Hail, Unicoi
- When
- June 2, 4:27 PM EST
- Where
- Unicoi County, 1.31 mi ESE of Marbleton
- Measured
- 0.75 in hail
- Reported by
- Law Enforcement
- Coordinates
- 36.220, -82.310
Law enforcement personnel reported penny-size hail fell on Marbleton Road near Unicoi.
Hail and Damaging Wind in Tennessee, June 2, 2009
A boundary across east Tennessee triggered isolated severe thunderstorms during the late afternoon hours. Storm reports contained both large hail and thunderstorm wind damage.
Where it happened
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- $2,000
- Crop damage
- None recorded
- Events
- 2
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.
What happened
The episode as NWS MRX wrote it up.
A boundary across east Tennessee triggered isolated severe thunderstorms during the late afternoon hours. Storm reports contained both large hail and thunderstorm wind damage.
What forecasters said that day
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 Jun 2, 2:35 PM EST, 1 hour 52 minutes earlier.
Area forecast discussion, Jun 2, 2:35 PM EST, 1 hour 52 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 335 PM EDT TUE JUN 2 2009 .SHORT TERM (TONIGHT AND WEDNESDAY)...UPPER RIDGE OVER AREA NOW... BUT IN THE NEXT 24 HOURS THE RIDGE FLATTENS OUT WITH A MID-LEVEL FLOW THAT HAS MUCH MORE OF A WESTERLY COMPONENT FOR WEDNESDAY. ACROSS THE NORTHERN PARTS OF THE AREA...MID-LEVEL WIND SPEEDS WILL BE PICKING UP AS WELL. WHAT THIS MEANS FOR WEDNESDAY IS THAT CONVECTION THAT DEVELOPS OVER THE PLATEAU WILL HAVE A MUCH BETTER CHANCE OF ADVECTING EASTWARD OVER THE VALLEY LOCATIONS. LOCATIONS IN THE UPPER TENN VALLEY ARE GENERALLY STAYING OUT OF THE PATH OF STORMS TODAY...AS THE SSW MID-LEVEL FLOW IS TRAINING THE CONVECTION PARALLEL TO THE ORIENTATION OF THE HIGHER TERRAIN. WITH INCREASING MID-LEVEL FLOW WEDNESDAY...STORMS SHOULD BE SLIGHTLY ORGANIZED AND INDIVIDUAL CELLS WILL HAVE A LONGER LIFE...SO WOULD EXPECT GREATER THAN OR EQUAL TO STORM INTENSITY FOR WEDNESDAY IN COMPARISON TO TODAY. BETTER CHANCES FOR SEVERE STORM...ROUGHLY OVER THE NORTHWESTERN HALF OF THE CWA. GUIDANCE TEMPS LOOK GOOD OVERALL. .LONG TERM (WEDNESDAY NIGHT THROUGH TUESDAY)...MODELS ARE IN GOOD AGREEMENT THAT A COLD FRONT WILL SLOWLY MOVE INTO THE FORECAST AREA ON WEDNESDAY NIGHT...WITH SCATTERED CONVECTION EXPECTED ALONG AND AHEAD OF IT. A MODERATELY UNSTABLE AIR MASS IS PROGGED TO DEVELOP ACROSS THE FORECAST AREA ON THURSDAY...RESULTING IN A BETTER COVERAGE OF CONVECTION AND THE POSSIBILITY OF SEVERE STORMS. AN UPPER-LEVEL TROUGH IS PROGGED TO DEEPEN OVER THE TN RIVER VALLEY ON THURSDAY...WHICH WILL CREATE A SURFACE AREA OF LOW PRESSURE OVER THE SOUTHEAST. THIS SURFACE LOW SHOULD SLOWLY MOVE ACROSS THE CAROLINAS THURSDAY NIGHT INTO FRIDAY...SPREADING SOME MOISTURE ACROSS THE FORECAST AREA INTO FRIDAY NIGHT. MODELS INDICATE THAT THE LOCAL AIR MASS WILL BECOME FAIRLY STABLE BY FRIDAY BEHIND THE COLD FRONT...SO WILL MENTION MAINLY SHOWERS WITH LITTLE OR NO THUNDER ON FRIDAY. A HOT AND HUMID AIR MASS THEN RETURNS FOR THE WEEKEND INTO EARLY NEXT WEEK...WITH ISOLATED DIURNAL CONVECTION POSSIBLE EACH DAY...MAINLY AROUND THE HIGHER ELEVATIONS. AS FOR TEMPS...WILL TREND CLOSE TO THE GFS GUIDANCE NUMBERS THROUGHOUT THE ENTIRE EXTENDED PERIOD. && .PRELIMINARY POINT TEMPS/POPS... CHATTANOOGA AIRPORT, TN 65 89 65 81 65 / 10 20 40 70 60 KNOXVILLE AIRPORT, TN 64 86 64 79 64 / 10 20 40 70 60 OAK RIDGE, TN 64 88 64 79 64 / 10 30 40 70 60 TRI CITIES AIRPORT, TN 59 84 61 77 61 / 10 40 40 70 60 && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && GM/DMG
Hazardous weather outlook, Jun 2, 2:20 AM EST, 14 hours 7 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MORRISTOWN TN 320 AM EDT TUE JUN 2 2009 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-030900- 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- 320 AM EDT TUE JUN 2 2009 /220 AM CDT TUE JUN 2 2009/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST NORTH CAROLINA...EAST TENNESSEE AND SOUTHWEST VIRGINIA. .DAY ONE...TODAY AND TONIGHT ISOLATED THUNDERSTORMS WILL BE POSSIBLE THIS AFTERNOON AND EVENING...ESPECIALLY OVER THE HIGHER ELEVATION AREAS. A FEW OF THESE MAY BECOME SEVERE...WITH THE POSSIBILITY OF DAMAGING WINDS AND LARGE HAIL. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED THIS AFTERNOON OR EVENING.
In the hours before
Special weather statement, Jun 2, 1:35 PM EST, 2 hours 52 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 235 PM EDT TUE JUN 2 2009 TNZ040-041-073-074-021930- COCKE SMOKY MOUNTAINS-NORTH SEVIER-NORTHWEST COCKE-SEVIER SMOKY MOUNTAINS- 235 PM EDT TUE JUN 2 2009 ...A STRONG THUNDERSTORM WILL BE AFFECTING COCKE AND SEVIER COUNTIES... AT 233 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR GATLINBURG...MOVING NORTH AT 5 MPH. PEA SIZE HAIL...AND WINDS 30 TO 40 MPH ARE EXPECTED WITH THIS STORM. IN ADDITION TO SMALL HAIL AND GUSTY WINDS...CONTINUOUS 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. LOCALLY HEAVY RAINS...IN EXCESS OF ONE INCH PER HOUR...MAY OCCUR WITH THIS THUNDERSTORM. MOTORISTS SHOULD BE ALERT FOR PONDING OF WATER ON ROADWAYS...AND POSSIBLE MINOR FLOODING OF LOW LYING AREAS. DO NOT DRIVE THROUGH WATERS OF UNKNOWN DEPTH. TURN AROUND DONT DROWN DH
Special weather statement, Jun 2, 1:41 PM EST, 2 hours 46 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MORRISTOWN TN 241 PM EDT TUE JUN 2 2009 TNZ012-013-021945- CAMPBELL-SCOTT- 241 PM EDT TUE JUN 2 2009 ...A STRONG THUNDERSTORM WILL BE AFFECTING CAMPBELL AND SCOTT COUNTIES... AT 241 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 6 MILES NORTHWEST OF ONEIDA...MOVING EAST AT 5 MPH. PEA SIZE HAIL...AND WINDS 30 TO 40 MPH ARE EXPECTED WITH THIS STORM. IN ADDITION TO SMALL HAIL AND GUSTY WINDS...CONTINUOUS 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. LOCALLY HEAVY RAINS...IN EXCESS OF ONE INCH PER HOUR...MAY OCCUR WITH THIS THUNDERSTORM. MOTORISTS SHOULD BE ALERT FOR PONDING OF WATER ON ROADWAYS...AND POSSIBLE MINOR FLOODING OF LOW LYING AREAS. DO NOT DRIVE THROUGH WATERS OF UNKNOWN DEPTH. TURN AROUND DONT DROWN DH
The radar
The Knoxville radar (KMRX), 98 km away, was scanning. The volume nearest the first event began at 21:24 UTC.
Event by event
1 hail, 1 thunderstorm wind. Local standard time, as filed.
Thunderstorm Wind, Sullivan
- When
- June 2, 4:48 PM EST to 4:50 PM EST
- Where
- Sullivan County, 1.67 mi W of Piney Flats
- Measured
- 50 kt (58 mph) estimated gust
- Property damage
- $2,000
- Reported by
- Law Enforcement
- Coordinates
- 36.420, -82.330
Law enforcement reported one tree was downed by thunderstorm winds on Hemlock Road near Bluff City.
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornado and Hail in Texas, June 2, 2009
- Flash Flooding and Hail in Indiana, June 2, 2009
- Tornado and Flash Flood in Ohio, June 2 to 3, 2009
- Hail and Damaging Winds in Ohio, June 2, 2009
- Hail and Damaging Wind in Delaware, June 2, 2009
- Lightning Strike in Maryland, June 2, 2009
- Hail and Damaging Winds in Illinois, June 2, 2009
- Hail in Indiana, June 2, 2009
- Hail and Damaging Winds in Kentucky, June 2, 2009
- Tornado and Hail in Texas, June 2, 2009
- Dust Devil in Nevada, June 2, 2009
- Flash Flood and Hail in West Virginia, June 2, 2009
More
Every storm in Tennessee in 2009Every state in 2009This day in weather historyWarnings in Tennessee, June 2009
Sources
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: 172484, 172489.