649 FXUS62 KRAH 080951 AFDRAHArea Forecast Discussion National Weather Service Raleigh NC 550 AM EDT Mon Sep 8 2025
.SYNOPSIS... A cold front will settle off the coast of the southeastern United States into the middle of the week as cool high pressure extends into the area from the Mid-Atlantic.
&&
.NEAR TERM /TODAY AND TONIGHT/... As of 205 AM Monday...
* Pleasant weather with low humidity and temps typical of late Sept
The surface front is well offshore of NC at the moment, but the 925- 850 mb front is still along SE sections of the state. That has led to a narrow line of patchy showers over the eastern Sandhills to the Coastal Plain, where frontogenesis is acting on some weak instability. We would expect these showers to dissipate by the early morning hours, if not sooner, as the low-level front continues to push south of the area.
A very pleasant day will be felt for the start of the work week. Cool high pressure will extend down from the OH valley and Mid- Atlantic states for highs typical of late September with mid 70s in the NW to around 80 in the SE. Dewpoints are also expected to mix out to the mid 40s NW to low to mid 50s elsewhere, making for picture perfect humidity. The pressure gradient between the high and the offshore front will promote some gusts out of the NE today at 15- 25 mph, which may continue at times to 10-15 mph this evening before relaxing somewhat overnight. Lows tonight will dip below average as well under generally clear skies (just a few patchy high clouds) with low 50s NW to upper 50s SE. A few areas of upper 40s cannot be rule out in the N and NW Piedmont.
&&
.SHORT TERM /TUESDAY AND TUESDAY NIGHT/... As of 205 AM Monday...
* Continued pleasant weather with increasing clouds
Overall, pleasant weather is expected to continue for our Tue. Cool high pressure will continue to extend down the central and southern Appalachians from the northern Mid-Atlantic. The airmass will be quite similar to Mon, favoring highs once again below normal from the mid 70s NW to upper 70s in the SE. We should see clouds start to increase through the day and especially the evening and overnight. The offshore front that will linger is forecast to buckle slightly westward but remain offshore as a weak area of low pressure forms off the NC coast Tue night. That could lead to some very isolated showers in the far eastern Coastal Plain, though most areas should be dry. The main impact may just be some low stratus building westward mainly along/east of I-95 toward daybreak Wednesday. Lows should be warmer with the cloud cover with mid 50s NW to low 60s SE.
&&
.LONG TERM /WEDNESDAY THROUGH SUNDAY/... As of 205 AM Monday...
The mean longwave trough will persist across the eastern US through next weekend, and the presence of nearly continuous confluent upper- level flow over the northeastern US will support relatively strong high pressure to extend into our area. The resultant drier northeasterly low-level flow will extend the period of at or below normal temperature essentially through the weekend as well. The combination of shortwave energy emanating from the Gulf late Tue and early Wed and a shortwave moving through the Midwest Thursday should energize the stationary front off the NC coast, resulting in a couple waves of low pressure moving northeast along the coast. The associated precip is forecast to remain confined to the coast, but we should see some increased low-clouds Wed with the enhanced northeasterly flow, especially across eastern counties. Otherwise theres not much sensible weather in the forecast until perhaps early next week as a stronger closed low may drop south out of the Great Lakes region. Highs will range from the upper 70s midweek to lower 80s late week and into the weekend. Lows will be in the mid and upper 50s.
&&
.AVIATION /12Z MONDAY THROUGH FRIDAY/... As of 550 AM Monday...
There is high confidence in VFR conditions through the 24-hour TAF period. Gusts will pick up out of the NE this morning to between 18- 22 kt, highest at the eastern sites. These gusts may continue into the evening, but largely should weaken after sunset.
Outlook: VFR conditions should prevail into much of the upcoming work week although a stalled front near the coast could retreat and favor some patchy MVFR ceilings and a chance of showers across FAY/RWI late Tuesday into Wednesday.
&&
.RAH WATCHES/WARNINGS/ADVISORIES... None.
&&
$$
SYNOPSIS...Kren NEAR TERM...Kren SHORT TERM...Kren LONG TERM...Smith AVIATION...Kren
NWS RAH Office Area Forecast Discussion