Idaho, 2022

Heat in Idaho, July 29 to 31, 2022

July 29 to 31, 2022 · NWS MSO · 2 events in 2 counties and zones

A very strong ridge of high pressure settled over the Colombia River basin bringing hot daytime temperatures and warm overnight lows. The consecutive days of heat made it difficult to cool locations without air conditioning.

Where it happened

Every event with a place to put it; 2 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
2

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 MSO wrote it up.

A very strong ridge of high pressure settled over the Colombia River basin bringing hot daytime temperatures and warm overnight lows. The consecutive days of heat made it difficult to cool locations without air conditioning. Daily record highs were set for at least one observation site.

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 Missoula, MT wrote its last area forecast discussion before the first event at Jul 29, 2:48 AM PST, 5 hours 12 minutes earlier.

Area forecast discussion, Jul 29, 2:48 AM PST, 5 hours 12 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

2 heat. Local standard time, as filed.

Heat, Lower Hells Canyon / Salmon River Region

When
July 29, 8:00 AM PST to July 31, 11:59 PM PST
Where
Lower Hells Canyon / Salmon River Region forecast zone
Reported by
Official NWS Observations
Coordinates
45.844, -115.467 (the zone’s center; the record gives no point)

Highs temperatures reached from 105 to 113 degrees Fahrenheit, with overnight lows in the upper 60s to lower 70s.

Heat, Orofino / Grangeville Region

When
July 29, 8:25 AM PST to July 31, 12:00 AM PST
Where
Orofino / Grangeville Region forecast zone
Reported by
Official NWS Observations
Coordinates
46.259, -115.562 (the zone’s center; the record gives no point)

Highs temperatures reached from 100 to 108 degrees Fahrenheit with overnight lows in the upper 60s to lower 70s. Pierce ID set record high temperatures on July 29 and August 1, and also remained above 95F for 6 straight days from July 29 to August 3. This was its 2nd longest such streak.

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 Idaho in 2022Every state in 2022This day in weather historyWarnings in Idaho, July 2022

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: 1044902, 1044898.