Alert archive / Florida / Special Marine Warnings in 2020

Special Marine Warning 252, NWS Key West, FL

July 21, 2020

NWS Key West, FL issued this special marine warning at Jul 21, 2020, 9:59 AM EDT. It was in force for 35 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 21, 2020, 9:59 AM EDT (13:59 UTC)
Expired
Jul 21, 2020, 10:34 AM EDT
In force
35 min
Issued by
NWS Key West, FL
Area
Storm-based polygon
Hail
0.0 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 Key West, FL wrote its last area forecast discussion before this special marine warning went out at Jul 21, 4:22 AM EDT, 5 hours 37 minutes earlier.

Area forecast discussion, Jul 21, 4:22 AM EDT, 5 hours 37 minutes before
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Hazardous weather outlook, Jul 21, 4:48 AM EDT, 5 hours 11 minutes before
Hazardous Weather Outlook
National Weather Service Key West FL
448 AM EDT Tue Jul 21 2020

FLZ076>078-GMZ031>035-042>044-052>055-072>075-220900-
Monroe Upper Keys-Monroe Middle Keys-Monroe Lower Keys-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
Bayside and Gulf side from Craig Key to west end of Seven Mile
Bridge-
Gulf waters from East Cape Sable to Chokoloskee 20 to 60 NM out
and beyond 5 fathoms-
Gulf of Mexico including Dry Tortugas and Rebecca Shoal Channel-
Gulf of Mexico from west end of Seven Mile Bridge to Halfmoon
Shoal out to 5 Fathoms-
Hawk Channel from Ocean Reef to Craig Key out to the reef-
Hawk Channel from Craig Key to west end of Seven Mile Bridge out
to the reef-
Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal
out to the reef-
Straits of Florida from Ocean Reef to Craig Key out 20 NM-
Straits of Florida from Craig Key to west end of Seven Mile
Bridge out 20 NM-
Straits of Florida from west end of Seven Mile Bridge to south of
Halfmoon Shoal out 20 NM-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas out 20 NM-
Straits of Florida from Ocean Reef to Craig Key 20 to 60 NM out-
Straits of Florida from Craig Key to west end of Seven Mile
Bridge 20 to 60 NM out-
Straits of Florida from west end of Seven Mile Bridge to south of
Halfmoon Shoal 20 to 60 NM out-
Straits of Florida from Halfmoon Shoal to 20 NM west of Dry
Tortugas 20 to 60 NM out-
448 AM EDT Tue Jul 21 2020

This Hazardous Weather Outlook is for the Florida Keys and
adjacent coastal waters.

.DAY ONE...TODAY AND TONIGHT

Isolated to scattered thunderstorms are possible along the island
chain and the adjacent coastal waters.

The primary thunderstorm hazards will be cloud to surface lightning
strikes and strong gusty winds in excess of 40 mph in heavier
cells.

Stay tuned to NOAA Weather radio for the latest short term forecasts,
statements or warnings issued by your National Weather Service radio
right here in Key West.

In addition, East to southeast winds near 20 knots early this morning,
are expected to increase to near 25 knots on portions of our marine
district. Subsequently, a Small Craft Advisory will remain in effect.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

Isolated thunderstorms are possible along the island chain and
the adjacent coastal waters.

The primary thunderstorm hazards will be cloud to surface lightning
strikes and gusty winds.

In addition, a Small Craft Advisory may be required for portions of
our marine district for Wednesday through Thursday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

APA

In the hours before

Local storm report, Jul 21, 9:08 AM EDT, 51 minutes before
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Local storm report, Jul 21, 9:21 AM EDT, 38 minutes before
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Local storm report, Jul 21, 9:28 AM EDT, 31 minutes before
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Local storm report, Jul 21, 9:42 AM EDT, 17 minutes before
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Local storm report, Jul 21, 9:45 AM EDT, 14 minutes before
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Local storm report, Jul 21, 9:54 AM EDT, 5 minutes before
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The office that day

Everything else NWS Key West, FL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 20, 9:40 PM EDTSpecial Marine WarningKEY53 min
Jul 21, 12:02 AM EDTSpecial Marine WarningKEY58 min
Jul 21, 12:10 AM EDTSpecial Marine WarningKEY65 min
Jul 21, 12:57 AM EDTSpecial Marine WarningKEY63 min
Jul 21, 1:16 AM EDTSpecial Marine WarningKEY39 min
Jul 21, 3:05 AM EDTSpecial Marine WarningKEY55 min
Jul 21, 3:24 AM EDTSpecial Marine WarningKEY66 min
Jul 21, 3:58 AM EDTSpecial Marine WarningKEY32 min
Jul 21, 4:15 AM EDTSpecial Marine WarningKEY60 min
Jul 21, 6:19 AM EDTSpecial Marine WarningKEY56 min
Jul 21, 7:55 AM EDTSpecial Marine WarningKEY65 min
Jul 21, 8:29 AM EDTSpecial Marine WarningKEY61 min
Jul 21, 8:51 AM EDTSpecial Marine WarningKEY54 min
Jul 21, 9:45 AM EDTSpecial Marine WarningKEY32 min
Jul 21, 10:15 AM EDTSpecial Marine WarningKEY60 min
Jul 21, 10:30 AM EDTSpecial Weather StatementKEYMiami-Dade30 min
Jul 21, 10:32 AM EDTSpecial Marine WarningKEY43 min
Jul 21, 11:44 AM EDTSpecial Weather StatementKEY46 min
Jul 21, 11:46 AM EDTSpecial Marine WarningKEY59 min
Jul 21, 2:24 PM EDTSpecial Marine WarningKEY66 min
Jul 21, 3:22 PM EDTSpecial Marine WarningKEY53 min
Jul 21, 4:00 PM EDTSpecial Marine WarningKEY90 min
Jul 21, 4:10 PM EDTSpecial Marine WarningKEY65 min
Jul 21, 5:22 PM EDTSpecial Marine WarningKEY53 min
Jul 21, 6:04 PM EDTSpecial Marine WarningKEY41 min
Jul 21, 6:07 PM EDTSpecial Weather StatementKEY53 min
Jul 21, 6:09 PM EDTSpecial Marine WarningKEY51 min
Jul 21, 6:45 PM EDTSpecial Marine WarningKEY60 min
Jul 21, 7:45 PM EDTSpecial Marine WarningKEY60 min

Nearby

Special Marine Warnings in Florida, 2020Every special marine warning in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.