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Alabama, Blount

Public Information Statement

Statement as of 2:02 PM CST on January 20, 2017

Expires 3:15 AM EST on January 21, 2017


... NWS damage survey for 01/19/17 tornado event...
... Brief spin-up tornado on the shores of Logan Martin Lake...

.Treasure Island tornado...

Rating: EF-1
estimated peak wind: 90 mph
path length (statute): 0.7 miles
path width (maximum): 175 yards
fatalities: 0
injuries: 0

Start date: Jan 19 2017
start time: 558 PM CST
start location: 2 ENE Coosa island
start lat/lon: 33.4785 / -86.3045

End date: Jan 19 2017
end time: 600 PM CST
end location: 5 SSW Pell City
end lat/lon: 33.4877 / -86.3025

Survey summary:

A persistent mesocyclone spun up a brief weak tornado within a
line of thunderstorms as it passed through St Clair County. The
tornado touched down on Logan Martin Lake just south of the
Eastern Shore of Treasure Island. The tornado tracked northward
parallel to and just off the shores of the island, with the initial
damage pointing largely offshore. Four boathouses were destroyed
and a few trees were snapped or uprooted here, but the path of the
tornado was far enough offshore so as not to cause any structural
damage to the homes another 50 to 100 feet further inland. As the
tornado continued northward across a large Cove, it remained
completely over water. As it approached the northeastern tip of
the island, which jutted out into the lake, the tornado came ashore
again and peeled metal roofing off a well-built boathouse. The
tornado reached maximum strength here, with 10 large Hardwood trees
uprooted in a concentrated area in a convergent pattern. The
tornado passed offshore again and dissipated before reaching the
opposite point on the lake.

Ef scale: the Enhanced Fujita scale classifies
tornadoes into the following categories.

EF0... weak... ... 65 to 85 mph
EF1... weak... ... 86 to 110 mph
EF2... strong... .111 to 135 mph
EF3... strong... .136 to 165 mph
EF4... violent... 166 to 200 mph
EF5... violent... >200 mph

Note:
the information in this statement is preliminary and subject to
change pending final review of the event and publication in NWS
storm data.


Jd/02

202 PM CST Fri Jan 20 2017

... NWS damage survey for 01/19/17 tornado event...
... Brief spin-up tornado on the shores of Logan Martin Lake...

.Treasure Island tornado...

Rating: EF-1
estimated peak wind: 90 mph
path length (statute): 0.7 miles
path width (maximum): 175 yards
fatalities: 0
injuries: 0

Start date: Jan 19 2017
start time: 558 PM CST
start location: 2 ENE Coosa island
start lat/lon: 33.4785 / -86.3045

End date: Jan 19 2017
end time: 600 PM CST
end location: 5 SSW Pell City
end lat/lon: 33.4877 / -86.3025

Survey summary:

A persistent mesocyclone spun up a brief weak tornado within a
line of thunderstorms as it passed through St Clair County. The
tornado touched down on Logan Martin Lake just south of the
Eastern Shore of Treasure Island. The tornado tracked northward
parallel to and just off the shores of the island, with the initial
damage pointing largely offshore. Four boathouses were destroyed
and a few trees were snapped or uprooted here, but the path of the
tornado was far enough offshore so as not to cause any structural
damage to the homes another 50 to 100 feet further inland. As the
tornado continued northward across a large Cove, it remained
completely over water. As it approached the northeastern tip of
the island, which jutted out into the lake, the tornado came ashore
again and peeled metal roofing off a well-built boathouse. The
tornado reached maximum strength here, with 10 large Hardwood trees
uprooted in a concentrated area in a convergent pattern. The
tornado passed offshore again and dissipated before reaching the
opposite point on the lake.

Ef scale: the Enhanced Fujita scale classifies
tornadoes into the following categories.

EF0... weak... ... 65 to 85 mph
EF1... weak... ... 86 to 110 mph
EF2... strong... .111 to 135 mph
EF3... strong... .136 to 165 mph
EF4... violent... 166 to 200 mph
EF5... violent... >200 mph

Note:
the information in this statement is preliminary and subject to
change pending final review of the event and publication in NWS
storm data.


Jd/02


202 PM CST Fri Jan 20 2017

... NWS damage survey for 01/19/17 tornado event...
... Brief spin-up tornado on the shores of Logan Martin Lake...

.Treasure Island tornado...

Rating: EF-1
estimated peak wind: 90 mph
path length (statute): 0.7 miles
path width (maximum): 175 yards
fatalities: 0
injuries: 0

Start date: Jan 19 2017
start time: 558 PM CST
start location: 2 ENE Coosa island
start lat/lon: 33.4785 / -86.3045

End date: Jan 19 2017
end time: 600 PM CST
end location: 5 SSW Pell City
end lat/lon: 33.4877 / -86.3025

Survey summary:

A persistent mesocyclone spun up a brief weak tornado within a
line of thunderstorms as it passed through St Clair County. The
tornado touched down on Logan Martin Lake just south of the
Eastern Shore of Treasure Island. The tornado tracked northward
parallel to and just off the shores of the island, with the initial
damage pointing largely offshore. Four boathouses were destroyed
and a few trees were snapped or uprooted here, but the path of the
tornado was far enough offshore so as not to cause any structural
damage to the homes another 50 to 100 feet further inland. As the
tornado continued northward across a large Cove, it remained
completely over water. As it approached the northeastern tip of
the island, which jutted out into the lake, the tornado came ashore
again and peeled metal roofing off a well-built boathouse. The
tornado reached maximum strength here, with 10 large Hardwood trees
uprooted in a concentrated area in a convergent pattern. The
tornado passed offshore again and dissipated before reaching the
opposite point on the lake.

Ef scale: the Enhanced Fujita scale classifies
tornadoes into the following categories.

EF0... weak... ... 65 to 85 mph
EF1... weak... ... 86 to 110 mph
EF2... strong... .111 to 135 mph
EF3... strong... .136 to 165 mph
EF4... violent... 166 to 200 mph
EF5... violent... >200 mph

Note:
the information in this statement is preliminary and subject to
change pending final review of the event and publication in NWS
storm data.


Jd/02


Weather Severe Map
Alabama - Dense Fog Advisory , Record Report , Public Information Statement
Alaska - Wind Chill Advisory , Wind Chill Warning , Record Report
Arizona - Areal Flood Watch , Wind Advisory , High Wind Warning , Winter Weather Advisory , Winter Storm Warning
Arkansas - Flood Warning , Record Report , Public Information Statement
California - Flash Flood Warning , Areal Flood Warning , Areal Flood Warning, Flash Flood Warning , Flood Warning , High Surf Warning, Coastal Flood Advisory , Areal Flood Advisory, Flash Flood Watch , Areal Flood Advisory , Flood Advisory, Flood Watch , High Surf Warning , Areal Flood Advisory, Areal Flood Watch , High Surf Warning, High Surf Advisory, Coastal Flood Advisory , High Surf Advisory, Coastal Flood Advisory , Flash Flood Watch, High Surf Warning , Flash Flood Watch , High Surf Warning, High Surf Advisory, Coastal Flood Advisory, Areal Flood Advisory , High Wind Watch , Wind Advisory , High Wind Warning , Winter Weather Advisory, Winter Storm Warning , Winter Storm Warning, Winter Weather Advisory , Winter Storm Warning , Winter Weather Advisory , Winter Storm Watch , Winter Storm Watch, Winter Weather Advisory , Hydrologic Statement , Special Statement , Beach Hazard Statement, High Surf Warning , Public Information Statement
Colorado - Winter Weather Advisory , Winter Storm Warning , Public Information Statement
Florida - Coastal Hazard Statement , Dense Fog Advisory , Beach Hazard Statement , Record Report
Georgia - Record Report
Hawaii - High Surf Advisory , Special Statement
Idaho - Areal Flood Advisory , Special Statement , Air Quality Alert
Illinois - Flood Warning , Areal Flood Warning , Flood Advisory , Flood Watch , Dense Fog Advisory
Indiana - Flood Warning , Flood Watch , Flood Advisory , Dense Fog Advisory
Iowa - Flood Warning , Dense Fog Advisory , Record Report
Kansas - Record Report
Kentucky - Flood Warning , Record Report
Louisiana - Flood Warning , Record Report , Public Information Statement
Massachusetts - Special Statement
Michigan - Flood Warning , Flood Advisory , Dense Fog Advisory , Special Statement , Record Report
Minnesota - Dense Fog Advisory , Record Report
Mississippi - Flood Warning , Dense Fog Advisory , Record Report , Public Information Statement
Missouri - Dense Fog Advisory , Record Report , Public Information Statement
Nebraska - Record Report
Nevada - Areal Flood Watch , Wind Advisory , Winter Storm Warning , Winter Storm Watch , Winter Weather Advisory , Winter Storm Watch, Winter Weather Advisory , Winter Storm Warning, Winter Weather Advisory , Record Report
New Mexico - Wind Advisory , High Wind Warning , High Wind Warning, Wind Advisory , Winter Weather Advisory , Winter Storm Warning , Public Information Statement
North Carolina - Record Report
North Dakota - Dense Fog Advisory
Ohio - Flood Warning
Oregon - High Surf Warning, High Surf Advisory , High Surf Warning, High Surf Advisory, Flood Watch , High Surf Advisory , High Wind Watch , High Wind Warning , Winter Weather Advisory
South Carolina - Record Report
South Dakota - Dense Fog Advisory , Record Report
Tennessee - Record Report , Public Information Statement
Texas - Severe Thunderstorm Warning , Flood Warning , Areal Flood Advisory , Wind Advisory , High Wind Warning , High Wind Warning, Wind Advisory , Fire Weather Watch , Record Report , Public Information Statement
Utah - Winter Weather Advisory , Winter Storm Warning , Winter Weather Advisory, Winter Storm Warning , Winter Storm Warning, Winter Weather Advisory , Public Information Statement
Virginia - Record Report
Washington - Flood Warning , High Surf Advisory , Winter Weather Advisory
Wisconsin - Flood Warning , Flood Watch , Dense Fog Advisory , Special Statement
Wyoming - Public Information Statement
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