Alert archive / Virginia / Tornado Watches in 1998

Tornado Watch 495

June 2, 19985 states

The Storm Prediction Center issued this tornado watch at Jun 2, 1998, 6:45 PM EDT for 5 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 2, 1998, 6:45 PM EDT (22:45 UTC)
Expired
Jun 3, 1998, 1:00 AM EDT
In force
6 hr
Issued by
the Storm Prediction Center
All 58 counties

Kent County, DE, New Castle County, DE, Sussex County, DE, Anne Arundel County, MD, Baltimore County, MD, Calvert County, MD, Caroline County, MD, Carroll County, MD, Cecil County, MD, Charles County, MD, City of Baltimore, MD, Dorchester County, MD, Frederick County, MD, Harford County, MD, Howard County, MD, Kent County, MD, Montgomery County, MD, Prince George's County, MD, Queen Anne's County, MD, Saint Mary's County, MD, Talbot County, MD, Washington County, MD, Wicomico County, MD, Atlantic County, NJ, Cape May County, NJ, Cumberland County, NJ, Salem County, NJ, Arlington County, VA, Augusta County, VA, City of Alexandria, VA, City of Fairfax, VA, City of Falls Church, VA, City of Fredericksburg, VA, City of Harrisonburg, VA, City of Manassas, VA, City of Manassas Park, VA, City of Staunton, VA, City of Winchester, VA, Clarke County, VA, Culpeper County, VA, Fairfax County, VA, Fauquier County, VA, Frederick County, VA, Greene County, VA, King George County, VA, Loudoun County, VA, Madison County, VA, Orange County, VA, Page County, VA, Prince William County, VA, Rappahannock County, VA, Rockingham County, VA, Shenandoah County, VA, Spotsylvania County, VA, Stafford County, VA, Warren County, VA, Berkeley County, WV, Jefferson County, WV

The radar

The Sterling radar (KLWX), 32 km from the middle of the area, began a volume at 22:46 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.

Warnings issued inside it

22 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 2, 6:59 PM EDTSevere Thunderstorm WarningLWXBaltimore61 min
Jun 2, 7:11 PM EDTSevere Thunderstorm WarningLWXMontgomery49 min
Jun 2, 7:20 PM EDTSevere Thunderstorm WarningLWXArlington, Fairfax, City of Falls Church35 min
Jun 2, 7:31 PM EDTSevere Thunderstorm WarningLWXCity of Baltimore34 min
Jun 2, 7:37 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Howard, Prince George's63 min
Jun 2, 8:01 PM EDTSevere Thunderstorm WarningPHIKent49 min
Jun 2, 8:34 PM EDTSevere Thunderstorm WarningPHIQueen Anne's36 min
Jun 2, 8:43 PM EDTSevere Thunderstorm WarningLWXAnne Arundel32 min
Jun 2, 8:49 PM EDTSevere Thunderstorm WarningPHINew Castle41 min
Jun 2, 8:54 PM EDTTornado WarningLWXFrederick, City of Winchester51 min
Jun 2, 8:59 PM EDTSevere Thunderstorm WarningPHITalbot46 min
Jun 2, 9:05 PM EDTSevere Thunderstorm WarningPHICaroline35 min
Jun 2, 9:18 PM EDTSevere Thunderstorm WarningLWXBerkeley, Morgan47 min
Jun 2, 9:21 PM EDTSevere Thunderstorm WarningAKQDorchester24 min
Jun 2, 9:26 PM EDTSevere Thunderstorm WarningLWXClarke49 min
Jun 2, 9:43 PM EDTSevere Thunderstorm WarningLWXLoudoun62 min
Jun 2, 9:50 PM EDTSevere Thunderstorm WarningAKQDorchester50 min
Jun 2, 9:55 PM EDTTornado WarningLWXLoudoun50 min
Jun 2, 10:24 PM EDTTornado WarningLWXFrederick, City of Winchester46 min
Jun 2, 10:31 PM EDTSevere Thunderstorm WarningAKQWicomico49 min
Jun 2, 11:06 PM EDTSevere Thunderstorm WarningLWXClarke49 min
Jun 2, 11:29 PM EDTSevere Thunderstorm WarningLWXFauquier46 min

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 10.8 hours before the alert went out and 26 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.

Skew-T log-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 1998-06-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 1998-06-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 159 square meters per square second.1939587897Sfc1 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.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1525 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
159 m²/s²
0-3 km storm-relative helicity
193 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 2, 4:15 PM EDTTornado WatchSPCAllegany, Garrett6 hr
Jun 2, 5:15 PM EDTTornado WatchSPCCamden, Gloucester, Hunterdon, Sussex, Warren6 hr
Jun 2, 3:10 PM EDTTornado WatchSPCAlleghany, Bath, Bland, Buchanan, Craig, Dickenson and 14 more6 hr
Jun 2, 5:45 PM EDTTornado WatchSPCAlbemarle, Alleghany, Amelia, Amherst, Appomattox, Bedford and 53 more6 hr

Nearby

Tornado Watches in Virginia, 1998Tornado Watches in Maryland, 1998Tornado Watches in New Jersey, 1998Every tornado watch in 1998

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.