Category: Storm Chase

  • 23 May 2010 | Northwest Kansas | Storm Chase

    23 May 2010 | Northwest Kansas | Storm Chase

    Day 3 in Kansas was a bit of a bust for us. As we drove south through Nebraska, we found ourselves behind the TIV crew as the dryline was beginning to brew in western Kansas/Eastern Colorado.

    As we dropped south toward Hoxie, Kansas, cells were beginning to go severe. We noticed a caravan of chasers heading west toward Colby. However, a couple frames of radar convinced me not to head west, but to continue south and then east in hopes of heading off a storm that I thought was turning right. It was a huge mistake. Shortly after that last radar loop, the cell I was watching was consumed by another to its west. From then on all storms that exploded along the dryline raced almost directly north at 40 to 50 mph. By then, I had placed us 75 miles too far to the east. Soooo stupid. Meanwhile spotters were reporting tornadoes along the dryline, screaming northward. I tried to salvage the situation, heading north and west to try and catch something–anything, but it was too late. By the time we reached the conveyor belt near Atwood, the sun was setting, and it was getting to hazardous to intercept.

    So we hung out on US-36 listening to radio reports and catching radar whenever we could get a connection. As night fell, a couple tornado warned supercells lit up the sky, moving up from south. As the storms crossed north of our road, we had a clear view of their structure as they were almost continuously illuminated by lightning.

    Although we missed out on any tornadoes, I learned some lessons about forecasting storm motion, and being cautious about how much I bet a sizable drive away from the boundary on just a couple frames of radar. And we did get a stunning light show to cap the day.

    SPC Report for May 23, 2010

  • 21 May 2010 | Lingle-Lusk, Wyoming | Storm Chase

    21 May 2010 | Lingle-Lusk, Wyoming | Storm Chase

    On Thursday night, May 20, we took I-40 from Flagstaff to Albuquerque and then headed north on I-25. We grabbed sleep at rest stops and off ramps along the way. By noon, we were bogged down in traffic in the heart of Denver (what a mess). I figure we lost about an hour trying to pierce the heart of the city instead of taking one of the outside routes.

    North of the city, we had a bite to eat at Wendy’s while strongly sheared cumulus tried to pierce the CAP along the front range. The tough part was trying to decide where initiation would take off. Decent CAPE, shear, and a frontal boundary were setting up in southeast Wyoming, so we got back on I-25 and headed north. As we approached Cheyenne, Wyoming, radar showed cells getting healthy along I-25, further north near Wheatland. One cell pulled its act together and started peeling away to the east-northeast. In an attempt to parallel and get ahead from the south, we broke northeast on Hwy 85 toward Torrington and Lingle.

    As we approached Torrington, the supercell dominated the sky to the north like a great hen roosting over her clutch with features gradually resolving along the base.

    As we entered Torrington and headed toward Lingle on US-85, trees and buildings demolished our view, however, upon clearing some trees about 00Z, we got a sudden and stunning view of a wall cloud and what appeared to be a funnel silhouetted to the northwest. When in silhouette, it’s not possible to determine rotation, so at the time, all we could do was film it and see if we could catch up.

    Video frame grabs:

    The SPC report later confirmed two tornado touchdowns northwest of Lingle at 23:55Z and 00:01Z. So I’m confident that the feature we saw was indeed a funnel–whether it was a tornado at the time we saw and filmed it, I couldn’t say.

    We took US-85 north of Lingle, and caught fractured glimpses of the disintegrating wall cloud between otherwise stunning, hilly terrain. When we finally caught up to it, the wall cloud was gone, although the base was still slowly rotating. A deep, turquoise light emerged from within.

    Road options were seriously limited, so we couldn’t follow this one as it tracked to the northeast. So we continued north on US-85 as other storms erupted.

    North of Lusk on US-85, we drove beneath an enormous, beautifully lit shelf cloud. 

    This time lapse video shows motion of the shelf cloud and lowered inflow base:

    Illumination beneath this storm was surreal and bathed the Wyoming landscape with a dream-like light.

    After nightfall, we spent some time in Lusk, looking for a good place to stay the night and getting pelted with nickel and some quarter sized hail. Every room in Lusk was taken, so we drove on to Chadron, Nebraska and tried to rest up for our next day in South Dakota.

    SPC Report for May 21, 2010

  • 5/12 August 2009 | Oklahoma/Arizona | Lightning

    5/12 August 2009 | Oklahoma/Arizona | Lightning

    We’ve enjoyed some evening lightning lately–the best kind of fireworks.

    This first shot was from Edmond, Oklahoma on August 5, 2009. While sitting outside, we watched as a line of anxious cumulus to the north finally pushed their way through the cap and sprouted a healthy storm. The frequent and constant lightning illuminated the crisp, sculpted edges of the cloud and occasionally revealed bright stitching as warped streamers fell from the sides.

    SubjectCumulonimbus and Lightning
    LocationEdmond, Oklahoma, USA
    DateAUG 05, 2009; 10:07 PM CDT
    EquipmentCanon EOS 300D + Kit Lens
    Settings30 sec, f/9.0, 18.0 mm, ISO 800
    ProcessingNoise reduction, power line removal, contrast & color management in Photoshop CS3

    This next shot was taken from home earlier this evening as a storm was pushed north by a line of convection along the Mogollon Rim. Flagstaff doesn’t often see evening lightning displays since the storms fire up earlier in the day before racing off to the lower elevations leaving more stable air behind for the rest of the night. That wasn’t the case tonight and we saw some brilliant webs of light igniting the sky to the south.

    SubjectLightning
    LocationFlagstaff, Arizona, USA
    DateAUG 12, 2009; 08:26 PM MST
    EquipmentCanon EOS 300D + Kit Lens
    Settings30 sec, f/9.0, 18.0 mm, ISO 200
    ProcessingNoise reduction, contrast & color management in Photoshop CS3