Alert archive / California / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 10, NWS Hanford, CA

April 27, 2016Kern County, California

NWS Hanford, CA issued this severe thunderstorm warning at Apr 27, 2016, 4:20 PM PDT for Kern County, California. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Apr 27, 2016, 4:20 PM PDT (23:20 UTC)
Expired
Apr 27, 2016, 4:47 PM PDT
In force
27 min
Issued by
NWS Hanford, CA
Area
Storm-based polygon

County Kern County, CA

The radar

The Edwards AFB radar (KEYX), 110 km from the middle of the area, began a volume at 23:21 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 nearest sounding before it

Vandenberg AFB, CA (KVBG), launched 12:00Z, 11.3 hours before the alert went out and 175 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Vandenberg AFB, CA at 12:00Z on 2016-04-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Vandenberg AFB, CA at 12:00Z on 2016-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -62 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1289 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
-62 m²/s²
0-3 km storm-relative helicity
22 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, 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 this severe thunderstorm warning went out at Apr 27, 1:28 PM PDT, 2 hours 52 minutes earlier.

Area forecast discussion, Apr 27, 1:28 PM PDT, 2 hours 52 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
128 PM PDT WED APR 27 2016

.SYNOPSIS...
RAINSHOWERS AND THUNDERSTORMS WILL MOVE THROUGH CENTRAL CALIFORNIA
THIS AFTERNOON AND INTO THE EVENING. HEAVY
RAIN...LIGHTNING...GUDTYWINDS AND HAIL IS POSSIBLE WITH THE
THNDERSTORMS. WHEN THUNDER ROARS, GO INDOORS. SKIES WILL CLEAR BY
THURSDAY AS WEAK HIGH PRESSURE MOVES IN OVER THE REGION.

&&

.DISCUSSION...SATELLITE IMAGERY SHOWS THE CENTER OF THE INCOMING
LOW PRESSURE SYSTEM MOVING SOUTHEAST ACROSS WINE COUNTRY AND RADAR
INDICATES THE LEADING EDGE OF SHOWERS AND THUNDERSTORMS NOW
APPROACHING MERCED COUNTY FROM THE NORTHWEST. BASED ON TRAJECTORY
OF CURRENT ECHOES COMBINED WITH THE HIGH RESOLUTION RAPID REFRESH
MODEL'S HOURLY FORECASTS, THIS BAND OF PRECIPITATION WILL MOVE
SOUTHEAST ACROSS THE SAN JOAQUIN VALLEY PORTION OF THE FORECAST
AREA THIS AFTERNOON AND REACH KERN COUNTY BY LATE IN THE
AFTERNOON. MEANWHILE OVER THE SIERRA, AFTERNOON INSTABILITY IS ON
THE INCREASE DUE TO HEATING AND THE ADDED LIFT OF THE APPROACHING
SYSTEM. WINDS ARE BLOWING THROUGH THE TEHACHAPI PASS AND THE
ADJACENT MOJAVE AREA AND WILL CONTINUE THROUGH THE AFTERNOON AND
EVENING SO THE WIND ADVISORY WILL REMAIN IN PLACE.

EXPECT SCATTERED THUNDERSTORMS THROUGH THE EVENING AS THE
ENERGY OF THE INCOMING LOW CONTINUES. OVER KERN COUNTY THE BEST
CHANCES OF SHOWERS AND THUNDERSTORMS WILL BE IN THE EVENING AND
THEN LINGERING SHOWERS AND HIGH ELEVATION SNOW SHOWERS WILL
PERSIST THROUGH THE NIGHT.

FORECAST MODELS THEN MOVE THE LOW TO THE EAST ON THURSDAY HOWEVER
SOME WRAP AROUND FLOW WILL KEEP A THREAT OF SHOWERS IN THE SIERRA
AND KERN COUNTY MOUNTAINS. FOR FRIDAY, A RELATIVELY COOL AND DRY
NORTHERLY FLOW IS PROGGED BEFORE THE NEXT SYSTEM DROPS SOUTHWARD
INTO THE GREAT BASIN AS AN "INSIDE SLIDER" ON SATURDAY. THIS WILL
BRING ADDITIONAL SHOWERS TO THE SIERRA AND POSSIBLY THE EASTERN
PORTIONS OF THE KERN COUNTY DESERT IN WRAP AROUND MOISTURE ON
SUNDAY.

FOR NEXT WEEK, WEAK RIDGING IS PROGGED FOR EARLY IN THE WEEK FOR
DRY WEATHER WITH WITH ANOTHER TROUGH OF LOW PRESSURE AND SOME
PRECIPITATION CHANCES FOR LATE IN THE WEEK.

&&

.AVIATION...
INCREASING CLOUDINESS AND PRECIPITATION CHANCES THIS AFTERNOON WITH
IFR CONDITIONS POSSIBLE OVER THE SIERRA NEVADA DUE TO MOUNTAIN
OBSCURATIONS. MVFR CONDITIONS....WITH LOCAL IFR....DUE TO CIGS/VSBY
ARE POSSIBLE OVER THE SAN JOAQUIN VALLEY AND THE REMAINDER OF THE
CENTRAL CALIFORNIA INTERIOR IN SHOWERS AND ISOLATED THUNDERSTORMS
FROM THRU 06Z THUR. GUSTY WINDS BELOW THE PASSES OF THE KERN COUNTY
MOUNTAINS AND DESERT UNTIL 06Z THU.  OTHERWISE...VFR CONDITIONS WILL
PREVAIL OVER THE CENTRAL CALIFORNIA INTERIOR DURING 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 MEDIUM.

CERTAINTY LEVELS INCLUDE LOW...MEDIUM...AND HIGH. PLEASE VISIT
WWW.WEATHER.GOV/HNX/CERTAINTY.PHP FOR ADDITIONAL INFORMATION
AN/OR TO PROVIDE FEEDBACK.

&&

.HNX WATCHES/WARNINGS/ADVISORIES...
WIND ADVISORY UNTIL 10 PM PDT THIS EVENING CAZ095-098-099.

&&

PUBLIC...DUDLEY
AVN/FW...MV
SYNOPSIS...WP

WEATHER.GOV/HANFORD

In the hours before

Special weather statement, Apr 27, 3:29 PM PDT, 51 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY CA
329 PM PDT WED APR 27 2016

CAZ089-091-272315-
WEST-CENTRAL SAN JOAQUIN VALLEY CA-
SOUTHWESTERN SAN JOAQUIN VALLEY CA-
329 PM PDT WED APR 27 2016

THE NATIONAL WEATHER SERVICE IN HANFORD CA HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
 NORTH CENTRAL KINGS AND CENTRAL FRESNO COUNTIES
 UNTIL 415 PM PDT

AT 328 PM PDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
NEAR LANARE...OR 20 MILES NORTHWEST OF HANFORD...MOVING SOUTHEAST AT
20 MPH.

NICKEL SIZE HAIL AND WIND GUSTS UP TO 50 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
LEMOORE...LANARE...ARMONA...RIVERDALE...LATON...LEMOORE NAS AND
CARUTHERS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3640 12010 3657 12002 3649 11963 3618 11978
TIME...MOT...LOC 2228Z 290DEG 16KT 3647 11998

SROWE
Special weather statement, Apr 27, 3:32 PM PDT, 48 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY CA
332 PM PDT WED APR 27 2016

CAZ091-095-272315-
KERN COUNTY MOUNTAINS CA-SOUTHWESTERN SAN JOAQUIN VALLEY CA-
332 PM PDT WED APR 27 2016

THE NATIONAL WEATHER SERVICE IN HANFORD CA HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
 WEST CENTRAL KERN COUNTY
 UNTIL 415 PM PDT

AT 331 PM PDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 11
MILES WEST OF DERBY ACRES...OR 41 MILES NORTHEAST OF SANTA MARIA...
MOVING EAST AT 20 MPH.

NICKEL SIZE HAIL AND WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE...
TAFT...FORD CITY...DERBY ACRES...MCKITTRICK...TAFT HEIGHTS...SOUTH TAFT
AND VALLEY ACRES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

&&

LAT...LON 3507 11949 3509 11950 3509 11956 3518 11956
      3518 11967 3526 11967 3526 11980 3533 11981
      3529 11940 3507 11947
TIME...MOT...LOC 2231Z 290DEG 16KT 3523 11980

SROWE
Special weather statement, Apr 27, 3:37 PM PDT, 43 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY CA
337 PM PDT WED APR 27 2016

CAZ089>091-272315-
WEST-CENTRAL SAN JOAQUIN VALLEY CA-
SOUTHWESTERN SAN JOAQUIN VALLEY CA-EAST-
CENTRAL SAN JOAQUIN VALLEY CA-
337 PM PDT WED APR 27 2016

THE NATIONAL WEATHER SERVICE IN HANFORD CA HAS ISSUED A

SIGNIFICANT WEATHER ADVISORY FOR...
 CENTRAL KINGS...SOUTHWESTERN FRESNO AND SOUTHWESTERN MADERA COUNTIES
 UNTIL 415 PM PDT

AT 337 PM PDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR
CANTUA CREEK...OR 39 MILES SOUTHWEST OF FRESNO...MOVING EAST AT 20
MPH.

WINDS IN EXCESS OF 40 MPH WILL BE POSSIBLE WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE...
MADERA...KERMAN...MENDOTA...FIREBAUGH...PARKWOOD...TRANQUILLITY...CANTUA
CREEK...BIOLA...PARKSDALE...HURON...SAN JOAQUIN...PANOCHE ROAD...FIVE
POINTS AND TRANQUILITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.
LIGHTNING CAN STRIKE 15 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE
SHELTER INSIDE A BUILDING OR VEHICLE.

&&

LAT...LON 3621 12047 3684 12053 3695 11999 3612 11996
TIME...MOT...LOC 2237Z 280DEG 19KT 3643 12035

SROWE
Special weather statement, Apr 27, 3:55 PM PDT, 25 minutes before
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Local storm report, Apr 27, 4:08 PM PDT, 12 minutes before
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Special weather statement, Apr 27, 4:08 PM PDT, 12 minutes before
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  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
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  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
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      <p id="message2">
        Please try again in a few minutes.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

Everything else NWS Hanford, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 27, 3:33 AM PDTWind AdvisoryHNX18 hr
Apr 27, 1:00 PM PDTSpecial Weather StatementHNXMerced45 min
Apr 27, 1:22 PM PDTSpecial Weather StatementHNXMerced38 min
Apr 27, 2:06 PM PDTSpecial Weather StatementHNXFresno39 min
Apr 27, 2:45 PM PDTSpecial Weather StatementHNXKings45 min
Apr 27, 3:04 PM PDTSevere Thunderstorm WarningHNXFresno26 min
Apr 27, 3:29 PM PDTSpecial Weather StatementHNXKings46 min
Apr 27, 3:32 PM PDTSpecial Weather StatementHNX43 min
Apr 27, 3:37 PM PDTSpecial Weather StatementHNX38 min
Apr 27, 3:43 PM PDTSevere Thunderstorm WarningHNXKern, Kings47 min
Apr 27, 3:55 PM PDTSpecial Weather StatementHNXKings50 min
Apr 27, 4:08 PM PDTSpecial Weather StatementHNXKings37 min
Apr 27, 4:27 PM PDTSpecial Weather StatementHNXFresno48 min
Apr 27, 4:32 PM PDTSpecial Weather StatementHNXMerced43 min
Apr 27, 4:40 PM PDTSpecial Weather StatementHNXTulare50 min
Apr 27, 4:45 PM PDTSpecial Weather StatementHNXKern45 min

Nearby

Severe Thunderstorm Warnings in California, 2016Every severe thunderstorm warning in 2016

Sources

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