Alert archive / Oregon / River Flood Warnings in 2012

River Flood Warning 35, NWS Portland, OR

March 30, 2012Lane County, Oregon

NWS Portland, OR issued this river flood warning at Mar 30, 2012, 5:43 AM PDT for Lane County, Oregon. It took effect at Mar 30, 2012, 8:08 AM PDT. It was in force for 36 hr.

The area

The counties it named.

The facts

Issued: Mar 30, 2012, 5:43 AM PDT (12:43 UTC)
In effect from: Mar 30, 2012, 8:08 AM PDT
Expired: Mar 31, 2012, 7:54 PM PDT
In force: 36 hr
Issued by: NWS Portland, OR
Flood severity: Moderate

County Lane County, OR

The radar

The Portland,OR radar (KRTX), 197 km from the middle of the area, began a volume at 12:45 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The river

Written for the forecast point Siuslaw River near Mapleton (MPLO3).

Action stage: 15 ft
Minor stage: 18 ft
Moderate stage: 22 ft
Major stage: 28 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 14307620, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning went out, 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 this river flood warning went out at Mar 30, 2:51 AM PDT, 2 hours 52 minutes earlier.

Area forecast discussion, Mar 30, 2:51 AM PDT, 2 hours 52 minutes before

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Hazardous weather outlook, Mar 30, 4:28 AM PDT, 1 hour 15 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PORTLAND OR
428 AM PDT FRI MAR 30 2012

ORZ005-009-014-WAZ022-023-039-040-311430-
LOWER COLUMBIA-WESTERN COLUMBIA RIVER GORGE-
UPPER HOOD RIVER VALLEY-I-5 CORRIDOR IN COWLITZ COUNTY-
GREATER VANCOUVER AREA-SOUTH WASHINGTON CASCADE FOOTHILLS-
428 AM PDT FRI MAR 30 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST
OREGON AND SOUTHWEST WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT LIKELY BE NEEDED TODAY.

ORZ001>004-006>008-010-012-PZZ210-WAZ020-021-311430-
NORTH OREGON COAST-CENTRAL OREGON COAST-
COAST RANGE OF NORTHWEST OREGON-
CENTRAL COAST RANGE OF WESTERN OREGON-GREATER PORTLAND METRO AREA-
CENTRAL WILLAMETTE VALLEY-SOUTH WILLAMETTE VALLEY-
NORTHERN OREGON CASCADE FOOTHILLS-
CASCADE FOOTHILLS IN LANE COUNTY-COLUMBIA RIVER BAR-WILLAPA HILLS-
SOUTH WASHINGTON COAST-
428 AM PDT FRI MAR 30 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST
OREGON...NORTHWEST OREGON AND SOUTHWEST WASHINGTON COASTAL WATERS
AND SOUTHWEST WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

HEAVY RAIN AT TIMES WILL BRING RISES TO RIVERS AND STREAMS. URBAN
AREAS AND SMALL STREAM FLOODING IS POSSIBLE.

FLOOD WARNINGS CONTINUE FOR THE NEHALEM AND WILSON RIVERS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

FLOOD WATCH CONTINUES THROUGH SATURDAY AFTERNOON FOR MANY RIVERS
IN THE AREA.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

ORZ011-013-WAZ019-311430-
NORTHERN OREGON CASCADES-CASCADES IN LANE COUNTY-
SOUTH WASHINGTON CASCADES-
428 AM PDT FRI MAR 30 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST
OREGON AND SOUTHWEST WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

LOWERING SNOW LEVELS AND EXPECTED PRECIPITATION MAY BRING
SIGNIFICANT SNOW ACCUMULATION TO MOUNTAIN PASSES.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT LIKELY BE NEEDED TODAY.

PZZ255-311430-
COASTAL WATERS FROM CASCADE HEAD TO FLORENCE OR OUT 10 NM-
428 AM PDT FRI MAR 30 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST
OREGON AND SOUTHWEST WASHINGTON COASTAL WATERS.

.DAY ONE...TODAY AND TONIGHT

GALE WARNING THROUGH 9 AM THIS MORNING.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT LIKELY BE NEEDED TODAY.

The office that day

Everything else NWS Portland, OR issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 29, 8:51 PM PDT	Small Craft Advisory for Winds	PQR		6 hr
Mar 29, 9:38 PM PDT	Areal Flood Advisory	PQR	Benton, Clatsop, Columbia, Lane, Lincoln, Polk and 3 more	10 hr
Mar 30, 3:02 AM PDT	Small Craft Advisory for Winds	PQR		6 hr
Mar 30, 4:27 AM PDT	Winter Weather Advisory	PQR		23 hr
Mar 30, 6:48 AM PDT	Areal Flood Advisory	PQR	Benton, Clackamas, Hood River, Lane, Lincoln, Linn and 6 more	9 hr
Mar 30, 8:12 AM PDT	River Flood Warning	PQR	Washington	27 hr
Mar 30, 9:15 AM PDT	River Flood Warning	PQR	Lincoln	11 hr
Mar 30, 9:41 AM PDT	Gale Watch	PQR		6 hr
Mar 30, 9:41 AM PDT	Small Craft Advisory for Winds	PQR		11 hr
Mar 30, 11:37 AM PDT	River Flood Warning	PQR	Benton	43 hr
Mar 30, 11:37 AM PDT	River Flood Warning	PQR	Benton, Polk	43 hr
Mar 30, 2:20 PM PDT	River Flood Warning	PQR	Clackamas	13 hr
Mar 30, 3:13 PM PDT	Gale Warning	PQR		38 hr
Mar 30, 3:38 PM PDT	Areal Flood Advisory	PQR	Benton, Clackamas, Hood River, Lane, Lincoln, Linn and 5 more	6 hr

Nearby

River Flood Warnings in Oregon, 2012 Every river flood warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.