Yes, hail-bearing cells were detected near Dana Point on September 10, 2021. The largest stone measured about 1 inch, which can cause bruising to asphalt shingles, potentially leading to roof damage.
What was detected near Dana Point on September 10, 2021?
On September 10, 2021, NEXRAD radar detected hail-bearing cells within 10 miles of Dana Point. This detection confirms that storms capable of producing hail were present in the vicinity. According to NOAA's Severe Weather Data Inventory, the largest hailstone recorded in this detection was sized at about 1 inch.
The nearest storm cell was located approximately 8.2 miles from the center of Dana Point. While the radar indicates the presence of hail aloft, it does not provide conclusive evidence of hail accumulation on specific streets or properties.
What does a 1-inch hailstone do to a roof?
Hailstones around an inch in size can start to cause damage to asphalt shingles. Specifically, they can lead to bruising where the mat fractures beneath the granules. This type of damage may not be immediately visible from the ground, meaning homeowners might be unaware of any issues unless a professional inspection is conducted.
Such damage can compromise the integrity of the shingles over time, potentially leading to leaks or more significant issues down the line. Understanding the impact of hail size is crucial for assessing roof health after a storm.
Why is radar detection different from ground impact?
Radar detection signifies that a storm cell was carrying hail aloft, but it does not measure what actually landed on the ground. This distinction is important when evaluating potential roof damage. While the radar logged two hail cells that day, homeowners should not assume that hail of that size fell directly on their property.
The presence of hail-bearing cells within a certain radius does not guarantee that any hail impacted roofs in Dana Point. Homeowners are encouraged to consider both the radar data and any visible signs of damage when deciding whether to have their roof inspected.
What should homeowners do after hail detection?
After a hail event, particularly one detected by radar, homeowners should assess their roofs for any visible signs of damage. This includes checking for missing shingles, granule loss, or any cracks that might have developed. Although 1-inch hail can cause bruising, it may not always be obvious without a thorough inspection.
In addition to visual inspections, it is advisable to consult with a roofing professional who can evaluate the roof’s condition more accurately. According to the storm record for Dana Point, understanding the potential impact of past weather events helps homeowners make informed decisions about roof maintenance and repairs.