Tropical Storm Watch issued September 30 at 10:11PM ChST by NWS Tiyan GU
...TROPICAL STORM WATCH ISSUED FOR SAIPAN AND TINIAN...
.NEW INFORMATION...
A Tropical Storm Watch has now been issued for Saipan and Tinian.
.AREAS AFFECTED...
This local statement provides information and recommended actions
for people on Saipan, Tinian, Agrihan, Pagan and Alamagan in the
Commonwealth of the Northern Marianas.
.Watches/Warnings...
A Tropical Storm Watch is now in effect for Tinian, Saipan, and
adjacent coastal waters.
A Tropical Storm Watch remains in effect for Alamagan, Pagan and
Agrihan Islands in the CNMI.
A Tropical Storm Watch means that Tropical Storm conditions are
possible within the next 48 hours somewhere within the specified
areas.
All persons in the watch areas should review their preparedness
plan and begin to take actions to prepare for conditions as
indicated by your local forecast and additional details, below,
for your island.
.STORM INFORMATION...
As of 9 PM, 26W is centered about 340 miles east-southeast of Pagan,
moving west at 8 mph with maximum sustained winds of 35 mph. The
current forecast track reflects an intensifying 26W passing through
the Marianas just north of Anatahan Friday before curving
northward just west of the islands by Saturday.
.SITUATION OVERVIEW...
Tropical Depression 26W will maintain a steady pace of around 10 mph
as it heads toward the northern Marianas before coming to a crawl
near and just west of the islands as it makes the turn to the north
late week. This slow northward turn will prolong the duration of
damaging winds across Saipan, Tinian and the northern islands, likely
leading to a lengthy period of time of damaging to destructive
tropical storm conditions beginning Thursday evening and continuing
into Sunday afternoon.
.PRECAUTIONARY/PREPAREDNESS ACTIONS...
Keep informed while listening for possible warnings. Secure loose
outdoor objects which can be blown around. Strongly consider
evacuating if you live in a metal roof or container home, and do
so if ordered by local officials.
.WIND INFORMATION...
Northwest winds of 10 to 15 mph will turn toward the west,
then southwest while increasing through Friday morning. Winds will
possibly reach tropical storm-force of 39 to 45 mph with gusts to
65 mph Thursday evening. Strong tropical storm-force winds look
to remain north of Saipan and Tinian at this time.
.COASTAL INUNDATION AND SURF INFORMATION...
Surf will initially build to 8 to 11 ft along north-facing reefs by
Thursday night, then quickly spread along west-facing reefs as the
center crosses the far northern CNMI early Friday morning. As 26W
continues to strengthen, surf will continue to increase. Then, as 26W
passes west of the northern CNMI late Friday through Saturday, surf
will build by several feet along south facing reefs as well. Coastal
inundation of 1 to 2 feet will be possible along all reefs.
.OTHER STORM EFFECTS...
Widespread locally heavy showers could produce rainfall totals of 4
to 8 inches by early Monday morning, with locally heavier amounts
possible.
Take small loose object indoors. Identify suitable shelter. Stock up
a few days worth of food and water. If no concrete shelter is
available, look for a cave or something similar. Take action to
protect food crops or other possessions as appropriate.
.WIND INFORMATION...
Northerly winds of 10 to 15 mph will turn toward the northwest,
then southwest and increase through Friday as 26W crosses the
northern CNMI and strengthens, potentially becoming a typhoon Friday
afternoon after it crosses the islands. Tropical storm force winds of
39 to 50 mph may begin by Thursday evening as the center looks to
pass to the south of Alamagan. Depending on the track and intensity,
winds may increase to strong tropical storm-force of 58 to 65 mph
early Friday morning for islands closest to the center. Typhoon
force winds are not expected at this time, but this may change if
26W develops faster or moves slower than previous forecasts
indicate.
.COASTAL INUNDATION AND SURF INFORMATION...
Surf will initially build to 8 to 11 ft along east-facing reefs by
Thursday night, then quickly spread along north and west-facing
reefs as the center crosses the northern CNMI early Friday morning,
increasing to 12 to 16 ft. As 26W continues to strengthen, hazardous
surf will continue to increase, especially for islands closest to the
center. Then, as 26W passes west of the northern CNMI late Friday
through Saturday, surf will build by several feet along south facing
reefs as well, likely becoming hazardous. Coastal inundation of 1 to
2 feet will be possible along all reefs.
.OTHER STORM EFFECTS...
Widespread locally heavy showers could produce rainfall totals of 6
to 12 inches by early Monday morning, with locally heavier amounts
possible.
Varoitus voimassa ke klo 15:11 - ke klo 23:45
