


Area Forecast Discussion
Issued by NWS Raleigh/Durham, NC
Issued by NWS Raleigh/Durham, NC
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686 FXUS62 KRAH 280637 AFDRAH Area Forecast Discussion National Weather Service Raleigh NC 237 AM EDT Thu Aug 28 2025 .SYNOPSIS... Surface high pressure centered across our region will slip offshore this afternoon. A weak surface trough will drop south across the region late tonight and early Friday. A dry cold front will move south across the mid-Atlantic on Friday night and early Saturday and then stall across Georgia and South Carolina over the weekend. && .NEAR TERM /THROUGH TONIGHT/... As of 220 AM Thursday... * Considerable high cloudiness this morning will thin during the afternoon. * Highs will range between 3 and 7 degrees below average. The latest surface analysis shows surface high pressure centered over the central Appalachians with sub 60 degree dew points across just about all of NC. A general troughing pattern is noted across the eastern CONUS with a corridor of slightly enhanced mid level flow at about 35kts extending from the western OH Valley into the Carolinas. Multiple disturbances are noted in the flow aloft including one centered near WV and another across WI early this morning. The airmass across central NC is dry with PW values around 0.6 to 0.9 inches which is about 40-60% of normal. Fair weather is expected today although the bright sunshine on Wednesday will be muted by a good deal of mainly high clouds streaming across the region today. The cirrus clouds may experience a little orographic enhancement this morning. The result will be mostly cloudy skies this morning with the thickest clouds across the west and southwest. The high clouds will mix with mid clouds at times as well. Expect the mid and high clouds to thin a bit from northwest to southeast during the afternoon with the potential for a pretty sunset with some red hues shading the high clouds. Afternoon dew points will drop into the lower 50s, not quite as dry as Wednesday but still pleasant. Morning low level thickness values of 1275 to 1285m should result in highs in the upper 70s to lower 80s. Patches of mid and high clouds are expected this evening. These clouds will be driven by a disturbance aloft that will move off the coast late tonight allow for some clearing in central NC overnight. Lows tonight will range in the upper 50s to lower 60s. -Blaes && .SHORT TERM /FRIDAY THROUGH FRIDAY NIGHT/... As of 235 AM Thursday... * Sunnier skies and warmer conditions are expected on Friday. Another fair weather day is expected on Friday as a disturbance aloft moves offshore and a drier and more subsident pattern arrives. There should be a lot more sunshine and fewer clouds during the day compared to Thursday. Highs will range in the lower to mid 80s, generally within a couple of degrees of average. Afternoon dew points may mix out a bit more than on Thursday resulting in RH values dropping into the 30s. A dry cold front across the mid atlantic will drop south across WV and VA on Friday night. In addition, another disturbance aloft will approach from the west and northwest. The result will be an increase in mainly high clouds on Friday night. With the front nearby and some stirring of the wind along with a milder air mass, lows will be a little warmer than previous nights and range in the lower to mid 60s. -Blaes && .LONG TERM /SATURDAY THROUGH WEDNESDAY/... As of 115 AM Thursday... * The period of below normal temperatures continues. Aloft, a longwave trough will sit over the eastern US, with a series of embedded s/w disturbances moving through it, tracking across the region through the period. At the surface, high pressure over the OH Valley on Sat will track ewd across the mid-Atlantic and into the Northeast US through Mon night/Tue, possibly ridging swd into the area by Mon. Meanwhile, while model timing and strength varies, an area of low pressure may develop/track ewd along the nrn Gulf/Gulf Coast, then continue across FL before lifting newd off the East Coast through the middle of the week. While the forecast remains mostly dry, cannot rule out some showers with the passing s/w disturbances aloft and possibly with the low off the coast depending how close it gets. The GFS is largely dry, with the exception of Sun, but the EC is a bit wetter. Highest chances for showers is Sun aft/eve. As for temperatures, Sat will be the warmest day, with highs ranging from upper 70s to mid 80s and lows ranging from upper 50s north to mid 60s south. Temperatures should remain below normal through mid-week, with the coolest period Mon through Tue night. && .AVIATION /07Z THURSDAY THROUGH MONDAY/... As of 150 AM Thursday... VFR conditions and fair weather will prevail across central NC during the 24 hour TAF period as a couple of weak weather systems bring periods and patches of mainly mid and high clouds. Mid and high level moisture enhanced by a pair of upper air disturbance will spread widespread high cirrus clouds across the region for this morning and early afternoon followed by some clearing late this afternoon and evening with another area of high clouds late tonight. A couple of intervals of mid clouds are possible this afternoon and evening. With any CIGs at or above 6kft, VFR conditions are expected. Very light to calm winds this morning will become light northeast to southeasterly this morning at less than 5kts. Winds will become light south to southwest at 4 to 7kts this afternoon and then light and variable at less than 5 kts tonight. Looking beyond 06Z Friday: Generally fair weather and VFR conditions are expected through late Saturday. The stalled front to our south may nudge north with a possible surface wave developing on the front on Sunday. This will result in an increase in moisture and a small chance of rain and perhaps some sub-VFR ceilings during Sunday afternoon and evening, mainly across the south and southeast. Otherwise, fair weather is expected into early next week. -Blaes && .RAH WATCHES/WARNINGS/ADVISORIES... None. && $$ SYNOPSIS...Blaes NEAR TERM...Blaes SHORT TERM...Blaes LONG TERM...KC AVIATION...Blaes