This morning, forecasters on the local channels KDKA, WTAE, and WPXI were all calling for little snow accumulation from tonight’s system. Now, those forecasts have evolved into a significant snow event, worthy of a Winter Weather Advisory. In this post we’ll take a look at how the forecasts changed from 9am this morning, to 3pm this afternoon.<\/p>\n

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WTAE<\/strong> had one of the higher forecasts this morning, so they had less adjusting to do than other outlets for their evening forecast. This morning, Ashley Dougherty was calling for 2-4″ in almost all of Allegheny County, with just a tiny pocket of 3-6″ in the Laurels. Interestingly, this pocket of heavy accumulation actually got smaller in their evening re-draw, but the range was upped to 6″+. The 2-4″ range shifted to the northwest, and all of Allegheny County was placed under the 3-6″ range.<\/p>\n

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WPXI<\/strong> had a pretty big shift in their maps from morning to evening. Scott Harbaugh was forecasting 1-3″ for much of the forecast region this morning, but by evening Stephen Cropper had widely expanded the 3-6″ range. All but the extreme western point of Allegheny County is under the 3-6″ range, while the Laurels have been placed under a 6+” range. All in all, the ranges on WPXI’s map did not change, but the size of these areas was widely expanded.<\/p>\n

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The Pittsburgh Office of the National Weather Service<\/strong> made significant changes to their forecast between early morning and early evening. All of Allegheny County was forecast to see 2-3″, but in their revised predictions much of the county moved into a 4-6″ range. However, their cutoff for this boundary is near the city, so western suburbs like Moon are\u00a0forecast to see 3-4″. Areas east of the city have been bumped up from 3-4″ to 6-8″.<\/p>\n

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The colors paint the picture for Intellicast<\/strong>. Allegheny County was forecast to see\u00a02-3″ in\u00a0the western half and 3-4″ in the eastern half, but by their mid-day refresh the county’s accumulation was significantly upgraded. Now, they are forecasting 4-6″ in the western part of the county with 6-8″ in the eastern half.<\/p>\n","protected":false},"excerpt":{"rendered":"

This morning, forecasters on the local channels KDKA, WTAE, and WPXI were all calling for little snow accumulation from tonight’s system. Now, those forecasts have evolved into a significant snow event, worthy of a Winter Weather Advisory. In this post we’ll take a look at how the forecasts changed from 9am this morning, to 3pm \u00a0\u00a0\u00a0…Keep Reading<\/a><\/p>\n","protected":false},"author":1,"featured_media":384,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-373","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-storm-predictions"],"_links":{"self":[{"href":"https:\/\/pghsnowday.com\/wp-json\/wp\/v2\/posts\/373","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pghsnowday.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pghsnowday.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pghsnowday.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pghsnowday.com\/wp-json\/wp\/v2\/comments?post=373"}],"version-history":[{"count":2,"href":"https:\/\/pghsnowday.com\/wp-json\/wp\/v2\/posts\/373\/revisions"}],"predecessor-version":[{"id":385,"href":"https:\/\/pghsnowday.com\/wp-json\/wp\/v2\/posts\/373\/revisions\/385"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pghsnowday.com\/wp-json\/wp\/v2\/media\/384"}],"wp:attachment":[{"href":"https:\/\/pghsnowday.com\/wp-json\/wp\/v2\/media?parent=373"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pghsnowday.com\/wp-json\/wp\/v2\/categories?post=373"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pghsnowday.com\/wp-json\/wp\/v2\/tags?post=373"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}