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The upper level trough has moved south and east and is now further away from Belize. Belize remains dry with most of the active weather down in the Panama area. The polar circulation has change very little over the past 4 days, The CW rotation is at 77.3 N / 105.4 W and the the CCW near Siberia at 64.0 N / 73.9 E.

There has been an increase in the moisture in the Caribbean. An upper air trough of Lower Pressure is forming as shown in the lower left image. An increase in convection is expected over the next few days. The Sahara air off Africa is weakening.
Polar Circulation update: The CW High Pressure is dominating again and has rotated back again towards the North Pole. Now centered at 75.8 N / 100.8 W. A strong active cold front is pushing down from Canada. Severe weather warnings issued.

The total rainfall from last report weather system due to cold front was 70 mm which is quite a lot of rain for this time in the dry season. Now Belize is back in the dry again as seen in the water vapour image. Meanwhile there has been a big change in the polar circulation. The CW loop has become much weaker and moved off to the north and west while the larger CCW loop and now got a double centre and has expanded. This looks like there will be colder than normal temperature for Canada over the coming week.

Around 1340 hr a large area of rain showers passed through the central part of Belize. Belmopan experienced a fairly heavy rain shower along with gusty winds. There was about 9 mm in 15 minutes. The tail end of the cold front must be stirring up some active weather.

The lower circle is the CW rotation which is continuing to dominate while the old CCW over in Siberia continues to struggle.
The cold front crossed Belize Friday night and stalled east of Honduras. The front is now beginning to dissipate. Since Friday night, here in Belmopan I measure about 52 mm of rain which is pretty significant for this time of year. We don't normally get such a strong cold front this late in March.

A strong Cold Front is approaching the Yucatan. This may bring some significant rainfall to Belize. To soon to determine how much rain.
The CW polar circulation continues to strengthen. Now cemtred at 67.8 N / 117.8 W
Eastern Canada is still unseasonably cold.

The polar circulation is definitely beginning to make a big change. The change seems to be in step with the spring equinox. The winter time CCW pattern is fading away while the summer time CW pattern is beginning to dominate.
The Caribbean continues to be very dry, there is no sing of rain anywhere at this time.

There has been little change in the Caribbean with respect to the low level of water vapour.
However, there is a big change occurring in the polar circulation. The larger CCW rotation is still close to Siberia, while the CW rotation near Alaska is becoming significantly larger. Only the eastern part of Canada is experiencing cold weather.

High cloud from the Pacific side is flowing northward across Belize. Low level cloud is moving in from the Gulf of Honduras across southern Belize but no rain due to the upper air being very dry.
The polar circulation has moved further into Siberia, now centred at 72.2 N / 100.2 E. This is putting the jet stream further north now, more over the Great Lakes and New England. The southern states is now much warmer.