Winter Storm in Oregon, April 10 to 11, 2001

Name: Winter Storm in Oregon, April 10 to 11, 2001
Start: 2001-04-10T05:00
End: 2001-04-11T15:00
Location: Oregon

April 10 to 11, 2001 · NWS PQR · 1 event in 1 county or zone

A spring storm brought 22 inches of snow to Timberline and Mount Hood Meadows, 20 inches to Bennett Pass, 16 inches to Government Camp and 9 inches to Santiam and Willamette Pass.

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 PQR wrote it up.

A spring storm brought 22 inches of snow to Timberline and Mount Hood Meadows, 20 inches to Bennett Pass, 16 inches to Government Camp and 9 inches to Santiam and Willamette Pass.

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 Portland, OR wrote its last area forecast discussion before the first event at Apr 10, 2:00 AM PST, 3 hours earlier.

Area forecast discussion, Apr 10, 2:00 AM PST, 3 hours before

NORTHWEST OREGON AND SOUTHWEST WASHINGTON FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND OR
300 AM PDT TUE APR 10 2001

OVERRUNNING PAC MOISTURE CONTINUING TO SPREAD INTO DISTRICT OVERNIGHT
WITH AREAS LIGHT RAIN IN OBSERVATIONS AND NWS RADAR. SATELLITE WATER
VAPOR SHOWS DARKENING FROM VORTICITY LOBE DROPPING SOUTH THROUGH
BC...SUPPORTING MODEL TRENDS OF CYCLOGENESIS THIS AFTERNOON AND
TONIGHT FROM INTERACTION OF PAC MOISTURE WITH COLD CANADIAN LOW. IF
THIS OCCURS AS ADVERTIZED...INCREASED ONSHORE FLOW AND STRONG
VERTICAL MOTION WILL GIVE GENEROUS RAINS TO AREA...ESPECIALLY THIS
AFTERNOON AND EVENING AS SYSTEM SLIDES SE. WILL ISSUE HIGH END
CASCADE SNOW ADVISORY AS SNOW LEVELS REMAIN WELL BELOW PASSES.
NORMALLY WET MESO ETA HAS 24 HOUR PRECIPITATION TOTALS OVER CASCADES
NEAR WINTER STORM CRITERIA. MAIN COLD AIR PULLED OUT OF CANADA BEHIND
FRONT SHOULD REMAIN EAST OF CASCADES AND WILL RAISE TUE NIGHT SNOW
LEVELS A BIT FROM CURRENT FORECASTS. PRECIPITATION ENDS BY LATER
TONIGHT...BUT DEVELOPING UPPER LOW DROPPING SOUTH THROUGH EASTERN
OREGON MAY GIVE ENOUGH INSTABILITY AND RESIDUAL MOISTURE FOR
SCATTERED SHOWERS WED...MAINLY NEAR CASCADES.

EXTENDED MODELS CONTINUING TO SHOW A WEAK FRONT MOVING INTO THE AREA
THU FOLLOWED BY SHOWERS FRI IN MOIST CYCLONIC ONSHORE FLOW.
HOWEVER...OVER THE WEEKEND MODELS ARE SIMILAR DEVELOPING A DEEP
VERTICALLY STACKED LOW OFF THE PAC NW COAST...WITH HINTS THAT THE
CIRCULATION AROUND THE LOW MAY STAY OR RETREAT OFFSHORE. FOR NOW WILL
KEEP A CHANCE OF RAIN IN FORECAST AS CLOSER CANADIAN GLOBAL STILL
ROTATING MOISTURE INLAND. WILLIS

AST +72  PDX +83  SLE +93  EUG 9+4

.KPDX...SMALL CRAFT ADVISORY> FOR ROUGH COLUMBIA BAR.
        SNOW ADVISORY S WA/N OR CASCADES.

Event by event

1 winter storm. Local standard time, as filed.

Winter Storm, Northern Oregon Cascades

When: April 10, 5:00 AM PST to April 11, 3:00 PM PST
Where: Northern Oregon Cascades forecast zone
Reported by: DEPT OF HIGHWAYS

What these are

Winter Storm: A storm that brought snow, sleet or freezing rain at warning levels, usually over several hours or days.

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

The same day elsewhere

Every storm in Oregon in 2001 Every state in 2001 This day in weather history Warnings in Oregon, April 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: 5239247.