Examples:

• There were heated discussions in the meeting today; a storm is brewing.
• The employees' discontent with the management suggests a storm is brewing.
• She could tell by his tone that a storm was brewing.
• With all the rumors spreading, it feels like a storm is brewing in the office.
• The sudden drop in sales figures indicates a financial storm is brewing.
• The tension between the two departments suggests a storm is brewing.
• After the controversial decision, everyone sensed a storm was brewing.
• The political situation is tense, and a storm is brewing.
• The look on his face made it clear that a storm was brewing.
• The escalating arguments between the neighbors show that a storm is brewing.
• The uneasy silence at the dinner table indicated a storm was brewing.
• The recent layoffs have left employees feeling anxious, as if a storm is brewing.
• The news headlines suggest a storm is brewing in international relations.
• The disagreements in the board meeting imply that a storm is brewing.
• The protests on the streets are a sign that a storm is brewing.