Damaging Wind in Tennessee, July 10, 2004

Name: Damaging Wind in Tennessee, July 10, 2004
Start: 2004-07-10T18:40
End: 2004-07-10T18:40
Location: Tennessee

July 10, 2004 · NWS MRX · 1 event in 1 county or zone

A woman and her daughter were injured when thunderstorm winds caused a tree to fall onto their tent at Observation Knob Park near South Holston Lake.

Where it happened

Every event with a place to put it. Tap one for its entry below.

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Heat and drought
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Fire, smoke and dust
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The toll

Deaths: 0
Injuries: 2
Property damage: None recorded
Crop damage: None recorded
Events: 1

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 woman and her daughter were injured when thunderstorm winds caused a tree to fall onto their tent at Observation Knob Park near South Holston Lake.

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 Jul 10, 2:23 PM EST, 4 hours 17 minutes earlier.

Area forecast discussion, Jul 10, 2:23 PM EST, 4 hours 17 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
323 PM EDT SAT JUL 10 2004

.SHORT TERM...(TONIGHT THROUGH SUNDAY)...SCATTERED SHOWERS AND
THUNDERSTORMS DEVELOPED EARLY THIS AFTERNOON ACROSS THE SOUTHERN
PLATEAU AND SOUTHERN TENNESSEE VALLEY EVEN WITH UPPER LEVEL RIDGE
JUST TO THE SOUTH OF THE FORECAST AREA. A WEAK VORTICITY MAXIMUM
OVER MIDDLE TN AND DEEPER MOISTURE TO THE WEST MAY HAVE CAUSED THE
EARLY DEVELOPMENT ACROSS MIDDLE AND SE TN. THE THUNDERSTORMS HAVE
BEEN SLOWLY SPREADING EAST PRODUCING SOME HEAVY RAINFALL IN ISOLATED
AREAS.

THE ETA AND GFS BEGIN TO RETROGRADE THE UPPER LEVEL RIDGE WEST
TONIGHT AND SUNDAY. AT THE SAME TIME THE FLOW AROUND THE RIDGE WILL
BRING SHORTWAVES SOUTHEAST AND BRUSH THE NORTHERN SECTION OF THE
FORECAST AREA. WILL HAVE HIGHER THAN GUIDANCE CHANCES OF RAIN THIS
EVENING AS ACTIVITY ACROSS MIDDLE TN MOVES SLOWLY EAST BEFORE
DISSIPATING AFTER SUNSET AND WILL DROP RAIN CHANCES LATE THIS
EVENING WITH PATCHY FOG IN AREAS THAT HAD RAIN. WENT ABOUT 10 TO 15
PERCENT BELOW GUIDANCE FOR RAIN CHANCES SUNDAY. A LITTLE MORE CLOUD
COVER NORTH COULD EFFECT HIGHS ACROSS SOUTHWEST VIRGINIA SO KEPT
MAXES IN THE LOWER TO MID 80S.

.LONG TERM...(SUNDAY NIGHT THROUGH SATURDAY)...MODELS IN GOOD
AGREEMENT ON UNSEASONABLY STRONG TROUGH SETTING UP IN THE EAST IN
THE SECOND HALF OF THE UPCOMING WEEK.  FRONTAL PASSAGE APPEARS TO BE
WEDNESDAY MORNING FOR OUR CWA.  TEMPERATURES WILL BE WARM UNTIL
WED...ESPECIALLY TUESDAY...THEN SEVERAL DEGREES BELOW NORMAL THU
THROUGH SAT.  RAIN CHANCES ARE BEST SUNDAY NIGHT THROUGH MONDAY
NIGHT...AND THEN AGAIN WITH THE FRONTAL PASSAGE ON WEDNESDAY.  WE
SHOULD BE RAIN FREE THU THROUGH SAT.

&&

.PRELIMINARY POINT TEMPS/POPS...
CHATTANOOGA AIRPORT, TN  72  90  72  90 /  20  30  30  40
KNOXVILLE MCGHEE TYSON AIRPORT, TN  70  89  71  87 /  20  40  30  40
OAK RIDGE, TN  70  88  71  88 /  20  40  30  40
TRI CITIES AIRPORT, TN  68  86  69  84 /  30  40  40  50

&&

.MRX WATCHES/WARNINGS/ADVISORIES...
NC...NONE.
TN...NONE.
VA...NONE.

&&

TD/SP

Hazardous weather outlook, Jul 10, 4:45 AM EST, 13 hours 55 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE MORRISTOWN TN
545 AM EDT SAT JUL 10 2004

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-005-
006-008-111000-
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-
545 AM EDT (445 AM CDT) SAT JUL 10 2004

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 (SUNDAY THROUGH FRIDAY)...

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

PLEASE STAY TUNED TO NOAA WEATHER RADIO OR VISIT OUR WEBSITE AT
WWW.SRH.NOAA.GOV/MRX.

The radar

The Knoxville radar (KMRX), 129 km away, was scanning. The volume nearest the first event began at 23:42 UTC.

Open the radar archive at this moment

Event by event

1 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Sullivan

When: July 10, 6:40 PM EST
Where: Sullivan County, 2 mi ENE of Holston Vly
Measured: 45 kt (52 mph) estimated gust
Injuries: 2 direct, 0 indirect
Reported by: NEWSPAPER
Coordinates: 36.567, -82.050

What these are

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

Every storm in Tennessee in 2004 Every state in 2004 This day in weather history Warnings in Tennessee, July 2004

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: 5411182.