Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorm, heavy rainfall, and flash flooding threats continue from the Midwest to the Mid-Atlantic and across the central High Plains. Record heat continues for areas of the central/southern Plain into the Southeast Read More >
Overview
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A fast moving line of showers and thunderstorms tracked east over eastern Iowa late Thursday evening. A brief, weak tornado touched down just northwest of Olin, IA damaging a metal shed and displacing a fire hydrant.
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 Radar Image (11:15 P.M.) (IEM) (Click to zoom) (Click here for Animation) |
Tornadoes:
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Tornado - Olin, IA
Track Map  
Downloadable KMZ File |
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The Enhanced Fujita (EF) Scale classifies tornadoes into the following categories:
| EF0 Weak 65-85 mph |
EF1 Moderate 86-110 mph |
EF2 Significant 111-135 mph |
EF3 Severe 136-165 mph |
EF4 Extreme 166-200 mph |
EF5 Catastrophic 200+ mph |
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Photos & Video:
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| Olin, IA (NWS Survey) |
Olin, IA (NWS Survey) |
Environment
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| Figure 1: SPC Day 1 Outlook (20:00 UTC) | Figure 2: SPC Day 1 Tornado Outlook (20:00 UTC) | Figure 3: SPC Day 1 Hail Outlook (20:00 UTC) |
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| Figure 4: SPC Day 1 Wind Outlook (20:00 UTC) | Figure 5: DVN Sounding: 5/3/18 19z | Figure 6: DVN Sounding: 5/4/18 00z |
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