Name: Damaging Wind in Idaho, June 26, 2002
Start: 2002-06-26T18:20
End: 2002-06-26T18:40
Location: Idaho

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 happened

The episode as NWS PIH wrote it up.

Trees downed with roof torn off one house and power outages widespread in the town of Ammon.

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 Pocatello, ID wrote its last area forecast discussion before the first event at Jun 26, 1:50 PM MST, 4 hours 30 minutes earlier.

Area forecast discussion, Jun 26, 1:50 PM MST, 4 hours 30 minutes before

SOUTHEAST IDAHO AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE POCATELLO/IDAHO FALLS ID
250 PM MDT WED JUN 26 2002

U/L DISTURBANCE IN NV PUSHING MOISTURE AND WEAK DYNAMICS OVER CWFA
WITH UNSTABLE AIRMASS AT SFC.  CU FIELD ALREADY BEGINNING TO POP WITH
WEAK ECHOS OVER CENTRAL MTNS AND LIGHTNING JUST NORTH OF CHALLIS.
TSTORMS SHOULD BE MAINLY DRY...BUT JUST ENOUGH TO WARRANT 20 POPS OVER
TERRAIN ZNS AND 10 POPS SNAKE VALLEY THIS EVENING. PERSISTENCE FCST
FOR THU WITH NO CHANGE IN TEMPS OR SFC DEWPTS. ONLY MAJOR CHANGE WOULD
BE AVN PROG OF STRONGER S/WV PUSHING NORTHEAST FROM NV/UT INTO EASTERN
HIGHLANDS THU AFTN FOR A POSSIBLY EARLIER ROUND OF CONVECTION.
ANOTHER DISTURBANCE PROGGED FOR FRI EVE CENTRL MTNS SO WILL BUMP POPS
THERE AS WELL.  7H/8H TEMPS EXHIBIT LITTLE CHANGE NEXT 3 DAYS SO
EXPECT TEMPS TO REMAIN AT OR NEAR TODAYS HIGHS...FLIRTING WITH
RECORDS FOR PIH.

IN THE EXTENDED...RIDGE GRADUALLY FLATTENS OVER CWFA AS ENERGY FROM
PACIFIC LOW FLOATS INTO PAC NW.  ALTHOUGH 5H HEIGHTS DONT
CHANGE...THICKNESS DROP 30DAM FOR A SLOW RELATIVE COOL DOWN.  MRF ONCE
AGAIN BACKS OFF ON TIMING OF ONSHORE ARRIVAL OF MAIN TROF UNTIL
WEDNESDAY.  WILL GENERALLY ACCEPT THIS NEW SOLN FOR WED WITH PARTLY
CLOUDY AND AGAIN SLIGHTLY COOLER.  COLD FRONT LOOKS TO BE TUESDAY
NIGHT NOW SO BREEZY ON WED.  MSTR REMAINS PUSHED TO THE NORTH THROUGH
THE PERIOD SO WILL CONTINUE DRY.  DMH

.KSFX...AVAILABLE...VCP 21.

BYI 59/94/59/94 101010

.PIH...NONE.

PIH UU 056/094 055/094 056 10101

The radar

The Pocatello radar (KSFX), 70 km away, was scanning. The volume nearest the first event began at 01:20 UTC.

Open the radar archive at this moment

Event by event

1 thunderstorm wind. Local standard time, as filed.

Thunderstorm Wind, Bonneville

When: June 26, 6:20 PM MST to 6:40 PM MST
Where: Bonneville County, Ammon
Measured: 55 kt (63 mph)
Reported by: BROADCAST MEDIA
Coordinates: 43.467, -111.983

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 2002 Every state in 2002 This day in weather history Warnings in Idaho, June 2002

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: 5297254.