May 11–18, 2026 Storm Activity Digest: Hail Events and Addresses Overview

StormSnipe Intel Blog: weekly hail and severe storm activity across Nebraska, Missouri, Kansas, and Iowa, May 11–May 18, 2026.

Week in Review

15 hail events were detected between May 11 and May 18, 2026. Total residential and commercial addresses detected within the event footprints: 2,438. Peak hail size recorded: 4.00 in at multiple locations. Eight events were verified by radar and spotters. Seven events were detected by dual-polarization radar (NEXRAD hail detection) without spotter confirmation.

Event verification breakdown by addresses: radar and spotter verified events account for 917 addresses. Dual-polarization radar detections account for 1,521 addresses. The single largest address concentration was Belgrade, Nebraska on May 17 with 1,436 addresses.

Dates with the highest activity: May 16 produced the majority of reports across Nebraska and Missouri, including multiple 3.75 in and 4.00 in reports. May 17 produced the largest address footprint in a single detection at Belgrade, NE.

Notable Events

• Amherst, NE – 2026-05-16 – 4.00 in hail – 144 addresses – radar and spotter verified
• Belgrade, NE – 2026-05-17 – 3.56 in hail – 1,436 addresses – dual-polarization radar (NEXRAD hail detection)
• Trenton, MO – 2026-05-16 – 4.00 in hail – 0 addresses – radar and spotter verified
• Amherst, NE – 2026-05-16 – 3.75 in hail – 0 addresses – dual-polarization radar (NEXRAD hail detection)
• Humphreys, MO – 2026-05-16 – 4.00 in hail – 0 addresses – radar and spotter verified
• Alexander, KS – 2026-05-18 – 1.50 in hail – 239 addresses – radar and spotter verified
• Amherst, NE – 2026-05-16 – 4.00 in hail – 0 addresses – radar and spotter verified
• Kearney, NE – 2026-05-16 – 3.75 in hail – 85 addresses – dual-polarization radar (NEXRAD hail detection)
• Brewster, KS – 2026-05-16 – 4.00 in hail – 1 address – radar and spotter verified
• Sylvan Grove, KS – 2026-05-18 – 2.00 in hail – 12 addresses – radar and spotter verified
• Trenton, MO – 2026-05-16 – 3.75 in hail – 0 addresses – dual-polarization radar (NEXRAD hail detection)
• Linneus, MO – 2026-05-16 – 4.00 in hail – 0 addresses – dual-polarization radar (NEXRAD hail detection)
• Chula, MO – 2026-05-16 – 4.00 in hail – 0 addresses – dual-polarization radar (NEXRAD hail detection)
• Wilber, NE – 2026-05-17 – 2.50 in hail – 0 addresses – dual-polarization radar (NEXRAD hail detection)
• Sheffield, IA – 2026-05-16 – 3.25 in hail – 521 addresses – radar and spotter verified

Each line above lists location, event date, maximum reported hail diameter, detected address count, and verification method. The three largest address footprints this week: Belgrade, NE (1,436), Sheffield, IA (521), and Alexander, KS (239).

Regional Patterns

Nebraska accounted for 6 of the 15 events. Missouri accounted for 5 events. Kansas produced 3 events. Iowa recorded 1 event. May 16 shows a high concentration of severe reports across the central Plains. Multiple 3.75 in and 4.00 in reports occurred on the same day across adjacent counties in NE and MO.

Belgrade, NE generated the dominant footprint. Belgrade represents 1,436 of the 2,438 addresses detected this week, or roughly 59 percent of detected addresses. Sheffield, IA represents 521 addresses, about 21 percent of the week total. Remaining addresses are dispersed across smaller detections in Alexander, Kearney, Amherst, Sylvan Grove, and Brewster.

Verification split matters for dispatch priority. Radar and spotter verified events are concentrated in the Sheffield IA and several Amherst and KS detections. Large dual-polarization radar detections without spotter confirmation, such as Belgrade, still contain high address counts and should be treated as high-priority canvass opportunities when follow-up confirms ground conditions.

Several 4.00 in reports tracked over low-address-count areas. Those high-intensity reports still indicate severe updraft environments on May 16 but do not translate directly to canvassable addresses.

What Contractors Should Watch

• Priority canvass zones. Start with Belgrade, NE (May 17). 1,436 addresses detected by NEXRAD hail detection. Follow with Sheffield, IA (May 16) — 521 addresses and radar plus spotter verification. Alexander, KS (May 18) — 239 addresses and spotter confirmation.

• Secondary canvass zones. Amherst, NE has multiple detections on May 16 including one 144-address, radar-and-spotter-verified detection. Kearney, NE has 85 addresses. Sylvan Grove, KS and Brewster, KS have small but actionable footprints (12 and 1 addresses respectively).

• Verification tiering. Use radar and spotter verified events for immediate deployment where resources are limited. Use large dual-polarization radar detections for block canvasses once field checks confirm accessible properties.

• Crew allocation. Allocate more crews to Belgrade and Sheffield based on address counts. Assign one to two teams for Alexander and Amherst. Reserve rapid-response or single-crew checks for Kearney, Sylvan Grove, and Brewster.

• Documentation priorities. Photograph hail size indicators. Record dates and specific addresses tied to confirmed damage. Link field reports to the corresponding detection date for claims and estimating.

• Market timing. Expect initial homeowner outreach to spike in the first two weeks after the event date in high-address zones. Schedule follow-up visits two to four weeks later for missed leads.

Forward-looking note on atmospheric setup for the coming week

Forecast guidance indicates a transient upper-level trough moving into the central Plains with renewed mid-level shear and modest instability late in the next week. This pattern favors isolated to scattered severe storms with hail potential, particularly over Nebraska and eastern Kansas. Monitor convective outlooks and updated radar-derived hail detections for new high-address footprints.