August 18, 2025 hail storm near Deadwood, SD. Radar-confirmed hail track and contractor lead lists available.
NWS WARNING AREA · Deadwood Metro · Aug 18, 2025 · Click a zone to highlight
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This storm generated 12 NWS alert zones. One purchase covers the complete storm track and all addresses across every zone.
Deadwood, SD
Alert issued Mon, Aug 18 · 8:04 PM UTC
Rapid City, SD
Alert issued Mon, Aug 18 · 8:55 PM UTC
Dupree, SD
Alert issued Mon, Aug 18 · 9:07 PM UTC
Meadow, SD
Alert issued Mon, Aug 18 · 9:08 PM UTC
Hermosa, SD
Alert issued Mon, Aug 18 · 9:35 PM UTC
Meadow, SD
Alert issued Mon, Aug 18 · 9:44 PM UTC
Dupree, SD
Alert issued Mon, Aug 18 · 10:10 PM UTC
Eagle Butte, SD
Alert issued Mon, Aug 18 · 10:13 PM UTC
Hermosa, SD
Alert issued Mon, Aug 18 · 10:22 PM UTC
Fort Pierre, SD
Alert issued Mon, Aug 18 · 11:11 PM UTC
Gettysburg, SD
Alert issued Tue, Aug 19 · 12:09 AM UTC
Fort Pierre, SD
Alert issued Tue, Aug 19 · 12:13 AM UTC
A severe hail storm moved through Deadwood, SD, on August 18, 2025, producing verified 3-inch stones during a late-afternoon pulse of repeated warning areas. Field reports placed the most intense hail around 3:40 PM CDT, with radar and spotter confirmation aligning on the largest stones reported in the event.
The first warning area came at 3:04 PM CDT with 1.5-inch hail and radar plus spotter verified confidence. By 3:55 PM CDT, the threat had increased to 3-inch hail. A spotter report at 3:40 PM CDT described measured 2 to 3 inch hail stones, with a second report at the same time matching that size. Another report at 4:00 PM CDT noted 1.5-inch hail.
Additional warning areas followed in quick succession during the early evening. At 4:07 PM CDT, dual-polarization radar indicated 1-inch hail. At 4:08 PM CDT, the radar signal increased to 1.25 inches. A 4:35 PM CDT warning area carried a 2.75-inch hail estimate with radar and spotter verified confidence. Later warnings at 4:44 PM CDT, 5:10 PM CDT, and 5:22 PM CDT kept hail in the 1 to 1.25 inch range. Field reports at 4:07 PM CDT, 4:27 PM CDT, and 4:37 PM CDT included mPING submissions from spotters on hail near 0.75 to 1 inch.
The ground reports point to localized surface impact in the Deadwood area, with the clearest damage coming from vehicle glass. A spotter at 4:10 PM CDT reported a rear window with several holes in it after hail measured at 2.5 inches. That report followed the 3:40 PM CDT observations of 2 to 3 inch stones and fits the strongest part of the storm.
Other reports indicate a mixed hail field across the warning area, not a uniform swath of the same size. Spotter submissions ranged from 0.75 inch to 1.5 inches later in the event, while the radar estimates stepped down from the peak after 3:55 PM CDT. The sequence shows a storm that produced its hardest hits first, then continued with smaller hail as it moved through the area.
The field picture is consistent with scattered vehicle damage, especially in exposed parking areas and along travel corridors where the largest stones fell. The confirmed 3-inch size is enough to break automotive glass and leave visible impact marks on unprotected surfaces. Reports in Deadwood did not point to a broad structural damage pattern in the material provided, but the vehicle window loss and repeated large hail observations indicate a concentrated hail event rather than a brief light hail burst.
Deadwood storm work on August 18 should focus on vehicles first, then roofs, gutters, and soft metals. The strongest reports centered on 3:40 PM CDT and 4:10 PM CDT, which suggests the highest-impact window was short and tied to the mid-to-late afternoon core. Crews should look for cracked glass, dented hoods and roof panels, and puncture marks on lesser-protected vehicle surfaces before moving to larger exterior claims.
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Try the Free Demo →Roof inspections in the Deadwood area should pay attention to the largest stone reports rather than the smaller radar estimates later in the day. The event produced repeated warning areas after the peak, but the field reports show the worst hail early. That pattern often leaves a narrower but more severe damage path across parts of town, with sharper transitions between heavily hit and lightly hit blocks.
For documentation, separate the earliest large-hail complaints from later light-hail reports. The 2 to 3 inch reports belong near the core of the storm. The 1 inch and 1.25 inch reports later in the afternoon belong to the trailing portion. On a multi-zone storm like this, that distinction helps crews sort the heaviest loss concentration from the broader warning area coverage.
Use the Strike Map for precise hail track data across Deadwood.
Address data is sourced from the US National Address Database (NOAA/USDOT). Inclusion of an address does not guarantee physical damage occurred. Confidence scores are radar-derived estimates. Data Accuracy Disclaimer