textproduct: Cleveland

WHAT HAS CHANGED

The forecast overnight lows continue to trend down as clearing in sky coverage continues to increase. This will result in another night of frigid cold temperatures, especially across NWPA. As a result, a Cold Weather Advisory has been issued for NWPA tonight through mid-Monday morning.

KEY MESSAGES

1)One more night of frigid sub-zero temperatures expected tonight before more seasonable temperatures return Monday afternoon. Another night of this cold poses a continued risk for vulnerable populations and area infrastructure.

2)Lake effect snow is possible across portions of the snowbelt Tuesday afternoon into Wednesday night.

KEY MESSAGE 2

Much of this week is expected to remain dry as high pressure systems influence the area. The exception of this may be across portions of the snowbelt from Tuesday night into Thursday. Early on Tuesday, a low pressure system will move a warm front north followed by a cold front Tuesday night. This system should remain dry overall with the frontal boundaries primarily defined by temperature and wind shifts. However, behind the departing cold front a surface trough will persist over the area for much of Wednesday into early Thursday. This will result in a northwest flow and potentially another round of lake effect across portions of the snowbelt. Given the fact that Lake Erie is frozen, not expecting this to be a very notable event, but a couple inches may be possible. Will continue to monitor the strength of the aforementioned surface trough and progression of the system in upcoming forecasts to get a better handle on likelihood, timing, and magnitude of any lake effect that does occur.

AVIATION /00Z Monday THROUGH Friday/

Mostly clear skies with a few scattered clouds at 20kft and above across the region allows for widespread VFR conditions. Ceilings at 10kft will move in from the west by around 15-18Z. Winds will be light and variable through the first part of the period, then becoming predominately out of the southeast at around 5 knots by this morning.

Outlook...Non-VFR possible in snow showers across NE OH and NW PA Tuesday night into Wednesday.

MARINE

Lake Erie remains mostly ice-covered. Light northeast winds are expected through this evening before becoming southeast on Monday. Winds will shift to the southwest and increase to 10 to 20 knots on Tuesday and gradually shift to the west/northwest Tuesday night into Wednesday. Northwest flow will continue into Thursday, although wind speeds should diminish below 10 knots by Thursday afternoon.

CLE WATCHES/WARNINGS/ADVISORIES

OH...None. PA...Cold Weather Advisory from 10 PM this evening to 10 AM EST Monday for PAZ001>003. MARINE...None.