Mark Vogan
An extreme pattern evolved this weekend just as Nate came ashore on the Gulf Coast, the 4th US hurricane landfall of 2017. A 2nd unusually deep, cold trough has dove down the Rockies and brought the first snowfall of the fall to Denver but an equally anomalous downstream ridge means summer lives on. In these extreme cases, you get a […]
The Atlantic parade continues with three lows set to sweep bands of wind and rain across the UK this work week. Most prominent in N/W, least in S/E. However, as the remnants of Nate lifts it’s energy and associated heat up into eastern Canada, the jet stream shall amplify with a deepening trough to the […]
Friday saw temperatures climb to a new October threshold of 37.7C at Alvega, Portugal. However, Saturday saw temperatures exceed Friday’s value with a new October record of 38.5C at Alvega. Tmax 06/10/2017 #Portugal38.5°C Alvega, NOUVEAU RECORD NATIONAL DE CHALEUR POUR UN MOIS D'OCTOBRE !37.7°C Santarém37.3°C Alcácer do Sal pic.twitter.com/BGKDreRrRI — Etienne Kapikian (@EKMeteo) October 7, […]
An unusually trough for early October dove into the Northern Rockies earlier in the week and has delivered a record breaking snowstorm to Montana. With upwards of 30 inches falling near Havre, this is the state’s largest snowstorm on record for this early and with trees still in leaf, widespread severe damage has occurred. In […]
Nate is currently a 45 mph tropical storm which is now back over water and in fact the warmest, deepest water of the Caribbean Sea. This system formed within a large scale regional system call a ‘Central American Gyre’. Unfortunately this large envelop of enhanced convection along with Tropical Storm Nate has triggered deadly floods […]
The same low which crossed the British Isles a couple of days ago, exploded over central Europe yesterday bringing widespread travel chaos and damage with countless trees downed during a spell of hurricane-force wind gusts. As the low pushed into Europe, it appears Shapiro-Keyser-Cyclogenesis occured with frontal fracture which allows injection of warm, moist air […]
As expected, TD 16 has been spawned from a Central American gyre. This looks to be trouble for not just Central America where rainfall will be prolific but also for the US. Modelling points to a hurricane landfall along the Gulf Coast somewhere between Louisiana and Florida this weekend. TS warnings up for Central America […]
Our pattern has been pretty much unsettled since August and it doesn’t look as though that will change through the rest of October. That also suggests no return to warmth and equally no arrival of winter either. It’s a pattern which one can expect one day of wet and blustery followed by drier, brighter but […]
Great information on former tropical cyclone hits on Western Europe. Wikipedia The effects of tropical cyclones in Europe and their extra-tropical remnants include strong winds, heavy rainfall, and in rare instances, tornadoes. There is only one modern tropical cyclone officially regarded as directly impacting Europe—Hurricane Vince in 2005, which struck southwestern Spain—having made landfall in the European mainland whilst still fully tropical. Hurricane Debbie in 1961 […]
We’re opening October 2017 on an extreme note with a heavy early season snowstorm for Montana, Idaho, Wyoming and Colorado while summer is making a comeback further east. An impressive thermal gradient with 20-25 below to the west and 20-25 above to the east… The depth of trough and cold within sure is impressive for […]
Recent Comments