March 19, 2025 hail storm near Marengo, IA. Radar-confirmed hail track and contractor lead lists available.
NWS WARNING AREA · Marengo Metro · Mar 19, 2025 · Click a zone to highlight
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This storm generated 19 NWS alert zones. One purchase covers the complete storm track and all addresses across every zone.
Marengo, IA
157 addresses in warning area
Alert issued Wed, Mar 19 · 9:44 AM UTC
Marion, IA
16,135 addresses in warning area
Alert issued Wed, Mar 19 · 10:30 AM UTC
Hampton, IA
4,125 addresses in warning area
Alert issued Wed, Mar 19 · 10:37 AM UTC
Hampton, IA
379 addresses in warning area
Alert issued Wed, Mar 19 · 11:42 AM UTC
Clinton, IA
17,548 addresses in warning area
Alert issued Wed, Mar 19 · 1:57 PM UTC
Sterling, IL
97 addresses in warning area
Alert issued Wed, Mar 19 · 2:10 PM UTC
Rushville, IL
283 addresses in warning area
Alert issued Wed, Mar 19 · 7:01 PM UTC
Canton, IL
7,425 addresses in warning area
Alert issued Wed, Mar 19 · 7:23 PM UTC
Delavan, IL
8,968 addresses in warning area
Alert issued Wed, Mar 19 · 8:19 PM UTC
Lincoln, IL
603 addresses in warning area
Alert issued Wed, Mar 19 · 8:43 PM UTC
Shelbyville, IL
18 addresses in warning area
Alert issued Wed, Mar 19 · 9:04 PM UTC
Illiopolis, IL
1,888 addresses in warning area
Alert issued Wed, Mar 19 · 9:13 PM UTC
Tuscola, IL
1,320 addresses in warning area
Alert issued Wed, Mar 19 · 9:23 PM UTC
Clay City, IL
Alert issued Wed, Mar 19 · 9:35 PM UTC
Robinson, IL
146 addresses in warning area
Alert issued Wed, Mar 19 · 9:37 PM UTC
Robinson, IL
Alert issued Wed, Mar 19 · 10:01 PM UTC
Catlin, IL
330 addresses in warning area
Alert issued Wed, Mar 19 · 10:09 PM UTC
Pana, IL
3,007 addresses in warning area
Alert issued Wed, Mar 19 · 10:43 PM UTC
Milmine, IL
2,480 addresses in warning area
Alert issued Wed, Mar 19 · 10:50 PM UTC
Marengo, Iowa, saw multiple rounds of severe hail on March 19, 2025, with the largest verified stones reaching 1 inch. The storm was active from before daybreak into mid-morning, and four NWS alerts tracked the hail threat across the area.
The first alert came at 4:44 AM CDT, when dual-polarization radar indicated 1-inch hail. A second alert followed at 5:30 AM CDT with radar and spotter verification. Later rounds developed near daybreak and into the morning, with additional alerts at 8:57 AM CDT and 9:10 AM CDT, both tied to 1-inch hail and spotter-confirmed confidence.
Field reports tightened the timeline. At 9:05 AM CDT, a spotter reported hail coming down heavy right then, with stones measured at 1 inch. Two minutes later, another observer described a mix of pea to half-inch hail with hail covering the ground, while a second 9:05 AM CDT report noted pea to half-inch hail at 0.5 inch. The reports place the strongest surface impact in the mid-morning window rather than the first alert cycle.
The ground reports point to a storm that produced repeated hail bursts, not a single isolated pulse. Hail coverage was enough to collect on the ground in at least one report, and the size range shifted quickly from pea to half-inch stones up to verified 1-inch hail within minutes.
That pattern fits a compact hail core moving through the warning area in waves. The early radar signal at 4:44 AM CDT showed the threat before spotters confirmed the morning rounds. By 5:30 AM CDT, the storm had enough support from both radar and observers to hold 1-inch hail confidence. The later 8:57 AM CDT and 9:10 AM CDT alerts show the hail threat remained organized into the morning.
No specific structural or vehicle damage was included in the reports provided for Marengo. The available field data does show enough hail coverage to warrant inspection of exposed surfaces, roof edges, gutters, and soft metal trim where repeated 0.5-inch to 1-inch stones can leave marks without producing obvious breakage.
Marengo sits in east-central Iowa along the corridor where spring hail can arrive before many crews are fully mobilized. This event began before sunrise and continued through mid-morning, so the first inspection window should focus on early-activity properties that may not have received a separate follow-up report after the later hail rounds.
The spotter notes suggest a hail swath with quick size changes across a short time span. One report showed 1-inch hail at 9:05 AM CDT. Another at 9:07 AM CDT fell back to pea to half-inch hail with ground cover. Contractors should treat those transitions as a sign to check adjacent roofs and elevations, not just the address tied to the strongest report.
For exterior triage, start with soft metals, downspouts, gutters, vents, shingles, and skylights. On light commercial roofs, check membrane seams and penetrations near the areas where hail would have built enough coverage to be noticed at ground level. On residential work, look for bruising at roof edges and slope breaks where repeated hail often leaves the most visible pattern.
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Try the Free Demo →The warning area covered the broader storm path, but the field reports give the cleanest read on where hail actually reached the surface. For precise hail track data, use the StormSnipe Strike Map.
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