VORTEX2: June 5, 2009 - 25 days. Operations provided for in the field: operations in Wyoming. Miles traveled today: 500. Total miles traveled: 8075 .
Photography: Gino De Grandis.
After a day of recovery yesterday with today's the day we can finally say that Nature is starting to do his duty with depression in a beautiful depth to the west of the Rockies. Much of the next few days will be characterized by the slow progress towards the east of the low pressure that slowly, day after day will lead 'the humidity gradually' to rise from the Gulf of Mexico to the high pianure.Questo means that as of today almost all days until the end of the project scheduled for June 13 will be days of field operations.
The high pressure that has characterized the last days is slowly abandoning the field for today and the weather shows a vertical profile of wind is not particularly favorable in the first 2-3 km, but the marked difference between the wind in low levels and 30 -50 knots of wind present at high altitude, could facilitate the rotation of the time at least in the average levels of the atmosphere. Temperatures are expected dew quite low which means low humidity 'to the ground but the temperature profile rather pronounced (a good thermal gradient vertically) above the boundary layer will lead 'to have INSTABILITY' at 1000 J / Kg. It is expected therefore that some thunderstorms may develop in the south-eastern Colorado and southern Wyoming due to differential heating.
Photography: Gino De Grandis.
After a day of recovery yesterday with today's the day we can finally say that Nature is starting to do his duty with depression in a beautiful depth to the west of the Rockies. Much of the next few days will be characterized by the slow progress towards the east of the low pressure that slowly, day after day will lead 'the humidity gradually' to rise from the Gulf of Mexico to the high pianure.Questo means that as of today almost all days until the end of the project scheduled for June 13 will be days of field operations.
The high pressure that has characterized the last days is slowly abandoning the field for today and the weather shows a vertical profile of wind is not particularly favorable in the first 2-3 km, but the marked difference between the wind in low levels and 30 -50 knots of wind present at high altitude, could facilitate the rotation of the time at least in the average levels of the atmosphere. Temperatures are expected dew quite low which means low humidity 'to the ground but the temperature profile rather pronounced (a good thermal gradient vertically) above the boundary layer will lead 'to have INSTABILITY' at 1000 J / Kg. It is expected therefore that some thunderstorms may develop in the south-eastern Colorado and southern Wyoming due to differential heating.
After leaving Colby we move towards the west along Interstate 70 and passing through places that I again bring to mind the memorable hunting with the May 23, 2008 shows tornado Quinter.Il Lunch is eaten in record time to Byers in Colorado about ten miles east of Denver is then communicated to target the second largest city in the north of Greely fifty miles north of Denver. Meanwhile, at 2.30 pm the Storm Prediction Center issues a Thunderstorms Watch for most of eastern Colorado. The thunderstorms from late morning continue to form the Rocky Mountains, but when they reach the plains are dispelled by the presence of CIN (Convection Inhibition - Inhibition convection), there 'need more heat, but within hours the convention will take' ground in the plain.
The analysis of the latest maps shows that the conditions could be more 'favorable in southern Wyoming as well' came the order to move to Cheyenne, the capital of the least populated state in America. When we get some time in Cheyenne were finally developed to the north-east of the city 'so' is found Our target time at 17.20 reached an intensity 'as to compel the meteorological office in Cheyenne Thundestorms to issue a warning.
radars are positioned and began monitoring and collecting data.
convection is organized into four main cells in the most 'Western Europe is showing signs of rotation and features supercellulari. Vehicles of NSSL more 'near the base of the cell signal a short while we perform some landspout with our mesonet transects along a road that runs from south to north and collect data within the dual-Doppler radar lobes.
The storm, however, does not seem to go beyond nell'orgnanizzazione and after picking up a complete set of data is chosen corresponding to target a second time, in the meantime had suddenly developed in the north-west of Cheyenne.
In haste we refer to the west, despite the presence of the city ', all the radar are new positions. The storm seems more 'isolated examples and the rotation in the lower layers and' more 'evident from the radar data so that we can also form a wall cloud just above the city'. Almost all instrumental platforms are able to collect new data and is reported hail on the city 'as small as one inch.
When the storm then began to move away from the city 'heading towards uninhabited areas and roads with few options, there are more' opportunity 'for data collection and so' the small caravan of the probe led by our Hummer ventures on a long dirt road to try to stay in contact with the storm and be able to appreciate the features visually migliori.Il completely isolated landscape that cross along the 50 miles of dirt road and 'spectacular and species of antelope are hopping away as we passed at several points. Before to get to Sterling, the place chosen for the night, we have also the possibility 'to see some nice flashes with the lights of the sunset that you spend behind us.
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