A surface cold front and upper level trough of low pressure moved into the mid and upper Ohio River Valley during the afternoon of the 19th. A couple of the storms had gusty outflow winds, which produced minor tree damage.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS RLX wrote it up.
A surface cold front and upper level trough of low pressure moved into the mid and upper Ohio River Valley during the afternoon of the 19th. A couple of the storms had gusty outflow winds, which produced minor tree damage.
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 19, 4:51 PM EST, 1 hour 28 minutes earlier.
Area Forecast Discussion National Weather Service Charleston WV 551 PM EDT Sat Aug 19 2017 .SYNOPSIS... An upper trough brings showers and storms to northern areas through this evening. High pressure Sunday through Tuesday. Strong cold front mid week. Cooler and drier for the end of the week. && .NEAR TERM /UNTIL 10 PM THIS EVENING/... As of 550 PM Saturday... Updated forecast to better handle convection over central OH and northern WV. As of 300 PM Saturday... Surface cold front and upper trough will pass just to our north this afternoon and evening. Currently along the front showers and thunderstorms have been kicking off across Northeast Ohio and pushing into Western PA. Forecast soundings indicate drier air in the midlevels across our Ohio Counties and Northern WV and this will likely damper the convection in our area. However, we are on the fringe of the better moisture and as the trough pushes eastward this afternoon we will see an increase in lapse rates to above 7C/Km and moisture may sag far enough south. Although the strongest storms will be just off to our north, there will be some potential for storms to reach severe limits with damaging wind gusts being the main threat. Storms will quickly dissipate this evening with the loss of heating and high pressure pushes in. Clear skies and light winds overnight will make for favorable conditions for dense valley fog to develop. Tomorrow will be dry across the entire area with seasonable temps and mostly sunny skies. && .SHORT TERM /10 PM THIS EVENING THROUGH TUESDAY/... As of 300 PM Saturday... Zonal upper level flow will hold in place for much of the period. In the lower levels, a broad Bermuda-type high enhances south-westerly flow gradually bringing in moisture and higher temperatures. Lowland highs on Monday will be in the upper-80's to near 90, even accounting for the brief lapse in solar insulation with the nearby Total Eclipse. Foggy mornings are likely with increasing moisture and weak flow overall. Isolated mountain showers are possible Monday afternoon with the passage of a small disturbance in the otherwise zonal upper level flow... the presence of moisture and forcing, albeit weak, doesn't allow for completely clear Eclipse conditions. Best viewing conditions with this forecast issuance exist in the lowlands of West Virginia and in eastern Kentucky. Tuesday, an approaching low will introduce modest height falls aloft and greater instability with growing shower and storm activity through the day. && .LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/... As of 300 PM Saturday... A strong cold front will move through the area Tuesday night through midday Wednesday. Due to its overnight timing, overall severe threat looks low for frontal passage though momentum transfer could bring stronger gusts to the surface. Showers and storms should taper off in the eastern mountains by late afternoon. Behind the front, much cooler and drier conditions will settle in with strong surface high pressure centered over the Great Lakes region. Aloft, deep northwest flow originating in Canada will keep weather generally clear with the caveat of low-predictability in subtle disturbances that may drum up isolated precipitation. Northwest flow aloft continues through the end of the forecast period. && .AVIATION /00Z SATURDAY THROUGH THURSDAY/... As of 550 PM Saturday... An upper level trough will produce some showers and thunderstorms across central Oh and northern WV this evening. Outside of any storms, expect VFR conditions. Late tonight, some river valley fog can be expected in the mountain valleys. Fog may or may not form in river valleys west of the mountains. Once any fog burns off Sunday morning, VFR conditions can be expected with a cumulus deck. FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 00Z MONDAY... FORECAST CONFIDENCE: High, except low with fog. ALTERNATE SCENARIOS: Timing, density, and location of fog late tonight 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 22 23 00 01 02 03 04 05 06 07 08 09 EDT 1HRLY 18 19 20 21 22 23 00 01 02 03 04 05 CRW CONSISTENCY H H H H H H H H M M L L HTS CONSISTENCY H H H H H H H L L L L L BKW CONSISTENCY H H H H H H H H H M L L EKN CONSISTENCY H H H H H H H M M L M M PKB CONSISTENCY H H H H H H H H M M L L CKB CONSISTENCY M M H H H H H H H M L L AFTER 00Z MONDAY... Dense river valley fog possible each morning. && .RLX WATCHES/WARNINGS/ADVISORIES... WV...None. OH...None. KY...None. VA...None. && SYNOPSIS...MPK/MC NEAR TERM...RPY/MPK SHORT TERM...MC LONG TERM...MC AVIATION...RPY
Hazardous Weather Outlook National Weather Service Charleston WV 240 AM EDT Sat Aug 19 2017 KYZ101>103-105-OHZ066-067-075-076-083>087-VAZ003-004-WVZ005>011- 013>020-024>034-039-040-515>526-200645- 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- 240 AM EDT Sat Aug 19 2017 This Hazardous Weather Outlook is for northeast Kentucky, southeast Ohio, southwest Virginia and much of West Virginia. .DAY ONE...Today and Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Sunday through Friday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
Special Weather Statement
National Weather Service Charleston WV
230 PM EDT SAT AUG 19 2017
OHZ075-084-191900-
Athens-Vinton-
230 PM EDT SAT AUG 19 2017
...A STRONG THUNDERSTORM WILL AFFECT WEST CENTRAL ATHENS AND
NORTHEASTERN VINTON COUNTIES...
At 229 PM EDT, a strong thunderstorm was located near Mcarthur,
moving east at 15 mph.
Wind gusts up to 50 mph and half inch hail are possible with this
storm.
Locations impacted include...
Lake Hope State Park, Zaleski and Creola.
This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.
If you are on or near Lake Hope State Park, get out of the water and
move indoors or inside a vehicle. Remember, lightning can strike out
to 10 miles from the parent thunderstorm. If you can hear thunder,
you are close enough to be struck by lightning. Move to safe shelter
now! Do not be caught on the water in a thunderstorm.
Persons in campgrounds should consider seeking sturdy shelter until
this storm passes.
LAT...LON 3935 8223 3926 8231 3928 8255 3933 8255
3939 8233 3939 8229 3940 8229 3940 8228
TIME...MOT...LOC 1829Z 255DEG 15KT 3931 8247
CooperPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON WV
606 PM EDT SAT AUG 19 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0555 PM HAIL NW MACKSBURG 39.63N 81.46W
08/19/2017 E0.70 INCH WASHINGTON OH PUBLIC
&&
EVENT NUMBER RLX1700625
RPYPRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON WV
617 PM EDT SAT AUG 19 2017
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0550 PM HAIL 1 NW MACKSBURG 39.64N 81.47W
08/19/2017 E1.00 INCH WASHINGTON OH PUBLIC
&&
EVENT NUMBER RLX1700626
RPYSpecial Weather Statement
National Weather Service Charleston WV
635 PM EDT SAT AUG 19 2017
WVZ031-192300-
Harrison-
635 PM EDT SAT AUG 19 2017
...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN HARRISON COUNTY...
At 635 PM EDT, a strong thunderstorm was located near Lumberport, or
9 miles southwest of Mannington, moving east at 25 mph.
Winds in excess of 40 mph and nickel size hail are possible with this
storm.
Locations impacted include...
Bridgeport, Shinnston, Lumberport and Enterprise.
LAT...LON 3942 8025 3941 8022 3934 8023 3939 8047
3943 8046
TIME...MOT...LOC 2235Z 282DEG 20KT 3940 8042
30Special Weather Statement
National Weather Service Charleston WV
642 PM EDT SAT AUG 19 2017
OHZ066-067-192345-
Morgan-Perry-
642 PM EDT SAT AUG 19 2017
...HEAVY RAINFALL WILL AFFECT EAST CENTRAL PERRY AND NORTHWESTERN
MORGAN COUNTIES...
At 640 PM EDT, radar indicated strong thunderstorms located along a
line extending from Somerset to near Perry State Forest.
Movement was east at 15 mph.
Locations impacted include...
Somerset, Perry State Forest and Crooksville.
Torrential rainfall is occurring with these storms, and may cause
localized flooding. One to two inches of rain can be expected in a
short time frame. Do not drive your vehicle through flooded
roadways.
Excessive runoff from heavy rainfall will cause elevated levels on
small creeks and streams, and ponding of water on country roads and
farmland along the banks of creeks and streams.
LAT...LON 3978 8208 3977 8208 3977 8203 3976 8199
3971 8203 3979 8230 3983 8227
TIME...MOT...LOC 2240Z 292DEG 13KT 3981 8231 3977 8214
30The Charleston,WV radar (KRLX), 131 km away, was scanning. The volume nearest the first event began at 23:19 UTC.
1 thunderstorm wind. Local standard time, as filed.
A tree limb fell onto a parked car and truck, causing minor damage to both.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in West Virginia in 2017Every state in 2017This day in weather historyWarnings in West Virginia, August 2017
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: 711453.