797 FXUS62 KRAH 180508 AFDRAHArea Forecast Discussion National Weather Service Raleigh NC 107 AM EDT Thu Sep 18 2025
.SYNOPSIS... High pressure will extend over the area into the weekend with a warming trend.
&&
.NEAR TERM /TODAY THROUGH TONIGHT/... As of 105 AM Thursday...
Dry and warmer weather today.
As low pressure continues to pull away to the NE, high pressure will take over. After some early morning stratus and fog, mainly in the north and east the skies will become mostly sunny. It will take a bit longer in the NE, but skies there will become mostly sunny this afternoon. Highs from around 80 NE ranging into the upper 80s southwest are favored today. Winds will be light and variable. Mostly clear skies tonight with some patchy late night fog in the NE. Lows in the lower to mid 60s.
&&
.SHORT TERM /FRIDAY AND FRIDAY NIGHT/... As of 105 AM Thursday...
Continued warming and remaining dry.
Upper ridging with a dry NW flow aloft with surface high pressure will bring mainly sunny and dry weather Friday. Highs should warm into the mid 80s NE ranging to around 90 SW. Mainly clear skies Friday night are expected. Lows generally in the lower to mid 60s are expected.
&&
.LONG TERM /SATURDAY THROUGH WEDNESDAY/... As of 345 PM Wednesday...
On Saturday, surface high pressure will move SE from southern Quebec into northern New England. A cool air wedge associated with this high will drop a backdoor cold front through central NC which stalls to our south. The front may also be associated with isolated showers (mainly north and west), but any convection would be limited by the high pressure wedging and a lack of upper forcing. E/NE winds will be a bit breezy on Saturday and especially Sunday. While Saturday still looks warm with highs in the mid-to-upper-80s, it will turn slightly cooler behind the front on Sunday with highs in the upper- 70s to mid-80s. Forecast lows this weekend are in the lower-to-mid- 60s.
The cool air wedging will gradually move to our west and erode early next week as the surface high pressure system over New England moves east into the Atlantic. This will result in a slow warming trend. After Monday has similar highs to Sunday (upper-70s to mid-80s), temperatures will increase to lower-80s to upper-80s by Wednesday. Meanwhile a mid/upper trough moving into the Pacific NW on Sunday will become a cutoff low that is nearly stationary somewhere over the Plains from early to mid next week. While any small shower/storm chances look confined to the SE near the stalled front on Sunday and Monday, the cutoff low and increasing PW values may bring a better chance areawide on Tuesday and Wednesday. However, most guidance at this time keeps any significant precipitation to our west. The wet deterministic 12z GFS is an outlier even compared to its own ensembles, and the ECMWF is largely dry. Still, model differences and this being days 7-8 mean there is time for things to change.
&&
.AVIATION /06Z THURSDAY THROUGH MONDAY/... As of 105 AM Thursday...
06Z update: The highest probabilities of fog/stratus and associated flight restrictions (MVFR to possibly IFR for several hours around sunrise) are expected at KRWI and KFAY. perhaps at KGSO. Otherwise, generally VFR conditions are expected through 06z/Friday.
Outlook: Largely VFR conditions are expected through Monday.
&&
.RAH WATCHES/WARNINGS/ADVISORIES... None.
&&
$$
SYNOPSIS...RAH NEAR TERM...RAH SHORT TERM...RAH LONG TERM...Danco AVIATION...RAH
NWS RAH Office Area Forecast Discussion