Idaho, 2001

Damaging Wind in Idaho, July 21, 2001

July 21, 2001 · NWS MSO · 1 event in 1 county or zone

1 thunderstorm wind, as filed by the National Weather Service.

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
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 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 21, 12:50 PM MST, 6 hours 23 minutes earlier.

Area forecast discussion, Jul 21, 12:50 PM MST, 6 hours 23 minutes before
WESTERN MONTANA AND NORTH CENTRAL IDAHO FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MISSOULA MT
150 PM MDT SAT JUL 21 2001

.SHORT TERM...AVN HANDLING EJECTING SHORTWAVE MOVING INTO SOUTHEAST
OREGON AT BASE OF TROUGH BETTER THAN 12Z ETA. THIS FEATURE HOLDS
TOGETHER INTO THE LATE EVENING TO ENHANCE CONVECTION CURRENTLY FIRING
OVER SOUTHERN ZONES. PWATS DOWN FROM YESTERDAY AND STILL A LITTLE
UNCERTAIN ABOUT MODEL DIFFERENCES THIS EVENING...SO NO FLASH FLOOD
WATCH PLANNED. WITH DRIER AIR AROUND CLOUDBASE LEVEL AND LOWER
WETBULB ZEROES...WILL THROW IN MENTION OF GUSTY WINDS AND HAIL FOR
SOME AREAS. MORE DISORGANIZED SHORTWAVE ENERGY DROPPING DOWN FROM
SOUTHWEST CANADA WILL KEEP SHOWERS AND A FEW THUNDERSTORMS GOING
THROUGH THE MORNING ACROSS THE NORTHERN ZONES. FOR THE REMAINDER OF
THE SHORT TERM...STILL DEALING WITH TROUGH FOR CONTINUED INSTABILITY
AND WEAK DYNAMICS SUPPORTING SHOWERS AND THUNDERSTORMS. LITTLE BETTER
CHANCE IN NORTHWEST MONTANA TOMORROW AS NORTHERN WAVE AXIS DROPS
THROUGH...SO WILL GO CATEGORICAL CONVECTIVE WORDING THERE...OTHERWISE
ISOLATED TO SCATTERED ACROSS THE BOARD. SIGLER

.EXTENDED...WEAK TROUGH LIFTS NORTH DAY3/4 (TUE/WED) WITH RISING
HEIGHTS AND WARMING TREND. WILL KEEP SLIGHT CHANCE POPS MENTIONED
THROUGH DAY5 (THU) WITH MODELS ADVERTISING GENERAL TROFINESS OVER
REGION. UPPER RIDGE OVER THE 4-CORNERS AREA RE-ESTABLISHING ITSELF
TOWARD THE END OF THE PERIOD...FOR TYPICAL WARM DRY CONDITIONS. MSJ

.MSO...NONE.

The radar

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

Open the radar archive at this moment

Event by event

1 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Lemhi

When
July 21, 7:13 PM MST
Where
Lemhi County, 15 mi E of Leadore
Measured
56 kt (64 mph)
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
44.683, -113.050

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, July 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: 5257203.