Alert archive / Maryland / Special Weather Statements in 2012

Special Weather Statement, NWS Baltimore/Washington

August 2, 2012Saint Mary's County, Maryland

NWS Baltimore/Washington issued this special weather statement at Aug 2, 2012, 5:12 PM EDT for Saint Mary's County, Maryland. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 2, 2012, 5:12 PM EDT (21:12 UTC)
Expired: Aug 2, 2012, 5:45 PM EDT
In force: 33 min
Issued by: NWS Baltimore/Washington

County Saint Mary's County, MD

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 9.2 hours before the alert went out and 89 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: 1789 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 806 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 73 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 2, 3:18 PM EDT, 1 hour 54 minutes earlier.

Area forecast discussion, Aug 2, 3:18 PM EDT, 1 hour 54 minutes before

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Hazardous weather outlook, Aug 2, 4:16 PM EDT, 56 minutes before

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In the hours before

Special weather statement, Aug 2, 4:00 PM EDT, 1 hour 12 minutes before

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Special weather statement, Aug 2, 4:28 PM EDT, 44 minutes before

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Special weather statement, Aug 2, 4:30 PM EDT, 42 minutes before

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Local storm report, Aug 2, 4:46 PM EDT, 26 minutes before

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Special weather statement, Aug 2, 4:52 PM EDT, 20 minutes before

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Special weather statement, Aug 2, 5:12 PM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 1, 8:42 PM EDT	Severe Thunderstorm Warning	LWX	Shenandoah	38 min
Aug 1, 8:54 PM EDT	Coastal Flood Advisory	LWX	Arlington, City of Alexandria, City of Falls Church	14 hr
Aug 1, 10:10 PM EDT	Special Weather Statement	LWX	Prince William, City of Manassas, City of Manassas Park	35 min
Aug 2, 4:02 PM EDT	Special Marine Warning	LWX		69 min
Aug 2, 4:30 PM EDT	Special Weather Statement	LWX	King George	30 min
Aug 2, 4:32 PM EDT	Special Marine Warning	LWX		28 min
Aug 2, 4:40 PM EDT	Special Marine Warning	LWX		65 min
Aug 2, 5:38 PM EDT	Special Marine Warning	LWX		52 min
Aug 2, 6:10 PM EDT	Special Marine Warning	LWX		69 min
Aug 2, 2:40 PM EDT	Special Weather Statement	LWX	Prince George's	35 min
Aug 2, 2:55 PM EDT	Severe Thunderstorm Warning	LWX	Anne Arundel, Calvert, Prince George's	18 min
Aug 2, 3:39 PM EDT	Special Weather Statement	LWX	Howard	36 min
Aug 2, 4:00 PM EDT	Special Weather Statement	LWX	Anne Arundel	30 min
Aug 2, 4:28 PM EDT	Special Weather Statement	LWX	City of Baltimore	32 min
Aug 2, 4:52 PM EDT	Special Weather Statement	LWX	City of Baltimore	23 min
Aug 1, 8:20 PM EDT	Special Weather Statement	LWX	Hardy	25 min

Nearby

Special Weather Statements in Maryland, 2012 Every special weather statement in 2012

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.