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Tropical Cyclone Boloetse
| Title |
Tropical Cyclone Boloetse |
| Description |
Tropical Cyclone Boloetse was winding down on February 5, 2006, when the Moderate Resolution Imaging Spectroradiometer (MODIS [ http://modis.gsfc.nasa.gov ]) on the Aqua [ http://aqua.nasa.gov/ ] satellite captured this image at 10:45 UTC (1:45 p.m. local time). At this time, Boloetse was heading into the southern Indian Ocean after brushing against the southern end of Madagascar. The cyclone had sustained winds of around 120 kilometers per hour (75 miles per hour), classifying it as a Category 1 storm on the Saffir-Simpson scale. This was less intense than the previous day [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=13350 ], and forecasters were predicting the storm would continue to diminish in strength as it traveled southeast away from the African coast. Tropical Cyclone Boloetse initially formed in the western Indian Ocean and traveled west, crossing the island of Madagascar as a tropical storm in late January 2006, with moderately strong rains. The storm intensity declined to tropical-depression strength as it crossed the mountainous ridgeline that runs along the eastern shore of Madagascar. However, once the storm system reached the warm waters of the Mozambique Channel, the tropical depression re-organized and built up enough strength to become a tropical cyclone. Once there, the storm reversed direction and headed southeast, taking it across Madagascar once again. It struck a glancing blow over the island's southern tip on February 4, 2006. NASA image created by Jesse Allen, Earth Observatory, using data obtained courtesy of the MODIS Rapid Response team. |
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Tropical Cyclone Bondo
| Title |
Tropical Cyclone Bondo |
| Description |
Tropical Cyclone Bondo spent the days before Christmas in the Seychelles north of Madagascar, whipping those islands with powerful Category 2-strength [ http://www.nhc.noaa.gov/aboutsshs.shtml ] winds. The storm then turned south and grazed along the northwestern coast Madagascar on December 24, while building strength to Category 4, according to the Global Disaster Alert and Coordination System. [ http://www.gdacs.org/ ] The cyclone then came ashore at the north end of Madagascar on December 25, where more than 4.5 million people lived within 200 kilometers of the storm. This photo-like image was acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov/ ] on the Terra [ http://terra.nasa.gov/ ] satellite on December 25, 2006, at 9:55 a.m. local time (6:55 UTC), while the storm's center was coming ashore. Bondo had well-defined spiral arms of rain clouds and thunderstorms at the time of this image, and a distinct, cloud-filled (or "closed") eye at its center. It was not as strong a storm as it had been the previous day, however, as coming ashore robbed it of the source of its power—the warm waters of the Mozambique Channel between Madagascar and mainland Africa. According to the University of Hawaii's Tropical Storm Information Center, [ http://www.solar.ifa.hawaii.edu/Tropical/ ] peak winds had fallen to around 110 kilometers per hour (70 miles per hour), still quite potentially destructive. NASA image by Jesse Allen, Earth Observatory, using data provided courtesy of the MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center. |
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Tropical Cyclone Favio
| Title |
Tropical Cyclone Favio |
| Description |
Tropical Cyclone Favio came ashore on the coast of Mozambique in the morning of February 22, 2007. At the time it crossed the shoreline, Favio had lost some strength from its peak the previous day, but still had extremely powerful winds that measured around 203 kilometers per hour (126 miles per hour), according to the Tropical Storm Risk.com [ http://www.tropicalstormrisk.com/ ] and Reuters AlertNet. [ http://www.alertnet.org/ ] The cyclone, the strongest recorded storm to hit Mozambique, was heading directly towards the Zambezi River valley region. This region suffered heavy rains associated with the onset of the monsoon, and severe flooding along the Zambezi River [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14115 ] in mid-February killed dozens of people and forced more than a hundred thousand people to evacuate, according to reports [ http://www.reliefweb.int/rw/RWB.NSF/db900SID/LSGZ-6YMDSC?OpenDocument ] from the International Federation of Red Cross and Red Crescent Societies posted online by ReliefWeb. [ http://www.reliefweb.int/rw/dbc.nsf/doc100?OpenForm ] This photo-like image was acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov/ ] on the Terra [ http://terra.nasa.gov/ ] satellite on February 22, 2007, at 10:20 a.m. local time (8:20 UTC), just as the storm was coming ashore. The eye of the storm was just off the coast as MODIS observed the cyclone. Favio had the recognizable shape of a mature, southern hemisphere tropical cyclone, with spiral arms showing its clockwise rotation, and a well-defined eye with strong eyewall (inner ring) clouds. The high-resolution image provided above is at MODIS' full spatial resolution (level of detail) of 250 meters per pixel. The MODIS Rapid Response System provides this image at additional resolutions. [ http://rapidfire.sci.gsfc.nasa.gov/gallery/?2007053-0222/Favio.A2007053.0820 ] You can also download a 250-meter-resolution Cyclone Favio KMZ file [ http://earthobservatory.nasa.gov/NaturalHazards/Archive/Feb2007/ Favio.A2007053.0820.250m.kmz ] for use with Google Earth. [ http://earth.google.com/download-earth.html ] NASA image by Jeff Schmaltz, MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center. |
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Tropical Cyclone Favio
| Title |
Tropical Cyclone Favio |
| Description |
Tropical Cyclone Favio formed in the western Indian Ocean about 1,200 kilometers from Madagascar on February 14, 2007. It gradually moved southwest, passing well offshore of Reunion and Mauritius Islands. By February 20, it was just off the southern shore of Madagascar as a well-formed, mature storm. While the storm system had largely skirted around populated areas to that point, forecasters were concerned about its behavior as it entered the warmer waters of the Mozambique Channel. The storm was forecast to reach Category Four [ http://www.nhc.noaa.gov/aboutsshs.shtml ] strength before coming ashore and tracking inland through Zimbabwe and Zambia, bringing heavy rains to already flooded areas. [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14115 ] This photo-like image was acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov/ ] on the Aqua [ http://aqua.nasa.gov/ ] satellite on February 20, 2007, at 2:15 p.m. local time (11:15 UTC). The storm was turning north around the southern end of Madagscar, headed for the Mozambique Channel. Favio had the recognizable shape of a southern-hemisphere tropical cyclone, with spiral arms showing its clockwise rotation. The spiral arms are well-defined and tightly wound. A distinct eye at the center of the storm is only partially filled with clouds (a "partially closed" eye). These are all signs of a well-developed and powerful storm, consistent with the cyclone's strength. According to the University of Hawaii's Tropical Storm Information Center, [ http:/NaturalHazards/natural_hazards_v2.php3 www.solar.ifa.hawaii.edu/Tropical/ ] Favio had steady winds of around 160 kilometers per hour (100 miles per hour) around the time MODIS made this observation. The high-resolution image provided above is at MODIS' full spatial resolution (level of detail) of 250 meters per pixel. The MODIS Rapid Response System provides this image at additional resolutions. You can also download a 250-meter-resolution Cyclone Favio KMZ file [ http://earthobservatory.nasa.gov/NaturalHazards/Archive/Feb2007/Favio.A2007051.1115.250m.kmz ] for use with Google Earth. [ http://earth.google.com/download-earth.html ] NASA image by Jeff Schmaltz, MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center. |
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Tropical Cyclone Favio
| Title |
Tropical Cyclone Favio |
| Description |
Category 4-strength Cyclone Favio was closing the gap between Madagascar and mainland Africa on February 21, 2007, preparing to strike Mozambique in coming days. This image from the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov ] on NASA's Terra [ http://terra.nasa.gov ] satellite shows Favio stretched across the Mozambique Channel at 9:35 a.m. (local time) Wednesday morning. The outermost bands of clouds on the western side of the storm were already brushing the coast of Inhambane province in southern Mozambique. A thick ring of "boiling" clouds surrounds the eye of the storm. Favio had weakened slightly to a Category 3 storm between the time the image was acquired and this posting. The Joint Typhoon Warning Center forecast issued at 12:00 UTC (2:00 p.m. Mozambique local time) on February 21 indicated that Favio had sustained wind speeds of 100 knots (about 185 kilometers/hour, 115 miles/hour), with gusts up to 125 knots (about 232 kilometers/hour, 144 miles/hour). The forecast called for the storm to weaken before making landfall within 24 hours, but the impacts were still expected to be severe. The country was already water-logged from heavy rains associated with the onset of the monsoon, and severe flooding along the Zambezi River [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14115 ] in mid-February killed dozens of people and forced more than a hundred thousand people to evacuate, according to reports [ http://www.reliefweb.int/rw/RWB.NSF/db900SID/LSGZ-6YMDSC?OpenDocument ] from the International Federation of Red Cross and Red Crescent Societies posted online by ReliefWeb. [ http://www.reliefweb.int/rw/dbc.nsf/doc100?OpenForm ] The high-resolution image provided above is at MODIS' full spatial resolution (level of detail) of 250 meters per pixel. The MODIS Rapid Response System provides this image at additional resolutions. You can also download a 250-meter-resolution Cyclone Favio KMZ file [ http://earthobservatory.nasa.gov/NaturalHazards/Archive/Feb2007/Favio.A2007052.0735.250m.kmz ] for use with Google Earth. [ http://earth.google.com/download-earth.html ] NASA image by Jeff Schmaltz, MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center. |
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Tropical Cyclone Favio
| Title |
Tropical Cyclone Favio |
| Description |
Tropical Cyclone Favio came ashore on the coast of Mozambique on the morning of February 22, 2007. At the time it crossed the shoreline, Favio had lost some strength from its peak the previous day, but still had extremely powerful winds. The cyclone continued to weaken as it passed over land, becoming a tropical depression. As of 8:00 a.m. local time (0600 UTC), winds were down to 60 kilometers per hour (38 miles per hour), according to the South African Weather Service. [ http://www.weathersa.co.za/ ] This photo-like image was acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov/ ] on the Aqua [ http://aqua.nasa.gov/ ] satellite on February 23, 2007, at 1:45 p.m. local time (11:45 UTC), as the tropical depression was crossing into Zimbabwe. The storm still has a distinct balled-up form left over from its cyclone state the previous day, but once over land, the strong circular eye and powerful eyewall storms typical of a cylone were gone. As it traveled farther inland towards the Zambezi River valley, the storm brought heavy rains to Zimbabwe. This region had already suffered from heavy rains associated with the onset of the monsoon, and severe flooding along the Zambezi River [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14115 ] in mid-February killed dozens of people and forced more than a hundred thousand people to evacuate, according to reports [ http://www.reliefweb.int/rw/RWB.NSF/db900SID/LSGZ-6YMDSC?OpenDocument ] from the International Federation of Red Cross and Red Crescent Societies posted online by ReliefWeb. [ http://www.reliefweb.int/rw/dbc.nsf/doc100?OpenForm ] There had been widespread additional evacuations ahead of Cyclone Favio's arrival. You can download a 250-meter-resolution Cyclone Favio KMZ file [ http://earthobservatory.nasa.gov/NaturalHazards/Archive/Feb2007/favio_amo_2007054.kmz ] for use with Google Earth. [ http://earth.google.com/download-earth.html ] NASA image by Jesse Allen, using data provided courtesy of the MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center. |
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Tropical Cyclone Favio
| Title |
Tropical Cyclone Favio |
| Description |
) satellite on February 20 and February 22, 2007. TRMM was placed into its low-earth orbit in November 1997 to measure rainfall from space, however, it has also served as a valuable platform for monitoring tropical cyclones, especially over remote parts of the open ocean. The images show the rainfall intensity. Rain rates in the center of the swath are from the TRMM Precipitation Radar, while those in the outer portion are from the TRMM Microwave Imager. The rain rates are overlaid on infrared data from the TRMM Visible Infrared Scanner. TRMM shows that Favio was a well-organized storm on February 20 (top) with a central eye (dark blue area in the center) surrounded by an eyewall containing heavy rainfall (dark red areas). The storm is also very symmetric with good "banding" in the rain field, demonstrated by the tightly curved bands of moderate rain (green areas) spiraling in towards the center. These features are the hallmarks of a mature, intense tropical cyclone. Though the cyclone did not strike Madagascar, the red areas indicate that it dumped heavy rains on the southern tip of the island. As Favio crossed the Mozambique Channel it reached a peak intensity of 232 kilometers per hour (144 miles per hour, or 125 knots) on the early morning of February 22, making it a Category 4 storm. The cyclone then weakened slightly before slamming into southern Mozambique with sustained winds estimated at 204 km/hr (127 mph, 110 knots). TRMM took the lower image on February 22 soon after Favio made landfall in Mozambique. The image shows that although the eye was not as well defined as in the earlier image, the circulation is still robust, the spiral rainbands (green arcs) are still well defined. Maximum sustained winds were still estimated to be 167 km/hr (114 mph, 90 knots) at the time of this image but quickly diminished thereafter. The bands of heavy rain shown in this image triggered floods [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14146 ] along rivers in Central Mozambique. Unfortunately for Mozambique, the storm-induced floods follow additional serious flooding on the Zambezi River [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14125 ] to the north. TRMM is a joint mission between NASA and the Japanese space agency, JAXA. Images produced by Hal Pierce (SSAI/NASA GSFC) and caption by Steve Lang (SSAI/NASA GSFC)., These images track Cyclone Favio as it brushed the southern tip of the island of Madagascar, and then continued on to Mozambique. The storm came ashore over southern Mozambique on February 22, 2007, as a strong Category 3 storm. As of February 28, news reports had attributed four fatalities to the storm in Vilanculos, a coastal tourist town where the storm made landfall. Favio began as a tropical disturbance on February 11, 2007, in the central Indian Ocean south of Diego Garcia in the Chagos Archipelago. Slow to intensify, the system finally became a tropical storm three days later on February 14. Favio remained a tropical storm for the next several days as it made its way through the west-central Indian Ocean east of Mauritius, and finally began to intensify as it neared Madagascar. It became a Category 1 cyclone on February 19. As it rounded the southern tip of Madagascar, Favio continued to intensify and reached Category 3 intensity on February 20. The cyclone then took a more northwesterly path as it entered the Mozambique Channel. These images of the storm were taken by the Tropical Rainfall Measuring Mission (TRMM [ http://trmm.gsfc.nasa.gov/ ] |
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Tropical Cyclone Favio
| Title |
Tropical Cyclone Favio |
| Description |
) satellite on February 20 and February 22, 2007. TRMM was placed into its low-earth orbit in November 1997 to measure rainfall from space, however, it has also served as a valuable platform for monitoring tropical cyclones, especially over remote parts of the open ocean. The images show the rainfall intensity. Rain rates in the center of the swath are from the TRMM Precipitation Radar, while those in the outer portion are from the TRMM Microwave Imager. The rain rates are overlaid on infrared data from the TRMM Visible Infrared Scanner. TRMM shows that Favio was a well-organized storm on February 20 (top) with a central eye (dark blue area in the center) surrounded by an eyewall containing heavy rainfall (dark red areas). The storm is also very symmetric with good "banding" in the rain field, demonstrated by the tightly curved bands of moderate rain (green areas) spiraling in towards the center. These features are the hallmarks of a mature, intense tropical cyclone. Though the cyclone did not strike Madagascar, the red areas indicate that it dumped heavy rains on the southern tip of the island. As Favio crossed the Mozambique Channel it reached a peak intensity of 232 kilometers per hour (144 miles per hour, or 125 knots) on the early morning of February 22, making it a Category 4 storm. The cyclone then weakened slightly before slamming into southern Mozambique with sustained winds estimated at 204 km/hr (127 mph, 110 knots). TRMM took the lower image on February 22 soon after Favio made landfall in Mozambique. The image shows that although the eye was not as well defined as in the earlier image, the circulation is still robust, the spiral rainbands (green arcs) are still well defined. Maximum sustained winds were still estimated to be 167 km/hr (114 mph, 90 knots) at the time of this image but quickly diminished thereafter. The bands of heavy rain shown in this image triggered floods [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14146 ] along rivers in Central Mozambique. Unfortunately for Mozambique, the storm-induced floods follow additional serious flooding on the Zambezi River [ http://earthobservatory.nasa.gov/NaturalHazards/natural_hazards_v2.php3?img_id=14125 ] to the north. TRMM is a joint mission between NASA and the Japanese space agency, JAXA. Images produced by Hal Pierce (SSAI/NASA GSFC) and caption by Steve Lang (SSAI/NASA GSFC)., These images track Cyclone Favio as it brushed the southern tip of the island of Madagascar, and then continued on to Mozambique. The storm came ashore over southern Mozambique on February 22, 2007, as a strong Category 3 storm. As of February 28, news reports had attributed four fatalities to the storm in Vilanculos, a coastal tourist town where the storm made landfall. Favio began as a tropical disturbance on February 11, 2007, in the central Indian Ocean south of Diego Garcia in the Chagos Archipelago. Slow to intensify, the system finally became a tropical storm three days later on February 14. Favio remained a tropical storm for the next several days as it made its way through the west-central Indian Ocean east of Mauritius, and finally began to intensify as it neared Madagascar. It became a Category 1 cyclone on February 19. As it rounded the southern tip of Madagascar, Favio continued to intensify and reached Category 3 intensity on February 20. The cyclone then took a more northwesterly path as it entered the Mozambique Channel. These images of the storm were taken by the Tropical Rainfall Measuring Mission (TRMM [ http://trmm.gsfc.nasa.gov/ ] |
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Tropical Cyclone Jaya
| Title |
Tropical Cyclone Jaya |
| Description |
Tropical Cyclone Jaya came ashore in northern Madagascar in the morning of April 2, 2007 at around 11:00 a.m. local time (08:00 UTC). The storm formed in the Indian Ocean on March 30 and traveled westward toward Madagascar as predicted. What was not predicted, however, was its explosive growth in power from a strong tropical storm to a powerful Category 3 cyclone [ http://www.nhc.noaa.gov/aboutsshs.shtml ] in just 36 hours, according to figures provided by the University of Hawaii's Tropical Storm Information Center. [ http://www.solar.ifa.hawaii.edu/Tropical/tropical.html ]Fortunately, the intensification took place while Jaya was still far from Madagascar. This photo-like image was acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) [ http://modis.gsfc.nasa.gov/ ] on the Aqua [ http://aqua.nasa.gov/ ] satellite on April 3, 2007, at 1:15 p.m. local time (10:15 UTC). The storm was a tropical cyclone with a circular shape, but no distinct eye at its center. According to the University of Hawaii's Tropical Storm Information Center, [ http://www.solar.ifa.hawaii.edu/Tropical/ ] Cyclone Jaya's sustained winds had fallen in strength to roughly 125 kilometers per hour (80 mph) at the time this image was acquired. When the storm made landfall on Madagascar, sustained winds were around 150 kilometers per hour (90 miles per hour), a marked change from 200 km/hr (125 mph) just twelve hours earlier. While much weakened, Jaya remained a powerful storm. Furthermore, it struck the northern part of Madagascar where a series of other cyclones have also come ashore in recent months. Forecasters were concerned that Jaya might reform after crossing the island and head inland into Mozambique, where residents are recovering from floods caused by recent heavy rains. The high-resolution image provided above is at MODIS' full spatial resolution (level of detail) of 250 meters per pixel. The MODIS Rapid Response System provides this image at additional resolutions. [ http://rapidfire.sci.gsfc.nasa.gov/gallery/?2007093-0403/Jaya.A2007093.1015 ] You can download a 250-meter-resolution Cyclone Jaya KMZ file [ http://earthobservatory.nasa.gov/NaturalHazards/Archive/Apr2007/Jaya.A2007093.1015.250m.kmz ] for use with Google Earth. [ http://earth.google.com/download-earth.html ] NASA image by Jeff Schmaltz, MODIS Rapid Response Team, [ http://rapidfire.sci.gsfc.nasa.gov ] Goddard Space Flight Center. |
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