Alert archive / Pennsylvania / Heat Advisories in 2016

Heat Advisory 3, NWS State College, PA

August 16, 20164 counties in Pennsylvania

NWS State College, PA issued this heat advisory at Aug 16, 2016, 3:24 AM EDT for 4 counties in Pennsylvania. It took effect at Aug 16, 2016, 12:00 PM EDT. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued: Aug 16, 2016, 3:24 AM EDT (07:24 UTC)
In effect from: Aug 16, 2016, 12:00 PM EDT
Expired: Aug 16, 2016, 4:12 PM EDT
In force: 4 hr
Issued by: NWS State College, PA

Counties Dauphin County, PA, Lancaster County, PA, Lebanon County, PA, York County, PA

The radar

The State College radar (KCCX), 147 km from the middle of the area, began a volume at 07:25 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 00:00Z, 7.4 hours before the alert went out and 155 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: 71 J/kg
Mixed-layer CIN: -161 J/kg
Mixed-layer LCL: 1248 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: -13 m²/s²
0-3 km storm-relative helicity: 50 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this heat advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS State College, PA wrote its last area forecast discussion before this heat advisory went out at Aug 16, 2:45 AM EDT, 39 minutes earlier.

Area forecast discussion, Aug 16, 2:45 AM EDT, 39 minutes before

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The office that day

Everything else NWS State College, PA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 16, 1:33 PM EDT	Special Weather Statement	CTP	Franklin, Fulton, Huntingdon	42 min
Aug 16, 2:05 PM EDT	Special Weather Statement	CTP	Franklin	55 min
Aug 16, 2:36 PM EDT	Special Weather Statement	CTP	Lycoming	39 min
Aug 16, 2:52 PM EDT	Severe Thunderstorm Warning	CTP	Lycoming, Sullivan	53 min
Aug 16, 2:56 PM EDT	Special Weather Statement	CTP	Adams, Cumberland, Dauphin, Juniata, Perry, Snyder and 1 more	64 min
Aug 16, 3:04 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, York	56 min
Aug 16, 3:13 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Snyder, Union	47 min
Aug 16, 3:25 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Lycoming, Sullivan	65 min
Aug 16, 3:30 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Dauphin, Perry	45 min
Aug 16, 3:44 PM EDT	Severe Thunderstorm Warning	CTP	Sullivan	46 min
Aug 16, 3:56 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lancaster, Lebanon, York	64 min
Aug 16, 4:27 PM EDT	Special Weather Statement	CTP	York	33 min
Aug 16, 4:28 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour, Northumberland, Schuylkill	62 min
Aug 16, 4:35 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	70 min
Aug 16, 5:26 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	34 min
Aug 16, 6:37 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Clearfield	53 min
Aug 16, 6:44 PM EDT	Special Weather Statement	CTP	Somerset	61 min
Aug 16, 7:07 PM EDT	Severe Thunderstorm Warning	CTP	Somerset	53 min
Aug 16, 7:26 PM EDT	Severe Thunderstorm Warning	CTP	Blair, Centre, Clearfield, Huntingdon	34 min
Aug 16, 7:34 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Clearfield	26 min
Aug 16, 7:59 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clearfield, Clinton, Huntingdon	31 min

Nearby

Heat Advisories in Pennsylvania, 2016 Every heat advisory in 2016

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.