Wednesday,
August 20, 2025
KWAJALEIN FORECAST
DISCUSSION
Relatively dry and
stable atmospheric conditions across the atoll will maintain a quiet weather
pattern through the afternoon. The subtropical ridge remains dominant over the
local area, and the Intertropical Convergence Zone (ITCZ) is still in a fairly weak
and disorganized state. Surface winds will vary from east-northeasterly to
easterly today with moderate speeds in the low to middle teens. Quiet
conditions will likely persist through the evening hours, but late tonight, a
weak trade wind trough may clip the atoll, causing a slight boost to shower
activity. Trough passage may cause winds to shift more easterly to
east-southeasterly late tonight. Cool mid-level temperatures may support a
stray lightning strike or two overnight as well. Shower chances may peak
tomorrow morning, but activity should begin to die down not long after sunrise,
then minimize by the afternoon as the trough exits the area. Weakening of the
subtropical ridge will cause a loosening of the pressure gradient tomorrow,
which will drop winds into the single digits for the next couple of days. The
ITCZ may also creep closer to the central RMI during this period, potentially
sending a couple of shallow atmospheric waves through Kwajalein Atoll to
trigger temporary (but slight) boosts in shower chances through the end of the
workweek. A more active and wet weather pattern could potentially follow over
the weekend if the ITCZ continues its trend towards reorganization. Shower
coverage will be <10% this afternoon and this evening, increasing to 10-15%
late tonight. Combined seas on the open ocean will be 2-4 feet. HWH
TROPICAL CYCLONE ACTIVITY IN
THE USAG-KA WATCH AREA
None.
WARNINGS AND ADVISORIES
None.
TODAY
Wednesday,
August 20, 2025
Weather Forecast
Mostly
sunny with stray showers.
87°F
Winds
ENE-ESE
at 10-15 knots with higher gusts possible near showers.
Sea Conditions Forecast
Open Ocean
2-4
ft
Lagoon
1-2
ft
TONIGHT
Wednesday,
August 20, 2025
Weather Forecast
Partly
cloudy with stray showers in the evening, increasing to isolated showers and
stray thunderstorms late tonight.
79°F
Winds
ENE-ESE
at 10-15 knots with higher gusts possible near showers.
Sea Conditions Forecast
Open Ocean
2-4
ft
Lagoon
1-2
ft
TIDES
High
of 2.7 ft at 3:03 PM
Low
of 0.5 ft at 8:42 PM
High
of 4.0 ft at 3:07 AM
Low of
-0.2 ft at 9:40 AM
ALMANAC
Temperatures
Yesterday’s
high: 88°F
Normal high:
86°F
Yesterday’s low:
80°F
Normal low: 78°F
Rainfall
Yesterday: 0.00”
August total:
2.66”
August
deviation: -3.71”
Yearly total:
34.13”
Yearly
deviation: -13.64”
Sun
Sunset:
7:04 PM
Sunrise:
6:41 AM
Moon
Moonset:
4:38 PM
Moonrise:
4:32 AM