PACRITEX Field Operations for April 25 2017:
Hicks and McGeough successfully documented a supercell in southern Kansas within a line of embedded storms. They successfully deployed CYCLOPS as they were driving and made cross driving cuts through the core updraft downdraft region sampling both areas. Results pending.
PACRITEX Field Operations for April - 15 2017:
Weak and shallow upslope flow near the Palmer Divide (DCVZ) was recognized late in the afternoon with winds backing due east along and just south the Palmer. The decision was made to target an area from KIT Carson, Colorado to near Eads, Colorado for storm initiation. Lanny was able to intercept and document the entire lifecycle of a small supercell and sampled the entire inflow region as well as the updraft/downdraft areas with the INPAR. Video of the sampling event below:
PACRITEX Field Operations for May 18 2017:
A triple pint play was expected to form across southern Kansas into Oklahoma with a sharp dryline during the period. Documentation of two tornadoes were observed near Great Bend, Kansas. Video forthcoming:.
PACRITEX Field Operations for May 16 - 2017:
Enhanced to moderate risk of severe weather and tornadoes was introduced during the afternoon and evening across much of the eastern TX panhandle and western Oklahoma during this period. Synoptically the environment was primed for possible strong tornadoes. The PACRTITEX team members intercepted a supercell near McLean, TX and documented two tornadoes. Video of that event if forthcoming. Of more interest was the successful deployment of the INPAR on a tornadic supercell just southwest of Elk, City Oklahoma. Full tornadogenesis was documented on video as well as acoustically. The free stream pressure drop was also documented just south of Carter, Oklahoma. The video below shows the full tornadogenesis of what would become the Elk City tornado. The video is shaky because inflow winds were roughly 50+MPH a that location. After the tornado passed, PACRITEX team members went home to home assisting in search and rescue efforts. Some of the damage can be seen in the video as well.
PACRITEX Field Operations for March 23, 2017:
Randy and Lisa could not make this event due to funding. Lanny targeted the upper end near the tripple point of the front, dryline, and low pressure. Lanny deployed the INPAR probe while Streaming Live to test the new pressure switch and electronics during a sub severe storm near Brady, Nebraska right after dark. Results pending.
PACRITEX Field Operations for March 26 2017:
The PACRITEX team convened in south central Oklahoma to try a test run of the electronic additions and upgrades to the INPAR probe. Storms initialized roughly just after 21-22z time frame after SPC introduced a Moderate Risk. Lanny and Randy targeted the area between the I-44 and I-35 corridors, specifically, Lindsay to Marlow, Oklahoma area. A lone cell erupted southwest of Elmer City, Oklahoma which soon became severe and a classic supercell. This cell was eventually tornado warned. The entire PACRITEX team documented the first few small tornadoes with video. Lanny was able to put the INPAR out and document the local static free stream pressure measurements near the updraft region. Readings obtained included pressure, temperature, acoustic and infrosonics.The Lowest pressure measured very close to the updraft base and the wall cloud was 954mb (free stream). Thus,the upgrades to the pressure switch were validated and verified. Video of the event below:
PACRITEX Field Operations for March 30 - April 1 2017:
Field operations continue on hold pending funeral services due to the existing circumstance of the deaths of friends/family.
PACRITEX Field Operations for - April 5 - April 14 2017:
"Downtime" writing code, engineering new data logger for the new temperature sensor and GPS for Cyclops probe. Prepping for next wave.
PACRITEX Field Operations for May 9 - May 15 2017:
Due to health issues, Lanny will be unable to participate in the field research due to recovery time. However, Latest model forecasts pinpoint a possible severe weather episode around the 14th -17th timeframe in the southern and central plains. Looks like May has finally arrived!
PACRITEX Field Operations for - April -4 2017:
Spent "downtime" writing code for the new temperature sensor and GPS - prepping for 4-4-17 event. A large upper level low pressure system and a very strong upper wave forecasted to impact the low pressure system. At the same time, an intense low level jet was forecasted to initiate severe weather in eastern/central Oklahoma, Southwest MO and points east. The SPC has issued an enhanced risk of severe weather and supercells. Forecast models and CAM solutions agreed with severe weather coverage/type. The PACRITEX team targeted central/eastern Oklahoma for this event. Initiation started roughly around 20-21z and the PACRITEX team documented a severe supercell and funnel near Drumright, Oklahoma. Full sampling of the free stream pressure, tempature, humidity and acoustics/infrasonics were obtained from the entire "hook" echo region, the wallcloud and funnel. Video of the event sampling below:
PACRITEX Field Operations for March 19, 2017:
The PACRITEX 2017 Field Project will begin earlier than expected, and will finally be underway March 23 through the March 26th timeframe. An upgrade to the electronics of the INPAR and an additional new pressure switch have been installed. Testing will begin on the 23rd. As such, a significant upper level wave is expected to possibly produce severe weather from the high plains states through the upper Midwest. Latest model data indicates a very strong H5 (500mb jet) crossing a very strong H85 (850mb) axis, Moisture quality and return seem to be the only issue at this time. However, Randy, Lisa and Lanny will be documenting this possible event. We have chosen to start the 2017 research after recent early tornadic events. More updates to follow.
PACRITEX Field Operations for March 30 - April -3 2017:
A large upper level cut off low and intense low level jet will intiate severe weather in eastern TX and LA however. The SPC has issues a moderate risk of tornadoes - some which could be strong to violent for this area. However, field operations continue on hold pending funeral services due to the existing circumstance of the deaths of friends/family.
PACRITEX Field Operations for May 8 2017:
Latest model forecasts are amplifying an upslope flow event near the Palmer Divide in eastern Colorado during the period. PACRITEX team members will be on this event as it unfolds, UPDATE: (MAY 8) PACRITEX members dcoumented a number of funnel clouds and wall clouds on two different supercells as they formed along the Palmer Divide. Acoustic/infrasonc as well as temp and humidity were doucmented as the funnels and supercells were in progress. video results below:
PACRITEX 2017 Tornado Field Research Updates And Information
PACRITEX Field Operations for July 1 2017:
PACRITEX operations ceased on July 1. We will now begin to work on upgrading and modifying the probes and internal sensors during the "off season". We are also in the process of writing the peer review paper for submission on our findings.
PACRITEX Field Operations for April 16 - April 26 2017:
PACRITEX did not participate in the severe event in Oklahoma and Texas, opting instead for the next event towards the end of this week. Spent "Downtime" engineering and upgrading of GPS unit on the INPAR and installing the pressure switch and GPS unit for Cyclops. Forecast for the 4-27-17 and 4-28-17 time frame look interesting with possible cutoff low and possible multiday high-end severe event. Although this event is still 7 days out, Kansas and Oklahoma look to be the targeted areas at this time. The entire PACRITEX team will be participating during this event. More info to follow as we get closer to the time frame. Video of the tornado probe building process and some upgrading below:
PACRITEX Field Operations for May 1 - May 5 2017:
Forecasts period clearly shows omega block pattern with very limited potential for severe weather across the US. PACRITEX will take downtime waiting on next system. PACRITEX has been selected and recently hardware sponsored by SparkFun. We are excited for the opportunity to showcase their products and appreciate their sponsorship!
PACRITEX Field Operations for March 28 2017:
Lanny targeted the triple point dryline intersection neat Matador TX and points south Documention of one or possibly two tornadoes occured south of Matador, Texas, and one just west of Matador, TX. However no data sets were collected near the tornadoes. Local free stream pressure was documented roughly 6 miles from the tornadic supercell. Unfortunaly three storm chasers persihed in a vehicle accident during this event near Spur, TX. All three were friends of ours and we send the familes condolices. Video of this event coming soon.
PACRITEX Field Operations for March 24, 2017:
Randy and Lisa targeted the southern end of this severe event near Mena, Arkansas. They documented an HP supercell (High precipitation) within the line of severe storms. Unfortunately, no probe data results were obtained from this event. However, Sunday looks to an active day across parts of Oklahoma and Kansas. Another significate H5 wave and expected low pressure system is forecasted to cut off with an established dryline setup across Oklahoma. Most of the Pacritex members will be on this possible event. More updates to follow.
PACRITEX Field Operations for April 27 - April 29 2017:
Forecasts period only gave way to moderate instability and a very marginal risk for severe weather across western Kansas and eastern Colorado due to a low pressure system to start the period. Dean and LaTour targeted this marginal risk area and documented a lone severe storm/supercell that was tornado warned near Syracuse, Kansas. This supercell produced two funnels and a full data set (temp, humidity, infrasonics and pressure perturbations were collected near the updraft/downdraft region as well as the inflow notch area. They successfully deployed the INPAR on three separate occasions in and near the supercell. Video of the successful deployment process below:
PACRITEX Field Operations for June 12 2017:
Moderate risk for tornadoes across much of eastern Colorado, Wyoming and Nebraska. Upslope features mixed with a frontal boundary and a very strong short wave led to a mixed bag of supercells and tornadoes. The PACRTEX team members documented roughly 5-9 tornadoes across the tri-state areas. Although the team documented many tornadoes, we were unsuccessful at any deployments.
PACRITEX Field Operations for March 29 2017:
Field operations have been placed on hold due to the existing circumstance of the deaths of friends/family.