After a month-to-date temperature anomaly map that looks like this:
…and a year-to-date that looks like this:
…sustained warmth is music to the ears of many Hoosiers! Thankfully, the balance of the upcoming (10) days will feature warmer than average conditions, as illustrated by the latest European ensemble data.
This will include multiple days with high temperatures rising into the 80s over the upcoming 10-day stretch (Tuesday and Wednesday and again next Monday through Wednesday).
As for storm chances, dry times will continue to dominate Tuesday with plentiful sunshine. Clouds will begin to increase Wednesday and we can’t rule out an afternoon shower, but most should still remain dry. Thursday and Friday will offer up the best chances of getting wet, including embedded thunder.
As for rainfall totals, it still appears widespread amounts will check-in in the half inch to one inch range, but a few locally heavier amounts can be expected.
Models continue to dry us out in time for the weekend and all of those important Cinco de Mayo/ Derby plans. An increasingly sunny sky will be with us along with highs in the middle 70s Saturday afternoon! Can you say “perfection?”
Looking ahead, I’m not sold we won’t have to deal with showers Sunday as a disturbance moves nearby (low confidence forecast from this distance). More widespread showers and thunderstorms will arrive on the scene late next week…
We also note the majority of longer range guidance trending warmer for May. We’ll have some updated thoughts on that later this week!
II. High pressure will build in for the second half of the weekend and remain in control of our weather through the first half of the work week. Dry conditions will remain along with a significant warming trend.
III. We’ll actually go above normal (for a change) through the early and middle parts of next week, including highs around 80° by Tuesday!
IV. Unsettled weather returns for the second half of the work week. Models differ on rainfall totals, but we’ll include mention of 7-day totals in the 0.75″ to 1.25″ range- most of which falls Thursday and Friday.
V. Cooler than normal temperatures will return for Week 2 so be sure to enjoy the warmth while we have it next week.
II. We’ll turn cooler to close the week, but with an increasingly sunny time of things, we forecast a very pleasant open to the weekend. High pressure will remain in control of our weather into early next week. Really the only item of interest will be a gusty easterly breeze at times Sunday into Monday. We’ll watch a storm system get shunted south and stay dry here. Overnight lows will remain chilly through the weekend.
III. The next opportunity for meaningful precipitation should arrive the middle of next week (Tuesday-Wednesday) time frame, and even this doesn’t look like a big deal. From this distance, it seems like 0.10″ to 0.25″ will come from that system.
IV. As we look ahead, the relative cold looks to relax as we put a wrap on April and open May. Additionally, we also note the EPS painting much of the northern tier into the Ohio Valley with a drier than normal signal. Sure looks like conditions are finally improving for #Plant18 to get underway in earnest…
More specific to Indianapolis, here’s the monthly temperature breakdown so far for 2018:
While we have conflicting temperature ideas, both suggest a drier than average month emerging:
At the end of the day, our call on May’s forecast from mid-April would be for an early cooler than average start before flipping towards more of a seasonable to slightly warmer than normal regime. Our idea all along this spring has been that when this pattern flips, the potential is present to jump right to a summery feel. In the face of the new European Weeklies, we still feel this warmer idea mid and late May is on the table. We’re in agreement with the data of a drier than average month.
It should be no surprise that the GEFS 5-day temperature anomaly shows widespread below normal air centered on March 22nd.
This doesn’t mean brief surges of warmth, originating in the southern Plains, can’t shoot into the Ohio Valley for a couple of days. Perhaps we’ll “luck out” and enjoy a briefly milder time for St. Patrick’s Day. This does, however, mean that overall we have a long, long way to go before “stick and hold” spring can arrive, locally, and the balance of the upcoming 2-3 weeks looks colder than average.