Area Forecast Discussion
Issued by NWS Charleston, WV
Issued by NWS Charleston, WV
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594 FXUS61 KRLX 121802 AFDRLX AREA FORECAST DISCUSSION National Weather Service Charleston WV 202 PM EDT Sun May 12 2024 .SYNOPSIS... High pressure provides dry weather into the start of the new work week amid a warming trend. Wet weather returns Monday night lasting into Wednesday. && .NEAR TERM /THROUGH MONDAY/... As of 147 PM Sunday... A dry and chilly night is on tap as a surface high pressure remains in control under mostly clear skies. Winds will become calm overnight allowing for radiational cooling to drop temperatures few degrees, slightly below normal at our common cold spots into Monday morning. Dry conditions will persist for the most part on Monday as the high pressure shifts east, and the area becomes under deep northwest flow. Warm air advection will promote warm afternoon temperatures, generally in the lower 80s across the lowlands, ranging into the mid 60s higher elevations. A southern stream shortwave energy, riding along an upper level ridge, will bring an increase in clouds and low chances for precipitation Monday afternoon and evening, ahead of an approaching low pressure system. && .SHORT TERM /MONDAY NIGHT THROUGH WEDNESDAY NIGHT/... As of 200 PM Sunday... Active weather returns in the short term period as an upper low in the southern stream moves east towards the Ohio Valley region Monday night, eventually opening into a wave as it crosses our area on Wednesday. Showers and isolated thunderstorms are expected across the ares as it does so, with isolated water issues a possibility, owing to saturated air and light flow. If localized water issues do occur, Wednesday looks to be the better day for this owing to break in precipitation in days before, and ground will need time to saturate from repetitive slow moving storms/showers. Severe storms are not anticipated during the period due to overall weak dynamics. && .LONG TERM /THURSDAY THROUGH SATURDAY/... As of 1155 AM Sunday... Drier conditions take hold for Thursday as high pressure surface and aloft briefly builds in. There could be an isolated shower or even storm however, from any lingering moisture behind departing system and diurnal heating. Otherwise, another low will approach the area for Friday into the weekend, with additional rounds of showers and storms. This period also looks to be a period that will need to be watched for localized water issues, with model soundings suggesting deeply saturated profiles with tall skinny cape, however, it appears as though this feature will not linger long, with drier weather taking hold for Sunday, therefore have low confidence this far out in terms of impacts. && .AVIATION /18Z SUNDAY THROUGH FRIDAY/... As of 147 PM Sunday... Widespread VFR conditions will prevail through the end of period. High pressure remains in control with dry weather and mostly sunny skies this afternoon. Differential heating sources will produce gusty winds up to 20 knots through sunset. Winds will become light and variable or even calm overnight tonight. The clear skies and calm flow will allow shallow fog to develop mainly along the river valleys. Do not expect areas of dense fog to affect any terminals at this point. FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 18Z MONDAY... FORECAST CONFIDENCE: High ALTERNATE SCENARIOS: None anticipated at this time. 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 18 19 20 21 22 23 00 01 02 03 04 05 EDT 1HRLY 14 15 16 17 18 19 20 21 22 23 00 01 CRW CONSISTENCY H H H H H H H H H H H H HTS CONSISTENCY H H H H H H H H H H H H BKW CONSISTENCY H H H H H H H H H H H H EKN CONSISTENCY H H H H H H H H H H H H PKB CONSISTENCY H H H H H H H H H H H H CKB CONSISTENCY H H H H H H H H H H H H AFTER 18Z MONDAY... Areas of IFR visibility or ceilings are possible in rain Tuesday afternoon and night. && .RLX WATCHES/WARNINGS/ADVISORIES... WV...None. OH...None. KY...None. VA...None. && $$ SYNOPSIS...ARJ/SL NEAR TERM...ARJ SHORT TERM...SL LONG TERM...SL AVIATION...ARJ