Area Forecast Discussion
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FXUS62 KKEY 230226

Area Forecast Discussion
National Weather Service Key West FL
1026 PM EDT Wed Mar 22 2017

Under clear skies and light mostly north winds, temperatures are
hovering around 70 degrees. Meanwhile, local radars are not
detecting any precipitation echoes in our area. Surface wise, a
trough is draped across central Florida and the adjacent Gulf and
Atlantic Ocean. On our marine district, a divergent wind flow is
evident with north to northeast winds from Sand Key light to
beyond Pulaski Shoal Light and northwest winds eastward.
Otherwise, our evening sounding reveals limited moisture (pwat .70
inches) with a shallow and weak 1 degree C inversion based at 850
mb. North to northeast winds extend up to 500 mb, before backing
to northwest above.


.SHORT TERM...(Rest of Tonight)
Ahead of a trough over central Florida, the axis of a persistent
deep layered ridge extending from the Gulf of Mexico to extreme
south Florida and our region will maintain strong mid and upper
level descent. Given the large scale subsidence and limited
moisture, zero pops will be maintained in the grids. Under mostly
clear skies and winds becoming mostly north, temperatures will
fall into the mid and upper 60s.


With the thermal trough dissipating later tonight, winds will
become mainly north near 10 knots except on the Florida Straits


VFR will prevail at EYW & MTH through the terminal forecast
period. Expect northerly light to gentle breezes to continue,
veering to the east Thursday afternoon. A frontal boundary will
approach the island chain towards the end of the forecast period,
around or just beyond 24/00z.




Data Collection......Chesser

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