/ Storm field report · Hillsborough

Hail in Riverview · May 20, 2026

The estimated-size surface reached 0.75" aloft; NEXRAD logged no point detections over Riverview that day. Open it on the live map to see the swath over the streets.

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Peak hail signal 0.75" ≈ penny to nickel · radar-estimated size aloft
Homes in the hail footprint 9,315
Ground reports 0 none filed
Radar surfaces 1 Estimated size only

Convective day · May 20, 2026 · noon–noon UTC

Severity

The most severe storm Riverview has seen in the last 12 months

Composite score · 3.1 / 10
Storm severity score

Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.

3.1 /10
Peak hail signal
19 /100

Largest radar-indicated size — a signal of damage potential, not confirmation.

Homes exposed
79 /100

How many homes sit inside the storm's footprint.

Ground truth
0 /100

Independent storm reports filed with the NWS.

Evidence / storm surfaces

How Riverview saw the hail — from two instruments

May 20, 2026 · Riverview, FL

We map this storm two ways: the NEXRAD radar signatures the storm produced overhead, and the radar-estimated size of the hail in the air. The two surfaces don’t have to match — where they diverge is where estimated size aloft ran ahead of, or behind, what the signatures caught.

Radar-estimated hail size Surface resolved
Radar-estimated hail-size map of the storm over Riverview, FL on May 20, 2026 Estimated size field

Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.

Max size 0.75"

Only the radar-estimated size surface resolved for May 20, 2026 — this storm produced no NEXRAD point detections over Riverview, so there is one map to show, not two.

The storm in context

Where May 20, 2026 sits in Riverview's hail record.

This was Riverview's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 1st of the 4 storms we have logged here. Radar put the day's largest stone over Riverview at 0.75" — radar-estimated size aloft.

The May 20, 2026 convective day was bigger than Riverview: the same system put hail over 109 other tracked cities, 8 of them in Florida. Nearest: Wimauma (7 miles south, up to 0.75"); Parrish (15 miles southwest, up to 0.75"); Plant City (18 miles northeast, up to 0.5").

These maps are stills. In the app this date is one of 4 Riverview storm dates on a live map — both surfaces, the reports, and a replay — and the same map is where you draw the swath. This page rebuilds nightly.

Ground reports

What people on the ground reported

No reports filed with the NWS

These are storm reports filed with the National Weather Service and released through the NOAA Storm Prediction Center — public-domain observations from spotters, the public, and NWS surveys. We quote each one exactly as filed.

For this storm over Riverview, the NWS report log is empty — a common outcome, since ground reports only happen when someone witnesses the hail and takes the time to call it in. The detection record for the date lives in the radar maps above.

Near the severe threshold

What 0.75" hail means for Riverview roofs.

A signal this size sits near the National Weather Service severe threshold. Aging shingles and soft metals such as vents, flashing, and gutters may be more vulnerable; roof age, wind, and material condition all matter, and only an inspection can confirm damage.

Radar reading · not confirmed damage

Roofing exposure

What this storm is worth to a roofer.

9,315 homes × $12,000 avg. claim

Potential roof exposure

$112M

Potential roof exposure — 9,315 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.

Illustrative jobs
47 jobs
Illustrative work
~$705K

Close just 0.5% of the 9,315 homes in this footprint at the average $15,000 roof job. Illustrative math, not a projection — your results depend on your outreach and how the market responds.

Claim window

May 2028

Claims from this storm can typically be filed until around May 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.

Names and phones for every home in the footprint: at most $1,956 on top of the $150 plan.

Riverview hail history

4 recorded storm days in Riverview, FL

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A storm day here is a convective day — it runs from noon to noon UTC, so late-night hail is grouped with the afternoon storm that spawned it rather than split across two calendar dates. Ground reports are public-domain observations from the NOAA Storm Prediction Center. Radar tells you where to look. Only an inspection confirms damage at an address. Last updated Aug 3, 2026.