM EDT, 13 hours 40 minutes before
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In the hours before

Special weather statement, Jul 24, 1:43 PM EDT, 3 hours 26 minutes before
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Special weather statement, Jul 24, 3:30 PM EDT, 1 hour 39 minutes before
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      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
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Special weather statement, Jul 24, 3:43 PM EDT, 1 hour 26 minutes before
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      <h1 id="headline">This service is currently unavailable.</h1>
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Special weather statement, Jul 24, 4:23 PM EDT, 46 minutes before
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        Please try again in a few minutes.
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Special weather statement, Jul 24, 4:30 PM EDT, 39 minutes before
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<body>
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      <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.
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      <p id="message2">
        Please try again in a few minutes.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Local storm report, Jul 24, 5:01 PM EDT, 8 minutes before
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 23, 8:06 PM EDTSpecial Weather StatementTBWSumter24 min
Jul 23, 8:55 PM EDTSpecial Weather StatementTBWPolk35 min
Jul 24, 12:00 AM EDTSpecial Weather StatementTBWLee45 min
Jul 24, 1:43 PM EDTSpecial Weather StatementTBWHernando47 min
Jul 24, 3:30 PM EDTSpecial Weather StatementTBWHernando, Pasco45 min
Jul 24, 3:43 PM EDTSpecial Weather StatementTBWHillsborough47 min
Jul 24, 4:23 PM EDTSpecial Weather StatementTBWHighlands52 min
Jul 24, 4:30 PM EDTSpecial Weather StatementTBWHillsborough, Pasco45 min
Jul 24, 4:35 PM EDTSpecial Marine WarningTBW40 min
Jul 24, 5:17 PM EDTSpecial Weather StatementTBWDeSoto43 min
Jul 24, 5:46 PM EDTSpecial Weather StatementTBWSumter44 min
Jul 24, 6:00 PM EDTSpecial Weather StatementTBWHardee30 min
Jul 24, 7:08 PM EDTSpecial Weather StatementTBWLevy67 min

Nearby

Severe Thunderstorm Warnings in Florida, 2016Every severe thunderstorm warning in 2016

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.