Category: Elsewhere in Weather News

Elsewhere in Weather News: November 30th, 2013

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Cyclone Lehar Hits India

This past week a weak cyclone hit India’s east coast as a weak cyclone depression. The cyclone – Cyclone Lehar was classified as a severe cyclone in the Bay of Bengal with winds over 100km/h but has since been downgraded. Unfavorable sea surface temperatures and shear for storm development did a good job on tearing up the storm apart before landfall. The storm made landfall as a tropical depression on Thursday, with winds of 60-70km/h at landfall. Evacuation precautions were taken by the India Meteorological Department because of the strength of the cyclone while it was over the Bay of Bengal but the only real threat that Lehar brought was flood threat. No significant damage was reported from the storm but some crops have been damaged and a few districts vulnerable to flooding in India’s Andhra Pradesh state have been affected by flooding.


Cyclone Lehar as it was struggling to organize over the Bay of Bengal. (Source: NDTV)
Cyclone Lehar as it was struggling to organize over the Bay of Bengal. (Source: NDTV)

Arctic air dominated over a good part of both Europe and the United States this week which brought minimal significant weather to the regions. Apart from significant snowfall associated with a trough of low pressure affecting the eastern seaboard of the United States earlier this week, active weather has been kept to a minimum. The next big weather event is likely to be a winter storm which will affect the northern states (MT, ND) and even southern Manitoba on Tuesday and Wednesday of next week.

Elsewhere in Weather News: November 29th, 2013

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Flooding Affects Italy

Severe flooding has been taking place in Sardinia, Italy this past week causing residents to rush for higher ground. Sardinia is one of Italy’s islands located in the Mediterranean Sea; about 1.7 million Italians reside here. An upper level low drew in moist air from the Mediterranean Sea and spun just off the coast of Sardinia, causing for some significant flooding on the island. Rainfall totals generally ranged between 35 and 50mm on the island, which is over half of their monthly total for November.


Severe flooding in the city of Uras, on the island of Sardinia. (Source: AP)
Severe flooding in the city of Uras, on the island of Sardinia. (Source: AP)

As this fell in a span of about 24 hours, sewers were unable to handle these large volumes of water in that short period of time. In some areas water levels reached about three meters, causing roads and bridges to be washed away. As of Friday night 18 fatalities had been reported. Several waterspouts and brief tornadoes had also been spawned by this system off of Italy’s coast and on the mainland.

Tornadoes Rip through US Midwest

In last week’s post of EIWN the risk for severe storms affecting the Midwest US had been briefly talked about. The event that occurred on Sunday was a fairly significant event; the moderate risk talked about in last week’s post had been upgraded to a high risk on Sunday – a risk only issued once or twice by the SPC when major severe weather events are imminent. This severe weather event followed up with all the hype ahead of it. In total, 106 tornado reports were received and 74 tornadoes were confirmed. Two of these were classified as EF-4 strength and 33 classified of EF-2 strength and higher, making November 17th a significant tornado outbreak in the Midwest. There were also numerous (400+) wind damage reports scattered from Iowa to New Jersey, as expected with the high shear environment on that day. One of the strongest tornadoes of the day – an EF-4 ripped through the town of Washington, Ill., where some houses were completely ripped apart by the twister. Death toll from the outbreak is at eight but could have been significantly higher if not for the good forecasting and swift warning issuance by NWS.


Map of all the warnings and watches issued on the 17th. Tornado watches/warnings in red and severe thunderstorm watches/warnings in blue. Polygons are the warnings. (Source: SPC)
Map of all the warnings and watches issued on the 17th. Tornado watches/warnings in red and severe thunderstorm watches/warnings in blue. Polygons are the warnings. Click on image to enlarge. (Source: SPC)

Elsewhere in Weather News: November 16th, 2013

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Typhoon Haiyan Final Update, Moderate Risk for Midwest US

It’s been over a week since super typhoon Haiyan made landfall in the Philippines and a second landfall over Vietnam. The impacts in the Philippines and Vietnam are just now starting to surface and the reports coming out of the countries are not good.

Vietnam had had quite a bit of time to prepare for the storm and 70,000 people were evacuated from low lying areas. These preventive measures surely saved lives in the flood-prone and landslide-prone areas of Vietnam, but unfortunately five people still lost their lives in the floods. Storm surge was not as big an issue as it was for the Philippines as Haiyan had significantly weakened by the time it made landfall in Vietnam.

For the Philippines the death toll continues to climb (3,600 people) as the cleanup continues. One neighbourhood of Tacloban City of about 10,000 people has been literally washed off the map according to the city’s mayor, with no houses left. An early estimate for the damage is 12-15 billion dollars.


Aerial picture of Guiuan, one of the hardest hit areas, to the east of Tacloban. (Source: National Post)
Aerial picture of Guiuan, one of the hardest hit areas, to the east of Tacloban. (Source: National Post)

Unfortunately, this past week another tropical disturbance made its way to Vietnam and brought anywhere from 250mm to 500mm in the central part this past week. To the already saturated grounds, this was enough to cause some more flash flooding. As of Friday night’s reports 3,500 houses had been lost and power was out for various cities in central Vietnam. In total, 17 people had lost their lives from this event.

In other weather news this week, a negatively tilted trough will be making its way across the US Midwest and has the chance to produce some severe weather on Sunday. SPC has outlined a 45% hatched area, moderate risk stretching up to Southern Ontario. Though CAPE is limited, shear is quite impressive, thus, severe winds will be the main threat with this event. If the sun does get a chance to heat up, brief spin-ups could become a threat with the low cloud bases. It is not all that common to see severe events of this magnitude stretching up to Southern Ontario in the middle of November.


45% hatched area for the US Midwest, the main threat will be wind damage. (Source: SPC)
45% hatched area for the US Midwest, the main threat will be wind damage. (Source: SPC)

Elsewhere in Weather News: November 9th, 2013

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Super Typhoon Haiyan Plows into Philippines

One of the strongest storms ever recorded on the planet formed this week in the Western Pacific and eventually made landfall over the Philippines on Thursday. Early estimates from satellite data suggest that this super typhoon was the fourth strongest ever recorded and strongest to make landfall, since record keeping began.


Impressive image of Haiyan Thursday afternoon as it neared peak intensity, about 5 hours before making landfall. Extremely cold cloud tops can be seen around the eye. (Source: Co. State University)
Impressive image of Haiyan Thursday afternoon as it neared peak intensity, about 5 hours before making landfall. Extremely cold cloud tops can be seen around the eye. (Source: Co. State University)

Haiyan brought just about every type of severe weather you could experience with a typhoon; extremely strong winds with central pressure below 900mb, very heavy rains causing flooding and a powerful storm surge. The category five typhoon brought intense sustained winds in the order of 300km/h, gusting to over 350km/h and a storm surge of over 15 feet. Reports of damage are still coming in as of Friday night as communication to the islands hardest hit has been knocked out. Tacloban, a city of about 215,000 residents looks to be the hardest hit where damage is significant, storm surge swamped first and second floors of buildings and high winds tore apart buildings. It’s difficult to put an estimate on damage and death toll at this point.


Picture of some of the damage to a bus terminal in Ormoc City (located south-west of Tacloban). (Source: R. Deleon)
Picture of some of the damage to a bus terminal in Ormoc City (located south-west of Tacloban). (Source: R. Deleon)

Haiyan continues its trek this weekend as it moves over the South China Sea towards Vietnam. It is expected to make landfall on Saturday overnight as a category two typhoon. Haiyan’s passage over the Philippines weakened its inner core as well as slightly cooler sea surface temperatures and higher shear values have all contributed to Haiyan’s slow weakening. Regardless, the typhoon still needs to be watched closely as it approaches Vietnam as flooding and landslides are expected to be a big problem.

Footage of super typhoon Haiyan making landfall in the Phillipines
An update on Haiyan as well as an update on the cleanup in the Philippines will be posted later this weekend.