Winchester Metro Area Natural Disasters and Weather Extremes
The chance of earthquake damage in Winchester Area is much lower than the national average. The risk of tornado damage in Winchester Area is much lower than the national average.
Earthquake Index, #522
The earthquake index value is calculated based on historical earthquake events data using USA.com algorithms. It is an indicator of the earthquake level in a region. A higher earthquake index value means a higher chance of an earthquake.
Volcano Index, #129
The volcano index value is calculated based on the currently known volcanoes using USA.com algorithms. It is an indicator of the possibility of a region being affected by a possible volcano eruption. A higher volcano index value means a higher chance of being affected.
Tornado Index, #681
The tornado index value is calculated based on historical tornado events data using USA.com algorithms. It is an indicator of the tornado level in a region. A higher tornado index value means a higher chance of tornado events.
Other Weather Extremes Events
A total of 13,148 other weather extremes events from 1950 to 2010 were recorded in Winchester Area. The following is a break down of these events:
|Dust Storm:||0||Flood:||2,228||Hail:||2,205||Heat:||64||Heavy Snow:||214|
|High Surf:||1||Hurricane:||3||Ice Storm:||48||Landslide:||0||Strong Wind:||232|
|Thunderstorm Winds:||6,600||Tropical Storm:||10||Wildfire:||23||Winter Storm:||212||Winter Weather:||155|
No volcano is found in or near Winchester Area.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Winchester Area.
No historical earthquake events found in or near Winchester Area.
Historical Tornado Events
A total of 16 historical tornado events that had recorded magnitude of 2 or above found in or near Winchester Area.
|Distance (miles)||Date||Magnitude||Start Lat/Log||End Lat/Log||Length||Width||Fatalities||Injuries||Property Damage||Crop Damage||Affected County|
|14.8||1961-07-13||2||39°19'N / 78°12'W||0||1||3K||0||Frederick|
|17.9||2004-09-17||2||39°10'N / 78°10'W||39°12'N / 78°09'W||5.00 Miles||125 Yards||0||0||250K||0||Frederick|
|Brief Description: An F2 tornado produced a nearly continuous path of damage for 5 miles in eastern Frederick County. It touched down west of Millwood Pike near the Winchester Airport. Three homes suffered roof damage, a detached two car garage was destroyed, a platform deck was blown away, an office trailer was overturned, and numerous trees along the track of the storm were uprooted or topped.|
|23.6||1975-08-04||2||39°14'N / 78°02'W||0.80 Mile||100 Yards||0||0||250K||0||Clarke|
|24.5||2004-09-17||2||39°22'N / 78°02'W||39°23'N / 78°02'W||2.00 Miles||100 Yards||0||6||25K||0||Berkeley|
|Brief Description: A tornado touched down in Darkesville in southern Berkeley County. The F2 tornado produced extensive structural damage to homes and businesses in the area. The storm traveled north and toppled tractor trailers and vehicles on Interstate-81. At least 6 people were injured from the automobile accidents.|
|26.6||1998-06-02||2||39°23'N / 79°03'W||39°20'N / 78°52'W||10.00 Miles||150 Yards||0||0||150K||100K||Mineral|
|Brief Description: The combination of an upper-level disturbance, increasing atmospheric shear, and ample instability set the stage for a major severe weather episode across portions of eastern West Virginia during the late afternoon and evening. The episode was highlighted by supercell thunderstorms which produced two multi-county tornadoes and several instances of large hail. For many residents of the Potomac highlands, the storms were a watershed event; the locals believed that tornadoes "like those in the midwest and Great Plains" could never strike. The first twister, originally associated with a supercell which had produced a long (11-13 mile track) tornado in Somerset Co, Pennsylvania, re-emerged in extreme northeastern Mineral Co just east of Wagoner. The storm crossed into Hampshire Co, then passed an Allegheny Power substation before causing minor damage at some homes just north of Donaldson. Damage included a destroyed gazebo, stripped siding/trim from homes, and several uprooted or snapped trees. The tornado crossed River Mountain, causing damage primarily to forested areas. The path continued across the South Branch of the Potomac River before the tornado dissipated just outside the town of Levels. The second tornado produced significantly more property damage. Initial reports of a funnel cloud over Bloomington, Maryland (Garrett Co) became prophetic as the first touchdown occurred 5 miles southwest of Keyser. Damage increased as the storm descended the Allegheny front range (Green Mountain). A car was blown over, a garage destroyed, and several trees were snapped or uprooted. A pine tree landed on one home, another home sustained minor damage, and a nearby mobile home had its skirting blown off. The twister crossed New Creek Mountain, levelling numerous trees in heavily forested areas. Damage intensified after the tornado descended the mountain. One mobile home was destroyed - and, after the storm crossed federal highway 220, more tree damage was noted, as was minor damage to homes and extensive damage to outbuildings. The storm continued along federal highway(s) 50/220 to Ridgeville, rolling one mobile home, causing minor damage to nearby buildings, and destroying a barn near the Mill Creek Country Club just west of Burlington. From there, the tornado continued over Patterson Creek Mountain and into Hampshire Co, where several mobile homes were damaged or rolled along Davy Road. Five persons in one of the homes sustained minor injuries; only one accepted transport to a local hospital for head trauma. A station wagon was completely turned around and sustained minor damage. The twister then tracked three miles south of Junction, where it likely dissipated. Hail was associated with each mini-supercell - and several residents, including fruit farmers, noted varying amounts of damage due to prolonged and, in some cases, sizeable hail. One grower reported total damage to his orchard (near Levels); other damage was seen in the form of stripped leaves and downed small limbs. Conditions quieted after the final supercell (that which produced the second tornado) passed.|
|34.6||1998-06-02||4||39°40'N / 78°58'W||39°38'N / 78°50'W||8.00 Miles||250 Yards||0||5||5.0M||250K||Allegany|
|Brief Description: The combination of an upper-level disturbance, increasing atmospheric shear, and ample instability set the stage for a major severe weather episode across the north half of Maryland during the late afternoon and evening. The episode was highlighted by supercell thunderstorms which produced three tornadoes, numerous instances of large hail, and several downbursts. The most substantial event was a strong-to-violent tornado which caused excessive damage in western Allegany Co. The multi-vortex twister had estimated wind speeds of 210 mph - the highest in recorded Maryland history - when it ravaged a neighborhood of well-constructed single-family homes along a local plateau just north of Frostburg. The tornado was on the ground for an amazing 33 miles, beginning in Somerset Co, Pennsylvania before crossing northeastern Garrett Co Maryland on its way to Allegany Co. The parent supercell tracked over 200 miles. After descending Big Savage Mountain, the twister produced a swath of destruction across a neighborhood just west of Frostburg. At least eight homes were destroyed and dozens others were damaged. Several cars were damaged, and some were totalled. One two-story home was obliterated. Left in the wake was the foundation and some remnant plywood. The residents of the home - a woman and two children - received ample warning and rode out the storm to safety in the basement. Advance warning likely saved several lives and reduced casualties; in all, only 5 area residents sustained minor injuries. The tornado continued through Eckhart Mines and Clarysville, causing further damage and destruction to homes and other property. It then continued through undeveloped areas, then passed across Dans Mountain before damaging a few more residences along state route 53 just north of Cresaptown. The twister lifted at that point, but the parent thunderstorm continued producing damage into eastern West Virginia. In all, emergency management officials reported 29 homes destroyed and 125 damaged, with nearly half of the surviving homes receiving moderate to major levels of damage. Initial dollar estimates ranged from $4.5 to $5 million. Hundreds, perhaps thousands, of trees in forested and developed areas were snapped or uprooted. The supercell was so powerful that Frostburg area residents' papers, including personal checks and one high school diploma - were found over 50 miles downstream in the northern Shenandoah Valley region of Virginia. The "Frostburg Tornado" was not the only twister to affect the county. The area had been on high alert since early evening - tornado warnings had been issued two other times, and funnel clouds were observed by several witnesses prior to sunset. One of the funnels touched down not too far from where the Frostburg Tornado entered the county - along the west side of Big Savage Mountain nearly 2 hours earlier. The funnel lifted while over Frostburg and nearby communities, and continued through Cumberland before touching down again on Irons Mountain 2-3 miles southeast of the city. In each instance, damage was limited to forested areas along the ridges. Tornadoes were just a portion of the severe weather to affect northern Maryland. The other major player was hail, with dozens of occurrences associated with each mini-supercell. The strongest cells produced hailstones ranging from 1.75" to 2.50" in diameter; the strong updrafts in each storm combined with steep atmospheric lapse rates to produce not only large hail but long-duration hail as well. Some areas experienced up to 20 minutes of hail, and many residents noted hail which covered the ground. Reported damage included some stripped siding, varying sized dings and dents, as well as shattered glass, in numerous vehicles; stripped paint from homes and vehicles, small limb and leaf debris, and likely crop damage or destruction. The main hail-producing storm affected portions of northern Montgomery, Howard, southern Carroll, southern Baltimore, and northern Prince George's and Anne Arundel Cos - all between 1800 and 1945EST. The episode concluded in Maryland with a few wind damage reports on the western shore of the Chesapeake Bay just before midnight. Winds blew out the door to the Annapolis (Anne Arundel Co) city fire department station, and knocked several large trees down in Eastport at approximately the same time.|
|35.5||1969-07-05||2||39°40'N / 78°54'W||0.50 Mile||200 Yards||0||1||250K||0||Allegany|
|36.4||1989-11-16||2||39°15'N / 77°47'W||39°20'N / 77°48'W||9.00 Miles||50 Yards||0||3||250K||0||Jefferson|
|39.8||1998-06-02||2||39°44'N / 78°58'W||39°42'N / 78°56'W||2.50 Miles||700 Yards||0||0||500K||0||Garrett|
|Brief Description: An F2 tornado passed through the town of Finzel in extreme northeast Garrett County. Several buildings were destroyed, including a small house and cinder-block garage. This tornado actually began in extreme eastern Fayette County, PA and was on the ground for 33 miles before ending in in Allegany County, MD.|
|41.5||2002-04-28||2||38°41'N / 78°40'W||38°41'N / 78°35'W||4.00 Miles||75 Yards||0||2||1.6M||0||Shenandoah|
|Brief Description: A tornado injured 2 people, destroyed 4 homes, damaged 56 additional homes and 36 agricultural structures, downed numerous trees, and blew over a tractor-trailer on Interstate 81. A long-lived supercell thunderstorm formed over northwest Rockingham County during the afternoon of the 28th. This severe storm moved east at 45 MPH, damaging property all of the way to the Potomac River. This same storm later produced a devastating F4 tornado in La Plata, MD. While the storm moved through North Central Virginia, it produced an F2 tornado in Shenandoah County, a significant funnel cloud in Fauquier County, large hail, heavy downpours, and scattered wind damage. In Shenandoah County, an F2 tornado touched down just east of Quicksburg near the intersection of Quicksburg Road and Old Bridge Road. The tornado stayed on the ground for 4 miles before it dissipated while moving up the west side of Massanutten Mountain. The twister was estimated to be about 75 yards wide and it caused a total of $1.6 million in damage. Along the path of the tornado, three residential structures were destroyed, 12 structures were heavily damaged, and 15 had minor damage. Four poultry houses and 15 barns were destroyed. Five poultry houses, two silos, and a mile of fencing was also damaged. On Old Bridge Road, a silo and three barns were damaged. Airborne roof debris and high winds hit a tractor-trailer on I-81 and caused it to flip onto its side. The driver of the tractor-trailer was treated for minor injuries. The tornado moved across I-81 and Route 11 into the Kay Hill subdivision. Homes were damaged and trees were downed on Lower and Upper Forge Road. A mobile home on Mantz Drive was destroyed. The tornado moved east across Smith Creek to Smith Creek Road and Franwood Lane where it caused significant damage. A two-story home just off Smith Creek Road was severely damaged by debris from a neighbor's 60-foot-high grain silo. A woman inside the structure was treated for bruises. On Franwood Lane, two turkey houses were destroyed and four were severely damaged. One dog that lived on the property was killed and another was injured. A cat was never found. A shed was damaged and work equipment was scattered across the property. At Franwood Farms Airport, 5 people took shelter from the storm in a hangar. A person in the hangar said the walls kept coming closer together as the tornado approached and eventually the roof blew off the building. The tornado also flipped a plane on the landing strip. The tornado's path was visible up to two miles east of Franwood Farms through a path of damaged trees in the forest. The path of tree damage ended as the topography sloped up Massanutten Mountain into George Washington National Forest. In addition, an orchard west of Mt. Jackson just north of the tornado's path, sustained hail damage. In Rockingham County, dime sized hail fell in Bergton for ten minutes. In Page County, golf ball sized hail fell in Rileyville. Power lines were downed in Stanley. In Culpeper County, a tree was downed onto Route 522 near Route 633 in Norman. In Fauquier County, a funnel cloud was photographed by a meteorologist on a hill near Fauquier Springs. The time series of photos shows the funnel never reaching the ground. High winds downed a large tree and utility poles onto Harts Mill and Spriggs roads about 5 miles west of Warrenton. In New Baltimore, dime sized hail was reported. In Prince William County, quarter sized hail fell in Woodbridge and Manassas. Golf ball sized hail caused property damage in Dale City. A total of 2.20 inches of rain fell in Canova as the storm passed through.|
|41.7||1996-07-19||2||39°23'N / 77°42'W||39°21'N / 77°42'W||2.00 Miles||125 Yards||0||0||400K||75K||Washington|
|Brief Description: A moderate tornado (F2) tracked between two mountain ridges in extreme southern Washington Co, knocking down hundreds of trees, including several onto homes which caused substantial damage. At least one barn was completely destroyed in Yarrowsburg. The storm attained maximum strength just south of town (where the trees, including numerous hardwoods, were flattened). The tornado weakened considerably before dissipating along the eastern ridge. Structural and vehicle damage, though not as prevalent as the tree damage, included the following: Portions of roofs from two barns were blown off; minor residential damage, including shattered windows, unhinged shingles, and torn off trim/gutters. Some gravestones were overturned by the winds, and several power lines were knocked down. Several vehicles and vehicle windows were damaged.|
|43.8||1998-05-31||3||39°45'N / 79°05'W||39°44'N / 78°58'W||13.00 Miles||880 Yards||1||15||4.0M||0||Somerset|
|Brief Description: The tornado touched down just east of Mt. Davis and traveled east-southeast into downtown Salisbury. The storm then continued eastward for 8 miles ending east of the town of Pocahontas. The tornado was rated as an F2 (113 to 157 mph) through the town of Salisbury, but probably reached F3 (158 to 206 mph) intensity briefly near Pocohontas. Along the 15 mile path, damages were estimated to reach between $3 million to $4 million. The path length of the tornado was probably close to 15 miles. F0 damage (40-72 mph) was in a swath about 1/2 mile wide, with F2 damage confined to an area about 2 blocks wide in Salisbury. Near Pocohontas, a farmhouse was completely destroyed indicating winds of F3 intensity (158 to 206 mph) in an area about 50 yards wide. Fifteen people were injured from the tornado. One person, a 13 year old female in a van, lost her life when a tree fell onto the vehicle. 150 people were sheltered overnight Sunday. A 51-year old male and 15-year old female died from carbon monoxide poisoning when a portable generator malfunctioned 3 days after the event. The tornado struck downtown Salisbury around 8:50pm. Ten to fifteen businesses were significantly damaged. Siding and parts of roofs were removed from a number of homes, and part of a roof was removed from a church. The roof was completely ripped off of a furniture factory. Several tractor trailers at the factory were overturned. F13VE|
|46.6||1967-05-19||3||39°23'N / 79°20'W||0.30 Mile||33 Yards||1||0||25K||0||Garrett|
|47.4||2004-09-17||2||39°24'N / 77°33'W||39°24'N / 77°39'W||3.00 Miles||200 Yards||0||0||5K||0||Frederick|
|Brief Description: An F2 tornado touched down in far northwest Frederick County, on the northwest edge of Catoctin Mountain Park. A thickly forested stand of hardwood trees was snapped off above the bases.|
|48.5||1980-06-03||2||39°00'N / 77°40'W||38°59'N / 77°37'W||2.70 Miles||100 Yards||0||0||25K||0||Loudoun|
|48.9||1978-06-19||2||38°40'N / 78°00'W||0.20 Mile||40 Yards||0||0||25K||0||Rappahannock|
* The information on this page is based on the global volcano database, the U.S. earthquake database of 1638-1985, and the U.S. Tornado and Weather Extremes database of 1950-2010.