textproduct: State College

WHAT HAS CHANGED

* Added in fog for Monday night.

KEY MESSAGES

1) Isolated heavy downpours still possible across the southeast counties this morning.

DISCUSSION

KEY MESSAGE 1: Isolated heavy downpours still possible across the southest counties this morning.

The flood watch for the northern and western areas of the CWA has expired as of of 2 AM.

Very heavy rain fell near the IPT area on Sunday, 5.28 inches at the airport there.

While the heaviest bands of showers and storms have weakened and moved out of the area, very high dewpoints remain across the far southeast still. Thus potential for isolated heavypours remain in the southeast. This area had very little rainfall on Sunday, so no watch at this point, but will keep an eye on it, as the terrain can be a large factor with weak flow and low top warm cores.

Models taper off the potential for rain later today into mid week, but given the large scale pattern, moisture will not be far off and could get back in here rather quickly. Some showers and storms expected again later in the week.

Some potential for localized heavy rain and marginal flooding risk later in the week, see lastest ERO products.

Some potential for low clouds and fog late today into early Tuesday morning, as fcst temperatures drop below fcst dewpoints, given clearing skies, light winds, and wet ground.

AVIATION /06Z MONDAY THROUGH FRIDAY/

As of 0150 UTC, main precipitation feature on radar is a squall line moving out of the Laurels into AOO currently and UNV within the hour, bringing brief LIFR/IFR restrictions and gusts 20-30 kt. Less confidence in this line being maintained as it moves towards IPT/MDT/LNS, where instability is weaker. Additional showers/tstms of lesser intensity in the area possible through about 07z.

Restrictions down to IFR are likely to follow the precip region- wide later tonight. Latest guidance indicates LIFR appears most probable at BFD, JST, and IPT (40-60 pct chc). These IFR conditions are likely to linger into early morning at most TAF sites before MVFR becomes the favored regime later tomorrow morning, with breaks to VFR possible especially after 18z Mon. Some valley fog may develop Monday night.

Outlook... Tue...AM valley fog possible, otherwise mainly VFR Wed-Fri...Daily chances for showers and isolated t-storms. Low VFR to MVFR conditions prevailing most of the time.

CLIMATE

Here are a few key climate callouts to wrap up July 2026:

2nd wettest at Bradford (7.78"/+3.62" above normal)

6th wettest at Altoona (6.18"/+2.70" above normal)

10th wettest at State College (6.09"/+2.30" above normal)

6th most # of days with maxT >=100F at Harrisburg (3) T3rd most # of days with maxT >=100F at Williamsport (2)

In August, the daylength decreases by 2-2.5 min/day with a total loss of ~ 70 minutes by the end of the month.

CTP WATCHES/WARNINGS/ADVISORIES

None.