NWS: Thunderstorms & Warm Temps Trough the Memorial Day Weekend

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KEY POINTS
  • Friday and Saturday afternoon & evening will see scattered showers and thunderstorms, especially across the Cascades, northern Washington and the Idaho Panhandle
  • Thunderstorms will be slow moving, producing heavy rain in a short amount of time, lightning, gusty winds and small hail.
  • Warm temperatures through the weekend, warmest day Monday.
WEATHER RISK OUTLOOK
Risk levels incorporate potential impacts from weather hazards and likelihood of occurrence.
Fri 5/26 Sat 5/27 Sun 5/28 Mon 5/29
Thunderstorms Thunderstorms Thunderstorms
Risk Levels Little to None Minor Moderate Major Extreme
DETAILS
Cascades, Eastern Washington and North Idaho
Thunderstorms
Thunderstorms
Impacts:
Brief heavy downpours, lightning, gusty winds, small hail
Moderate to heavy rainfall could lead to minor nuisance flooding
Timing:
Friday and Saturday
Confidence:
Moderate
20-50% chance of thunderstorms. Best area potential is the periphery of the Columbia Basin into the mountains.
Northeast Washington, Idaho Panhandle.
Thunderstorms
Thunderstorms
Impacts:
Lightning, gusty winds, small hail
Timing:
Sunday
Confidence:
Low to moderate
20-30% chance of thunderstorms.
Region Wide
Heat
Heat
Impacts:
Increased risk to children and pets left unattended in hot vehicles or outdoors.
Dehydration, hyperthermia, and heat cramps could impact those who do not take precautions.
Hypothermia hazard in cold water as people try to escape the warmth. Rivers and lakes are still running cold.
Timing:
Through the holiday weekend
Confidence:
High
Temperatures will be 6 to 12 degrees above average. Monday will be the warmest day, topping out in the 80s for the majority of the populated valley locations.
Water temperatures are in the upper 40s and 50s.
FOR MORE INFORMATION
For the latest forecast updates, visit weather.gov/spokane.