Alert archive / California / Winter Storm Warnings in 2021

Winter Storm Warning 6, NWS Hanford, CA

December 11, 20216 counties in California

NWS Hanford, CA issued this winter storm warning at Dec 11, 2021, 1:19 PM PST for 6 counties in California. It took effect at Dec 13, 2021, 4:00 AM PST. It was in force for 44 hr. 31 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Dec 11, 2021, 1:19 PM PST (21:19 UTC)
In effect from
Dec 13, 2021, 4:00 AM PST
Expired
Dec 15, 2021, 12:00 AM PST
In force
44 hr
Issued by
NWS Hanford, CA

Counties Fresno County, CA, Kern County, CA, Madera County, CA, Mariposa County, CA, Tulare County, CA, Tuolumne County, CA

The radar

The San Joaquin Valley radar (KHNX), 62 km from the middle of the area, began a volume at 21:21 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.

What was reported inside it

TimeReportWhereRemark
Dec 13, 8:00 AM PSTSNOW 5Tuolumne Meadows, CA
Dec 14, 1:28 PM PSTSNOW 602 E Pinecrest, CAREPORTED AT DODGE RIDGE SKI AREA: 60IN OF SNOW AT SUMMIT, 8200FT. CLOSE TO 4FT AT BASE, 6883FT.
Dec 14, 3:37 PM PSTHEAVY SNOW 52 Wsw Tehachapi, CA
Dec 14, 6:45 PM PSTHEAVY SNOW 24Ponderosa, CA
Dec 14, 10:00 PM PSTHEAVY SNOW 1910 E Johnsondale, CAPASCOES SNOTEL (9153 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 1922 Nne Cedar Grove, CABISHOP PASS SNOTEL (11972 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 19Giant Forest, CAGIANT FOREST SNOTEL (6650 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 2018 Ese Cedar Grove, CAUPPER TYNDALL CREEK SNOTEL (11443 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 248 Nw Hetch Hetchy, CALOWER KIBBIE RIDGE SNOTEL (6479 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 2522 Ne Ponderosa, CATUNNEL GUARD STATION SNOTEL (9000 FEET).
Dec 14, 10:00 PM PSTHEAVY SNOW 2610 Wsw Devils Postpile, CAGREENO MOUNTAIN SNOTEL (7900 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 266 Wsw Tuolumne Meadows, CATENAYA LAKE SNOTEL (8160 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 275 Sse Huntington Lake, CATAMARACK SUMMIT SNOTEL (7613 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 276 N El Portal, CAGIN FLAT SNOTEL (7201 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 277 Wnw Florence Lake, CAKAISER POINT SNOTEL (9131 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 281 Ese Huntington Lake, CAHUNTINGTON LAKE SNOTEL (7020 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 2915 N Camp Nelson, CAWET MEADOWS SNOTEL (9019 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 3122 E Lodgepole, CACRABTREE MEADOW SNOTEL (10700 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 317 Nne Bass Lake, CACHILKOOT MEADOW SNOTEL (7150 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 3210 Ne Hetch Hetchy, CAPARDISE MEADOW SNOTEL (7676 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 328 Sse Yosemite Valley, CAOSTRANDER LAKE SNOTEL (8264 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 334 Ene Lake Wishon, CAWEST WOODCHUCK MEADOW SNOTEL (9209 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 34Devils Postpile, CADEVEIL POSTPILE SNOTEL (8004 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 3512 Ene Lake Wishon, CABLACKCAP BASIN SNOTEL (10300 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 357 Ese Grant Grove, CABIG MEADOWS SNOTEL (7599 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 35Tuolumne Meadows, CATUOLUMNE MEADOWS SNOTEL (8600 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 3814 E Cedar Grove, CACHARLOTTE LAKE SNOTEL (11961 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 3917 Ese Lodgepole, CACHAGOOPA PLATEAU SNOTEL (9450 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 4411 Nne Cedar Grove, CASTATE LAKES SNOTEL (10419 FT).
Dec 14, 10:00 PM PSTHEAVY SNOW 4615 Sse Giant Forest, CAMITCHELL MEADOW SNOTEL (9900 FT).
Dec 14, 10:12 PM PSTHEAVY SNOW 72 W Tehachapi, CA

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Vandenberg AFB, CA (KVBG), launched 12:00Z, 9.3 hours before the alert went out and 254 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 2021-12-11Temperature 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 2021-12-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 25 square meters per square second.19395878Sfc1 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
1941 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
25 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

769 
WWUS46 KHNX 112119
WSWHNX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Hanford CA
119 PM PST Sat Dec 11 2021

CAZ323-326>330-120600-
/O.UPG.KHNX.WS.A.0008.211213T1200Z-211215T1200Z/
/O.NEW.KHNX.WS.W.0006.211213T1200Z-211215T0600Z/
Yosemite NP outside of the valley-Upper San Joaquin River-
Kaiser to Rodgers Ridge-Kings Canyon NP-Grant Grove Area-
Sequoia NP-
119 PM PST Sat Dec 11 2021

...WINTER STORM WARNING IN EFFECT FROM 4 AM MONDAY TO 10 PM PST
TUESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 2 to 3
  feet above 5,000 feet and up to 5 to 8 feet in the highest 
  elevations. Winds gusting as high as 45 mph.

* WHERE...Sierra Nevada from Yosemite National Park to Sequoia
  National Park.

* WHEN...From 4 AM Monday to 10 PM PST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1. Also, monitor the latest forecasts 
for updates on this situation.

&&

$$

CAZ331-120600-
/O.UPG.KHNX.WS.A.0008.211213T1200Z-211215T1200Z/
/O.NEW.KHNX.WS.W.0006.211213T1800Z-211215T0600Z/
South End of the Upper Sierra-
119 PM PST Sat Dec 11 2021

...WINTER STORM WARNING IN EFFECT FROM 10 AM MONDAY TO 10 PM PST
TUESDAY...

* WHAT...Heavy snow expected. Total snow accumulations up to 2
  feet above 5,000 feet and 3 to 4 feet in the highest elevations.
  Winds gusting as high as 45 mph.

* WHERE...South end of the upper Sierra Nevada, or areas south of
  Sequoia National Park.

* WHEN...From 10 AM Monday to 10 PM PST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1. Also, monitor the latest forecasts 
for updates on this situation.

&&

$$

BSO
12 follow-up statements
037 
WWUS46 KHNX 120540
WSWHNX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Hanford CA
940 PM PST Sat Dec 11 2021

CAZ323-326>330-121345-
/O.CON.KHNX.WS.W.0006.211213T1200Z-211215T0600Z/
Yosemite NP outside of the valley-Upper San Joaquin River-
Kaiser to Rodgers Ridge-Kings Canyon NP-Grant Grove Area-
Sequoia NP-
940 PM PST Sat Dec 11 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM MONDAY TO
10 PM PST TUESDAY...


* WHAT...Heavy snow expected. Total snow accumulations of 2 to 3
  feet above 5,000 feet and up to 5 to 8 feet in the highest 
  elevations. Winds gusting as high as 45 mph.

* WHERE...Sierra Nevada from Yosemite National Park to Sequoia
  National Park.

* WHEN...From 4 AM Monday to 10 PM PST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CAZ331-121345-
/O.CON.KHNX.WS.W.0006.211213T1800Z-211215T0600Z/
South End of the Upper Sierra-
940 PM PST Sat Dec 11 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM MONDAY TO
10 PM PST TUESDAY...

* WHAT...Heavy snow expected. Total snow accumulations up to 2 feet
  above 5,000 feet and 3 to 4 feet in the highest elevations. 
  Winds gusting as high as 45 mph.

* WHERE...South end of the upper Sierra Nevada, or areas south of
  Sequoia National Park.

* WHEN...From 10 AM Monday to 10 PM PST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
278 
WWUS46 KHNX 121331
WSWHNX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Hanford CA
531 AM PST Sun Dec 12 2021

CAZ323-326>330-122145-
/O.CON.KHNX.WS.W.0006.211213T1200Z-211215T0600Z/
Yosemite NP outside of the valley-Upper San Joaquin River-
Kaiser to Rodgers Ridge-Kings Canyon NP-Grant Grove Area-
Sequoia NP-
531 AM PST Sun Dec 12 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM MONDAY TO
10 PM PST TUESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 2 to 5
  feet above 5,000 feet and 6 to 8 feet possible over the highest
  elevations. Winds gusting as high as 65 mph.

* WHERE...Sierra Nevada from Yosemite National Park to Sequoia 
  National Park.

* WHEN...From 4 AM Monday to 10 PM PST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CAZ331-122145-
/O.CON.KHNX.WS.W.0006.211213T1800Z-211215T0600Z/
South End of the Upper Sierra-
531 AM PST Sun Dec 12 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM MONDAY TO
10 PM PST TUESDAY...

* WHAT...Heavy snow expected. Total snow accumulations up to 2
  feet above 5,000 feet and 3 to 4 feet possible in the highest 
  elevations. Winds gusting as high as 65 mph.

* WHERE...South end of the upper Sierra Nevada, or areas south 
  of Sequoia National Park.

* WHEN...From 10 AM Monday to 10 PM PST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
774 
WWUS46 KHNX 122040
WSWHNX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Hanford CA
1240 PM PST Sun Dec 12 2021

CAZ323-326>330-130500-
/O.CON.KHNX.WS.W.0006.211213T1200Z-211215T0600Z/
Yosemite NP outside of the valley-Upper San Joaquin River-
Kaiser to Rodgers Ridge-Kings Canyon NP-Grant Grove Area-
Sequoia NP-
1240 PM PST Sun Dec 12 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM MONDAY TO
10 PM PST TUESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 2 to 5 
  feet above 5,000 feet and 6 to 8 feet possible over the 
  highest elevations. Winds gusting as high as 65 mph.

* WHERE...Sierra Nevada from Yosemite National Park to Sequoia 
  National Park.

* WHEN...From 4 AM Monday to 10 PM PST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CAZ331-130500-
/O.CON.KHNX.WS.W.0006.211213T1800Z-211215T0600Z/
South End of the Upper Sierra-
1240 PM PST Sun Dec 12 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM MONDAY TO
10 PM PST TUESDAY...

* WHAT...Heavy snow expected. Total snow accumulations up to 2 
  feet above 5,000 feet and 3 to 4 feet possible in the highest 
  elevations. Winds gusting as high as 65 mph.

* WHERE...South end of the upper Sierra Nevada, or areas south 
  of Sequoia National Park.

* WHEN...From 10 AM Monday to 10 PM PST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. Gusty
  winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CAZ333>336-130500-
/O.NEW.KHNX.WS.A.0009.211214T1200Z-211215T0800Z/
Piute Walker Basin-Tehachapi-Grapevine-
Frazier Mountain Communities-
1240 PM PST Sun Dec 12 2021

...WINTER STORM WATCH IN EFFECT FROM LATE MONDAY NIGHT THROUGH
TUESDAY EVENING...

* WHAT...Heavy snow possible. Total snow accumulations up to 
  around one foot possible. In addition, around 1 to 2 inches of 
  snow accumulation are possible on Interstate 5 through the 
  Grapevine down to around 3,000 feet, with 2 to 3 inches possible
  on Tehachapi Pass along Highway 58. Winds could gust as high as
  50 mph.

* WHERE...Piute Mountains, Walker Basin, Tehachapi, Grapevine and
  Frazier Mountain Communities.

* WHEN...From late Monday night through Tuesday evening.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact the morning or evening
  commute. Gusty winds could bring down tree branches.

* ADDITIONAL DETAILS...Snow levels on Monday night at 6,500 to 
  7,000 feet and lower to around 3,000 feet by Tuesday evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$

BSO
299 
WWUS46 KHNX 130506
WSWHNX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Hanford CA
906 PM PST Sun Dec 12 2021

CAZ323-326>330-131415-
/O.CON.KHNX.WS.W.0006.211213T1200Z-211215T0600Z/
Yosemite NP outside of the valley-Upper San Joaquin River-
Kaiser to Rodgers Ridge-Kings Canyon NP-Grant Grove Area-
Sequoia NP-
906 PM PST Sun Dec 12 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM MONDAY TO
10 PM PST TUESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 2 to 5 
  feet above 5,000 feet and 6 to 8 feet possible over the 
  highest elevations. Winds gusting as high as 65 mph.

* WHERE...Sierra Nevada from Yosemite National Park to Sequoia 
  National Park.

* WHEN...From 4 AM Monday to 10 PM PST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CAZ331-131415-
/O.CON.KHNX.WS.W.0006.211213T1800Z-211215T0600Z/
South End of the Upper Sierra-
906 PM PST Sun Dec 12 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM MONDAY TO
10 PM PST TUESDAY...

* WHAT...Heavy snow expected. Total snow accumulations up to 2 
  feet above 5,000 feet and 3 to 4 feet possible in the highest 
  elevations. Winds gusting as high as 65 mph.

* WHERE...South end of the upper Sierra Nevada, or areas south 
  of Sequoia National Park.

* WHEN...From 10 AM Monday to 10 PM PST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CAZ333>336-131415-
/O.CON.KHNX.WS.A.0009.211214T1200Z-211215T0800Z/
Piute Walker Basin-Tehachapi-Grapevine-
Frazier Mountain Communities-
906 PM PST Sun Dec 12 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE MONDAY NIGHT
THROUGH TUESDAY EVENING...

* WHAT...Heavy snow possible. Total snow accumulations up to 
  around one foot possible. In addition, around 1 to 2 inches of 
  snow accumulation are possible on Interstate 5 through the 
  Grapevine down to around 3,000 feet, with 2 to 3 inches 
  possible on Tehachapi Pass along Highway 58. Winds could gust 
  as high as 50 mph.

* WHERE...Piute Mountains, Walker Basin, Tehachapi, Grapevine 
  and Frazier Mountain Communities.

* WHEN...From late Monday night through Tuesday evening.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning or evening 
  commute. Gusty winds could bring down tree branches.

* ADDITIONAL DETAILS...Snow levels on Monday night at 6,500 to 
  7,000 feet and lower to around 3,000 feet by Tuesday evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$
933 
WWUS46 KHNX 131421
WSWHNX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Hanford CA
621 AM PST Mon Dec 13 2021

CAZ323-326>330-132230-
/O.CON.KHNX.WS.W.0006.000000T0000Z-211215T0600Z/
Yosemite NP outside of the valley-Upper San Joaquin River-
Kaiser to Rodgers Ridge-Kings Canyon NP-Grant Grove Area-
Sequoia NP-
621 AM PST Mon Dec 13 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST
TUESDAY...

* WHAT...Heavy snow expected. Total snow accumulations of 2 to 5 
  feet above 5,000 feet and 6 to 8 feet possible over the 
  highest elevations. Winds gusting as high as 65 mph.

* WHERE...Sierra Nevada from Yosemite National Park to Sequoia 
  National Park.

* WHEN...From 4 AM Monday to 10 PM PST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CAZ331-132230-
/O.CON.KHNX.WS.W.0006.211213T1800Z-211215T0600Z/
South End of the Upper Sierra-
621 AM PST Mon Dec 13 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING
TO 10 PM PST TUESDAY...

* WHAT...Heavy snow expected. Total snow accumulations up to 2 
  feet above 5,000 feet and 3 to 4 feet possible in the highest 
  elevations. Winds gusting as high as 65 mph.

* WHERE...South end of the upper Sierra Nevada, or areas south 
  of Sequoia National Park.

* WHEN...From 10 AM Monday to 10 PM PST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CAZ333>336-132230-
/O.CON.KHNX.WS.A.0009.211214T1200Z-211215T0800Z/
Piute Walker Basin-Tehachapi-Grapevine-
Frazier Mountain Communities-
621 AM PST Mon Dec 13 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY EVENING...

* WHAT...Heavy snow possible. Total snow accumulations up to 
  around one foot possible. In addition, around 1 to 2 inches of 
  snow accumulation are possible on Interstate 5 through the 
  Grapevine down to around 3,000 feet, with 2 to 3 inches 
  possible on Tehachapi Pass along Highway 58. Winds could gust 
  as high as 50 mph.

* WHERE...Piute Mountains, Walker Basin, Tehachapi, Grapevine 
  and Frazier Mountain Communities.

* WHEN...From late Monday night through Tuesday evening.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning or evening 
  commute. Gusty winds could bring down tree branches.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$
Dudley
953 
WWUS46 KHNX 132226
WSWHNX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Hanford CA
226 PM PST Mon Dec 13 2021

CAZ333-334-336-140630-
/O.UPG.KHNX.WS.A.0009.211214T1200Z-211215T0800Z/
/O.EXB.KHNX.WS.W.0006.211214T1200Z-211215T0800Z/
Piute Walker Basin-Tehachapi-Frazier Mountain Communities-
226 PM PST Mon Dec 13 2021

...WINTER STORM WARNING IN EFFECT FROM 4 AM TUESDAY TO MIDNIGHT
PST TUESDAY NIGHT...

* WHAT...Heavy snow expected. Total snow accumulations of 1 to 3
  feet above 6,500 feet. For Tehachapi Pass including the town of
  Tehachapi, total snow accumulations of 3 to 6 inches. Winds 
  gusting as high as 50 mph.

* WHERE...Piute Walker Basin, Tehachapi and Frazier Mountain 
  Communities Counties.

* WHEN...From 4 AM Tuesday to Midnight PST Tuesday night.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning or evening 
  commute. Gusty winds could bring down tree branches.

* ADDITIONAL DETAILS...Snow levels will fall to 3,500 feet by late
  Tuesday morning, with snow impacting Tehachapi Pass by Tuesday
  afternoon. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CAZ323-326>331-140630-
/O.CON.KHNX.WS.W.0006.000000T0000Z-211215T0600Z/
Yosemite NP outside of the valley-Upper San Joaquin River-
Kaiser to Rodgers Ridge-Kings Canyon NP-Grant Grove Area-
Sequoia NP-South End of the Upper Sierra-
226 PM PST Mon Dec 13 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST
TUESDAY...

* WHAT...Heavy snow expected. For Sequoia National Park to 
  Yosemite National Park, total snow accumulations of 2 to 5 feet 
  above 5,000 feet and 6 to 8 feet possible over the highest 
  elevations. For the South end of the Sierra, total snow 
  accumulations up to 2 feet above 5,000 feet and 3 to 4 feet 
  possible in the highest elevations. Winds gusting as high as 65 
  mph.

* WHERE...Sierra Nevada from Yosemite National Park through the
  south end of the Sierra.

* WHEN...Until 10 PM PST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CAZ335-140630-
/O.UPG.KHNX.WS.A.0009.211214T1200Z-211215T0800Z/
/O.NEW.KHNX.WW.Y.0013.211214T1800Z-211215T0800Z/
Grapevine-
226 PM PST Mon Dec 13 2021

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM TUESDAY TO
MIDNIGHT PST TUESDAY NIGHT...

* WHAT...Snow expected. Total snow accumulations one to three 
  inches. Winds gusting as high as 45 mph.

* WHERE...Grapevine, including the town of Lebec.

* WHEN...From 10 AM Tuesday to Midnight PST Tuesday night.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact the morning or evening commute. Gusty
  winds could bring down tree branches and cause blowing snow and
  low visiblities. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CMc
756 
WWUS46 KHNX 140640
WSWHNX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Hanford CA
1040 PM PST Mon Dec 13 2021

CAZ323-326>331-141200-
/O.CON.KHNX.WS.W.0006.000000T0000Z-211215T0600Z/
Yosemite NP outside of the valley-Upper San Joaquin River-
Kaiser to Rodgers Ridge-Kings Canyon NP-Grant Grove Area-
Sequoia NP-South End of the Upper Sierra-
1040 PM PST Mon Dec 13 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST
TUESDAY...

* WHAT...Heavy snow expected. For Sequoia National Park to 
  Yosemite National Park, total snow accumulations of 2 to 5 feet 
  above 5,000 feet and 6 to 8 feet possible over the highest 
  elevations. For the South end of the Sierra, total snow 
  accumulations up to 2 feet above 5,000 feet and 3 to 4 feet 
  possible in the highest elevations. Winds gusting as high as 65 
  mph.

* WHERE...Sierra Nevada from Yosemite National Park through the
  south end of the Sierra.

* WHEN...Until 10 PM PST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. Gusty
  winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CAZ333-334-336-141200-
/O.CON.KHNX.WS.W.0006.211214T1200Z-211215T0800Z/
Piute Walker Basin-Tehachapi-Frazier Mountain Communities-
1040 PM PST Mon Dec 13 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM TUESDAY TO
MIDNIGHT PST TUESDAY NIGHT...

* WHAT...Heavy snow expected. Total snow accumulations of 1 to 3
  feet above 6,500 feet. For Tehachapi Pass including the town of
  Tehachapi, total snow accumulations of 3 to 6 inches. Winds 
  gusting as high as 50 mph.

* WHERE...Piute Walker Basin, Tehachapi and Frazier Mountain 
  Communities Counties.

* WHEN...From 4 AM Tuesday to Midnight PST Tuesday night.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning or evening 
  commute. Gusty winds could bring down tree branches.

* ADDITIONAL DETAILS...Snow levels will fall to 3,500 feet by late
  Tuesday morning, with snow impacting Tehachapi Pass by Tuesday
  afternoon. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CAZ335-141200-
/O.CON.KHNX.WW.Y.0013.211214T1800Z-211215T0800Z/
Grapevine-
1040 PM PST Mon Dec 13 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM TUESDAY
TO MIDNIGHT PST TUESDAY NIGHT...

* WHAT...Snow expected. Total snow accumulations one to three 
  inches. Winds gusting as high as 45 mph.

* WHERE...Grapevine, including the town of Lebec.

* WHEN...From 10 AM Tuesday to Midnight PST Tuesday night.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact the morning or evening commute. Gusty
  winds could bring down tree branches and cause blowing snow and
  low visiblities. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
917 
WWUS46 KHNX 141145
WSWHNX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Hanford CA
345 AM PST Tue Dec 14 2021

CAZ323-326>331-141945-
/O.CON.KHNX.WS.W.0006.000000T0000Z-211215T0600Z/
Yosemite NP outside of the valley-Upper San Joaquin River-
Kaiser to Rodgers Ridge-Kings Canyon NP-Grant Grove Area-
Sequoia NP-South End of the Upper Sierra-
345 AM PST Tue Dec 14 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING...

* WHAT...Heavy snow expected. For Sequoia National Park to 
  Yosemite National Park, total snow accumulations of 2 to 5 
  feet above 5,000 feet and 6 to 8 feet possible over the 
  highest elevations. For the South end of the Sierra, total 
  snow accumulations up to 2 feet above 5,000 feet and 3 to 4 
  feet possible in the highest elevations. Winds gusting as high 
  as 65 mph.

* WHERE...Sierra Nevada from Yosemite National Park through the 
  south end of the Sierra.

* WHEN...Until 10 PM PST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. Gusty 
  winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CAZ333-334-336-141945-
/O.CON.KHNX.WS.W.0006.211214T1200Z-211215T0800Z/
Piute Walker Basin-Tehachapi-Frazier Mountain Communities-
345 AM PST Tue Dec 14 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PST
TONIGHT...

* WHAT...Heavy snow expected. Total snow accumulations of 1 to 3 
  feet above 6,500 feet. For Tehachapi Pass including the town 
  of Tehachapi, total snow accumulations of 3 to 6 inches. Winds 
  gusting as high as 50 mph.

* WHERE...Piute Walker Basin, Tehachapi and Frazier Mountain 
  Communities Counties.

* WHEN...From 4 AM Tuesday to Midnight PST Tuesday night.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning or evening 
  commute. Gusty winds could bring down tree branches.

* ADDITIONAL DETAILS...Snow levels will fall to 3,500 feet by 
  late Tuesday morning, with snow impacting Tehachapi Pass by 
  Tuesday afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CAZ335-141945-
/O.CON.KHNX.WW.Y.0013.211214T1800Z-211215T0800Z/
Grapevine-
345 AM PST Tue Dec 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO MIDNIGHT PST TONIGHT...

* WHAT...Snow expected. Total snow accumulations one to three 
  inches. Winds gusting as high as 45 mph.

* WHERE...Grapevine, including the town of Lebec.

* WHEN...From 10 AM Tuesday to Midnight PST Tuesday night.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute. Gusty 
  winds could bring down tree branches and cause blowing snow 
  and low visiblities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

DCH
743 
WWUS46 KHNX 141929
WSWHNX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Hanford CA
1129 AM PST Tue Dec 14 2021

CAZ323-326>331-150330-
/O.CON.KHNX.WS.W.0006.000000T0000Z-211215T0600Z/
Yosemite NP outside of the valley-Upper San Joaquin River-
Kaiser to Rodgers Ridge-Kings Canyon NP-Grant Grove Area-
Sequoia NP-South End of the Upper Sierra-
1129 AM PST Tue Dec 14 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING...

* WHAT...Heavy snow expected. For Sequoia National Park to 
  Yosemite National Park, total snow accumulations of 2 to 5 
  feet above 5,000 feet and 6 to 8 feet possible over the 
  highest elevations. For the South end of the Sierra, total 
  snow accumulations up to 2 feet above 5,000 feet and 3 to 4 
  feet possible in the highest elevations. Winds gusting as high 
  as 65 mph.

* WHERE...Sierra Nevada from Yosemite National Park through the 
  south end of the Sierra.

* WHEN...Until 10 PM PST Tuesday.

* IMPACTS...Travel could be very difficult to impossible. Gusty
  winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CAZ333-334-336-150330-
/O.CON.KHNX.WS.W.0006.000000T0000Z-211215T0800Z/
Piute Walker Basin-Tehachapi-Frazier Mountain Communities-
1129 AM PST Tue Dec 14 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PST
TONIGHT...

* WHAT...Heavy snow expected. Total snow accumulations of 1 to 3 
  feet above 6,500 feet. For Tehachapi Pass including the town 
  of Tehachapi, total snow accumulations of 3 to 6 inches. Winds 
  gusting as high as 50 mph.

* WHERE...Piute Walker Basin, Tehachapi and Frazier Mountain 
  Communities Counties.

* WHEN...Until Midnight PST tonight.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning or evening 
  commute. Gusty winds could bring down tree branches.

* ADDITIONAL DETAILS...Snow levels will fall to 3,500 feet by 
  late Tuesday morning, with snow impacting Tehachapi Pass by 
  Tuesday afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CAZ335-150330-
/O.CON.KHNX.WW.Y.0013.000000T0000Z-211215T0800Z/
Grapevine-
1129 AM PST Tue Dec 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PST
TONIGHT...

* WHAT...Snow expected. Total snow accumulations one to three 
  inches. Winds gusting as high as 45 mph.

* WHERE...Grapevine, including the town of Lebec.

* WHEN...From 10 AM Tuesday to Midnight PST Tuesday night.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact the morning or evening commute. Gusty
  winds could bring down tree branches and cause blowing snow and
  low visiblities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
760 
WWUS46 KHNX 142034
WSWHNX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Hanford CA
1234 PM PST Tue Dec 14 2021

CAZ323-326>328-150600-
/O.NEW.KHNX.WS.A.0010.211216T0600Z-211216T2100Z/
/O.CON.KHNX.WS.W.0006.000000T0000Z-211215T0600Z/
Yosemite NP outside of the valley-Upper San Joaquin River-
Kaiser to Rodgers Ridge-Kings Canyon NP-
1234 PM PST Tue Dec 14 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING...
...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH
THURSDAY AFTERNOON...

* WHAT...For the Winter Storm Warning, heavy snow. Additional snow
  accumulations of 5 to 10 inches. For the Winter Storm Watch,
  heavy snow possible. Total snow accumulations of one to two feet
  possible, mainly above 5,000 feet. Winds could gust as high as 
  40 mph.

* WHERE...Yosemite NP outside of the valley, Upper San Joaquin 
  River, Kaiser to Rodgers Ridge and Kings Canyon NP Counties.

* WHEN...For the Winter Storm Warning, until 10 PM PST this 
  evening. For the Winter Storm Watch, from Wednesday evening 
  through Thursday afternoon.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact the morning or evening
  commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

Monitor the latest forecasts for updates on this situation. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CAZ333-334-336-150600-
/O.CON.KHNX.WS.W.0006.000000T0000Z-211215T0800Z/
Piute Walker Basin-Tehachapi-Frazier Mountain Communities-
1234 PM PST Tue Dec 14 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PST
TONIGHT...

* WHAT...Heavy snow. Additional snow accumulations of up to 12 
  inches. Winds gusting as high as 35 mph.

* WHERE...Piute Walker Basin, Frazier Mountain Communities and 
  Tehachapi Counties.

* WHEN...Until midnight PST tonight.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CAZ329>331-150600-
/O.CON.KHNX.WS.W.0006.000000T0000Z-211215T0600Z/
Grant Grove Area-Sequoia NP-South End of the Upper Sierra-
1234 PM PST Tue Dec 14 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING...

* WHAT...Heavy snow. Additional snow accumulations of up to 16 
  inches. Winds gusting as high as 40 mph.

* WHERE...Sequoia NP, South End of the Upper Sierra and Grant 
  Grove Area Counties.

* WHEN...Until 10 PM PST this evening.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CAZ335-150600-
/O.CON.KHNX.WW.Y.0013.000000T0000Z-211215T0800Z/
Grapevine-
1234 PM PST Tue Dec 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PST
TONIGHT...

* WHAT...Snow. Snow accumulations of 1 to 3 inches. Winds gusting
  as high as 35 mph.

* WHERE...Grapevine, including the town of Lebec.

* WHEN...Until midnight PST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous
  conditions could impact the morning or evening commute. Gusty
  winds could bring down tree branches and cause blowing snow and
  low visiblities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

BSO
000 
WWUS46 KHNX 150547
WSWHNX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Hanford CA
947 PM PST Tue Dec 14 2021

CAZ323-326>328-151400-
/O.EXP.KHNX.WS.W.0006.000000T0000Z-211215T0600Z/
/O.CON.KHNX.WS.A.0010.211216T0600Z-211216T2100Z/
Yosemite NP outside of the valley-Upper San Joaquin River-
Kaiser to Rodgers Ridge-Kings Canyon NP-
947 PM PST Tue Dec 14 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING
THROUGH THURSDAY AFTERNOON...
...WINTER STORM WARNING WILL EXPIRE AT 10 PM PST THIS EVENING...

* WHAT...Heavy snow possible. Total snow accumulations of 6 to 
  20 inches possible. Winds could gust as high as 40 mph.

* WHERE...Yosemite NP outside of the valley, Upper San Joaquin 
  River, Kaiser to Rodgers Ridge and Kings Canyon NP Counties.

* WHEN...For the Winter Storm Warning, until 10 PM PST this 
  evening. For the Winter Storm Watch, from Wednesday evening 
  through Thursday afternoon.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning or evening 
  commute. The cold wind chills as low as 25 below zero could 
  cause frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation. 

&&

$$

CAZ329>331-150700-
/O.EXP.KHNX.WS.W.0006.000000T0000Z-211215T0600Z/
Grant Grove Area-Sequoia NP-South End of the Upper Sierra-
947 PM PST Tue Dec 14 2021

...WINTER STORM WARNING WILL EXPIRE AT 10 PM PST THIS EVENING...

Widespread precipitation has ended over the area.

$$

CAZ333-334-336-150800-
/O.CON.KHNX.WS.W.0006.000000T0000Z-211215T0800Z/
Piute Walker Basin-Tehachapi-Frazier Mountain Communities-
947 PM PST Tue Dec 14 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PST
TONIGHT...

* WHAT...Heavy snow. Additional snow accumulations of up to 12 
  inches. Winds gusting as high as 35 mph.

* WHERE...Piute Walker Basin, Frazier Mountain Communities and 
  Tehachapi Counties.

* WHEN...Until midnight PST tonight.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the evening commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

CAZ335-150800-
/O.CON.KHNX.WW.Y.0013.000000T0000Z-211215T0800Z/
Grapevine-
947 PM PST Tue Dec 14 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PST
TONIGHT...

* WHAT...Snow. Snow accumulations of 1 to 3 inches. Winds 
  gusting as high as 35 mph.

* WHERE...Grapevine, including the town of Lebec.

* WHEN...Until midnight PST tonight.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the morning or evening commute. Gusty 
  winds could bring down tree branches and cause blowing snow 
  and low visiblities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$
994 
WWUS46 KHNX 150755
WSWHNX

URGENT - WINTER WEATHER MESSAGE
National Weather Service Hanford CA
1155 PM PST Tue Dec 14 2021

CAZ333-334-336-150900-
/O.EXP.KHNX.WS.W.0006.000000T0000Z-211215T0800Z/
Piute Walker Basin-Tehachapi-Frazier Mountain Communities-
1155 PM PST Tue Dec 14 2021

...WINTER STORM WARNING WILL EXPIRE AT MIDNIGHT PST TONIGHT...

The Winter Storm Warning has been allowed to expire at Midnight
across the Kern County Mountains. Lingering showers will amount to
light accumulation.

$$

CAZ335-150900-
/O.EXP.KHNX.WW.Y.0013.000000T0000Z-211215T0800Z/
Grapevine-
1155 PM PST Tue Dec 14 2021

...WINTER WEATHER ADVISORY WILL EXPIRE AT MIDNIGHT PST TONIGHT...

The Winter Weather Advisory has been allowed to expire at 
Midnight across the Grapevine area.

$$

CAZ323-326>328-151700-
/O.CON.KHNX.WS.A.0010.211216T0600Z-211216T2100Z/
Yosemite NP outside of the valley-Upper San Joaquin River-
Kaiser to Rodgers Ridge-Kings Canyon NP-
1155 PM PST Tue Dec 14 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING
THROUGH THURSDAY AFTERNOON...

* WHAT...Heavy snow possible. Total snow accumulations of 6 to 
  20 inches possible. Winds could gust as high as 40 mph.

* WHERE...Yosemite NP outside of the valley, Upper San Joaquin 
  River, Kaiser to Rodgers Ridge and Kings Canyon NP Counties.

* WHEN...For the Winter Storm Warning, until 10 PM PST this 
  evening. For the Winter Storm Watch, from Wednesday evening 
  through Thursday afternoon.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning or evening 
  commute. The cold wind chills as low as 25 below zero could 
  cause frostbite on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts for updates on this situation.

&&

$$

Molina

What forecasters said that day

The local office's own words before this winter storm 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 winter storm warning went out at Dec 11, 4:02 AM PST, 9 hours 17 minutes earlier.

Area forecast discussion, Dec 11, 4:02 AM PST, 9 hours 17 minutes before
Area Forecast Discussion
National Weather Service Hanford CA
402 AM PST Sat Dec 11 2021

.SYNOPSIS...Dry and cool conditions will prevail today. Sub
freezing conditions are likely in the Kern Desert again tonight.
A slow moving storm system may bring significant precipitation
from late Sunday night through Tuesday evening. Another storm is
expected to bring additional precipitation to the area on
Thursday.

&&

.DISCUSSION...A cold northwest flow ahead of a high pressure
center off the CA coast is providing for the coldest temperature
readings in the San Joaquin Valley and Kern County Deserts in
almost 10 months. Temperatures across the Kern County Deserts
have already plunged below 28 Deg F at several stations and the
Hard Freeze Warning that had been issued for the Mojave Desert and
the Indian Wells Valley should easily verify this morning. Across
the San Joaquin Valley, temperatures have already dropped into
the mid 30s at several stations and are expected to drop below the
freezing mark by daybreak. As a result, much of the San Joaquin
valley is expected to have it's first freeze of the season. Skies
are mainly clear across our area with some thin high clouds noted
by satellite imagery. The fog loop is showing a narrow strip of
fog from Fresno southward through far western Tulare County, but
the fog will be localized this morning due to the prevailing dry
airmass.

Following a mostly sunny and relatively cold day today, the flow
aloft is progged to shift from northwest to west tonight and
mid/high clouds will increase from north to south as a strong
storm drops southward out of the Gulf of AK and takes aim at
central CA. The increased clouds will result in temperatures
tonight remaining above the freezing mark at most locations.
However, the Kern County Deserts are expected to remain mainly
clear with light winds. This will allow for good radiational
cooling to take place once again and another night of temperatures
below 28 Deg F is possible. A Hard Freeze Watch remains in effect
for the Kern County Deserts for tonight and Sunday morning.

The storm is progged to deepen off the PAC NW coast on Sunday
which will push precipitation southward into central CA during
the day. Precipitation will be possible from Fresno northward by
Sunday afternoon with the snow level between 5000 and 6000 feet.
The precipitation is expected to push further southward on Sunday
night and become more widespread across our area by Monday
morning. A very wet period is expected across our area Monday
through Tuesday evening. Latest QPF progs are indicating 1 to 2
inches of rain across most of the San Joaquin Valley during this
time frame. Between 2 and 5 inches of rain is expected over the
Sierra foothills and 3 to 7 inches of liquid precipitation across
the higher Sierra Nevada. Heavy snowfall is expected above 5000
feet and several feet of new snow are likely above 7000 feet. A
Winter Storm Watch remains in effect for the higher Sierra Nevada
between Monday morning and Wednesday morning. Significant
precipitation is also expected across the Kern County Mountains
and Deserts with 1 to 2 inches of liquid precipitation in the Kern
County Mountains and a half inch to an inch of rainfall in the
Deserts. Snow levels are expected to remain above the major passes
in Kern County until Tuesday evening, but some light snowfall is
possible on the passes late Tuesday evening.

The slow moving storm is expected to move out of our area on
Wednesday. Another storm is progged by the medium range models to
move through central CA on Thursday bringing additional
precipitation to our area. The medium range ensemble means are
indicating that this system will move out of our area on Friday
and high pressure will bring drier conditions to our area next
weekend.

&&

.AVIATION...In the San Joaquin Valley, areas of MVFR and local IFR
visibility in mist and haze through 20Z Sat. Otherwise, VFR
conditions will prevail across the central CA interior for the
next 24 hours.

&&

.AIR QUALITY ISSUES...On Saturday December 11 2021...
Fireplace/Wood Stove Burning Status is: No Burning Unless
Registered in Fresno... Kern... Madera and Tulare Counties.
Further information is available at Valleyair.org

&&

.CERTAINTY...

The level of certainty for days 1 and 2 is medium.
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.html for additional information
an/or to provide feedback.

&&

.HNX WATCHES/WARNINGS/ADVISORIES...
Hard Freeze Warning until 9 AM PST this morning for CAZ337-339.

Hard Freeze Watch from this evening through Sunday morning for
CAZ337-339.

Winter Storm Watch from late Sunday night through late Tuesday
night for CAZ323-326>331.

Freeze Warning until 9 AM PST this morning for CAZ301>303-305-
306-309>312-315-316.

&&

public...DS
aviation....DCH

weather.gov/hanford

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 11, 8:48 AM PSTHard Freeze WarningHNXKern24 hr

Nearby

Winter Storm Warnings in California, 2021Every winter storm warning in 2021

Sources

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