Thunderstorm Wind, Scott
- When
- March 31, 1:10 PM EST
- Where
- Scott County, 1.81 mi ENE of Winona
- Measured
- 50 kt (58 mph) estimated gust
- Reported by
- Department of Highways
- Coordinates
- 36.390, -84.400
A few trees were reported down in the Fairview area.
Hail and Damaging Winds in Tennessee, March 31, 2012
An upper level trough over the Ohio Valley moved southeast across the Southern Appalachians while driving a cold frontal boundary across the region. Moderate to strong instability and decent wind shear aided the development of severe convection during the afternoon and early evening.
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
- None recorded
- Crop damage
- None recorded
- Events
- 9
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.
An upper level trough over the Ohio Valley moved southeast across the Southern Appalachians while driving a cold frontal boundary across the region. Moderate to strong instability and decent wind shear aided the development of severe convection during the afternoon and early evening. Most of the severe storms produced large hail. Wind damage was rather limited during the event.
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 Mar 31, 12:25 PM EST, 45 minutes earlier.
Area forecast discussion, Mar 31, 12:25 PM EST, 45 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MORRISTOWN TN 125 PM EDT SAT MAR 31 2012 .AVIATION...WEAK FRONTAL BOUNDARY WILL SAG INTO THE AREA AND STALL. WILL SEE SOME SCATTERED CONVECTION AROUND...SO WILL CARRY VCTS EARLY IN THE PERIOD. WILL HAVE SCATTERED TO BROKEN CLOUDS...MOSTLY AT VFR LEVELS...BUT MAY SEE SOME MVFR CIGS REFORM AT TRI TONIGHT. ALSO FOG DEVELOPMENT POSSIBLE. FOR NOW WILL CARRY MVFR CONDITIONS ALL SITES LATE TONIGHT...BUT CANNOT RULE OUT LOWER CONDITIONS. && .MRX WATCHES/WARNINGS/ADVISORIES... NC...NONE. TN...NONE. VA...NONE. && LW
Hazardous weather outlook, Mar 31, 3:29 AM EST, 9 hours 41 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE MORRISTOWN TN 429 AM EDT SAT MAR 31 2012 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-010830- 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- 429 AM EDT SAT MAR 31 2012 /329 AM CDT SAT MAR 31 2012/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHWEST NORTH CAROLINA...EAST TENNESSEE AND SOUTHWEST VIRGINIA. .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 WILL NOT BE NEEDED.
In the hours before
Local storm report, Mar 31, 10:34 AM EST, 2 hours 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
1134 AM EDT SAT MAR 31 2012
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0405 PM TSTM WND DMG 2 NW SEVIERVILLE 35.91N 83.60W
03/30/2012 SEVIER TN 911 CALL CENTER
DISPATCH REPORTED A FEW TREES DOWN ON BOYDS CREEK
HIGHWAY.
&&
KGUILLETThe radar
The Knoxville radar (KMRX), 93 km away, was scanning. The volume nearest the first event began at 18:12 UTC.
Event by event
7 hail, 2 thunderstorm wind. Local standard time, as filed.
Thunderstorm Wind, Anderson
- When
- March 31, 2:00 PM EST
- Where
- Anderson County, 0.56 mi W of Lake City
- Measured
- 50 kt (58 mph) estimated gust
- Reported by
- Department of Highways
- Coordinates
- 36.220, -84.160
A few trees were reported down in Lake City.
Hail, Loudon
- When
- March 31, 2:35 PM EST
- Where
- Loudon County, 0.89 mi NW of Loudon
- Measured
- 1.75 in hail
- Reported by
- Law Enforcement
- Coordinates
- 35.740, -84.360
Golf ball sized hail was reported at Loudon.
Hail, Anderson
- When
- March 31, 2:42 PM EST
- Where
- Anderson County, 1.78 mi SE of Clinton
- Measured
- 1.5 in hail
- Reported by
- Trained Spotter
- Coordinates
- 36.100, -84.110
Ping pong ball sized hail fell in Clinton.
Hail, Monroe
- When
- March 31, 3:12 PM EST
- Where
- Monroe County, 1.49 mi SSW of Mc Ghee
- Measured
- 1 in hail
- Reported by
- Trained Spotter
- Coordinates
- 35.600, -84.230
Penny to quarter sized hail was reported in Vonore.
Hail, Monroe
- When
- March 31, 3:12 PM EST
- Where
- Monroe County, 3.13 mi ENE of Acorn
- Measured
- 1.75 in hail
- Reported by
- Trained Spotter
- Coordinates
- 35.490, -84.180
Golf ball sized hail fell in the Cherokee National Forest three miles east northeast of Acorn.
Hail, Knox
- When
- March 31, 3:18 PM EST
- Where
- Knox County, West Knoxville
- Measured
- 1 in hail
- Reported by
- Trained Spotter
- Coordinates
- 35.970, -83.950
Quarter size hail was reported in West Knoxville.
Hail, Hamilton
- When
- March 31, 3:24 PM EST
- Where
- Hamilton County, 1.38 mi S of Rathburn
- Measured
- 1 in hail
- Reported by
- Trained Spotter
- Coordinates
- 35.260, -85.170
Quarter size hail was reported in Soddy-Daisy.
Hail, Monroe
- When
- March 31, 3:36 PM EST
- Where
- Monroe County, 3.13 mi ENE of Acorn
- Measured
- 1.75 in hail
- Reported by
- Trained Spotter
- Coordinates
- 35.490, -84.180
Golf ball sized hail fell in the Cherokee National Forest near Acorn.
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.
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Damaging Wind in California, March 31, 2012
- Hail in Georgia, March 31, 2012
- Hail and Damaging Winds in Alabama, March 31, 2012
- Flash Flood and Hail in Tennessee, March 31, 2012
- High Wind and Strong Wind in Nevada, March 31, 2012
- Hail and Damaging Winds in Alabama, March 31, 2012
- Hail in South Carolina, March 31, 2012
- Flash Flooding and Hail in Mississippi, March 31, 2012
- Hail in Iowa, March 31, 2012
- Wildfire and Hail in Florida, March 31, 2012
- High Wind in Utah, March 31, 2012
- Hail in Tennessee, March 31, 2012
More
Every storm in Tennessee in 2012Every state in 2012This day in weather historyWarnings in Tennessee, March 2012
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: 374019, 374020, 373990, 373999, 373995, 373997, 373991, 373993, 373998.