A boundary across the area produced isolated flooding reports from slow moving thunderstorms during the afternoon hours.
Every event with a place to put it. Tap one for its entry below.
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.
A boundary across the area produced isolated flooding reports from slow moving thunderstorms during the afternoon hours.
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 19, 12:59 PM EST, 1 hour 16 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 159 PM EDT THU AUG 19 2010 .AVIATION...SHORT WAVE TROF WILL SHIFT SLOWLY EAST OF THE SOUTHERN APPALACHIANS IN THE FIRST TWELVE HOURS OF THE FORECAST PERIOD. KEPT SOME LIGHT TO MODERATE SHOWERS WITH SOME MVFR CEILING AND VISIBILITY RESTRICTIONS AT TRI FOR THE FIRST THREE HOURS WITH SOME LIGHT RAIN UNTIL 00Z FRIDAY HERE AS THE WAVE ONLY SLOWLY EXITS. A COUPLE LIGHT SPRINKLES MAY OCCUR AROUND TYS AS WELL WITH POSSIBILITY OF MVFR CEILINGS EARLY. DRIER AIR WILL EVENTUALLY BUILD INTO SOUTHEAST TENNESSEE LATER THIS AFTERNOON AND PROGRESS EAST ALLOWING FOR CLEARING AT TYS AND TRI DURING THE EVENING HOURS. HOWEVER...BELIEVE THE LOW LEVELS WILL BECOME SATURATED AGAIN LATE TONIGHT SO PLACE MVFR FOG AND CEILINGS AT CHA AND TYS WITH MVFR DETERIORATING INTO IFR CONDITIONS AT TRI (USED AN LIFR CEILING HERE TOWARD DAYBREAK). SHOULD BE A BETTER DAY RETURNING ON FRIDAY WITH VFR FLIGHT A POSSIBILITY AROUND 14Z OR LATER. && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MORRISTOWN TN 450 AM EDT THU AUG 19 2010 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-200900- 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-NW 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-RUSSELL-WASHINGTON- 450 AM EDT THU AUG 19 2010 /350 AM CDT THU AUG 19 2010/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST NORTH CAROLINA...EAST TENNESSEE AND SOUTHWEST VIRGINIA. .DAY ONE...TODAY AND TONIGHT SCATTERED TO NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS WILL MOVE NORTHEAST ACROSS THE AREA THIS MORNING. LOCALLY HEAVY RAINFALL WILL BE POSSIBLE...WITH SOME FLOODING IN A FEW AREAS. SINCE THERE HAS BEEN REPEATED AREAS OF HEAVY RAINFALL THAT HAS OCCURRED IN THE PAST 24 HOURS...A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF SOUTHWEST VIRGINIA...SOUTHWEST NORTH CAROLINA AND TENNESSEE COUNTIES UNTIL 11 AM THIS MORNING. RAINFALL AMOUNTS WILL RANGE FROM ONE TO TWO INCHES ACROSS THE AREA...WITH SOME ISOLATED AND LOCALIZED AMOUNTS OF THREE TO FOUR INCHES. FLOODING IS POSSIBLE IN SOME AREAS IN EAST TENNESSEE...SOUTHWEST VIRGINIA AND SOUTHWEST NORTH CAROLINA. IF YOU APPROACH A FLOODED ROAD...TURN AROUND...DON'T DROWN. DO NOT DRIVE THROUGH FLOODED ROADS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY A MOIST AIR MASS WILL RETURN TO THE SOUTHERN APPALACHIAN REGION SATURDAY...WITH SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS PRODUCING A THREAT FOR LOCALLY HEAVY RAIN. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS MORNING DUE TO THE POTENTIAL FOR FLASH FLOODING. TD
The Knoxville radar (KMRX), 98 km away, was scanning. The volume nearest the first event began at 19:17 UTC.
1 flash flood. Local standard time, as filed.
Law enforcement personnel reported numerous roads flooded countywide from slow moving thunderstorms. Six families were evacuated in the Fort Blackmore area near Big Stony Creek.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Virginia in 2010Every state in 2010This day in weather historyWarnings in Virginia, August 2010
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: 251474.