Upper St. Martin Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

Special Statement
Issued: 12:13 PM CDT Aug. 22, 2017 – National Weather Service

... Tropical funnel cloud sighted...

At 1205 PM... the National Weather Service has received a report of
a funnel cloud that is possibly a waterspout or land spout in
western Cameron Parish between Johnson Bayou and the south end of
Sabine Lake.

A very moist and unstable tropical airmass is in place across the area.
Meanwhile... the vertical wind profile over the area is light and
variable. These conditions are favorable for the development of
tropical funnel clouds... especially where rain cooled
boundaries... known as outflow boundaries... and the seabreeze
collide.

These tropical funnel clouds are usually short-lived and do not reach the ground.
If The Funnel cloud becomes more severe and reaches the
ground... minor damage may occur... and a Tornado Warning will
likely be issued.

Stay tuned for later statements and updates on this weather situation.


07


1213 PM CDT Tue Aug 22 2017

... Tropical funnel cloud sighted...

At 1205 PM... the National Weather Service has received a report of
a funnel cloud that is possibly a waterspout or land spout in
western Cameron Parish between Johnson Bayou and the south end of
Sabine Lake.

A very moist and unstable tropical airmass is in place across the area.
Meanwhile... the vertical wind profile over the area is light and
variable. These conditions are favorable for the development of
tropical funnel clouds... especially where rain cooled
boundaries... known as outflow boundaries... and the seabreeze
collide.

These tropical funnel clouds are usually short-lived and do not reach the ground.
If The Funnel cloud becomes more severe and reaches the
ground... minor damage may occur... and a Tornado Warning will
likely be issued.

Stay tuned for later statements and updates on this weather situation.


07

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