Preliminary radar record — NOAA MRMS

June 21, 2026 Weld County, CO Hailstorm

170 radar cells recorded between 11:00 PM MDT and 11:30 AM MDT. Peak radar-estimated hail size: 1.52".

Preliminary radar record. Built from NOAA MRMS radar (MESH), which updates within about 2 hours of a storm. Radar-estimated sizes carry roughly a ±0.25″ margin versus ground measurements. Ground-verified NOAA Storm Events records for this date typically publish within 60–90 days — this page upgrades to them automatically. Data current as of July 2, 2026.
Peak hail
1.52"
Radar cells
170
County
Weld
Severity
Significant
Storm record — cite this

On June 21, 2026, NOAA MRMS radar detected radar-estimated hail up to 1.52" in Weld County, Colorado — 170 radar cells between 11:00 PM MDT and 11:30 AM MDT. Source: NOAA Multi-Radar/Multi-Sensor (MRMS) MESH, via HailScore. Data current as of July 2, 2026.

Storm map

Each pin marks one MRMS radar cell with radar-estimated hail ≥1″. Larger pins = larger estimated hail.

Source: NOAA Multi-Radar/Multi-Sensor (MRMS) MESH. Coordinates are radar-grid cell centers — preliminary, not ground-verified.

Was your property in this storm's path?

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Cities in Weld County affected

See the full hail history for each affected area:

Hail size distribution

Under 1"
0

Cosmetic damage potential

1" – 1.5"
160

Damages asphalt shingles

1.5" – 2"
10

Severe roof damage

2"+
0

Total roof replacement

Individual radar cells (preliminary)

Radar-estimated MESH readings from NOAA MRMS. Official NOAA event IDs publish with the verified Storm Events records (typically 60–90 days).

Time (MT)Est. hail sizeLocationRecord
8:00 AM MDT1.523622"40.485, -104.765MRMS radar cell
9:30 AM MDT1.523622"40.485, -104.765MRMS radar cell
11:30 PM MDT1.523622"40.485, -104.765MRMS radar cell
5:00 AM MDT1.523622"40.485, -104.765MRMS radar cell
11:00 PM MDT1.523622"40.485, -104.765MRMS radar cell
3:30 AM MDT1.523622"40.485, -104.765MRMS radar cell
5:30 AM MDT1.523622"40.485, -104.765MRMS radar cell
7:30 AM MDT1.523622"40.485, -104.765MRMS radar cell
11:30 AM MDT1.523622"40.485, -104.765MRMS radar cell
1:30 AM MDT1.523622"40.485, -104.765MRMS radar cell
3:30 AM MDT1.3228346"40.485, -104.725MRMS radar cell
11:30 PM MDT1.3228346"40.485, -104.725MRMS radar cell
8:00 AM MDT1.3228346"40.485, -104.725MRMS radar cell
5:30 AM MDT1.3228346"40.485, -104.725MRMS radar cell
9:30 AM MDT1.3228346"40.485, -104.725MRMS radar cell
11:30 AM MDT1.3228346"40.485, -104.725MRMS radar cell
7:30 AM MDT1.3228346"40.485, -104.725MRMS radar cell
1:30 AM MDT1.3228346"40.485, -104.725MRMS radar cell
11:00 PM MDT1.3228346"40.485, -104.725MRMS radar cell
5:00 AM MDT1.3228346"40.485, -104.725MRMS radar cell
5:30 AM MDT1.2637795"40.485, -104.705MRMS radar cell
11:00 PM MDT1.2637795"40.485, -104.705MRMS radar cell
11:30 AM MDT1.2637795"40.485, -104.705MRMS radar cell
9:30 AM MDT1.2637795"40.485, -104.705MRMS radar cell
11:30 PM MDT1.2637795"40.485, -104.705MRMS radar cell
8:00 AM MDT1.2637795"40.485, -104.705MRMS radar cell
1:30 AM MDT1.2637795"40.485, -104.705MRMS radar cell
7:30 AM MDT1.2637795"40.485, -104.705MRMS radar cell
3:30 AM MDT1.2637795"40.485, -104.705MRMS radar cell
5:00 AM MDT1.2637795"40.485, -104.705MRMS radar cell
11:30 AM MDT1.1692914"40.485, -104.715MRMS radar cell
8:00 AM MDT1.1692914"40.485, -104.715MRMS radar cell
8:00 AM MDT1.1692914"40.485, -104.735MRMS radar cell
9:30 AM MDT1.1692914"40.485, -104.735MRMS radar cell
9:30 AM MDT1.1692914"40.485, -104.715MRMS radar cell
1:30 AM MDT1.1692914"40.485, -104.735MRMS radar cell
1:30 AM MDT1.1692914"40.485, -104.715MRMS radar cell
7:30 AM MDT1.1692914"40.485, -104.715MRMS radar cell
7:30 AM MDT1.1692914"40.485, -104.735MRMS radar cell
11:30 AM MDT1.1692914"40.485, -104.735MRMS radar cell
11:00 PM MDT1.1692914"40.485, -104.715MRMS radar cell
5:30 AM MDT1.1692914"40.485, -104.715MRMS radar cell
11:00 PM MDT1.1692914"40.485, -104.735MRMS radar cell
3:30 AM MDT1.1692914"40.485, -104.735MRMS radar cell
5:00 AM MDT1.1692914"40.485, -104.735MRMS radar cell
3:30 AM MDT1.1692914"40.485, -104.715MRMS radar cell
5:00 AM MDT1.1692914"40.485, -104.715MRMS radar cell
11:30 PM MDT1.1692914"40.485, -104.735MRMS radar cell
11:30 PM MDT1.1692914"40.485, -104.715MRMS radar cell
5:30 AM MDT1.1692914"40.485, -104.735MRMS radar cell

Showing first 50 of 170 records.

Frequently asked questions

What is the largest hail recorded on June 21, 2026 in Weld County so far?+

NOAA's MRMS radar network detected radar-estimated hail up to 1.52" in Weld County, Colorado on June 21, 2026. This is a preliminary, radar-estimated figure (MESH — Maximum Estimated Size of Hail), not a ground-verified measurement. Ground-verified NOAA Storm Events records for this date typically publish within 60-90 days, and this page upgrades to them automatically.

Is this storm record final?+

No — this is a preliminary radar record, current as of July 2, 2026. It is built from NOAA MRMS radar data, which updates continuously (typically within about 2 hours of a storm). The verified NOAA Storm Events Database entry for this date, with ground-truthed observations and official event IDs, usually publishes 60-90 days after the storm. Radar-estimated sizes carry roughly a ±0.25 inch margin versus ground measurements.

Was my property in the storm area?+

The map above shows each radar cell where MRMS estimated hail of 1 inch or larger. Enter your address in the free HailScore lookup for a property-level check of the radar record against your exact coordinates — no signup required.

Can I use this preliminary record for an insurance claim?+

The radar record can help you and your adjuster establish that hail was detected near your property on June 21, 2026 — it is the same NOAA MRMS data source many industry tools use. For the date of loss itself, adjusters typically also reference the ground-verified NOAA Storm Events entry once it publishes. A professional roof inspection remains the standard first step for documenting actual damage.