Area Forecast Discussion
Issued by NWS Columbia, SC

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356 FXUS62 KCAE 060014 AFDCAE Area Forecast Discussion National Weather Service Columbia SC 814 PM EDT Sun May 5 2024 .SYNOPSIS... Scattered showers and thunderstorms continue through the early this week as multiple disturbances move across the region. A lull in activity is anticipated for midweek, with increasing chances of showers and storms towards the end of the week. Expect generally above average temperatures through the latter half of the week before transitioning to near or slightly below average next weekend. && .NEAR TERM /UNTIL 7 AM MONDAY MORNING/...
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Isolated convection still in progress, with some new development recently over the Central Midlands along an outflow boundary. Latest guidance and current trends suggest a slight chance POP is in order through late evening or early tonight. Some new development possible ahead of an approaching upper disturbance either late tonight or early tomorrow over the NW FA. Lows in the 60`s.
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&& .SHORT TERM /7 AM MONDAY MORNING THROUGH MONDAY NIGHT/... A shortwave trough is forecast to move from the Tennessee Valley into the Southeast through the day, bringing another round of shower and thunderstorm activity to the area. This shortwave looks be a bit deeper than the one passing on Sunday, which will likely result in more areal coverage of thunderstorms than Sunday afternoon. Moisture remains on the high side as the airmass overhead hasn`t really changed all that much over the past couple of days. PWATs of over 1.5` are expected throughout the day with an uptick ahead of the incoming shortwave. Forecast soundings indicate that much of the atmospheric column will be well saturated, which would lead to the potential for locally heavy rain and potential for urban flooding with the activity. While CAPE values are forecast to be around 1000 J/kg or so, a lack of shear limits the severe weather potential. Temperatures are expected to be near or slightly above average during the day and relatively warm overnight. && .LONG TERM /TUESDAY THROUGH SUNDAY/... Shortwave ridging aloft on Tuesday helps to limit shower activity for the day; however, a weak shortwave trough is forecast to pass over the area. This could bring some isolated shower or thunderstorm activity in the afternoon, mainly for the eastern portions of the forecast area. The ridging then continues through midweek, allowing for a warming trend and a brief respite in activity ahead of the next incoming trough and associated front. Depending on the timing of the upper trough and cold front moving toward the area, some stronger storms could be possible for Thursday afternoon as increased moisture, instability, and shear may be in place. The chances of precipitation continues for Friday as well before drying out for the weekend. && .AVIATION /00Z MONDAY THROUGH FRIDAY/...
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VFR conditions generally expected through the period but possible restrictions in morning stratus/fog and with scattered convection Monday afternoon. Afternoon convection has generally waned although there are some isolated storms moving into the CSRA which may affect AGS/DNL but for now left out of the forecast and will amend as needed. Some scattered clouds expected overnight increasing a bit during the predawn hours with some stratus cloud development possible. There is not as strong a signal as in previous nights so will carry prevailing VFR cigs but have restrictions in a tempo group from around 10-15z. Stratus seems more favored than fog given a 25 knot low level jet. Isolated to scattered convection is expected again on Monday with a shortwave moving through the region but confidence in impacts to the terminals not high enough this far out to include at this time. EXTENDED AVIATION OUTLOOK...Fog and stratus restrictions become less likely on Tuesday and Wednesday as drier air moves into the region. Chances of mainly afternoon and evening convection with associated restrictions each day.
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&& .CAE WATCHES/WARNINGS/ADVISORIES... SC...None. GA...None. && $$