TODAY'S TOP WEATHER STORIES
On Weather & Climate Through the Eyes of Mark Vogan
Dust storm: This satellite image shows the clouds of sand forced in the atmosphere after a massive storm in the Sahara
(Image from Daily Mail)
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TODAY'S WEATHER ACROSS UK & EUROPE By Mark Vogan
Today marked the warmest day of the year across Scotland, the 70-degree high here at my house was well over a month earlier than last year!
There is a large circulation of air spinning clockwise over Western Europe right now. A cell of stable, sinking air controls a huge area stretching from the western Sahara all the way to Scotland, pushing summer-like heat into an area that should still be cool since it's only early April.
A very large high sits over the western flank of the continent that atmospheric road block has stopped the typical eastward movement of Atlantic air. The high's clockwise circulation has been responsible in transporting North African origin air all the way north up through firstly England and Wales and then with a northward shift in this high, now Scotland, making for highs as warm as 18-22C. The normal for this time of year should only be 11-13C.
The abnormal heat can only goe so far north
This hot air will only goes as far north as the high pressure cell circlulation around it goes. At the northern periphery of these southwest winds, they blow out of the west and this is where a rather vigorous jet stream blows. Once winds get all the way north to the point of turning around the top, they drive south, along with the jet stream. At the northern top of the ridge, they actually pick up cold, northerly air and this then gets transported south and southeast, producing unusually cold weather, even snowy weather for areas that should typically see milder or warmer weather at this stage of the season.
That's very much the case across all areas to the east of this high and are feeling the negative effects of the winds that whilst are blowing out of the south across the UK and the western mainland, are blowing out of the north and from the top of the ridge. A strong northwest jet and winds are making highs barely reach 4 or 5C in places such as Kiev, Ukraine and Ankara in Turkey.
My backyard high of 70 degrees today is 39 days earlier than last year
Slightly breezy conditions and some mid to high level cloudiness did restrict the heating at the surface in areas of Scotland this afternoon, keeping it slightly off anticipated highs of 21C or warmer. My high did top 21C or 70F thanks to breaks in cloudiness and less wind, The 70 degree high was an amazing 41 days EARLIER than last year's first 70 which didn't occur until May 21st officially. I didn't actually have figures from May 18-19th due to thermometer malfunction so it may have reached 70 on the 18 or 19th (likely did since the high on the 18th was 66 and on the 21st it was 75) but that would still make it 39 days later than last year still.
Considerable cooling by Monday and into the first half of the new workweek
Unfortunately all good things must come to an end. This high pumping the African heat up over us will get surpressed by later Sunday and into Monday as a front moves in from off the Atlantic and into western Scotland. Highs will fall from tomorrow's possible highs similar to today to perhaps only 12 to 14C with rain and clouds moving across the area and much of the country.
The good thing to remember is that we have one more warm, mostly sunny day tomorrow and we have all this warm sunny weather still ahead of us. It's still early in the year and May is only around the corner. Most May's can be good weather months for Britain and not only that, we tend to see our first low to mid-20s C (low to upper 70s) across inland Scotland and first upper 20s C (upper 70s to mid-80s) across England and Wales. This has been truely a treat as this magnitude of warmth and only 'early April' is VERY EARLY!
Best case, with how dry much of the UK is at the moment, May could in fact be a very sunny and warm month. Highs in Glasgow and Edinburgh have on many occations warmed into the 80s during dry spells in May when the April and late winter has been drier than normal. The current pattern and particularly the current warm, sunny weather does favour a warm month ahead in May!.
TODAY'S WEATHER ACROSS AMERICA By Mark Vogan
HEAT & STORMS DOMINATE CENTRAL/EASTERN STATES, COLD AND WET FOR WEST
High's soar to 104 at Laredo, TX, 92 at OK City and 94 over southwest KS today
Today's record heat to surge north into the Midwest Sunday. Chicago may push 90 degrees!
Turbulent times for the Plains and MS/TN/OH Valleys as the heat breaks at high cost
On Saturday, storms left their mark as tornadoes, large hail and damaging winds roared through areas of the Plains with a swath of tornadoes crossing Iowa. We also saw hefty thunderstorms, some severe which battered the Carolinas (see video's below). Hail as large as baseballs (up to 4.24 inches wide) were reported today...
NEW: Today's Iowa Tornadoes and Large Hail on YouTube
By Mark Vogan
VAGARIES OF THE WEATHER
INDIA & SUB-CONTINENTAL ASIA WEATHER
BY RAJESH KAPADIA
Come Saturday, and A2 arrives from across the West into India. And sure enough, it is more effective than A1. Advent of Summer will be halted for a few days in the Sub-Continent.
Sub-Continent Outlook for Sunday/Monday/Tuesday:
Vagaries 3 day Forecast Map for 10th, 11th, and 12th April. Click Here for enlargement. Click here for Vagaries Severe Weather Map
Into India, the Northern states of Kashmir and H.P. will get good amounts of precipitation, and snow in the higher reaches of both the states. Snow in Khilanmarg, Gulmarg and Sonmarg possible. Maybe some parts of the Jammu-Srinagar Highway could be affected.
In H.P, Snow possible in Lahaul and Spity valleys and in Keylong and Kalpa.
Shimla, which had a high of 21.6c today, will see the next 3 days cooler by almost 5c, and hills of Manali and Dalhousie will be wet with the day not exceeding 15c.
Srinagar, should also see the day temperature drop by 5/6c from Saturday's reading of 18.2c.
Sunday thru Tueday will be rainy and cold in the hilly states, and precipitation in Punjab, Haryana, Delhi and Rajasthan will cool down the weather in these areas. Few places in Punjab/Haryana/Delhi may possibly experience hailstorms. The plains of Northern India will see the days cooler by 3c as of Saturday readings. With cloudy days, New Delhi will see the day temperatures around 32/33c next 3 days.
Gujarat will be cloudy, but I doubt any meaningful precipitation. Days will be around 40c.
In Pakistan, Saturday, rain/thundershowers have commenced in Balochistan, Lahore, Multan and the Frontier regions.Parchinar recorded 10 mms of rain.Lahore and Peshawar had traces.
On Sunday, there will be precipitation from Northern Pakistan thru Punjab, Balochistan and into Upper Sindh. Larkana and other regions in Upper Sindh will receive precipitations. Cloudy conditions will prevail in rest of Sindh, including Karachi.The city's high will fall to around 32/33c.
Day temperatures in Central and N. Pakistan are expected to be 2/3c cooler than those recorded on Saturday. As rains will bring in cooler weather,
Islamabad will drop from Saturday's high of29c to around 24c next 3 days.
A2 precipitation will be slipping into Nepal from Sunday itself. Thundershowers in all the regions of the country on Monday/Tuesday could be expected. Kathmandu day temperatures should fall into the high 20s from Sunday thru Tuesday.
"The trough/wind discontinuity from east Uttar Pradesh to Marathwada alongwith the embedded cyclonic circulation over west Madhya Pradesh and neighbourhood has become less marked".-IMD Saturday Daily Bulletin.
Now, this has been the cause, (Vagaries has mentioned this earlier) of the Thundersqualls in this "line" . But its weakening, and the embedded low is fizzling out. Hence, I would decreasing rain activity in regions of Vidharbha and adjoinib M.P. from Sunday.
Some left over thundersqualls may shift east into Chattisgarh and Orissa on Sunday/Monday.
Mumbai Forecast:
Sunday/Monday/Tuesday: Cloudy morning on Sunday. Light clouding rest of the days. Days will be around 33c at both centres and nights slightly warmer at 24c. Some Change in weather from Wednesday.
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WHAT'S REACHING TODAY'S BLOGS?
Another Big Tornado Oubreak Coming!
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Greensburg Tornado Damage Photos
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new: what's on today's weatherbell blogs?
The clock is ticking
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South Central Drought Likely to Continue
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THE EXTREMES OF THE DAY
TODAY'S US EXTREMES
COURTESY OF ACCUWEATHER
HIGH: 104 degrees at Laredo, TX
LOW: 7 degrees at Stanley, ID
TODAY'S UK EXTREMES
COURTESY OF THE MET OFFICE
HIGH:
LOW:
TODAY'S EXTREMES HERE AT MY HOUSE
HIGH: 70 degrees
LOW: 39 degrees
Thanks for reading.
-Mark
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