Idaho, 2001

Damaging Wind in Idaho, August 4, 2001

August 4, 2001 · NWS MSO · 1 event in 1 county or zone

Severe thunderstorm moved through eastern Lemhi County.

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

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

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.

Severe thunderstorm moved through eastern Lemhi County.

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 Aug 4, 1:46 PM MST, 2 hours 43 minutes earlier.

Area forecast discussion, Aug 4, 1:46 PM MST, 2 hours 43 minutes before
WESTERN MONTANA AND NORTH CENTRAL IDAHO FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
246 PM MDT SAT AUG 4 2001

.SHORT TERM...THUNDERSTORMS ARE DEVELOPING ACROSS THE SOUTHERN
SECTIONS OF THE CWA THIS AFTERNOON. WITH SEVERE THUNDERSTORMS
DEVELOPING IN THE SOUTHEASTERN SECTION OF THE CWA. ISOLATED
SHOWERS AND THUNDERSTORMS ARE DEVELOPING ACROSS THE REST OF THE CWA.
THE PACIFIC TROUGH WILL MOVE ACROSS THE AREA TONIGHT...PRODUCING
SHOWERS AND THUNDERSTORMS. AFTER THE TROUGH PASSES THROUGH THE AREA
LATER TONIGHT...THE RIDGE WILL BEGIN TO REBUILD WITH A WARMING AND
DRYING TREND. KOLATA

.EXTENDED...NO SIGNIFICANT CHANGES THROUGH DAY6 AS MEDIUM RANGE
CONTINUES TO SHOW HIGHER HEIGHTS ON TUESDAY...FOLLOWED BY WESTERN
CANADA TROUGH AXIS SLOWLY SINKING SOUTHWARD. HIGH PRESSURE CENTER
OVER WY WILL BRING SOME MOISTURE ACROSS THE SOUTHERN ZONES BY
MIDWEEK FOR A THREAT OF CONVECTION. TROUGH AXIS SLIDES ACROSS
SOUTHERnN CANADA WITH WEST TO NORTHWEST FLOW ALOFT OVER THE CWA LATE
IN THE WEEK. TEMPERATURES SHOULD MODERATE WITH RELATIVELY DRY
WEATHER TO END THE WEEK.  BOLDT

.MSO...SEVERE THUNDERSTORM WATCH UNTIL 7 PM MDT FOR MTZ007

The radar

The Pocatello radar (KSFX), 187 km away, was scanning. The volume nearest the first event began at 23:27 UTC.

Open the radar archive at this moment

Event by event

1 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Lemhi

When
August 4, 4:29 PM MST
Where
Lemhi County, 5 mi NE of Leadore
Measured
58 kt (67 mph)
Reported by
TRAINED SPOTTER
Coordinates
44.733, -113.283

What these are

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.

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

The same day elsewhere

More

Every storm in Idaho in 2001Every state in 2001This day in weather historyWarnings in Idaho, August 2001

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: 5261813.