Alert archive / Virginia / Tornado Warnings in 1999
Tornado Warning 5, NWS Baltimore/Washington
NWS Baltimore/Washington issued this tornado warning at Jul 24, 1999, 2:07 PM EDT for Spotsylvania County, Stafford County, Virginia. It was in force for 48 min. 3 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 24, 1999, 2:07 PM EDT (18:07 UTC)
- Expired
- Jul 24, 1999, 2:55 PM EDT
- In force
- 48 min
- Issued by
- NWS Baltimore/Washington
- Area
- Whole counties
Counties Spotsylvania County, VA, Stafford County, VA
The radar
The Sterling radar (KLWX), 75 km from the middle of the area, began a volume at 18:06 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 24, 2:18 PM EDT | Tornado F1 | Sylvania Hgts, VA | Trees downed |
| Jul 24, 2:20 PM EDT | Thunderstorm Wind | Four Mile Fork, VA | Damage to roof at Fredericksburg Academy |
| Jul 24, 2:20 PM EDT | Tornado F1 | Falmouth, VA | Trees and power lines downed |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 24, 1:00 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 6.1 hours before the alert went out and 73 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 206 J/kg
- Mixed-layer CIN
- -204 J/kg
- Mixed-layer LCL
- 1846 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 12:30 PM EDT | Severe Thunderstorm Warning | LWX | Greene, Madison, Page | 45 min |
| Jul 24, 1:15 PM EDT | Severe Thunderstorm Warning | LWX | Culpeper, Fauquier | 35 min |
| Jul 24, 1:44 PM EDT | Severe Thunderstorm Warning | LWX | Spotsylvania, Stafford, City of Fredericksburg | 61 min |
| Jul 24, 2:24 PM EDT | Severe Thunderstorm Warning | LWX | King George | 31 min |
| Jul 24, 1:30 PM EDT | Severe Thunderstorm Warning | LWX | Charles | 50 min |
| Jul 24, 2:33 PM EDT | Severe Thunderstorm Warning | LWX | Saint Mary's | 62 min |
| Jul 24, 2:43 PM EDT | Severe Thunderstorm Warning | LWX | Calvert | 32 min |
| Jul 24, 5:59 PM EDT | Severe Thunderstorm Warning | LWX | Berkeley, Jefferson | 61 min |
Nearby
Tornado Warnings in Virginia, 1999Every tornado warning in 1999Tornadoes in 1999
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.