Alert archive / Florida / Special Marine Warnings in 2021

Special Marine Warning 4, NWS Tampa Bay, FL

February 6, 2021

NWS Tampa Bay, FL issued this special marine warning at Feb 6, 2021, 10:44 PM EST. It was in force for 46 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
Feb 6, 2021, 10:44 PM EST (03:44 UTC)
Expired
Feb 6, 2021, 11:30 PM EST
In force
46 min
Issued by
NWS Tampa Bay, FL
Area
Storm-based polygon
Hail
0.75 in
Wind
34.0 mph

What forecasters said that day

The local office's own words before this special marine 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 special marine warning went out at Feb 6, 10:04 PM EST, 40 minutes earlier.

Area forecast discussion, Feb 6, 10:04 PM EST, 40 minutes before
Area Forecast Discussion
National Weather Service Tampa Bay Ruskin FL
1004 PM EST Sat Feb 6 2021

.UPDATE...
Tornado Watch 5 has been cancelled for the counties of
Levy...Sumter...Citrus...and Hernando counties.

&&

.Prev Discussion... /issued 719 PM EST Sat Feb 6 2021/

AVIATION...
VFR CIGS expected to drop to MVFR to IFR from north to south
throughout the overnight hours. MVFR and brief IFR visibility will
also be possible overnight. Winds will be southerly but will
shift to the west then northwest through the period. SHRA and VCTS
will be possible mainly in the overnight and morning hours at all
terminals.

Prev Discussion... /issued 309 PM EST Sat Feb 6 2021/

DISCUSSION...
A boundary is in place across the Nature Coast this afternoon.
Warm and moist air will continue to lift north across the area
as the boundary lifts through the afternoon, with scattered to
numerous showers and thunderstorms, some becoming severe with
damaging winds and a tornado possible this afternoon. The chance
for severe weather will continue into the evening and overnight
hours, as the boundary then pushes back to the south and through
the area Sunday morning through the afternoon, with showers and
storms gradually ending across the area from north to south on
Sunday. Sea fog and land fog are also possible this
evening/overnight with sea fog already in place just offshore of
the Tampa Bay area. The fog will also clear out as the front
pushes south.

Once the front pushes south of the area, some drier and slightly
cooler air will move into the area behind it as high pressure
builds with the front stalling across south FL. The boundary lifts
back to the north mid-week allowing for a few showers in the
afternoons, with ridging then building in from the SE across the
area. The next stronger frontal system moves in Friday with a
secondary push Saturday, allowing for scattered showers and storms
across the area.

Temperatures will be in the mid 70s to lower 80s through much of
the period, with lows generally in the 50s and 60s through the
period.

MARINE...
Sea fog is in place across at least the central near-shore waters
this afternoon and is expected to spread across the waters with
the warm and moist air lifting over the area through the evening.
It will then eventually clear from north to south as the front
moves through the area Sunday. Scattered to numerous showers and
thunderstorms will also be in place across the area through
Sunday, also clearing from north to south with the front. Winds
and seas are expected to remain AOB 15 knots through the period
with no headlines. High pressure will briefly build in for Monday,
with the frontal boundary across south FL then lifting back to
the north Tuesday through the end of the period. A few mainly
afternoon showers will be possible each day from Tuesday on.

FIRE WEATHER...
No concerns as afternoon humidities are expected to remain above
critical levels through the period.

&&

.Preliminary Point Temps/PoPs...
TPA  75  67  73  59 /  70  80  50   0
FMY  84  69  78  65 /  60  50  70  10
GIF  75  68  79  60 /  70  70  60   0
SRQ  81  68  75  59 /  70  80  60   0
BKV  75  62  74  52 /  70  80  40   0
SPG  75  66  71  60 /  70  80  50   0

&&

.TBW WATCHES/WARNINGS/ADVISORIES...
FL...None.
Gulf waters...None.
&&

UPDATE...09/Rude

In the hours before

Special weather statement, Feb 6, 6:04 PM EST, 4 hours 40 minutes before
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Local storm report, Feb 6, 6:43 PM EST, 4 hours 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
643 PM EST SAT FEB 6 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0420 PM     TSTM WND DMG     4 N CHIEFLAND           29.54N 82.86W
02/06/2021                   LEVY               FL   LAW ENFORCEMENT

            TWO HOMES RECEIVED MINOR TO MODERATE ROOF DAMAGE.
            MULTIPLE TREES AND POWERLINES DOWN BETWEEN CHIEFLAND AND
            FANNING SPRINGS.

&&

OGLESBY

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 6, 10:10 PM ESTMarine Dense Fog AdvisoryTBW12 hr
Feb 6, 11:34 PM ESTSpecial Weather StatementTBWHardee41 min
Feb 6, 11:47 PM ESTSpecial Marine WarningTBW43 min
Feb 6, 11:53 PM ESTSpecial Weather StatementTBWLevy22 min
Feb 7, 12:25 AM ESTSpecial Weather StatementTBWCitrus35 min
Feb 7, 1:43 AM ESTSpecial Weather StatementTBWCitrus32 min
Feb 7, 1:56 AM ESTSpecial Weather StatementTBWManatee, Sarasota34 min
Feb 7, 4:07 AM ESTSpecial Marine WarningTBW23 min
Feb 7, 4:24 AM ESTSpecial Marine WarningTBW36 min
Feb 7, 4:31 AM ESTSpecial Weather StatementTBWHernando, Sumter44 min
Feb 7, 4:41 AM ESTSpecial Weather StatementTBWPinellas34 min
Feb 7, 4:58 AM ESTSpecial Marine WarningTBW47 min
Feb 7, 5:34 AM ESTAreal Flood AdvisoryTBWHillsborough, Pinellas116 min
Feb 7, 6:07 AM ESTSpecial Marine WarningTBW38 min
Feb 7, 6:16 AM ESTSpecial Weather StatementTBWPolk44 min
Feb 7, 6:39 AM ESTSpecial Weather StatementTBWManatee51 min
Feb 7, 6:51 AM ESTSpecial Marine WarningTBW39 min
Feb 7, 7:14 AM ESTSpecial Weather StatementTBWHardee, Manatee, Polk46 min
Feb 7, 9:30 AM ESTSpecial Weather StatementTBWHighlands45 min

Nearby

Special Marine Warnings in Florida, 2021Every special marine warning 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.