Alert archive / Pennsylvania / High Wind Watches in 2021

High Wind Watch 1, NWS State College, PA

March 24, 202114 counties in Pennsylvania

NWS State College, PA issued this high wind watch at Mar 24, 2021, 1:45 PM EDT for 14 counties in Pennsylvania. It took effect at Mar 26, 2021, 6:00 AM EDT. It was in force for .

The area

The counties it named.

The facts

Issued
Mar 24, 2021, 1:45 PM EDT (17:45 UTC)
In effect from
Mar 26, 2021, 6:00 AM EDT
Expired
Mar 25, 2021, 2:29 PM EDT
In force
Issued by
NWS State College, PA

Counties Bedford County, PA, Blair County, PA, Cambria County, PA, Cameron County, PA, Centre County, PA, Clearfield County, PA, Clinton County, PA, Elk County, PA, Fulton County, PA, Huntingdon County, PA, McKean County, PA, Potter County, PA, Somerset County, PA, Warren County, PA

The radar

The State College radar (KCCX), 31 km from the middle of the area, began a volume at 17:44 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, 5.8 hours before the alert went out and 156 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, Pittsburgh, PA at 12:00Z on 2021-03-24Temperature 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, Pittsburgh, PA at 12:00Z on 2021-03-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 302 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
855 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
302 m²/s²
0-3 km storm-relative helicity
303 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

232 
WWUS71 KCTP 241745
NPWCTP

URGENT - WEATHER MESSAGE
National Weather Service State College PA
145 PM EDT Wed Mar 24 2021

PAZ004-005-010-017-024-033-251000-
/O.NEW.KCTP.HW.A.0001.210326T1000Z-210326T2200Z/
Warren-McKean-Elk-Clearfield-Cambria-Somerset-
Including the cities of Warren, Bradford, St. Marys, Ridgway, 
DuBois, Clearfield, Johnstown, and Somerset
145 PM EDT Wed Mar 24 2021

...HIGH WIND WATCH IN EFFECT FROM FRIDAY MORNING THROUGH EARLY FRIDAY
EVENING...

* WHAT...Southwest winds 25 to 35 mph with gusts up to 60 mph 
  possible.

* WHERE...Warren, McKean, Elk, Clearfield, Cambria and Somerset 
  Counties.

* WHEN...From Friday morning through early Friday evening.

* IMPACTS...Damaging winds could blow down trees and power lines.
  Widespread power outages are possible. Travel could be
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

For high wind safety and preparedness 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.

&&

$$
MC/MS
5 follow-up statements
063 
WWUS71 KCTP 250544
NPWCTP

URGENT - WEATHER MESSAGE
National Weather Service State College PA
144 AM EDT Thu Mar 25 2021

PAZ036-056>059-063>066-251300-
/O.NEW.KCTP.FG.Y.0002.210325T0600Z-210325T1300Z/
Franklin-Perry-Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-
Lancaster-
Including the cities of Chambersburg, Newport, Harrisburg, 
Hershey, Pottsville, Lebanon, Carlisle, Gettysburg, York, 
and Lancaster
144 AM EDT Thu Mar 25 2021

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING...

* WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...Franklin, Perry, Dauphin, Schuylkill, Lebanon, 
  Cumberland, Adams, York and Lancaster Counties.

* WHEN...Until 9 AM EDT this morning.

* IMPACTS...Hazardous driving conditions due to low visibility.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your low-beam headlights, and leave
plenty of distance ahead of you.

For dense fog safety information, visit weather.gov/fog.

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.

&&

$$

PAZ004-005-010-017-024-033-251745-
/O.CON.KCTP.HW.A.0001.210326T1000Z-210326T2200Z/
Warren-McKean-Elk-Clearfield-Cambria-Somerset-
Including the cities of Warren, Bradford, St. Marys, Ridgway, 
DuBois, Clearfield, Johnstown, and Somerset
144 AM EDT Thu Mar 25 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH
FRIDAY AFTERNOON...

* WHAT...Southwest winds 15 to 25 mph with gusts up to 60 mph 
  possible.

* WHERE...McKean, Warren, Somerset, Elk, Clearfield and Cambria 
  Counties.

* WHEN...From Friday morning through Friday afternoon.

* IMPACTS...Damaging winds could blow down tree limbs and power 
  lines, causing scattered power outages. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

For high wind safety and preparedness 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
836 
WWUS71 KCTP 250746
NPWCTP

URGENT - WEATHER MESSAGE
National Weather Service State College PA
346 AM EDT Thu Mar 25 2021

PAZ036-056>059-063>066-251300-
/O.CON.KCTP.FG.Y.0002.000000T0000Z-210325T1300Z/
Franklin-Perry-Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-
Lancaster-
Including the cities of Chambersburg, Newport, Harrisburg, 
Hershey, Pottsville, Lebanon, Carlisle, Gettysburg, York, 
and Lancaster
346 AM EDT Thu Mar 25 2021

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS
MORNING...

* WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...Schuylkill, Perry, Dauphin, Cumberland, Lebanon, 
  Lancaster, York, Adams and Franklin Counties.

* WHEN...Until 9 AM EDT this morning.

* IMPACTS...Hazardous driving conditions due to low visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your low-beam headlights, and leave
plenty of distance ahead of you.

For dense fog safety information, visit weather.gov/fog.

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.

&&

$$

PAZ006-011-012-018-019-025-026-034-035-045-252100-
/O.EXA.KCTP.HW.A.0001.210326T1000Z-210326T2200Z/
Potter-Cameron-Northern Clinton-Northern Centre-Southern Centre-
Blair-Huntingdon-Bedford-Fulton-Southern Clinton-
Including the cities of Coudersport, Emporium, Renovo, 
Philipsburg, State College, Altoona, Huntingdon, Mount Union, 
Bedford, McConnellsburg, and Lock Haven
346 AM EDT Thu Mar 25 2021

...HIGH WIND WATCH IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY
AFTERNOON...

* WHAT...Southwest winds 20 to 30 mph with gusts up to 60 mph 
  possible.

* WHERE...Potter, Cameron, Northern Clinton, Northern Centre, 
  Southern Centre, Blair, Huntingdon, Bedford, Fulton and 
  Southern Clinton Counties.

* WHEN...From Friday morning through Friday afternoon.

* IMPACTS...Wind gusts could blow down tree limbs and power lines,
  causing scattered power outages. Travel could be difficult, 
  especially for high profile vehicles.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

For high wind safety and preparedness 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.

&&

$$

PAZ004-005-010-017-024-033-252100-
/O.CON.KCTP.HW.A.0001.210326T1000Z-210326T2200Z/
Warren-McKean-Elk-Clearfield-Cambria-Somerset-
Including the cities of Warren, Bradford, St. Marys, Ridgway, 
DuBois, Clearfield, Johnstown, and Somerset
346 AM EDT Thu Mar 25 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH
FRIDAY AFTERNOON...

* WHAT...Southwest winds 20 to 30 mph with gusts up to 60 mph 
  possible.

* WHERE...Clearfield, Somerset, Elk, McKean, Warren and Cambria 
  Counties.

* WHEN...From Friday morning through Friday afternoon.

* IMPACTS...Wind gusts could blow down tree limbs and power lines,
  causing scattered power outages. Travel could be difficult, 
  especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

For high wind safety and preparedness 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
130 
WWUS71 KCTP 251311
NPWCTP

URGENT - WEATHER MESSAGE
National Weather Service State College PA
911 AM EDT Thu Mar 25 2021

PAZ036-056>059-063>066-251415-
/O.EXP.KCTP.FG.Y.0002.000000T0000Z-210325T1300Z/
Franklin-Perry-Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-
Lancaster-
Including the cities of Chambersburg, Newport, Harrisburg, 
Hershey, Pottsville, Lebanon, Carlisle, Gettysburg, York, 
and Lancaster
911 AM EDT Thu Mar 25 2021

...DENSE FOG ADVISORY HAS EXPIRED...

Visibility will continue to improve this morning. 

$$

PAZ004>006-010>012-017>019-024>026-033>035-045-260115-
/O.CON.KCTP.HW.A.0001.210326T1000Z-210326T2200Z/
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield-
Northern Centre-Southern Centre-Cambria-Blair-Huntingdon-Somerset-
Bedford-Fulton-Southern Clinton-
Including the cities of Warren, Bradford, Coudersport, St. Marys,
Ridgway, Emporium, Renovo, DuBois, Clearfield, Philipsburg, 
State College, Johnstown, Altoona, Huntingdon, Mount Union, 
Somerset, Bedford, McConnellsburg, and Lock Haven
911 AM EDT Thu Mar 25 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH
FRIDAY AFTERNOON...

* WHAT...Southwest winds 20 to 30 mph with gusts up to 55 mph 
  possible.

* WHERE...Portions of west central Pennsylvania.

* WHEN...From Friday morning through Friday afternoon.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

For high wind safety and preparedness 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
592 
WWUS71 KCTP 251551
NPWCTP

URGENT - WEATHER MESSAGE
National Weather Service State College PA
1151 AM EDT Thu Mar 25 2021

PAZ027-028-036-037-041-042-046-049>053-056>059-063>066-260400-
/O.NEW.KCTP.WI.Y.0002.210326T1400Z-210326T2200Z/
Mifflin-Juniata-Franklin-Tioga-Northern Lycoming-Sullivan-
Southern Lycoming-Union-Snyder-Montour-Northumberland-Columbia-
Perry-Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-Lancaster-
Including the cities of Lewistown, Mifflintown, Chambersburg, 
Mansfield, Wellsboro, Trout Run, Laporte, Williamsport, 
Lewisburg, Selinsgrove, Danville, Sunbury, Shamokin, Bloomsburg, 
Berwick, Newport, Harrisburg, Hershey, Pottsville, Lebanon, 
Carlisle, Gettysburg, York, and Lancaster
1151 AM EDT Thu Mar 25 2021

...WIND ADVISORY IN EFFECT FROM 10 AM TO 6 PM EDT FRIDAY...

* WHAT...Southwest winds 20 to 25 mph with gusts up to 50 mph 
  expected.

* WHERE...Portions of central Pennsylvania.

* WHEN...From 10 AM to 6 PM EDT 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.

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.

&&

$$

PAZ004>006-010>012-017>019-024>026-033>035-045-260400-
/O.CON.KCTP.HW.A.0001.210326T1000Z-210326T2200Z/
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield-
Northern Centre-Southern Centre-Cambria-Blair-Huntingdon-Somerset-
Bedford-Fulton-Southern Clinton-
Including the cities of Warren, Bradford, Coudersport, St. Marys,
Ridgway, Emporium, Renovo, DuBois, Clearfield, Philipsburg, 
State College, Johnstown, Altoona, Huntingdon, Mount Union, 
Somerset, Bedford, McConnellsburg, and Lock Haven
1151 AM EDT Thu Mar 25 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH
FRIDAY AFTERNOON...

* WHAT...Southwest winds 20 to 30 mph with gusts up to 60 mph 
  possible.

* WHERE...Portions of central Pennsylvania.

* WHEN...From Friday morning through Friday afternoon.

* IMPACTS...Damaging winds could blow down trees and power 
  lines. Widespread power outages are possible. Travel could be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

For high wind safety and preparedness 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
364 
WWUS71 KCTP 251829
NPWCTP

URGENT - WEATHER MESSAGE
National Weather Service State College PA
229 PM EDT Thu Mar 25 2021

PAZ024-025-033-034-260930-
/O.UPG.KCTP.HW.A.0001.210326T1000Z-210326T2200Z/
/O.NEW.KCTP.HW.W.0001.210326T1000Z-210326T2200Z/
Cambria-Blair-Somerset-Bedford-
Including the cities of Johnstown, Altoona, Somerset, and Bedford
229 PM EDT Thu Mar 25 2021

...HIGH WIND WARNING IN EFFECT FROM 6 AM TO 6 PM EDT FRIDAY...

* WHAT...Southwest winds 20 to 30 mph with gusts up to 60 mph 
  expected.

* WHERE...Cambria, Blair, Somerset and Bedford Counties.

* WHEN...From 6 AM to 6 PM EDT Friday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

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.

&&

$$

PAZ004>006-010>012-017>019-026-035-045-260930-
/O.UPG.KCTP.HW.A.0001.210326T1000Z-210326T2200Z/
/O.EXB.KCTP.WI.Y.0002.210326T1000Z-210326T2200Z/
Warren-McKean-Potter-Elk-Cameron-Northern Clinton-Clearfield-
Northern Centre-Southern Centre-Huntingdon-Fulton-
Southern Clinton-
Including the cities of Warren, Bradford, Coudersport, St. Marys,
Ridgway, Emporium, Renovo, DuBois, Clearfield, Philipsburg, 
State College, Huntingdon, Mount Union, McConnellsburg, 
and Lock Haven
229 PM EDT Thu Mar 25 2021

...WIND ADVISORY IN EFFECT FROM 6 AM TO 6 PM EDT FRIDAY...

* WHAT...Southwest winds 20 to 25 mph with gusts up to 55 mph 
  expected.

* WHERE...Portions of central Pennsylvania.

* WHEN...From 6 AM to 6 PM EDT 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.

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.

&&

$$

PAZ027-028-036-037-041-042-046-049>053-056>059-063>066-260930-
/O.CON.KCTP.WI.Y.0002.210326T1400Z-210326T2200Z/
Mifflin-Juniata-Franklin-Tioga-Northern Lycoming-Sullivan-
Southern Lycoming-Union-Snyder-Montour-Northumberland-Columbia-
Perry-Dauphin-Schuylkill-Lebanon-Cumberland-Adams-York-Lancaster-
Including the cities of Lewistown, Mifflintown, Chambersburg, 
Mansfield, Wellsboro, Trout Run, Laporte, Williamsport, 
Lewisburg, Selinsgrove, Danville, Sunbury, Shamokin, Bloomsburg, 
Berwick, Newport, Harrisburg, Hershey, Pottsville, Lebanon, 
Carlisle, Gettysburg, York, and Lancaster
229 PM EDT Thu Mar 25 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM TO 6 PM EDT
FRIDAY...

* WHAT...Southwest winds 20 to 25 mph with gusts up to 50 mph 
  expected.

* WHERE...Portions of central Pennsylvania.

* WHEN...From 10 AM to 6 PM EDT 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.

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.

&&

$$
MS/RG/JB/AW
For more information from the National Weather Service visit
http://weather.gov/ctp

Nearby

High Wind Watches in Pennsylvania, 2021Every high wind watch 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.