Weather Tracker

Temperatures soar in California and Arizona, while deluge continues across Western and Northern CapeHeat is expected to intensify across western parts of the US and Mexico this week as a ridge of high pressure pushes temperatures well above the seasonal norm. Daytime highs are forecast to reach 10-15C above average in some areas.The US National Weather Service has issued heat advisories for parts of California and Arizona, with extreme heat warnings in force on Monday and Tuesday in places such as Palm Springs, where temperatures could reach 40-43C (104-110F). More broadly, temperatures are expected to climb into the high 30s celsius before the heat shifts eastwards towards the midwest later this week. Continue reading...

High winds have hit the South Aegean and heavy rain has fallen in Turkey, but Central Europe has felt summer heatGreece and Turkey have found themselves in the grip of a late-season cold spell this weekend. Conditions will persist over the next few days as an area of low pressure situated over Turkey is pulling in colder, moisture-laden air from the north-east via the Black Sea; this meteorological set up has suppressed temperatures well below where they should be for the time of year. Away from the Mediterranean coast, much of Turkey struggled to reach double figures, which is around 10C below the average, while Greece saw a similar chill. In Athens, temperatures only crept into the low teens Celsius, a far cry from the mid-20s typically expected in early May.But they haven’t just faced cold. Greece had gale force winds whipping through the islands in the South Aegean – gusting around 60mph on Sunday evening, and the unsettled weather has brought a surge of heavy rain to Turkey. The Central Anatolia region of Turkey would normally see about 50mm of rainfall across the entire month of May, but on Sunday had already seen many areas pick up half that total in just 24 hours. With colder air in place, higher elevations have even seen a return to winter, with up to 30cm of fresh snow forecast across the Anti-Taurus Mountains on Monday and Tuesday. In Ankara, temperatures on Monday 4th are expected to peak at just 7C – nearly 14C below average – before slowly edging back towards normal by the weekend. Continue reading...

Strongest tornado hits Mineral Wells, Texas, where disaster was declared. Elsewhere, extreme rain inundates ChinaSpring is the season for severe thunderstorms across the central US, and the start of this week was a particularly active period for the region. A favourable weather pattern fuelled intense thunderstorms on Monday through Wednesday, bringing strong winds, very large hail and strong tornadoes.Eight tornadoes were reported on Monday, including an EF2 tornado that ripped through the town of Sycamore, Kansas. On Tuesday, a more widespread event tore across the mid-west, most notably as a severe hailstorm moved through Springfield, Missouri. Continue reading...

Heatwaves reach 45C across India as unseasonably cold weather affects parts of central CanadaWidespread heavy rain is sweeping over southern China. By Wednesday, rainfall totals are expected to exceed 100mm across many parts of Guangxi, Guangdong, Fujian, Zhejiang, Jiangxi and Hunan provinces, and in some areas as much as 150-200mm.As a result, the Office of the State Flood Control and Drought Relief Headquarters and the Ministry of Emergency Management have been holding meetings with meteorological and hydrological departments to emphasise the importance of reinforced patrols and emergency responses to mitigate against the probable flooding that the intense rainfall is expected to bring. In particular, reservoirs with known safety concerns must remain empty during the period, as well as through the coming rainy season. Continue reading...

Seville could see 34C this week and parts of Brazil could hit high 30s, while storms forecast in southern AfricaOver the course of this week, temperatures in Spain are expected to soar well above the seasonal average. Daytime temperatures could reach about 30C in Madrid on Tuesday, 10C above the norm, while Seville may see 34C, about 9C above its late April average. An area of low pressure situated out in the Atlantic will allow for a south-westerly flow, introducing warm air from north Africa. In addition to this heat, a notable dust plume is expected to travel northwards from the Sahara, covering the skies above Iberia and south-western France, which may lead to some particularly orange or red skies at sunrise and sunset.In Brazil, high temperatures are forecast for the states of São Paulo, Paraná, Mato Grosso do Sul and Santa Catarina over the next few days, eventually spreading into Minas Gerais. Here, daytime maximum temperatures are expected to reach the high 30s Celsius later in the week, about 5-10C above the seasonal average. Continue reading...

Accumulations of up to 3cm deep reported as severe thunderstorms also bring heavy downpours to central Italy This week has seen severe thunderstorms affect the Mediterranean. On Monday, a surface low-pressure system in the Mediterranean in conjunction with an upper air cut-off low, lead to thunderstorms over north Africa. Their intensity was aided by the hot precursor conditions.Algeria and Tunisia were notably affected by the thunderstorms, with some hail accumulation layers as a result. When so much hail forms, it starts to lay down sheets of hail, covering the ground like snow. Hail accumulations of up to 3cm were reported in Oum Ladjoul and Hammam Sokhna in Algeria, and there were hailstones of up to 3cm in diameter fell in Makthar, Tunisia. Thunderstorms continued in the region through the following day, with further hail accumulations, notably in Ouled Bousmir, Tunisia, where there was a layer of about deep. Continue reading...

Rapidly strengthening storm brings destructive winds, flooding risk and dangerous seas to western PacificThe Mariana Islands archipelago in the western Pacific, home to the US territories of Guam and the Northern Mariana Islands, is bracing for extreme weather early this week as Super Typhoon Sinlaku approaches.The system originated as a cluster of thunderstorms over the seas of Micronesia before strengthening into a tropical storm and then a typhoon on Friday and Saturday. Continue reading...

Powerful storm brings destruction, while temperatures soar in Vietnam and torrential rain lashes South KoreaSevere Tropical Cyclone Maila, currently in the Solomon Sea, is expected to continue moving south-westwards over the coming days. According to the Australian Bureau of Meteorology, Maila had peak sustained winds of 115mph (185k/ph), with gusts up to 160mph on Thursday, making it the strongest cyclone recorded this far north in the Solomon Sea.The storm has caused widespread damage across the Solomon Islands, particularly in Western, Choiseul and Isabel provinces, where schools, clinics and homes have been damaged. The government is prioritising humanitarian assistance, after about 120 people were displaced and almost 73,000 people affected overall. Continue reading...

Concerns about coming wildfire risk, and temperatures also remain high on other side of Pacific where rare tropical cyclone has formedAfter a historically warm winter across nine states in the US, the first month of meteorological spring again brought exceptionally high temperatures, with numerous states recording new all-time high temperatures in March. The remarkable intensity and longevity of the warmth have left much of the mountain snowpack, a crucial source of water for millions in the American west, at critically low levels.Though precipitation totals tend to increase in spring, the low snowpack has raised concerns about a potentially severe wildfire season if conditions do not improve soon. And with further spells of abnormally warm, dry weather expected this week, the outlook is becoming increasingly worrying heading into the late spring and summer months. Continue reading...

Abnormally strong jet stream triggers deluge in Middle East, while north Africa braces for 60-80mph gustsAn unusual weather pattern unleashed severe thunderstorms across parts of the Middle East last week, battering countries including the United Arab Emirates and Saudi Arabia. The Arabian peninsula – typically dominated by arid desert climates – received up to 150mm of rain in just a few days.The deluge was caused by an abnormally strong jet stream, which helped form a deep area of low pressure to develop north of Saudi Arabia. This, in turn, drew moist tropical air from the Indian Ocean and triggered intense storms. Continue reading...

Low pressure brings unsettled conditions to southern Europe, and rain and snow to western and central areasSouthern Europe has been under a variety of severe weather warnings this week owing to widely unsettled conditions driven by an area of low pressure in the region. This area of low pressure – previously a part of the system that brought colder conditions to swathes of the UK earlier this week – moved southwards across Europe through the middle of the week.In doing so, it brought a cold front across western and central parts of Europe, with spells of rain and hill snow across the Alps on Wednesday, followed by snow showers on a brisk north-westerly wind. By Friday morning, accumulations of 20-40cm were expected above 600 metres, and with 60-100cm above 1,000 metres in the Swiss Alps. Continue reading...

Karachi particularly badly affected with 18 people killed, more than 50mm of rain and winds gusting up to 60mphUnseasonally wet weather struck southern Pakistan and north-west India on Wednesday, as heavy rain rolled in from the west, accompanied by thunderstorms, hail, and strong winds.Karachi, Pakistan’s largest city, was particularly badly affected, locally recording more than 50mm of rain with winds gusting up to 60mph. Walls, buildings, and a pedestrian bridge collapsed, with flooding and power outages across the city. At least 18 people were killed and several more injured, many by structural collapses, with other deaths attributed to a fallen tree and a lightning strike. Continue reading...

Parts of US face another winter storm with severe conditions also pushing into Ontario, Quebec, and NewfoundlandNearly two months since a major storm brought widespread heavy snow and freezing rain to eastern parts of the US, a new winter storm is sweeping across north-eastern US states and south-eastern Canada.An area of low pressure, which first developed in north-western parts of the US late last week, intensified rapidly as it pushed north-east through central parts of the US. Continue reading...