>27 March, 2011

Written by on March 27, 2011 in Rest of Europe with 0 Comments

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TODAY’S TOP WEATHER STORIES
On Weather & Climate Through the Eyes of Mark Vogan

Graphic Courtesy of CNN

Japan calls off tsunami advisory
CNN

Big quakes don’t trigger others far away, study finds

LA TIMES

TODAY’S WEATHER ACROSS UK & EUROPE
By Mark Vogan

TODAY’S WEATHER ACROSS AMERICA
From AccuWeather

Another Snowstorm for Plains, Midwest This Week
By Meghan Evans, Meteorologist

Texas, South in Path of Severe Storms This Week
By Meghan Evans, Meteorologist

More Rain to Soak Seattle to San Francisco
By Katie Storbeck, Meteorologist

Blah! How long is this Cold Weather going to Last?
By Heather Buchman, Meteorologist

WEATHER TALK
By Mark Vogan

Springtime is often turbulent with frequent up and down swings, the atmosphere is volatile and moody

At this stage in the calender, all places north of the equator are within recovery mode from winter. However, that recovery can be slow, in some cases very slow. It is often if not always a bumpy ride too as cold air doesn’t want to leave without a fight. The expansion of the sub-tropical high pressure zone and it’s advancement northward towards the Mid-Latitude region is bumping into that residual colder air, there’s still plenty of it and with these two conflicting air masses meeting in various parts of the world it means storm systems moving west to east have extra juice, creating stonger storms.

Depending upon the type of winter in given areas, spring often is quicker or slower to arrive, those areas which had a harsh mid to later part of winter thanks to the La Nina induced pattern often sees a cold, turbulent spring and a late arrival of warmth, even when these areas get a taste of spring warmth, it’s often quickly followed by a return of winter. For us here in the British Isles, our worst period of winter was the first half of the season and the second, though had plenty of chilly, snowy weather wasn’t as bad with the mean trough setting up over Scandinavia and eastern Europe. This past week we have seen mild high pressure sit over us as well as western and even central Europe bringing sunny, warm late March sunshine with temperatures comfortably above normal. As for Scandinavia, the Baltics, western and central Russia, here, they will likely remain cold and at times snowy through April and it may be slow to really warm even well into May. This is what I would call a winter hangover produced by the global weather altinator called La Nina.

Here in the UK, it will likely be very changable pattern over the next 4-6 week period with cool spells, mild spells and even the odd Atlantic storm. Southwest Europe will likely warm up nicely along with North Africa which may be looking at a rather hot April and May period. That warmth reflects that of northern Mexico and the southern tier of the USA which also should see a warmer than normal April and May that’s reflective of La Nina but like in northern and eastern Europe, the northern and northeastern USA should remain cooler than normal and this will mean bigger severe weather outbreaks over the central and southern Plains.

Places such as the USA, portions of central Europe as well as central and eastern Asia will possibly see wild swings from abnormally warm, summerlike conditions to a sudden return to winter. Spring often brings with it, strong surges of tropical heat and humidity to points well to the north and further west or east, it’s the opposite, this is because the jet stream at times becomes very amplified or meridional. Because of the overall upper-level flow is west to east, areas that enjoy very warm weather could find themselves facing powerful cold fronts which bring nasty severe thunderstorms and then a return to harsh wintry weather. That has occured across the Plains and Eastern USA over recent weeks and can and does happen in the other continents of the hemisphere. It’s all part and parcel of springtime.

VAGARIES OF THE WEATHER
INDIA & SUB-CONTINENTAL ASIA WEATHER
BY RAJESH KAPADIA

Vagaries’ weekend forecast for the sub-continent, was almost “adhered to”, if i may use the terminoligy, in terms of temperatures and weather systems.

Sub-Continent Weather Forecast for Mon/Tue/Wed/Thursday; 28th,29th,30th. 31st.March.

India:

Vagaries’ analysis is towards sporadic rains for Mon/Tue/Wed for the states of Kashmir, H.P. and hills region of Utteranchal. Resulting from a fading M3. This system slides into Nepal on Monday.

93B is still at 1008 mb at 8.6N and 96.9E. Sustained winds are at 15 knts.

A variety of forecast estimates and opinions are given about B1. Vagaries estimates B1 to sustain in strength up to a minimum of 1004 mb (same as earlier estimate), and now that M3 is fading, move a bit Northwards from its current position. Expecting the system to fizzle out somewhere in the North-Eastern Bay region by 2nd. April.

Rains have been fairly heavy in the Bay Isalands last 2 days . Rain amounts varied from 40 mms to 100 mms cumulative. The heavy rains will continue in Andaman and Nicobar islands, as the low will deepen and hover around the region, for almost 4 days till the 2nd.

Line of wind discontinuity, now runs from Gangetic West Bengal to south Tamil Nadu across Orissa, south Chattisgarh, Telangana and Rayalaseema. However, now at 0.9 km asl, its shifted as an UAS, and is a trough line. Likely to dis-integrate soon, the eastern end of the trough will deepen a bit, and result in precipitating heavy rains in the NE states. Bangladesh, will receive heavy rains on Tuesday, as the trough deepens in the NE region.

A trough running from Iran coast eastwards along Sindh coast into Gujarat will create some gusty and strong west winds along the regions. Gujarat will be very windy with strong westerlies at 30 kmph.

Temperatures will be contained in the plains of Northern India, with no heat waves. The odd city in Rajasthan could just touch 40c. Delhi remaining dry and around 36/37c.

Vidharbha region will touch a high of 42c next 3/4 days. For Nagpur, 42c is just round the corner.

Pakistan:

Northern regions of Pakistan will get some sporadic rains in the next 2 days.

For Islamabad, Monday will be cool and cloudy with a shower, keeping the day cool at 25/26c.Days will not exceed 31c on Tues/Wed. Rest of Pakistan will be mostly dry.

Windy westerlies in Karachi next 3 days will keep the high restricted at 32/33c.

Highest in Sindh could be jumping to 43c before Wednesday.

Nepal:

Nepal will get precipitation from M3 till Tuesday. Days should be cool, as Kathmandu was raining today and was at a day’s maximum of 24.7c. Kathmandu should get some showers till Monday, but I doubt if the capital will even reach the month’s normal rainfall of 30 mms. Total till now the month’s rain adds up to 9 mms.

Please make a point of clicking here to see Rajesh’s blog who is in partnership with Weather & Climate Through the Eyes of MV. It’s very informative, scoping not only the Radar across India, but the Sub-Continent as well as abroad. The best of it is, it’s all from from a locals perspective!

WHAT’S REACHING TODAY’S BLOGS?

Forecast: Winter won’t let go
The Capitol Weather Gang

The Battle Continues, More Snow And Storms
Frank Strait, AccuWeather

THE EXTREMES OF THE DAY

TODAY’S US EXTREMES
COURTESY OF ACCUWEATHER

HIGH: 99 degrees at Laredo, TX
LOW: -11 degrees at Grand Marais, MN

TODAY’S EXTREMES HERE AT MY HOUSE

HIGH: 51 degrees
LOW: 30 degrees

Thanks for reading.
-Mark

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