This feature high in the atmosphere over northern Russia will gradually migrate toward lower latitudes in the days ahead, eventually dipping over Alaska before swooping into British Columbia by the middle of the week.
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This would put the trough—and its associated cold air—around the western United States by next weekend. Cold air tends to amplify the jet stream, which can lead to more widespread unsettled weather near robust troughs and calmer conditions beneath sprawling ridges.
A sharp trough over the western U.S. could allow a broad ridge to build over eastern North America around the time of the eclipse.
Lots of things can and likely will change over the next week, but this kind of setup is the first positive sign you’d want to see if you’re hoping for calmer conditions and a chance for clearer skies along the path of the total eclipse here in Canada.
Potential storms are still a wildcard
It’s becoming increasingly unlikely that we’ll contend with any Alberta clippers or systems affecting the path of totality from the northwest. Forecasters will closely watch the development of Texas or Colorado lows next weekend, as these would be the likely drivers for make-or-break cloudiness during the eclipse.
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Between this potential pattern and historical cloud data, conditions for southern Ontario may be a coin toss. Different cloud layers and the depth of moisture in the atmosphere would play a role in conditions on April 8.
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2024-03-30 03:58:00Z
CBMihwFodHRwczovL3d3dy50aGV3ZWF0aGVybmV0d29yay5jb20vZW4vbmV3cy93ZWF0aGVyL2ZvcmVjYXN0cy9jYW5hZGFzLXNvbGFyLWVjbGlwc2UtZm9yZWNhc3QtbWF5LWhpbmdlLW9uLWNvbGQtYWlyLWluLWFzaWEtb250YXJpby1xdWViZWPSAQA
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