Hail and Damaging Winds in Idaho, June 19, 2003

Name: Hail and Damaging Winds in Idaho, June 19, 2003
Start: 2003-06-19T13:25
End: 2003-06-19T19:20
Location: Idaho

June 19, 2003 · NWS BOI · 4 events in 4 counties and zones

A very moist upper level trough moving eastward across southern Idaho produced wide spread Thunderstorms over the region. Several Severe Thunderstorms occurred with winds in excess of 60 mph.

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: 4

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 very moist upper level trough moving eastward across southern Idaho produced wide spread Thunderstorms over the region. Several Severe Thunderstorms occurred with winds in excess of 60 mph. Hail to three quarters of on inch was reported three miles south of Reynolds Creek in Owyhee 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 Boise, ID wrote its last area forecast discussion before the first event at Jun 19, 8:50 AM MST, 4 hours 35 minutes earlier.

Area forecast discussion, Jun 19, 8:50 AM MST, 4 hours 35 minutes before

SOUTHWEST IDAHO/SOUTHEAST OREGON AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE IDAHO
950 AM MDT THU JUN 19 2003

MORE THUNDERSTORMS ON TAP FOR TODAY WITH VERY MOIST AND UNSTABLE
ENVIRONMENT ALREADY PRESENT EVEN BEFORE AFTERNOON HEATING. UPPER
LEVEL VORT MAX/TROF CURRENTLY MOVING EAST THROUGH NORTHERN
CALIFORNIA WHICH HAS NOT BEEN MODELED WELL IS BEGINNING TO SHEAR AND
WEAKEN BUT WILL STILL PROVIDE THE UPPER LEVEL SUPPORT TO KEEP
SCATTERED THUNDERSTORMS GOING WELL INTO THE EVENING...ESPECIALLY IN
THE CENTRAL MOUNTAINS.  GOES WATER VAPOR IMAGERY INDICATES VERY
MOIST FLOW AHEAD OF TROF.  THE MORNING SOUNDING FROM BOISE CONTINUES
TO SHOW THAT THE THUNDERSTORMS WILL BE OF A DIFFERENT CHARACTER
TODAY WITH THE MAIN THREAT BEING HEAVY RAIN AND POSSIBLE HAIL AS
OPPOSED TO THE DRY GUSTY STORMS FROM YESTERDAY.  WITH PRECIPITABLE
WATER VALUES BETWEEN 0.85 AND 1.00 INCHES AND CAPES BETWEEN 1000 AND
1900 J/KG...ISOLATED FLASH FLOOD PRODUCING THUNDERSTORMS IN STEEP
TERRAIN ARE POSSIBLE.  HOWEVER...WE DECIDED AGAINST ISSUING A FLASH
FLOOD WATCH AT THE MOMENT SINCE THE STORMS WILL BE MOVING ALONG AT
15 TO 20 MPH AND DO NOT BELIEVE PROBLEMS WILL BE MORE THAN
ISOLATED.  THE FLASH FLOOD THREAT WILL BE RE-EVALUATED EARLY THIS
AFTERNOON.

THE COOLING TREND WILL BEGIN IN EARNEST TODAY WITH TEMPERATURES 10
TO 15 DEGREES COOLER THAN YESTERDAY.

.BOI...NONE.

=
BREIDENBACH

Hazardous weather outlook, Jun 19, 5:00 AM MST, 8 hours 25 minutes before

IDZ011>016-028>030-ORZ061>064-201200-

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE BOISE IDAHO
600 AM MDT THU JUN 19 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWEST IDAHO AND SOUTHEAST
OREGON.

.DAY ONE...TODAY

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
THIS EVENING.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

The radar

The Boise radar (KCBX), 57 km away, was scanning. The volume nearest the first event began at 20:26 UTC.

Open the radar archive at this moment

Event by event

3 thunderstorm wind, 1 hail. Local standard time, as filed.

Thunderstorm Wind, Elmore

When: June 19, 1:25 PM MST to 1:35 PM MST
Where: Elmore County, Mountain Home Afb
Measured: 60 kt (69 mph) measured gust
Reported by: OTHER FEDERAL AGENCY
Coordinates: 43.050, -115.867

Hail, Owyhee

When: June 19, 6:40 PM MST to 6:50 PM MST
Where: Owyhee County, 3 mi S of Reynolds
Measured: 0.75 in hail
Reported by: GENERAL PUBLIC
Coordinates: 43.150, -116.733

Thunderstorm Wind, Payette

When: June 19, 6:55 PM MST to 7:10 PM MST
Where: Payette County, Fruitland
Measured: 65 kt (75 mph) estimated gust
Reported by: NEWSPAPER
Coordinates: 44.017, -116.917

Thunderstorm Wind, Gem

When: June 19, 7:10 PM MST to 7:20 PM MST
Where: Gem County, Emmett
Measured: 60 kt (69 mph) estimated gust
Reported by: BROADCAST MEDIA
Coordinates: 43.867, -116.500

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.
Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

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

The same day elsewhere

Every storm in Idaho in 2003 Every state in 2003 This day in weather history Warnings in Idaho, June 2003

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: 5378328, 5378329, 5378330, 5378331.