Severe Thunderstorm Warning 83, NWS Charleston, WV

AREA FORECAST DISCUSSION
National Weather Service Charleston WV
235 PM EDT Thu Apr 3 2025

.SYNOPSIS...
A system serves up showers and thunderstorms at times through
the weekend, with flooding increasingly likely for the Mid-Ohio
Valley region. Dry weather finally returns Monday.

&&

.NEAR TERM /THROUGH FRIDAY/...
As of 235 PM Thursday...

Key Points:

 * A stalled frontal boundary pierced through the heart of the
   forecast area will promote periods of moderate to heavy rain.

 * Renewed potential for strong to severe thunderstorms
   encroaches the southern coalfields through tonight.

After a brief lull in convective activity earlier today, a
stalled frontal boundary will serve as the catalyst for strong
to possibly severe thunderstorms shortly after this issuance and
into tonight. The 16Z surface analysis denotes the front to be
draped through parts of Ohio and down through the Tennessee
Valley. For now, this places our CWA in the warm sector of the
ongoing low pressure system and at the forefront for more severe
weather here in the next few hours.

Satellite imagery at the time of writing shows the bulk of the
Central Appalachians coated beneath cloud cover, while our
neighboring states to the south have achieved partial clearing
and cumulus development. As further clearing attempts to occur
across our coalfields, a similar trend in cumulus development
could arise and set off renewed potential for severe
thunderstorms through the course of the afternoon and evening.
If proper destabilization can take shape, coupled with strong
low to mid level flow still prevalent via the KRLX VAD Wind
Profile, all severe hazard types will remain at play with
activity today.

For the rest of the forecast period, the stalled front will
continue to wobble in and around the Ohio River Valley as
impulses of renewed moisture ride along the boundary. Where the
front sets up during periods of heavier rainfall will yield the
concerns for flash and prolonged flooding. The first wave of
higher rainfall amounts will be shuttled by the Tri-State area
and the northern outskirts of the CWA this evening into tonight.
This location has already been primed by antecedent rainfall
both yesterday and today, and could be enough to send local
creeks and streams further out of their banks. There is also
growing concern for additional counties in northeast West
Virginia that may observe slightly higher rainfall amounts than
previously anticipated between now and into the weekend.
Therefore, elected to expand the Flood Watch up the I-79
corridor through Sunday morning.

The afternoon model suite hints at a lull in precipitation on
Friday as the upper level jet noses northward. This initiates a
bit of a dry slot to occur in the southern coalfields and
portions of the lowlands by the late afternoon and evening.
Friday highs could branch into the upper 70s/low 80s for the
extreme southern portions of the forecast area, while blanketing
clouds across the north maintain peak temperatures in the
50s/60s. There still remains uncertainty regarding radar
activity on Friday, but elected to agree with neighboring
offices with placing the highest POPs across the Muskingum River
basin and northward.

&&

.SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY NIGHT/...
As of 1155 AM Thursday...

A warm front will lift north of the area Saturday morning, and much
of Saturday currently looks quiet across West Virginia and southwest
Virginia with warm, dry weather. In fact, the middle and upper 80s
can be expected across the West Virginia lowlands during the
afternoon as clouds mix with some sunshine. However, portions of
southeast Ohio and northeast Kentucky will likely see showers and
thunderstorms, especially the far northwestern tier of our coverage
area. SPC currently has a slight risk of severe storms across parts
of these areas Saturday. This threat will limited by lower amounts
of instability, but shear will remain plentiful for thunderstorm
organization (40-60 kts of 0-6 km bulk shear).

The main cold front will begin to approach Saturday night, and rain
chances will return from west to east. Rainfall could be heavy at
times overnight, especially across southeast Ohio, where WPC
currently has a slight risk of excessive rainfall forecast. In
addition, the heavy rainfall will also lead to an increased threat
of river flooding, especially along and west of the Ohio River.

Rain will track across West Virginia Sunday, with an additional 0.50-
1.00" possible across the state (heavier amounts west, lighter
amounts east). An additional 1.00-1.50" will be possible across
southeast Ohio and northeast Kentucky Sunday.

&&

.LONG TERM /MONDAY THROUGH WEDNESDAY/...
As of 1155 AM Thursday...

High pressure will finally build back into the region behind this
extended stretch of unsettled weather. Monday and Tuesday will be
much colder than normal with highs only in the upper 40s to lower
50s each day in a post-frontal airmass. Temperatures should return
to the 50s and lower 60s Wednesday with a ridge building back over
the Ohio Valley. The next chance of precipitation will be Thursday
will a potential upper-level low approaching from the west, but much
uncertainty exists at this time.

&&

.AVIATION /18Z THURSDAY THROUGH TUESDAY/...
As of 140 PM Thursday...

A stalled frontal boundary over the area will serve up rounds of
adverse weather throughout the TAF period. Light rain continues
to be shuttled in from the southwest this afternoon, with
clearing skies across parts of the Mississippi Valley that could
impose renewed potential for thunderstorms later this afternoon.
Areas south of the stalled front will have the best chance to
observe strong to severe thunderstorms through this evening,
while locations that remain masked beneath sheets of clouds will
remain as mostly rain, which could be heavy at times. The threat
for damaging wind gusts, hail, tornadoes, and localized flooding
all remain possible through tonight.

On and off rain will continue to impede on the airspace
overnight into Friday. While the severity risk will be lower
compared to today, the concern for flooding will be ongoing.
Otherwise, a tight ceiling gradient sets up shop overhead, with
TAF sites north of the front becoming plagued by IFR or worse
cloud bases for the rest of the forecast period, and locations
south of the boundary branching out to VFR for parts of the day
on Friday.

A weakening low level jet aloft will yield lessening surface
gusts beginning this evening. This will then advertise light and
variable winds tonight and Friday, with the exception of BKW
who may observe breezy southwesterly winds in the afternoon.

FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 18Z FRIDAY...

FORECAST CONFIDENCE: Medium.

ALTERNATE SCENARIOS: Timing and intensity of restrictions with
showers and thunderstorms could vary. The location of the front
stalling could vary.

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    M    H    H    M    H    M    H    M
HTS CONSISTENCY  H    H    H    H    H    H    H    H    M    M    M    M
BKW CONSISTENCY  H    H    H    H    H    H    H    H    H    H    H    H
EKN CONSISTENCY  H    H    H    H    H    H    M    M    M    H    H    H
PKB CONSISTENCY  H    H    H    H    H    H    H    H    M    H    M    M
CKB CONSISTENCY  H    H    H    H    H    H    H    H    H    H    M    H

AFTER 18Z FRIDAY...
IFR conditions possible in showers and thunderstorms Friday
night through Sunday.

&&

.RLX WATCHES/WARNINGS/ADVISORIES...
WV...Flood Watch through Sunday morning for WVZ005>011-013>020-
     027>032-039-040.
OH...Flood Watch through Sunday morning for OHZ066-067-075-076-
     083>087.
KY...Flood Watch through Sunday morning for KYZ101>103-105.
VA...None.

&&

SYNOPSIS...MEK/JMC
NEAR TERM...MEK
SHORT TERM...JMC
LONG TERM...JMC
AVIATION...MEK

Hazardous Weather Outlook
National Weather Service Charleston WV
216 PM EDT Thu Apr 3 2025

VAZ003-004-WVZ024>026-033-034-515>526-041830-
Dickenson-Buchanan-Mingo-Logan-Boone-McDowell-Wyoming-
Northwest Raleigh-Southeast Raleigh-Northwest Fayette-
Southeast Fayette-Northwest Nicholas-Southeast Nicholas-
Northwest Webster-Southeast Webster-Northwest Pocahontas-
Southeast Pocahontas-Northwest Randolph-Southeast Randolph-
216 PM EDT Thu Apr 3 2025

This Hazardous Weather Outlook is for southwest Virginia, and
portions of northeast, southeast and southern West Virginia.

.DAY ONE...This Afternoon and Tonight.

Showers and thunderstorms are possible today and tonight, some of
which could be strong to severe.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Multiple rounds of showers and thunderstorms Friday through Sunday
may lead to minor flooding issues.

Strong to severe thunderstorms are possible again Friday and
Saturday.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions by calling the toll-free spotter hotline, or by other
methods detailed at www.weather.gov/rlx/reports.

KYZ101>103-105-OHZ066-067-075-076-083>087-WVZ005>011-013>020-027>032-
039-040-041830-
Greenup-Carter-Boyd-Lawrence-Perry-Morgan-Athens-Washington-
Jackson OH-Vinton-Meigs-Gallia-Lawrence OH-Wayne-Cabell-Mason-
Jackson WV-Wood-Pleasants-Tyler-Lincoln-Putnam-Kanawha-Roane-Wirt-
Calhoun-Ritchie-Doddridge-Clay-Braxton-Gilmer-Lewis-Harrison-Taylor-
Upshur-Barbour-
216 PM EDT Thu Apr 3 2025

...FLOOD WATCH REMAINS IN EFFECT THROUGH SUNDAY MORNING...

This Hazardous Weather Outlook is for northeast Kentucky, southeast
Ohio, and portions of central, northern, southern and western West
Virginia.

.DAY ONE...This Afternoon and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flood Watch.

In addition, showers and thunderstorms are possible today and
tonight, some of which could be strong to severe.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flood Watch.

Multiple rounds of showers and thunderstorms Friday through Sunday
may lead to minor flooding issues.

Strong to severe thunderstorms are possible again Friday and
Saturday.

.SPOTTER INFORMATION STATEMENT...

Weather spotters are encouraged to report significant weather
conditions by calling the toll-free spotter hotline, or by other
methods detailed at www.weather.gov/rlx/reports.

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