#CTP #PAwx 694
FXUS61 KCTP 100933
AFDCTP

Area Forecast Discussion
National Weather Service State College PA
533 AM EDT Sun May 10 2026

.WHAT HAS CHANGED...
* Continued increasing confidence in widespread frost and
freezing temperatures for Tuesday AM, but decreased
confidence in frost for the north tonight/Mon AM.

&&

.KEY MESSAGES...
1) Rain will sink to the south this morning, and leave a mostly
dry late morning and afternoon. Frost is possible, but not
likel https://mesonet.agron.iastate.edu/p.php?pid=202605100933-KCTP-FXUS61-AFDCTP

IEM :: AFD from NWS CTP

AFD issued by NWS CTP at 10 May 2026 09:33 UTC

#CTP #PAwx 282
FLUS41 KCTP 100816
HWOCTP

Hazardous Weather Outlook
National Weather Service State College PA
416 AM EDT Sun May 10 2026

PAZ028-035-036-056>059-063>066-110830-
Juniata-Fulton-Franklin-Perry-Dauphin-Schuylkill-Lebanon-Cumberland-
Adams-York-Lancaster-
416 AM EDT Sun May 10 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...M https://mesonet.agron.iastate.edu/p.php?pid=202605100816-KCTP-FLUS41-HWOCTP

IEM :: HWO from NWS CTP

HWO issued by NWS CTP at 10 May 2026 08:16 UTC

#CTP #PAwx 080
AWUS81 KCTP 100809
RWSCTP
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-
049>053-056>059-063>066-102215-

Regional Weather Summary
National Weather Service State College PA
409 AM EDT Sun May 10 2026

Scattered showers will taper off from northwest to southeast
today across the Keystone state, as a cold front moves southeast
of the area. Patchy fog will burn off shortly after sunrise.

Most of Pennsylvania will have more in the way of suns https://mesonet.agron.iastate.edu/p.php?pid=202605100809-KCTP-AWUS81-RWSCTP

IEM :: RWS from NWS CTP

RWS issued by NWS CTP at 10 May 2026 08:09 UTC

#CTP #PAwx 913
FXUS61 KCTP 100805
AFDCTP

Area Forecast Discussion
National Weather Service State College PA
405 AM EDT Sun May 10 2026

.WHAT HAS CHANGED...
* Continued increasing confidence in widespread frost and
freezing temperatures for Tuesday AM, but decreased
confidence in frost for the north tonight/Mon AM.

&&

.KEY MESSAGES...
1) Rain will sink to the south this morning, and leave a mostly
dry late morning and afternoon. Frost is possible, but not
likel https://mesonet.agron.iastate.edu/p.php?pid=202605100805-KCTP-FXUS61-AFDCTP

IEM :: AFD from NWS CTP

AFD issued by NWS CTP at 10 May 2026 08:05 UTC

#CTP #PAwx 610
CDUS41 KCTP 100619
CLIMDT

CLIMATE REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
219 AM EDT SUN MAY 10 2026

...................................

...THE HARRISBURG PA CLIMATE SUMMARY FOR MAY 9 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1888 TO 2026

WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
https://mesonet.agron.iastate.edu/p.php?pid=202605100619-KCTP-CDUS41-CLIMDT

IEM :: CLI from NWS CTP

CLI issued by NWS MDT at 10 May 2026 06:19 UTC

#CTP #PAwx 614
CDUS41 KCTP 100619
CLIAOO

CLIMATE REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
219 AM EDT SUN MAY 10 2026

...................................

...THE ALTOONA CLIMATE SUMMARY FOR MAY 9 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1948 TO 2026

WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
https://mesonet.agron.iastate.edu/p.php?pid=202605100619-KCTP-CDUS41-CLIAOO

IEM :: CLI from NWS CTP

CLI issued by NWS AOO at 10 May 2026 06:19 UTC

#CTP #PAwx 611
CDUS41 KCTP 100619
CLIBFD

CLIMATE REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
219 AM EDT SUN MAY 10 2026

...................................

...THE BRADFORD CLIMATE SUMMARY FOR MAY 9 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1957 TO 2026

WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
https://mesonet.agron.iastate.edu/p.php?pid=202605100619-KCTP-CDUS41-CLIBFD

IEM :: CLI from NWS CTP

CLI issued by NWS BFD at 10 May 2026 06:19 UTC

#CTP #PAwx 613
CDUS41 KCTP 100619
CLIJST

CLIMATE REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
219 AM EDT SUN MAY 10 2026

...................................

...THE JOHNSTOWN CLIMATE SUMMARY FOR MAY 9 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1892 TO 2026

WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
https://mesonet.agron.iastate.edu/p.php?pid=202605100619-KCTP-CDUS41-CLIJST

IEM :: CLI from NWS CTP

CLI issued by NWS JST at 10 May 2026 06:19 UTC

#CTP #PAwx 612
CDUS41 KCTP 100619
CLIIPT

CLIMATE REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
219 AM EDT SUN MAY 10 2026

...................................

...THE WILLIAMSPORT PA CLIMATE SUMMARY FOR MAY 9 2026...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1895 TO 2026

WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
https://mesonet.agron.iastate.edu/p.php?pid=202605100619-KCTP-CDUS41-CLIIPT

IEM :: CLI from NWS CTP

CLI issued by NWS IPT at 10 May 2026 06:19 UTC

#CTP #PAwx 386
FXUS61 KCTP 100458
AFDCTP

Area Forecast Discussion
National Weather Service State College PA
1258 AM EDT Sun May 10 2026

.WHAT HAS CHANGED...
* Fine tuned rainfall timing over the next 48 hours.
* Increasing confidence in widespread frost and freezing
temperatures for Tuesday morning.

&&

.KEY MESSAGES...
1) Periods of light rain/showers through Mother's Day weekend

2) Frost/freeze risk Monday night into Tuesday morning over the
western and centr https://mesonet.agron.iastate.edu/p.php?pid=202605100458-KCTP-FXUS61-AFDCTP

IEM :: AFD from NWS CTP

AFD issued by NWS CTP at 10 May 2026 04:58 UTC