Devastating Winter Storm Claims Dozens of Lives in Iran, Pakistan and Afghanistan

 

A brutal winter storm has dumped heavy rains and snows over portions of southeast Iran, southwest Pakistan and southeast Afghanistan. Heavy, wet snow accumulations up to 15 cm have overloaded roofs, leading to deadly collapses. Torrential rains have turned rivers into raging rapids, flooding vast regions and destroying hundreds of homes. At least 54 deaths have been attributed to the severe weather.

 

 

 

 

Temperatures in the Afghani capital of Kabul plunged down to minus 15 deg. Hundreds of drivers struggling to get to work were forced to abandon their cars on the snow-packed roads. Officials are scrambling to reopen highways closed by the heavy weather despite a continued threat for avalanches and landslides. The flooded rivers have compromised roadways and bridges, hampering efforts to move much-needed supplies to the devastated areas. Thousands have been evacuated from threatened communities with thousands more cutoff and isolated by the high waters.

Multifaceted Winter Storm To Target Central Plains & Eastern U.S.

A very dynamic and potent winter storm, with characteristics more typical of spring, is currently underway across the center of the nation. The storm, which is expected to last throughout the weekend, will feature many different types of weather, and affect millions of people. With snow in the Midwest, tornadoes in the south, and record warm temperatures in the east, it will truly be a storm that gives a taste a several seasons.

The most dangerous part of this storm system will be the severe weather potential. Severe thunderstorms containing damaging winds, large hail, and even tornadoes are possible throughout the next few days. The area at highest risk will stretch from the southern plains to the southeast. Tornadoes have already been confirmed in the states of Oklahoma and Missouri. Numerous homes have been destroyed in the town of Fair Play, Missouri. Tornado warnings, flash flooding, and hail were reported on Friday evening in the Dallas, Texas area, while many flights at the Dallas airport have been delayed or canceled. Tornado watches are currently in place across several states including Arkansas and Louisiana, as the threat of even nighttime tornadoes looms. As the storm moves east, so too will the threat of severe thunderstorms.

Another aspect of the storm will be flooding rains. The heavy rain will stretch from Texas to Ohio. On average 2-4 inches(50-102mm) of rain is expected, with isolated amounts greater than 5 inches(127mm). Flash and river flooding is very possible, especially in the Ohio River Valley, as soils are already saturated from recent rains.

On the cold side of the storm, snow and ice will be the main concern. Snow has already fallen in states such as Kansas and Nebraska, with amounts ranging from 3-8 inches. As the storm ramps up on Saturday, snow and ice coverage will expand to include states in the upper Midwest and northern Northeast. Amounts will vary from 3-5 inches(7-13cm) in most areas, while portions of Michigan may see up to 12 inches(30cm). Ice accumulations of .10” (0.25cm)or greater are also possible in these areas. Strong winds will accompany the snow and ice, which may lead to power outages.

While the central and northern parts of the country get battered by extreme winter weather, most of the eastern seaboard will bask in springlike warmth. With temperatures reaching well into the 60s and 70s (16-25 degrees) over the weekend, which is 25-30 degrees above average, many people will be asking if it’s January or May. The unusually warm temperatures will lead to many records being broken, if not shattered in the coming days.

Cyclone Blake Weakens, but Another Storm Looming for the Northern Coast

 

Cyclone Blake has moved onshore over northern WA and weakened to a remnant low. Tropical moisture will continue to stream into interior WA associated with the low. Flooding will continue to be a significant danger in these areas. Meanwhile, the active tropical pattern will continue with another cyclone likely to be named soon near the northern coast of NT. This potential cyclone will rake slowly across northern NT and northern WA through the weekend with heavy rains and high winds.

 

 

No significant damage has been reported over the sparsely populated portions of northern WA impacted by Blake in the past few days. A few stations have reported heavy rainfall around 150 mm. The remnants of Blake will continue to move slowly south over the next several days. Tropical moisture associated with the low will continue to flow into interior WA, leading to heavy rainfall approaching 300 mm in spots. Flash flooding is likely, and runoff could eventually lead to rises on streams and rivers. Damaging winds will become less likely as the low continues to weaken, but a few gusts to 60-70 kph could still occur.

 

 

Another tropical low is organizing over the warm tropical waters just north of the coast of Northern Territory. A new cyclone is likely to be named later Wednesday or early Thursday. This cyclone will move slowly west, paralleling the coast of NT before potentially approaching northern WA late Saturday into Sunday. Heavy rainfall of 150-300 mm is likely along with dangerous wind gusts of 80-130 kph. The city of Darwin will be at risk for flooding rainfall and high winds late Friday through early Sunday.

First Cyclone of the Season Could Target Northern WA This Weekend

 

An active storm pattern has been affecting portions of the Australia tropics in the last few weeks. A tropical low is expected to develop out of this activity in the next few days, rapidly intensifying to become the first cyclone threat of the season. Northern portions of Western Australia can expect high winds and flooding rainfall this weekend through much of next week.

 

 

The Australian tropical cyclone season actually began in November, but no systems have been named yet. However, conditions are ripe for cyclone development over the Timor Sea north of Western Australia. Water temperatures there are 29-30 deg C with low wind shear in the upper levels of the atmosphere. There is striking agreement among our weather models that a tropical low currently spinning well offshore will move south and intensify in the next few days. Heavy rain bands will sweep onshore as early as late Saturday, however strong winds will probably wait until later on Sunday. The tropical low is expected to become a cyclone by late Sunday or early Monday.

 

 

Model guidance suggests the cyclone will move slowly southwest along the coast of northern WA, then move south into the interior later next week. This slow movement will lend itself to very heavy rainfall amounts up to 300 mm, locally higher. Serious flooding can be expected. Damaging winds will occur over a somewhat smaller area, but brief gusts as high as 120 kph could lead to downed trees and power outages.