JasonOH
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Everything posted by JasonOH
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There's a big time flash flood threat behind this supercell. It's dumping a ton of rain and more storms are popping along the OFB behind it and training along the path. I expect some really bad flooding to occur tonight.
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Looks like it will go south of Hattiesburg. Looks to end up very close to Camp Shelby.
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Tylertown storm is really improving its presentation. Hook is becoming evident and the inbounds (outflow) are ramping up like the outbounds (inflow) have been the last few scans
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Leesville, LA got a TDS.
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I don't think that's surface based so there shouldn't be a huge tornado threat from it
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I'm betting it lofted a bunch of leaves. Plenty of trees in that area and leaves are super easy to lift high.
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TDS very evident on the LA cell.
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Cell in LA also produced. Quite the CC drop on it
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Bit of a CC drop on the Texas storm. Spotter confirmed tornado.
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Already a large area with greater than 2500 J/Kg of MLCAPE south of the warm front. Definitely a volatile environment if surface winds are not veered and storms can form.
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I have a feeling the HRRR is really overdoing they mixing of the boundary layer. There is not any other model support for mixing of that strength and I find it pretty hard to believe it will happen with the quality of moisture. Some mixing will happen, but not as much as the HRRR is modeling.
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Sometimes that’s a sign that the storms are modeled to be elevated, similar to a lot of the crapvection last week. WAA loves to force elevated convection if there is a layer that supports it.
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This link will work for any office. https://www.weather.gov/jan/dat_redirect
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TDLR: Officially prelim 190 mph on the EF4 and 150mph on the EF3. More detailed info tomorrow. Adjustments are possible over the coming weeks.
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That puts it as the third widest on record behind El Reno 2013 (2.6 miles wide) and Hallam, NE (2.5 miles wide).
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This was the strongest tornado since Rochelle in 2015.
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Up to 190mph and 3960 yards based on the viewer.
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Reverse image search yielded nothing on that tree damage pic. I think we can say it’s likely legit.
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Walthall county tornado rated 170mph EF4.
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I wonder if they can only do the lower bound of DOD10 without a review to determine the actual wind speed. More info from a friend: EF4 and above and they typically need to call in a Special team to make the final determination. That would explain the lower bound usage and why it’s being checked again.
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From the damage assessment toolkit. Bassfield EF4 was 2 miles wide
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Great twitter thread about the NWS warning process for at embedded supercell that produced the crazy radar imagery last night in SC.
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Since I was confused earlier here is a tweet with the tracks
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Bassfield is a prelim EF4. The trailing tornado is prelim EF3. (Thanks to Andy for the correction. I got my counties all messed up)
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Tweet about the house that slid. Looks like it was unanchored on cinder blocks.
