KROVANH developed as a tropical depression over the Pacific to the east of the Philippines (near 12.5¢XN, 144.7 ¢XE) around 00 UTC on 17th August and moved to the northwest at a speed of over 10 km/h.
Three days later, it intensified into a tropical storm near 19.0¢XN, 113.3¢XE around 12 UTC on 20th, with central pressure of 998 hPa and central maximum wind of 65 km/h. It then turned slightly to the west-southwest, heading Luzon.
One day later, it became a severe tropical storm near 17.8¢XN and 125.8¢XE around 18 UTC on 21st, with central pressure of 985 hPa and central maximum wind of 92 km/h.
Twelve hours later, it attained typhoon strength offshore Luzon over the sea (near 17.7¢XN, 123.3¢XE) around 06 UTC on 22nd, with central pressure of 970 hPa and central maximum wind of 120 km/h.
It traversed northern Luzon during the night on 22nd. After entered the South China Sea in the morning of the following day, it veered to the west-northwest towards the coast of southern China.
KROVANH was closest to Macao at about 300 km (near 19.6¢XN, 112.5¢XE) to the south-southwest around 14 UTC on 24th.
Within day 25th, it crossed Leizhou Peninsula, weakened into a severe tropical storm overland, entered Gulf of Beibu and made landfall again near the boundary between China and Viet Nam. It then continued dissipating overland in Viet Nam.
Record of tropical cyclone signal hoisting:
|
|
DATE
|
TIME
|
HOISTED SIGNAL
|
|
23 / AUG
|
11:30
|
The standby signal No. 1
|
|
24 / AUG
|
13:30
|
The strong wind signal No. 3
|
|
25 / AUG
|
15:00
|
All signals were lowered
|
 |
|