Limited development of pulse severe thunderstorms across Northeast Tennessee.
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.
Limited development of pulse severe thunderstorms across Northeast Tennessee.
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 Jul 30, 2:04 PM EST, 2 hours 6 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 304 PM EDT MON JUL 30 2007 .SHORT TERM...(TONIGHT THROUGH WEDNESDAY)......WEAK SHORTWAVE ROTATING SOUTHEAST ACROSS THE SOUTHERN APPALACHIANS...OROGRAPHICS AND MORE THAN SUFFICIENT INSTABILITY GENERATING SCATTERED SHOWERS AND THUNDERSTORMS ACROSS THE FORECAST AREA THIS AFTERNOON. HELD SOME SLIGHT CHANCE PROBABILITIES INTO THE EVENING FOR LEFTOVER CONVECTION EARLY IN THE FIRST PERIOD. MODELS TRY TO BRING IN HIGHER PRESSURE DURING THE NEXT COUPLE DAYS WITH A VERY GRADUAL DROP IN MEAN RH. MODELS HAVENT BEEN DOING THE BEST WITH CONVECTION DURING SEVERAL SHIFTS I HAVE WORKED THIS SUMMER WITH RATHER POOR UNDERFORECASTING DEFICIENCIES. MODEL INSTABILITY PROGGED TO BE SUFFICIENT FOR AT LEAST SLIGHT CHANCE POPS FOR CONVECTIVE DEVELOPMENT ON BOTH TUESDAY AND WEDNESDAY. COULD CARRY THIS AREA WIDE BUT THIS COULD LEAD TO OVERFORECASTING COVERAGE AND WILL JUST KEEP CONVECTION IN THE MAJOR TERRAIN AREAS DUE TO ADDITIONAL HELP FROM OROGRAPHIC LIFT. CONCERNING TEMP FORECAST STAYED FAIRLY CLOSE TO THE GUIDANCE BLEND. HOWEVER...EDGED A LITTLE HIGHER ON MINIMUMS NIGHT PERIODS AND A LITTLE LOWER DAYTIME PERIODS DUE TO MOISTURE BOTH IN THE GROUND AND LINGERING IN THE LOWER ATMOSPHERE IN THE GASEOUS STATE. .LONG TERM...(WEDNESDAY NIGHT THRU MONDAY)...THE UPPER TROF WHICH IMPACTED THE AREA MUCH OF NEXT WEEK IS FINALLY WEAKENING AND MOVING OFF TO THE EAST AND HIGH PRESSURE IS BUILDING BACK IN FROM THE WEST. THIS WILL BRING A DRIER AND WARMER AIRMASS OVER THE FORECAST AREA. SOME SHOWER ACTIVITY BEGINNING MAINLY IN THE HIGHER ELEVATIONS THEN SLOWLY SPREADING INTO SOUTHEAST TENNESSEE AND BY THE WEEKEND ACROSS THE REMAINDER OF THE FORECAST AREA AS THE STANDARD AFTERNOON AND EVENING CONVECTION. && .PRELIMINARY POINT TEMPS/POPS... CHATTANOOGA AIRPORT, TN 91 72 91 70 92 / 40 20 10 0 10 KNOXVILLE MCGHEE TYSON AIRPORT, TN 88 70 90 68 91 / 40 20 10 0 10 OAK RIDGE, TN 88 70 90 69 92 / 40 20 10 10 10 TRI CITIES AIRPORT, TN 85 67 86 63 89 / 40 20 10 0 10 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && HW
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MORRISTOWN TN 500 AM EDT MON JUL 30 2007 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-005- 006-008-311000- ANDERSON-BLEDSOE-BLOUNT SMOKY MTN-BRADLEY-CAMPBELL-CHEROKEE- CLAIBORNE-CLAY-COCKE SMOKY MTN-EAST POLK-GRAINGER-HAMBLEN-HAMILTON- HANCOCK-HAWKINS-JEFFERSON-JOHNSON-KNOX-LEE-LOUDON-MARION-MCMINN- MEIGS-MORGAN-NORTH SEVIER-NORTHWEST CARTER-NORTHWEST COCKE- NORTHWEST GREENE-NORTHWEST MONROE-NW BLOUNT-RHEA-ROANE-RUSSELL- SCOTT TN-SCOTT VA-SEQUATCHIE-SEVIER SMOKY MTN-SOUTHEAST CARTER- SOUTHEAST GREENE-SOUTHEAST MONROE-SULLIVAN-UNICOI-UNION- WASHINGTON TN-WASHINGTON VA-WEST POLK-WISE- 500 AM EDT (400 AM CDT) MON JUL 30 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EAST TENNESSEE...SOUTHWEST VIRGINIA AND EXTREME SOUTHWEST NORTH CAROLINA. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED. DMG
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 419 PM EDT MON JUL 30 2007 TNZ086-087-302115- NORTHWEST MONROE-SOUTHEAST MONROE- 419 PM EDT MON JUL 30 2007 ...A STRONG THUNDERSTORM WAS AFFECTING MONROE COUNTY... AT 415 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 12 MILES NORTHWEST OF TAPOCO...MOVING SOUTH AT 10 MPH. SMALL HAIL...AND WINDS GUSTS UP OF 30 TO 40 MPH ARE POSSIBLE WITH THIS STORM. IN ADDITION TO SMALL HAIL AND GUSTY WINDS...FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES PRIMARY KILLERS. REMEMBER... IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 428 PM EDT MON JUL 30 2007 TNZ017-302115- SULLIVAN- 428 PM EDT MON JUL 30 2007 ...A STRONG THUNDERSTORM WAS AFFECTING SULLIVAN COUNTY... AT 421 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR BRISTOL TN...MOVING SOUTHWEST AT 10 MPH. SMALL HAIL...AND WIND GUSTS UP TO 30 TO 40 MPH ARE EXPECTED WITH THIS STORM. IN ADDITION TO SMALL HAIL AND GUSTY WINDS...FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES PRIMARY KILLERS. REMEMBER... IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 439 PM EDT MON JUL 30 2007 TNZ044-302145- WASHINGTON- 439 PM EDT MON JUL 30 2007 ...A STRONG THUNDERSTORM WAS AFFECTING WASHINGTON COUNTY... AT 438 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR GRAY...MOVING SOUTHWEST AT 10 MPH. SMALL HAIL...AND WIND GUSTS 30 TO 40 MPH ARE EXPECTED WITH THIS STORM. IN ADDITION TO SMALL HAIL AND GUSTY WINDS...FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES PRIMARY KILLERS. REMEMBER... IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING.
The Knoxville radar (KMRX), 94 km away, was scanning. The volume nearest the first event began at 21:07 UTC.
1 thunderstorm wind. Local standard time, as filed.
One tree was reported down in Johnson City at the intersection of Mckinley and North streets. Several trees down across the west half of the county. This was reported by the sheriff's office.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Tennessee in 2007Every state in 2007This day in weather historyWarnings in Tennessee, July 2007
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: 40366.