Alert archive / Pennsylvania / Special Weather Statements in 2019

Special Weather Statement, NWS State College, PA

August 2, 2019Blair County, Pennsylvania

NWS State College, PA issued this special weather statement at Aug 2, 2019, 2:01 PM EDT for Blair County, Pennsylvania. It was in force for 59 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 2, 2019, 2:01 PM EDT (18:01 UTC)
Expired: Aug 2, 2019, 3:00 PM EDT
In force: 59 min
Issued by: NWS State College, PA

County Blair County, PA

The radar

The State College radar (KCCX), 36 km from the middle of the area, began a volume at 18:05 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

Pittsburgh, PA (KPIT), launched 12:00Z, 6.0 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: 36 J/kg
Mixed-layer CIN: -147 J/kg
Mixed-layer LCL: 1497 m above ground
0-6 km bulk shear: 4 kt
0-1 km storm-relative helicity: -2 m²/s²
0-3 km storm-relative helicity: 26 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 2, 10:44 AM EDT, 3 hours 17 minutes earlier.

Area forecast discussion, Aug 2, 10:44 AM EDT, 3 hours 17 minutes before

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Hazardous weather outlook, Aug 2, 4:30 AM EDT, 9 hours 31 minutes before

Hazardous Weather Outlook
National Weather Service State College PA
430 AM EDT Fri Aug 2 2019

PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053-
056>059-063>066-030830-
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-
430 AM EDT Fri Aug 2 2019

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Today and tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Aug 2, 11:58 AM EDT, 2 hours 3 minutes before

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Special weather statement, Aug 2, 12:25 PM EDT, 1 hour 36 minutes before

Special Weather Statement
National Weather Service State College PA
1225 PM EDT Fri Aug 2 2019

PAZ019-045-021700-
Southern Clinton PA-Southern Centre PA-
1225 PM EDT Fri Aug 2 2019

...A STRONG THUNDERSTORM WILL AFFECT PARTS OF CENTRE AND CLINTON
COUNTIES UNTIL 100 PM EDT...

At 1224 PM EDT, Doppler radar indicated a strong thunderstorm near
Madisonburg. This storm was nearly stationary.

Wind gusts 40 to 50 mph and penny size hail are possible.

This strong thunderstorm will be near...
  Lamar around 1250 PM EDT.
  Madisonburg, Aaronsburg and Rebersburg around 100 PM EDT.

Other locations impacted by this storm include Howard.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4103 7737 4081 7746 4079 7752 4088 7770
      4105 7764
TIME...MOT...LOC 1624Z 287DEG 3KT 4095 7759

Jurewicz

Special weather statement, Aug 2, 12:42 PM EDT, 1 hour 19 minutes before

Special Weather Statement
National Weather Service State College PA
1242 PM EDT Fri Aug 2 2019

PAZ036-063-021730-
Franklin PA-Cumberland PA-
1242 PM EDT Fri Aug 2 2019

...A STRONG THUNDERSTORM WILL AFFECT PARTS OF FRANKLIN AND CUMBERLAND
COUNTIES UNTIL 130 PM EDT...

At 1242 PM EDT, Doppler radar indicated a strong thunderstorm over
Shippensburg, moving north at 15 mph.

Wind gusts of up to 55 mph and nickel size hail are possible.

Locations impacted include...
Shippensburg, Scotland, Newville, Walnut Bottom, Orrstown and
Shippensburg University.

LAT...LON 3996 7762 4019 7760 4022 7756 4021 7733
      3995 7748
TIME...MOT...LOC 1642Z 180DEG 14KT 4002 7754

Colbert

Special weather statement, Aug 2, 1:12 PM EDT, 49 minutes before

Special Weather Statement
National Weather Service State College PA
112 PM EDT Fri Aug 2 2019

PAZ045-021745-
Southern Clinton PA-
112 PM EDT Fri Aug 2 2019

...A STRONG THUNDERSTORM WILL AFFECT PARTS OF CLINTON COUNTY UNTIL
145 PM EDT...

At 111 PM EDT, Doppler radar indicated a strong thunderstorm over
Mackeyville, moving northeast at 10 mph.

Wind gusts 40 to 50 mph and nickel size hail are possible.

This strong thunderstorm will be near...
  Castanea around 115 PM EDT.
  Dunnstown around 130 PM EDT.
  McElhattan, Avis and Carroll around 145 PM EDT.

Other locations impacted by this storm include Loganton and Lock
Haven University.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4120 7730 4118 7729 4118 7728 4108 7718
      4107 7714 4105 7714 4099 7735 4097 7746
      4110 7756 4115 7747 4121 7732
TIME...MOT...LOC 1711Z 241DEG 9KT 4106 7742

Jurewicz

Special weather statement, Aug 2, 1:53 PM EDT, 8 minutes before

Special Weather Statement
National Weather Service State College PA
153 PM EDT Fri Aug 2 2019

PAZ012-041-045-021830-
Southern Clinton PA-Northern Clinton PA-Northern Lycoming PA-
153 PM EDT Fri Aug 2 2019

...STRONG THUNDERSTORMS WILL AFFECT PARTS OF LYCOMING AND CLINTON
COUNTIES UNTIL 230 PM EDT...

At 152 PM EDT, Doppler radar indicated strong thunderstorms near
Waterville, moving north northeast at 10 to 15 mph.

Wind gusts 40 to 50 mph and penny size hail are possible.

Locations impacted include...
Avis, Waterville, Little Pine State Park, Cammal and English Center.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4122 7731 4121 7731 4118 7731 4115 7755
      4143 7767 4148 7728
TIME...MOT...LOC 1752Z 170DEG 6KT 4124 7745

Jurewicz

Special weather statement, Aug 2, 2:01 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service State College PA
201 PM EDT Fri Aug 2 2019

PAZ024>026-021900-
Blair PA-Cambria PA-Huntingdon PA-
201 PM EDT Fri Aug 2 2019

...STRONG THUNDERSTORMS WILL AFFECT PARTS OF HUNTINGDON...BLAIR...AND
CAMBRIA COUNTIES UNTIL 300 PM EDT...

At 201 PM EDT, Doppler radar indicated strong thunderstorms along a
line extending from Blandburg to Franklinville. Movement was
northeast at 10 mph.

Wind gusts of up to 55 mph and nickel size hail are possible.

Locations impacted include...
Tyrone, Bald Eagle, Bellwood, Warriors Mark, Tipton, Blandburg,
Spruce Creek, Birmingham, Franklinville, Prince Gallitzin State Park
and Delgrosso's Amusement Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4073 7853 4073 7835 4074 7824 4074 7813
      4070 7796 4059 7811 4062 7863
TIME...MOT...LOC 1801Z 234DEG 9KT 4066 7840 4065 7813

Colbert

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 2, 11:00 AM EDT	Special Weather Statement	CTP	Clearfield	60 min
Aug 2, 11:17 AM EDT	Severe Thunderstorm Warning	CTP	Clearfield	58 min
Aug 2, 11:58 AM EDT	Special Weather Statement	CTP	Clearfield	62 min
Aug 2, 12:22 PM EDT	Areal Flood Advisory	CTP	Clearfield	3 hr
Aug 2, 12:25 PM EDT	Special Weather Statement	CTP	Centre	35 min
Aug 2, 12:42 PM EDT	Special Weather Statement	CTP	Cumberland	48 min
Aug 2, 1:12 PM EDT	Special Weather Statement	CTP	Union	33 min
Aug 2, 1:27 PM EDT	Severe Thunderstorm Warning	CTP	Clinton, Lycoming	33 min
Aug 2, 1:48 PM EDT	Areal Flood Advisory	CTP	Blair, Cambria	3 hr
Aug 2, 1:53 PM EDT	Special Weather Statement	CTP	Clinton	37 min
Aug 2, 2:28 PM EDT	Areal Flood Advisory	CTP	Bedford	3 hr
Aug 2, 2:45 PM EDT	Special Weather Statement	CTP	Blair	45 min
Aug 2, 3:11 PM EDT	Areal Flood Advisory	CTP	Blair, Cambria	3 hr
Aug 2, 3:24 PM EDT	Flash Flood Warning	CTP	Blair	3 hr
Aug 2, 3:45 PM EDT	Areal Flood Advisory	CTP	Centre, Mifflin, Snyder, Union	3 hr
Aug 2, 4:02 PM EDT	Areal Flood Advisory	CTP	Columbia, Northumberland, Schuylkill	3 hr
Aug 2, 4:50 PM EDT	Areal Flood Advisory	CTP	Montour, Northumberland, Snyder, Union	3 hr
Aug 2, 5:01 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Montour, Northumberland, Schuylkill	59 min
Aug 2, 5:24 PM EDT	Special Weather Statement	CTP	Schuylkill	36 min
Aug 2, 5:27 PM EDT	Flash Flood Warning	CTP	Columbia, Montour, Northumberland	3 hr
Aug 2, 5:42 PM EDT	Special Weather Statement	CTP	Columbia, Montour	33 min
Aug 2, 5:52 PM EDT	Special Weather Statement	CTP	Montour	23 min
Aug 2, 5:57 PM EDT	Special Weather Statement	CTP	Schuylkill	33 min
Aug 2, 6:03 PM EDT	Areal Flood Advisory	CTP	Schuylkill	3 hr
Aug 2, 7:11 PM EDT	Special Weather Statement	CTP	Lebanon	34 min

Nearby

Special Weather Statements in Pennsylvania, 2019 Every special weather statement in 2019

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.