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Moderate drought arrives in Onondaga County
October 18, 2026
Abnormally dry conditions (D0) covered 83.11 percent of Onondaga County for the week of October 13-19, 2026, with a trace of moderate drought (D1) appearing for the first time this autumn at 0.09 percent of the county. The dry conditions represent a notable shift from early October when the county was entirely free of drought classification.
Northern caddisflies found in Onondaga County
October 18, 2026
were observed on October 15 in Onondaga County. Caddisflies are pollution-sensitive aquatic insect larvae requiring clean, well-oxygenated water, and their presence through mid-fall indicates water quality supporting sensitive macroinvertebrates at emergence time.
Common buckthorn spreading across Onondaga County
October 18, 2026
was observed 49 times in the past 30 days across the Ontario Lowlands, most recently on 2026-10-07 in Onondaga County. This introduced shrub forms dense monocultures that exclude native understory species across the region.
More about Purple loosestrife
Purple loosestrife spreads near Gibbon and Kearney
September 23, 2026
, an introduced plant species, was documented on September 4 at multiple locations near Gibbon and in Kearney. The species continues to persist in the region through late summer, flowering in wetland habitats across the basin where seasonal and temporary flooding support its establishment.
Purple loosestrife still blooming around Milwaukee
September 21, 2026
was recorded 9 times in the past 30 days across the Milwaukee area, with the most recent sighting on 2026-09-18 in Milwaukee. This introduced wetland invasive remains in flower in September as warmer than normal conditions extend the growing season. Mean temperatures in the past month were 2.8°F above normal for highs and 3.9°F above normal for lows.
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