The weather forecast "Increasing cloudiness and warm today, with the possibility of showers by evening. Turning much colder tonight. Winds southwesterly, becoming gusty and shifting to northwesterly by tonight." suggests that a(n) front is going to pass the area.

Cold front

Explanation:

A cool front is a leading edge of a cooler mass of air are a thick are heavy gusty winds that replaced by a ground level by a warmer air mass having a low pressure are found over the dry and cold interior of the continents and shift in this air mass causes thunderstorms and cloud formation. The cold clouds are highly unstable are cumulonimbus type can bring narrow bands of rainfall having a temperature of 30° C, are associated with colder nights. The winds are usually SW to SE in the northern hemisphere and are NW to NE in the southern hemisphere.

East european plain and russian russkaya ravina.

So  if  the sum of the enthalpies of the reactants is greater than the products, the  reaction  will be  exothermic.  if  the products side has a larger enthalpy, the  reaction  is  endothermic. you may wonder why  endothermic reactions, which soak up energy or enthalpy from the environment, even happen