Federated States of Micronesia

Yap State: All Yap Island locations were relatively dry during the first half of 2010, with the months of February and May being particularly dry (less than 3 inches in each month). 2010 First Half rainfall totals were about two-thirds of normal, while 2nd Quarter totals edged closer to normal (75%). The weather at Yap Island and the atolls of Yap State was mostly unremarkable during the first half of 2010. Water supplies remained adequate despite the relatively dry conditions. On the morning of 23 March, Tropical Storm Omais (the only named tropical cyclone in the western North Pacific basin in the first half of 2010) passed close to the island of Ulithi. No significant damage or injuries were reported.

Yap State Rainfall Summary 2nd Quarter and 1st Half 2010

Climate Outlook: Since Yap State is located in the western side of Micronesia, a westward shift of basin tropical cyclone activity and also of the western North Pacific monsoon will not substantially affect the rainfall or the typical distribution of tropical cyclones in the region. Near normal rainfall is anticipated for all islands of Yap State for at least the remainder of 2010 and probably through the next dry season. Similarly, the odds of gale-force winds or greater from a tropical cyclone on Yap Island or any of its northern atolls will be near normal.

Predicted rainfall for Yap State from July 2010 through June 2011 is as follows:

Forecast rainfall quantities represent BEST ESTIMATES given the probabalistic forecast for each particular season and station.

source: UOG-WERI