The National Weather Service office in Melbourne, Florida issued a Flood Warning at 9:28 AM EDT on September 29 covering nine areas across the country. A Flood Warning means flooding is either already happening or imminent — this is a step above a Flood Watch, which only means conditions are favorable.
The areas currently covered include: Lake and Volusia counties in Florida; Maricopa County in Arizona; San Miguel County in New Mexico; Bristol and Plymouth counties in Massachusetts; Clinton and Scott counties in Iowa; and Lake County in Illinois.
What readers in these areas might notice
Depending on your location, expect standing water on roads, closed or water-covered low-lying streets and underpasses, swollen creeks and small streams, and possible water in basements or ground floors. In the Southwest (Maricopa and San Miguel counties), the main risk is flash flooding in normally dry washes and arroyos, which can fill within minutes of heavy rain upstream.
What to do
Never drive or walk through floodwater — just six inches of moving water can knock an adult down, and a foot can float a vehicle. If you live in a flood-prone spot, move valuables and electronics off the floor, keep your phone charged, and know your quickest route to higher ground. Check local county emergency management updates for any road closures or evacuation notices.
Data source: U.S. National Weather Service (NWS), alert issued by NWS Melbourne, FL.
Frequently Asked Questions
What should I do right now if I'm in one of these areas?
Avoid driving through any water-covered road and stay away from fast-moving streams and washes. Keep your phone charged and monitor local NWS updates in case the warning is upgraded or an evacuation is ordered.
How long will the flood warning last?
Flood warnings typically remain in effect until water levels recede below flood stage, which can take anywhere from a few hours to several days depending on rainfall and river response. Check your local NWS office for the specific expiration time for your county.
Is it safe to drive if the water looks shallow?
No — depth is hard to judge from a vehicle, and the road underneath may be washed out. Turn around and find another route; most flood deaths in the U.S. occur in vehicles.
Why are areas in Arizona and New Mexico included with Florida and the Midwest?
This is a single consolidated warning listing multiple separate flood events across the country. The Southwest areas face flash-flood risk from heavy rain, while the Florida, Iowa, Illinois, and Massachusetts areas are dealing with their own local rainfall and river flooding.
Keep tracking this:
Source: National Weather Service (NWS)
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Sky & Solar Conditions at the Time
Moon: Waning Gibbous (93% illuminated), in Taurus.
Notable planetary angles: Moon opposite Venus (179°), Mercury square Mars (88°).
Concurrent space weather: planetary Kp index 1.3; strongest recent solar flare: nothing notable.
This is a factual snapshot, not a claim of cause and effect – researchers are divided on whether lunar, planetary or solar factors influence seismic or weather activity. It’s included so readers can track the pattern for themselves over time.
