Last update: 07.09.08 - Wed - 12:44:49 AM (EDT)
Current Watches, Warnings and Advisories for Guam
Issued by the National Weather Service
This page contains watches, warnings and advisories that are in effect for Guam. This file is usually updated about every two minutes.
This same information is available in other file formats including the XML based RSS and CAP formats.
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List of Active Alerts by County
GUC110 (?)
flood advisory
GUC120 (?)
flood advisory
Flood Advisory
GUC110 (?) (Guam)
FLOOD ADVISORY NATIONAL WEATHER SERVICE TIYAN GU 1135 AM CHST WED JUL 9 2008 GUC110-120-090730- /O.NEW.PGUM.FA.Y.0002.080709T0127Z-080709T0730Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 1135 AM CHST WED JUL 9 2008 THE NATIONAL WEATHER SERVICE IN TIYAN GUAM HAS ISSUED AN * URBAN AND SMALL STREAM FLOOD ADVISORY FOR... SAIPAN AND TINIAN INCLUDING THE CITIES OF...GARAPAN...CHALAN KANOA... KOBLERVILLE...SAN ANTONIO AND SUSUPE * UNTIL 530 PM CHST WEDNESDAY * AT 1127 AM CHST SAIPAN WEATHER OBSERVATIONS INDICATED THAT 0.56 INCHES OF RAIN HAS ALREADY FALLEN TODAY. MEANWHILE...PGUA WSR-88D SHOWS SUBSTANTIAL ADDITIONAL RAINFALL APPROACHING. IF TOTAL RAINFALL IS ENOUGH TO TEMPORARILY OVERWHELM DRAINAGE SYSTEMS... THE PROBLEMS WILL LIKELY PERSIST FOR SEVERAL HOURS AFTER THE RAIN STOPS. THEREFORE THIS ADVISORY IS ISSUED FOR 6 HOURS...AND MAY BE RE-ISSUED IF IT IS STILL RAINING AT THAT TIME. A FLOOD ADVISORY MEANS EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE ELEVATED RIVER OR STREAM FLOWS...PONDING OF WATER IN URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER POOR DRAINAGE AREAS AND LOW LYING SPOTS. IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY. LAT...LON 1504 14587 1504 14577 1489 14573 1472 14550 1508 14549 1535 14570 1535 14583 1531 14587 $$ STANKOIssuing Weather Forecast Office Homepage
Flood Advisory
GUC120 (?) (Guam)
FLOOD ADVISORY NATIONAL WEATHER SERVICE TIYAN GU 1135 AM CHST WED JUL 9 2008 GUC110-120-090730- /O.NEW.PGUM.FA.Y.0002.080709T0127Z-080709T0730Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ 1135 AM CHST WED JUL 9 2008 THE NATIONAL WEATHER SERVICE IN TIYAN GUAM HAS ISSUED AN * URBAN AND SMALL STREAM FLOOD ADVISORY FOR... SAIPAN AND TINIAN INCLUDING THE CITIES OF...GARAPAN...CHALAN KANOA... KOBLERVILLE...SAN ANTONIO AND SUSUPE * UNTIL 530 PM CHST WEDNESDAY * AT 1127 AM CHST SAIPAN WEATHER OBSERVATIONS INDICATED THAT 0.56 INCHES OF RAIN HAS ALREADY FALLEN TODAY. MEANWHILE...PGUA WSR-88D SHOWS SUBSTANTIAL ADDITIONAL RAINFALL APPROACHING. IF TOTAL RAINFALL IS ENOUGH TO TEMPORARILY OVERWHELM DRAINAGE SYSTEMS... THE PROBLEMS WILL LIKELY PERSIST FOR SEVERAL HOURS AFTER THE RAIN STOPS. THEREFORE THIS ADVISORY IS ISSUED FOR 6 HOURS...AND MAY BE RE-ISSUED IF IT IS STILL RAINING AT THAT TIME. A FLOOD ADVISORY MEANS EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE ELEVATED RIVER OR STREAM FLOWS...PONDING OF WATER IN URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER POOR DRAINAGE AREAS AND LOW LYING SPOTS. IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO TRAVEL ACROSS FLOODED ROADS. FIND ALTERNATE ROUTES. IT TAKES ONLY A FEW INCHES OF SWIFTLY FLOWING WATER TO CARRY VEHICLES AWAY. LAT...LON 1504 14587 1504 14577 1489 14573 1472 14550 1508 14549 1535 14570 1535 14583 1531 14587 $$ STANKOIssuing Weather Forecast Office Homepage
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