Thursday, March 15, 2018

March 15, 2018

Temperature: 31°F
Dew Point: 18°F
Wind: N 10 mph
Clouds: Clear

The jet stream predominantly remains to the south, however it is beginning its descent to the north. There is a ridge that is growing in side to the north over Canada. This should continue the stretch of warmer temperatures.

Figure 1. jet stream at 250 hPa (earth.nullschool.net).

Where the ridge of the jet stream overlies, there is a High pressure system (Canada). Towards the western half of the US there is a large Low pressure area. This also includes a cold front from the west and north and the stationary front in the middle of the two cold fronts.

Figure 2. National Forecast (NOAA). 

Temperatures to the North and west of the fronts are experiencing slighter cooler temperatures than yesterday (which was in the 40s for Eau Claire). South of the front still has the dry air that drives the warmer temperatures up as well.

Figure 3. US Temperatures (wunderground.com).

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