SPSMOB) for additional details. /21

&&

.AVIATION...
18Z issuance...VFR continues underneath mainly clear skies through
the next 24 hours. Light northerly winds this afternoon and evening
should become easterly by Tuesday morning as high pressure moves to
the east of the area. /21

&&

PREV DISCUSSION... /issued 359 AM CST Mon Nov 21 2016/

NEAR TERM /Now Through Monday night/...Surface high pressure ridging
into the region from the north and deep layer ridging aloft will
continue to dominate area weather. Clear skies will continue to
prevail so chilly morning temperatures below or near freezing (a bit
warmer along the coast) will rebound rapidly after sunrise climbing
into the mid to upper 60s by afternoon. Tonight...with a very dry
airmass in place under clear skies...conditions will again be prime
for efficient radiational cooling, leading to a widespread freeze
across many inland locations. A freeze warning is in effect for all
but the immediate coastal zones through 8 AM. Could see a few
sheltered sites closer to the coast that decouple from the northerly
wind flow fall near to below freezing...but most of the coastal zone
should remain above. A freeze warning is also in effect again tonight
through early Tuesday morning for most inland locations. /08

SHORT TERM /Tuesday Through Wednesday night/...Dry conditions and
above normal temperatures will characterize both Tuesday (around 70
degrees areawide) and Wednesday (mid to upper 70`s areawide) as
surface high pressure builds into the southeastern U.S. and winds
shift from easterly Tuesday to more southerly Wednesday. East to
southeasterly flow returning low-level moisture...combined with
increasing clouds from an approaching front...will keep overnight
lows Tuesday night in the low 40`s inland and low 50`s near the
coast. This front will bring a chance of showers Wednesday afternoon
for the northwest portions of the forecast area, and a slight chance
of showers across the region Wednesday night. Not expecting much in
terms of accumulation given limited moisture and weak, fast moving
nature of the front itself. Also not anticipating any thunder as
instability will be weak to non-existent along and ahead of the
front. Overnight lows Wednesday night will range from low to mid 50`s
inland to around 60 near the coast. /49

LONG TERM /Thursday Through Sunday/...The weak frontal boundary
stalls offshore Thursday, maintaining a slight chance of showers
primarily offshore and along the western Florida panhandle coast.
Another weak, fast moving trough traverses across the Great Lakes
region Friday, sending another weak front through the area. Similar
to Wednesday, this front is expected to provide little in terms of
rainfall as moisture will remain limited and upper dynamics weak. A
drier and cooler airmass builds in behind Friday`s front as high
pressure once again builds over the area. However, following the
theme of this current pattern, looks like the high pressure doesn`t
stick around for long as yet another trough digging into the western
CONUS ejects out over the Plains and moves quickly east towards the
Great Lakes. Afternoon temps will remain in the mid to upper 70`s
Thursday and Friday before cooler air moves in and temps drop into
the upper 60`s Saturday and Sunday. Overnight lows will remain in the
low to mid 50`s Thursday night before cooler post-frontal temps in
the low to mid 40`s set in Friday and Saturday nights. /49

MARINE...A light to moderate offshore flow will continue into
Tuesday. Winds will gradually become east to southeasterly Tuesday
as high pressure builds into the Southeastern States. A south to
southwesterly wind flow begins to develop Wednesday in advance of a
cold front approaching from the west. Winds turn west to
northwesterly Friday following frontal passage. Seas are expected to
range between 1 to 3 feet over Gulf waters through the week. /08

FIRE WEATHER...High pressure and a very dry airmass persists over
the area into Tuesday. Mixing layer winds will be light...but
critically low relative humidity values below 28 percent...with
minimums around 15 to 20 percent...are expected areawide this
afternoon and across mainly eastern zones Tuesday afternoon. These
humidities combined with high ERC values have warranted the issuance
of a Red Flag Warning for the western Florida panhandle from 10 AM
CST this morning until 5 PM CST this afternoon. A Fire Weather Watch
is also in effect for the same area and similar conditions Tuesday
morning and afternoon. /49

&&

.MOB WATCHES/WARNINGS/ADVISORIES...
AL...None.
FL...Red Flag Warning until 5 PM CST this afternoon for FLZ201>206.

     Fire Weather Watch from Tuesday morning through Tuesday
     afternoon for FLZ201>206.

MS...None.
GM...None.
&&

$$