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Bejisa (Southern Indian Ocean)
January 3, 2014

http://trmm.gsfc.nasa.gov/trmm_rain/Events/bejisa_29_december_2013_1507_utc_trmm_pr_flyby.mov

 

 

[image-142] Bejisa Beginning to Wink Out of Existence

Bejisa's eye which was so prominent in the last satellite image has now begun to wink out of existence and to dissipate in strength.  Bejisa's current location is 160 miles SSE of St Denis, La Reunion and is moving south southeast at 8 knots.  Even though Bejisa has begun to dissipate, it is still a very strong storm with maximum sustained winds of 75 knots gusting to 90 knots. 

Since it has already passed La Reunion and Mauritius, it is no longer threatening any landmasses, however La Reunion continues with a Code Blue alert due to the outer bands still passing over the island.  Maximum wave height is 26 feet.  It is expected that over the next twelve hours the storm will veer southwest and continue its weakening trend.

Text credit: Lynn Jenner
NASA's Goddard Space Flight Center


Jan. 02, 2014 - La Reunion and Mauritius Getting Blasted by Bejisa [image-126]

Tropical Cyclone Bejisa's eye is just 85 miles west northwest of La Reunion, however, its influence is still very much felt on both islands.  Maximum sustained winds in the storm are 110 knots (126.5 mph) with gusts to 135 knots (155 mph).  This is a hurricane strength storm.  Wave height has been measured at 35 feet.  Both La Reunion and Mauritius islands are being affected by the outer bands of the storm.

Bejisa is moving southeast and is at peak intensity. The storm will pass just west of La Reunion late on January 3, before veering southwest and weakening rapidly.  The hazard on both islands consists of high swells, high winds and heavy rain. Gusts of 94 mph have been reported on La Reunion in the last hour.

Severe storm warnings have been issued on both islands for this storm.  For more information on the storm, visit:  http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/index.html  (for La Reunion) and http://metservice.intnet.mu/cyclone-bulletin-english-mauritius.php for Mauritius.
 

Text credit: Lynn Jenner
NASA's Goddard Space Flight Center


Jan. 01, 2014 - Bejisa Threatening La Reunion and Mauritius [image-110]

Tropical Cyclone Bejisa is currently located 136 miles northwest of St. Denis, La Reunion and is tracking south southeast at 8 knots.  The storm's maximum sustained winds are 105 knots with gusts to 130 knots.  This compares to hurricane strength.  Maximum significant wave height is 35 feet.

Bejisa is intensifying, and is expected to reach a peak intensity of 115 knots within 12 hours. The storm will pass just west of La Reunion late tomorrow, before veering southwest and weakening rapidly due to cooler sea surface temperatures and vertical wind shear.

The island of Mauritius is under a class II tropical cyclone warning.  This is issued so as to allow, as far as practicable, 12 hours of daylight before the occurrence of gusts of 120 km/h.  The island of La Reunion is under an orange alert.  The hazard on both islands consists of high swells, high winds and heavy rain. Gusts of 70 mph have been reported on La Reunion.
 

Text credit: Lynn Jenner
NASA's Goddard Space Flight Center


Dec. 31, 2013 - Tropical Cyclone Bejisa Continues to Intensify [image-94]

Bejisa is located 446 nautical miles north-northwest of St. Denis, La Reunion and has tracked south-southeastward at 7 knots/hr. for the past six hours. Winds of 64 knots and higher are occurring within 25 miles of the center.
The track of this storm has been influenced by a subtropical ridge located to the east of the system. This will remain the dominant steering influence. The storm will then turn slightly southeastward as a mid-latitude trough weakens
the subtropical ridge. The warm sea surface temperatures along with a favorable upper level environment will promote further intensification of the storm. It is expected that the storm will peak at approximately 115 knots before veering southwest and passing near La Reunion and Mauritius on 2 January. At that point it is
predicted that the storm will start to weaken. This storm is currently threatening NE Madagascar, La Reunion, and Mauritius. The maximum wave height is 22 feet. Bejisa's strength is comparable to a hurricane at this point.

The satellite image to the right depicts a system that has maintained a tight 10 nautical mile eye with a compact eye wall structure.

A class I tropical cyclone warning is in force on Mauritius; a comparable Yellow Pre-alert  is in force on La Reunion.

Text credit: Lynn Jenner
NASA's Goddard Space Flight Center


December 30, 2013 - Tropical Cyclone Bejisa Threatening Madagascar, La Reunion, and Mauritius [image-51][image-78]

Tropical Cyclone 06S quickly intensified within seven hours into named cyclone Bejisa on December 29, 2013. Reports had the cyclone moving erradically at first and then the cyclone was to intensify to about 75 knots. Currently Benjisa is located
620 nautical miles north northwest of La Reunion and has tracked southward at 5 knots over the past six hours. Maximum sustained winds currenlty are between 60 and 75 knots which is comparable to a tropical storm.
Maximum significant wave height is 15 feet.

Favorable upper level environment in addition to warm sea surface temperature will promote further intensification of the storm. It is expected that Benjisa will peak at 90 knots giving it comparable strength to a hurricane.
Benjisa will be at that strength upon passing near La Reunion and Mauritius on 3 January. Increasing vertical wind shear and westerly winds will then begin to weaken the system.

Text credit: Lynn Jenner
NASA's Goddard Space Flight Center

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MODIS image of Bejisa
The MODIS instrument on the Terra satellite captured this image of Tropical Cyclone Bejisa off the coast of Madagascar on Dec. 30, 2013 at 6:45 UTC (1:15 am EST).
Image Credit: 
NASA Goddard MODIS Rapid Response Team
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Tropical Cyclone Bejisa
This image from the Joint Typhoon Warning Center shows Tropical Cyclone Bejisa taken by EUMETSAT off the coast of Madagascar.
Image Credit: 
EUMETSAT
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Tropical Cyclone Bejisa
This multispectral satellite image was taken on December 31, 2013 at 0824 UTC (3:24 am EST). The cyclone is grazing the coast of Madagascar in this image.
Image Credit: 
JTWC/SATOPS
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Tropical Cyclone Bejisa
This infrared satellite image shows Tropical Cyclone Bejisa as it tracks southward along the coast of Madagascar.
Image Credit: 
JTWC/SATOPS
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Tropical Cyclone Bejisa near La Reunion
Satellite imagery shows the eye of Tropical Cyclone Bejisa right off the coast of La Reunion. Both La Reunion and Mauritius are feeling the effects of the outer bands of the storm.
Image Credit: 
JTWC/SATOPS
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Tropical Cyclone Bejisa
Bejisa has past La Reunion and Mauritius but its outer bands are still affecting the islands as the storm continues to track southward and dissipate.
Image Credit: 
JTWC/SATOPS
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Page Last Updated: January 21st, 2014
Page Editor: Lynn Jenner