Chas­ing cloud in­ver­sions

Trail (UK) - - CONTENTS - Trai● says

QHow can I give my­self the best chance to see a cloud in­ver­sion? Abi Best●ey, York

Cloud in­ver­sions have to be one of the most mar­velled weather phe­nom­ena to wit­ness in the moun­tains, and it takes more than just chance to see one. Cloud in­ver­sions oc­cur when there is the per­fect mix of high pres­sure and cold tem­per­a­tures, so dense, cool air gets trapped be­low a thin­ner layer of warm at­mos­phere. Though rare, it is pos­si­ble to max­imise the like­li­hood of catch­ing a cloud in­ver­sion by wait­ing for the op­ti­mal con­di­tions.

The best time of year to catch such in­ver­sions (also known as ‘top clear days’) is through au­tumn and win­ter. Keep­ing an eye on the weather fore­cast be­fore your walk is para­mount, with ideal con­di­tions re­quir­ing high pres­sure, lit­tle or no wind, and zero pre­cip­i­ta­tion. You can also boost your chances by choos­ing the right hill. A sum­mit that is neigh­boured by shel­tered val­leys that draw in and trap the damp, cold air will be a good bet, as will a peak that is sur­rounded by a plateau. Lastly, it’s im­por­tant to get up top early! Reach­ing the sum­mit be­fore sun­rise will give you the best chance to spot a cloud in­ver­sion, be­fore the low-ly­ing mist lifts or evap­o­rates.

Newspapers in English

Newspapers from UK

© PressReader. All rights reserved.