Alert archive / Pennsylvania / Special Weather Statements in 2021

Special Weather Statement, NWS State College, PA

July 6, 2021McKean County, Warren County, Pennsylvania

NWS State College, PA issued this special weather statement at Jul 6, 2021, 2:21 PM EDT for McKean County, Warren County, Pennsylvania. It was in force for 54 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 6, 2021, 2:21 PM EDT (18:21 UTC)
Expired: Jul 6, 2021, 3:15 PM EDT
In force: 54 min
Issued by: NWS State College, PA

Counties McKean County, PA, Warren County, PA

The radar

The State College radar (KCCX), 105 km from the middle of the area, began a volume at 18:23 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

Buffalo Intl Airport, NY (KBUF), launched 12:00Z, 6.4 hours before the alert went out and 132 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: 997 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 868 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 78 m²/s²
0-3 km storm-relative helicity: 64 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

As transmitted.

285 
WWUS81 KCTP 061821
SPSCTP

Special Weather Statement
National Weather Service State College PA
221 PM EDT Tue Jul 6 2021
 
PAZ004-005-061915-
McKean PA-Warren PA-
221 PM EDT Tue Jul 6 2021

...STRONG THUNDERSTORMS WILL AFFECT MUCH OF MCKEAN AND WARREN 
COUNTIES...

At 217 PM EDT, Doppler radar indicated strong thunderstorms over 
northern parts of McKean and Warren counties.  The strongest 
storm was just east of the city of Warren, moving east at 50 mph.

Any of these storms could produce nickel size hail and wind gusts of 
50 to 55 mph. The storms will move generally to the east, but 
additional storms could form as well. 

Locations impacted include...
Warren, Bradford, Kane, Allegany State Park, Port Allegany,
Sheffield, Columbus, Youngsville, Smethport, Wetmore, Russell,
Shinglehouse, Betula, Spring Creek, Rew, Crosby, Ludlow, Marshburg,
Kinzua Bridge State Park and Scandia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

&&

LAT...LON 4200 7820 4162 7820 4162 7841 4160 7842
      4160 7848 4163 7849 4163 7961 4200 7960
TIME...MOT...LOC 1817Z 263DEG 49KT 4185 7908 

$$

Dangelo

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 6, 11:38 AM EDT	Special Weather Statement	CTP	Warren	52 min
Jul 6, 11:59 AM EDT	Special Weather Statement	CTP	McKean	46 min
Jul 6, 12:45 PM EDT	Special Weather Statement	CTP	Potter	45 min
Jul 6, 1:26 PM EDT	Special Weather Statement	CTP	Tioga	34 min
Jul 6, 1:51 PM EDT	Special Weather Statement	CTP	Warren	24 min
Jul 6, 2:49 PM EDT	Severe Thunderstorm Warning	CTP	McKean, Warren	56 min
Jul 6, 3:01 PM EDT	Special Weather Statement	CTP	Sullivan	44 min
Jul 6, 3:17 PM EDT	Special Weather Statement	CTP	Sullivan	43 min
Jul 6, 3:22 PM EDT	Severe Thunderstorm Warning	CTP	Sullivan	23 min
Jul 6, 3:36 PM EDT	Severe Thunderstorm Warning	CTP	Columbia, Sullivan	24 min
Jul 6, 3:57 PM EDT	Special Weather Statement	CTP	Dauphin	33 min
Jul 6, 4:05 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lebanon	40 min
Jul 6, 4:31 PM EDT	Special Weather Statement	CTP	Elk	29 min
Jul 6, 4:41 PM EDT	Severe Thunderstorm Warning	CTP	Dauphin, Lancaster, Lebanon	33 min
Jul 6, 4:48 PM EDT	Special Weather Statement	CTP	Schuylkill	27 min
Jul 6, 6:52 PM EDT	Special Weather Statement	CTP	McKean	23 min
Jul 6, 6:59 PM EDT	Heat Advisory	CTP	Adams, Cumberland, Dauphin, Franklin, Lancaster, Lebanon and 2 more	24 hr

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.