Winter Storm Warning 5, NWS Eureka, CA

786 
WWUS46 KEKA 031100
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
300 AM PST Sat Feb 3 2024

CAZ111-114-031900-
/O.CON.KEKA.WS.W.0005.240204T1200Z-240205T0000Z/
Northeastern Mendocino Interior-Northern Lake-
300 AM PST Sat Feb 3 2024

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM TO 4 PM PST 
SUNDAY ABOVE 3000 FEET...

* WHAT...Heavy snow expected above 3000 feet. Total snow 
  accumulations between 4 and 8 inches. Winds gusting as high as 40 
  mph.

* WHERE...Northeastern Mendocino Interior and Northern Lake.

* WHEN...From 4 AM to 4 PM PST Sunday.

* IMPACTS...Roads will likely become slippery and hazardous. Travel 
  could be very difficult.

* ADDITIONAL DETAILS...An inch or two of snow will be possible as 
  low as 2000 feet Sunday morning.

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.

&&

$$

CAZ107-108-031900-
/O.CON.KEKA.WS.W.0005.240204T1400Z-240205T1800Z/
Northern Trinity-Southern Trinity-
Including Hwy 3-Scott Mountain
300 AM PST Sat Feb 3 2024

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM SUNDAY TO 10 AM 
PST MONDAY ABOVE 3000 FEET...

* WHAT...Heavy snow expected Above 3000 feet. Total snow 
  accumulations between 8 and 15 inches. Winds gusting as high as 35 
  mph.

* WHERE...Trinity County.

* WHEN...From 6 AM Sunday to 10 AM PST Monday.

* IMPACTS...Portions of Highway 36, Highway 3 at Scott Mtn Summit 
  and Highway 299 at Buckhorn Summit will likely become slippery and 
  hazardous. Travel could be very difficult.

* ADDITIONAL DETAILS...2 to 3 inches of snow will be possible as low 
  as 2000 feet Sunday morning.

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.

&&

$$

CAZ115-031900-
/O.NEW.KEKA.WW.Y.0004.240204T0600Z-240204T1600Z/
Southern Lake-
Including Knobcone Camp and Cobb
300 AM PST Sat Feb 3 2024

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 8 AM 
PST SUNDAY ABOVE 2000 FT...

* WHAT...Wet snow expected Above 2000 ft. Total snow accumulations 
  between 1 and 3 inches. Winds gusting as high as 55 mph.

* WHERE...Southern Lake.

* WHEN...From 10 PM this evening to 8 AM PST Sunday.

* IMPACTS...Plan on slippery road conditions. Strong winds could 
  cause extensive damage to trees and power lines.

* ADDITIONAL DETAILS...Precip is expected to become rain during 
  Sunday morning, likely quickly melting snow accumulation.

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.

&&

$$

For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka

TDJ

514 
WWUS46 KEKA 031903
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
1103 AM PST Sat Feb 3 2024

CAZ115-040315-
/O.UPG.KEKA.WW.Y.0004.240204T0600Z-240204T1600Z/
/O.EXB.KEKA.WS.W.0005.240204T0800Z-240204T1800Z/
Southern Lake-
Including Cobb and Knobcone Camp
1103 AM PST Sat Feb 3 2024

...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM PST 
SUNDAY ABOVE 2000 FT...

* WHAT...Heavy wet snow expected Above 2000 ft. Total snow 
  accumulations 6 to 10 inches above 3000 feet and 1 to 4 inches 
  down to 2000 feet. Winds gusting as high as 45 mph.

* WHERE...Southern Lake.

* WHEN...From midnight tonight to 10 AM PST Sunday.

* IMPACTS...Roads, especially highway 175, will likely become slick 
  and hazardous. Highway 20 may also be impacted by heavy wet snow 
  Sunday morning with 1 to 4 inches of snowfall. Travel could be 
  very difficult. Gusty winds could bring down tree branches.

* ADDITIONAL DETAILS...Precipitation is expected to turn to rain by 
  late Sunday morning, likely quickly melting any snow accumulation.

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.

&&

$$

CAZ111-114-040315-
/O.EXT.KEKA.WS.W.0005.240204T0800Z-240205T0000Z/
Northeastern Mendocino Interior-Northern Lake-
1103 AM PST Sat Feb 3 2024

...WINTER STORM WARNING NOW IN EFFECT FROM MIDNIGHT TONIGHT TO 4 PM 
PST SUNDAY ABOVE 3000 FEET...

* WHAT...Heavy snow expected above 3000 feet. Total snow 
  accumulations between 6 and 15 inches. Winds gusting as high as 50 
  mph.

* WHERE...Northeastern Mendocino Interior and Northern Lake.

* WHEN...From midnight tonight to 4 PM PST Sunday.

* IMPACTS...Roads will likely become slippery and hazardous. Travel 
  could be very difficult.

* ADDITIONAL DETAILS...An inch or two of snow will be possible as 
  low as 2000 feet Sunday morning.

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.

&&

$$

CAZ107-108-040315-
/O.CON.KEKA.WS.W.0005.240204T1400Z-240205T1800Z/
Northern Trinity-Southern Trinity-
Including Hwy 3-Scott Mountain
1103 AM PST Sat Feb 3 2024

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM SUNDAY TO 10 AM 
PST MONDAY ABOVE 3000 FEET...

* WHAT...Heavy snow expected Above 3000 feet. Total snow 
  accumulations between 8 and 18 inches. Winds gusting as high as 35 
  mph.

* WHERE...Trinity County.

* WHEN...From 6 AM Sunday to 10 AM PST Monday.

* IMPACTS...Portions of Highway 36, Highway 3 at Scott Mtn Summit 
  and Highway 299 at Buckhorn Summit will likely become slippery and 
  hazardous. Travel could be very difficult.

* ADDITIONAL DETAILS...2 to 4 inches of snow will occur as low as 
  2000 feet Sunday morning. Snowfall below 3000 feet is forecast to 
  change over to rain or a mix of rain and snow during the afternoon 
  and evening on Sunday.

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.

&&

$$

For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka

DB

393 
WWUS46 KEKA 040303
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
703 PM PST Sat Feb 3 2024

CAZ111-114-041215-
/O.CON.KEKA.WS.W.0005.240204T0800Z-240205T0000Z/
Northeastern Mendocino Interior-Northern Lake-
703 PM PST Sat Feb 3 2024

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 4 
PM PST SUNDAY ABOVE 3000 FEET...

* WHAT...Heavy snow expected above 3000 feet. Total snow 
  accumulations between 6 and 15 inches. Winds gusting as high as 50 
  mph.

* WHERE...Northeastern Mendocino Interior and Northern Lake.

* WHEN...From midnight tonight to 4 PM PST Sunday.

* IMPACTS...Roads will likely become slippery and hazardous. Travel 
  could be very difficult.

* ADDITIONAL DETAILS...An inch or two of snow will be possible as 
  low as 2000 feet Sunday morning.

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.

&&

$$

CAZ115-041215-
/O.CON.KEKA.WS.W.0005.240204T0800Z-240204T1800Z/
Southern Lake-
Including Cobb and Knobcone Camp
703 PM PST Sat Feb 3 2024

...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 
10 AM PST SUNDAY ABOVE 2000 FT...

* WHAT...Heavy wet snow expected Above 2000 ft. Total snow 
  accumulations 6 to 10 inches above 3000 feet and 1 to 4 inches 
  down to 2000 feet. Winds gusting as high as 45 mph.

* WHERE...Southern Lake.

* WHEN...From midnight tonight to 10 AM PST Sunday.

* IMPACTS...Roads, especially highway 175, will likely become slick 
  and hazardous. Highway 20 may also be impacted by heavy wet snow 
  Sunday morning with 1 to 4 inches of snowfall. Travel could be 
  very difficult. Gusty winds could bring down tree branches.

* ADDITIONAL DETAILS...Precipitation is expected to turn to rain by 
  late Sunday morning, likely quickly melting any snow accumulation.

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.

&&

$$

CAZ107-108-041215-
/O.CON.KEKA.WS.W.0005.240204T1400Z-240205T1800Z/
Northern Trinity-Southern Trinity-
Including Hwy 3-Scott Mountain
703 PM PST Sat Feb 3 2024

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM SUNDAY TO 10 AM 
PST MONDAY ABOVE 3000 FEET...

* WHAT...Heavy snow expected Above 3000 feet. Total snow 
  accumulations between 8 and 18 inches. Winds gusting as high as 35 
  mph.

* WHERE...Trinity County.

* WHEN...From 6 AM Sunday to 10 AM PST Monday.

* IMPACTS...Portions of Highway 36, Highway 3 at Scott Mtn Summit 
  and Highway 299 at Buckhorn Summit will likely become slippery and 
  hazardous. Travel could be very difficult.

* ADDITIONAL DETAILS...2 to 4 inches of snow will occur as low as 
  2000 feet Sunday morning. Snowfall below 3000 feet is forecast to 
  change over to rain or a mix of rain and snow during the afternoon 
  and evening on Sunday.

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.

&&

$$

For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka

ZVS

459 
WWUS46 KEKA 041124
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
324 AM PST Sun Feb 4 2024

CAZ111-114-041930-
/O.CON.KEKA.WS.W.0005.000000T0000Z-240205T0000Z/
Northeastern Mendocino Interior-Northern Lake-
324 AM PST Sun Feb 4 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS 
AFTERNOON ABOVE 3000 FEET...

* WHAT...Heavy snow expected above 3000 feet. Total snow 
  accumulations between 6 and 15 inches. Winds gusting as high as 50 
  mph.

* WHERE...Northeastern Mendocino Interior and Northern Lake.

* WHEN...Until 4 PM PST this afternoon.

* IMPACTS...Roads will likely become slippery and hazardous. Travel 
  could be very difficult.

* ADDITIONAL DETAILS...An inch or two of snow will be possible as 
  low as 2000 feet Sunday morning.

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.

&&

$$

CAZ115-041800-
/O.CON.KEKA.WS.W.0005.000000T0000Z-240204T1800Z/
Southern Lake-
Including Knobcone Camp and Cobb
324 AM PST Sun Feb 4 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS 
MORNING ABOVE 2000 FT...

* WHAT...Heavy wet snow expected Above 2000 ft. Total snow 
  accumulations 6 to 10 inches above 3000 feet and 1 to 4 inches 
  down to 2000 feet. Winds gusting as high as 45 mph.

* WHERE...Southern Lake.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Roads, especially highway 175, will likely become slick 
  and hazardous. Highway 20 may also be impacted by heavy wet snow 
  Sunday morning with 1 to 4 inches of snowfall. Travel could be 
  very difficult. Gusty winds could bring down tree branches.

* ADDITIONAL DETAILS...Precipitation is expected to turn to rain by 
  late Sunday morning, likely quickly melting any snow accumulation.

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.

&&

$$

CAZ107-108-041930-
/O.CON.KEKA.WS.W.0005.240204T1400Z-240205T1800Z/
Northern Trinity-Southern Trinity-
Including Hwy 3-Scott Mountain
324 AM PST Sun Feb 4 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST MONDAY 
ABOVE 3000 FEET...

* WHAT...Heavy snow expected Above 3000 feet. Total snow 
  accumulations between 8 and 18 inches. Winds gusting as high as 35 
  mph.

* WHERE...Trinity County.

* WHEN...Until 10 AM PST Monday.

* IMPACTS...Portions of Highway 36, Highway 3 at Scott Mtn Summit 
  and Highway 299 at Buckhorn Summit will likely become slippery and 
  hazardous. Travel could be very difficult.

* ADDITIONAL DETAILS...2 to 4 inches of snow will occur as low as 
  2000 feet Sunday morning. Snowfall below 3000 feet is forecast to 
  change over to rain or a mix of rain and snow during the afternoon 
  and evening on Sunday.

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.

&&

$$

For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka

TDJ

709 
WWUS46 KEKA 041754
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
954 AM PST Sun Feb 4 2024

CAZ115-041900-
/O.EXP.KEKA.WS.W.0005.000000T0000Z-240204T1800Z/
Southern Lake-
Including Cobb and Knobcone Camp
954 AM PST Sun Feb 4 2024

...WINTER STORM WARNING WILL EXPIRE AT 10 AM PST THIS MORNING...

The threat has ended.

$$

CAZ107-108-050200-
/O.CON.KEKA.WS.W.0005.000000T0000Z-240205T1800Z/
Northern Trinity-Southern Trinity-
Including Hwy 3-Scott Mountain
954 AM PST Sun Feb 4 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST MONDAY 
ABOVE 3000 FEET...

* WHAT...Heavy snow expected Above 3000 feet. Total snow 
  accumulations between 8 and 18 inches. Winds gusting as high as 35 
  mph.

* WHERE...Trinity County.

* WHEN...Until 10 AM PST Monday.

* IMPACTS...Portions of Highway 36, Highway 3 at Scott Mtn Summit 
  and Highway 299 at Buckhorn Summit will likely become slippery and 
  hazardous. Travel could be very difficult.

* ADDITIONAL DETAILS...2 to 4 inches of snow will occur as low as 
  2000 feet Sunday morning. Snowfall below 3000 feet is forecast to 
  change over to rain or a mix of rain and snow during the afternoon 
  and evening on Sunday.

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.

&&

$$

CAZ111-114-050000-
/O.CON.KEKA.WS.W.0005.000000T0000Z-240205T0000Z/
Northeastern Mendocino Interior-Northern Lake-
954 AM PST Sun Feb 4 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS 
AFTERNOON ABOVE 3000 FEET...

* WHAT...Heavy snow expected above 3000 feet. Total snow 
  accumulations between 6 and 15 inches. Winds gusting as high as 50 
  mph.

* WHERE...Northeastern Mendocino Interior and Northern Lake.

* WHEN...Until 4 PM PST this afternoon.

* IMPACTS...Roads will likely become slippery and hazardous. Travel 
  could be very difficult.

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.

&&

$$

For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka

DB

270 
WWUS46 KEKA 042251
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
251 PM PST Sun Feb 4 2024

CAZ107-108-050700-
/O.CON.KEKA.WS.W.0005.000000T0000Z-240205T1800Z/
Northern Trinity-Southern Trinity-
Including Hwy 3-Scott Mountain
251 PM PST Sun Feb 4 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST MONDAY 
ABOVE 3500 FEET...

* WHAT...Heavy snow Above 3500 feet. Additional snow accumulations 
  up to 17 inches. Winds gusting as high as 60 mph.

* WHERE...Trinity County.

* WHEN...Until 10 AM PST Monday.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous. Travel could be very difficult 
  to impossible. Tire chains may be necessary if travelling through 
  mountain passes. Strong winds could cause extensive damage to 
  trees and power lines.

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.

&&

$$

CAZ111-114-050000-
/O.CON.KEKA.WS.W.0005.000000T0000Z-240205T0000Z/
Northeastern Mendocino Interior-Northern Lake-
251 PM PST Sun Feb 4 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS 
AFTERNOON ABOVE 4000 FEET...

* WHAT...Heavy wet snow above 4000 feet. Additional snow 
  accumulations up to one inch. Winds gusting as high as 50 mph.

* WHERE...Northeastern Mendocino Interior and Northern Lake.

* WHEN...Until 4 PM PST this afternoon.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous. Plan on slippery road 
  conditions. 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.

&&

$$

For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka

DB

555 
WWUS46 KEKA 042335
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
335 PM PST Sun Feb 4 2024

CAZ111-114-050045-
/O.EXP.KEKA.WS.W.0005.000000T0000Z-240205T0000Z/
Northeastern Mendocino Interior-Northern Lake-
335 PM PST Sun Feb 4 2024

...WINTER STORM WARNING WILL EXPIRE AT 4 PM PST THIS AFTERNOON...

The threat has ended.

$$

CAZ107-108-050745-
/O.CON.KEKA.WS.W.0005.000000T0000Z-240205T1800Z/
Northern Trinity-Southern Trinity-
Including Hwy 3-Scott Mountain
335 PM PST Sun Feb 4 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST MONDAY 
ABOVE 4000 FEET...

* WHAT...Heavy snow Above 4000 feet. Additional snow accumulations 
  up to 16 inches. Winds gusting as high as 60 mph.

* WHERE...Trinity County.

* WHEN...Until 10 AM PST Monday.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous. Travel could be very difficult 
  to impossible. Tire chains may be necessary if travelling through 
  mountain passes. Strong winds could cause extensive damage to 
  trees and power lines.

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.

&&

$$

For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka

DB

506 
WWUS46 KEKA 050729
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
1129 PM PST Sun Feb 4 2024

CAZ107-108-051530-
/O.CON.KEKA.WS.W.0005.000000T0000Z-240205T1800Z/
Northern Trinity-Southern Trinity-
Including Hwy 3-Scott Mountain
1129 PM PST Sun Feb 4 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST MONDAY 
ABOVE 4000 FEET...

* WHAT...Heavy snow Above 4000 feet. Additional snow accumulations 
  up to 17 inches. Winds gusting as high as 65 mph.

* WHERE...Trinity County.

* WHEN...Until 10 AM PST Monday.

* IMPACTS...Portions of Highway 36, Highway 3 at Scott Mtn Summit 
  and Highway 299 at Buckhorn Summit will likely become slippery and 
  hazardous. Travel could be very difficult.

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.

&&

$$

For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka

ZVS

153 
WWUS46 KEKA 051521
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
721 AM PST Mon Feb 5 2024

CAZ107-108-051800-
/O.CON.KEKA.WS.W.0005.000000T0000Z-240205T1800Z/
Northern Trinity-Southern Trinity-
Including Hwy 3-Scott Mountain
721 AM PST Mon Feb 5 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS 
MORNING ABOVE 4000 FEET...

* WHAT...Heavy snow Above 4000 feet. Additional snow accumulations 
  up to two inches. Winds gusting as high as 55 mph.

* WHERE...Trinity County.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous. Plan on slippery road 
  conditions. Strong winds could cause extensive damage to trees and 
  power lines.

* ADDITIONAL DETAILS...2 to 4 inches of snow will occur as low as 
  2000 feet Sunday morning. Snowfall below 3000 feet is forecast to 
  change over to rain or a mix of rain and snow during the afternoon 
  and evening on Sunday.

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.

&&

$$

For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka

JJW

466 
WWUS46 KEKA 051757
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
957 AM PST Mon Feb 5 2024

CAZ108-051900-
/O.EXP.KEKA.WS.W.0005.000000T0000Z-240205T1800Z/
Southern Trinity-
957 AM PST Mon Feb 5 2024

...WINTER STORM WARNING WILL EXPIRE AT 10 AM PST THIS MORNING...

$$

CAZ107-060200-
/O.EXT.KEKA.WS.W.0005.000000T0000Z-240206T0600Z/
Northern Trinity-
Including Hwy 3-Scott Mountain
957 AM PST Mon Feb 5 2024

...WINTER STORM WARNING NOW IN EFFECT UNTIL 10 PM PST THIS EVENING 
ABOVE 4000 FEET...

* WHAT...Heavy snow Above 4000 feet. Additional snow accumulations 
  up to 7 inches. Winds gusting as high as 50 mph.

* WHERE...Northern Trinity.

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

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous. Travel could be very difficult. 
  Gusty winds could bring down tree branches this morning.

* ADDITIONAL DETAILS...Winds will be subsiding throughout the day

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.

&&

$$

For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka

JJW

343 
WWUS46 KEKA 060035
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
435 PM PST Mon Feb 5 2024

CAZ107-060600-
/O.CON.KEKA.WS.W.0005.000000T0000Z-240206T0600Z/
Northern Trinity-
Including Hwy 3-Scott Mountain
435 PM PST Mon Feb 5 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS 
EVENING ABOVE 4000 FEET...

* WHAT...Heavy snow Above 4000 feet. Additional snow accumulations 
  up to two inches.

* WHERE...Northern Trinity.

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

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely be slick and hazardous above 4,000 feet. Plan on slippery 
  road conditions.

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.

&&

$$

For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka

MKK

632 
WWUS46 KEKA 060415
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
815 PM PST Mon Feb 5 2024

CAZ107-060515-
/O.CAN.KEKA.WS.W.0005.000000T0000Z-240206T0600Z/
Northern Trinity-
Including Hwy 3-Scott Mountain
815 PM PST Mon Feb 5 2024

...WINTER STORM WARNING IS CANCELLED...

Most of the rain and snow has come to an end. A few sprinkles or 
flurries are still possible this evening.

$$

For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka

MKK

AREA FORECAST DISCUSSION
National Weather Service Eureka CA
303 PM PST Fri Feb 2 2024

.SYNOPSIS...Showers, isolated thunderstorms and small hail are
forecast this evening and overnight. Shower activity will diminish
on Saturday before the next storm impacts Mendocino, Lake and
Trinity Counties with potentially strong gusty winds, moderate to
heavy rain and high elevation snow on Sunday. Wet and unsettled
weather will continue into Monday, and then ease up by Tuesday.

&&

.DISCUSSION...Cold core aloft (500mb temps near -30C) and low
level west-southwesterly continued across the forecast area
today. Brief downpours of heavy rain and isolated 45-55dBz cores
dropping small pea-sized hail have occurred. So far not much in
the way lightning activity except for a cluster strikes with
strong storms in the north end of the Sacramento valley.
Instability and low topped convective activity will continue this
evening in response to the cooler temperatures through the entire
column 925-500mb. There might even be some snow above 2000-2500
feet for the western slopes of Del Norte and Humboldt Counties
this evening. Web cams at Berry Summit has not shown any snow yet,
however snow levels are forecast to fall this evening. Accumulations
are likely to remain below winter weather advisory thresholds,
under 2 inches. Even light amounts <1 inch could create slippery
road conditions and motorists should be prepared for possible
travel delays. The snow will be brief and intermittent.

Cold air aloft and slight instability will linger during the day
on Saturday. The low level surface flow will turn south-southeasterly
as a barotropic low over Oregon offshore waters migrates southward
into northern California offshore waters. Expect the onslaught of
open cellular cumulus convection and showers to cease as a result.
Granted there will still be some instability associated with the
cool temperatures aloft and some showers may still pop-up over the
interior and spread westward out over the coast. The activity
should be light and not significant. Otherwise, a dry period
Saturday evening is expected for much of the area as southeast
flow ramps up in response to another storm. The next storm will
begin take aim on the southern portion of the forecast area (Mendo
and Lake Counties) later Saturday evening into the early morning
hours of Sunday.

A separate surface low originating NE of Hawaii will become absorbed
into the upper trough complex by Sunday. Deterministic models have
been varying around with the track and placement of this low, but
now the GFS and ECMWF have come into better agreement. Granted
both could still be incorrect, but ensemble and probabilistic
guidance has been trending toward stronger E-SE winds as gradients
tighten and 925mb winds crank up to 40-60kt across southern Mendo
and Lake. Granted the strongest 925mb winds will be south of
Bodega Bay with speeds of 70-80kt. There is still a great deal of
ensemble spread and model variability across Northwest California
forecast area. A wind advisory may be necessary if trends continue
and the high resolution ensemble spread tightens up.

The surge of moist air and high PWATS (> 1in) will most likely
take aim south of the forecast area - clipping Mendocino and Lake
Counties with moderate to heavy rain on Sunday. Right now the
threat for more flooding appears to be low as the IVT plume heads
south and east of southern Mendo and southern Lake counties.
Also, with snow levels remaining relatively low (3000 feet), at
least initially, all the precipitation in the basins may not be
all rain. For now, considering we are in a slight risk (15%
chance) for execessive rain, a flood watch has been issued for
southern Mendocino and southern Lake Counties. Minor flooding and
rises on rivers, streams and creaks are certainly within the realm
of possibilities, but chances are lower compared to our last
atmospheric river storm.

There is concern for snowfall at lower elevations from 2000-3000
feet in southern Lake and NE Trinity Counties Sunday morning.
This will need to be watched. We lowered the snow levels to 3000
feet, based mostly on the deterministic GFS and NAM. Snow levels
for the last low elevation snow event in eastern Trinity on Jan
12-13th, NBM levels were way too high. Levels should eventually
rise above 3500-4000 feet. How fast is not certain. We expanded
the winter storm watch into NE Mendocino and Nrn Lake Counties.
This will need to be converted into a warning in the 12-18 hours.

The upper trough complex will remain over the area on Monday for
continued wet and unsettled weather. Additional shortwave troughs
in cooler NW flow with episodes of light to moderate precipitation
are expected. Overall it looks much calmer next week. DB

&&

.AVIATION...Mostly VFR conditions have prevailed today with cool,
unstable air aloft keep ceilings elevated and broken. Quick passing
showers have brought the only periods of MVFR to IFR conditions
along the coast. High resolution models show showers gradually
dissipating through the evening with already little more activity
evident offshore on radar by mid afternoon. Outside of showers,
calming wind and generally scattered to broken ceilings around 5 kft
will provide for VFR conditions. Where skies clear, inland valley
fog may support IFR to LIFR conditions like around UKI, but model
data suggest a generally low (20%) chance of this occurring. /JHW

&&

.MARINE...A mid period westerly swell currently around 14 feet
continues to dominate the sea state this afternoon. Otherwise,
moderate southwest winds have persisted over the waters with
scattered showers briefly generating gustier conditions.

A storm system approaching the central California coast this weekend
will gradually shift winds southerly Saturday, easterly on Sunday,
and finally northerly early next week. The strength of the winds
vary widely between model, but peak winds are most likely Sunday in
the southern waters. Some models have the low itself zipping north
along the waters, which could bring brief periods of erratic gale
force gusts (though NBM generally suggests a low probability of this
around 25%). Short period seas through the weekend will be chaotic
though generally small with quickly shifting winds not giving
enough time or fetch to build large waves.

Beyond wind and short period waves, the current westerly swell will
continue to gradually decay through the weekend with heights
dropping below 10 feet by late Saturday. A shot lived though steep
southerly swell up to 15 feet at 11 seconds is likely Sunday into
Monday as the storms passes to the south. Otherwise, more consistent
northwest wind is likely by mid next week with associated moderate
short period seas and minor long period swells. /JHW

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
     Winter Storm Watch from Sunday morning through Monday
     morning for CAZ107-108.

     Winter Storm Watch from Saturday evening through Sunday
     morning for CAZ111-114.

     Flood Watch from Sunday morning through Sunday afternoon
     for CAZ112-113-115.

NORTHWEST CALIFORNIA COASTAL WATERS...
     Small Craft Advisory until 9 PM PST Saturday for PZZ450-455-
     470-475.

&&

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For forecast zone information
see the forecast zone map online:
https://www.weather.gov/images/eka/zonemap.png

Preliminary Local Storm Report
National Weather Service Eureka CA
238 PM PST Fri Feb 2 2024

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

0233 PM     Hail             1 NNW Blue Lake         40.90N 124.00W
02/02/2024  E0.25 inch       Humboldt           CA   Cocorahs

            Short duration of hail. No reported
            accumulation.

&&

JHW

Special Weather Statement
National Weather Service Eureka CA
241 PM PST Fri Feb 2 2024

CAZ103-105-106-022315-
Northern Humboldt Coast CA-Southern Humboldt Interior CA-
Northern Humboldt Interior CA-
241 PM PST Fri Feb 2 2024

...GUSTY SHOWERS WITH SMALL HAIL WILL IMPACT CENTRAL HUMBOLDT COUNTY
THROUGH 315 PM PST...

At 239 PM PST, the public reported gusty showers 7 miles east of
McKinleyville, or 7 miles northeast of Arcata, moving east at 15 mph.

HAZARD...Pea size hail.

SOURCE...Public.

IMPACT...Hazard to driving vehicles

Locations impacted include...
Willow Creek and Blue Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4085 12400 4099 12401 4110 12377 4092 12369
TIME...MOT...LOC 2239Z 250DEG 12KT 4091 12396

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...<30 MPH

JJW