Scattered showers and storms associated with a cold front passed through West Virginia the evening of the 9th and produced flooding issues in southeastern Harrison County.
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The episode as NWS RLX wrote it up.
Scattered showers and storms associated with a cold front passed through West Virginia the evening of the 9th and produced flooding issues in southeastern Harrison County.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Charleston, WV wrote its last area forecast discussion before the first event at Aug 10, 6:47 PM EST, 2 hours 33 minutes earlier.
Area Forecast Discussion National Weather Service Charleston WV 747 PM EDT Fri Aug 10 2018 .SYNOPSIS... Mid level disturbance may lead to a few showers and storms today and tonight. A deep closed low pressure system approaches from the north Saturday and Sunday. && .NEAR TERM /THROUGH SATURDAY/... As of 740 PM Friday... Increased PoP based on latest radar trends. Much drier air in the mid level further south of current convection, so not expecting it to push too much further southward. As of 230 PM Friday... Two upper level shortwaves, one across the north producing showers and storms, the second one across the KY/WV border producing stratiform pcpn with no thunder. These conditions will increase in intensity and coverage this afternoon and evening, and begin to decay later tonight. Therefore, it should be relatively dry tonight, with additional convection firing up Saturday. Despite of increasing low level moisture, and weak BL winds, expect plenty of clouds tonight, that could prevent dense fog formation, except at EKN, CRW, and areas with antecedent rainfall. && .SHORT TERM /SATURDAY NIGHT THROUGH MONDAY NIGHT/... As of 210 PM Friday... Unsettled weather continues across the region on Sunday as upper trough/low develops across the region. Rounds of showers and thunderstorms, some heavy at times are possible, particularly across eastern WV zones. The low will continue to linger across the area for the remainder of the short term period, with rounds of showers and thunderstorms, particularly during daytime heating hours, and daytime temperatures near to or slightly below normal for this time of year. Went with a blend between the bias corrected SREF and NBM for temperatures through the period. Basically, couple degrees warmer than normal tonight per cloudiness expected, and near normal for highs on Saturday afternoon. && .LONG TERM /TUESDAY THROUGH FRIDAY/... As of 210 PM Friday... Upper low will get kicked off to the east by mid week as an upper shortwave trough approaches from the west. Brief ridging late Tuesday through Wednesday is expected to provide a brief dry and warmer spell, but active weather returns once again towards the end of the work week as aforementioned shortwave moves into the area. && .AVIATION /00Z SATURDAY THROUGH WEDNESDAY/... As of 745 PM Friday... Showers and storms across the north will dissipate withing the next couple hours. After that, fog development will be possible in the valleys, but this may depend on the extent of the cloud cover overnight. Any fog that does develop will dissipate by around 13Z tomorrow morning, with mostly VFR conditions expected through the remainder of the day. FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 00Z SUNDAY... FORECAST CONFIDENCE: Medium. ALTERNATE SCENARIOS: Fog coverage and timing may differ than current 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 08/11/18 UTC 1HRLY 00 01 02 03 04 05 06 07 08 09 10 11 EDT 1HRLY 20 21 22 23 00 01 02 03 04 05 06 07 CRW CONSISTENCY H H H H H H L M M M M M HTS CONSISTENCY H H H H M H H L L L L L BKW CONSISTENCY H H H H M M M L L L L L EKN CONSISTENCY H H H M H H L M M M M M PKB CONSISTENCY H H H H H H H M M L L L CKB CONSISTENCY H H H H H H H H M M M M AFTER 00Z SUNDAY... IFR possible in scattered storms this weekend. && .RLX WATCHES/WARNINGS/ADVISORIES... WV...None. OH...None. KY...None. VA...None. && SYNOPSIS...ARJ/SL NEAR TERM...ARJ/MPK SHORT TERM...SL LONG TERM...SL AVIATION...MPK
Hazardous Weather Outlook National Weather Service Charleston WV 420 AM EDT Fri Aug 10 2018 KYZ101>103-105-OHZ066-067-075-076-083>087-VAZ003-004-WVZ005>011- 013>020-024>034-039-040-515>526-110830- Greenup-Carter-Boyd-Lawrence KY-Perry-Morgan-Athens-Washington- Jackson OH-Vinton-Meigs-Gallia-Lawrence OH-Dickenson-Buchanan-Wayne- Cabell-Mason-Jackson WV-Wood-Pleasants-Tyler-Lincoln-Putnam-Kanawha- Roane-Wirt-Calhoun-Ritchie-Doddridge-Mingo-Logan-Boone-Clay-Braxton- Gilmer-Lewis-Harrison-Taylor-McDowell-Wyoming-Upshur-Barbour- Northwest Raleigh-Southeast Raleigh-Northwest Fayette- Southeast Fayette-Northwest Nicholas-Southeast Nicholas- Northwest Webster-Southeast Webster-Northwest Pocahontas- Southeast Pocahontas-Northwest Randolph-Southeast Randolph- 420 AM EDT Fri Aug 10 2018 This Hazardous Weather Outlook is for northeast Kentucky, southeast Ohio, southwest Virginia and much of West Virginia. .DAY ONE...Today and Tonight. The probability for widespread hazardous weather is low. Chances of showers and thunderstorms will exist today and tonight. While the probability of widespread hazardous weather is low, a few storms may briefly produce moderate to heavy rainfall. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. The probability for widespread hazardous weather is low. Near daily chances of showers and thunderstorms will exist. While the probability of widespread hazardous weather will still remain low, a few storms may briefly produce moderate to heavy rainfall at times. .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.
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON WV
524 PM EDT FRI AUG 10 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0445 PM TSTM WND DMG SOMERSET 39.81N 82.30W
08/10/2018 PERRY OH 911 CALL CENTER
TREES REPORTED DOWN EAST AND WEST OF SOMERSET ALONG US
22.
&&
EVENT NUMBER RLX1800270
RGThe Pittsburgh radar (KPBZ), 147 km away, was scanning. The volume nearest the first event began at 02:19 UTC.
1 flash flood. Local standard time, as filed.
Extensive rainfall caused Brushy Fork to rise out of its banks and flood portions of Brushy Fork Road.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in West Virginia in 2018Every state in 2018This day in weather historyWarnings in West Virginia, August 2018
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 767257.