Alert archive / Maryland / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 73, NWS Baltimore/Washington

June 15, 1998Prince George's County, Maryland

NWS Baltimore/Washington issued this severe thunderstorm warning at Jun 15, 1998, 5:25 PM EDT for Prince George's County, Maryland. It was in force for 50 min. 1 report 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
Jun 15, 1998, 5:25 PM EDT (21:25 UTC)
Expired
Jun 15, 1998, 6:15 PM EDT
In force
50 min
Issued by
NWS Baltimore/Washington
Area
Whole counties

County Prince George's County, MD

What was reported inside it

TimeReportWhereRemark
Jun 15, 5:35 PM EDTThunderstorm WindOxon Hill, MD

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.

IssuedProductOfficeLasted
Jun 15, 3:30 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 9.4 hours before the alert went out and 50 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 1998-06-15Temperature 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 1998-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 174 square meters per square second.19395878Sfc1 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
697 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
174 m²/s²
0-3 km storm-relative helicity
299 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.

The office that day

Everything else NWS Baltimore/Washington issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 15, 2:40 PM EDTSevere Thunderstorm WarningLWXShenandoah50 min
Jun 15, 3:05 PM EDTSevere Thunderstorm WarningLWXWarren50 min
Jun 15, 3:24 PM EDTSevere Thunderstorm WarningLWXFauquier51 min
Jun 15, 3:33 PM EDTSevere Thunderstorm WarningLWXAlbemarle27 min
Jun 15, 3:48 PM EDTSevere Thunderstorm WarningLWXWarren32 min
Jun 15, 4:14 PM EDTSevere Thunderstorm WarningLWXFauquier51 min
Jun 15, 4:21 PM EDTFlash Flood WarningLWXShenandoah, Warren94 min
Jun 15, 4:40 PM EDTSevere Thunderstorm WarningLWXFairfax, Prince William50 min
Jun 15, 4:47 PM EDTSevere Thunderstorm WarningLWXLoudoun48 min
Jun 15, 4:57 PM EDTSevere Thunderstorm WarningLWXFairfax, City of Fairfax48 min
Jun 15, 4:57 PM EDTSevere Thunderstorm WarningLWXArlington, City of Falls Church48 min
Jun 15, 5:11 PM EDTSevere Thunderstorm WarningLWXCity of Alexandria49 min
Jun 15, 5:13 PM EDTSevere Thunderstorm WarningLWXFauquier47 min
Jun 15, 5:18 PM EDTSevere Thunderstorm WarningLWXPrince William, City of Manassas, City of Manassas Park47 min
Jun 15, 5:27 PM EDTSevere Thunderstorm WarningLWXPrince William48 min
Jun 15, 5:38 PM EDTSevere Thunderstorm WarningLWXRappahannock62 min
Jun 15, 6:45 PM EDTSevere Thunderstorm WarningLWXPrince William, Stafford50 min
Jun 15, 5:11 PM EDTSevere Thunderstorm WarningLWXMontgomery49 min
Jun 15, 5:27 PM EDTSevere Thunderstorm WarningLWXCharles48 min
Jun 15, 5:56 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Calvert49 min
Jun 15, 6:26 PM EDTSevere Thunderstorm WarningLWXCharles49 min
Jun 15, 7:15 PM EDTSevere Thunderstorm WarningLWXCharles30 min
Jun 15, 7:33 PM EDTSevere Thunderstorm WarningLWXSaint Mary's47 min
Jun 15, 7:47 PM EDTSevere Thunderstorm WarningLWXCalvert33 min
Jun 15, 4:26 PM EDTFlash Flood WarningLWXHampshire64 min

Nearby

Severe Thunderstorm Warnings in Maryland, 1998Every severe thunderstorm warning 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.