Heavy Rain, Elmore
- When
- October 16, 12:00 AM MST to 9:57 AM MST
- Where
- Elmore County, 2 mi N of Pine
- Reported by
- Trained Spotter
- Coordinates
- 43.509, -115.320
Heavy Rain fell between midnight and 9:57 am MDT with 1.06 inches measured near Pine Idaho.
Flash Flood and Damaging Winds in Idaho, October 16, 2012
A strong cold passed from west to east through southeastern Oregon and South Eastern Idaho during the morning hours of October 16th. Winds of 35 to 45 mph occurred in the strong pressure gradient associated with the front.
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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- $1,000
- Crop damage
- None recorded
- Events
- 6
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 BOI wrote it up.
A strong cold passed from west to east through southeastern Oregon and South Eastern Idaho during the morning hours of October 16th. Winds of 35 to 45 mph occurred in the strong pressure gradient associated with the front. However, scattered thunderstorms along the front produced locally stronger winds as high as 71 mph and significant wind damage in portions of southern Idaho. Some thunderstorms also produced very heavy rain and flash flooding occurred in mountainous areas which were burned by wild fires earlier in the year.
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 Boise, ID wrote its last area forecast discussion before the first event at Oct 15, 9:00 PM MST, 3 hours earlier.
Area forecast discussion, Oct 15, 9:00 PM MST, 3 hours before
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The Boise radar (KCBX), 74 km away, was scanning. The volume nearest the first event began at 06:58 UTC.
Event by event
4 thunderstorm wind, 1 heavy rain, 1 flash flood. Local standard time, as filed.
Thunderstorm Wind, Boise
- When
- October 16, 9:00 AM MST to 9:05 AM MST
- Where
- Boise County, 4.9 mi SW of Garden Vly Arpt
- Measured
- 48 kt (55 mph) estimated gust
- Property damage
- $1,000
- Reported by
- Law Enforcement
- Coordinates
- 44.020, -116.000
High winds knocked down several large trees near Holly Mountain. Power outages were reported in Idaho City, Placerville and Centerville Idaho.
Flash Flood, Elmore
- When
- October 16, 10:00 AM MST to 12:00 PM MST
- Where
- Elmore County, 5.49 mi WSW of Atlanta Graham Arpt to 6.07 mi WSW of Atlanta Graham Arpt
- Cause
- Heavy Rain / Burn Area
- Reported by
- Park/Forest Service
- Coordinates
- 43.932, -115.378
A 36 inch culvert was clogged with debris and water went over the roadway making it impassable. Some damage to the road occurred. The washout was located on Forest Service Road 255 in the Lost Man Creek drainage which is east of the Roaring River which flows into the Middle Fork of the Boise River.
Thunderstorm Wind, Twin Falls
- When
- October 16, 10:50 AM MST to 11:00 AM MST
- Where
- Twin Falls County, 0.11 mi SSE of (Twf)twin Falls Arpt to 2.15 mi E of Stricker
- Measured
- 61 kt (70 mph) estimated gust
- Reported by
- Emergency Manager
- Coordinates
- 42.478, -114.479
Wide spread trees down along 3700 N road between Buhl and Kimberly. Two new commodity buidlings recieved damage.
Thunderstorm Wind, Twin Falls
- When
- October 16, 10:50 AM MST to 11:00 AM MST
- Where
- Twin Falls County, 0.86 mi SE of Twin Falls
- Measured
- 61 kt (70 mph) estimated gust
- Reported by
- Broadcast Media
- Coordinates
- 42.560, -114.460
The broadcast news media (KMVT) reported up to 11,000 costomers without power throughout the Magic Valley after the storm.
Thunderstorm Wind, Twin Falls
- When
- October 16, 10:50 AM MST to 11:00 AM MST
- Where
- Twin Falls County, (Twf)twin Falls Arpt
- Measured
- 62 kt (71 mph) measured gust
- Reported by
- ASOS
- Coordinates
- 42.480, -114.480
A peak wind gust of 71 mph was measured by the Twin Falls ASOS.
What these are
- Heavy Rain
- Rainfall totals unusual for the place and season that did not produce a flood.
- 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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- High Wind in Idaho, October 16, 2012
- High Wind in Montana, October 16 to 17, 2012
- High Wind in Wyoming, October 16, 2012
- High Wind in Montana, October 16 to 17, 2012
- High Wind in Wyoming, October 16, 2012
- High Wind and Heavy Rain in Idaho, October 16, 2012
- High Wind and Strong Wind in Utah, October 16, 2012
- Strong Wind in Idaho, October 16, 2012
- Strong Wind in Washington, October 16, 2012
- Drought in New Mexico, October 16 to 31, 2012
- High Wind in Washington, October 16, 2012
- Wildfire in Colorado, October 16 to 31, 2012
More
Every storm in Idaho in 2012Every state in 2012This day in weather historyWarnings in Idaho, October 2012
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 2026-09-30. Each event’s entry at NCEI: 417510, 417515, 417508, 417517, 417518, 417520.