Area Forecast Discussion
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083 FXUS62 KTAE 161844 AFDTAE AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TALLAHASSEE FL 244 PM EDT Thu May 16 2013 .NEAR TERM [Tonight]...
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We will continue to trend towards normal tonight with mostly clear skies and calm winds, along with a general increase in relative humidity. This increase in RH may also provide areas of fog early Friday morning for much of nrn FL into southeast AL/swrn GA, which should burn off quickly after sunrise. Low temps in the lower 60s will be common around the area.
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&& .SHORT TERM [Friday through Sunday]...
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The closed low (currently over OK) is expected to translate slowly eastward across the Southeast U.S. through this weekend. However, the bulk of the deep layer moisture and Q-G forcing associated with this feature is likely to be north of our forecast area. This will leave our region with PoPs in the 20-30% range, mainly during the afternoon and evening hours when instability and mesoscale boundary interactions are maximized. It will finally feel like late Spring, as highs approach 90 deg and lows stay in the 60s.
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&& .LONG TERM [Monday through Thursday]...
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Deep layer ridging is expected over the Southeast U.S. through mid week. A weak trough is forecast to develop later in the work week. The GFS and ECMWF differ on exactly when and how much this trough will develop. Regardless, the NWP guidance consensus is close to climatology for PoP and temperatures. The PoP will be in the 20-30% range through the period, mainly during the afternoon and early evening hours. It will be a warm period, especially given our relatively cool spring so far, with highs near 90 and lows in the 60s.
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&& .AVIATION [Through 18z Thursday]...
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Forecast guidance indicates the increase in RH overnight will likely support low clouds and areas of fog around the area. This should bring a 4-5 hr window MVFR and possible IFR conditions for all sites late tonight into early Friday morning. Expect return to VFR and light ssw winds will occur by mid morning.
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&& .MARINE...
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Winds and seas will be at their typically low late spring/early summertime values. Winds and inland water chop may increase at the coast during the afternoon hours due to the sea breeze circulation enhancement.
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&& .FIRE WEATHER...
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Red flag conditions are not expected for the next several days.
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&& .HYDROLOGY...
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Area rivers and streams will likely remain well below flood stage for the next several days.
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&& .PRELIMINARY POINT TEMPS/POPS...
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Tallahassee 61 88 61 88 64 / 0 0 0 10 10 Panama City 66 82 67 83 69 / 0 0 0 10 10 Dothan 62 88 65 88 67 / 0 10 10 10 10 Albany 62 89 64 90 65 / 0 10 10 20 20 Valdosta 61 87 63 88 63 / 0 10 10 10 20 Cross City 61 88 62 88 63 / 0 0 10 20 10 Apalachicola 64 80 65 81 67 / 0 0 0 10 0
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&& .TAE WATCHES/WARNINGS/ADVISORIES... FL...None. GA...None. AL...None. GM...None. && $$ NEAR TERM...Evans SHORT TERM...Fournier LONG TERM...Fournier AVIATION...Evans MARINE...Fournier FIRE WEATHER...Fournier/Block HYDROLOGY...Fournier

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