Which weather term is associated with a K index of 35 in this forecast?

Which weather term is associated with a K index of 35 in this forecast?

• A. 60% chance of thunderstorms
• B. 30% chance of rain
• C. No risk of weather
• D. 0% chance of thunderstorms

Answer: (A)

A K index measures the potential for thunderstorm convection; the higher the value, the greater the likelihood of thunderstorm activity. A K index of 35 indicates strong instability and moisture available for convection, so forecast guidance typically describes this as about a 60% chance of thunderstorms. That’s why the associated weather term is a 60% probability of thunderstorms. The other options describe far lower risk levels (no rain or no weather risk, or only a small chance of rain) and don’t fit a high K index value. In practice, a 60% chance of thunderstorms means significant thunderstorm potential, so plan accordingly for safety and possible flight restrictions.

A K index measures the potential for thunderstorm convection; the higher the value, the greater the likelihood of thunderstorm activity. A K index of 35 indicates strong instability and moisture available for convection, so forecast guidance typically describes this as about a 60% chance of thunderstorms. That’s why the associated weather term is a 60% probability of thunderstorms. The other options describe far lower risk levels (no rain or no weather risk, or only a small chance of rain) and don’t fit a high K index value. In practice, a 60% chance of thunderstorms means significant thunderstorm potential, so plan accordingly for safety and possible flight restrictions.