Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Tiyan, Guam

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FNMY50 PGUM 031819
FWFGUM

Fire Weather Planning Forecast for Guam
National Weather Service Tiyan GU
419 AM ChST Thu Dec 4 2025

.Discussion...
A trace of rain fell yesterday at Guam International Airport,
which allowed the KBDI to risk to 296, which is still in the low
category. Besides for a weak trough passing near Guam tonight and
Friday, a drier weather pattern is expected to develop across the
region over the next several days and should allow the fire danger
to climb into the moderate category as the KBDI climbs above 299.
Antecedent moisture will continue to keep a lid on fire activity for
the next few weeks at least. Nevertheless, caution is still
recommended for any outdoor burning during periods when fresh to
strong trade winds are present.

GUZ001-041830-
Guam-
419 AM ChST Thu Dec 4 2025

                      Today        Tonight      Fri

Cloud Cover           Pcldy        Mcldy        Mcldy
Precip Type           Showers      Tstms        Tstms
Chance Rain (%)       20           30           30
Temp                  86           79           85
RH %                  71           94           77
20FtWnd-Val/AM(mph)   E 10                      E  9
20FtWnd-Rdg/PM(mph)   E 10         E  9         SE 10
Mixing Hgt(ft-msl)    338          1            230
Transport Wnd (mph)   SE  3        N  0         SE  1

$$


.Forecast for Days 3 Through 7...

.FRIDAY NIGHT...Partly cloudy with isolated showers. Lows in the
upper 70s. Southeast winds 5 to 10 mph.
.SATURDAY...Mostly sunny with isolated showers. Highs in the
upper 80s. East winds 5 to 10 mph.
.SATURDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the upper 70s. East winds 5 to 10 mph.
.SUNDAY...Mostly sunny. Highs in the upper 80s. East winds around
10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the upper 70s. East winds 5 to 10 mph.
.MONDAY...Mostly sunny. Highs in the upper 80s. East winds 5 to
10 mph.
.MONDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the upper 70s. East winds 5 to 10 mph.
.TUESDAY...Mostly sunny. Highs in the upper 80s. East winds 5 to
10 mph.
.TUESDAY NIGHT...Partly cloudy. Lows in the upper 70s. East winds
5 to 10 mph.
.WEDNESDAY...Mostly sunny. Highs in the upper 80s. East winds
5 to 15 mph.


$$