818
FNMY50 PGUM 191740
FWFGUM

Fire Weather Planning Forecast for Guam
National Weather Service Tiyan GU
340 AM ChST Sun Apr 20 2025

.Discussion...
No fell at the Guam International Airport yesterday. This allowed the
KBDI to increase slightly with today`s reading at 648, which is in
the high category. Gentle to moderate trade winds are expected for
today as generally dry conditions continue, maintaining an elevated
fire threat. Critical Red Flag conditions are not expected to be met
over the next several days with trade winds decreasing through the
weekend, although afternoon relative humidity values will continue to
fall near 60 percent. Trade winds have become mostly gentle today,
with little change expected in the dry pattern.

GUZ001-201745-
Guam-
340 AM ChST Sun Apr 20 2025

                      Today        Tonight      Mon

Cloud Cover           Pcldy        Mcldy        Pcldy
Precip Type           Showers      Showers      Showers
Chance Rain (%)       20           30           10
Temp                  88           76           88
RH %                  65           99           67
20FtWnd-Val/AM(mph)   E 10 G18                  E  8
20FtWnd-Rdg/PM(mph)   E 10 G18     E  8         E  9
Mixing Hgt(ft-msl)    6351         110          6119
Transport Wnd (mph)   E 14         E  3         E 10

$$


.Forecast for Days 3 Through 7...

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


$$