Tornadoes · United States · Virginia · 1999

F1 tornado, Paytes, Virginia, April 9, 1999

This F1 tornado ran 3.5 miles across Spotsylvania County on April 9, 1999, touching down at 6:17 PM EDT and reaching 100 yards wide. It killed nobody, and did $20,000 of property damage.

The rating scale

Tracks are drawn in the color of the rating. The Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.

  1. F040 to 72 mph

    Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

  2. F173 to 112 mphthis tornado

    Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

  3. F2113 to 157 mph

    Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.

  4. F3158 to 206 mph

    Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

  5. F4207 to 260 mph

    Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

  6. F5261 to 318 mph

    Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.

  7. Unrated

    The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.

The record

Rating
F1
Date
April 9, 1999
Touchdown
6:17 PM EDT (22:17 UTC)
Path length
3.5 miles (5.6 km)
Path width
100 yards (91 m)
Deaths
0
Injuries
0
Property damage
$20,000
County
Spotsylvania County
Touchdown point
38.230, -77.800
Lift-off point
38.180, -77.780
Record number
247

What the Weather Service recorded

Between 6:10 PM and 6:25 PM EDT, a line of thunderstorms moved east from Orange County into Spotsylvania County. Strong winds associated with the gust front ahead of the storms produced scattered tree damage in Eastern Orange County and Western Spotsylvania County. Areas affected include Gold Dale, Mine Run, Paytes, Granite Springs, and Porters. Over 100 trees were damaged; some were uprooted, some were snapped, and others lost large branches. The strong winds also bent several home antennas and blew off several roof shingles. A small tornado developed with one of the storms near Mine Run. The tornado first touched down around 6:17 PM EDT on the Orange/Spotsylvania County line in a small community 1 mile north of Paytes. The tornado travelled southeast about 3 1/2 miles and lifted just east of Mastins Corner around 6:23 PM EDT. The average path width was about 100 yards. Much of the damage was rated F0 for 40 to 70 mph winds, but some locations received 70 to 90 mph winds and F1 damage. The F1 damage occurred around 2 miles east of Paytes through a densely wooded area where numerous large trees, both pines and hardwoods, were uprooted or snapped. The hardwoods did not have leaves at the time, so a stronger wind was required to damage them. Eight homes along the path of the tornado sustained minor damage,and seven sheds were damaged or destroyed. Most of the structural damage occurred in a residential community 1 mile northeast of Paytes. The same storm system was also responsible for downing trees and power lines as it passed through the Fredericksburg area. The storm hit Fredericksburg around 7:00 PM EDT and left about 5,000 customers without power.

Several sheds destroyed, Trees Downed, Minor Damage to Homes

From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.

The warnings

No tornado warning for this county appears in the archive as in force at the moment the tornado touched down.

Every warning and watch covering the touchdown point that day, from the Iowa Environmental Mesonet's archive of National Weather Service products. Lead time is measured from the issue of the warning in force to the touchdown time in the database, both of which were recorded to the minute by different people.

The forecast that day

The Storm Prediction Center had this point in a Slight Risk. The outlook in force was issued at 20:11 UTC.

SPC's Day 1 convective outlook as it stood when the tornado began, read at the touchdown point. The same archive is on the radar archive.

The air that afternoon

The radiosonde launches on either side of the tornado, from the nearest station that was launching then, drawn and analyzed the way Storm Lab does: the same diagram, the same parcel and shear definitions SPC's mesoanalysis uses.

Washington/Dulle, VA (KIAD), 12:00Z

10.3 hours before the tornado, 90 km from the path. April 9, 1999.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 1999-04-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 0 joules per kilogram, CIN -66873, lifted condensation level 2194 meters above ground. Wind barbs in knots down the right edge.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 1999-04-09The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 307 square meters per square second, 0 to 6 km bulk shear 46 knots.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
-66873 J/kg
Surface CAPE
0 J/kg
Mixed-layer LCL
2194 m above ground
0-6 km bulk shear
46 kt
0-1 km bulk shear
18 kt
0-1 km storm-relative helicity
307 m²/s²
0-3 km storm-relative helicity
614 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
4.0 K/km

Open this sounding in Storm Lab

The radar

The Sterling radar (KLWX), 90 km away, was scanning. The volume nearest the touchdown began at 22:17 UTC.

Open the radar archive at this moment, over the track

Reflectivity and velocity, decoded from the Level II archive in the browser. Volumes take a few seconds to open the first time.

This ground now

The live radar over the trackEvery 1999 tornado in VirginiaEvery tornado in Virginia since 1950Warnings in force in Virginia nowThe forecast where you are

The other tornadoes of April 9, 1999

8 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
April 92:56 AM ESTF3Jefferson, IN3.0250$350,000
April 93:05 AM ESTF3Ripley, IN15.04502$1.4 million
April 94:44 AM EDTF0Dearborn, IN1.050$250,000
April 94:55 AM EDTF1Hamilton, OH0.8100$200,000
April 95:00 AM EDTF1Miami, OH3.5100$250,000
April 95:12 AM EDTF4Blue Ash tornado, OH10.0270465$85 million
April 95:33 AM EDTF2Warren, OH1.5100$2.5 million
April 96:00 AM EDTF1Champaign, OH0.5220$300,000

What this means

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.

Sources

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.