Alert archive / Pennsylvania / Special Weather Statements in 2010

Special Weather Statement, NWS Philadelphia/Mount Holly

June 13, 2010Bucks County, Montgomery County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Jun 13, 2010, 4:59 PM EDT for Bucks County, Montgomery County, Pennsylvania. It was in force for 61 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: Jun 13, 2010, 4:59 PM EDT (20:59 UTC)
Expired: Jun 13, 2010, 6:00 PM EDT
In force: 61 min
Issued by: NWS Philadelphia/Mount Holly

Counties Bucks County, PA, Montgomery County, PA

The radar

The Philadelphia radar (KDIX), 77 km from the middle of the area, began a volume at 21:02 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

Brookhaven, NY (KOKX), launched 12:00Z, 9.0 hours before the alert went out and 210 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: 26 J/kg
Mixed-layer CIN: -247 J/kg
Mixed-layer LCL: 594 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.2

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 Philadelphia/Mount Holly wrote its last area forecast discussion before this special weather statement went out at Jun 13, 3:01 PM EDT, 1 hour 58 minutes earlier.

Area forecast discussion, Jun 13, 3:01 PM EDT, 1 hour 58 minutes before

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Hazardous weather outlook, Jun 13, 2:48 PM EDT, 2 hours 11 minutes before

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In the hours before

Special weather statement, Jun 13, 2:19 PM EDT, 2 hours 40 minutes before

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Special weather statement, Jun 13, 2:58 PM EDT, 2 hours 1 minute before

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Special weather statement, Jun 13, 3:16 PM EDT, 1 hour 43 minutes before

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Special weather statement, Jun 13, 3:27 PM EDT, 1 hour 32 minutes before

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Special weather statement, Jun 13, 3:44 PM EDT, 1 hour 15 minutes before

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Special weather statement, Jun 13, 4:59 PM EDT, 0 minutes before

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The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 12, 9:54 PM EDT	Special Weather Statement	PHI	Sussex	2 hr
Jun 13, 1:01 PM EDT	Special Weather Statement	PHI	Hunterdon	89 min
Jun 13, 1:39 PM EDT	Special Weather Statement	PHI	Camden	61 min
Jun 13, 1:48 PM EDT	Special Weather Statement	PHI	Sussex	62 min
Jun 13, 2:06 PM EDT	Special Weather Statement	PHI	Camden, Gloucester	59 min
Jun 13, 2:19 PM EDT	Special Weather Statement	PHI	Atlantic	46 min
Jun 13, 2:58 PM EDT	Special Weather Statement	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	2 hr
Jun 13, 3:16 PM EDT	Special Weather Statement	PHI	Burlington	74 min
Jun 13, 3:27 PM EDT	Special Weather Statement	PHI	Gloucester	78 min
Jun 13, 5:09 PM EDT	Special Weather Statement	PHI	Cape May	46 min
Jun 13, 6:29 PM EDT	Special Weather Statement	PHI	Camden, Gloucester, Salem	61 min
Jun 12, 8:20 PM EDT	Special Weather Statement	PHI	Carbon, Northampton	85 min
Jun 13, 2:14 PM EDT	Special Weather Statement	PHI	Bucks	61 min
Jun 13, 6:04 PM EDT	Special Weather Statement	PHI	Philadelphia	61 min
Jun 13, 6:34 PM EDT	Special Weather Statement	PHI	Berks	56 min
Jun 13, 3:44 PM EDT	Special Weather Statement	PHI	Caroline, Kent, Queen Anne's	91 min

Nearby

Special Weather Statements in Pennsylvania, 2010 Every special weather statement in 2010

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.