Alert archive / Florida / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 45, NWS Tampa Bay, FL

June 17, 2023Sumter County, Florida

NWS Tampa Bay, FL issued this severe thunderstorm warning at Jun 17, 2023, 10:46 AM EDT for Sumter County, Florida. It was in force for 14 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: Jun 17, 2023, 10:46 AM EDT (14:46 UTC)
Expired: Jun 17, 2023, 11:00 AM EDT
In force: 14 min
Issued by: NWS Tampa Bay, FL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Sumter County, FL

The radar

The Tampa radar (KTBW), 116 km from the middle of the area, began a volume at 14:48 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

Cape Canaveral, FL (KXMR), launched 12:00Z, 2.8 hours before the alert went out and 157 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: 2043 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 797 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 58 m²/s²
0-3 km storm-relative helicity: 38 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.3

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 Jun 17, 9:22 AM EDT, 1 hour 24 minutes earlier.

Area forecast discussion, Jun 17, 9:22 AM EDT, 1 hour 24 minutes before

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In the hours before

Special weather statement, Jun 17, 8:59 AM EDT, 1 hour 47 minutes before

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Special weather statement, Jun 17, 9:04 AM EDT, 1 hour 42 minutes before

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Local storm report, Jun 17, 9:22 AM EDT, 1 hour 24 minutes before

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Special weather statement, Jun 17, 9:52 AM EDT, 54 minutes before

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Local storm report, Jun 17, 10:33 AM EDT, 13 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
Jun 17, 8:59 AM EDT	Special Weather Statement	TBW	Levy	46 min
Jun 17, 9:04 AM EDT	Special Weather Statement	TBW	Charlotte	26 min
Jun 17, 9:17 AM EDT	Special Marine Warning	TBW		118 min
Jun 17, 9:52 AM EDT	Special Weather Statement	TBW	Polk	38 min
Jun 17, 10:30 AM EDT	Areal Flood Advisory	TBW	Sumter	2 hr
Jun 17, 10:59 AM EDT	Severe Thunderstorm Warning	TBW	Sumter	14 min
Jun 17, 11:05 AM EDT	Special Weather Statement	TBW	Highlands	25 min
Jun 17, 11:19 AM EDT	Severe Thunderstorm Warning	TBW	Highlands	26 min
Jun 17, 12:41 PM EDT	Special Weather Statement	TBW	Polk	34 min
Jun 17, 1:58 PM EDT	Rip Current Statement	TBW	Charlotte, Hillsborough, Lee, Manatee, Pinellas, Sarasota	49 hr
Jun 17, 2:03 PM EDT	Special Weather Statement	TBW	Highlands	42 min
Jun 17, 7:50 PM EDT	Special Weather Statement	TBW	Hernando	25 min

Nearby

Severe Thunderstorm Warnings in Florida, 2023 Every severe thunderstorm warning in 2023

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.