JIC Release No. 23 - Typhoon Mawar Update: Conditions Expected to Worsen


JIC Release No. 23 - Typhoon Mawar Update: Conditions Expected to Worsen

Stay indoors until COR 4 is declared. 


Conditions Worsening in the Next Few Hours:

Typhoon Mawar continues on a track toward Guam. As of 1 p.m., Mawar was located 13.2 degrees north latitude and 145.5 degrees east longitude, about 45 miles east-southeast of Guam and 135 miles south of Saipan. It has maximum sustained winds of 140 mph. The storm is experiencing an eyewall replacement cycle which will affect its trajectory as it moves closer to Guam. 


Conditions are expected to worsen within the next few hours. Based on the current forecast track, the eye is expected to pass over central Guam sometime between 5 p.m. to 7 p.m., though passage over northern Guam or the southern part of the Rota Channel is still possible. 


Guam is experiencing 61 mph to 74 mph winds, expecting to gradually increase to typhoon force winds between 74 mph to 104 mph over the next couple of hours. Typhoon force winds extend outward from the center up to 50 miles. 


A flash flood warning is in effect for Guam. Between 1 and 3 inches of rain has already fallen. Additional rainfall amounts of 10 to 15 inches are possible, with locally 20 to 25 inches possible. Flash flooding is ongoing or expected to begin shortly. 


The community is reminded to remain indoors, stay away from windows; and avoid travel outdoors, as heavy winds, rains and flooding could be life-threatening. 


Federal Stakeholders standby to support Guam:

President Biden has granted an emergency declaration for Guam ahead of Typhoon Mawar. This declaration authorizes the Federal Emergency Management Agency (FEMA) to supplement territorial and local response efforts to help save lives, protect property and public safety.


FEMA has more than 50 staff in Guam with dozens more federal partners on the ground to support incident management, communications, debris removal, engineering, health and military support if needed. If the immediate needs of survivors supersede local and territorial resources, FEMA can provide commodities like meals, water, blankets, cots, tents, tarps, baby supplies and more. FEMA can also mission assign other federal agencies to perform or contract work, if needed.


To read the emergency declaration for Guam in its entirety, CLICK HERE, or visit whitehouse.gov


Local Radio Stations Providing Updates:

The Joint Information Center will continue to use all means of communication available throughout the duration of the storm. Tune to the following local radio stations for the latest updates:

  • 95.5 FM KStereO

  • 93.3 FM The Point

  • 93.9 FM The Breeze

  • 88.1 FM KHMG

  • 97.5 FM Power 98


Visit the following links for the latest advisory information:


The Guam Behavioral Health and Wellness Center (GBHWC) Suicide & Crisis Lifeline remains operational 24/7. The community may call or text the hotline at 988, or chat online at 988lifeline.org


For more information, contact the Joint Information Center at (671) 478-0208/09/10.



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June 2018 is Typhoon Preparedness Month