Area Forecast Discussion
Issued by NWS Raleigh/Durham, NC
Issued by NWS Raleigh/Durham, NC
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634 FXUS62 KRAH 120445 AFDRAH Area Forecast Discussion National Weather Service Raleigh NC 1145 PM EST Tue Nov 11 2025 .SYNOPSIS... Cold high pressure to our south will remain in control through tonight. Another high pressure will build into the region from the west Thursday and Friday bringing a warming trend. && .NEAR TERM /THIS AFTERNOON THROUGH TONIGHT/... As of 122 PM Tuesday... Mainly clear with another sub-freezing cold night ahead. Mainly sunny skies were observed this afternoon throughout the SE and Mid-Atlantic states. Temperatures remained cold with readings in the 40s over central NC. The arctic high pressure will be centered to our south tonight, with westerly winds at 15-20 mph this afternoon expected to become SW tonight at 10 mph. Dew/frost points were in the teens with the exceptionally dry air mass. Skies are expected to be mostly clear overall tonight. However, there may be a period of high level cloudiness, as the latest hi-res guidance suggests with a favorable wind profile for some cirrus across the west and north between 1000 PM and 300 AM. Thus, temperatures will rapidly cool this evening with relatively light (10 mph or less) wind. However, surface winds are forecast to increase a bit overnight which will bring some mixing and reduce the radiational cooling. We still expect lows in the upper 20s to lower 30s. && .SHORT TERM /WEDNESDAY AND WEDNESDAY NIGHT/... As of 1228 PM Tuesday... * Mostly sunny, breezy and continued dry. Surface high pressure will shift near the FL/GA border by Wed morning and result in surface winds backing to a more southwesterly wind direction. As a result, low-level thicknesses are expected to rise roughly 60m compared to Mon evening (roughly 40m compared to forecasted thicknesses for this evening) and favor high temperatures 10 to 15 degrees warmer compared to today. Additionally, a tight pressure gradient will remain in place and contribute to sustained winds of 15 mph and frequent gusts 20 to 25 mph, mainly late morning through the afternoon. Relative humidity values should largely stay above 30% as rapid warming at the surface will be offset by rising dew points through peak heating. This should limit the need for any additional fire weather headlines at this time. Wind gusts are expected to rapidly abate around sunset. Light stirring and/or pockets of calm winds and clear skies should result in periodic radiational cooling Wed evening into the early overnight hours. A streamer of upper-level moisture stretching from the northern Plains into the Ohio Valley Wed evening will be directed over the Mid-Atlantic overnight into Thurs. This moisture will likely be orographically lifted and result in overcast skies blossoming over the I-85 corridor after midnight. This should put a lid on any additional radiational cooling potential across the northern Piedmont, but locations in the southern Piedmont may still be able to cool into the mid-30s by daybreak. && .LONG TERM /THURSDAY THROUGH TUESDAY/... As of 1228 PM Tuesday... The forecast for the extended period continues to look dry. High pressure will be over the southeastern United States, and while a cold front could try to sneak across the VA-NC border Saturday, there will be minimal moisture, and there is no chance of rain in the forecast through at least Sunday. The first real hint of any precipitation chances come from the European ensemble Sunday night, but this appears to be a wet outlier, with the GFS ensemble, deterministic GFS, and deterministic ECMWF all holding off until at least Monday night if not Tuesday to bring any precipitation into the area. The fire weather concerns will be less than they are today or tomorrow, but still not zero to end the work week. Minimum RH values on Thursday and Friday will be in the upper 20s and 30s, and there has been minimum rainfall recently. However, maximum wind gusts will only be 15-20 mph on Thursday and only 10-15 mph on Friday. By the weekend, minimum RH values only drop into the 40s. High temperatures should return back to normal (low to mid 60s) by Thursday, with nearly all locations rising into the 70s by Sunday. The one caveat is whether cooler air could slip into northern counties on Saturday with the back door cold front. Highs will drop a couple degrees on Monday and Tuesday next week. After another night in the 30s Thursday night, lows should return to the 40s by Friday night, with some southeastern locations only falling into the lower 50s Sunday night. && .AVIATION /05Z MONDAY THROUGH SUNDAY/... As of 1145 PM Tuesday... VFR conditions are expected at all terminals through the next 24 hours. Weakly perturbed cyclonic flow aloft will support periods of high clouds through the period. A 35-45 kt LLJ around 1.5 KFT above the nocturnal inversion will result in LLWS across most of the area thru daybreak. After sunrise, breezy SWLY winds of 15-25 kts will develop and persist into the afternoon before diminishing Wednesday evening. Outlook: Predominately dry VFR conditions are expected to prevail through the weekend. && .RAH WATCHES/WARNINGS/ADVISORIES... None. && $$ SYNOPSIS...RAH NEAR TERM...RAH SHORT TERM...AS LONG TERM...Green AVIATION...CBL