Alert archive / Pennsylvania / Special Weather Statements in 2011

Special Weather Statement, NWS State College, PA

August 1, 2011Adams County, Pennsylvania

NWS State College, PA issued this special weather statement at Aug 1, 2011, 8:31 PM EDT for Adams County, Pennsylvania. It was in force for 29 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 1, 2011, 8:31 PM EDT (00:31 UTC)
Expired: Aug 1, 2011, 9:00 PM EDT
In force: 29 min
Issued by: NWS State College, PA

County Adams County, PA

The radar

The Sterling radar (KLWX), 107 km from the middle of the area, began a volume at 00:33 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, 0.5 hours before the alert went out and 110 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: 644 J/kg
Mixed-layer CIN: -121 J/kg
Mixed-layer LCL: 1789 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 114 m²/s²
0-3 km storm-relative helicity: 124 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

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 State College, PA wrote its last area forecast discussion before this special weather statement went out at Aug 1, 7:23 PM EDT, 1 hour 8 minutes earlier.

Area forecast discussion, Aug 1, 7:23 PM EDT, 1 hour 8 minutes before

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Hazardous weather outlook, Aug 1, 5:32 PM EDT, 2 hours 59 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE STATE COLLEGE PA
532 PM EDT MON AUG 1 2011

PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053-
056>059-063>066-022200-
WARREN-MCKEAN-POTTER-ELK-CAMERON-NORTHERN CLINTON-CLEARFIELD-
NORTHERN CENTRE-SOUTHERN CENTRE-CAMBRIA-BLAIR-HUNTINGDON-MIFFLIN-
JUNIATA-SOMERSET-BEDFORD-FULTON-FRANKLIN-TIOGA-NORTHERN LYCOMING-
SULLIVAN-SOUTHERN CLINTON-SOUTHERN LYCOMING-UNION-SNYDER-MONTOUR-
NORTHUMBERLAND-COLUMBIA-PERRY-DAUPHIN-SCHUYLKILL-LEBANON-CUMBERLAND-
ADAMS-YORK-LANCASTER-
532 PM EDT MON AUG 1 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL PENNSYLVANIA.

.DAY ONE...TONIGHT.

SCATTERED THUNDERSTORMS WILL BE ACROSS THE AREA EARLY THIS
EVENING. SOME STORMS WILL BE ON THE STRONG SIDE...WITH THE
POTENTIAL FOR A FEW STORMS TO BE SEVERE. THE MAIN THREAT
WILL BE DANGEROUS LIGHTNING...TORRENTIAL RAIN...AND GUSTY
WINDS. HOWEVER...SOME STORMS MAY CONTAIN HAIL. THE ACTIVITY WILL
SLOWLY WEAKEN LATER THIS EVENING.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

A POTENT UPPER AIR DISTURBANCE WILL TRACK SOUTHEAST ACROSS THE
GREAT LAKES AND INTO PENNSYLVANIA LATE TUESDAY NIGHT AND
WEDNESDAY. LOCALLY SEVERE THUNDERSTORMS AND HEAVY RAIN WILL BE
POSSIBLE TUESDAY NIGHT INTO WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME...BUT SPOTTERS
SHOULD REPORT WIND DAMAGE...AND HAIL OCCURRENCES.

MARTIN

In the hours before

Special weather statement, Aug 1, 5:21 PM EDT, 3 hours 10 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
521 PM EDT MON AUG 1 2011

PAZ028-056-057-059-063-066-012145-
CUMBERLAND PA-DAUPHIN PA-JUNIATA PA-LANCASTER PA-LEBANON PA-PERRY PA-
521 PM EDT MON AUG 1 2011

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT DAUPHIN...EAST CENTRAL
JUNIATA...EASTERN PERRY...LEBANON...NORTH CENTRAL LANCASTER AND
NORTHEASTERN CUMBERLAND COUNTIES...

AT 515 PM EDT...A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM
THOMPSONTOWN TO WILLIAMSTOWN...MOVING SOUTHEAST AT 20 MPH.

WIND GUSTS TO 50 MPH AND NICKEL SIZE HAIL ARE POSSIBLE WITH THESE
STORMS. THESE STORMS WILL BE NEAR MONTGOMERY FERRY AROUND 530 PM...
NEWPORT AROUND 540 PM AND HARPER TAVERN AROUND 550 PM.

LAT...LON 4019 7615 4027 7718 4064 7732 4055 7653

FORECASTER: KF

Local storm report, Aug 1, 6:08 PM EDT, 2 hours 23 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE STATE COLLEGE PA
608 PM EDT MON AUG 01 2011

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

0235 PM     HAIL             1 S LAPORTE             41.40N  76.49W
08/01/2011  M1.75 INCH       SULLIVAN           PA   TRAINED SPOTTER

            LOST LAKE ON ROUTE 220

0237 PM     HAIL             LAPORTE                 41.42N  76.49W
08/01/2011  M1.00 INCH       SULLIVAN           PA   CO-OP OBSERVER

0254 PM     TSTM WND DMG     CARLISLE                40.20N  77.20W
08/01/2011                   CUMBERLAND         PA   911 CALL CENTER

            TREES DOWN WITH STRUCTURAL DAMAGE REPORTED ON TERMINAL
            RD

0304 PM     HAIL             1 SSE WOOLRICH          41.18N  77.37W
08/01/2011  M1.00 INCH       CLINTON            PA   911 CALL CENTER

0315 PM     HAIL             SIDDONSBURG             40.15N  76.96W
08/01/2011  M1.00 INCH       YORK               PA   PUBLIC

0320 PM     HAIL             JERSEY SHORE            41.20N  77.27W
08/01/2011  M1.00 INCH       LYCOMING           PA   TRAINED SPOTTER

0350 PM     TSTM WND DMG     VALLEY VIEW             40.66N  76.53W
08/01/2011                   SCHUYLKILL         PA   911 CALL CENTER

            NUMEROUS LARGE TREES DOWN

0410 PM     TSTM WND DMG     1 NE PINE GROVE         40.56N  76.37W
08/01/2011                   SCHUYLKILL         PA   911 CALL CENTER

            LARGE TREES DOWN

0420 PM     TSTM WND DMG     2 E POTTSVILLE          40.68N  76.17W
08/01/2011                   SCHUYLKILL         PA   911 CALL CENTER

            NUMEROUS LARGE TREES DOWN

0425 PM     TSTM WND DMG     MILL HALL               41.10N  77.49W
08/01/2011                   CLINTON            PA   911 CALL CENTER

            TREES DOWN ON A HOME IN CAMELOT ESTATES

0430 PM     TSTM WND DMG     MILL HALL               41.10N  77.49W
08/01/2011                   CLINTON            PA   911 CALL CENTER

            WIDESPREAD TREES AND WIRES DOWN AROUND MILL HALL

&&

EVENT NUMBER CTP1100327 CTP1100328 CTP1100329 CTP1100332 CTP1100330
CTP1100331 CTP1100333 CTP1100334 CTP1100335 CTP1100337 CTP1100336

KREKELER

Special weather statement, Aug 1, 6:09 PM EDT, 2 hours 22 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
609 PM EDT MON AUG 1 2011

PAZ012-018-019-026>028-045-012245-
HUNTINGDON PA-JUNIATA PA-MIFFLIN PA-NORTHERN CENTRE PA-
NORTHERN CLINTON PA-SOUTHERN CENTRE PA-SOUTHERN CLINTON PA-
609 PM EDT MON AUG 1 2011

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT CENTRAL CENTRE...
CENTRAL JUNIATA...NORTHEASTERN HUNTINGDON...NORTHERN MIFFLIN AND
SOUTH CENTRAL CLINTON COUNTIES...

AT 602 PM EDT...A LINE OF STRONG THUNDERSTORMS WAS LOCATED FROM 7
MILES NORTHEAST OF SNOW SHOE TO ROCK SPRINGS...MOVING EAST AT 30 MPH.

WIND GUSTS TO 50 MPH AND NICKEL SIZE HAIL ARE POSSIBLE WITH THESE
STORMS. THESE STORMS WILL BE NEAR PLEASANT GAP AROUND 620 PM...BEECH
CREEK AROUND 630 PM...MILL HALL AROUND 640 PM AND REBERSBURG AROUND
650 PM.

LAT...LON 4110 7740 4054 7744 4058 7798 4121 7794

FORECASTER: KF

Special weather statement, Aug 1, 6:44 PM EDT, 1 hour 47 minutes before

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Special weather statement, Aug 1, 7:29 PM EDT, 1 hour 2 minutes before

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Local storm report, Aug 1, 7:56 PM EDT, 35 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 1, 8:02 PM EDT	Special Weather Statement	CTP	Adams, Cumberland, Huntingdon, Mifflin	28 min
Aug 1, 10:20 PM EDT	Special Weather Statement	CTP	Tioga	55 min
Aug 1, 11:10 PM EDT	Special Weather Statement	CTP	Sullivan	65 min

Nearby

Special Weather Statements in Pennsylvania, 2011 Every special weather statement in 2011

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.