Laurence was a Category 4 storm (on the Saffir-Simpson scale) with winds of 115 knots (213 kilometers per hour or 132 miles per hour) at its height on December 15, the day before it went ashore the first time, according to the Joint Typhoon Warning Center. It degraded into a tropical storm over land, re-emerged over the Indian Ocean and grew into a Category 3 cyclone with winds of 100 knots (185 km/hr or 115 mph) on December 21. The storm was weakening as it went ashore the second time. When Aqua MODIS acquired this photo-like image at 2:00 local time (6:00 UTC), it was somewhere between a Category 3 and Category 1 storm.
Laurence was clearly a mature, well-developed cyclone on December 21. A cloudy eye is distinctly visible as a shadowed dimple in the center of the tightly packed bands of spiraling clouds. The storm is circular, undistorted by the upper-level winds that tear cyclones apart.
The storm’s powerful winds caused significant damage to buildings along the coast, said ABC News. No injuries had been reported, though damage assessments were just beginning on the morning of December 22, when the storm had moved well inland.
Here's the track data::
Date: 13-21 DEC 2009
Cyclone-4 LAURENCE
ADV LAT LON TIME WIND PR STAT
1 -12.70 128.00 12/13/06Z 30 - TROPICAL DEPRESSION
2 -12.10 126.90 12/13/18Z 35 - TROPICAL STORM
3 -13.50 127.80 12/14/06Z 45 - TROPICAL STORM
4 -13.30 126.60 12/14/18Z 55 - TROPICAL STORM
5 -14.40 125.50 12/15/06Z 75 - CYCLONE-1
6 -15.00 124.60 12/15/18Z 115 - CYCLONE-4
7 -16.30 124.20 12/16/06Z 90 - CYCLONE-2
8 -16.80 124.20 12/16/18Z 65 - CYCLONE-1
9 -17.20 123.40 12/18/12Z 35 - TROPICAL STORM
10 -16.70 122.40 12/19/00Z 35 - TROPICAL STORM
11 -17.30 121.80 12/19/12Z 35 - TROPICAL STORM
12 -17.80 120.70 12/20/00Z 55 - TROPICAL STORM
13 -18.60 120.50 12/20/12Z 80 - CYCLONE-1
14 -19.00 120.40 12/21/00Z 100 - CYCLONE-3
15 -20.00 120.80 12/21/12Z 70 - CYCLONE-1
+12 -21.10 121.20 12/22/00Z 30 - TROPICAL DEPRESSION
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