Heavy Rain, Severe Weather Update: May 7, 2025

Here is an update concerning the heavy rain and severe weather threats through Friday.

Changes From Previous Update:

  • The threat of heavy rainfall from late this afternoon through tonight has decreased
  • The threat of heavy rainfall has increased on Friday and *may* require the flood watch to be extended in some areas

Overview:

WHAT: 

MODERATE RISK of heavy rain leading to flash flooding

SLIGHT RISK of Severe Weather

WHEN:
For the heavy rain and flash flood threat, the greatest threat will be through this afternoon, but a slight risk will continue through at least Friday

For the severe weather threat, both today and Thursday

Note: There will likely be lulls in shower and thunderstorm activity (with the first lull potentially occurring from late this afternoon through tonight). However, there is low confidence in the specific timing of these lulls.

WHERE: 

For the heavy rain threat, area wide with the greatest threat mainly along and south of the Interstate 10/12 corridor

For the severe weather threat, area wide

Potential Impacts:

  • Heavy rain is the greatest threat associated with this storm system. 
  • Additional rainfall of 3 to 6 inches is forecast through Friday for areas along and south of the Interstate 10/12 corridor with lower amounts in northern areas
  • Locally higher amounts are likely, and a reasonable worst case forecast (10% chance) indicates local storm totals nearing or exceeding 10″ 
  • Street flooding is likely along with areas of flash flooding which could affect locations that do not normally experience flooding
  • As the heavy rain drains into area rivers, water levels will rise and several locations are currently forecast to experience minor flooding
  • While the threat of severe weather is generally low (level 1 of 5), if any severe storms develop, they would be capable of producing damaging wind gusts, large hail, and/or a couple tornadoes