Alert archive / Maryland / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 196, NWS Baltimore/Washington

July 16, 2000Anne Arundel County, Maryland

NWS Baltimore/Washington issued this severe thunderstorm warning at Jul 16, 2000, 1:00 PM EDT for Anne Arundel County, Maryland. It was in force for 45 min. 2 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 16, 2000, 1:00 PM EDT (17:00 UTC)
Expired
Jul 16, 2000, 1:45 PM EDT
In force
45 min
Issued by
NWS Baltimore/Washington
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Anne Arundel County, MD

The radar

The Sterling radar (KLWX), 79 km from the middle of the area, began a volume at 17:01 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

TimeReportWhereRemark
Jul 16, 1:30 PM EDTThunderstorm WindCountywide, MDTrees and power lines were downed.
Jul 16, 1:30 PM EDTHail 1Annapolis, MDQuarter sized hail fell on Route 2.

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 12:00Z, 5.0 hours before the alert went out and 72 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 2000-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 780 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 2000-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 square meters per square second.1939Sfc1 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
780 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
885 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
53 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.

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 Jul 16, 9:55 AM EDT, 3 hours 5 minutes earlier.

Area forecast discussion, Jul 16, 9:55 AM EDT, 3 hours 5 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 6:41 PM EDTSevere Thunderstorm WarningLWXFairfax, Loudoun49 min
Jul 16, 6:11 AM EDTSevere Thunderstorm WarningLWXCalvert, Saint Mary's49 min
Jul 16, 12:16 PM EDTSevere Thunderstorm WarningLWXAnne Arundel, Prince George's44 min
Jul 16, 2:26 PM EDTSevere Thunderstorm WarningLWXCalvert49 min
Jul 16, 4:30 PM EDTSevere Thunderstorm WarningLWXWashington60 min
Jul 16, 5:35 PM EDTSevere Thunderstorm WarningLWXFrederick55 min
Jul 16, 5:23 PM EDTSevere Thunderstorm WarningLWXBerkeley, Jefferson67 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2000Every severe thunderstorm warning in 2000

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.