Friday, March 4, 2016

24 Feb 2016 - Eastern NC

24 Feb 2016

Initial Target: Fayetteville, NC
Actual Target: Fayetteville, NC
Starting Point (SP): Murfreesboro, TN 0300 CST 24 Feb
Ending Point (ENDEX): Pinehurst, NC 1905 EST 24 Feb
Storm Intercepts: Stedman, NC
Tornadoes: 0
Hail: Pea Size
Wind: Unknown, like close to or above severe limits
Miles: 712

Summary: First chase of 2016. I was traveling to NC that day anyway to visit my mom for a few days, so I decided to get some chasing in while I was there. I had been watching this system ever since the NAM came into range. Targeted the Fayetteville, NC area. Forecast verified but execution was nearly botched as I spent too much time napping at a truck stop in GA. Still was able to make it north of Fayetteville before realizing I would never catch the storms to my west. Saw another storm mature to my south and doubled back to intercept. Only had 5-10 minutes to observe before the storm raced off to the NE but had a good lowering with great motion. It just didn't quite produce. Called it a chase and drove back to the west to my mom's house.

Crew: No chase partner

Equipment
Vehicle: 2009 Nissan Titan SE 4x4
Camera: Canon Rebel XTi
Other Electronics: Dell Latitude E6430 running Win 10, Samsung Galaxy Grand Prime, Samsung Galaxy Note 4

Map: (Map is somewhat off in the area of the storm intercepts. My changes to my route on google maps did not make it over to the embed tool)


Details:

An early season pattern had set in, with much of Dixie being impacted by severe weather the previous day. I was planning to travel to my mom's on Wednesday, so I decided to go chase while I was on the road. Everything I had seen model wise pointed towards a Fayetteville, NC target, so I decided to travel through Atlanta to get there due to the route being primarily interstate.

I left Murfreesboro, TN around 0300 CST, finally getting through Atlanta somewhere between 0800 and 0900. I continued east on I-20 before pulling off to rest about halfway between Atlanta and Augusta, GA. This nearly cost me as I slept for about 30 minutes longer than I wanted to, and it was nearly 1330. As I neared Columbus, SC, storms started going up and I managed to push east to the I-95 corridor ahead of them. From there I just tried to get north as quickly as I could reasonably do so.

After getting about 20 minutes north of Fayetteville, I realized I would never catch the storms that had impacted areas just west of Fort Bragg, and found a storm just getting to Lumberton. I doubled back for an intercept and waited in Stedman. After sitting at an old neighborhood Walmart parking lot, I realized I was a little closer to the path than I wanted to be, and pushed about a mile farther east. Due to the pine trees, I had to pick and choose where I set up but found a few areas with a decent view. Even then, storm motions were in the 60 kts range, so I only had about 5 solid minutes of view.

From my vantage point at the old Walmart, I could see rotation, but did not have a clear view of the lowering.



Once I moved east, I did not have a good view until it crossed NC-24. From there it was fully in view for longer than I expected, but eventually rain wrapped around and got in the way. Despite the lowering and substantial rotation I observed, I did not see any part of it make contact with the ground. Nor did I observe any signs of damage when I went back through Stedman. I only encountered minor hail, but I did catch a nasty crosswind from the next storm in line as I drove back to the west to head for Mom's.








After this point, I called it a chase, and drove the remaining distance to Mom's. All in all, not a bad chase. Good forecast but definitely could have been better on the execution.

After Action Review:

I made an excellent forecast, and put myself into the right area. I nearly botched the execution when I napped to long, however. That said, it was a good chase, and I came very close to breaking my tornado-less streak. Mother Nature just didn't quite cooperate.

Sustains and Improves:
1. Forecast was spot on. Efforts to improve paid off
2. Don't nap too long. This nearly caused me to miss the entire show.
3. Did a good job evaluating my position and adjusting when I felt it could be too risky. Despite the rapid storm motions, the decision was made early enough that movement was accomplished with plenty of time to spare.

12 Dec 2015 - SW OK/TX Panhandle

12 Dec 2015

Initial Target: Altus, OK
Actual Target: Clarendon, TX
Starting Point (SP): Yukon, OK 1100 12 Dec
Ending Point (ENDEX): Yukon, OK 0100 13 Dec
Storm Intercepts: Clarendon, TX
Tornadoes: 0
Hail: None
Wind: Not Severe
Miles: 476

Summary: Late season chase that was foiled by cloud cover all day. Attempted to recover to the west when storms fired west further west than expected, but ran out of time and storm mode changed before we could get to the storms that did fire.

Crew: Myself and Bobbi Burrows

Equipment
Vehicle: 2009 Nissan Titan SE 4x4
Cameras: Canon Rebel XTi
Other Electronics: Dell D610 running Ubuntu OS, Samsung Galaxy Note 4

Map:



 Details:

A rare late season pattern on the southern plains had taken hold, which had produced severe weather in November followed by an ice storm and a revert to warmer temps for the early to middle parts of December. It was a tricky forecast, with little or no consistency from one run to the next. With each passing day, I had to shift my forecast further and further to the west. I woke up the day of and decided on Altus. Drove to Lawton to pick up Bobbi Burrows, my chase partner for the day, and we headed west on US-62 towards Altus.

Once in Altus, we stopped at McDonald's where we used the WiFi to keep an eye on the surface observations and satellite imagery. We stayed there for a few hours while we waited (too long, in retrospect) for the cloud cover to break apart. Once initiation occurred, we found ourselves over 100 miles too far to the east. Dew points were lower that far to the west, so it never crossed my mind that it would happen that way.

We shot west but by the time we got to Clarendon, storm mode had become much messier and there wasn't a whole lot to see. With that, we turned around and headed back towards Lawton. After hanging out for a while with Bobbi and her husband, I finally headed home and got there around 0100.

After Action Review:

I made what I thought was a decent forecast, but sustained cloud cover throughout the day killed any chance at discrete storm development. There just wasn't enough instability. I also discounted the possibility of action over the Texas Panhandle where the dew points were considerably lower. Had I considered that possibility, I could have gone west with enough time to recover and catch the storms while they were still discrete.

Sustains and Improves:
1. Unless the air is bone dry, never discount the TX Panhandle.
2. When cloud cover stays together over your target, adjust accordingly.
3. Model reading is improved, but I still have a long way to go.