Monsoonal flow coinciding with a frontal boundary will focus more showers and thunderstorms across the central Great Basin, central Rockies, Southwest into the Southern Plains. Heavy rainfall may bring about instances of flash flooding. Meanwhile, record setting heat continues for the Pacific Northwest through Monday. Heat combining with dry conditions could allow for any fires to quickly spread. Read More >
Biggest takeaway:
This is a routine occurrence/hazard that needs a plan - otherwise, you are putting your people's lives at risk. When Thunder Roars - Go Indoors (or into your vehicle). Nearly all lightning deaths occur outside - from people disregarding their risk, or thinking they have a few minutes more. The most deadly strikes are often the first few before the rain begins.
Warning/Trigger for Plan:
There is no NWS warning for lightning threat, but nature has its own warning - thunder.
Advance Notice/Time to Activate & Accomplish Your Planned Response:
Typically 5-30 minutes
Frequency: ~ 20 times/year at various time of day & night