Bermuda Weather Service Forecast Discussion
For Sunday, October 11, 2026
19:00 UTC
FORECASTER - Kimberley Zuill
NOWCAST: This Evening through Tonight
This morning, RADAR tracked a thin line of light showers making
its way from the NE over us and slowly transitioning beyond our marine
area to our SW. Moderate near E winds rose slightly over the airfield
and the AWOS sensors in Dockyard indicated persistent winds near
20 knots while cloud layers hung at SCT030 with cirrus blowing overhead.
As broad high pressure continues to pass to our distant north, then
shifts out towards our NE, local winds will respond tonight by gradually
veering to the SSE or S. Seas build into the marginal moderate category
tonight.
WARNINGS: A small craft warning is in effect for this evening.
AVIATION: VFR conditions RWY12 wind 090 degrees 14-16kts veer 200
degrees by end of TAF with showers moving into the vicinity Monday
afternoon. No other hazards expected. For current airfield information
please visit: http://www.weather.bm/Aviation
SHORT TERM FORECAST: Monday through Tuesday
Upper ridging topples over the area into the new week, with upper
troughing then approaching from the W later on Monday with a well-defined
trough axis passing overhead during Tuesday morning. The deepening
low pressure area to our distant NW drags a cold front towards the
area with a passage expected during Tuesday. In advance, however,
convergence is established that may create clusters of showers during
Monday afternoon /evening. On the surface, warmer and more humid
air encroaches from the SW in advance of the front (weak WAA) and
this is likely to contribute to some pre-frontal shower development,
especially later on. Instability indices rise and although the mention
of thunder has yet to be included in the detailed forecasts, this
will need to be considered nearer the time. Tuesday is likely to
start off damp and cloudy with the passage of the front, but it should
soon brighten up and become mostly dry, however QPFs are mostly minimal
although the latest UK suggests almost 0.5”. Moderate SSW winds increase
to become strong SW’erlies for Monday evening/night, ahead of the
front, then ease to become moderate from the WNW in the wake of the
front. Seas build further into the moderate range up to around 6ft
or so by the end of the period.
WARNINGS: Small craft warning has been issued for late Monday evening
into the start of Tuesday.
LONG TERM FORECAST: Wednesday through Thursday
The long range sees upper troughing continuing to overspread the
Island with the second defined trough axis likely passing Wednesday
evening. Although there will be brightening skies during the long
range, the odd shower cannot be ruled out given some weak instability
in the boundary layer. Cooler temperatures blow in on those near
north winds, which will fluctuate either side of N as ridging becomes
a majority influencer. Moderate seas diminish slight to moderate
later in the period.
WARNINGS: Small craft warning is currently in effect “to” Tuesday
morning – wording used to say that the winds are still expected to
increase during the early to midmorning.
TROPICAL UPDATE
Please see https://www.nhc.noaa.gov/gtwo.php?basin=atlc&fdays=7
for the latest outlook from the NHC.