Alert archive / Florida / Special Weather Statements in 2021

Special Weather Statement, NWS Tampa Bay, FL

April 11, 2021Charlotte County, Lee County, Florida

NWS Tampa Bay, FL issued this special weather statement at Apr 11, 2021, 3:41 PM EDT for Charlotte County, Lee County, Florida. It was in force for 49 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 11, 2021, 3:41 PM EDT (19:41 UTC)
Expired: Apr 11, 2021, 4:30 PM EDT
In force: 49 min
Issued by: NWS Tampa Bay, FL

Counties Charlotte County, FL, Lee County, FL

The radar

The Tampa radar (KTBW), 147 km from the middle of the area, began a volume at 19:40 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, 7.7 hours before the alert went out and 147 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: 1004 J/kg
Mixed-layer CIN: -131 J/kg
Mixed-layer LCL: 1005 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 288 m²/s²
0-3 km storm-relative helicity: 296 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

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 11, 2:18 PM EDT, 1 hour 23 minutes earlier.

Area forecast discussion, Apr 11, 2:18 PM EDT, 1 hour 23 minutes before

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Hazardous weather outlook, Apr 11, 3:29 AM EDT, 12 hours 12 minutes before

Hazardous Weather Outlook
National Weather Service Tampa Bay Ruskin FL
329 AM EDT Sun Apr 11 2021

FLZ043-050-052-056-057-061-139-142-148-149-151-155-160-162-165-
239-242-248-249-251-255-260-262-265-111930-
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-
329 AM EDT Sun Apr 11 2021

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

.DAY ONE...Today and Tonight.

...THUNDERSTORM IMPACT...
Widespread thunderstorms will move southeast through west central
and southwest Florida today. Thunderstorms that develop will be
capable of producing strong gusty winds, locally heavy rains and
flooding, large hail, and isolated tornadoes or waterspouts.

...FLOOD IMPACT...
Locally heavy rainfall is expected. The heavy rain will produce
flooding of low lying and poor drainage areas as well as the
ponding of water on roadways. Motorists should exercise caution.

...MARINE IMPACTS...
Wind speeds of 20 to 25 knots will create hazardous boating
conditions for small craft operators today.

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

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today.

Fleming

In the hours before

Local storm report, Apr 11, 2:36 PM EDT, 1 hour 5 minutes before

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Local storm report, Apr 11, 2:51 PM EDT, 50 minutes before

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Local storm report, Apr 11, 2:53 PM EDT, 48 minutes before

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Local storm report, Apr 11, 2:55 PM EDT, 46 minutes before

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Local storm report, Apr 11, 3:21 PM EDT, 20 minutes before

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Special weather statement, Apr 11, 3:41 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.

Issued	Product	Office	Counties	Lasted
Apr 11, 3:32 AM EDT	Small Craft Advisory	TBW		16 hr
Apr 11, 5:46 AM EDT	Special Weather Statement	TBW	Gilchrist	44 min
Apr 11, 9:13 AM EDT	Special Marine Warning	TBW		92 min
Apr 11, 9:14 AM EDT	Rip Current Statement	TBW	Charlotte, Hillsborough, Lee, Manatee, Pinellas, Sarasota	15 hr
Apr 11, 9:28 AM EDT	Special Weather Statement	TBW	Hernando	47 min
Apr 11, 10:44 AM EDT	Special Marine Warning	TBW		61 min
Apr 11, 11:09 AM EDT	Severe Thunderstorm Warning	TBW	Hernando, Hillsborough, Pasco, Pinellas, Sumter	32 min
Apr 11, 11:49 AM EDT	Special Marine Warning	TBW		56 min
Apr 11, 11:56 AM EDT	Special Weather Statement	TBW	Hillsborough, Polk	64 min
Apr 11, 12:23 PM EDT	Special Weather Statement	TBW	Hillsborough, Pinellas	37 min
Apr 11, 1:01 PM EDT	Severe Thunderstorm Warning	TBW	Hardee, Hillsborough, Manatee, Polk	29 min
Apr 11, 1:32 PM EDT	Special Weather Statement	TBW	Hardee, Highlands	43 min
Apr 11, 1:47 PM EDT	Severe Thunderstorm Warning	TBW	Highlands	28 min
Apr 11, 3:13 PM EDT	Special Marine Warning	TBW		62 min
Apr 11, 4:08 PM EDT	Severe Thunderstorm Warning	TBW	Lee	17 min

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; radar from the NEXRAD Level II archive.