Area Forecast Discussion
Issued by NWS Raleigh/Durham, NC
Issued by NWS Raleigh/Durham, NC
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695 FXUS62 KRAH 280011 AFDRAH Area Forecast Discussion National Weather Service Raleigh NC 811 PM EDT Mon May 27 2024 .SYNOPSIS... A cold front will move through the area later tonight and early Tuesday. Another dry front moves through the area late Wednesday, followed by high pressure building in for the latter half of the week. && .NEAR TERM /THROUGH TONIGHT/... As of 811 PM Monday... The Tornado Watch has been cancelled early for our CWA as the thunderstorm activity have moved northeast. A few isolated showers are possible through early evening over the NW Piedmont, otherwise dry conditions expected through the night. Skies will slowly clear west to east overnight with temperatures ranging from mid 60s NW to low 70s across the SE. && .SHORT TERM /TUESDAY AND TUESDAY NIGHT/... As of 340 PM Monday... A longwave trough will be over the Eastern US on Tuesday and Tuesday night, as any shortwave energy stays well to our north. At the surface, a cold front that pushed through central NC on Monday night and Tuesday morning will linger over eastern NC through the day. So a stray shower or storm can`t be entirely ruled out in the far SE (mainly Sampson County) in the afternoon, so have slight chance POPs there, but otherwise it will be dry and mostly sunny across the region. NW flow behind the cold front will bring much lower dew points in the 50s. However, it will take a while for the cooler air to get here, so expect another warmer-than-normal day with highs in the mid-to-upper-80s, maybe touching 90 in the far south. Lows Tuesday night will be in the upper-50s to mid-60s. && .LONG TERM /WEDNESDAY THROUGH MONDAY/... As of 400 PM Monday... The extended period looks to be largely dry through at least Saturday. Mid/upper troughing will linger over the Eastern Seaboard from Wednesday through Friday, with a series of embedded shortwaves moving within it. A particularly vigorous one looks to move SE across the Mid-Atlantic on Thursday night and Friday. However, these systems look moisture starved. The 12z GFS and CMC do spit out light precipitation in the Coastal Plain on Thursday night/early Friday, so added slight chance POPs there, but no significant rain is expected. Cool surface high pressure building down from the Great Lakes will bring a downward trend in temperatures through the workweek, with near-normal highs on Wednesday dropping to 5-10 degrees below normal (mid-to-upper-70s) by Friday. Lows will drop into the upper-40s to lower-50s on Saturday morning. The surface high and associated mid/upper ridging will build over central NC on Saturday, bringing another dry day with highs increasing back to upper-70s to lower-80s. A weak shortwave may move across the area on Sunday/Monday, and the ECMWF and a minority of its ensembles have some precipitation. So carry slight chance POPs on these days, but the GFS and CMC are dry and confidence in any significant rain is low. && .AVIATION /23Z MONDAY THROUGH SATURDAY/... As of 720 PM Monday... 24 hour period: Only a minimal chance for a shower or thunderstorm remains over the evening hours - the only showers on the radar are currently southwest of INT/GSO and should remain more than 10 miles away from the terminals. VFR conditions are expected through the forecast period, although with a very high dewpoint currently being reported at RWI - 79 degrees - and some brief fog earlier, think that the chance for fog will continue overnight there. Light wind out of the southwest will veer to the northwest on Tuesday with an isolated gust to 15 kt possible Tuesday afternoon. Outlook: VFR conditions should persist through the extended as dry high pressure wedges in. && .RAH WATCHES/WARNINGS/ADVISORIES... None. && $$ SYNOPSIS...CA NEAR TERM...CA SHORT TERM...Danco LONG TERM...Danco AVIATION...Green/Luchetti