Area Forecast Discussion
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385 FXUS62 KTAE 190944 AFDTAE AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE TALLAHASSEE FL 544 AM EDT Sun May 19 2013 .Near Term [Through Tonight]...
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The shortwave trough that has been gradually moving through the eastern U.S. will remain north and east of the Tri-State region today as upper level ridging moves in from the west. This will result in very few places receiving rain this afternoon. The best chance for showers and thunderstorms will reside across portions of south-central Georgia where outflow from storms to the north may spark some convection later this afternoon. With less in the way of cloud cover and showers, and rising heights, expect warmer temperatures than yesterday with most inland locations climbing into the low 90s. Overnight, showers will come to an end and temperatures will fall into the lower to middle 60s. Fog development is expected once again tonight. Although the showers and thunderstorms that do develop today are expected to remain below severe limits, there may be just enough instability and lift with some of the outflow boundaries associated with the shortwave trof to produce a few strong storms across our extreme NE GA zones, where the 5% outlook area from SPC just encroaches on a few our our counties. Therefore, we cannot rule out small hail or brief gusty winds at this time, even though the more significant weather should remain to our north.
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&& .SHORT TERM [Monday Through Tuesday]...
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Fairly interesting (though mostly uneventful) forecast over the short term period, as the early summerlike conditions are expected to continue across the Tri-State area. High Temps should reach the lower 90s over many interior locations, with rain chances limited to the 20-30 percent range across the eastern half of the CWA, with only silent 10 PoPs over our western area. This activity will manifest itself in the form of isolated to scattered afternoon showers and thunderstorms, associated with a shortwave trof of low pressure, which is currently pushing southeastward through northern and central portions of GA.
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&& .LONG TERM [Tuesday Night through Saturday]...
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Long range models in general agreement with the overall pattern for this time period. An upper level ridge prevails across the region Tuesday and Wednesday with an upper low in the northern/central plains. This pattern shifts east later in the week resulting in a weak trough across the area for Thursday and Friday. By Saturday current trends are pointing toward ridging across the central CONUS. POPs will increase for the Thursday-Friday period to 30-40% and drop off to isolated activity for Tuesday and Saturday. Expect typical diurnal cycle convection with highs and overnight lows both slightly above normal.
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&& .Aviation...
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Low ceiling and visibility restrictions will lift shortly after sunrise this morning. All sites will then remain VFR through the evening hours. Later tonight, fog development is expected once again, and may be more widespread with the reduction of mid/upper level clouds.
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&& .MARINE... Generally light onshore winds and low seas will dominate our coastal waters for the next several days, with just some minor enhancements near the coast with the afternoon sea breeze. && .Fire Weather...
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Relative humidity values will remain above critical levels for the next several days. Thus, Red Flag conditions are not expected in the foreseeable future.
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&& .HYDROLOGY...
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Area rivers and streams will remain well below flood stage for the next several days with very little widespread rain in the forecast.
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&& .PRELIMINARY POINT TEMPS/POPS...
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Tallahassee 91 64 90 66 90 / 10 10 20 10 20 Panama City 83 68 85 69 84 / 0 0 10 10 10 Dothan 91 66 92 66 92 / 10 10 10 10 10 Albany 91 66 91 66 91 / 20 10 20 20 20 Valdosta 93 64 92 65 91 / 20 10 30 20 30 Cross City 91 63 88 64 89 / 10 10 30 20 30 Apalachicola 81 66 84 68 82 / 0 0 10 10 20
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&& .TAE WATCHES/WARNINGS/ADVISORIES... FL...None. GA...None. AL...None. GM...None. && $$ NEAR TERM...Harrigan/Gould SHORT TERM...Gould LONG TERM...Hollingsworth AVIATION...Harrigan MARINE...Gould FIRE WEATHER...Harrigan HYDROLOGY...Gould

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