Wednesday, December 30, 2009

The Hurricane Atlantic Analysis image show the current surface features in the Atlantic Ocean.

Tuesday, December 29, 2009

The Hurricane Atlantic Forecast image shows the 24 hour forecast surface features (highs/lows/fronts/tropical cyclones) in the Atlantic Ocean.

Monday, December 28, 2009

The Hurricane Pacific Analysis image shows the current and forecast positions of any active tropical cyclones in the central and eastern Pacific Ocean.

Thursday, December 24, 2009

Tuesday, December 22, 2009

Cyclone Laurence making landfall on December 21 at 05:59 UTC (1:59 p.m. local Australia Time). Laurence was a Category 3 storm, and this image clearly shows an eye.

Tropical cyclone Laurence made landfall early on December 21, and residents along the northern coast of Western Australia are experiencing strong gusty winds, flooding, and very heavy rainfall. Laurence made landfall near Wallal as a Category Three hurricane on the Saffir-Simpson Scale, with winds of 126 mph/ 203.7 kph/110 knots, gusting to 178 mph/287 kph/155 knots.

Friday, December 18, 2009

Thursday, December 17, 2009

Cyclone Laurence over Northern West Australia on Dec. 17 at 02:00 UTC (9 p.m. ET Dec. 16) as it continued to hug the coast and track west.

Wednesday, December 16, 2009

Cyclone Mick's Center Exposed, Storm Dissipating

Cyclone Mick's center of circulation is exposed today, December 15. That's bad news for any cyclone as wind shear and dry air can work their way into the center of a storm and basically destroy it from the inside-out.

At 10 a.m. ET on December 15, Mick's sustained winds were around tropical depression force, 35 mph. It was located about 185 nautical miles east-southeast of Suva, Fiji, near 20.2 South and 177.4 West. Mick was moving east-southeast near 9 mph.

Strong vertical wind shear has helped expose Mick's low-level circulation center and the strong convection and thunderstorms are almost gone. As Mick continues to fade, its remnants will move southeastward. It is expected to dissipate by the end of the day.

Tuesday, December 15, 2009

As of today, Wednesday, 16-Dec-2009 05:51:41 PHT no tropical cyclone existing within the Philippine Area of Responsibility (PAR).

Monday, December 14, 2009

Tropical Storm Laurence Set for 2nd Australian Landfall

Tropical Storm Laurence on Dec. 14 at 1343 UTC (8:43 a.m. ET), when it was west-northwest of Darwin, Australia. Satellite imagery showed a disorganized storm.

Tropical Storm Laurence tracked through Darwin Australia this weekend before sliding back into the Timor Sea and now Laurence is forecast to make a second landfall in Australia. Laurence is forecast to make landfall north of Wyndham then parallel the coastline while moving over land for the next couple of days.

Laurence is forecast to make landfall in the Kimberley region, move southwest through the northern area of the Great Sandy Desert and into the Pilbara region.

Tropical cyclone 05B in the Bay of Bengal on December 11, 2009

Tropical cyclones such as 05B in 3-D. An intense thunderstorm near the center of 05B is shown by TRMM's PR to extend to heights above 13 km (~8 miles)

05B was producing heavy rainfall over areas of the southwestern Bay of Bengal and eastern Sri Lanka when the TRMM satellite passed over on December 14, 2009 at 0509 UTC

Tropical Depression 05B is dissipating on the east coast of Sri Lanka today and over the next couple of days, but not before bringing some moderate and heavy rain over the next couple of days to some areas in Sri Lanka and the southeast coast of India, from Chennai, southward.

Friday, December 11, 2009

Tropical Storm 05B on Dec. 10. 05B is the rounded area located to the southeast of the Indian state of Tamil Nadu. The area of purple in the middle of the storm indicates strong thunderstorms and high, cold thunderstorm cloud tops.

Cyclone Cleo

TRMM flew over Cleo on Dec. 10 at 20:23 UTC. There was one small area of heavy rainfall, in its northwestern side (in red) of about 2 inches per hour.

Rainfall in the once-known Cyclone Cleo has really diminished over the last 24 hours, and the Tropical Rainfall Measuring Mission or TRMM satellite has confirmed it. Cleo is fading and the Joint Typhoon Warning Center has acknowledged its demise, in its final warning on the storm today.

At 4 a.m. ET today, December 11, Cleo's maximum sustained winds were down to 40 mph, and waning fast. That make Cleo a weak tropical storm at the moment, but it is expected to dissipate in the next day or two, because of hostile atmospheric conditions (wind shear). Cleo's center was located about 480 miles southwest of Diego Garcia, near 13.9 degree South latitude and 67.7 East longitude.

Thursday, December 10, 2009

Cyclone Cleo Back Down to Tropical Storm Status

Cleo has run into wind shear and it has weakened it from a cyclone to a tropical storm. Cleo's maximum sustained winds are now down to 69 mph, and expected to continue falling. NASA's TRMM satellite noticed that an opening in the storm's circulation is one of the reasons Cleo has weakened quickly.

On December 10 at 09:00 UTC (4 a.m. ET) Tropical Storm Cleo) was located approximately 380 nm south-southwest of the island of Diego Garcia, near 13.5 degrees South latitude and 70.3 East longitude. Cleo was moving west-southwestward at 7 mph.

Tuesday, December 08, 2009

Atlantic Loop

Enhanced InfraRed - Click to enlarge

Friday, December 04, 2009

TRMM's analysis of rainfall within System 97W on Dec. 3 showed a very limited area of moderate rainfall. The yellow and green areas indicate rainfall between .78 to 1.57 inches per hour.

System 97W's open center is near 17.3 North latitude and 141.0 East longitude, about 310 nautical miles northwest of Guam. Satellite data shows that the deepest convection (strongest thunderstorm activity) is to the north and northwest of the center, pushed there from wind shear.

Thursday, December 03, 2009

System 97W is getting organized. Earlier today, December 3, System 97W's center was located about 110 nautical miles west of Guam, near 13.6 North latitude and 142.9 East longitude. Currently, its maximum sustained winds are around 28 mph, and it is moving away from Guam in a west-northwesterly direction near 10 mph.

On December 3 at 0300 UTC, the Joint Typhoon Warning Center issued its final advisory on Tropical Depression Nida. Nida had maximum sustained winds down to 28 mph (25 knots), and was still crawling along at 4 mph to the northwest. It was located about 450 miles southeast of Kadena, near 21.6 North latitude and 134.2 East longitude.

Wednesday, December 02, 2009

Nida Getting Knocked By Winds, and 97W Piquing Interest

Nida still has some stronger thunderstorms around its center (higher, stronger storms are depicted in purple). Meanwhile System 97W is also showing some strong thunderstorms in the southeastern side

Tropical Storm Nida's winds are around 57 mph (50 knots) today, December 2. Nida is moving west-northwest near 9 mph. At 10 a.m. ET, Nida was located about 505 nautical miles southeast of the island of Kadena, near 21.3 North and 134.8 East.

System 97W, however, looks interesting on NASA satellite imagery. In the latest AIRS imagery 97W can be seen to the east of Tropical Storm Nida. It is centered about 235 miles southeast of Guam, near 10.4 North and 147.1 East. The JTWC has upgraded the likelihood of tropical cyclone formation for this system to "fair."

Tuesday, December 01, 2009

After a westward movement, Nida is expected to now travel to the west of the islands of Iwo To and Chichi Jima over the next several days.

Typhoon Nida on November 30 at 4:15 UTC. The image showed the eye is now cloud-filled, one sign of a weakening storm, and since that image, Nida had weakened from a Category Two Typhoon to a Category One storm.

Monday, November 30, 2009

The tropical cyclones, and the Aqua and CloudSat satellites captured a top-down look at temperatures in Typhoon Nida's clouds, and an image of what they look like from the side.

On Monday, November 30, by 4 a.m. ET, Nida had lost her "Super Typhoon" status as a result of wind shear, and is now a typhoon. Nida's maximum sustained winds are near 115 mph (100 knots). The storm was over open ocean in the Western Pacific, about 330 miles south-southwest of the island of Iwo To (formerly Iwo Jima), near 19.6 North and 139.1 East. It was crawling to the west-northwest near 3 mph (2 knots), so the forecast track has become more difficult to predict.

Northern and Eastern Luzon will experience mostly cloudy skies with scattered light rains. The rest of the country will be partly cloudy to cloudy with isolated rainshowers or thunderstorms.

Moderate to strong winds blowing from the Northeast will prevail over Luzon and Visayas and coming from the North to Northwest over Eastern Mindanao and the coastal waters along these areas will be moderate to rough. Elsewhere, winds will be light to moderate blowing from the Northeast to Northwest with slight to moderate seas except duirng thunderstorms.

Predicted Mean Sea Level Wind Analysis for 8 p.m., 30 Novembe

Friday, November 27, 2009

As of today, Saturday, 28-Nov-2009 11:05:08 PHT no tropical cyclone existing within the Philippine Area . The Strong to gale force winds is expected to affect the seaboards of Northern and Eastern Luzon.

Typhoon Nida

Super Typhoon Nida's rainfall on November 26 and captured moderate rainfall around the storm's center between .78 to 1.57 inches per hour (yellow and green), with some heavy rainfall, as much as 2 inches of rain per hour (red), in a rain band southeast of the storm's center.

Nida is still holding on to Super Typhoon status in the Western Pacific Ocean, and over the weekend, is forecast to pass east of both Iwo To and Chichi Jima islands. Although the center of Nida will remain at sea, both islands will face heavy surf, gusty winds and heavy rainfall.

On Friday, November 27, at 0900 UTC (4 a.m. ET or 6 p.m. local Asia/Toyko time) Nida had maximum sustained winds near 149 mph (130 knots) with gusts to 184 mph (160 knots)! That makes Nida a Category 4 Typhoon. The range of sustained winds for a Category 4 typhoon (or hurricane) range from 131 to 155 mph (114-135 knots or 210-249 kilometers/hour).The National Hurricane Center says of a Category 4 Typhoon/hurricane: "Extremely dangerous winds causing devastating damage are expected."

Thursday, November 26, 2009

Mindanao will experience mostly cloudy skies with scattered rainshowers and thunderstorms. Visayas will have partly cloudy to at times cloudy skies with isolated rainshowers or thunderstorms while Luzon will be partly cloudy to cloudy with isolated light rains.

Moderate to strong winds blowing from the Northeast will prevail over Luzon with moderate to rough seas. Elsewhere, light to moderate Northerly to Northwesterly winds will prevail and the coastal waters along these areas will be slight to moderate.

Wednesday, November 25, 2009

thunderstorm cloud tops of Bongani in this infrared image of Nov. 25 at 5:25 a.m. ET, and showed the storm elongating over northern Madagascar.

Central and southern Madagascar are clearly visible, while the northern end of the island is obscured by Bongani's clouds.

stronger thunderstorms around its center (higher, stronger storms are depicted in purple) on November 23 at 5:35 a.m. ET.

Tuesday, November 24, 2009

Another tropical depression is bringing rains and gusty winds to the Philippines, but this time it is not in Luzon. NASA's Aqua satellite noticed early today, November 24, that Tropical Depression 27W (TD27W), called "Urduja" in the Philippines, is now bringing those conditions much farther south over Mindanao.

The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) posted storm signal number one for a large area of the Visayas. Those areas under the warning include: in Visayas: Bohol, Leyte Provinces, Camotes Island, Biliran, Eastern & Western Samar. In Mindanao the warning includes: Surigao Provinces, Agusan del Norte, Dinagat Island, Siargao Island and Camiguin.

On Tuesday, November 24, Tropical depression 27W was located approximately 35 nautical miles north of Mindanao located in the southern Philippines. It was near 10.0 North latitude and 125.8 East longitude. TD27W has maximum sustained winds near 23 mph. TD27W is moving westward near 8 mph.

Monday, November 23, 2009

At 4:00 p.m. today, Tropical Depression "URDUJA" was estimated based on satellite and surface data at 170 kms East of Surigao City (9.7°N, 127.1°E) with maximum winds of 55 kph near the center. It is forecast to move West Northwest slowly. Northeast Monsoon affecting Northern Luzon.

Friday, November 20, 2009

At 2:00 p.m. today, the Low Pressure Area (LPA) was estimated based on satellite and surface data at 200 kms East of Mindanao (8.1°N, 128.5°E). Northeast monsoon affecting Northern Luzon.

Thursday, November 19, 2009

NASA's Aqua satellite captured an image of Typhoon Mirinae on October 30 at 1 p.m. Asia/Manila Time approaching the Philippines (left), part of which are already under a part of Mirinae's clouds

If there's a tropical wave that is has any potential for development, and it's cited by one of the forecast centers, NASAHurricane's Twitter will explain what it is, and where it is. For example, if there's a tropical wave in the Atlantic Ocean, Twitter provides the opportunity to highlight it and give a status on it.NASAHurricane Twitter is excited about communicating 'in-real-time' to hurricane enthusiasts worldwide," said climatologist Bill Patzert at NASA's Jet Propulsion Laboratory, in Pasadena, Calif. "'Tweeting' the latest in NASA research and technology, developing hurricane events and impacts cranks up NASA's commitment to rapidly providing the most up-to-date and useful hurricane information to every level of society."

Wednesday, November 18, 2009

The Federal Emergency Management Agency's damage assessment teams were touring Hampton Roads, Virginia this week and documenting damages. The assessment will help determine if the state of Virginia is eligible for federal disaster assistance.

Residents in eastern Virginia and northeastern North Carolina were hit especially hard by the heavy rains from last week's coastal low pressure area, formerly known as hurricane Ida. Employees at NASA's Wallops Island facility in Wallops Island, Virginia had a first-hand experience with "Ida the coastal low."

After receiving almost a foot of water in various areas, clean up efforts will continue for some time to come. "The basement of my home did experience some flooding," Powell said. "Although frustrating, I know it can be cleaned up and repaired, however others weren't as lucky, so I won't complain."

Anja has continued to weaken over the last 24 hours, and NASA's QuikScat satellite has confirmed that the once mighty Category 4 Cyclone is now a tropical storm in the southern Indian Ocean. Two instruments on NASA's Aqua satellite have also helped forecasters determine Anja's location and change of shape.

NASA's QuikScat satellite uses microwave technology to peer through a tropical cyclone's clouds, and actually read the speed of the rotating surface winds. In an overpass from space at 7:58 p.m. ET last night, November 18 (Nov. 19 at 0058 UTC), QuikScat noticed Anja's maximum sustained winds have dropped to 63 mph, making it a tropical storm

Tuesday, November 17, 2009

zt 1500 UTC (10 a.m. ET) on November 17, Anja's maximum sustained winds were sustained at 75 knots (86 mph). Anja's center was located 715 miles east-northeast of La Reunion Island, near 18.3 South and 66.5 East. Anja is moving south-southwest at 12 mph. The storm seems to be spreading out as its weakening, as tropical storm force winds now extend out to 115 miles from the center (earlier today, they only extended 75 miles out from the center).

When the Tropical Rainfall Measuring Mission (TRMM) satellite passed over Anja on November 15 at 0904 UTC it had a well-defined eye and was increasing in strength from a category 2 tropical cyclone (on the Saffir-Simpson scale) to a powerful category 3 tropical cyclone later that day. TRMM is a joint mission between NASA and the Japanese space agency JAXA.

Cyclone Anja Now a Category 4 Storm in Southern Indian Ocean

Overnight Cyclone Anja continued on its power trip. Yesterday, November 16, Anja was a Category 3 Cyclone. Today, Anja has reached Category 4 status on the Saffir-Simpson scale as the storm's maximum sustained winds have increased to 115 knots (132 mph).

At 10 p.m. ET on November 16 (0300 UTC November 17), Anja was located about 715 miles east-northeast of La Reunion Island, near 16.4S and 67.3E. Reunion Island is located east of Madagascar in the Indian Ocean. The nearest island is Mauritius which is 120 miles to the northwest. Anja was moving toward the south-southwest near 13 mph.