Monday, 31 May 2010
Sunday, 30 May 2010
Saturday, 29 May 2010
Friday, 28 May 2010
Rather a marginal set-up for today's chasing - I think we'll probably head north or north-west of Rapid City, South Dakota. A slow-moving cold front may well have a wave develop on it, and with backed surface flow in the area, deep-layer shear may be sufficient for supercells to develop, if the cap can be broken.
Drove from Limon, Colorado, to Chadron, Nebraska today ready for possible supercells tomorrow to our NW...ate dinner at a very nice place called The Heritage Grill - anyone staying in Chadron in the future should check it out.
It's very windy outside at the moment (11pm) - winds gusting over 40mph and yet it's 24-25C!
Thursday, 27 May 2010
Drove from Amarillo to Limon today - a cell popped up near Springfield, CO, but soon died. A new cell developed to the west of Limon and become supercellular. We parked up to the north of Limon with a fantastic view to the west and saw several wall clouds develop. Very nice!
Wednesday, 26 May 2010
Tuesday, 25 May 2010
Bren got some great shots today!
Eventually got some storms close to McCook, NE, and then dropped south towards Colby, KS. Got a tornado-warned cell en route near Danbury, NE - got a wall cloud/RFD rain curtains just to our SW for a short time but soon lost it's structure - gave us a great display of mammatus and sunset colours though! Absolutely beautiful.
Now in Colby, KS - again! Heading south tomorrow for more storms towards SW KS or the TX/OK Panhandles.
Monday, 24 May 2010
Heading south back towards McCook - tornado watch for this area already.
Meanwhile, some pics from yesterday from Bren's blog:
Sunday, 23 May 2010
We're currently in Valentine, Nebraska - shortly we will head south towards NW or N Cent Kansas - a warm front lifting northwards should set the scene for thunderstorm development later this afternoon and especially this evening. Supercells are possible, with a small risk of tornadoes. The storms may grow upscale after dark as a strong low-level jet impinges on the frontal zone.
Enjoyable chase with plenty of lightning and some reasonable structure for a time - now in Valentine, Nebraska - it's 2.20am - we did 638.9 miles today!. Up and out by 10am in the morning to head to N Kansas.
We missed a big tornado in N South Dakota (just too far away), but we still ended up with some decent storms in S Cent S Dakota. One attempted to form into a high based supercell but couldn't quite do it - some nice structure for a time. We also met up with Pete (Scott), Steve, and Simon for a time.
As it just about got dark we headed east to get ahead of the line of storms, and one to the south was tornado warned. We found a great scenic overlook just off of Interstate 90, at Chamberlain. At this stage we were back in the warm inflow air, which was about 29-30C, with a 25-30mph SE'erly wind! This was at around 9pm or so!! We let the storms roll over us just to the east, in Kimball, when it became clear that the circulation had weakened alot. Plenty of CGs, including several very close ones.
All in all an enjoyable chase - we got storms in our target area, and so can't complain about that! It was always apparent that the northern area would be in line for tornadic storms, but it was just too far for us to reach.
Tomorrow, it looks like the cold front will stall somewhere in N Cent KS, and then start to return northwards. A dry line will be out in eastern Colorado/perhaps western Kansas. Storms should form close to the front and perhaps the dryline, and with good moisture, instability, and directional shear, supercells are possible.
Saturday, 22 May 2010
Friday, 21 May 2010
We've just got back to the motel after a nice dinner at Montana Mike's, here in Colby. This motel has a nice lounge area complete with leather comfy chairs/sofas, so I've headed down here for a decaf evening coffee to do a bit of surfing ahead of tomorrow's possible storms. Bren and Matt have joined me.
We've been chatting about some of the driving we witnessed yesterday in Oklahoma: much of it was absolutely fine, but a few chasers seem to think that possessing light bars and, in one case, a siren, allows traffic laws to be violated.
Anyway, that's all behind us now, and we're looking forward to attempting to intercept some storms in the more open terrain of the High Plains. I don't think we'll be alone, though, as there are other chasers about in the motel we're in. However, I think there will be many fewer than down in OK yesterday!
Will obviously refine the target in the morning but right now, I quite like the look of eastern Colorado, around the I-70 corridor. I think the area further NW towards the Cheyenne Ridge may be pretty good, but I wonder whether to try for a less obvious target, so we can get a nice, quiet chase in!
Arrived in Colby, NW Kansas - looking to do some high Plains chasing tomorrow.
It was a long drive today from Oklahoma City to NW Kansas...we headed north to Salina, and then west to Colby. The weather today was rather familiar, being rather UK-ish: stratocumulus clouds with temperatures of around 17-18C. Tomorrow it should get much warmer, and there is a risk of severe thunderstorms to our west and north-west.
Thursday, 20 May 2010
Wednesday, 19 May 2010
Just passing Sayre on I-40, in western Oklahoma. Triple point is to our NW, and towering cumulus has already been observed by us in its vicinity. This may evolve into thunderstorms over the next couple of hours, and will be in a very favourable environment for severe storms, and perhaps tornadoes.
We've left Amarillo and are currently heading eastwards on I-40. Looking to stop in Clinton or Weatherford I think - there is a remnant outflow boundary in the area and with the approach of an upper system, along with surface heating, the dry-line will mix eastwards towards that area. Strong low-level shear along with ample deep-layer shear brings the risk of tornadoes, some strong - the SPC has issued a high risk of severe thunderstorms for this afternoon/evening.
Tuesday, 18 May 2010
OK, so we've got everything set-up in the car - Baron system, DeLorme, GRLevel3, etc. Took a little while but now it's working. Just off to (hopefully) get a Kestrel wind device, and then to Limon, Colorado, where we'll re-assess. The moderate risk area has been extended northwards - the S/W trough appears to be a little to the north of earlier progs.
Hello! Well, we got here OK yesterday evening, and had a good night's sleep in the Sleep Inn at Denver. Just activated the Baron System (always seems to confuse them!!) and am now about to turn my thoughts to today, which looks like somewhere from SE Colorado into the TX Panhandle. A moderate risk for severe storms exists including supercells with large hail, damaging winds, and tornadoes.