California, 2014

High Wind in California, May 9 to 10, 2014

May 9 to 10, 2014 · NWS HNX · 3 events in 3 counties and zones

A fast moving trough of low pressure brought very strong winds to much of Central California between May 9th to 11th.

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
3

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 HNX wrote it up.

A fast moving trough of low pressure brought very strong winds to much of Central California between May 9th to 11th.

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 Hanford, CA wrote its last area forecast discussion before the first event at May 9, 1:55 AM PST, 11 hours 5 minutes earlier.

Area forecast discussion, May 9, 1:55 AM PST, 11 hours 5 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
255 AM PDT FRI MAY 9 2014

.SYNOPSIS...
A COOL NORTHWEST FLOW WILL PROVIDE FOR BREEZY TO WINDY CONDITIONS
OVER THE MOUNTAINS AND KERN COUNTY DESERT WHILE KEEPING DAYTIME
TEMPERATURES NEAR OR SLIGHTLY COOLER THAN NORMAL THROUGH THE
MOTHERS DAY WEEKEND. A WARMING TREND IS EXPECTED NEXT WEEK AS HIGH
PRESSURE STRENGTHENS AND AN OFFSHORE FLOW BECOMES ESTABLISHED.

&&

.DISCUSSION...
LIGHT SHOWERS ASSOCIATED WITH A WEAKENING COLD FRONT ARE MOVING
THROUGH CENTRAL CA ATTM. BEST DYNAMICS ARE STILL TO THE NORTH AS
ONSHORE PRESSURE GRADIENTS ARE EXPECTED TO PICK UP LATER TODAY AND
WE HAVE KEPT IN WARM TEMPS IN THE VALLEY TODAY AS THE TIMING OF
THE MARINE AIR INTRUSION IS APPEARING A BIT LATER THIS AFTERNOON
AND EVENING. NW FLOW WILL KEEP THE COOL AIR IN PLACE THROUGH THE
WEEKEND WITH TEMPS JUST BELOW NORMAL THROUGH MOTHERS DAY WEEKEND.
CLOUDS WILL PERSIST OFF AND ON THROUGH MUCH OF THE WEEKEND AS
ANOTHER TROUGH OF LOW PRESSURE WILL DIG ALONG THE EAST SIDE OF THE
SIERRA...ALSO KNOWN AS AN INSIDE SLIDER. MOISTURE WILL BE
LIMITED...HOWEVER WE WILL SEE A WIND EVENT THROUGH PARTS OF THE
VALLEY AND ESPECIALLY OVER THE KERN COUNTY MOUNTAINS AND DESERT
REGION.

THE UPPER LOW CENTER IS OVER THE FOUR CORNERS BY SUNDAY NIGHT AND
EPAC RIDGE IS ESTABLISHING ITSELF OFF THE COAST. THE RIDGE WILL
CONTINUE TO BUILD NORTH AS A LARGE SCALE OMEGA BLOCKING PATTERN
SETS UP FROM THE CENTRAL PAC TO THE EAST COAST OF THE US WITH THE
MERIDIONAL RIDGE RIGHT OVER US. UNFORTUNATELY THIS CAN ONLY MEAN
ONE THING...THE RETURN OF EXTREMELY WARM TEMPS TO THE CENTRAL
CALIFORNIA INTERIOR TUESDAY THROUGH FRIDAY. THE RIDGE IS VERY SLOW
TO MOVE AND SHOWS LITTLE SIGNS OF BREAKING DOWN THROUGH THE WEEK.

TEMPERATURES IN THE SJV WILL BE APPROACHING THE CENTURY MARK WED
AND POSSIBLY THURSDAY. GUIDANCE FROM TONIGHTS RUNS WERE TRENDING
A BIT COOLER THAN PREVIOUS RUNS AND WE HAVE MADE SOME MINOR
ADJUSTMENTS. H500 HEIGHTS WERE APPROACHING THE 590DM WITH H850
TEMPS AROUND THE CRITICAL 24C VALUE...WHICH GIVES US SFC TEMPS
AROUND 100 IN THE VALLEY. IT APPEARS WED WILL BE THE HOTTEST DAY
AS WE SEE AN UPPER LEVEL FEATURE THAT TRIES TO FLATTEN THE RIDGE
A BIT ON THURSDAY FROM THE EAST AS IT MOVES THROUGH THE FOUR
CORNERS AREA. CONTINUED COOLING IS EXPECTED ON FRIDAY AS A CLOSED
LOW CENTER MOVING INTO THE PAC NW AND WILL FLATTEN THE RIDGE FROM
THE NORTH. TEMPS WILL STILL BE WELL ABOVE NORMAL THROUGH THE
FORECAST PERIOD WITH DRY RH VALUES ACROSS THE ENTIRE REGION. WE WILL
MONITOR FOR FIRE WEATHER CONCERNS BY EARLY NEXT WEEK.

&&

.AVIATION...
AREAS OF MVFR CEILINGS DEVELOPING OVER THE SOUTHERN SIERRA NEVADA
WITH LOCAL IFR AND MOUNTAIN OBSCURATION POSSIBLE IN SHOWERS AROUND
YOSEMITE NATIONAL PARK THROUGH 18Z TODAY. WIND GUSTS ABOVE 35 KNOTS
ARE EXPECTED TO DEVELOP OVER THE SIERRA NEVADA CREST AND THROUGH AND
BELOW THE KERN COUNTY MOUNTAIN PASSES. OTHERWISE...VFR CONDITIONS
WILL PREVAIL ACROSS THE CENTRAL CALIFORNIA INTERIOR THROUGH THE NEXT
24 HOURS.

&&

.AIR QUALITY ISSUES...
NONE.

&&

.CERTAINTY...

THE LEVEL OF CERTAINTY FOR DAYS 1 AND 2 IS HIGH.
THE LEVEL OF CERTAINTY FOR DAYS 3 THROUGH 7 IS HIGH.

THIS INFORMATION IS PROVIDED AS PART OF A TRIAL PROJECT CONDUCTED
BY THE NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD.
CERTAINTY LEVELS INCLUDE LOW...MEDIUM...AND HIGH. PLEASE VISIT
WWW.WEATHER.GOV/HNX/CERTAINTY.PHP /ALL LOWER CASE/ FOR ADDITIONAL
INFORMATION AND/OR TO PROVIDE FEEDBACK.

&&

.CLIMATE...
             RECORDS
SITE DATE    HI_MAX:YEAR LO_MAX:YEAR HI_MIN:YEAR LO_MIN:YEAR

KFAT 05-09      101:2001     57:1922     66:2001     39:1922
KFAT 05-10       99:1993     60:1933     66:1931     41:1922
KFAT 05-11      100:2001     62:1900     70:1987     40:1909

KBFL 05-09      101:2001     58:1922     68:2001     35:1918
KBFL 05-10      102:1941     61:1918     69:1909     38:1922
KBFL 05-11      103:1934     63:1956     69:1969     38:1918
&&

.HNX WATCHES/WARNINGS/ADVISORIES...
WIND ADVISORY FROM 11 AM THIS MORNING TO 11 PM PDT SATURDAY
CAZ095-098-099.

&&

PUBLIC...JDB
AVN/FW...SANGER
SYNOPSIS...SANGER

WEATHER.GOV/HANFORD
Hazardous weather outlook, May 8, 1:03 PM PST, 23 hours 57 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
203 PM PDT THU MAY 8 2014

CAZ095-098-099-082215-
KERN COUNTY MOUNTAINS-INDIAN WELLS VALLEY-
SOUTHEASTERN KERN COUNTY DESERT-
203 PM PDT THU MAY 8 2014

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE KERN COUNTY MOUNTAINS
AND DESERT.

...WIND ADVISORY ISSUED...

.DAY ONE...THIS AFTERNOON AND TONIGHT

NO HAZARDOUS WEATHER EXPECTED.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

* WIND ADVISORY ISSUED SEE /SFONPWHNX/ FOR DETAILS.

* STAY TUNED TO NOAA WEATHER RADIO...OR YOUR FAVORITE NEWS
  SOURCE...FOR FURTHER INFORMATION.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT OR
UNUSUAL CONDITIONS TO THE NATIONAL WEATHER SERVICE.

In the hours before

Local storm report, May 9, 11:41 AM PST, 1 hour 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HANFORD CA
1241 PM PDT FRI MAY 9 2014

...TIME...  ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
...DATE...  ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1135 AM     NON-TSTM WND GST 2 NE MOJAVE             35.07N 118.15W
05/09/2014  M45 MPH          KERN               CA   AWOS

            AWOS STATION MOJAVE AIRPORT /MHV/

&&

NWS HANFORD CA
IRIS SYSTEM
Local storm report, May 9, 11:42 AM PST, 1 hour 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HANFORD CA
1242 PM PDT FRI MAY 9 2014

...TIME...  ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
...DATE...  ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1155 AM     NON-TSTM WND GST 3 SSW NORTH EDWARDS     34.98N 117.85W
05/09/2014  M46 MPH          KERN               CA   ASOS

            ASOS STATION NORTH EDWARDS /9L2/

&&

NWS HANFORD CA
IRIS SYSTEM
Local storm report, May 9, 11:43 AM PST, 1 hour 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HANFORD CA
1243 PM PDT FRI MAY 9 2014

...TIME...  ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
...DATE...  ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1147 AM     NON-TSTM WND GST 2 E MOJAVE              35.06N 118.15W
05/09/2014  M46 MPH          KERN               CA   MESONET

            MESONET STATION MOJAVE NAT TEST PILOT
            /AT407/

&&

NWS HANFORD CA
IRIS SYSTEM
Local storm report, May 9, 12:45 PM PST, 15 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HANFORD CA
145 PM PDT FRI MAY 9 2014

...TIME...  ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
...DATE...  ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0111 PM     NON-TSTM WND GST 5 NW MOJAVE             35.11N 118.24W
05/09/2014  M45 MPH          KERN               CA   MESONET

            MESONET STATION CACHE CREEK CHP /AU563/

&&

NWS HANFORD CA
IRIS SYSTEM

Event by event

3 high wind. Local standard time, as filed.

High Wind, Se Kern Cty Desert

When
May 9, 1:00 PM PST to May 10, 5:00 PM PST
Where
Se Kern Cty Desert forecast zone
Measured
78 kt (90 mph) measured gust
Reported by
Mesonet

High Wind, Kern Cty Mtns

When
May 9, 4:00 PM PST to May 10, 4:00 AM PST
Where
Kern Cty Mtns forecast zone
Measured
64 kt (74 mph) measured gust
Reported by
Mesonet

High Wind, Indian Wells Vly

When
May 9, 4:00 PM PST to May 10, 4:00 AM PST
Where
Indian Wells Vly forecast zone
Measured
64 kt (74 mph) measured gust
Reported by
Mesonet

What these are

High Wind
Sustained non-thunderstorm winds of 40 mph or more for an hour, or gusts of 58 mph or more.

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

The same day elsewhere

More

Every storm in California in 2014Every state in 2014This day in weather historyWarnings in California, May 2014

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: 510291, 510289, 510290.