North Carolina, 2010

Flash Flooding and Flood in North Carolina, July 12, 2010

July 12, 2010 · NWS GSP · 10 events in 6 counties and zones

A small MCS developed northwest of Charlotte. The cluster of thunderstorms intensified as it moved across the Charlotte metropolitan area, causing wind damage as well as some flash flooding on the southeast side of the city and into Union County, NC.

Where it happened

Every event with a place to put it. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

Open the live radar over this ground

The toll

Deaths
0
Injuries
1
Property damage
$80,000
Crop damage
$10,000
Events
10

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS GSP wrote it up.

A small MCS developed northwest of Charlotte. The cluster of thunderstorms intensified as it moved across the Charlotte metropolitan area, causing wind damage as well as some flash flooding on the southeast side of the city and into Union County, NC.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before the first event at Jul 12, 9:35 AM EST, 55 minutes earlier.

Area forecast discussion, Jul 12, 9:35 AM EST, 55 minutes before
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Hazardous weather outlook, Jul 12, 4:22 AM EST, 6 hours 8 minutes before
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In the hours before

Local storm report, Jul 12, 7:54 AM EST, 2 hours 36 minutes before
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The radar

The Greer radar (KGSP), 142 km away, was scanning. The volume nearest the first event began at 15:31 UTC.

Open the radar archive at this moment

Event by event

3 lightning, 3 thunderstorm wind, 2 flash flood, 1 hail, 1 flood. Local standard time, as filed.

Lightning, Alexander

When
July 12, 10:30 AM EST
Where
Alexander County, 1.79 mi SSW of All Healing Spgs
Property damage
$50,000
Reported by
Newspaper
Coordinates
35.906, -81.282

Lightning struck a home on Willie McLeod Rd, igniting a fire that caused significant damage.

Hail, Cleveland

When
July 12, 10:54 AM EST
Where
Cleveland County, 2.15 mi NNE of Washburn
Measured
0.75 in hail
Reported by
Trained Spotter
Coordinates
35.360, -81.620

Lightning, Alexander

When
July 12, 11:00 AM EST
Where
Alexander County, 3.36 mi W of Smiths Store
Property damage
$15,000
Reported by
Newspaper
Coordinates
35.948, -81.110

Lightning struck a barn on Rocky Springs Rd, igniting a fire that destroyed the structure and its contents.

Lightning, Iredell

When
July 12, 12:00 PM EST
Where
Iredell County, 1.83 mi SSW of Mazeppa
Injuries
1 direct, 0 indirect
Property damage
$15,000
Reported by
Newspaper
Coordinates
35.627, -80.796

Lightning struck at a church on Mazeppa Rd, injuring a man and damaging some equipment.

Thunderstorm Wind, Mecklenburg

When
July 12, 12:10 PM EST to 12:25 PM EST
Where
Mecklenburg County, 2.59 mi WSW of Caldwell to 0.74 mi SSE of Huntersville
Measured
50 kt (58 mph) estimated gust
Reported by
County Official
Coordinates
35.439, -80.894

Trees were blown down in and around Huntersville. A tree fell on an occupied vehicle on Sandowne Lane, about 3.5 miles northwest of Huntersville.

Thunderstorm Wind, Mecklenburg

When
July 12, 12:55 PM EST to 1:00 PM EST
Where
Mecklenburg County, 1.74 mi ESE of Stonehaven to 1.3 mi E of Mint Hill
Measured
55 kt (63 mph) estimated gust
Reported by
County Official
Coordinates
35.164, -80.740

The canopy of a gas station collapsed at the intersection of Independence Blvd and Margaret Wallace Rd and several trees were blown down in and around Mint Hill.

Thunderstorm Wind, Cabarrus

When
July 12, 1:00 PM EST
Where
Cabarrus County, 1.37 mi ESE of Roberta Mills
Measured
50 kt (58 mph) estimated gust
Reported by
Emergency Manager
Coordinates
35.360, -80.629

Trees were blown down on Stough Rd.

Flash Flood, Mecklenburg

When
July 12, 2:00 PM EST to 4:00 PM EST
Where
Mecklenburg County, 0.99 mi WSW of Oakhurst to 0.75 mi WSW of Stonehaven
Cause
Heavy Rain
Crop damage
$10,000
Reported by
Broadcast Media
Coordinates
35.194, -80.796

Apartments were flooded on Teal Point Dr due to Edwards Branch overflowing its banks. Also, McMullen Creek overflowed and flooded Lincrest Place and Sam Newell Rd was flooded by Irvin Creek.

Flash Flood, Union

When
July 12, 3:00 PM EST to 4:30 PM EST
Where
Union County, 3.07 mi NW of Indian Trail Arpt to 3.45 mi NNE of Indian Trail Arpt
Cause
Heavy Rain
Reported by
River/Stream Gage
Coordinates
35.145, -80.625

Several stream gauges on Goose Creek went well above flood stage. Impacts included flooding of State Rd 1524 and a few other roads northeast of Indian Trail.

Flood, Union

When
July 12, 4:30 PM EST to 10:30 PM EST
Where
Union County, 1.05 mi WSW of Fairview to 1.26 mi SE of Brief
Cause
Heavy Rain
Reported by
River/Stream Gage
Coordinates
35.146, -80.568

Flooding continued in the Goose Creek Basin through the evening, and progressed downstream to Fairview, where additional flooding developed near the highway 218 and 601 junction.

What these are

Lightning
A lightning strike that killed, injured or caused damage.
Hail
Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
Flood
Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in North Carolina in 2010Every state in 2010This day in weather historyWarnings in North Carolina, July 2010

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 252686, 249694, 252688, 252696, 249693, 250209, 250211, 250216, 250221, 250225.