Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 109, NWS State College, PA

July 13, 2014Dauphin County, Schuylkill County, Pennsylvania

NWS State College, PA issued this severe thunderstorm warning at Jul 13, 2014, 8:32 PM EDT for Dauphin County, Schuylkill County, Pennsylvania. It was in force for 58 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: Jul 13, 2014, 8:32 PM EDT (00:32 UTC)
Expired: Jul 13, 2014, 9:30 PM EDT
In force: 58 min
Issued by: NWS State College, PA
Area: Storm-based polygon

Counties Dauphin County, PA, Schuylkill County, PA

The radar

The State College radar (KCCX), 133 km from the middle of the area, began a volume at 00:34 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
Jul 13, 4:06 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 0.5 hours before the alert went out and 195 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: 569 J/kg
Mixed-layer CIN: -52 J/kg
Mixed-layer LCL: 1600 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 94 m²/s²
0-3 km storm-relative helicity: 172 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 severe thunderstorm warning 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 severe thunderstorm warning went out at Jul 13, 7:20 PM EDT, 1 hour 12 minutes earlier.

Area forecast discussion, Jul 13, 7:20 PM EDT, 1 hour 12 minutes before

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Hazardous weather outlook, Jul 13, 7:58 PM EDT, 34 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE STATE COLLEGE PA
758 PM EDT SUN JUL 13 2014

PAZ024>028-033>036-041-042-046-049>053-056>059-063>066-150000-
CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-JUNIATA-SOMERSET-BEDFORD-FULTON-
FRANKLIN-NORTHERN LYCOMING-SULLIVAN-SOUTHERN LYCOMING-UNION-SNYDER-
MONTOUR-NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-
CUMBERLAND-ADAMS-YORK-LANCASTER-
758 PM EDT SUN JUL 13 2014

...SEVERE THUNDERSTORM WATCH 414 IN EFFECT UNTIL 11 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO
WEATHER.GOV/STATECOLLEGE ON THE INTERNET FOR MORE
INFORMATION ABOUT THE FOLLOWING HAZARDS.

   SEVERE THUNDERSTORM WATCH.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

SCATTERED STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE AGAIN MONDAY
AFTERNOON AND EVENING AS A WAVE OF SURFACE LOW PRESSURE AND UPPER
AIR DISTURBANCE MOVES EAST ACROSS THE REGION.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

PAZ012-017>019-045-150000-
NORTHERN CLINTON-CLEARFIELD-NORTHERN CENTRE-SOUTHERN CENTRE-
SOUTHERN CLINTON-
758 PM EDT SUN JUL 13 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...TONIGHT.

THE PROBABILITY OF WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

SCATTERED STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE AGAIN MONDAY
AFTERNOON AND EVENING AS A WAVE OF SURFACE LOW PRESSURE AND UPPER
AIR DISTURBANCE MOVES EAST ACROSS THE REGION.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

PAZ004>006-010-011-037-150000-
WARREN-MCKEAN-POTTER-ELK-CAMERON-TIOGA-
758 PM EDT SUN JUL 13 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...TONIGHT.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

THE PROBABILITY OF WIDESPREAD HAZARDOUS WEATHER IS LOW.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

LAMBERT

In the hours before

Local storm report, Jul 13, 7:41 PM EDT, 51 minutes before

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Special weather statement, Jul 13, 7:43 PM EDT, 49 minutes before

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Special weather statement, Jul 13, 7:52 PM EDT, 40 minutes before

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Local storm report, Jul 13, 8:22 PM EDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
822 PM EDT SUN JUL 13 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0757 PM     TSTM WND DMG     MECHANICSVILLE          40.97N  76.59W
07/13/2014                   MONTOUR            PA   911 CALL CENTER

            TREES AND WIRES DOWN ON ROAD

&&

EVENT NUMBER CTP1400250

COLBERT

Local storm report, Jul 13, 8:28 PM EDT, 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
828 PM EDT SUN JUL 13 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0805 PM     TSTM WND DMG     4 SW NEW BLOOMFIELD     40.38N  77.24W
07/13/2014                   PERRY              PA   911 CALL CENTER

            TREES DOWN

&&

EVENT NUMBER CTP1400251

LA CORTE

Local storm report, Jul 13, 8:31 PM EDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
831 PM EDT SUN JUL 13 2014

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0820 PM     TSTM WND DMG     GREENCASTLE             39.79N  77.73W
07/13/2014                   FRANKLIN           PA   TRAINED SPOTTER

            LARGE BRANCH ACROSS ROADWAY

&&

EVENT NUMBER CTP1400252

COLBERT

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 13, 8:01 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lebanon, Perry	59 min
Jul 13, 8:10 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, Franklin, York	80 min
Jul 13, 8:53 PM EDT	Areal Flood Advisory	CTP	Cumberland, Dauphin, Perry, York	3 hr
Jul 13, 8:59 PM EDT	Severe Thunderstorm Warning	CTP	Cumberland, Dauphin, Lancaster, Lebanon, York	61 min
Jul 14, 3:42 AM EDT	Flash Flood Watch	CTP	Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 3 more	17 hr
Jul 14, 12:59 PM EDT	Special Weather Statement	CTP	Blair, Cambria, Huntingdon, Mifflin	76 min
Jul 14, 1:39 PM EDT	Areal Flood Advisory	CTP	Bedford, Blair, Cambria, Somerset	111 min
Jul 14, 1:45 PM EDT	Special Weather Statement	CTP	Adams	45 min
Jul 14, 1:59 PM EDT	Areal Flood Advisory	CTP	Huntingdon	2 hr
Jul 14, 2:01 PM EDT	Special Weather Statement	CTP	Perry	44 min
Jul 14, 2:39 PM EDT	Special Weather Statement	CTP	Dauphin	36 min
Jul 14, 2:45 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lebanon, Perry	45 min
Jul 14, 3:13 PM EDT	Special Weather Statement	CTP	Lebanon	47 min
Jul 14, 4:08 PM EDT	Special Weather Statement	CTP	Lancaster	37 min
Jul 14, 4:25 PM EDT	Special Weather Statement	CTP	Adams, Cumberland, Franklin	35 min
Jul 14, 5:40 PM EDT	Areal Flood Advisory	CTP	Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 1 more	3 hr
Jul 14, 6:51 PM EDT	Flash Flood Warning	CTP	Lancaster, York	3 hr

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2014 Every severe thunderstorm warning in 2014

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.