Alert archive / Pennsylvania / Special Weather Statements in 2018

Special Weather Statement, NWS State College, PA

September 7, 2018Fulton County, Pennsylvania

NWS State College, PA issued this special weather statement at Sep 7, 2018, 5:13 PM EDT for Fulton County, Pennsylvania. It was in force for 17 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
Sep 7, 2018, 5:13 PM EDT (21:13 UTC)
Expired
Sep 7, 2018, 5:30 PM EDT
In force
17 min
Issued by
NWS State College, PA

County Fulton County, PA

The radar

The Sterling radar (KLWX), 99 km from the middle of the area, began a volume at 21:16 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 12:00Z, 9.2 hours before the alert went out and 105 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 2018-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 143 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 2018-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 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
143 J/kg
Mixed-layer CIN
-163 J/kg
Mixed-layer LCL
1035 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
17 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

As transmitted.

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The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 2:16 PM EDTSpecial Weather StatementCTPBedford29 min
Sep 7, 2:45 PM EDTSpecial Weather StatementCTPBlair30 min
Sep 7, 2:48 PM EDTSpecial Weather StatementCTPBedford27 min
Sep 7, 3:14 PM EDTSpecial Weather StatementCTPBlair31 min
Sep 7, 3:18 PM EDTSpecial Weather StatementCTPBedford, Fulton42 min
Sep 7, 3:37 PM EDTSpecial Weather StatementCTPSomerset38 min
Sep 7, 3:44 PM EDTSpecial Weather StatementCTPBlair46 min
Sep 7, 3:51 PM EDTSpecial Weather StatementCTPAdams39 min
Sep 7, 3:58 PM EDTSpecial Weather StatementCTPBedford47 min
Sep 7, 4:26 PM EDTSpecial Weather StatementCTPFulton49 min
Sep 7, 5:32 PM EDTSpecial Weather StatementCTPFulton13 min
Sep 7, 7:59 PM EDTAreal Flood AdvisoryCTPSomerset4 hr

Nearby

Special Weather Statements in Pennsylvania, 2018Every special weather statement in 2018

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.