Alert archive / West Virginia / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 1, NWS Baltimore/Washington
NWS Baltimore/Washington issued this severe thunderstorm warning at Mar 13, 2001, 9:04 PM EST for Clarke County, Virginia; Berkeley County, Jefferson County, West Virginia. It was in force for 26 min. 5 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
- Mar 13, 2001, 9:04 PM EST (02:04 UTC)
- Expired
- Mar 13, 2001, 9:30 PM EST
- In force
- 26 min
- Issued by
- NWS Baltimore/Washington
- Area
- Whole counties
Counties Clarke County, VA, Berkeley County, WV, Jefferson County, WV
The radar
The Sterling radar (KLWX), 54 km from the middle of the area, began a volume at 02:04 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 |
|---|---|---|---|
| Mar 13, 9:06 PM EST | Thunderstorm Wind 72 M | Martinsburg, WV | A wind gust of 83 MPH was recorded on a ridge just outside of town. |
| Mar 13, 9:10 PM EST | Thunderstorm Wind | Charles Town, WV | A fixed awning over a gas pump island was toppled. |
| Mar 13, 9:13 PM EST | Thunderstorm Wind | Countywide, VA | Trees and power lines were downed. |
| Mar 13, 9:13 PM EST | Thunderstorm Wind | Charles Town, WV | Trees were downed. |
| Mar 13, 9:15 PM EST | Thunderstorm Wind | Charles Town, WV | A wall was blown down on a home under construction and a deck was dislodged from a townhouse. |
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 nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 2.1 hours before the alert went out and 62 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2640 m above ground
- 0-6 km bulk shear
- 86 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- 79 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.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Baltimore/Washington wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 13, 8:19 PM EST, 45 minutes earlier.
Area forecast discussion, Mar 13, 8:19 PM EST, 45 minutes before
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON 819 PM EST TUE MAR 13 2001 SHRA/TSTM ENTERING CWFA ATTM. WL RAISE POPS ENTIRE AREA. EMPH ON BRIEF HVY RA...BUT ELVTD RUMBLE OF THUNDER PSBL...ESP W. ZFP/RDF TO FLLW. .LWX...SMALL CRAFT ADVSRY UPR CHES BAY AND PTMC. HTS
In the hours before
Special weather statement, Mar 13, 8:05 PM EST, 59 minutes before
DCZ001-MDZ002>007-009>011-013-014-016>018-VAZ021-025>031-036>042- 050>057-WVZ048>055-140400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE BALTIMORE-WASHINGTON 805 PM EST TUE MAR 13 2001 ...WIND GUSTS TO 50 MILES PER HOUR LIKELY TONIGHT... A FINAL LINE OF SHOWERS WILL MOVE EAST ACROSS THE REGION BETWEEN 8 PM AND 1030 PM TONIGHT. THIS LINE WILL BRING A STRONG GUST OF WIND WITH BRIEF HEAVY RAIN AND SMALL HAIL. WEST AND NORTHWEST WINDS WILL GUST AS HIGH AS 50 MILES PER HOUR WITH THE SHOWERS. THIS BAND OF GUSTY SHOWERS WILL ENTER THE EASTERN WEST VIRGINIA PANHANDLE AND WESTERN MARYLAND AROUND 8 PM...THEN PROGRESS EAST ACROSS THE REGION. IT SHOULD REACH THE DC AND BALTIMORE METRO AREAS CLOSE TO 9 PM...AND THE BAY AROUND 10 PM. ALL OF THESE TIMES ARE APPROXIMATE. IF YOU HAVE LOOSE OUTDOOR OBJECTS IN YOUR YARD...YOU WILL WANT TO SECURE THEM OR BRING THEM INDOORS. OTHERWISE...THEY MAY BLOW AWAY OR BECCOME DANGEROUS AIRBORNE PROJECTILES. STRONG/HTS
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 13, 9:04 PM EST | Severe Thunderstorm Warning | LWX | Fauquier, Loudoun | 26 min |
| Mar 13, 9:35 PM EST | Severe Thunderstorm Warning | LWX | Arlington, Fairfax, City of Alexandria | 40 min |
| Mar 13, 9:35 PM EST | Severe Thunderstorm Warning | LWX | City of Falls Church | 40 min |
| Mar 13, 9:35 PM EST | Severe Thunderstorm Warning | LWX | City of Fairfax | 40 min |
| Mar 13, 9:35 PM EST | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Carroll, Howard, City of Baltimore | 40 min |
| Mar 13, 10:15 PM EST | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Charles, Prince George's | 30 min |
Nearby
Severe Thunderstorm Warnings in West Virginia, 2001Severe Thunderstorm Warnings in Virginia, 2001Every severe thunderstorm warning in 2001
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.