Manual Placa Mae Mv42v1.3

supercells, funnel, hail Creswell-area VC-

the afternoon of July 17 is the expected passage of the southern branch of a trough that, even if it takes the input a real face, she may still be sufficient for the birth of thunderstorms in the Po Valley.
Given the enormous amount of energy present, the values \u200b\u200bof CAPE high, very high dew point, expect thunderstorms updraft with explosives, including large hail and strong gusts of wind.
Thanks to the likely creation of orographic minimum, the shear present (rather bland if taken by itself) can be greatly accelerated, opening the possibility for the development of supercells. Considering all these factors, including the fact that the basis of time will be very low because of high humidity on the ground, not be ruled out even the risk of some whirlwind.

At about 4.30 am the first prefrontal develop on the foothills of Lake Maggiore, Biella, Varese and Novara high plains.
At 10.15 arrive at the station my friend Edo, who came from Biella to the hunting day. Expect others in the group at 12.30 and we move to Vercelli, our target. In all, we are five people: me, Edo, Mauro, Torino by Andrea and Alessandro Vercelli.
arrive at the target to 13.15, we enter in a "waiting": those who buy a sandwich to eat, those who drink a coffee ...
half hours go by and the situation with a satellite is quite "tragic": no accumulation on the horizon, only washes and cirraglia not very comforting. We hope and trust into the INPUT of the cold air, which should be after 16 or so.
Our good faith is hampered by the heat and the temperature around us, and when not to the past 15 hours we see no signs of instability vague, we begin to lose heart a lot. When refresh
now all of the satellite are continuing utterances unhappy and unorthodox, finally, it seems there are several mounds along the Alps. So from nothing, around 16.30 a pile in the west began his climb to the top and soon becomes a massive cumulonimbus cloud. We climb in the car and immediately to the south, we go out to the first exit after the Autogrill and continue along the road to the west. The stages is nearly perfect: an infinite expanse of paddy fields with good visibility long.
Soon as we get closer, we denote the characteristics of a supercell den-defined, with clear records supercellulari. We stopped to take pictures several times, only to end up in San Genuario. From here, finding no good options road, we ran into a dirt country road. Fortunately the road is on Google Maps, then led the group along the deserted street in the middle of nowhere. We stop along it to take pictures: the meso is really close, try to funnel several attempts, including a lot of big and not too far from us. If the tornado had touched down, he would not many fields away from our position.
rainfall lapping the edge of the meso approach cloud to ground lightning and falling behind us. Down the first small hail: it's time to move. We share a long dirt road, which seems like a perfect direction .... ... until it was shut ahead with bar and padlock. Such a situation, in a position like ours can be very risky. Unfortunately we can not do is go back ... start falling hailstones thick, 2 cm, then thinner and thicker, about 3cm. While running away, try an alternative route after leaving from San Genuario. Meanwhile, we think the big funnel that could touch the ground: if he did, he would have just moved to us and when we tried to leave, we would have been literally trapped with the road closed ....
Once out of the rain we stop to take pictures at the meso from the back: we see a big funnel leaning toward the ground, in those moments you may have been a tornado with a quick touchdown.
out of town taking the road to the west, the direction of the Trinity. Skirt so that the updraft, however, after few minutes, seems to be weakening. After a quick consultation, we decide to go back to Creswell, in the direction of a supercell just behind the 2nd one just died. As we approach we see again a very nice structure, even if the base is significantly higher than 1, supercell, which has eaten of the moisture. We stopped taking pictures and this, having more input on the plain, began to die. Later they form a new cell to the west, more or less always in the same areas. From a distance it appears to be a small LP. We get closer to take pictures, but weakens gradually more and more, slowly evaporate.
now the sky is much more clear than before, the cold air has done its duty and "our" time is over. We continue our way home after mesocicloni striated structures truly beautiful and hardly visible to the NW here in the Po Valley.