6/16/07 NOW: MT/ND/SD/WY

[Billy Griffin]

Been driving ALL day and still can't seem to catch up with this cell north of me. Stopped for a quick data look in Ft. Benton, MT. One heck of a structure north/east of me, but it's hauling it!

I think that's Hill County north of me that's under a T-stm warning.

 

[Billy Griffin]

Just might catch up with this one yet! This is really high desert country out here. It looked farther away than I think it is. Will continue NE on 87 to intercept.

 

[Mike Hollingshead]

Sitting just east of Rapid City SD. I'm hoping some upslope on these hills can get it done. You can see cu forming directly ahead of the hills on satellite now. Pretty cool.

 

[Michael O'Keeffe]

I agree with Mike. I am near Wall, SD heading west on I90. I think with the extreme CAPE and suffient moisture once the storms fire and move off the hills they will become surface-based and likely tornadic with guerilla hail. There are also some cells developing in the mountains out in Wyoming as they move east they will also become surfacedbased, but moisture is as plentiful in that region. So we will position east of the hills maybe more of a northeast direction. Good luck to all chasing today!

 

[Joel Wright]

That cell in north-central Montana west of Glasgow is a monster! That thing has to be dropping some tremendous hail. DBZ core is amazing. Strong southeast winds can be seen on radar just roaring into that thing.

 

[HAltschule]

That cell in north-central Montana west of Glasgow is a monster! That thing has to be dropping some tremendous hail. DBZ core is amazing. Strong southeast winds can be seen on radar just roaring into that thing.

That supercell is a monster. 2 Distinct TVS indicators. 4.00" hail markers too. Storm is isolated with dbz values in excess of 80. This is going to be a long lived monster. Watch out Glasgow, MT.

 

[Chad Cowan]

The TOR warned cell in Johnson County, WY is in a radar black hole... it's 120+ miles from the nearest radar site.

 

[David Draun]

That supercell is a monster. 2 Distinct TVS indicators. 4.00" hail markers too. Storm is isolated with dbz values in excess of 80. This is going to be a long lived monster. Watch out Glasgow, MT.

My GRlevel 3 has a 243 kt TVS on that thing! That has to be an error! Looks like it's becoming outflow dominant though. Nasty bow echo entering Glasgow!

 

[Mike Hollingshead]

In the park at Devil's Tower, mammatus starting to spread over the tower. I like. Storm looks like garbage though.

 

[Mike Hollingshead]

In the park at Devil's Tower, mammatus starting to spread over the tower. I like. Storm looks like garbage though.

Jinx on the mammatus moving over the tower.

 

[Mike Hollingshead]

Jinx on the mammatus moving over the tower.

Ah, sick sunset here now at Devils Tower.

 

[HAltschule]

My GRlevel 3 has a 243 kt TVS on that thing! That has to be an error! Looks like it's becoming outflow dominant though. Nasty bow echo entering Glasgow!

Glascow, MT ASOS measured 62mph winds. 3.00" hail and lots of wind damage in the city itseld. Reports of a tornado sighted too. NWS Glasgow had 2" diameter hail at the office.

 

[David Draun]

Looks like the monster is starting to die down a bit. Down to about 60 dbz now. No more SVR/TORs on it, but still some MESO markers. Whoever tracked this thing today probably had a great show!

 

[Jay Cazel]

As I speak, sitting in my hotel room in Keystone SD on holiday with the family, wife wont let me go out ! But a very nice lighting show.

I was in Custer SD about 3 hours ago and did get some small hail..

 

[Mike Hollingshead]

Oh my god I can't believe this...getting staccato bolts behind devils tower. GOt one less than a mile riht behind the thing. THis is nuts. This tiny storm is spitting them out like mad offering such a crazy treat.