434 
WWMY80 PGUM 230821 AAA
SPSMY 

SPECIAL WEATHER STATEMENT...UPDATED
NATIONAL WEATHER SERVICE TIYAN GU
400 PM CHST TUE AUG 23 2016

GUZ001>004-232200-
GUAM-ROTA-TINIAN-SAIPAN-
630 PM CHST TUE AUG 23 2016

UPDATED FOR NEW INFORMATION ON DISTURBANCE 90W

...TROPICAL DISTURBANCE INTENSIFYING NEAR ROTA...

A TROPICAL DISTURBANCE CENTERED ABOUT 20 MILES NORTHEAST OF ROTA
NEAR 14.3 DEGREES NORTH AND 145.4 DEGREES EAST IS THE SUBJECT OF A
TROPICAL CYCLONE FORMATION ALERT BY THE JOINT TYPHOON WARNING CENTER
AND IS INTENSIFYING. THE DISTURBANCE IS MOVING QUICKLY NORTH AT
ABOUT 20 MPH ON A COURSE THAT WILL TAKE IT NEAR SAIPAN AND TINIAN
LATER TONIGHT AND NEAR PAGAN ISLAND BY MORNING.

AS THE DISTURBANCE MOVES NORTH...WINDS WILL SHIFT TO SOUTHWEST 
TONIGHT AND INCREASE TO 25 MPH WITH GUSTS TO 35 MPH OVERNIGHT 
BEFORE DECREASING ON WEDNESDAY. IN ADDITION...SCATTERED TO NUMEROUS 
SHOWERS AND ISOLATED THUNDERSTORMS ARE LIKELY TONIGHT...WITH THE 
HEAVIEST RAIN EXPECTED FOR GUAM AND ROTA. COMBINED SEAS OF 5 TO 
7 FEET WILL BUILD TO BETWEEN 7 AND 10 FEET OVERNIGHT WITH THE 
HIGHEST SEAS EAST OF THE ISLANDS. 

THE SYSTEM MAY SLIDE WEST OF SAIPAN AND TINIAN...BRINGING SOUTH TO
SOUTHEAST WINDS 25-30 MPH WITH GUSTS TO 40 MPH AFTER MIDNIGHT. THE
SYSTEM WILL LIKELY BE UPGRADED TO A TROPICAL DEPRESSION LATER
TONIGHT. 

IF YOU ARE PLANNING ANY OUTDOOR OR MARINE ACTIVITIES...STAY INFORMED 
ON THE LATEST STATEMENTS AND ADVISORIES ISSUED BY THE NATIONAL 
WEATHER SERVICE AND LOCAL EMERGENCY MANAGEMENT OFFICES. KEEP AWARE 
OF MARINE CONDITIONS...AS HAZARDOUS SEAS ARE EXPECTED TONIGHT AND 
WEDNESDAY MORNING. PRODUCTS ISSUED BY THE NATIONAL WEATHER SERVICE 
ARE POSTED ON THE WFO GUAM WEB PAGE AT WWW.PRH.NOAA.GOV/GUAM/ 
(ALL LOWER CASE).

$$

GUARD

337 
WWMY80 PGUM 230607
SPSMY 

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TIYAN GU
400 PM CHST TUE AUG 23 2016

GUZ001>004-232200-
GUAM-ROTA-TINIAN-SAIPAN-
400 PM CHST TUE AUG 23 2016

...TROPICAL DISTURBANCE DEVELOPING NEAR GUAM...

A DEVELOPING TROPICAL DISTURBANCE CENTERED ABOUT 20 MILES SOUTHEAST
OF ROTA NEAR 14.0 DEGREES NORTH AND 145.5 DEGREES EAST IS THE 
SUBJECT OF A TROPICAL CYCLONE FORMATION ALERT BY THE JOINT TYPHOON 
WARNING CENTER. THE DISTURBANCE IS MOVING QUICKLY NORTH AT ABOUT 
25 MPH ON A COURSE THAT WILL TAKE IT NEAR PAGAN ISLAND WEDNESDAY 
MORNING.

AS THE DISTURBANCE MOVES NORTH...WINDS WILL SHIFT TO SOUTHWEST 
TONIGHT AND INCREASE TO 20 TO 25 MPH WITH GUSTS TO 30 MPH OVERNIGHT 
BEFORE DECREASING ON WEDNESDAY. IN ADDITION...SCATTERED TO NUMEROUS 
SHOWERS AND ISOLATED THUNDERSTORMS ARE LIKELY TONIGHT...WITH THE 
HEAVIEST RAIN EXPECTED FOR GUAM AND ROTA. COMBINED SEAS OF 5 TO 
7 FEET WILL BUILD TO BETWEEN 7 AND 10 FEET OVERNIGHT WITH THE 
HIGHEST SEAS EAST OF THE ISLANDS. 

IF YOU ARE PLANNING ANY OUTDOOR OR MARINE ACTIVITIES...STAY INFORMED 
ON THE LATEST STATEMENTS AND ADVISORIES ISSUED BY THE NATIONAL 
WEATHER SERVICE AND LOCAL EMERGENCY MANAGEMENT OFFICES. KEEP AWARE 
OF MARINE CONDITIONS...AS HAZARDOUS SEAS ARE EXPECTED TONIGHT AND 
WEDNESDAY MORNING. PRODUCTS ISSUED BY THE NATIONAL WEATHER SERVICE 
ARE POSTED ON THE WFO GUAM WEB PAGE AT WWW.PRH.NOAA.GOV/GUAM/ 
(ALL LOWER CASE).

$$

MIDDLEBROOKE