Typhoon Warning issued April 15 at 3:30AM ChST by NWS Tiyan GU
Details
...SINLAKU DOWNGRADED TO TYPHOON AND MOVING NORTHWEST...
.NEW INFORMATION...
Sinlaku was downgraded from Super Typhoon to Typhoon.
.AREAS AFFECTED...
This local statement provides important information and recommended
actions for people in Guam and the Northern Marianas.
.WATCHES/WARNINGS...
A Typhoon Warning continues for Rota, Tinian, and Saipan. A Typhoon
Warning continues for Alamagan, Pagan, and Agrihan. A Tropical Storm
Warning and a Typhoon Watch continues for Guam.
A Flood Watch is in effect for all of Guam and the Northern
Marianas. Please listen closely for any Flood Warnings that might be
in effect for your area.
Please check the latest public and marine forecasts for detailed
information about additional hazards.
.STORM INFORMATION...
At 1 AM ChST...the center of Typhoon Sinlaku (04W) was located near
latitude 15.1N...longitude 145.7E. This was about, 5 miles west-
southwest of Saipan, 10 miles north of Tinian, and 130 miles north-
northeast of Guam. Storm motion was northwest, 325 degrees, at 5 mph.
Storm intensity was 145 mph.
.SITUATION OVERVIEW...
The eye of Typhoon Sinlaku (04W) is moving northwest and starting to
move away from Tinian and Saipan. Winds up to 145 mph are still
found within the eyewall, so winds of excess of 115 mph will continue
at Tinian and Saipan for a few more hours, but as the eye moves off
to the northwest winds will start to decrease. Tropical Storm force
winds extend across Rota and just north of Guam. Tropical storm force
winds will be slow to subside across the Marianas due to the size of
the storm. Typhoon Sinlaku will begin to pass through the northern
CNMI just west of the islands of Alamagan, Pagan, and Agrihan,
through the latter half of the week.
Recommendations
People should be in a designated shelter or in a sturdy and
reinforced concrete building to ride out the storm as strong tropical
storm force winds are are occurring at Rota, while devastating winds
in excess of 115 mph are expected at Tinian and Saipan over the next
few hours as the center of TY Sinlaku moves northwest and starts to
move away from Tinian and Saipan. These winds will continue through
the into the early morning hours and then slowly decreasing through
the rest of today and tonight. Due to the size of the storm, the
latest forecast has tropical storm force winds continuing at Rota
through Thursday morning, and Thursday evening for Tinian and
Saipan. Even when winds start to decrease, remain indoors until the
"all clear" is given.
Stay indoors during heavy rain and windy conditions associated with
Typhoon Sinlaku (04W). The window of time to complete preparations
for the protection of life and property has closed. Find shelter to
ride out the storm. Remain in a sturdy shelter until the "all clear"
is given. Heed the advice of your local emergency managers and
officials, and continue to monitor forecasts by your local National
Weather Service office in Tiyan, Guam.
.WIND INFORMATION...
Northeasterly tropical storm force winds around 39 mph are expected
to increase through today with typhoon winds around 75 mph possibly
starting late tonight or Thursday morning as Sinlaku passes to the
west, and winds shift toward the southeast. The size of the storm and
overall storm motion will maintain southeast tropical storm winds
through Friday afternoon as Sinlaku continues on its accelerated
northward trek after exiting the Marianas later in the week.
.COASTAL INUNDATION AND SURF INFORMATION...
Seas of 20 to 30 feet remain possible, with dangerous surf and
significant coastal inundation and beach erosion possible.
.OTHER STORM EFFECTS...
Heavy, intense rainfall with TY Sinlaku is likely for much of the
week, bringing rainfall amounts of 10 to 13 inches by Friday, with
rainfall amounts upwards of 15 to 25 inches near the center, as the
system crosses the Marianas. The exact track of Sinlaku will
determine where the heaviest rainfall will set up across the islands.
Stay indoors during heavy rain and windy conditions associated with
Typhoon Sinlaku (04W). The window of time to complete preparations
for the protection of life and property has closed. Find shelter to
ride out the storm. Remain in a sturdy shelter until the "all clear"
is given. Heed the advice of your local emergency managers and
officials, and continue to monitor forecasts by your local National
Weather Service office in Tiyan, Guam.
.WIND INFORMATION...
Northeasterly tropical storm force winds around 39 mph are expected
to increase today with typhoon winds around 75 mph possibly starting
Thursday morning as Sinlaku passes to the west, and winds shift
toward the southeast. The size of the storm and overall storm motion
will maintain southeast tropical storm winds through Friday afternoon
as Sinlaku continues on its accelerated northward trek after exiting
the Marianas later in the week.
.COASTAL INUNDATION AND SURF INFORMATION...
Seas of 20 to 30 feet remain possible, with dangerous surf and
significant coastal inundation and beach erosion possible.
.OTHER STORM EFFECTS...
Heavy, intense rainfall with TY Sinlaku is likely for much of the
week, bringing rainfall amounts of 8 to 13 inches by the Friday,
with rainfall amounts upwards of 15 to 25 inches near the center, as
the system crosses the Marianas. The exact track of Sinlaku will
determine where the heaviest rainfall will set up across the islands.
Stay indoors during heavy rain and windy conditions associated with
Typhoon Sinlaku (04W). The window of time to complete preparations
for the protection of life and property has closed. Find shelter to
ride out the storm. Remain in a sturdy shelter until the "all clear"
is given. Heed the advice of your local emergency managers and
officials, and continue to monitor forecasts by your local National
Weather Service office in Tiyan, Guam.
.WIND INFORMATION...
Northeasterly tropical storm force winds around 39 mph will be
increasing today with typhoon winds around 75 mph possibly reaching
the island around Thursday afternoon as Sinlaku passes nearby to the
west, and winds shift toward the southeast. The size of the storm
and overall storm motion will maintain southeast tropical storm winds
into Friday evening as Sinlaku continues on its accelerated
northward trek after exiting the Marianas.
.COASTAL INUNDATION AND SURF INFORMATION...
Seas of 20 to 30 feet will be possible, with dangerous surf and
significant coastal inundation and beach erosion possible.
.OTHER STORM EFFECTS...
Heavy, intense rainfall with TY Sinlaku is likely for much of the
week, bringing rainfall amounts of 8 to 13 inches by the Friday, with
rainfall amounts upwards of 15 to 25 inches near the center, as the
system crosses the Marianas. The exact track of Sinlaku will
determine where the heaviest rainfall will set up across the islands.