Severe Thunderstorms Possible in the South Central U.S.; Wildfire Smoke Impacts in the North Central U.S.

Scattered severe thunderstorms may bring large hail and isolated damaging winds this weekend over parts of the south central U.S. Smoke from Canadian wildfires will bring air quality issues to parts of the north central U.S. this weekend. Air Quality Alerts have been issued. Read More >

Overview

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.

Radar Image (11:15 P.M.) (IEM) (Click to zoom) (Click here for Animation)

Tornado
Photos & Video
Environment

Tornadoes:

Tornado - Olin, IA
Jones County

Date	05/03/2018
Time (Local)	11:15 - 11:17 pm CDT
EF Rating	EF-0
Est. Peak Winds	75 mph
Path Length	0.1 mile
Max Width	10 yards
Injuries/Deaths	0 / 0
Summary: An EF-0 touched down northwest of Olin, IA late Thursday night. A 150 lb fire hydrant was displaced 15-20 ft and a metal shed was lofted 70 ft away.

Track Map

Downloadable KMZ File

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

Photos & Video:


Olin, IA (NWS Survey)	Olin, IA (NWS Survey)

Environment


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)


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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Severe Thunderstorms Possible in the South Central U.S.; Wildfire Smoke Impacts in the North Central U.S.

May 3, 2018 Tornado Survey Information