Alert archive / Pennsylvania / Wind Advisories in 2021

Wind Advisory 5, NWS State College, PA

December 2, 20214 counties in Pennsylvania

NWS State College, PA issued this wind advisory at Dec 2, 2021, 12:08 PM EST for 4 counties in Pennsylvania. It took effect at Dec 2, 2021, 4:00 PM EST. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Dec 2, 2021, 12:08 PM EST (17:08 UTC)
In effect from
Dec 2, 2021, 4:00 PM EST
Expired
Dec 3, 2021, 4:14 AM EST
In force
12 hr
Issued by
NWS State College, PA

Counties Bedford County, PA, Franklin County, PA, Fulton County, PA, Somerset County, PA

The radar

The State College radar (KCCX), 111 km from the middle of the area, began a volume at 17:09 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 12:00Z, 5.1 hours before the alert went out and 138 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-pSkew-T log-p diagram, Washington/Dulle, VA at 12:00Z on 2021-12-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 12:00Z on 2021-12-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 132 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1399 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
132 m²/s²
0-3 km storm-relative helicity
91 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

205 
WWUS71 KCTP 021708
NPWCTP

URGENT - WEATHER MESSAGE
National Weather Service State College PA
1208 PM EST Thu Dec 2 2021

PAZ033>036-031100-
/O.NEW.KCTP.WI.Y.0005.211202T2100Z-211203T1100Z/
Somerset-Bedford-Fulton-Franklin-
Including the cities of Somerset, Bedford, McConnellsburg, 
and Chambersburg
1208 PM EST Thu Dec 2 2021

...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 6 AM EST
FRIDAY...

* WHAT...West winds 15 to 30 mph with gusts up to 50 mph.

* WHERE...Somerset, Bedford, Fulton and Franklin Counties.

* WHEN...From 4 PM this afternoon to 6 AM EST Friday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

* ADDITIONAL DETAILS...Highest wind gusts are likely this evening
  through late tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

For high wind safety information, visit weather.gov/wind.

The latest forecast information can be found on the
NWS State College Facebook page and Twitter @NWSStateCollege,
or on the web at weather.gov/ctp.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/ctp
2 follow-up statements
080 
WWUS71 KCTP 030252
NPWCTP

URGENT - WEATHER MESSAGE
National Weather Service State College PA
952 PM EST Thu Dec 2 2021

PAZ033>036-031100-
/O.CON.KCTP.WI.Y.0005.000000T0000Z-211203T1100Z/
Somerset-Bedford-Fulton-Franklin-
Including the cities of Somerset, Bedford, McConnellsburg, 
and Chambersburg
952 PM EST Thu Dec 2 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM EST FRIDAY...

* WHAT...Northwest winds 10 to 20 mph with gusts up to 50 mph.

* WHERE...Somerset, Bedford, Fulton and Franklin Counties.

* WHEN...Until 6 AM EST Friday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

For high wind safety information, visit weather.gov/wind.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/ctp
790 
WWUS71 KCTP 030914
NPWCTP

URGENT - WEATHER MESSAGE
National Weather Service State College PA
414 AM EST Fri Dec 3 2021

PAZ033>036-031015-
/O.CAN.KCTP.WI.Y.0005.000000T0000Z-211203T1100Z/
Somerset-Bedford-Fulton-Franklin-
Including the cities of Somerset, Bedford, McConnellsburg, 
and Chambersburg
414 AM EST Fri Dec 3 2021

...WIND ADVISORY IS CANCELLED...

Northwest winds in the wake of a cold front have decreased to 10
to 15 mph early this morning with peak gusts under 25 mph. The 
threat for strong wind gusts over 45 mph this morning has ended.

$$

For more information from the National Weather Service visit
http://weather.gov/ctp

Nearby

Wind Advisories in Pennsylvania, 2021Every wind advisory 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.