Regenerating morning convection anchored over eastern portions of Hamblen County and Morristown produced flash flooding.
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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 MRX wrote it up.
Regenerating morning convection anchored over eastern portions of Hamblen County and Morristown produced flash flooding.
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 Morristown, TN wrote its last area forecast discussion before the first event at Aug 26, 6:23 AM EST, 52 minutes earlier.
Area Forecast Discussion National Weather Service Morristown TN 723 AM EDT Fri Aug 26 2022 .UPDATE... FOR 12Z AVIATION. && .SHORT TERM...(Today and Tonight) Key Message: Showers and thunderstorms expected to continue today, peaking in the late afternoon hours. Discussion: Currently showers and thunderstorms continue across the central and northern portions of the eastern TN valley, mainly sparking from outflow of previous storms... And this activity should continue into the morning hours. A shortwave and weak front will try and approach the area today, which could help with more widespread forcing over the area, especially later in the afternoon and evening, leading to greater coverage of storms than the last few days. Some gusty winds and brief heavy rainfall will once again be the primary threats under the strongest of these slow moving storms. Greatest coverage will likely be along the Appalachians and Cumberland Plateau, and temperatures should be similar to what we experienced yesterday. ABM .LONG TERM...(Saturday through Thursday)... Key Messages: 1. Unsettled pattern continues with daily scattered rain chances, the best rain chances occur midweek as a cold front approaches and moves across the area. 2. Temperatures near to slightly above normal. Discussion: Ridging will be in place across our area through the weekend. Diurnal showers and storms can be expected each day with the main focus being on the high terrain areas. On Monday, high pressure begins to break down as an upper level trough swings across the Great Lakes. More diurnal showers and storms expected Monday afternoon. By Tuesday, the trough extends down into the Ohio River Valley with a cold front that extends from Texas up through Wisconsin. Ahead of this front, a weak shortwave will move into middle/east TN and provide an uptick in shower and storm coverage with Likely POPs in place for most areas. Tuesday night into Wednesday, the aforementioned cold front will move across our area providing another good chance of showers and storms. The better dynamics remain well to our north across the Ohio River Valley so not expecting any severe threat at this time. The biggest question of the forecast period is when does the front clear the area. The GFS and ECMWF suggest the front will clear the area on Wednesday with much drier air moving in by Wednesday night and Thursday. However, the NBM is still hanging on to POPs Thursday which suggests the front may not clear as fast. Will continue to lean toward the NBM for the time being. SR && .AVIATION... 12Z TAF DISCUSSION. Shortwave moving across the northern valley is helping to continue showers and the occasional thunderstorm north of KTYS and near KTRI. Expect this to continue through the morning, with decreasing lightning chances as the shortwave moves eastward. Diurnal storms will then begin in the afternoon, with a TEMPO group during the most likely period. If storms clear out overnight then the chance for fog at KTRI is very high in the morning. && .PRELIMINARY POINT TEMPS/POPS... Chattanooga Airport, TN 87 71 90 72 89 / 40 30 30 10 40 Knoxville McGhee Tyson Airport, TN 87 69 90 70 91 / 40 30 30 10 30 Oak Ridge, TN 87 68 89 70 91 / 40 20 20 0 30 Tri Cities Airport, TN 85 64 88 65 89 / 40 30 30 10 30 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. &&
Hazardous Weather Outlook National Weather Service Morristown TN 403 AM EDT Fri Aug 26 2022 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-270815- Cherokee-Clay-Scott TN-Campbell-Claiborne-Hancock-Hawkins- Sullivan-Johnson-Morgan-Anderson-Union-Grainger-Hamblen- Northwest Cocke-Cocke Smoky Mountains-Northwest Greene- Southeast Greene-Washington TN-Unicoi-Northwest Carter- Southeast Carter-Roane-Loudon-Knox-Jefferson-Northwest Blount- Blount Smoky Mountains-North Sevier-Sevier Smoky Mountains- Sequatchie-Bledsoe-Rhea-Meigs-McMinn-Northwest Monroe- Southeast Monroe-Marion-Hamilton-Bradley-West Polk-East Polk-Lee- Wise-Scott VA-Russell-Washington VA- 403 AM EDT Fri Aug 26 2022 /303 AM CDT Fri Aug 26 2022/ This Hazardous Weather Outlook is for portions of southwest North Carolina...east Tennessee and southwest Virginia. .DAY ONE...Today and Tonight Showers and thunderstorms are once again expected today, peaking in strength and coverage in the afternoon and early evening hours. These slow moving storms could result in brief heavy rainfall leading to isolated flooding, and strong winds. .DAYS TWO THROUGH SEVEN...Saturday through Thursday The probability for widespread hazardous weather is low. .SPOTTER INFORMATION STATEMENT... Spotter activation is not needed at this time.
Special Weather Statement
National Weather Service Morristown TN
440 AM EDT Fri Aug 26 2022
TNZ013-014-260930-
Claiborne TN-Campbell TN-
440 AM EDT Fri Aug 26 2022
...A strong thunderstorm will impact portions of northwestern
Claiborne and northern Campbell Counties through 530 AM EDT...
At 440 AM EDT, Doppler radar was tracking a strong thunderstorm near
Red Ash, or 12 miles north of La Follette, moving east at 15 mph.
HAZARD...Winds in excess of 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor damage to outdoor objects is
possible.
Locations impacted include...
Jellico, White Oak, Elk Valley, Indian Mountain State Park and
Clairfield.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3659 8388 3640 8395 3648 8428 3651 8427
3651 8426 3653 8426 3653 8425 3657 8425
3659 8424
TIME...MOT...LOC 0840Z 281DEG 14KT 3655 8417
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
SRThe national radar mosaic for the moment the first event began.
2 flash flood. Local standard time, as filed.
Several roads flooded and some barricaded. Flooded roadways included Slop Creek Road and Springdale Road. A bowl-shaped backyard was filled with water up to a trampoline surface. Video of stream flooding shared on social media.
Barkley Landing Drive was closed for flooding.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Tennessee in 2022Every state in 2022This day in weather historyWarnings in Tennessee, August 2022
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: 1055011, 1055012.