#CTP #PAwx 533
FLUS41 KCTP 201922
HWOCTP

Hazardous Weather Outlook
National Weather Service State College PA
322 PM EDT Mon Apr 20 2026

PAZ006-037-041-042-211930-
Potter-Tioga-Northern Lycoming-Sullivan-
322 PM EDT Mon Apr 20 2026

This Hazardous Weather Outlook is for central Pennsylvania.

.DAY ONE...This afternoon and tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

The probability for widesprea https://mesonet.agron.iastate.edu/p.php?pid=202604201922-KCTP-FLUS41-HWOCTP

IEM :: HWO from NWS CTP

HWO issued by NWS CTP at 20 Apr 2026 19:22 UTC

#CTP #PAwx 578
FXUS61 KCTP 201920
AFDCTP

Area Forecast Discussion
National Weather Service State College PA
320 PM EDT Mon Apr 20 2026

.WHAT HAS CHANGED...
* No significant changes with this late morning update

&&

.KEY MESSAGES...
1) Widespread damaging frost/freeze threat across all of
central Pennsylvania tonight into Tuesday morning.

2) Dry conditions through Tuesday may result in a marginal
increase in risk of wildfire spread.

3) Trending warmer through the https://mesonet.agron.iastate.edu/p.php?pid=202604201920-KCTP-FXUS61-AFDCTP

IEM :: AFD from NWS CTP

AFD issued by NWS CTP at 20 Apr 2026 19:20 UTC

#CTP #PAwx 140
WWUS71 KCTP 201839
NPWCTP

URGENT - WEATHER MESSAGE
National Weather Service State College PA
239 PM EDT Mon Apr 20 2026

PAZ004-005-010>012-017-018-211500-
/O.CON.KCTP.FZ.W.0004.260421T0400Z-260421T1500Z/
Warren-McKean-Elk-Cameron-Northern Clinton-Clearfield-Northern
Centre-
Including the cities of Clearfield, Ridgway, St. Marys, Warren,
Philipsburg, Renovo, DuBois, Emporium, and Bradford
239 PM EDT Mon Apr 20 2026

...FREEZE WARNING REMAINS IN EFFECT F https://mesonet.agron.iastate.edu/vtec/f/2026-O-CON-KCTP-FZ-W-0004_2026-04-21T04:00Z

KCTP Freeze Warning #4

Elk, Warren, McKean, Cameron, Northern Clinton, Clearfield, Northern Centre, Southern Centre, Cambria, Blair, Somerset, Bedford, Southern Clinton, Southern Lycoming, Huntingdon, Mifflin, Juniata, Fulton, Franklin, Union, Snyder, Montour, Northumberland, Columbia, Perry, Dauphin, Schuylkill, Lebanon, Cumberland, Adams, York, Lancaster

Iowa Environmental Mesonet

#CTP #PAwx 280
FXUS61 KCTP 201829
AFDCTP

Area Forecast Discussion
National Weather Service State College PA
229 PM EDT Mon Apr 20 2026

.WHAT HAS CHANGED...
* No significant changes with this late morning update

&&

.KEY MESSAGES...
1) Widespread damaging frost/freeze threat across all of
central Pennsylvania tonight into Tuesday morning.

2) Drier conditions in the early to middle part of the week may
result in a marginal increase in risk of wildfire spread.

3) Tr https://mesonet.agron.iastate.edu/p.php?pid=202604201829-KCTP-FXUS61-AFDCTP

IEM :: AFD from NWS CTP

AFD issued by NWS CTP at 20 Apr 2026 18:29 UTC

#CTP #PAwx 041
AWUS81 KCTP 201725
RWSCTP
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-
049>053-056>059-063>066-210730-

Regional Weather Summary
National Weather Service State College PA
125 PM EDT Mon Apr 20 2026

Very cold air at higher levels in the atmosphere will bring
scattered rain and snow showers across mainly northern and
eastern portions of the state this afternoon.

It will remain cool and breezy across the Commonwealth, with wind
gusts arou https://mesonet.agron.iastate.edu/p.php?pid=202604201725-KCTP-AWUS81-RWSCTP

IEM :: RWS from NWS CTP

RWS issued by NWS CTP at 20 Apr 2026 17:25 UTC

#CTP #PAwx 222
FXUS61 KCTP 201558
AFDCTP

Area Forecast Discussion
National Weather Service State College PA
1158 AM EDT Mon Apr 20 2026

.WHAT HAS CHANGED...
* No significant changes with this late morning update

&&

.KEY MESSAGES...
1) Widespread damaging frost/freeze threat across all of
central Pennsylvania tonight into Tuesday morning.

2) Drier conditions in the early to middle part of the week may
result in a marginal increase in risk of wildfire spread.

3) T https://mesonet.agron.iastate.edu/p.php?pid=202604201558-KCTP-FXUS61-AFDCTP

IEM :: AFD from NWS CTP

AFD issued by NWS CTP at 20 Apr 2026 15:58 UTC

#CTP #PAwx 071
NOUS41 KCTP 201405
PNSCTP
PAZ005-006-011-012-037-041-201815-

Public Information Statement
National Weather Service State College PA
1005 AM EDT Mon Apr 20 2026

...NOAA WEATHER RADIO ALL HAZARDS STATION PLANNED OUTAGE IN
COUDERSPORT...

NOAA Weather Radio All Hazards Station WNG-591, located in
Coudersport, will be off the air today, Monday, April 20th for
scheduled maintenance. Service is expected to be restored later
this evening.

We apologize for https://mesonet.agron.iastate.edu/p.php?pid=202604201405-KCTP-NOUS41-PNSCTP

IEM :: PNS from NWS CTP

PNS issued by NWS CTP at 20 Apr 2026 14:05 UTC

#CTP #PAwx 912
FLUS41 KCTP 201341
HWOCTP

Hazardous Weather Outlook
National Weather Service State College PA
941 AM EDT Mon Apr 20 2026

PAZ006-037-041-042-211345-
Potter-Tioga-Northern Lycoming-Sullivan-
941 AM EDT Mon Apr 20 2026

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...Tuesday through Sunday.

The probability for widespread hazardo https://mesonet.agron.iastate.edu/p.php?pid=202604201341-KCTP-FLUS41-HWOCTP

IEM :: HWO from NWS CTP

HWO issued by NWS CTP at 20 Apr 2026 13:41 UTC

#CTP #PAwx 409
WWUS71 KCTP 201317
NPWCTP

URGENT - WEATHER MESSAGE
National Weather Service State College PA
917 AM EDT Mon Apr 20 2026

PAZ004-005-010>012-017-018-210130-
/O.EXP.KCTP.FZ.W.0003.000000T0000Z-260420T1300Z/
/O.CON.KCTP.FZ.W.0004.260421T0400Z-260421T1500Z/
Warren-McKean-Elk-Cameron-Northern Clinton-Clearfield-Northern
Centre-
Including the cities of Clearfield, Ridgway, St. Marys, Warren,
Philipsburg, Renovo, DuBois, Emporium, and Bradford
917 AM EDT Mon A https://mesonet.agron.iastate.edu/vtec/f/2026-O-CON-KCTP-FZ-W-0004_2026-04-21T04:00Z

KCTP Freeze Warning #4

Elk, Warren, McKean, Cameron, Northern Clinton, Clearfield, Northern Centre, Southern Centre, Cambria, Blair, Somerset, Bedford, Southern Clinton, Southern Lycoming, Huntingdon, Mifflin, Juniata, Fulton, Franklin, Union, Snyder, Montour, Northumberland, Columbia, Perry, Dauphin, Schuylkill, Lebanon, Cumberland, Adams, York, Lancaster

Iowa Environmental Mesonet

#CTP #PAwx 409
WWUS71 KCTP 201317
NPWCTP

URGENT - WEATHER MESSAGE
National Weather Service State College PA
917 AM EDT Mon Apr 20 2026

PAZ004-005-010>012-017-018-210130-
/O.EXP.KCTP.FZ.W.0003.000000T0000Z-260420T1300Z/
/O.CON.KCTP.FZ.W.0004.260421T0400Z-260421T1500Z/
Warren-McKean-Elk-Cameron-Northern Clinton-Clearfield-Northern
Centre-
Including the cities of Clearfield, Ridgway, St. Marys, Warren,
Philipsburg, Renovo, DuBois, Emporium, and Bradford
917 AM EDT Mon A https://mesonet.agron.iastate.edu/vtec/f/2026-O-EXP-KCTP-FZ-W-0003_2026-04-20T13:17Z

KCTP Freeze Warning #3

Blair, Bedford, Warren, McKean, Elk, Cameron, Northern Clinton, Clearfield, Northern Centre, Southern Centre, Cambria, Somerset, Southern Clinton, Southern Lycoming

Iowa Environmental Mesonet