Shamrock, Illinois

Matched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.

• 1941 USGS Newton quadrangle1:62500
• 1943 USGS Newton quadrangle1:62500, 2 printings
• 1958 USGS Belleville quadrangle1:250000, 3 printings
• 1962 USGS Belleville quadrangle1:250000
• 1985 USGS Newton quadrangle1:24000
• 1986 USGS Olney quadrangle1:100000, 2 printings

Regional context, not property-specific evidence. The National Weather Service names Shamrock in 1 storm report in 2022: 1 hail. No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.

Every storm recorded in Jasper County

The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.

This settlement is recorded in the Geographic Names Information System as feature 1725231. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.

Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.