Area Forecast Discussion
Issued by NWS Charleston, WV
Issued by NWS Charleston, WV
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
988 FXUS61 KRLX 260816 AFDRLX Area Forecast Discussion National Weather Service Charleston WV 416 AM EDT Sat Sep 26 2026 .WHAT HAS CHANGED... Have issued an SPS for areas of dense fog across portions of the forecast area until 9 AM this morning. Otherwise, the forecast remains consistent with the prior cycle. A 12Z Aviation Discussion update was also issued. && .KEY MESSAGES... 1.) Seasonably cool and mainly dry weather persists through the weekend. A warming trend begins Tuesday, with the next system arriving towards the end of the work week. && .DISCUSSION... KEY MESSAGE 1... A quiet morning across the area courtesy of surface high pressure centered across the northern Great Lakes. This has resulted in mostly clear skies and calm flow, allowing for chilly temperatures and river valley fog once again southeast of the Ohio River. Areas of dense fog will be possible in the `typical` locations, but overall, coverage is expected to be slightly less than that of yesterday morning. Temperatures this morning will bottom out in the 40s across the lowlands, with 30s possible across the mountain valleys. Some patchy frost could occur across the typical northern mountain valley cold spots, save the river valleys. Surface high pressure to the northwest will remain in control of the weather through the weekend, bringing mostly clear skies amid seasonably cool temperatures. Highs will generally be ~ 5 degrees below normal, with mid 60s to low 70s across the lowlands, all amid light northerly breezes during the afternoons. Lows tomorrow morning will be a few degrees warmer than this morning, with river valley fog expected east/south. A retrograding nor`easter could result in isolated light showers across the far northeast CWA late Sunday or Sunday night, but any rainfall would remain light, generally 0.10" or less. Otherwise, dry weather prevails. A gradual pattern shift begins early next week as a modest upper ridge begins to shift east over the area. This results in continued dry weather into Wednesday, if not longer. Low-end rain chances return late Wednesday onward as a front begins to approach the region. Timing/placement discrepancies remain between models resulting in continued low confidence. The overall theme remains fairly consistent though, with mainly dry weather continuing through the work week, with a trend towards more unsettled heading into next weekend as the front works into the area amid an increasingly moist Gulf airmass. Below normal temperatures on Monday will transition to near normal on Tuesday, with slightly above expected Wednesday onward courtesy of persistent return flow. && .AVIATION /07Z SATURDAY THROUGH WEDNESDAY/... River valley fog has steadily expanded across southwest Virginia, northeast Kentucky, and West Virginia. VLIFR restrictions are expected to continue at KCRW and KEKN until after dawn. Fog will lift / scatter from ~1130-1430Z this morning. Dry conditions under mainly clear skies then persist through the remainder of the TAF period (until 12Z Sunday morning). Some river valley fog will once again develop tonight, with restrictions expected at KCRW and KEKN. Fog coverage is expected to be less than this morning. Light northerly flow is expected during the day today, with occasional breezes up to 15 kts possible across the lowlands, while 20-25 kts across the higher terrain. Calm or very light northwesterly flow is expected tonight. FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 06Z SUNDAY... FORECAST CONFIDENCE: Medium with fog, otherwise high. ALTERNATE SCENARIOS: Restrictions with fog this morning and tonight may vary from the forecast. EXPERIMENTAL TABLE OF FLIGHT CATEGORY OBJECTIVELY SHOWS CONSISTENCY OF WFO FORECAST TO AVAILABLE MODEL INFORMATION: H = HIGH: TAF CONSISTENT WITH ALL MODELS OR ALL BUT ONE MODEL. M = MEDIUM: TAF HAS VARYING LEVEL OF CONSISTENCY WITH MODELS. L = LOW: TAF INCONSISTENT WITH ALL MODELS OR ALL BUT ONE MODEL. DATE SAT 09/26/26 UTC 1HRLY 08 09 10 11 12 13 14 15 16 17 18 19 EDT 1HRLY 04 05 06 07 08 09 10 11 12 13 14 15 CRW CONSISTENCY M M M M M L H H H H H H HTS CONSISTENCY L L L M M H H H H H H H BKW CONSISTENCY H H L L H H H H H H H H EKN CONSISTENCY M M M M M L H H H H H H PKB CONSISTENCY L M M M M H H H H H H H CKB CONSISTENCY L L M M L H H H H H H H AFTER 06Z SUNDAY... IFR conditions are possible in morning river valley fog through Wednesday. && .RLX WATCHES/WARNINGS/ADVISORIES... WV...None. OH...None. KY...None. VA...None. && $$ DISCUSSION...GW AVIATION...GW