Oregon, 2003

Hail in Oregon, May 3, 2003

May 3, 2003 · NWS BOI · 1 event in 1 county or zone

Strong Thunderstorms moving eastward across northern Malheur county produced quarter size hail in ontario.

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 BOI wrote it up.

Strong Thunderstorms moving eastward across northern Malheur county produced quarter size hail in ontario.

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 May 3, 7:54 PM MST, 53 minutes earlier.

Area forecast discussion, May 3, 7:54 PM MST, 53 minutes before
SOUTHWEST IDAHO/SOUTHEAST OREGON AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BOISE IDAHO
854 PM SAT MAY 03 2003

EARLY EVENING IR SAPIX SHOW CONVECTIVELY UNSTABLE CHARACTER OF AIR
MASS WITH SCATTERED THUNDERSTORMS STILL FIRING OVER OUR CWA. SINCE
01Z ACTIVITY HAS DECREASED EXCEPT FOR A CLUSTER OF THUNDERSTORMS
STILL GOING IN NRN MALHEUR COUNTY NEWD TO WASHINGTON COUNTY.
FURTHER WEST IN OREGON A N/S COLD FRONT IS RAPIDLY TAKING SHAPE AND
MOVING EAST.  FRONT EXPECTED TO WRN IDAHO BORDER 12Z AND TREASURE
VALLEY ABOUT SUNRISE...MAGIC VALLEY MID MORNING.  FRONT WILL BE
STRONG ENOUGH FOR THUNDERSTORMS EVEN IN THE MORNING. CURRENT
FORECASTS IN GOOD SHAPE...MAIN CONCERN IS CURRENT THUNDERSTORMS IN
MALHEUR COUNTY.

.BOI...NONE.

=
L COLIN
Hazardous weather outlook, May 3, 5:00 AM MST, 15 hours 47 minutes before
IDZ011>016-028>030-ORZ061>064-041200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BOISE IDAHO
600 AM MDT SAT MAY 3 2003

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

.DAY ONE...TODAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

The radar

The Boise radar (KCBX), 84 km away, was scanning. The volume nearest the first event began at 03:47 UTC.

Open the radar archive at this moment

Event by event

1 hail. Local standard time, as filed.

Hail, Malheur

When
May 3, 8:47 PM MST to 8:57 PM MST
Where
Malheur County, Ontario
Measured
1 in hail
Reported by
LAW ENFORCEMENT
Coordinates
44.033, -116.967

What these are

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

More

Every storm in Oregon in 2003Every state in 2003This day in weather historyWarnings in Oregon, May 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: 5378320.