rain about to break for slightly lower humidity


The threat of street flooding and poor drainage will end Tuesday evening as a weak cold front continues to creep south through the viewing area. This front will not bring any major changes, although drier afternoons and slightly less humid mornings are expected on Wednesday and Thursday.

Next 24 hours: Persistent showers and thunderstorms will slowly end from north to south until evening. The speed camera may not be empty until midnight. Some compensation is expected by dawn as lows dip to the low in the mid-1970s. A light northeast breeze will bring some drier air, by August standards, Wednesday afternoon. The result of this change will be less showers and thunderstorms. Really, anything that can grow should be confined to the coast. No break from the heat – the highs will reach 90 degrees.

Next: We always use dew points as a better indicator of humidity than relative humidity because the latter is, well, relative. The dew points here stay in the 70s for much of the summer, so when they drop we feel drier air. This will happen from Wednesday evening to Friday morning. Some areas north of the freeways can even dip into the upper 60s at night! However, it is still August, so despite a drier and mostly sunny afternoon, Thursday afternoon it will still remain at 90 degrees. The next high altitude disturbance will pass with more showers and thunderstorms on Friday and Saturday as humidity slowly rises again. CLICK HERE for your full 7 day forecast.

The Tropics: A small area of ​​low pressure about 100 miles south of Praia in the Cabo Verde Islands has only a 10 percent chance of developing before moving north over cooler waters. Another tropical wave is expected to move off the west coast of Africa by Thursday evening. This system has a 20 percent chance of developing over the far eastern Atlantic over the weekend as it moves west. The Climate Prediction Center also highlights an area west of the National Hurricane Center’s 5-day forecast that could be preferred for tropical development during the second week of August. These particular waves are weeks away from being of concern to the United States. However, now is the time of year when we need to start monitoring the deep tropics. For the latest tropical forecast and information, visit the WBRZ Hurricane Center as we navigate the 183-day hurricane season.

The explanation: An upper level trough currently encompasses the eastern half of the country with an associated facade remnant draped across the local area. During the night, the front will subside towards the south and continue a slow decrease between the Louisiana coast and the I-10. Dew points will decrease a bit as the front passes, which could allow low temperatures to drop a few degrees below average from Wednesday to Friday morning. Readings will range from the mid-1970s along the coast to the upper 1960s in southwestern Mississippi. With the front virtually dissipated and the associated elevation trough receding northeastward, Wednesday through early Friday should be fairly calm. What remains of the front Wednesday could endure isolated showers and thunderstorms near the coast, but interior sections are expected to remain mostly dry due to lower atmospheric humidity. A second, smaller and faster elevation trough will cross the southern third of the country towards the end of the week. As the axis of this trough passes through our region, there will be a 24 hour period from late Friday to Saturday afternoon where increased showers and thunderstorms are expected. Sunday through early next week, the more typical summer weather will return with near-average and isolated highs and lows, afternoon showers and thunderstorms.


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