Halong rapidly intensified this weekend, becoming a super typhoon early Saturday night, local time.
Though it has since weakened, Halong is expected to remain a very dangerous typhoon as it approaches Japan later this week.
There is currently some wind shear affecting the storm which, if strong enough, typically weakens tropical systems. However, Halong is managing to overcome this shear enough to remain a powerful typhoon, even though some minor weakening is possible through Wednesday.
Satellite image of former Super Typhoon Halong Tuesday evening, local time, courtesy of NOAA.
Beyond Wednesday, shear will lessen which could allow Halong to strengthen as it moves through the Ryukyu Islands.
Halong has also enhanced monsoonal rains across the northwest Philippines where flooding will remain a problem through Wednesday; 50-100 mm (2-4 inches) of rain have fallen across Metro Manila since Saturday with local amounts over 300 mm (12 inches) northwest of the city.
While the current path of Halong puts areas from the central Ryukyu Islands to southern Japan at greatest risk of a direct landfall with heavy rain, damaging winds and coastal flooding, all residents of Japan, South Korea and even northeastern China should closely monitor the typhoon for potential dangers and any adjustments to the forecast track.
Tokyo is one location that is currently not expected to receive the worst of the storm, but the city and surrounding areas will likely see gusty winds and locally heavy rainfall as the cyclone tracks to the south and west late this week. Rain associated with Halong could reach the area as early as Friday with the worst impacts expected over the weekend.
Impacts in southern Japan are expected to worsen beginning from Thursday night into Friday. A landfall is expected either in Kyushu or western Shikoku Friday night into Saturday. These areas can expect torrential rainfall, damaging winds and a high risk for mudslides.
While flooding rainfall and damaging winds from Halong are expected across southern Japan later this week, some parts of southern Japan are already dealing with flooding after Tropical Storm Nakri drenched the region late last week.
During the past few days, Nakri has brought 250-500 mm (10-20 inches) of rain to some places in Kyushu and Shikoku, according to observation sites across these islands. Multiple locations received more than 10 inches within a single day. Kochi, one of the hardest hit areas, reported over 800 mm (31 inches) of rain since Saturday.
While the heaviest rain is over in these areas for now, additional showers and thunderstorms will remain in the forecast through Wednesday as Halong approaches from the south.
Because of this recent torrential rainfall and likelihood for additional heavy rains, impacts from Halong will likely be exacerbated. With the current forecast track, major flooding will occur in southern Japan along with mudslides, wind damage and coastal flooding due to storm surge.
The western Pacific was very active during July with five tropical systems. Of these, four strengthened to typhoons and three were super typhoons.
Meteorologist Adam Douty contributed to this story.
The risk of flooding from Odile will spill onto Texas and parts of the southern and central Plains late this week into the weekend.
Torrential rainfall slammed parts of Serbia over the weekend, resulting in two deaths as rushing waters sliced through area streets.
Igniting across Northern skies, ghostly rivers of light dance overhead each year, emitting vibrant shades of green, blue, pink, red and violet.
On Tuesday, Edouard became the first major hurricane in the Atlantic since Sandy. While Edouard remains at sea, rough surf will reach some Atlantic coast beaches.
Moisture from Tropical Rainstorm Odile will deliver torrential rainfall and cause life-threatening flooding over the interior Southwest through the balance of the week.
The chilliest air of the season so far will settle over much of the Northeast Thursday into Friday and will bring frost to a large area.