Category: Sleet

Client Brief: Wet Snow Develops This Afternoon Into The Evening…

Type: Impactful Winter Weather

What: Accumulating wet snow

When: This afternoon into early evening 

Temperatures: Falling from the upper 30s early afternoon to around 30° by late evening.

Wind: North 20-25 MPH

Blowing/ Drifting: Non-existent to minimal

Pavement Impacts: Salting required. Plowing will also likely be needed across east-central Indiana.

There’s an old saying in the weather business of an “upper low being a weatherman’s foe.” That’s particularly true early and late in the season due to the added complexities of marginally cold air typically available. As we discussed over the past week, the dynamics and cold air these type of systems can manufacture also creates added headache. Many instances these kind of systems result in essentially a “now cast” scenario. With all of that said, our confidence is increasing after another look at overnight model runs to put out the snowfall forecast above. Rain will overspread central Indiana late morning into the early afternoon, however, as the precipitation rates increase, we’ll notice a transition to wet snow this afternoon into the evening. There could also be a brief wintry mix, including sleet, during the transition to wet snow. Banding features will likely develop late afternoon into early evening leading to heavier snowfall across east-central parts of the state where we have the 1″ to 3″ snowfall forecast up. For the remainder of central Indiana, most should be closer to a coating with a few 1″ reports. The snow will exit even far eastern areas before midnight.

Confidence: Medium

Next Update: This afternoon

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VIDEO: Week Ahead Outlook; Greenland Block Leads To An “Interesting” Pattern Around Thanksgiving…

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Sunday Morning Video: Repeat Next Weekend?

Is another damaging wind event on the horizon next weekend?

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All-Access Client Brief: Plowable Snow Moves In Overnight…

Brief: Heavy Snow & Sleet

Forecaster: McMillan

What: Heavy Snow & Sleet

When: 12a to 8a Wednesday

Temperatures: Upper 20s to lower 30s

Wind: E 15-25 MPH

Blowing/ Drifting: Moderate before mixing with sleet

The setup remains the same as a warm front lifts north during the overnight. Copious amounts of moisture will arrive into central Indiana and with cold air in place, a period of moderate to heavy snow will develop. Timing into the city, itself, should come around, or just before, midnight. While the snow will be of the heavy, wet variety, gusty easterly winds will result in blowing and drifting snow (especially on north-south roadways) before precipitation transitions to sleet. We’ve “beefed” our accumulation forecast up to include a 3″ to 5″ band across east-central Indiana, including Indianapolis, as short-term guidance is indicating a period of significant “forcing” (or lift in the atmosphere) that will lead to heavy snowfall rates before the transition to sleet. A couple of hours with snowfall rates in excess of 1″ per hour will likely be observed in that 1a to 3a window. Precipitation will transition to sleet and a period of freezing rain between 3a and 5a from south to north, before turning to all rain in the city before sunrise. Further north, a transition to rain won’t be noticed until after 8a, but the majority of precipitation will likely be over with by that point (just lingering drizzle and fog).

Confidence: High

Permanent link to this article: https://indywx.com/all-access-client-brief-plowable-snow-moves-in-overnight/

Tuesday Morning Video Update: From Snow To Storms And Looking Ahead To March…

A “thump” of sleet and snow will give way to strong storm potential Saturday. Looking ahead, winter appears to make a comeback during the 1st half of March…

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