Area Forecast Discussion
Issued by NWS Charleston, WV

Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
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 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
-- Highlight Changed Discussion --
-- Discussion containing changed information from previous version are highlighted. --
000 FXUS61 KRLX 251018 AFDRLX Area Forecast Discussion National Weather Service Charleston WV 618 AM EDT Tue Oct 25 2016 .SYNOPSIS... High pressure through Wednesday. Strong cold front crosses Thursday, and another possibly on Sunday. && .NEAR TERM /THROUGH TONIGHT/... As of 250 AM Tuesday... High pressure will be in control today today and overall it looks like picture perfect weather. We will see plenty of sunshine, and with the low dew points we will see a large diurnal swing. Although we start out in the mid 30s in most areas, by this afternoon we will recover back into the low 60s nearly everywhere. However, it will be cooler and in the 50s across the far northern CWA and in the Eastern West Virginia Mountain Counties. By late afternoon we will also see an increase in mid to upper level clouds and they will likely linger into tonight. This will make for low temperatures a bit warmer for early tomorrow morning, so not expecting as many areas of frost that we saw this morning. && .SHORT TERM /WEDNESDAY THROUGH THURSDAY NIGHT/... As of 300 AM Tuesday... A high pressure system moves east over the VA coast, allowing a warm front to lift north Wednesday night. Mostly sunny skies will be replaced by upper to mid level clouds as a strong cold front approaches. Models show a weak CAPE, strong shear environment characterize the state of the atmosphere Thursday. The cold front will bring showers and isolated thunderstorms Wednesday night and Thursday. Used a blend of models for temperature through the period. && .LONG TERM /FRIDAY THROUGH MONDAY/... As of 325 AM Tuesday... Descent cold air advection behind Thursday`s cold front could produce some lingering light precipitation or drizzle into Friday. Another front arrives on Saturday, with limited moisture and abundant deep layered shear and low CAPE. Light rain or drizzle will linger into Sunday. Used a blend of models for temperatures and PoPs through the period. && .AVIATION /10Z TUESDAY THROUGH SATURDAY/...
-- Changed Discussion --
As of 610 AM Tuesday... High pressure will make for VFR conditions today with mostly sunny conditions. Any river valley fog out there this morning should burn off shortly after sunrise, but only a chance for brief MVFR conditions at CRW due to its close vicinity to the Elk River. However, I didn`t have enough confidence to include with the 12Z TAF issuance as their visibility has yet to fall below 6SM this morning. Tonight there could be some valley fog again, generally between 06Z and 12Z, but not nearly enough confidence to encode in the TAFs just yet. FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 12Z WEDNESDAY... FORECAST CONFIDENCE: High ALTERNATE SCENARIOS: May see brief MVF conditions this morning around sunrise at CRW. IFR valley fog may be a possibility tonight. 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. UTC 1HRLY 10 11 12 13 14 15 16 17 18 19 20 21 EDT 1HRLY 06 07 08 09 10 11 12 13 14 15 16 17 CRW CONSISTENCY H M M M H H H H H H M M HTS CONSISTENCY H H H H H H H H H H M M BKW CONSISTENCY H H H H H H H H H H M M EKN CONSISTENCY H M M M H H H H H H M M PKB CONSISTENCY H M M M H H H H H H M M CKB CONSISTENCY H H H H H H H H H H M M AFTER 12Z WEDNESDAY... IFR in valley fog possible Wednesday morning. Brief IFR possible in showers Thursday.
-- End Changed Discussion --
&& .RLX WATCHES/WARNINGS/ADVISORIES... WV...Frost Advisory until 9 AM EDT this morning for WVZ008>011- 016>020-027>029. OH...Frost Advisory until 9 AM EDT this morning for OHZ066-067-075- 076-084-085. KY...None. VA...None. && $$ SYNOPSIS...ARJ/MPK NEAR TERM...MPK SHORT TERM...RPY LONG TERM...RPY AVIATION...MPK is the U.S. government's official web portal to all federal, state and local government web resources and services.