Still watching the model trends tonight…which have lessened the tornado threat just a bit.
Showers and storms will continue to move throughout the state tonight, some with hail and isolated pockets of damaging wind. After late morning to early afternoon that should move into far N/NE OK. So expect a stormy commute in the morning across OKC.
A strong upper system will invoke a region of low pressure across SWÂ OK which will lift a warm front northward. Storms near this boundary will need to be watched carefully. South of this front will be a dryline which will also need to be monitored by late afternoon.
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Where the front, dryline and surface low setup is key to this forecast. Unfortunately the latest models are now at odds and we may not know until the morning. The NAM model with its 4km and 12km counterparts differs much more than before. One has 2 areas of low pressure, the other just one. If the main low stays in SW OK, then the severe threat is mostly confined down into SC OK and parts of N TX.  If the front lifts north as the other model suggests with a low in SC KS, that takes the severe weather threat with it back into C OK. The different solutions are posted.
Double low shown by 12km NAM. Low near Lawton would travel up the turnpike to OKC bringing the threat to C OK by early evening.
Single stronger low in SW OK over Lawton traveling more E keeping the warm front south of the greater OKC metro.
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All modes of hazardous weather will be present in any late afternoon/evening storm that forms. Hail, wind, and tornadoes. In the morning, the surface pattern will start to show itself so we’ll have a better idea on where those key features will lie. Regardless of the final placement, just remain calm and have a plan in place and you’ll be fine. Remember, statistics are on your side. Always get to the lowest floor, center part of the building you are in. The idea is to put as many walls between you and the outside that you can. Also please don’t let the results of Tuesday prevent you from taking this potential outcome seriously. Just plan anyway.
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The 12km NAMÂ model shown below continues to indicate a favorable thermodynamic setup for tornadic supercells. The location will likely move around a bit, but still looks centered across C OK. Timing for severe storm development at this point is anytime after 3pm, and could end up being fairly late closer to 6pm.
Tornado parameters still high across the OKC metro. So stay vigilant.
Sounding has backed off of the extreme PDS Tornado category, but still indicates potential for trouble.
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I’ll post one final update in the late morning. -AT
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Aaron Tuttle is a degreed Meteorologist residing in Oklahoma City. He provides forecasts and severe weather coverage to the state of Oklahoma and beyond. Download his free app, ATsWeatherToGo today.
Yesterday was a big day concerning severe weather. 70 tornadoes were reported. Parts of Little Rock were hit as well as other towns and cities. Always have a plan of action when severe weather strikes. For tornadoes, it's always the lowest floor, away from all outside walls and windows.
You warn and warn and warn and there are always people who seem to think they are invincible. I cannot believe the videos I've seen from people looking at it like it's a pretty rainbow or something and then they almost die.
Where would you go if you live on the top floor of a apartment? If your apartment is on top of a garage would the garage be a safe place to go ?
My husband and I have been watching and it seems that the states east of OK have been hit more harshly in the past few years. I have heard that the magnetic polar north is shifting and wondered if you thought they were related?
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