Alert archive / Maryland / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 178, NWS Baltimore/Washington

June 16, 2008Washington County, Maryland; Jefferson County, West Virginia

NWS Baltimore/Washington issued this severe thunderstorm warning at Jun 16, 2008, 10:46 PM EDT for Washington County, Maryland; Jefferson County, West Virginia. It was in force for 32 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 16, 2008, 10:46 PM EDT (02:46 UTC)
Expired: Jun 16, 2008, 11:18 PM EDT
In force: 32 min
Issued by: NWS Baltimore/Washington
Area: Storm-based polygon

Counties Washington County, MD, Jefferson County, WV

The radar

The Sterling radar (KLWX), 61 km from the middle of the area, began a volume at 02:47 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jun 16, 1:21 PM EDT	Severe Thunderstorm Watch	SPC	10 hr

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 2.8 hours before the alert went out and 220 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 287 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 1675 m above ground
0-6 km bulk shear: 58 kt
0-1 km storm-relative helicity: -71 m²/s²
0-3 km storm-relative helicity: -69 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -1.5

Open this sounding in Storm Lab

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 Jun 16, 7:39 PM EDT, 3 hours 7 minutes earlier.

Area forecast discussion, Jun 16, 7:39 PM EDT, 3 hours 7 minutes before

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Hazardous weather outlook, Jun 16, 7:37 PM EDT, 3 hours 9 minutes before

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In the hours before

Local storm report, Jun 16, 5:49 PM EDT, 4 hours 57 minutes before

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Local storm report, Jun 16, 5:55 PM EDT, 4 hours 51 minutes before

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Local storm report, Jun 16, 6:10 PM EDT, 4 hours 36 minutes before

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Local storm report, Jun 16, 6:11 PM EDT, 4 hours 35 minutes before

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Local storm report, Jun 16, 6:24 PM EDT, 4 hours 22 minutes before

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Local storm report, Jun 16, 7:02 PM EDT, 3 hours 44 minutes before

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      <p id="message1">
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      </p>
      <p id="message2">
        Please try again in a few minutes.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 16, 10:26 PM EDT	Severe Thunderstorm Warning	LWX	Frederick, City of Winchester	51 min
Jun 16, 11:12 PM EDT	Severe Thunderstorm Warning	LWX	Loudoun	25 min
Jun 17, 12:43 AM EDT	Special Marine Warning	LWX		47 min
Jun 16, 9:30 PM EDT	Severe Thunderstorm Warning	LWX	Allegany	33 min
Jun 16, 11:33 PM EDT	Severe Thunderstorm Warning	LWX	Howard, Montgomery	13 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2008 Severe Thunderstorm Warnings in West Virginia, 2008 Every severe thunderstorm warning in 2008

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.