Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Tampa Bay, FL

April 19, 2021Highlands County, Florida

NWS Tampa Bay, FL issued this special weather statement at Apr 19, 2021, 3:00 PM EDT for Highlands County, Florida. It was in force for 30 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
Apr 19, 2021, 3:00 PM EDT (19:00 UTC)
Expired
Apr 19, 2021, 3:30 PM EDT
In force
30 min
Issued by
NWS Tampa Bay, FL

County Highlands County, FL

The radar

The Tampa radar (KTBW), 117 km from the middle of the area, began a volume at 19:02 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, 7.0 hours before the alert went out and 117 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 2021-04-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 542 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 2021-04-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 square meters per square second.19395878Sfc1 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
542 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
562 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
-20 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.8

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 Apr 19, 2:23 PM EDT, 37 minutes earlier.

Area forecast discussion, Apr 19, 2:23 PM EDT, 37 minutes before
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Hazardous weather outlook, Apr 19, 6:09 AM EDT, 8 hours 51 minutes before
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In the hours before

Special weather statement, Apr 19, 10:36 AM EDT, 4 hours 24 minutes before
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Special weather statement, Apr 19, 3:00 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 18, 9:23 PM EDTSpecial Marine WarningTBW37 min
Apr 18, 9:26 PM EDTTornado WarningTBWHillsborough, Pasco, Pinellas34 min
Apr 18, 9:55 PM EDTSpecial Weather StatementTBWPinellas35 min
Apr 18, 10:53 PM EDTSpecial Weather StatementTBWPolk22 min
Apr 18, 11:16 PM EDTSpecial Weather StatementTBWPolk44 min
Apr 19, 3:33 AM EDTSpecial Marine WarningTBW57 min
Apr 19, 4:14 AM EDTSpecial Weather StatementTBWPolk46 min
Apr 19, 4:18 AM EDTSpecial Weather StatementTBWManatee27 min
Apr 19, 4:26 AM EDTSevere Thunderstorm WarningTBWPolk34 min
Apr 19, 4:57 AM EDTSpecial Marine WarningTBW63 min
Apr 19, 5:01 AM EDTSpecial Weather StatementTBWPolk44 min
Apr 19, 5:42 AM EDTSpecial Weather StatementTBWHardee48 min
Apr 19, 5:48 AM EDTSevere Thunderstorm WarningTBWPolk42 min
Apr 19, 5:58 AM EDTAreal Flood AdvisoryTBWPolk2 hr
Apr 19, 6:06 AM EDTSpecial Marine WarningTBW39 min
Apr 19, 6:36 AM EDTSpecial Weather StatementTBWHardee39 min
Apr 19, 6:44 AM EDTTornado WarningTBWHardee36 min
Apr 19, 7:19 AM EDTSpecial Weather StatementTBWHighlands41 min
Apr 19, 7:57 AM EDTAreal Flood AdvisoryTBWHardee, Highlands2 hr
Apr 19, 8:00 AM EDTSpecial Weather StatementTBWHighlands60 min
Apr 19, 10:36 AM EDTSpecial Weather StatementTBWCharlotte39 min
Apr 19, 2:22 PM EDTRip Current StatementTBWCharlotte, Hillsborough, Lee, Manatee, Pinellas, Sarasota30 hr
Apr 19, 3:33 PM EDTSevere Thunderstorm WarningTBWHighlands27 min

Nearby

Special Weather Statements in Florida, 2021Every 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; radar from the NEXRAD Level II archive.