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Storm reports for May 8, 2017

NOAA recorded 70 hail reports, 2 wind reports and 2 tornado reports in 6 states on May 8, 2017.

in 6 states
74
Storm reports
About 12 miles from Denver, CO
2.75 in
Largest hail
Near 32.83, -104.54, NM
75 mph
Highest gust
Highest rating EF1, near 37.90, -105.04, CO
2
Tornado reports
Sources: NOAA/NWS Storm Prediction Center reports; damage surveys from the NWS Damage Assessment Toolkit

Hail, inches

  • 0.75
  • 1
  • 1.5
  • 2
  • 2.5
  • 3+

Dots: reports.

  • Wind report
  • Tornado and its path
  • Surveyed tornado path

Source: NOAA/NWS Storm Prediction Center, final severe weather database (from NOAA's Storm Data). Report day: 12:00 UTC on May 8, 2017 to 12:00 UTC the next day. Times are Central.

Select a dot or a path for the report. NWS survey teams walked the shaded paths after the storm; each is drawn at the widest width they found, so it can look wider than the damage at any one spot.

What happened

A hailstorm hit Denver and its western suburbs on the afternoon of May 8. Hail 2.75 inches across, baseball size, fell at Edgewater in Jefferson County at 2:05 p.m. MST, and 2.5-inch hail fell in Denver a minute later.1,2 The hail damaged cars, homes and businesses across a large part of Denver and the suburbs of Arvada, Lakewood and Wheat Ridge, punching holes in siding, breaking windows and tearing screens.1 NOAA's Storm Events Database lists $2.3 billion in property damage for the storm.1

Hail and heavy rain also clogged drains and caused flash flooding across Greeley. Garden-level apartments flooded, and several businesses and other buildings had flood damage.1

Sources

  1. 1. NOAA NCEI Storm Events Database: Storm Events Database: Event 684770, hail, Jefferson County, Colorado
  2. 2. NOAA NCEI Storm Events Database: Storm Events Database: Event 684771, hail, Denver County, Colorado

Reports by hour

Hail70, most at 4 PM

Wind2, most at 6 PM

Tornado2, most at 3 PM

Reports per hour, Central time. Each row has its own scale.

Every report

Source: NOAA/NWS Storm Prediction Center.

TimeRatingWherePath
3:24 PMEF1Near 37.90, -105.04, CO0.19 mi long, 100 yd wide
7:17 PMEF0Near 36.03, -104.15, NM0.2 mi long, 40 yd wide

By state

StateReportsHailWindTornado
Colorado504901
New Mexico171511
Iowa3300
Minnesota2200
Nevada1010
Wyoming1100

Cities with reports nearby

Reports within 15 miles of the center of each city we track.

CityLargest hailHighest gustTornado reports
Denver, CO2.75 inNone0
Fort Collins, CO1.5 inNone0
Greeley, CO1.5 inNone0
Boulder, CO1.0 inNone0

Reports are what observers recorded near a location, not a complete record of every storm. They don’t describe conditions at any building.