Marine Weather and Tide Forecast for Chester Hill, PA
April 24, 2024 9:54 AM EDT (13:54 UTC) Change Location
 | Sunrise 6:16 AM Sunset 8:02 PM Moonrise 8:07 PM Moonset 5:26 AM |
Area Discussion for - State College, PA
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FXUS61 KCTP 241324 AFDCTP
Area Forecast Discussion National Weather Service State College PA 924 AM EDT Wed Apr 24 2024
SYNOPSIS
-Cooler today with scattered rain showers fading into tonight -Rain-free end to the week with frost/freeze Thu & Fri morning -Some showers for the last weekend of April; warmer/humid Sunday
NEAR TERM /THROUGH TONIGHT/
500mb trough axis swinging through central PA at mid morning maintaining scattered open cellular showers from the Fingerlakes through the Central Mountains and parts of the SC Mountains, all tracking eastward at a good clip. Thermodynamic profiles favorable for a few low topped thunderstorms over my southeastern counties late this morning and afternoon thanks to steep lapse rates afforded by cooling aloft and sfc warming.
Localized gusts of 30-40 mph would be possible from these, and our southeast counties remain in the general t-storm outlook from SPC.
Highs today will trend ~5-10 degrees cooler vs. Tuesday and ranging from the upper 40s in the NW mtns to mid 60s in the lower Susquehanna Valley. Expect rain showers to dissipate by tonight.
1030+mb Canadian high pressure with origins over northern Manitoba will drift southward to a position north of Lake Ontario overnight. Large scale downward motion and a rather chilly and dry northerly flow should clear skies from north to south into early Thursday morning. A freeze watch remains in effect for active growing season zones where fcst min temps are fcst in the 25-30F range. Dayshift can assess cloud trends and upgrade to a warning. Frost is possible but may not be as widespread particularly in the southern tier given persistent north wind and lingering low cloud cover centered over the Laurel Highlands. Frost/freeze risk outside of the watch area is highlighted in the HWO.
SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/
Chilly/cold start Thursday followed by mostly sunny conditions allowing temps to warm into the mid 50s to around 60F. Very dry air/below normal pwats ~0.20 inches combined with HRRR ens min and mixed Td sounding signal suggests a floor for minRH as low as 10-15% across the northern tier. The abnormally dry air and favorable radiational cooling conditions will support renewed frost/freeze concerns tomorrow night into AM Friday. This risk is highlighted in the HWO.
The sfc high strengthens to +2SD or ~1035mb as it drifts over interior New England to Long Island by 12Z Saturday. Rain free wx conditions will continue through the end of the week/Friday with sun mixing with high clouds and max temps trending warmer into the upper 50s to lower 60s.
Showers along a warm front are likely to reach western PA by daybreak Saturday based on latest operational model/ens consensus. No frost/freeze concerns for Friday night into AM Saturday with increasing clouds and fcst lows 38-45F.
LONG TERM /SATURDAY THROUGH TUESDAY/
The weekend appears somewhat unsettled, with a warm front arriving Saturday and warm sector struggling to overspread central PA. It won't be raining all the time, but a couple of showers are likely on Saturday with a t-storm possible on Sunday.
Upper ridging should eventually win out by early next week, allowing for drier wx and much warmer temps with highs surging through the 70s and perhaps topping 80F across the south on Monday. A bit humid as well with fcst Td around 60F.
AVIATION /13Z WEDNESDAY THROUGH SUNDAY/
Scattered rain showers will continue throughout the morning and early afternoon before diminishing by the early evening hours.
Winds out of the NW will see occasional gusts of 15-25 kts in some locations.
The western highlands have dropped to MVFR/IFR conditions and will stay down for today. Low probability (<20%) of LIFR exists for BFD in the afternoon, bit cigs are more likely to remain MVFR/IFR. The central mtns will likely drop to borderline MVFR/VFR, with the Lower Susq Valley remaining VFR.
Conditions will eventually improve late tonight as cigs raise back to VFR as clouds clear and high pressure builds into the region for Thursday and Friday.
Outlook...
Wed...Spotty -SHRA with MVFR cigs west and predominantly VFR east.
Thu-Fri...Predominantly VFR conds under high pressure.
Fri night-Sat...Patchy rain developing from west to east.
Sun...Scattered SHRA/TSRA possible.
CTP WATCHES/WARNINGS/ADVISORIES
Freeze Watch from late tonight through Thursday morning for PAZ004-005-010-011-017>019-025>027-045-046-049>053.
Area Forecast Discussion National Weather Service State College PA 924 AM EDT Wed Apr 24 2024
SYNOPSIS
-Cooler today with scattered rain showers fading into tonight -Rain-free end to the week with frost/freeze Thu & Fri morning -Some showers for the last weekend of April; warmer/humid Sunday
NEAR TERM /THROUGH TONIGHT/
500mb trough axis swinging through central PA at mid morning maintaining scattered open cellular showers from the Fingerlakes through the Central Mountains and parts of the SC Mountains, all tracking eastward at a good clip. Thermodynamic profiles favorable for a few low topped thunderstorms over my southeastern counties late this morning and afternoon thanks to steep lapse rates afforded by cooling aloft and sfc warming.
Localized gusts of 30-40 mph would be possible from these, and our southeast counties remain in the general t-storm outlook from SPC.
Highs today will trend ~5-10 degrees cooler vs. Tuesday and ranging from the upper 40s in the NW mtns to mid 60s in the lower Susquehanna Valley. Expect rain showers to dissipate by tonight.
1030+mb Canadian high pressure with origins over northern Manitoba will drift southward to a position north of Lake Ontario overnight. Large scale downward motion and a rather chilly and dry northerly flow should clear skies from north to south into early Thursday morning. A freeze watch remains in effect for active growing season zones where fcst min temps are fcst in the 25-30F range. Dayshift can assess cloud trends and upgrade to a warning. Frost is possible but may not be as widespread particularly in the southern tier given persistent north wind and lingering low cloud cover centered over the Laurel Highlands. Frost/freeze risk outside of the watch area is highlighted in the HWO.
SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/
Chilly/cold start Thursday followed by mostly sunny conditions allowing temps to warm into the mid 50s to around 60F. Very dry air/below normal pwats ~0.20 inches combined with HRRR ens min and mixed Td sounding signal suggests a floor for minRH as low as 10-15% across the northern tier. The abnormally dry air and favorable radiational cooling conditions will support renewed frost/freeze concerns tomorrow night into AM Friday. This risk is highlighted in the HWO.
The sfc high strengthens to +2SD or ~1035mb as it drifts over interior New England to Long Island by 12Z Saturday. Rain free wx conditions will continue through the end of the week/Friday with sun mixing with high clouds and max temps trending warmer into the upper 50s to lower 60s.
Showers along a warm front are likely to reach western PA by daybreak Saturday based on latest operational model/ens consensus. No frost/freeze concerns for Friday night into AM Saturday with increasing clouds and fcst lows 38-45F.
LONG TERM /SATURDAY THROUGH TUESDAY/
The weekend appears somewhat unsettled, with a warm front arriving Saturday and warm sector struggling to overspread central PA. It won't be raining all the time, but a couple of showers are likely on Saturday with a t-storm possible on Sunday.
Upper ridging should eventually win out by early next week, allowing for drier wx and much warmer temps with highs surging through the 70s and perhaps topping 80F across the south on Monday. A bit humid as well with fcst Td around 60F.
AVIATION /13Z WEDNESDAY THROUGH SUNDAY/
Scattered rain showers will continue throughout the morning and early afternoon before diminishing by the early evening hours.
Winds out of the NW will see occasional gusts of 15-25 kts in some locations.
The western highlands have dropped to MVFR/IFR conditions and will stay down for today. Low probability (<20%) of LIFR exists for BFD in the afternoon, bit cigs are more likely to remain MVFR/IFR. The central mtns will likely drop to borderline MVFR/VFR, with the Lower Susq Valley remaining VFR.
Conditions will eventually improve late tonight as cigs raise back to VFR as clouds clear and high pressure builds into the region for Thursday and Friday.
Outlook...
Wed...Spotty -SHRA with MVFR cigs west and predominantly VFR east.
Thu-Fri...Predominantly VFR conds under high pressure.
Fri night-Sat...Patchy rain developing from west to east.
Sun...Scattered SHRA/TSRA possible.
CTP WATCHES/WARNINGS/ADVISORIES
Freeze Watch from late tonight through Thursday morning for PAZ004-005-010-011-017>019-025>027-045-046-049>053.
Airport Reports
EDIT (hide/show) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Temp | DewPt | RH | inHg |
| KFIG CLEARFIELDLAWRENCE,PA | 15 sm | 19 min | WNW 04 | 3 sm | Overcast | Lt Rain Mist | 48°F | 46°F | 93% | 29.91 |
| KUNV UNIVERSITY PARK,PA | 20 sm | 61 min | W 05 | 10 sm | Mostly Cloudy | 52°F | 43°F | 71% | 29.89 |
State College, PA,
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