Storm Impacting the Northwest U.S.; Fire Weather Conditions in Southern California; Severe Weather in the South

A Pacific storm is bringing areas of low elevation rain, moderate to heavy mountain snow, and high winds to the Northwest. Strong Santa Ana winds and very dry conditions are producing elevated to critical fire weather conditions in southern California. Isolated strong to severe thunderstorms are possible through early Wednesday morning across parts of northeast Texas into western Tennessee. 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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Storm Impacting the Northwest U.S.; Fire Weather Conditions in Southern California; Severe Weather in the South

May 3, 2018 Tornado Survey Information