Following a very wet April and May, warmer June temperatures began to melt an above normal mountain snowpack increasing flows into already swollen river basins. |This caused minor to locally moderate flooding along Lake Pend Oreille and Pend Oreille River along with several of its smaller tributaries.
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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.
The episode as NWS OTX wrote it up.
Following a very wet April and May, warmer June temperatures began to melt an above normal mountain snowpack increasing flows into already swollen river basins. |This caused minor to locally moderate flooding along Lake Pend Oreille and Pend Oreille River along with several of its smaller tributaries. Agriculture fields, recreation sites, roadways, as well as homes were impacted by the flooding.
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 Spokane, WA wrote its last area forecast discussion before the first event at Jun 14, 9:48 PM PST, 2 hours 12 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE SPOKANE WA 1048 PM PDT TUE JUN 14 2011 .SYNOPSIS... A LOW PRESSURE SYSTEM WILL MOVE INTO THE INLAND NORTHWEST OVERNIGHT...AND REMAIN OVER THE REGION THROUGH THE WEEKEND. BREEZY AND OCCASIONALLY SHOWERY WEATHER IS EXPECTED WEDNESDAY THROUGH THE WEEKEND...AND TEMPERATURES WILL BE COOLER THAN AVERAGE. && .DISCUSSION... UPDATE FOR THIS EVENING TO FINE TUNE CLOUD COVER AND ADJUST OVERNIGHT LOW TEMPERATURES BASED ON A COMBINATION OF SATELLITE AND 00Z MODEL GUIDANCE. A COLD CORE UPPER-LEVEL LOW CONTINUES TO SETTLE INTO THE PAC NW THIS EVENING WITH THE LEADING COLD FRONT CURRENTLY EXTENDING FROM PORTHILL TO SPOKANE TO WALLA WALLA. A COMBINATION OF DRY AIR BELOW 750MB AND ABOVE 700MB HAS RESULTED IN VERY LITTLE THEN PASSING VIRGA FOR MOST LOCATIONS ALONG AND NORTH OF INTERSTATE 90 THIS EVENING. HOWEVER...YOU DON'T HAVE TO CROSS TO FAR INTO CANADIAN TO FIND STRONGER SHOWERS AND EMBEDDED THUNDERSTORMS THAT HAVE DEVELOPED ALONG THE FRONT. THE MAIN PRECIPITATION THREAT FOR MY CWA WILL BE WITHIN THE POST FRONTAL AIR MASS WHERE LAPSE RATES WILL BE QUICKLY STEEPENING UNDER THE 500H COLD POOL AND MIDLEVEL FORCING WILL BE ENHANCED BY A COMBINATION OF A 90 KT JET STREAK POKING ACROSS THE CASCADES AND DIFFERENTIAL VORTICITY ADVECTION. FOR THE MOST PART...THIS PRECIPITATION THREAT WILL FOCUS IMMEDIATELY ALONG NEAR THE BRITISH COLUMBIA BORDER UNTIL 18Z WEDNESDAY WHEN THE COLD POOL SAGS SOUTH...SURFACE HEATING INCREASES LAPSE RATES...AND RICHER BOUNDARY LAYER MOISTURE SNEAKS UP THE COLUMBIA GORGE INTO NE WASHINGTON. THIS WILL SET THE STAGE FOR WIDELY SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS ACROSS MUCH OF N/NE WASHINGTON AND N IDAHO. /SB && .AVIATION... 06Z TAFS...AN UPPER-LEVEL LOW WILL TAKE RESIDENCE OVER EASTERN WA AND NORTHERN ID DURING THE NEXT 12 HRS. STRONG COLD ADVECTION AND TIGHTENING PRESSURE GRADIENTS WILL LEAD TO BREEZY WINDS AT MOST TERMINALS AFT 15Z WITH THE STRONGEST WINDS EXPECTED THROUGH THE CASCADE GAPS AND KEAT...ESPECIALLY AFT 18Z. AFTER 18Z...EXPECT INCR SHWRS OVER NE WA AND N ID WITH ISOLD -TSRA VCNTY KGEG...KSFF..KCOE. KEAT AND KMWH WILL LIKELY BE SPARED OF THE PCPN COURTESY OF THE CASCADE RAIN SHADOW BUT NUMEROUS SHWRS WILL REMAIN CONFINED TO THE CASCADE CREST LEADING TO WIDESPREAD MTN OBSCURATIONS. SHWRS WILL WANE AND SKIES WILL BEGIN TO CLEAR SHORTLY AFT 02Z THUR. /SB && .PRELIMINARY POINT TEMPS/POPS... SPOKANE 46 64 44 64 47 71 / 10 50 30 20 20 10 COEUR D'ALENE 45 62 44 60 45 68 / 10 50 30 30 30 10 PULLMAN 43 63 41 63 44 68 / 0 30 30 20 20 10 LEWISTON 50 70 48 69 49 74 / 0 20 20 20 10 10 COLVILLE 45 69 45 67 47 73 / 10 50 50 30 30 20 SANDPOINT 45 61 43 60 45 66 / 10 50 50 50 50 30 KELLOGG 42 58 41 58 43 64 / 10 50 60 40 40 30 MOSES LAKE 47 74 46 74 48 77 / 10 10 10 10 10 0 WENATCHEE 50 71 49 72 52 77 / 10 10 0 10 10 0 OMAK 46 70 46 71 48 76 / 10 20 30 20 20 10 && .OTX WATCHES/WARNINGS/ADVISORIES... ID...NONE. WA...NONE. &&
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE SPOKANE WA 653 AM PDT TUE JUN 14 2011 IDZ001-004-WAZ037-038-041>043-151400- NORTHERN PANHANDLE-CENTRAL PANHANDLE MOUNTAINS- NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS-WENATCHEE AREA- EAST SLOPES NORTHERN CASCADES-OKANOGAN VALLEY- 653 AM PDT TUE JUN 14 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH IDAHO... NORTH CENTRAL WASHINGTON AND NORTHEAST WASHINGTON. .DAY ONE...TODAY AND TONIGHT HIGH FLOWS WILL CONTINUE ON SEVERAL OF THE RIVERS IN EASTERN WASHINGTON AND NORTH IDAHO AS THE SPRING MOUNTAIN SNOW MELT CONTINUES. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY TEMPERATURES WILL BE AT OR BELOW AVERAGE THROUGH THE WEEKEND. NO BIG WARM UP IS ANTICIPATED IN THE NEAR TERM...BUT TEMPERATURES WILL BE SUFFICIENT TO CAUSE MOUNTAIN SNOW MELT IN THE RIVER BASINS OF EASTERN WASHINGTON...NORTHERN IDAHO...AND SOUTHERN BRITISH COLUMBIA. IDZ002-003-026-027-WAZ031>036-044-151400- COEUR D'ALENE AREA-IDAHO PALOUSE-LEWISTON AREA- LEWIS AND SOUTHERN NEZ PERCE COUNTIES-NORTHEAST BLUE MOUNTAINS- LOWER GARFIELD AND ASOTIN COUNTIES-WASHINGTON PALOUSE- MOSES LAKE AREA-UPPER COLUMBIA BASIN-SPOKANE AREA- WATERVILLE PLATEAU- 653 AM PDT TUE JUN 14 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH IDAHO... NORTH CENTRAL IDAHO...CENTRAL WASHINGTON...EAST CENTRAL WASHINGTON...NORTHEAST WASHINGTON AND SOUTHEAST WASHINGTON. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
The national radar mosaic for the moment the first event began.
2 flood. Local standard time, as filed.
Lake Pend Oreille spilled out of its banks flooding portions of Lakeview Avenue in Bayview, ID. The lake enveloped recreational sites, docks, and ramps. There was also minor flooding of yards and the parking lot of the Scenic Bay Marina.
Minor spring flooding occurred along the Pend Oreille River, Clark Fork River, and Lake Pend Oreille. Johnson Creek Road on the south side of the Clark Fork River had some sloughing. In central and western areas of the county, Priest River inundated portions of LeClerc Road just east of Oldtown as well as Dufort Road, just east of Priest Lake. Numerous docks and lakeside yards were flooded by high water levels along the shores of Lake Pend Oreille. In Sandpoint, ID the basement of the Old Power House was flooded.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Idaho in 2011Every state in 2011This day in weather historyWarnings in Idaho, June 2011
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: 317141, 317134.