TODAY'S TOP WEATHER STORIES
On Weather & Climate Through the Eyes of Mark Vogan
UK APRIL HEATWAVE: SCOTLAND IS WARMEST IN UK AT 74 DEGREES!
Here comes the Sun... Followed by the snow
SCOTSMAN
How sunshine changes Britain's mood
BBC
Germany: Freak sandstorm causes deadly motorway pile-up
BBC
TODAY'S WEATHER ACROSS UK & EUROPE By Mark Vogan
Today marks Scotland's warmest day with Fyvie Castle, Aberdeenshire topping 74 degrees
Looking northwest from my attic this afternoon, overlooking the Campsie Fells under bright, summer-like sunshine and 70 degree warmth
WHY WAS TODAY WARMER THAN YESTERDAY?
Today was the warmest day of the year for both my location here in Lennoxtown, East Dumbartonshire and for the country as a whole. Skies were clearer, allowing that solar energy to warm the surface more efficiently, winds were lighter and this was thanks to that high parked more over Scotland, rather than further south. When your not under the core of high pressure, winds blow stronger, skies don't always be as sunny and the actual pressure heights above aren't quite as strong. When pressures are lower and they tend to be away from the epicenter of the high pressure cell, there's less depth in the atmosphere in which the air can sink from top to bottom, thus restricting the warming process on the ground. We warmed nicely to 70 degrees on Saturday but today it was slightly warmer at 71 degrees, the air actually felt warmer thanks to lighter winds, skies were sunnier and I think there was a mugginess to the air.
According to the Met Office, Fyvie Castle in Aberdeenshire saw a late afternoon high of 23.3C which is 74 degrees F. That is certainly a respectable July and August high, do to see this type of heat across Scotland this early is nothing to sniff at. This folks is extremely warm for so early, even for locales further south that are naturally warmer than we are. These numbers that we saw across Scotland yesterday is warm even for the southeast of England. If it were the last days of April, these numbers wouldn't be quite as remarkable, but remember, there was cold north winds, many nights well below freezing and many places recieved snowfall.
Today's UK Temperatures
Aboyne 22.8°C
Tain Range 22.4°C
Altnaharra 21.9°C
Ballykelly 21.7°C
Edinburgh/Gogar.21.5°C
Aviemore 21.1°C
Farnborough 2.1°C
Bedford 2.1°C
Oxford/Lawford 2.0°C
Benson 1.4°C
Major Change in the Air Mass tomorrow!
For those sun worshippers, enjoy these final hours of warm, summer-like sunshine, it's going to be chilly and more than likely, rainy when stepping out to head for work in the morning.
We are going to see a rather impressive alteration in our weather pattern whilst you sleep tonight as the warm, humid sub-tropical air gets shoved out by a strong front that's moving in from the northwest. Once this front pushes across Scotland, bringing moderate, even heavy rains from west to east across the country, sunnier conditions should prevail by afternoon on the backside of the rainy front, but that sunshine won't be warm, in fact highs may struggle to reach 12C (52F) and it will likely be fairly windy, adding to that nippy shock to the system.
The southerly flow from Africa that brought our unusual April warmth also brought something else up with it! Sandstorms to portions of Europe
TODAY'S WEATHER ACROSS AMERICA By Mark Vogan
Another Hot Day, Another nasty Severe Weather Day!
Focus of tornadic activity shifts from Iowa yesterday to Wisconsin today
After it was Iowa that got hit hard on Saturday, today it was Wisconsin that bore the brunt of the heavy severe thunderstorms which produced tornadoes.
As you can see from the above map provided by the Storm Prediction Center, the front continues to march east ahead of the storm, leaving storm damaged Iowa behind after yesterday's wild weather there. Unfortunately, that line of just as severe and nasty storms refired this afternoon and through this evening as temperatures soared well into the 80s, even low 90s. This juicy, hot air provided high octane fuel to drive today's severe line of storms, impacting areas further east. Stretching from central and north Texas up through central Oklahoma, extreme northwest Arkansas, Missouri, portions of western and eastern Illinois and up into Wisconsin where they saw the worst of today's severe weather. Texas and Wisconsin saw today's tornadoes and the worst damaging winds and large hail. Northern Minnesota also saw some severe weather also.
Today becomes America's hottest with 106 degrees reached at Laredo, Texas
As you can see, like with the severe storms, there is eastward progression in the core of the heat. It too is shifting further east with each passing day. The front and it's embedded cells of strong to severe thunderstorms is acting as a thermostat, coolant and behind, a refreshing and cooler air mass lies ahead for these areas that have endured early season record heat and severe storms. Though one area will see 80s and 90s one day, then the nasty weather pushes through, leaving behind perhaps 50s, 60s and 70s, South Texas has been enduring multiple days in the 80s, 90s and even 100s with Laredo being king with 104 yesterday and 106 today!
Severe Weather departs Plains today and enters Mid-Atlantic and Northeast tomorrow
A much cooler, more refreshing overall air mass along with quieter skies will be in control across throughout the Great Plains from North Dakota to Texas and throughout the Midwest tomorrow with even Texas enjoying some relief from what may be too hot too early down there.
Notice from the below map provided by the storm prediction center the big Pacific storm will be spinning over Ontario tomorrow and ushering down cool north to northwesterly winds down over Minnesota, Wisconsin, Michigan and Illinois. The front will be aligned from the Mid-South northeastwards up to New York State where the severe weather should be focused on, from this line east to the Atlantic Seaboard, it will be a warm day with records likely to fall as the front will drive southerly winds ahead of it, allowing 80s for the first time in Philadelphia.
WEATHER TALK
By Mark Vogan
ON BOTH SIDES OF THE POND, DON'T LET EARLY SEASON WARMTH FOOL YOU....
Despite folks throughout the United Kingdom enjoying summer heat and sunshine early and tomorrow it will be folks from DC to New York that enjoy much above normal heat. These early blasts of heat (particularly for the UK since this warmth was so much above normal) can lead you into thinking the cool weather is gone for another year.
Wait! Just walk over to your calender and take a good look at it... go on.... Look at the current date.. April 10th. Remember it's only April 10th, not June 10th or July 10th. We here in the UK, like over the Northeastern USA can and will still see frost and my point in all this is, don't plant tender stuff out in the garden just yet, it's too early. There was plenty of frosts last April and most April's see frost right up until the end.
Even early May here last year saw substantial frosts. I wouldn't allow myself to be fooled by this early season warm, sunny weather, for one, even when days were shorts and t-shirt worthy like it was today and over recent days, those nights in between fell off sharply into the late evening and overnight. It's simple, it's just too early to have nights frost free and if I were you, allow another month, say up until May 10th until you can safely say hard frosts are gone. Even early June in some spots across both the UK and Northeastern US and Midwest can see frosts under those clear calm skies at night.
VAGARIES OF THE WEATHER
INDIA & SUB-CONTINENTAL ASIA WEATHER
BY RAJESH KAPADIA
Monsoon Watch - 1
These reports are my personal views, study and observations. Estimates and forecasts are also my own calculations and views, and may/may not tally with any other estimates. The Monsoon progress as analysed will be discussed and explained in Vagaries.
This annual series is a follow up and chasing of the South-West Monsoon. For now, this series will be chasing and closely following up the actual developments of the monsoon, and analyse its progress. We are not yet contemplating the quantum of rains or the monsoon strength as yet.
Very very briefly, let us first understand, that the "power house" of our SWM is actually based far away in the southern Hemisphere. The main "generating factory" is the Mascrene Highs, SE of the Madagascar coast. The proper formation of these high regions,(1028 mb at least) will boost and create proper SE winds to lash the East African Coast near the Equator, and then turn SW in the Northern Hemisphere.
And the formation of the "Tibetan High" is another factor. An anti-cyclone in the upper atmosphere over the Tibetan Plateau. During the formation stages, there will be thunderstorm activity in the SE parts of Tibet during the months of April and May.
To generate a powerfull SW wind, the cross equatorial flow must be strong and gusty. SW winds (ultimately upto 600 mb levels) then are capable of riding on the warmer Arabian Sea waters and bring cloud masses towards the West Coast of India. In the Bay, similar SW winds are generated, but from SE winds below the equator, just below Sri Lanka. Read more of this story and check out ALL of what our partner's blog have to offer!
WHAT'S REACHING TODAY'S BLOGS?
Big Tornado Day...
Henry Margusity, AccuWeather
2 Rounds Of Tornadoes This Week
Frank Strait, AccuWeather
new: what's on today's weatherbell blogs?
Oh Canada(ian GEM)
Joe Bastardi's Blog, WeatherBell.com
South Central Drought Likely to Continue
Joe D'Aleo's Blog, WeatherBell.com
THE EXTREMES OF THE DAY
TODAY'S US EXTREMES
COURTESY OF ACCUWEATHER
HIGH: 106 degrees at Laredo, TX
LOW: -6 degrees at Bellemont, AZ
TODAY'S UK EXTREMES
COURTESY OF MET OFFICE
HIGH: 74 degrees (23.3C) at Fyvie Castle (Aberdeenshire)
LOW: 30 degrees (-1.3C) at Santon Downham (Suffolk)
TODAY'S EXTREMES HERE AT MY HOUSE
HIGH: 71 degrees
LOW: 43 degrees
Thanks for reading.
-Mark
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