Category: Forecast Models
Many central Indiana neighborhoods are still in the 40s as of this update. Officially, the high so far today at IND has reached 50 and is more than 20 degrees below where we should be for this date.
The upper low continues to swirl over Iowa this afternoon and will help push a band of showers into central Indiana during the wee morning hours Friday. Additionally, the threat is there that a couple of the stronger showers Friday afternoon include some small hail with added instability and the very cold air aloft.
As we look ahead to the second half of May, don’t be surprised by a repeat performance in this weather pattern. We think brief ridging will be responsible for highs above the 80 degree mark the middle of next week, but the stage may be set for another stretch of unseasonably cool air to wrap up the month…. Additional details can be found in the video!
Permanent link to this article: https://indywx.com/thursday-evening-update-repeat-in-the-pattern-coming-to-end-may/
The remainder of the work week will feature plenty of rain and well below normal temperatures.
A surface wave will move up along a cold front today into Thursday and be responsible for widespread rain, some of which will be heavy, across central Indiana. Additionally, severe thunderstorms, including possible quick spin-up tornadoes, will be possible across far eastern Indiana and Ohio this afternoon and evening.
Note the forecast radar stays rather busy in the hours ahead!
Area additional rainfall total will reach between 1-2″ between this morning and Friday afternoon.
The other big story is the chill. Temperatures are drastically cooler this morning than what we’ve gotten used to the past several days, and the step down process will continue. We still think most of Thursday is spent in the 40s.
Permanent link to this article: https://indywx.com/promised-wet-chilly-pattern-here/
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Filed under 7-Day Outlook, Forecast, Forecast Discussion, Forecast Models, NAM Model, Rain, Severe Weather, T-storms, Unseasonably Cool Weather, Weather Videos
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May 13, 2014
Note how dramatic of a temperature shift is occurring to our west- temperatures are down more than 30 degrees from this same time last night.
That cool air will filter into our region tonight and Wednesday. As a matter of fact, we still think Thursday has the potential to remain in the 40s for the better part of the day. The video below has more details on this and a look ahead to continued rainy times.
Permanent link to this article: https://indywx.com/tuesday-evening-video-brief-the-cool-down-is-on/
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Filed under 7-Day Outlook, Forecast, Forecast Discussion, Forecast Models, Heavy Rain, NAM Model, Rain, T-storms, Unseasonably Cool Weather, Unseasonably Warm
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May 13, 2014
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Thr.
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Fri.
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Sat.
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67/ 80
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50/ 67
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45/ 52
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40/ 56
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41/ 57
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39/ 62
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43/ 65
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Light
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Moderate
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Light
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Light
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Light
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Stepping outside this morning you would think it was July or August. Unseasonably warm conditions are coupling with dew points in the middle to upper 60s to help create quite the muggy feel to the central Indiana air mass once again. This will help fuel showers and heavy rain producing thunderstorms today, especially during the PM. Perhaps the most widespread rain and thunderstorms will arrive Wednesday into early Thursday as a wave of low pressure moves up along a cold front that will be just east of our region by that time frame. We still forecast locally heavy rainfall amounts during the course of the next 48 hours, including widespread additional 1.25″-1.50″ totals. The other big story will be the dramatically cooler temperatures that filter in tomorrow. We’ve called Wednesday our transition day and that remains our idea now, as well. Temperatures will likely fall through the afternoon and evening hours. Speaking of cool, temperatures will remain in the 40s for the better part of your Thursday (hope you haven’t put those jackets and sweaters away just yet)! We’ll slowly begin to shake the showers and clouds over the weekend and have trended more optimistic for Sunday’s forecast into early next week.
Most widespread shower and thunderstorm activity will likely occur Wednesday into early Thursday.
Permanent link to this article: https://indywx.com/showers-and-storms-then-much-cooler/
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63/ 82
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66/ 77
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52/ 60
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44/ 56
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42/ 55
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37/ 60
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38/ 60
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Light
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Light
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Moderate
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Light
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Light
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Light
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Light
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The new work week will feature a very stormy and unsettled weather pattern. While everyone won’t get wet today, we do note the likely chance of afternoon thunderstorms bubbling up during the heating of the day. Like Sunday, any of these storms could feature torrential rain and could quickly pulse to severe levels. More widespread rain chances will arrive Tuesday into Wednesday in direct association with a cold front. The long advertised cooler pattern will arrive behind this front and set up an unseasonably cool time of things to close out the second half of the week and head on into the weekend. Rainfall totals this week will average an additional 1.25″ to 1.50″ with locally higher totals. As for temperatures, we’ll go from well above seasonal levels today (8-10 deg. above normal) to well below seasonal levels by mid week (20 deg. below normal).
Forecast radar at 2:00p today, via the short-term high resolution HRRR forecast model.
Permanent link to this article: https://indywx.com/unsettled-and-stormy-turning-much-cooler/
