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Storm reports for May 20, 2020

NOAA recorded 56 hail reports, 70 wind reports and 8 tornado reports in 11 states on May 20, 2020.

in 11 states
134
Storm reports
About 6 miles from Lubbock, TX
3.0 in
Largest hail
Near 47.28, -105.84, MT
110 mph
Highest gust
Highest rating EF1, about 11 miles from Charleston, SC
8
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 20, 2020 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

On the evening of May 20, a supercell raced north across Lubbock, Texas, dropping baseball-size hail on south-central Lubbock and smaller hail across much of the city, including the airport.1 The largest hailstone reported was 3 inches across. A second storm brought hail up to 2 inches from just east of Wolfforth to Texas Tech University.2 NWS Lubbock said the hail damaged and destroyed many vehicles and roofs and shattered numerous vehicle windows.1 The NOAA Storm Events Database lists $100 million in property damage from the Lubbock hail.2

That evening in eastern Montana, an NWS survey near Brockway in McCone County found building damage and sheared power poles that pointed to winds of 105 to 110 mph.3

Sources

  1. 1. NWS Lubbock: Large hail pounds parts of Lubbock on 20 May 2020
  2. 2. NOAA NCEI: Storm Events Database: Hail, Lubbock County, TX
  3. 3. NOAA NCEI: Storm Events Database: Thunderstorm Wind, McCone County, MT

Reports by hour

Hail56, most at 6 PM

Wind70, most at 10 PM

Tornado8, most at 7 PM

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

Every report

Source: NOAA/NWS Storm Prediction Center.

TimeRatingWherePath
10:47 AMEF1About 11 miles from Charleston, SC0.77 mi long, 300 yd wide
7:38 PMEF0About 9 miles from Greeley, CO0.9 mi long, 50 yd wide
7:41 PMEF0About 9 miles from Greeley, CO1.4 mi long, 50 yd wide
7:45 PMEF0About 9 miles from Greeley, CO4 mi long, 50 yd wide
7:46 PMEF0About 10 miles from Greeley, CO4.8 mi long, 50 yd wide
7:56 PMEF0About 10 miles from Greeley, CO8 mi long, 50 yd wide
8:26 PMEF0About 15 miles from Greeley, CO1.15 mi long, 50 yd wide
10:17 PMEF0Near 48.16, -106.49, MT0.82 mi long, 50 yd wide

By state

StateReportsHailWindTornado
Montana6214471
Wyoming171340
Texas151230
South Carolina10541
Colorado9216
Florida7250
South Dakota5230
Georgia3120
Louisiana3210
Oklahoma2200
Nebraska1100

Cities with reports nearby

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

CityLargest hailHighest gustTornado reports
Lubbock, TX3.0 inNone0
Charleston, SC1.25 in69 mph1
Miami, FL0.75 inNone0
Greeley, CONoneNone5
Laredo, TXNone75 mph0
San Angelo, TXNone64 mph0
Savannah, GANone58 mph0
Tallahassee, FLNone75 mph0

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