Flash Flood Warning 31, NWS Charleston, WV

887 
WGUS71 KRLX 292247
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
647 PM EDT Tue Aug 29 2023

WVC001-033-091-300045-
/O.CON.KRLX.FF.W.0031.000000T0000Z-230830T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Barbour WV-Harrison WV-Taylor WV-
647 PM EDT Tue Aug 29 2023

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 PM EDT THIS 
EVENING FOR NORTHWESTERN BARBOUR, EAST CENTRAL HARRISON AND TAYLOR 
COUNTIES...

At 647 PM EDT, Doppler radar indicated heavy rainfall across the 
warned area. Between 1 and 2 inches of rain have fallen. Additional 
rainfall amounts up to 0.5 inches are possible in the warned area. 
Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by heavy rain.

SOURCE...Radar.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Grafton, Philippi, Bridgeport, Flemington, Tygart Lake State Park, 
  Galloway, Knottsville, McGee, Moatsville, Rosemont, Meadland and 
  Thornton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

Report flooding to the National Weather Service by calling toll 
free, 800 401 9535, when you can do so safely.

&&

LAT...LON 3918 8023 3939 8020 3940 8012 3941 8011
      3939 8008 3940 8002 3942 8001 3945 7994
      3944 7989 3930 7990 3930 7989 3929 7987
      3918 8000 3917 8007

FLASH FLOOD...RADAR INDICATED

$$

KH

683 
WGUS71 KRLX 300041
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
841 PM EDT Tue Aug 29 2023

WVC001-033-091-300051-
/O.EXP.KRLX.FF.W.0031.000000T0000Z-230830T0045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Barbour WV-Harrison WV-Taylor WV-
841 PM EDT Tue Aug 29 2023

...FLASH FLOOD WARNING WILL EXPIRE AT 845 PM EDT THIS EVENING FOR 
NORTHWESTERN BARBOUR, EAST CENTRAL HARRISON AND TAYLOR COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

LAT...LON 3918 8023 3939 8020 3940 8012 3941 8011
      3939 8008 3940 8002 3942 8001 3945 7994
      3944 7989 3930 7990 3930 7989 3929 7987
      3918 8000 3917 8007

$$

KH

AREA FORECAST DISCUSSION
National Weather Service Charleston WV
202 PM EDT Tue Aug 29 2023

.SYNOPSIS...
Broad synoptic ascent aloft, an inverted surface trough and
strong moisture gradient yields unsettled weather through
tonight. High pressure brings dry weather thereafter.

&&

.NEAR TERM /THROUGH WEDNESDAY/...
As of 1227 PM Tuesday...

Frontal boundary stalled out across southern/eastern zones at the
start of this period. Along/east of this boundary, much higher PW
air in place as witnessed by satellite estimates, generally around
or slightly higher than 1.5 inches, while to the north and west of
the boundary, values quickly drop off, to around 0.75 inches or
less. The boundary, and weak waves of low pressure will interact to
produce scattered showers and storms, particularly this afternoon
and evening, aided by peak heating. Storms will be overall slow to
move once again owing to light flow, and this combined with the
already wet soils in several locations from rainfall on Monday, will
create a risk for flash flooding, particularly with FFG around or
slightly over an inch in an hour in spots. Although widespread
severe is not anticipated,  a storm with strong downdraft potential
cannot be completely ruled out during the period.

Precipitation will taper off late tonight, with areas of fog or low
stratus expected. Otherwise, Wednesday is shaping up to be a decent
day overall, as frontal boundary kicks off to our east in the
morning, along with upper trough moving through the region,
resulting in drier and cooler weather as of late.

&&

.SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY/...
As of 200 PM Tuesday...

Key Point:
* High pressure brings dry weather late this week, while Idalia
  passes by to the southeast.

The tropical system Idalia is projected to already be onshore
Wednesday night, then weaken as it gravitates up through the coastal
southeast US states. With a mid-level trough over the northeast US
and ridging nosing in from the west, Idalia is expected to pass
southeast of the CWA on Thursday and then shift off the Carolina
coast on Friday. While increased cloud cover will be possible as the
system moves by, an area of surface high pressure building in from
the northwest is expected to maintain dry conditions across the CWA
through the end of the work week.

Temperatures will be below normal on Thursday, with highs likely
remaining in the 70s in the lowlands and 60s to mid 70s along the
mountains. Temperatures then trend warmer as an upper ridge builds,
resulting in near normal highs for Friday.

Thursday night will be cool, with lows in the 40s to mid 50s. A
combination of calm, cool, and clear conditions should
facilitate the formation of river valley fog overnight into
early Friday morning.

&&

.LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/...
As of 1250 PM Tuesday...

Key Points:
* A stretch of drier weather persists this weekend through early
  next week.
* Temperatures become hot early next week.

High pressure is expected to remain in control at the surface this
weekend into early next week, while a ridge builds overhead. Models
indicate a shortwave may brush past the northern fringe of the CWA
this weekend, then upper ridging becomes centered over the region
through the first half of the new work week. This is expected to
result in a stretch of drier weather throughout the long term
forecast period.

Temperatures should be near normal at the start of the holiday
weekend. Warmer air advects into the area as the upper ridge
builds allowing temperatures to rise above normal by Labor Day
and then remain hot into the new work week.

&&

.AVIATION /18Z TUESDAY THROUGH SUNDAY/...
As of 130 PM Tuesday...

Areas of MVFR cigs continue to linger, mainly south/east of the
Ohio River. In addition, scattered showers and storms have
formed, and will continue through at least 04-06Z Wednesday,
with brief IFR/LIFR restrictions, and gusty winds. After
04-06Z, areas of IFR/LIFR and local VLIFR fog and stratus are
expected, particularly south/east of the Ohio River, lingering
through at least 13Z when a gradual return to VFR is expected.

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

FORECAST CONFIDENCE: Medium.

ALTERNATE SCENARIOS: Timing and category impacts from heavy
showers/thunderstorms may vary this afternoon/evening.
Development and restrictions associated with fog or stratus
overnight may vary from 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.

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

AFTER 18Z WEDNESDAY...
IFR possible in fog and stratus Thursday morning, and then
valley fog Friday and Saturday mornings.

&&

.RLX WATCHES/WARNINGS/ADVISORIES...
WV...Flood Watch through late tonight for WVZ015-016-018-025>032-
     039-040-515>523-525-526.
OH...None.
KY...None.
VA...None.

&&

SYNOPSIS...SL/JLB
NEAR TERM...SL
SHORT TERM...JLB
LONG TERM...JLB
AVIATION...SL

Hazardous Weather Outlook
National Weather Service Charleston WV
453 AM EDT Tue Aug 29 2023

KYZ101>103-OHZ066-067-075-076-083>087-WVZ009>011-300900-
Greenup-Carter-Boyd-Perry-Morgan-Athens-Washington-Jackson OH-Vinton-
Meigs-Gallia-Lawrence OH-Wood-Pleasants-Tyler-
453 AM EDT Tue Aug 29 2023

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

.DAY ONE...Today and Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

No hazardous weather is expected at this time.

.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.

WVZ015-016-018-025>032-039-040-515>523-525-526-300900-
Kanawha-Roane-Calhoun-Logan-Boone-Clay-Braxton-Gilmer-Lewis-Harrison-
Taylor-Upshur-Barbour-Northwest Raleigh-Southeast Raleigh-
Northwest Fayette-Southeast Fayette-Northwest Nicholas-
Southeast Nicholas-Northwest Webster-Southeast Webster-
Northwest Pocahontas-Northwest Randolph-Southeast Randolph-
453 AM EDT Tue Aug 29 2023

...FLOOD WATCH IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH LATE
TONIGHT...

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

.DAY ONE...Today 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.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Hazardous weather is not expected at this time.

.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.

KYZ105-VAZ003-004-WVZ005>008-013-014-017-019-020-024-033-034-524-
300900-
Lawrence KY-Dickenson-Buchanan-Wayne-Cabell-Mason-Jackson WV-Lincoln-
Putnam-Wirt-Ritchie-Doddridge-Mingo-McDowell-Wyoming-
Southeast Pocahontas-
453 AM EDT Tue Aug 29 2023

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

.DAY ONE...Today and Tonight.

Slow moving showers and storms producing locally heavy rain may
yield isolated high water issues today into tonight.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Hazardous weather is not expected at this time.

.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.

Special Weather Statement
National Weather Service Charleston WV
231 PM EDT Tue Aug 29 2023

WVZ525-526-291930-
Northwest Randolph-Southeast Randolph-
231 PM EDT Tue Aug 29 2023

...STREAMS NEAR BANKFULL ACROSS SOUTHWESTERN RANDOLPH COUNTY...

Locations impacted include...
Mill Creek, Dailey, and Huttonsville.

Heavy rain will cause streams to reach bankfull and could cause
ponding of water on roadways and flooding in low-lying areas.

Do not drive your vehicle into areas where the water covers the
roadway. The water depth may be too great to allow your car to cross
safely. Move to higher ground.

LAT...LON 3874 7982 3855 8006 3859 8014 3884 7991
TIME...MOT...LOC 1831Z 240DEG 49KT 3866 7999

25