Hail Map — MRMS 24-Hour Max Hail Size Map

1 · Find the property

Verify the pin is on the correct property. If a street address is ambiguous, enter a lat/lon (e.g. 32.7767,-96.7970) for precise placement.

This product is a rolling 24-hour maximum. Choose a time after the storm ended — a storm at 22:00 UTC still shows up in the next morning's scans.

Date

Scan time

Area around property: ±0.50°

Ground-truth hail reports from the NWS, within 35 mi of your property.

Look back 24 h before the scan time

Pick an address and scan time, then press “Load hail data + reports”.

0.25–0.5 inPea to marble

0.5–0.75 inMarble to penny

0.75–1 inPenny to quarter

1–1.5 inQuarter to ping pong ball

1.5–2 inPing pong ball to hen egg

2–2.5 inHen egg to tennis ball

2.5–3 inTennis ball to teacup

3–4 inTeacup to grapefruit

4+ inSoftball and up

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