1.) A cold close to the work week can be expected with highs today only topping out in the upper 20s (average highs are in the upper 30s).
2.) What at one time looked to be a significant weekend storm now may not even deliver any precipitation at all to the region. A flurry is possible, but most should remain precipitation-free this weekend. Expect a gusty southwest wind developing SB Sunday. Highs around freezing Saturday will zoom into the middle 40s Sunday. Lows Saturday morning in the middle 10s will rise into the upper 20s to around 30 Sunday morning.
3.) A more significant storm system will cut for the Great Lakes early next week and this will deliver gusty showers and embedded thunderstorms. A couple of stronger storms aren’t out of the question. Locally heavy rains can be expected, including amounts of 1″-1.5″ (locally heavier totals).
4.) Cold air will rush back into the region behind the storm and snow showers and squalls are likely by Wednesday.
5.) Longer-term, a real fight is developing on the overall direction we’re heading as February evolves. Analog methods and teleconnections (shown below) would yield bullish cold signals and give hope to winter enthusiasts. However, modeling isn’t in agreement on the wintry ideas. In fact, some modeling is very spring-like as mid-Feb nears. Stay tuned as we try and iron out the details this weekend. Updates will come.
Showers will expand in overall coverage as we progress through the late morning hours, but shouldn’t amount to much (0.10″ for a few neighborhoods). We return to a drier theme this afternoon.
Longer term, the GFS ensemble continues to show the cold growing deeper and stronger for the region as we progress into early February. Winter is far from over.
After the past week to ten days, that frigid open to the month seems like forever ago! The past 7-10 days has featured a significant January thaw, and temperatures now, MTD, are warmer than average across the Ohio Valley. Warmest anomalies can be found across the southeast region.
That said, the pattern is shifting back to winter for the last week of the month and while the duration, longer-term, can be argued, the next 2-3 weeks appear to offer an opportunity to play “catch up” in both the snow and cold departments. Note the developing eastern troughiness. This will bring colder air back into the east as we close January and open February. The GFS ensembles, courtesy of Tropicaltidbits.com, also develops an interesting “blocky” look towards the end of the period in Week 2. Should this verify, it would lead to a better chance of the cold, active pattern locking in.
Thinking here at IndyWx.com believes the European is likely rushing the warmer central look. Time will tell…
The second week of the month warmed significantly and continues, overall, for the next week.
The mid-January warmth is attributed to a roaring PAC jet which is currently helping flood the country with temperatures much more like spring than the dead of winter. We continue to forecast 60+ this weekend across central IN.
This Weekend:
Next Thursday:
Next Weekend:
The pattern begins in the short-term with a look that will power anomalous warmth through the weekend, along with renewed rain chances Thursday night into Friday (another 1″+ for most), but begins to shift next week towards the colder look. The 2nd (weekend) storm system will be significant and poses a severe risk to the southeast region. Modeling has backed away on the heavy rain threat Sunday, but showers will be around early next week along with very windy conditions (40+ MPH gusts). Blocking is forcing the low south. By the time we get to next weekend, the pattern has done a 180 and in a position to drill unseasonably cold air back into the central and eastern portions of the country.
2.) Showers will creep north overnight into Monday morning, but shouldn’t amount to much. They will be scattered in nature across central Indiana.
3.) More widespread rain and embedded thunder will develop Monday night into Tuesday morning. This should amount of widespread half inch to one inch totals across the viewing area.
4.) A moist southwest flow will help push a warmer regime northward for the second half of the week. Though warm, we’ll also have to deal with periods of rain as disturbances track northeast. We circle Friday and Sunday as the wettest days and remain optimistic Saturday will feature dry and unseasonably warm conditions (lower-middle 60s). Between the rainy days Friday and Sunday, additional rainfall totals of 1″-2″ seem like a good bet.
5.) The evolution of the pattern just beyond the 7-day period we’ll begin to take on an increasingly wintry look and we remain confident on a flip back to wintry conditions as we roll through the last week of the month. We’ll have to keep a close eye on a storm system in the 8-10 day period. It’s obviously way too early to discuss specifics, but this will be the time the pattern is beginning to turn back towards a wintry regime…
GFS ensemble members above show the overall good agreement on a central IN ice set-up for portions of the weekend.
2.) Expanding Snowpack: 65.4% of the country is covered in snow this morning. The cold, arctic high suppressed the winter storm threat south as we alluded to in previous posts. Places across the Deep South that aren’t used to wintry precipitation are waking up to snowy and icy conditions this morning, including MS, AL, GA, SC, and into the Mid Atlantic. Heavier snowfall accumulated across east TN, including 5″-8″ in the high country. Heavy snow also fell through western and central NC and Blizzard Warnings are up in rare areas including VA Beach this morning.
3.) Moderating Temperatures: Our air flow will back around to the southwest and this will help temperatures begin to moderate early next week (around freezing Monday and all the way to around 50 Tuesday). As the moderating trend gets underway, we may have to deal with a brief period of freezing drizzle/ freezing rain Monday evening.
4.) Rainy Midweek: A more significant surge of moisture will arrive midweek and result in periods of moderate to heavy rain Wednesday PM into Thursday. Potential is present for 1″+ during this timeframe.
5.) Weekend Wintry “Fun And Games?” A tremendous battle will take place next weekend between a strong and sprawling arctic high pressure system and the southeast ridge. In between it’ll be fascinating to watch things unfold, and as you’d imagine, that includes Indiana. Despite the southeast ridge flexing it’s muscle, the concern here is that the shallow dense arctic air will “ooze” south and present an icy set-up for portions of the Ohio Valley and Mid West for the weekend. We still have some time to watch this, but the potential of significant icing is very much present for some and this will require a close eye through the week.