Tropical Cyclone Activity Report – Pacific Ocean / Indian Ocean / Arabian Sea

  • Volcano - Popocatepetl, Mexico

    27 minutes ago WATCH

  • Volcano - Suwanosejima, Japan

    53 minutes ago WARNING

  • Wildfire - N of Kissidougou, Faranah - Guinea

    16 hours ago INFORMATION

  • Wildfire - W of Bor, Jungoli - South Sudan

    19 hours ago INFORMATION

  • Earthquake - 5.2 - Fiji region

    2 hours ago ADVISORY

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    3 hours ago WARNING

  • Volcano - Sangay, Ecuador

    3 hours ago WARNING

  • Earthquake - 5.8 - 35 km ENE of Villa Presidente Frei, Ñuñoa, Santiago, Chile, Chile

    9 hours ago WATCH

  • Wildfire - E of Norseman, Western Australia - Australia

    3 hours ago INFORMATION

  • Earthquake - 5.8 - Auckland Islands, New Zealand region

    3 hours ago WATCH

  • Volcano - Sabancaya, Peru

    4 hours ago ADVISORY

  • Tropical Cyclone - Thirteen

    5 hours ago INFORMATION

  • Volcano - Sheveluch, Russia

    5 hours ago ADVISORY

  • Earthquake - 6.9 - South Shetland Islands

    7 hours ago WATCH

  • Earthquake - 5.1 - 25 km S of Colombia, Colombia

    12 hours ago ADVISORY

  • Highsurf - Advisory (Hawaiian Islands)

    7 hours ago ADVISORY

  • Highwind - Advisory (Hawaiian Islands)

    8 hours ago ADVISORY

  • Tsunami (Pacific Ocean) - South Shetland Islands - 7.0

    8 hours ago INFORMATION

  • Tsunami (Caribbean Sea) - South Shetland Islands - 7.0

    9 hours ago INFORMATION

  • Earthquake - 5.0 - South Shetland Islands

    9 hours ago ADVISORY

  • Earthquake - 5.4 - South Shetland Islands

    9 hours ago ADVISORY

  • Tsunami (US ATL/Gulf Coast/CAN) - in the southwestern Atlantic Ocean - 7.3

    10 hours ago INFORMATION

  • Wildfire - Tirua Commune, Chile

    13 hours ago WARNING

  • Volcano - Reventador, Ecuador

    15 hours ago ADVISORY

  • Volcano - Sinabung, Indonesia

    16 hours ago WATCH

  • Earthquake - 5.5 - 37 km NNW of Finschhafen, Papua New Guinea

    16 hours ago WATCH

  • Earthquake - 5.5 - south of the Fiji Islands

    17 hours ago WATCH

  • Earthquake - 5.2 - 37 km NW of Finschhafen, Papua New Guinea

    18 hours ago ADVISORY

  • Earthquake - 5.6 - south of the Kermadec Islands

    19 hours ago WATCH

  • Volcano - Manam, Papua New Guinea

    21 hours ago WARNING

  • Volcano - Raung, Indonesia

    22 hours ago WARNING

  • Earthquake - 5.7 - 36 km NW of Finschhafen, Papua New Guinea

    1 day ago WATCH

  • Novel Coronavirus (COVID-19) - North America

    6 months ago WARNING

  • Novel Coronavirus (COVID-19) - Hawaii

    6 months ago WARNING

  • Volcano - Pacaya, Guatemala

    1 day ago WARNING

  • Floods - Northeastern Madagascar

    1 day ago WARNING

  • Extreme Cold - Pakistan

    1 day ago WARNING

  • Floods - Queensland, Australia

    1 day ago WARNING

  • Floods - England, United Kingdom

    1 day ago WARNING

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    1 day ago WARNING

  • Winter Storms - Eastern Sweden

    1 day ago WARNING

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    1 day ago WARNING

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    1 day ago WARNING

  • Storms - Mexico

    1 day ago WARNING

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    1 day ago WARNING

  • Winter Storms - Newfoundland and Labrador, Canada

    1 day ago WARNING

  • Storms - Paraguay

    1 day ago WARNING

  • Storms - Northwestern Brazil

    1 day ago WARNING

  • Storms - Southern Brazil

    1 day ago WARNING

  • Floods - Zamboanga City, Philippines

    1 day ago WARNING

  • Floods - Central Java Province, Indonesia

    1 day ago WARNING

  • Floods - Aceh Province, Indonesia

    1 day ago WARNING

  • Floods - Central Philippines

    1 day ago WARNING

  • Floods - Bujumbura Province, Burundi

    1 day ago WARNING

  • Winter Storms - Southern Austria

    1 day ago WARNING

  • Winter Storms - Northern Italy

    1 day ago WARNING

  • Avalanche - Slovenia

    1 day ago WARNING

  • Wildfire - Alto Biobio Commune, Chile

    1 day ago WARNING

  • Storms - Southern Peru

    1 day ago WARNING

  • Novel Coronavirus (COVID-19) - Asia Pacific

    6 months ago WARNING

  • Volcano - Santa Maria, Guatemala

    1 day ago WARNING

  • Flood - Fort Polk, LA Region, United States

    1 day ago WARNING

  • Winter Storm - Southwestern, United States

    1 day ago WARNING

  • Flood - Lufkin, TX Region, United States

    1 day ago WARNING

  • Volcano - Fuego, Guatemala

    2 days ago WARNING

  • Volcano - Semeru, Indonesia

    2 days ago WARNING

  • Extreme Cold - Northern Kazakhstan

    2 days ago WARNING

  • Floods - Papua Province, Indonesia

    2 days ago WARNING

  • Floods - Sao Paulo, Brazil

    2 days ago WARNING

  • Volcano - Aira, Japan

    3 days ago WARNING

  • Floods - Bolivia

    3 days ago WARNING

  • Drought - Kenya

    3 days ago WARNING

  • Drought - Southern Madagascar

    3 days ago WARNING

  • Extreme Cold - Central Asia

    3 days ago WARNING

  • Drought - Micronesia

    3 days ago WARNING

  • Drought - Hawaii, United States

    3 days ago WARNING

  • Drought - Midwestern United States

    3 days ago WARNING

  • Drought - Southern United States

    3 days ago WARNING

  • Drought - High Plains United States

    3 days ago WARNING

  • Drought - Southwestern United States

    3 days ago WARNING

  • Drought - Northwestern United States

    3 days ago WARNING

  • Volcano - Merapi, Indonesia

    3 days ago WARNING

  • Novel Coronavirus (COVID-19) - Europe

    6 months ago WARNING

  • Volcano - La Soufriere, St Vincent and the Grenadines

    2 weeks ago WARNING

  • Novel Coronavirus (COVID-19) - Latin America/Caribbean

    6 months ago WARNING

  • Novel Coronavirus (COVID-19) - Africa

    6 months ago WARNING

  • Novel Coronavirus (COVID-19) - Middle East

    6 months ago WARNING

  • Floods - Madeira, Portugal

    3 weeks ago WARNING

  • Chikungunya - Chad

    3 months ago WARNING

VIEW ALL HAZARDS
December 21, 2020
CURRENT TROPICAL CYCLONES
Tropical Cyclone 26W (Krovanh)is located 308 NM southeast of Ho Chi Minh City, Vietnam

 

Western North Pacific

Tropical Cyclone 26W (Krovanh)

https://www.metoc.navy.mil/jtwc/products/26W_211800sair.jpg

Here’s what the computer models are showing

Sustained 30 knot winds…with gusts to 40 knots (as of Warning Number 9)

According to the JTWC, satellite imagery depicts a fairly broad but disorganized low-level circulation with multiple vortices rotating cyclonically around the center, particularly in the south and southeast quadrants, with flaring convection near the assessed center.

The overall environment remains marginal, with moderate to high 20-25 knot wind shear being offset by strong, divergent, poleward outflow and warm sea surface temperatures. The system is tracking slowly west-southwestward along the southeast periphery of a low level subtropical ridge positioned to the northwest.

TD 26W is forecast to continue tracking west-southwest through 12 hours, then west through the remainder of the forecast. Wind shear has slackened slightly over the past few hours, now roughly 20 knots from the east, and is forecast to continue to slacken through  24 hours.

However, upper-level outflow is expected to weaken at the same time, serving to offset the decreased wind shear. the competing and offsetting factors will ultimately lead to a period of steady intensity.
Wind shear is forecast to increase again after 24 hours, and combined with convergence upper-level flow, will steadily weaken the system, leading to dissipation over water south
of Vietnam by 48 hours.

https://www.nrlmry.navy.mil/htdocs_dyn_apache/PUBLIC/tc_pages/thumbs/medium/tc21/SHEM/95S.INVEST/tc_ssmis/geoir/20201221.1205.f18.x.geoir.95SINVEST.25kts-1004mb-140S-635E.063pc.jpg

There’s a tropical disturbance being referred to as Remnants of TC 05P, which is located approximately 305 NM southwest of Tonga

Here’s what the computer models are showing

According to the JTWC, the system is currently classified as a subtropical storm, generally characterized as having both tropical and mid-latitude cyclone features. animated
multispectral satellite imagery supported by a microwave image, depicts a fully exposed low level circulation center with an asymmetric overall convective structure, and the majority of the deep convection offset to the south.

The remnants of 05P are currently in an environment unfavorable for tropical development with excellent poleward outflow being heavily offset by unfavorable 40 to 50 knot wind shear and cool sea surface temperatures.

Global models are in good agreement that the system will track south-southwestward while slowly weakening, eventually dissipating over the next several days.

Maximum sustained surface winds are estimated at 30-45 knots.

The potential for the development of a significant tropical cyclone within the next 24 hours remains low.

 

South Indian Ocean

 

https://www.nrlmry.navy.mil/htdocs_dyn_apache/PUBLIC/tc_pages/thumbs/medium/tc21/SHEM/95S.INVEST/tc_ssmis/geoir/20201220.1356.f17.x.geoir.95SINVEST.15kts-1010mb-113S-640E.052pc.jpg

There’s a tropical disturbance being referred to as Invest 95S, which is located approximately 520 NM northeast of Mauritius

Here’s what the computer models are showing

According to the JTWC, satellite imagery shows a broad area of turning with flaring convection in the southern semi-circle.

Invest 95S is in a marginally favorable environment for development, with warm sea surface temperatures, moderate outflow aloft…offset by moderate 20-25 knot wind shear.

Global models are in general agreement showing invest 95S will continue to consolidate as it tracks southwestward over the next several days.

Maximum sustained surface winds are estimated at 20-25 knots.

The potential for the development of a significant tropical cyclone within the next 24 hours remains low.

 

Here’s a link to the Joint Typhoon Warning Center (JTWC)

 

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