Alert archive / Pennsylvania / Special Weather Statements in 2021

Special Weather Statement, NWS State College, PA

July 16, 2021Cumberland County, Pennsylvania

NWS State College, PA issued this special weather statement at Jul 16, 2021, 9:11 PM EDT for Cumberland County, Pennsylvania. It was in force for 34 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: Jul 16, 2021, 9:11 PM EDT (01:11 UTC)
Expired: Jul 16, 2021, 9:45 PM EDT
In force: 34 min
Issued by: NWS State College, PA

County Cumberland County, PA

The radar

The State College radar (KCCX), 92 km from the middle of the area, began a volume at 01:13 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, 1.2 hours before the alert went out and 143 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: 182 J/kg
Mixed-layer CIN: -41 J/kg
Mixed-layer LCL: 2058 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 36 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 Jul 16, 7:41 PM EDT, 1 hour 30 minutes earlier.

Area forecast discussion, Jul 16, 7:41 PM EDT, 1 hour 30 minutes before

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Hazardous weather outlook, Jul 16, 4:55 PM EDT, 4 hours 16 minutes before

Hazardous Weather Outlook
National Weather Service State College PA
455 PM EDT Fri Jul 16 2021

PAZ017>019-024>028-033>036-049-050-056>059-063>066-172100-
Clearfield-Northern Centre-Southern Centre-Cambria-Blair-Huntingdon-
Mifflin-Juniata-Somerset-Bedford-Fulton-Franklin-Union-Snyder-Perry-
Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-Lancaster-
455 PM EDT Fri Jul 16 2021

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...Tonight.

Isolated to scattered strong to severe thunderstorms with gusty
winds and hail are possible through this evening.

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

Scattered strong to severe thunderstorms with gusty winds and hail
are possible Saturday afternoon and evening. Locally very heavy rain
of over 2 inches may occur in less than one hour where a few
thunderstorms train over the same location.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

PAZ004>006-010>012-037-041-042-045-046-051>053-172100-
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Tioga-
Northern Lycoming-Sullivan-Southern Clinton-Southern Lycoming-
Montour-Northumberland-Columbia-
455 PM EDT Fri Jul 16 2021

...FLASH FLOOD WATCH IN EFFECT THROUGH SATURDAY 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.

   Flash Flood Watch.

Scattered strong to severe thunderstorms with gusty winds and hail
are possible through this evening.

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

Please listen to NOAA Weather Radio or go to
weather.gov/StateCollege on the internet for more
information about the following hazards.

   Flash Flood Watch.

Scattered strong to severe thunderstorms with gusty winds and hail
are possible Saturday afternoon and evening. Locally very heavy rain
of over 2 inches may occur in less than one hour where a few
thunderstorms train over the same location.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report significant hazardous weather.

In the hours before

Special weather statement, Jul 16, 6:01 PM EDT, 3 hours 10 minutes before

Special Weather Statement
National Weather Service State College PA
601 PM EDT Fri Jul 16 2021

PAZ019-026-027-045-162230-
Southern Clinton PA-Huntingdon PA-Mifflin PA-Southern Centre PA-
601 PM EDT Fri Jul 16 2021

...STRONG THUNDERSTORMS WILL AFFECT PARTS OF SOUTHERN CLINTON...
HUNTINGDON...MIFFLIN...AND SOUTHERN CENTRE COUNTIES UNTIL 630 PM
EDT...

At 601 PM EDT, Doppler radar indicated strong thunderstorms along a
line extending from near Glen Union to Lamar to Whipple Dam State
Park. Movement was east at 25 mph.

Pea size hail and wind gusts up to 50 mph are possible.

Locations impacted include...
Lock Haven, Carroll, Woodward, Boalsburg, Pleasant Gap, Lamar,
Burnham, Zion, Mill Hall, Milroy, Avis, Dunnstown, Flemington, Centre
Hall, Castanea, Yeagertown, Millheim, Blanchard, Reedsville and
Aaronsburg.

LAT...LON 4120 7730 4118 7729 4118 7727 4108 7718
      4107 7714 4105 7714 4085 7736 4082 7735
      4064 7750 4065 7790 4098 7765 4106 7769
      4121 7732
TIME...MOT...LOC 2201Z 260DEG 21KT 4119 7765 4099 7756 4068 7785

Evanego

Special weather statement, Jul 16, 6:31 PM EDT, 2 hours 40 minutes before

Special Weather Statement
National Weather Service State College PA
631 PM EDT Fri Jul 16 2021

PAZ019-027-045-046-049-050-162300-
Southern Lycoming PA-Southern Clinton PA-Union PA-Mifflin PA-
Snyder PA-Southern Centre PA-
631 PM EDT Fri Jul 16 2021

...STRONG THUNDERSTORMS WILL AFFECT PARTS OF SOUTHERN LYCOMING...
SOUTHERN CLINTON...UNION...MIFFLIN...SNYDER...AND SOUTHERN CENTRE
COUNTIES UNTIL 700 PM EDT...

At 631 PM EDT, Doppler radar indicated strong thunderstorms along a
line extending from Carroll to Milroy. Movement was east at 25 mph.

Pea size hail and wind gusts up to 50 mph are possible.

Locations impacted include...
Mifflinburg, Carroll, Woodward, Montgomery, Milroy, Penns Creek,
Beaver Springs, Aaronsburg, Allenwood, Vicksburg, Coburn,
Troxelville, Elimsport, Weikert, R.B. Winter State Park,
Snyder-Middleswart State Park, Forest Hill, Sand Bridge State Park,
Reeds Gap State Park and Belltown.

LAT...LON 4122 7680 4117 7684 4116 7687 4115 7689
      4113 7690 4109 7689 4075 7713 4068 7765
      4112 7725
TIME...MOT...LOC 2231Z 250DEG 20KT 4105 7722 4071 7757

Evanego

Local storm report, Jul 16, 6:48 PM EDT, 2 hours 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
648 PM EDT FRI JUL 16 2021

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

0624 PM     FLASH FLOOD      2 NW FORKSVILLE         41.51N 76.62W
07/16/2021                   SULLIVAN           PA   911 CALL CENTER

            WATER COMPLETELY COVERING THE ROAD IN
            ELKLAND TOWNSHIP.

&&

AW

Special weather statement, Jul 16, 6:52 PM EDT, 2 hours 19 minutes before

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Special weather statement, Jul 16, 6:57 PM EDT, 2 hours 14 minutes before

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Special weather statement, Jul 16, 9:11 PM EDT, 0 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
Jul 16, 10:39 PM EDT	Areal Flood Advisory	CTP	Cumberland, Dauphin, Juniata, Northumberland, Perry, Snyder	2 hr
Jul 17, 4:33 AM EDT	Special Weather Statement	CTP	Warren	57 min
Jul 17, 6:36 AM EDT	Special Weather Statement	CTP	Warren	69 min
Jul 17, 7:46 AM EDT	Special Weather Statement	CTP	Elk, McKean	59 min
Jul 17, 10:23 AM EDT	Special Weather Statement	CTP	McKean	37 min
Jul 17, 12:01 PM EDT	Areal Flood Advisory	CTP	McKean	119 min
Jul 17, 12:35 PM EDT	Special Weather Statement	CTP	Potter	40 min
Jul 17, 12:55 PM EDT	Areal Flood Advisory	CTP	Warren	2 hr
Jul 17, 1:23 PM EDT	Special Weather Statement	CTP	Clinton	37 min
Jul 17, 1:33 PM EDT	Special Weather Statement	CTP	Lancaster	27 min
Jul 17, 1:48 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	42 min
Jul 17, 1:55 PM EDT	Flash Flood Warning	CTP	Cameron, Elk, McKean, Potter, Warren	3 hr
Jul 17, 2:13 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, Lebanon	47 min
Jul 17, 2:29 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	46 min
Jul 17, 2:46 PM EDT	Special Weather Statement	CTP	Cambria	29 min
Jul 17, 2:47 PM EDT	Areal Flood Advisory	CTP	Lancaster, Lebanon, Schuylkill, York	2 hr
Jul 17, 2:52 PM EDT	Severe Thunderstorm Warning	CTP	Schuylkill	38 min
Jul 17, 2:56 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster, York	34 min
Jul 17, 3:02 PM EDT	Severe Thunderstorm Warning	CTP	Lebanon, Schuylkill	43 min
Jul 17, 3:04 PM EDT	Severe Thunderstorm Warning	CTP	Cambria, Clearfield, Somerset	56 min
Jul 17, 3:06 PM EDT	Special Weather Statement	CTP	Blair	24 min
Jul 17, 3:14 PM EDT	Severe Thunderstorm Warning	CTP	Lancaster	61 min
Jul 17, 3:17 PM EDT	Flash Flood Warning Considerable damage threat	CTP	Lycoming, Tioga	3 hr
Jul 17, 3:35 PM EDT	Special Weather Statement	CTP	Centre	25 min
Jul 17, 3:42 PM EDT	Special Weather Statement	CTP	York	33 min
Jul 17, 3:45 PM EDT	Special Weather Statement	CTP	Huntingdon	30 min
Jul 17, 3:48 PM EDT	Special Weather Statement	CTP	Lancaster	27 min
Jul 17, 3:52 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Clearfield	23 min
Jul 17, 4:03 PM EDT	Special Weather Statement	CTP	Dauphin	27 min
Jul 17, 4:05 PM EDT	Severe Thunderstorm Warning	CTP	Centre, Huntingdon, Juniata, Mifflin	55 min
Jul 17, 4:07 PM EDT	Areal Flood Advisory	CTP	Adams, Cumberland, Dauphin, Lancaster, Lebanon, York	2 hr
Jul 17, 4:14 PM EDT	Special Weather Statement	CTP	Dauphin	31 min
Jul 17, 4:14 PM EDT	Special Weather Statement	CTP	Tioga	46 min
Jul 17, 4:23 PM EDT	Special Weather Statement	CTP	Clinton	37 min
Jul 17, 4:24 PM EDT	Special Weather Statement	CTP	Dauphin	36 min
Jul 17, 4:32 PM EDT	Special Weather Statement	CTP	Lycoming	28 min
Jul 17, 4:34 PM EDT	Special Weather Statement	CTP	Centre	26 min
Jul 17, 4:38 PM EDT	Areal Flood Advisory	CTP	Clinton, Lycoming	2 hr
Jul 17, 4:44 PM EDT	Areal Flood Advisory	CTP	Bedford, Cumberland, Franklin, Fulton, Huntingdon, Juniata and 3 more	2 hr
Jul 17, 4:45 PM EDT	Special Weather Statement	CTP	Dauphin	30 min
Jul 17, 4:47 PM EDT	Special Weather Statement	CTP	Tioga	28 min
Jul 17, 4:50 PM EDT	Special Weather Statement	CTP	Somerset	25 min
Jul 17, 4:50 PM EDT	Severe Thunderstorm Warning	CTP	Juniata, Mifflin, Northumberland, Snyder, Union	55 min
Jul 17, 4:53 PM EDT	Areal Flood Advisory	CTP	Cameron, Elk, McKean, Potter, Warren	66 min
Jul 17, 4:56 PM EDT	Areal Flood Advisory	CTP	Columbia, Dauphin, Lycoming, Montour, Northumberland, Schuylkill and 3 more	61 min
Jul 17, 4:58 PM EDT	Special Weather Statement	CTP	Clinton	32 min
Jul 17, 5:02 PM EDT	Severe Thunderstorm Warning	CTP	Clinton, Lycoming	43 min
Jul 17, 5:08 PM EDT	Special Weather Statement	CTP	Franklin	37 min
Jul 17, 5:14 PM EDT	Flash Flood Warning Considerable damage threat	CTP	Lycoming, Sullivan	3 hr
Jul 17, 5:16 PM EDT	Special Weather Statement	CTP	Dauphin	29 min
Jul 17, 5:20 PM EDT	Areal Flood Advisory	CTP	Cumberland, Dauphin, Juniata, Lebanon, Perry	2 hr
Jul 17, 5:27 PM EDT	Special Weather Statement	CTP	Sullivan	33 min
Jul 17, 5:30 PM EDT	Special Weather Statement	CTP	Franklin	30 min
Jul 17, 5:42 PM EDT	Flash Flood Warning Considerable damage threat	CTP	Adams, Cumberland, Franklin, Fulton, Huntingdon, Perry	111 min
Jul 17, 5:44 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Cumberland, Dauphin, Juniata, Lycoming, Montour and 6 more	61 min
Jul 17, 5:56 PM EDT	Flash Flood Warning Considerable damage threat	CTP	Columbia, Cumberland, Dauphin, Juniata, Lebanon, Lycoming and 7 more	3 hr
Jul 17, 6:09 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Cumberland, Dauphin, Franklin, York	36 min
Jul 17, 6:22 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Lycoming, Sullivan	28 min
Jul 17, 6:44 PM EDT	Severe Thunderstorm Warning	CTP	Adams, Dauphin, Lancaster, Lebanon, York	46 min
Jul 17, 6:57 PM EDT	Special Weather Statement	CTP	Schuylkill	33 min
Jul 17, 7:07 PM EDT	Areal Flood Advisory	CTP	Adams, York	2 hr
Jul 17, 7:34 PM EDT	Severe Thunderstorm Warning	CTP	Adams, York	56 min

Nearby

Special Weather Statements in Pennsylvania, 2021 Every special weather statement in 2021

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.