Storms and Floods

Tropical Storms – Roundup of Tropical Storms:

650x366 10291302 hd29

Tropical cyclone (tc) 04a (Nilofar), located approximately 294 nm east of Masirah Island, and is tracking northeastward at 05 knots.

Tropical Cyclone Nilofar will be far from the dangerous cyclone it strengthened into earlier this week when it impacts India and Pakistan, but localized downpours are still a threat, however.

Nilofar reached its peak intensity on Tuesday with maximum sustained winds of nearly 215 kph (135 mph), making Nilofar a very severe cyclonic storm and the equivalent of a minimal Category 4 hurricane in the eastern Pacific or Atlantic basins.

Nilofar is now losing its battle with disruptive wind shear (strong winds above the surface) which as caused the cyclone to weaken to the equivalent of a tropical storm. Nilofar will continue to weaken through Friday.


Norway – Heavy rainfall in western Norway has caused severe damage to infrastructure and constructions. Many are left homeless. Houses, sheds washed away by Opoelva in Odda, Hordaland County. Hundreds evacuated from their homes in the region. Floods and landslides close over 20 roads. Worst flooding since 1892.


Human infection with avian influenza A(H7N9) virus – China

On 19 October 2014, the National Health and Family Planning Commission of China notified WHO of 2 additional laboratory-confirmed cases of human infection with avian influenza A(H7N9) virus, including 1 death.

WHO continues to closely monitor the H7N9 situation and conduct risk assessment. So far, the overall risk associated with the H7N9 virus has not changed.


Roundup of Global Volcanic Activity

Stromboli (Eolian Islands, Italy): The effusive eruption that had started on 7 August seems to be ending: the lava flow emitted from the 650 m vent at the eastern base of the summit crater complex has decreased a lot two days ago and seems to have almost (or completely) stopped by today. INGV Catania reports strong degassing from the summit vents.

Bardarbunga (Iceland): Huge lava effusion rates continue to characterize the ongoing eruption at the Holuhraun fissure. There are no signs of the eruption ending soon. Earthquakes continue to be frequent under the central volcano’s caldera.

Shiveluch (Kamchatka): An ash plume was reported last evening rising to approx. 30,000 ft (9 km) altitude and extending east (Tokyo VAAC). Most likely, a collapse of a part of the growing lava dome (or an explosion) occurred. In the first case, the ash plume is likely associated with a pyroclastic flow.

Kilauea (Hawai’i): This afternoon, the lava flow continued to move through private property and gets ever closer to the Pahoa village road. The leading edge of the flow was advancing about 10 m (11 yd) per hour this afternoon. It flow moved downslope about 125 m (136 yd) over the past 24 hours. The flow width was less than about 50 meters (55 yards) at the leading edge. As of 4:15 pm (29 Oct local time), the flow was about 185 m (202 yd) in a straight line distance from Pāhoa Village Road and about 775 meters (850 yd) in a straight-line distance from Highway 130. The lava lobe south of the main flow and upslope of Apa`a Street was not active today, but there were a couple of small breakouts on the north side of the flow that have advanced 70 to 110 m (75 to 120 yd) in the past day. (HVO’s latest update)

Popocatépetl (Central Mexico): Overall, the volcano’s activity has remained unchanged. Occasional explosions produce ash plumes that rise 1-2 km above the volcano. Yesterday, the volcano was a bit more active and had 5 such eruptions. Overnight incandescence is observed comming from the central and east sector of the crater.

Santiaguito (Guatemala): The viscous lava flow on the eastern side continues to advance slowly. No significant explosive activity from the lava dome has been reported recently.

Fuego (Guatemala): The volcano’s activity has been stable over the past weeks. Mild to moderate strombolian explosions continue. Yesterday, the observatory reported 11 weak explosions (ash plumes rising up to 500 m) and 13 moderate ones (ash plumes up to 800 m). The plumes drifted SE and W for approx. 10 km before dissipating. Light ash fall occurred in downwind areas. The explosions at the summit produce incandescent avalanches on the upper slopes of the volcano.