Phoenix Area Braces for Flash Floods: What You Need to Know
A flash flood warning was issued for the Phoenix area on Wednesday, Sept. 3rd, by the National Weather Service (NWS) at 3:49 p.m. MST. The warning encompassed both Gila and Maricopa counties, urging residents to exercise extreme caution. While a flood watch for the area on Sept. 4th was later cancelled, the initial warning highlights the potential dangers of sudden and intense rainfall.
The NWS emphasized the critical safety message: "Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles." This stark reminder underscores the unpredictable nature of flash floods and the importance of avoiding flooded areas. Campers and hikers were also advised to stay away from streams and creeks, which can quickly become hazardous during heavy rains.
What is a Flash Flood?
According to the NWS, a flash flood is a rapid and intense flooding event caused by heavy or excessive rainfall within a short period, typically less than six hours. These floods are characterized by powerful surges of water and can develop in mere minutes, even in areas not directly experiencing rainfall.
Key Safety Tips During Flash Floods:
- Never drive into flooded roadways. The depth of the water can be deceiving, and your vehicle could be swept away.
- Avoid low-lying washes and underpasses. These areas are particularly prone to flooding.
- Stay updated on alerts from the National Weather Service. Monitor weather forecasts and warnings closely.
- Watch for rapid rises in creeks, streams, and normally dry washes. Be aware of your surroundings and potential flood hazards.
Dust Storm Safety: An Additional Concern
Given the arid climate of Arizona, dust storms can also pose a threat to drivers. Here are some safety tips to keep in mind:
- If driving on the freeway, exit if possible.
- Check traffic around your vehicle and begin slowing down.
- Pull off the roadway as far as possible.
- Turn off all vehicle lights, including emergency flashers.
- Set the emergency brake and take your foot off the brake pedal.
- Stay in your vehicle with your seatbelt fastened and wait for the storm to pass.
While the flood watch was cancelled, it's always wise to be prepared and stay informed about potential weather hazards. The forecast for the following days indicated a continued chance of thunderstorms, emphasizing the importance of vigilance.