Tennessee, 2018

Heat in Tennessee, July 12 to 17, 2018

July 12 to 17, 2018 · NWS MEG · 16 events in 15 counties and zones

Upper level high pressure dominated the region during the middle of July 2018. High temperatures and humidity combined to create dangerous heat indices across the Mid-South.

Where it happened

Every event with a place to put it; 16 filed by county or forecast zone are drawn at its center, in a lighter ring. 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
0
Property damage
None recorded
Crop damage
None recorded
Events
16

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 MEG wrote it up.

Upper level high pressure dominated the region during the middle of July 2018. High temperatures and humidity combined to create dangerous heat indices across the Mid-South.

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 Memphis, TN wrote its last area forecast discussion before the first event at Jul 12, 5:14 AM CST, 5 hours 46 minutes earlier.

Area forecast discussion, Jul 12, 5:14 AM CST, 5 hours 46 minutes before
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Hazardous weather outlook, Jul 12, 2:01 AM CST, 8 hours 59 minutes before
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The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

16 heat. Local standard time, as filed.

Heat, Shelby

When
July 12, 11:00 AM CST to July 17, 7:00 PM CST
Where
Shelby forecast zone
Reported by
ASOS
Coordinates
35.184, -89.896 (the zone’s center; the record gives no point)

Heat index values exceeded 105 degrees.

Heat, Fayette

When
July 12, 11:00 AM CST to July 17, 7:00 PM CST
Where
Fayette forecast zone
Reported by
ASOS
Coordinates
35.197, -89.414 (the zone’s center; the record gives no point)

Heat index values exceeded 105 degrees.

Heat, Tipton

When
July 12, 11:00 AM CST to July 17, 7:00 PM CST
Where
Tipton forecast zone
Reported by
ASOS
Coordinates
35.497, -89.759 (the zone’s center; the record gives no point)

Heat index values exceeded 105 degrees.

Heat, Haywood

When
July 12, 11:00 AM CST to July 17, 7:00 PM CST
Where
Haywood forecast zone
Reported by
ASOS
Coordinates
35.583, -89.284 (the zone’s center; the record gives no point)

Heat index values exceeded 105 degrees.

Heat, Lauderdale

When
July 12, 11:00 AM CST to July 17, 7:00 PM CST
Where
Lauderdale forecast zone
Reported by
ASOS
Coordinates
35.761, -89.631 (the zone’s center; the record gives no point)

Heat index values exceeded 105 degrees.

Heat, Dyer

When
July 12, 11:00 AM CST to July 17, 7:00 PM CST
Where
Dyer forecast zone
Reported by
ASOS
Coordinates
36.059, -89.414 (the zone’s center; the record gives no point)

Heat index values exceeded 105 degrees.

Heat, Crockett

When
July 12, 11:00 AM CST to July 16, 7:00 PM CST
Where
Crockett forecast zone
Reported by
ASOS
Coordinates
35.814, -89.139 (the zone’s center; the record gives no point)

Heat index values exceeded 105 degrees.

Heat, Madison

When
July 12, 11:00 AM CST to July 16, 7:00 PM CST
Where
Madison forecast zone
Reported by
ASOS
Coordinates
35.608, -88.838 (the zone’s center; the record gives no point)

Heat index values exceeded 105 degrees.

Heat, Madison

When
July 12, 11:00 AM CST to July 16, 7:00 PM CST
Where
Madison forecast zone
Reported by
ASOS
Coordinates
35.608, -88.838 (the zone’s center; the record gives no point)

Heat index values exceeded 105 degrees.

Heat, Hardeman

When
July 12, 11:00 AM CST to July 15, 7:00 PM CST
Where
Hardeman forecast zone
Reported by
ASOS
Coordinates
35.207, -88.993 (the zone’s center; the record gives no point)

Heat index values exceeded 105 degrees.

Heat, Chester

When
July 12, 11:00 AM CST to July 15, 7:00 PM CST
Where
Chester forecast zone
Reported by
ASOS
Coordinates
35.422, -88.613 (the zone’s center; the record gives no point)

Heat index values exceeded 105 degrees.

Heat, Gibson

When
July 13, 11:00 AM CST to July 16, 7:00 PM CST
Where
Gibson forecast zone
Reported by
ASOS
Coordinates
35.997, -88.933 (the zone’s center; the record gives no point)

Heat index values exceeded 105 degrees.

Heat, McNairy

When
July 13, 11:00 AM CST to July 15, 7:00 PM CST
Where
McNairy forecast zone
Reported by
ASOS
Coordinates
35.175, -88.564 (the zone’s center; the record gives no point)

Heat index values exceeded 105 degrees.

Heat, Lake

When
July 14, 11:00 AM CST to July 16, 7:00 PM CST
Where
Lake forecast zone
Reported by
ASOS
Coordinates
36.335, -89.493 (the zone’s center; the record gives no point)

Heat index values exceeded 105 degrees.

Heat, Obion

When
July 14, 11:00 AM CST to July 16, 7:00 PM CST
Where
Obion forecast zone
Reported by
ASOS
Coordinates
36.358, -89.149 (the zone’s center; the record gives no point)

Heat index values exceeded 105 degrees.

Heat, Weakley

When
July 14, 11:00 AM CST to July 16, 7:00 PM CST
Where
Weakley forecast zone
Reported by
ASOS
Coordinates
36.298, -88.718 (the zone’s center; the record gives no point)

Heat index values exceeded 105 degrees.

What these are

Heat
Heat below excessive heat criteria that still caused deaths, injuries or significant impacts.

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

The same day elsewhere

More

Every storm in Tennessee in 2018Every state in 2018This day in weather historyWarnings in Tennessee, July 2018

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 2026-09-24. Each event’s entry at NCEI: 784873, 784874, 784876, 784877, 784878, 784879, 784880, 784881, 784882, 784883, 784884, 784885, 784886, 784887, 784888, 784889.