810
FNMY50 PGUM 070548
FWFGUM

Fire Weather Planning Forecast for Guam
National Weather Service Tiyan GU
348 PM ChST Wed May 7 2025

...RED FLAG WARNING IN EFFECT UNTIL 4 PM CHST FRIDAY...

.Discussion...
The KBDI remains at 718, which is in the extreme category due to
elevated daytime winds. The winds will 10 to 15 mph with
occasional gusts of 25 mph for lower elevation locations, while in
higher elevations winds are expected to be 15 to 20 mph with gusts
up to 30 mph in the afternoon. The fire danger is expected to
become critical during the daytime hours, with afternoon relative
humidities expected to drop below 60 percent and elevated winds,
especially in higher terrain. Just 0.05 inches of rain fell at the
Guam International Airport so far today and a wetting rain is not
expected for at least the next several days, and the KBDI is
expected to continue to rise.

GUZ001-072100-
Guam-
348 PM ChST Wed May 7 2025

...RED FLAG WARNING IN EFFECT UNTIL 4 PM CHST FRIDAY...

                      Tonight      Thu          Thu Night    Fri

Cloud Cover           Pcldy        Pcldy        Pcldy        Pcldy
Precip Type           Showers      Showers      Showers      Showers
Chance Rain (%)       20           20           20           10
Temp                  76           89           76           89
RH %                  99           55           98           55
20FtWnd-Val/AM(mph)                E 10 G20                  E 10 G19
20FtWnd-Rdg/PM(mph)   E  9 G18     E 15 G30     E 10 G18     E 15 G30
Mixing Hgt(ft-msl)    109          5550         109          5604
Transport Wnd (mph)   E 18         E 20         E 18         E 20

$$


.Forecast for Days 3 Through 7...

.FRIDAY NIGHT...Mostly cloudy with isolated showers. Lows in the
upper 70s. East winds up to 20 mph.
.SATURDAY...Mostly sunny with isolated showers. Highs in the
upper 80s. East winds up to 20 mph increasing to 10 to 20 mph in
the afternoon.
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 70s. East
winds 10 to 20 mph.
.SUNDAY...Mostly sunny. Highs in the upper 80s. East winds 5 to
10 mph.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 70s. East winds
5 to 10 mph.
.MONDAY...Mostly sunny with a slight chance of showers. Highs in
the upper 80s. East winds 10 to 15 mph.
.MONDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the lower 80s. East winds 10 to 15 mph.
.TUESDAY...Mostly sunny with a slight chance of showers. Highs in
the mid 80s. East winds 10 to 15 mph.
.TUESDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the lower 80s. East winds 10 to 15 mph.
.WEDNESDAY...Mostly sunny with a slight chance of showers. Highs
in the mid 80s. East winds 10 to 15 mph.


$$