High pressure building into northern California and Nevada on the 11th and 12th created gusty east to northeast winds and choppy conditions on the west side of Lake Tahoe.
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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 REV wrote it up.
High pressure building into northern California and Nevada on the 11th and 12th created gusty east to northeast winds and choppy conditions on the west side of Lake Tahoe.
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 Reno, NV wrote its last area forecast discussion before the first event at Jun 11, 2:05 PM PST, 3 hours 55 minutes earlier.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
305 PM PDT FRI JUN 11 2010
.SHORT TERM...
CURRENT WATER VAPOR IMAGERY SHOWS UPPER LEVEL LOW PRESSURE DROPPING
SOUTHWARD THROUGH MINERAL COUNTY. COLD AIR ALOFT WITH THE UPPER LOW
HAS RESULTED IN A FEW SHOWERS OVER MINERAL AND MONO COUNTIES THIS
AFTERNOON. CONFIDENCE IN THESE SHOWERS DEVELOPING INTO THUNDERSTORMS
IS LOW...1 OUT OF 5...DUE TO WEAK INSTABILITY AND MODERATELY STRONG
WINDS ALOFT. TODAY SHOULD BE THE COLDEST DAY OF THIS FORECAST PERIOD
WITH TEMPERATURES ABOUT 10 DEGREES BELOW AVERAGE.
FOR THE REST OF TODAY AND TONIGHT...NORTHEAST WINDS WILL INCREASE
THROUGH THE AFTERNOON AND EVENING AS THE UPPER LOW DROPS SOUTH.
LOCAL GUSTS BETWEEN 30-40 MPH POSSIBLE AT TIMES. STRONGEST WINDS
EXPECTED TONIGHT ALONG THE SIERRA CREST AS THE UPPER JET MOVES OVER
AND CROSS BARRIER THERMAL/PRESSURE GRADIENTS TIGHTEN. THERE IS A
POTENTIAL FOR STRONGER WINDS TO SURFACE AT LAKE TAHOE...RESULTING IN
VERY CHOPPY WATERS ON WESTERN SHORES TONIGHT. FORECASTER CONFIDENCE
OF THIS OCCURRING IS 2 OUT OF 5.
THE LOW LINGERS OVER SOUTHERN NEVADA ON SATURDAY THEN FINALLY BEGINS
TO MOVE EAST ON SUNDAY. THIS WILL BRING A SLOW WARMING TREND WITH
TEMPERATURES RETURNING TO NEAR AVERAGE BY SUNDAY. RESIDUAL MOISTURE
IN NORTHEAST FLOW WILL RESULT IN SOME STRATOCU DEVELOPMENT DURING
THE AFTERNOONS...MAINLY TO THE SOUTH AND EAST. NOT QUITE AS WINDY AS
GRADIENTS RELAX.
MONDAY WILL BE THE WARMEST DAY OF THE WEEK AS AN UPPER LEVEL RIDGE
MOVES OVER THE AREA. 700 MB TEMPERATURES INCREASE TO AROUND 9 C BY
MONDAY AFTERNOON WHICH SHOULD RESULT IN HIGHS ABOUT 5 DEGREES ABOVE
AVERAGE IN MOST AREAS. MODELS ARE ALSO IN PRETTY GOOD AGREEMENT THAT
THE THERMAL TROUGH WILL PUSH EAST OF THE SIERRA AND INTO THE WESTERN
GREAT BASIN...AIDING IN THE DEVELOPMENT OF AN AFTERNOON ZEPHYR. ONE
THING THAT WILL NEED TO BE MONITORED IS THE POTENTIAL FOR CONVECTION
MONDAY AFTERNOON AND EVENING OVER EXTREME NORTHWEST PORTIONS OF THE
FORECAST AREA IN LASSEN AND MODOC COUNTIES. NAM12 AND GFS40 ARE
ADVERTISING MUCAPE VALUES GREATER THAN 500 J/KG AND MODIFIED TOTAL
TOTALS BETWEEN 34-36 AHEAD OF AN APPROACHING TROUGH OF LOW PRESSURE.
IF LATER MODEL RUNS CONTINUE TO SHOW THIS SOLUTION...CHANCE POPS MAY
NEED TO BE INTRODUCED FOR LASSEN AND MODOC COUNTIES. SCV
.LONG TERM...TUESDAY THROUGH FRIDAY...
COOLED DOWN HIGHS 2 TO 6 DEGREES FOR TUESDAY AND WEDNESDAY AND
RAISED SKY COVER SOME MONDAY NIGHT THROUGH WEDNESDAY...OTHERWISE
LITTLE CHANGE TO EXTENDED GRIDS.
THE PARADE OF TROUGHS CONTINUES NEXT WEEK WITH SOLID AGREEMENT ON
ENERGY DROPPING IN FROM THE PACIFIC NORTHWEST. THE MAIN DISCREPANCY
WILL BE WITH HOW FAR SOUTH AND WEST THE INCOMING LOW GOES...WITH THE
12Z ECMWF AND CANADIAN KEEPING IT FURTHER NORTH AND EAST THAN THE
GFS. THIS WILL ULTIMATELY AFFECT TEMPERATURES AND THE CHANCE FOR
SHOWERS (ESPECIALLY NORTHERN CWA). FOR NOW...I JUST PINNED ON THE
CONCEPT OF SOME KIND OF TROUGHINESS AND LOWERED HIGH TEMPERATURES
TUESDAY AND WEDNESDAY.
PRECIPITATION WISE...IF THE GFS PANS OUT WE WILL HAVE TO ADD IN
SHOWERS NORTH OF INTERSTATE 80 TUESDAY AND WEDNESDAY. AS THE
CANADIAN AND ECMWF ARE FURTHER NORTH WITH THE CORE OF THE UPPER LOW
THEY SKIRT THE FAR NORTHERN CWA WITH LIGHT QPF BY WEDNESDAY BUT MISS
THE REST OF THE AREA. WITH THE UNCERTAINTY I DID NOT ADJUST THE
GHOST POPS ANY WITH THIS PACKAGE...BUT IN THE NEXT SHIFT OR TWO WE
MAY NEED TO ADD IN SHOWERS (AND THUNDER?) FOR AT LEAST THE NORTHERN
CWA.
BY NEXT FRIDAY...FLAT RIDGING STILL LOOKS TO BUILD OVERHEAD FOR A
REBOUND TO AT LEAST AVERAGE HIGH TEMPS (UPPER 70S TO MID 80S IN THE
LOWER VALLEYS) UNDER MOSTLY SUNNY SKIES. BEYOND DAY 7...THE CLIMATE
PREDICTION CENTER AND GFS/CANADIAN/ECMWF ENSEMBLES INDICATE A
GENERAL TROUGH OVER THE WEST SO TEMPS LOOK TO REMAIN NEAR OR EVEN A
BIT BELOW AVERAGE INTO NEXT WEEKEND. THE MODERATE TO EVEN COOL LATE
SPRING CONTINUES! SNYDER
&&
.AVIATION...
VFR WITH NO MAJOR CONCERNS THROUGH SATURDAY. THE MAIN STORY WILL BE
MODERATE TO STRONG NE-E FLOW OVER THE SIERRA RIDGES. THE FLOW WILL
STRENGTHEN FURTHER OVERNIGHT...WITH GUSTS 50-60 KTS EXPECTED INTO
SATURDAY MORNING. SNYDER
&&
.REV WATCHES/WARNINGS/ADVISORIES...
NV...LAKE WIND ADVISORY UNTIL 4 AM PDT SATURDAY NVZ004.
LAKE WIND ADVISORY UNTIL 11 AM PDT SATURDAY NVZ001.
LAKE WIND ADVISORY UNTIL 11 AM PDT SATURDAY NVZ002.
CA...LAKE WIND ADVISORY UNTIL 11 AM PDT SATURDAY CAZ073.
LAKE WIND ADVISORY UNTIL 11 AM PDT SATURDAY CAZ072.
&&
HTTP://WEATHER.GOV/RENOThe national radar mosaic for the moment the first event began.
1 strong wind. Local standard time, as filed.
A boat rescue operator on Lake Tahoe reported four 22 to 25 foot boats sunk from Dollar Point (near Tahoe City) south to Rubicon Bay.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2010Every state in 2010This day in weather historyWarnings in California, June 2010
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: 233916.