Category: ClientBrief

Jan 02

Client Brief: Snowy Open To Sunday…

Type: Impactful wintry weather

What: Accumulating snow

When: 10p Saturday – 10a Sunday

Temperatures: Lower 30s

Wind: E shifting to the NW Sunday morning 5-15 MPH

Blowing/ Drifting: Minimal

Pavement Impacts: Plowing and salting will be required

Summary: A cold core upper level disturbance will move directly over Indiana tonight and Sunday morning. After a dry period of weather through the daytime Saturday, a mix of rain and snow will overspread central IN by late evening. As the upper level disturbance moves overhead, the column of air should become just cold enough to allow the wintry mix to transition to all snow during the overnight. Embedded bands of moderate to heavy snow will develop early Sunday morning along and just north of the I-70 corridor. Today’s high resolution guidance has “honed in” on the heavier snow zone being located from Vermillion county northeast to Randolph county and points north. The system will pull east of the state Sunday afternoon, allowing the snow to come to an end through the morning (prior to dawn across western IN, shortly after sunrise immediate central, and mid-morning east-central).

Confidence: High

Permanent link to this article: https://indywx.com/client-brief-snowy-open-to-sunday/

Jan 01

Client Brief: Thump Of Wet Snow Saturday Night – Sunday Morning…

Type: Impactful wintry weather

What: Accumulating snow

When: 11p Saturday – 11a Sunday

Temperatures: Lower 30s

Wind: E shifting to the NW Sunday morning 5-15 MPH

Blowing/ Drifting: Minimal

Pavement Impacts: Plowing and salting will be required

Summary: A cold core upper level disturbance will lift northeast out of north-central Texas tonight and directly over Indiana Saturday night and Sunday morning. After a dry period of weather through the daytime Saturday, a mix of rain and snow will overspread central IN by late evening. As the upper level disturbance moves overhead, the column of air should become just cold enough to allow the wintry mix to transition to all snow during the overnight. Embedded bands of moderate to heavy snow may develop early Sunday morning. The system will pull east of the state Sunday afternoon, allowing the snow to come to an end by mid to late morning.

Confidence: Medium – high

Next Update: Saturday morning

Permanent link to this article: https://indywx.com/client-brief-thump-of-wet-snow-saturday-night-sunday-morning/

Dec 31

Client Brief: Freezing Rain Arrives Pre-Dawn Friday…

Type: Impactful wintry weather

What: Freezing rain/ icy glaze

When: 2a – 1p Friday

Temperatures: 25° to 30° (location dependent, please see below)

Wind: East 5-15 MPH

Blowing/ Drifting: Non-existent

Pavement Impacts: Salting will be required

Summary: After a dry New Year’s Eve, moisture will advance north as a surface low tracks from the northwestern Gulf Coast into the Ohio Valley. As the precipitation arrives (around or just after midnight for far southwestern IN before spreading north, reaching Indianapolis by 4a, and north-central Indiana by 6a), it’ll encounter a shallow layer of cold air entrenched at the surface. Several hours of freezing rain can be expected north of a line from Terre Haute, Bloomington, and Cincinnati Friday morning where temperatures will remain below freezing the longest. South of that line, only a brief period of icing is expected before a transition to a cold rain. Further north, especially along and north of the I-70 corridor, temperatures will fall into the middle to upper 20s tonight and slowly rise into the lower 30s by late morning. All of the state will “warm” above freezing by Friday afternoon with any lingering moisture falling as a plain ole rain. Beforehand, an icy glaze is expected to develop predawn Friday and travel will be difficult in places- especially from central IN and points north. If at all possible, we recommend delaying travel until afternoon as conditions should slowly begin to improve by that point.

Confidence: High

Next Update: This afternoon

Permanent link to this article: https://indywx.com/client-brief-freezing-rain-arrives-pre-dawn-friday/

Dec 14

Client Brief: Widespread Snow Builds In Overnight Tuesday – Wednesday; Slippery Travel Expected Wednesday AM…

Type: Impactful wintry weather

What: Accumulating snow

When: Late Tuesday night & Wednesday

Temperatures: Upper 20s – lower 30s

Wind: NE 10-20 MPH early in the event, shifting to the NW and decreasing to 5-10 MPH Wednesday

Blowing/ Drifting: Minimal 

Pavement Impacts: Salting and plowing required

Summary: We don’t see any need to change our early stand on this event (originally issued Saturday morning). Data over the weekend trended away from the heavier snowfall amounts falling across our area only to have moved back to the snowy idea over the past 12-24 hours. Though while never expected to be a blockbuster event here, we always felt this was a classic setup to produce widespread accumulating snows across the region. The snow shield will lift northeast across the region overnight Tuesday into predawn Wednesday. We expect an arrival into the Indy metro and surrounding ‘burbs between 1a (southwest) and 3a (northeast). Once the snow arrives, it’ll settle in for the long haul, continuing (light to moderate intensity) for the better part of the daytime hours. Unfortunately, we fully expect slick roadways for the Wednesday morning rush. The snow will eventually end (southwest to northeast) between 3p and 7p Wednesday. We have no changes to our initial snowfall map below, first issued Saturday morning.

Confidence: High

Next Update: Tuesday morning (video package)

Permanent link to this article: https://indywx.com/client-brief-widespread-snow-builds-in-overnight-tuesday-wednesday-slippery-travel-expected-wednesday-am/

Dec 12

Client Brief: Eyeing 1st Widespread Accumulating Snow Of The Season…

Type: Impactful wintry weather

What: Accumulating snow

When: Tuesday night & Wednesday

Temperatures: Lower 30s

Wind: NE 10-20 MPH early in the event, shifting to the NW and decreasing to 5-10 MPH Wednesday

Blowing/ Drifting: Minimal

Pavement Impacts: Salting and plowing required

Summary: An area of low pressure will move across northern Texas (Monday night and Tuesday morning) northeast into the lower Ohio Valley (Wednesday morning). In response to this feature, a secondary surface low will form in the northern Gulf of Mexico Tuesday night and it’s this surface low that will eventually “steal the show” moving northeast and being located off the Carolina coast Wednesday before eventually blowing up into a good ole fashioned nor’easter Wednesday night and Thursday. Before this energy transfer takes place, we should see a stripe of accumulating snow extend northeast into the Ohio Valley Tuesday night and Wednesday. From this distance, it appears as if central IN is in store for the 1st widespread snow event of the season, but the devil’s still in the details. We’ll have to monitor the energy transfer closely. Additionally, it’ll be important to keep eyes on the developing Gulf low. Should this system generate convection in more rapid fashion than currently thought, it would steal some of the moisture from the initial low into the OHV. As it is, the early thinking here is that this is a 1″ to 3″ type event for our immediate region. Should the Gulf low organize a little slower, the possibility is there for heavier totals. Widespread snow should diminish and come to an end late Wednesday morning (west) and by afternoon (east). Thursday and Friday look dry and cold.

Confidence: Medium

Next Update: This afternoon (video package)

Permanent link to this article: https://indywx.com/client-brief-eyeing-1st-widespread-accumulating-snow-of-the-season/