Alert archive / Maryland / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 201, NWS Baltimore/Washington

June 13, 20194 counties in Maryland

NWS Baltimore/Washington issued this severe thunderstorm warning at Jun 13, 2019, 6:04 PM EDT for 4 counties in Maryland. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 13, 2019, 6:04 PM EDT (22:04 UTC)
Expired
Jun 13, 2019, 6:45 PM EDT
In force
41 min
Issued by
NWS Baltimore/Washington
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Calvert County, MD, Charles County, MD, Prince George's County, MD, Saint Mary's County, MD

The radar

The Sterling radar (KLWX), 83 km from the middle of the area, began a volume at 22:07 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.

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 10.1 hours before the alert went out and 76 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 2019-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 24 joules per kilogram.LCLLFCEL10008507005003002001001 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 2019-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 54 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
24 J/kg
Mixed-layer CIN
-197 J/kg
Mixed-layer LCL
521 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
54 m²/s²
0-3 km storm-relative helicity
26 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 13, 8:04 AM EDTSmall Craft AdvisoryLWX4 hr
Jun 13, 4:28 PM EDTSevere Thunderstorm WarningLWXCulpeper, Fauquier, Prince William, Stafford47 min
Jun 13, 4:32 PM EDTSpecial Marine WarningLWX118 min
Jun 13, 4:40 PM EDTSevere Thunderstorm WarningLWXLoudoun50 min
Jun 13, 4:47 PM EDTSevere Thunderstorm WarningLWXArlington, Fairfax, Fauquier, Loudoun, Prince William, City of Fairfax and 3 more43 min
Jun 13, 5:04 PM EDTSevere Thunderstorm WarningLWXKing George, Spotsylvania, Stafford, City of Fredericksburg41 min
Jun 13, 5:04 PM EDTSevere Thunderstorm WarningLWXFairfax, Prince William, Stafford41 min
Jun 13, 5:52 PM EDTSpecial Marine WarningLWX82 min
Jun 13, 5:55 PM EDTSpecial Marine WarningLWX2 hr
Jun 13, 5:57 PM EDTSpecial Marine WarningLWX2 hr
Jun 12, 11:45 PM EDTCoastal Flood AdvisoryLWXAnne Arundel, Baltimore, City of Baltimore7 hr
Jun 13, 6:06 AM EDTCoastal Flood AdvisoryLWXSaint Mary's8 hr
Jun 13, 3:49 PM EDTSevere Thunderstorm WarningLWXWashington41 min
Jun 13, 4:17 PM EDTSevere Thunderstorm WarningLWXFrederick, Washington43 min
Jun 13, 4:59 PM EDTSevere Thunderstorm WarningLWXCarroll, Frederick46 min
Jun 13, 5:13 PM EDTSevere Thunderstorm WarningLWXBaltimore, Carroll, Frederick, Howard, Montgomery47 min
Jun 13, 5:22 PM EDTSevere Thunderstorm WarningLWXCharles38 min
Jun 13, 5:34 PM EDTSevere Thunderstorm WarningLWXCharles, Prince George's26 min
Jun 13, 5:44 PM EDTSevere Thunderstorm WarningLWXBaltimore, Carroll, Harford46 min
Jun 13, 6:14 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Baltimore, Howard, Montgomery, City of Baltimore46 min
Jun 13, 6:21 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford, City of Baltimore39 min
Jun 13, 7:30 PM EDTSevere Thunderstorm WarningLWXCalvert15 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2019Every severe thunderstorm warning in 2019

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.