Alert archive / California / Freeze Warnings in 2022
Freeze Warning 21, NWS Eureka, CA
NWS Eureka, CA issued this freeze warning at May 8, 2022, 2:55 AM PDT for 5 counties in California. It took effect at May 9, 2022, 1:00 AM PDT. It was in force for 7 hr. 1 report 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
- May 8, 2022, 2:55 AM PDT (09:55 UTC)
- In effect from
- May 9, 2022, 1:00 AM PDT
- Expired
- May 9, 2022, 8:00 AM PDT
- In force
- 7 hr
- Issued by
- NWS Eureka, CA
Counties Del Norte County, CA, Humboldt County, CA, Lake County, CA, Mendocino County, CA, Trinity County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 75 km from the middle of the area, began a volume at 09:55 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
| Time | Report | Where | Remark |
|---|---|---|---|
| May 9, 7:56 AM PDT | SNOW 4 | 4 Wsw Dinsmore, CA | SPOTTER REPORTS 4 INCHES OF SNOW OCCURRING BETWEEN 11PM MAY 8TH 2022 THROUGH 6 AM MAY 9TH 2022. ELEVATION IS 2700 FEET. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Medford/Jackson, OR (KMFR), launched 00:00Z, 9.9 hours before the alert went out and 233 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.
- Mixed-layer CAPE
- 15 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 1218 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 91 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
305 WWUS76 KEKA 080955 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 255 AM PDT Sun May 8 2022 CAZ113-115-081100- /O.CAN.KEKA.FZ.A.0010.220509T0800Z-220509T1600Z/ Southeastern Mendocino Interior-Southern Lake- 255 AM PDT Sun May 8 2022 ...FREEZE WATCH IS CANCELLED... Widespread freezing temperatures are not expected. $$ CAZ110-111-114-081930- /O.UPG.KEKA.FZ.A.0010.220509T0800Z-220509T1600Z/ /O.NEW.KEKA.FZ.W.0021.220509T0800Z-220509T1500Z/ /O.CON.KEKA.FR.Y.0031.000000T0000Z-220508T1500Z/ Northwestern Mendocino Interior-Northeastern Mendocino Interior- Northern Lake- 255 AM PDT Sun May 8 2022 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM PDT THIS MORNING... ...FREEZE WARNING IN EFFECT FROM 1 AM TO 8 AM PDT MONDAY... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as 30 expected. For the Frost Advisory, temperatures as low as 33 will result in frost formation. * WHERE...Northwestern Mendocino Interior, Northeastern Mendocino Interior and Northern Lake Counties. * WHEN...For the Freeze Warning, from 1 AM to 8 AM PDT Monday. For the Frost Advisory, until 8 AM PDT this morning. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. Provide adequate shelter for outdoor pets or consider bringing them indoors. Frost Advisories and Freeze Warnings are issued during the local growing season as defined by climatology and local agriculture experts. Once the growing season has ended these statements will no longer be issued until the spring. && $$ CAZ102-105>108-081930- /O.UPG.KEKA.FZ.A.0010.220509T0800Z-220509T1600Z/ /O.NEW.KEKA.FZ.W.0021.220509T0800Z-220509T1500Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northern Trinity-Southern Trinity- 255 AM PDT Sun May 8 2022 ...FREEZE WARNING IN EFFECT FROM 1 AM TO 8 AM PDT MONDAY... * WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...Del Norte Interior, Northern Humboldt Interior, Southern Humboldt Interior, Northern Trinity and Southern Trinity Counties. * WHEN...From 1 AM to 8 AM PDT Monday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. Provide adequate shelter for outdoor pets or consider bringing them indoors. Frost Advisories and Freeze Warnings are issued during the local growing season as defined by climatology and local agriculture experts. Once the growing season has ended these statements will no longer be issued until the spring. && $$
5 follow-up statements
677 WWUS76 KEKA 081443 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 743 AM PDT Sun May 8 2022 CAZ110-111-114-082245- /O.EXP.KEKA.FR.Y.0031.000000T0000Z-220508T1500Z/ /O.CON.KEKA.FZ.W.0021.220509T0800Z-220509T1500Z/ Northwestern Mendocino Interior-Northeastern Mendocino Interior- Northern Lake- 743 AM PDT Sun May 8 2022 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 8 AM PDT MONDAY... ...FROST ADVISORY WILL EXPIRE AT 8 AM PDT THIS MORNING... * WHAT...Sub-freezing temperatures as low as 26 expected. * WHERE...Northeastern Mendocino Interior, Northwestern Mendocino Interior and Northern Lake Counties. * WHEN...From 1 AM to 8 AM PDT Monday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. Provide adequate shelter for outdoor pets or consider bringing them indoors. Frost Advisories and Freeze Warnings are issued during the local growing season as defined by climatology and local agriculture experts. Once the growing season has ended these statements will no longer be issued until the spring. && $$ CAZ102-105>108-082245- /O.CON.KEKA.FZ.W.0021.220509T0800Z-220509T1500Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northern Trinity-Southern Trinity- 743 AM PDT Sun May 8 2022 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 8 AM PDT MONDAY... * WHAT...Sub-freezing temperatures as low as 24 expected. * WHERE...Southern Trinity, Del Norte Interior, Northern Humboldt Interior, Northern Trinity and Southern Humboldt Interior Counties. * WHEN...From 1 AM to 8 AM PDT Monday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. Provide adequate shelter for outdoor pets or consider bringing them indoors. Frost Advisories and Freeze Warnings are issued during the local growing season as defined by climatology and local agriculture experts. Once the growing season has ended these statements will no longer be issued until the spring. && $$
670 WWUS76 KEKA 082104 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 204 PM PDT Sun May 8 2022 CAZ104-109-113-115-090515- /O.EXA.KEKA.FZ.W.0021.220509T0800Z-220509T1500Z/ Southwestern Humboldt-Mendocino Coast- Southeastern Mendocino Interior-Southern Lake- 204 PM PDT Sun May 8 2022 ...FREEZE WARNING IN EFFECT FROM 1 AM TO 8 AM PDT MONDAY... * WHAT...Sub-freezing temperatures as low as 32 expected. * WHERE...Southwestern Humboldt, Mendocino Coast, Southeastern Mendocino Interior and Southern Lake Counties. * WHEN...From 1 AM to 8 AM PDT Monday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. Provide adequate shelter for outdoor pets or consider bringing them indoors. Frost Advisories and Freeze Warnings are issued during the local growing season as defined by climatology and local agriculture experts. Once the growing season has ended these statements will no longer be issued until the spring. && $$ CAZ102-105>108-110-111-114-090515- /O.CON.KEKA.FZ.W.0021.220509T0800Z-220509T1500Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northern Trinity-Southern Trinity- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Northern Lake- 204 PM PDT Sun May 8 2022 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 8 AM PDT MONDAY... * WHAT...Sub-freezing temperatures as low as 29 expected. * WHERE...Southern Trinity, Del Norte Interior, Northwestern Mendocino Interior, Northeastern Mendocino Interior, Northern Humboldt Interior, Northern Trinity, Southern Humboldt Interior and Northern Lake Counties. * WHEN...From 1 AM to 8 AM PDT Monday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. Provide adequate shelter for outdoor pets or consider bringing them indoors. Frost Advisories and Freeze Warnings are issued during the local growing season as defined by climatology and local agriculture experts. Once the growing season has ended these statements will no longer be issued until the spring. && $$
687 WWUS76 KEKA 090439 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 939 PM PDT Sun May 8 2022 CAZ104-109-113-090545- /O.CAN.KEKA.FZ.W.0021.220509T0800Z-220509T1500Z/ Southwestern Humboldt-Mendocino Coast- Southeastern Mendocino Interior- 939 PM PDT Sun May 8 2022 ...FREEZE WARNING IS CANCELLED... Some cold spots will get down low to mid 30s, but clouds will keep temperatures above freezing. $$ CAZ102-105>108-110-111-114-115-091245- /O.CON.KEKA.FZ.W.0021.220509T0800Z-220509T1500Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northern Trinity-Southern Trinity- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Northern Lake-Southern Lake- 939 PM PDT Sun May 8 2022 ...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 8 AM PDT MONDAY... * WHAT...Sub-freezing temperatures as low as 28 expected. * WHERE...Southern Trinity, Northeastern Mendocino Interior, Northwestern Mendocino Interior, Del Norte Interior, Northern Humboldt Interior, Northern Trinity, Southern Humboldt Interior, Northern Lake and Southern Lake Counties. * WHEN...From 1 AM to 8 AM PDT Monday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. Provide adequate shelter for outdoor pets or consider bringing them indoors. Frost Advisories and Freeze Warnings are issued during the local growing season as defined by climatology and local agriculture experts. Once the growing season has ended these statements will no longer be issued until the spring. && $$
159 WWUS76 KEKA 091014 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 314 AM PDT Mon May 9 2022 CAZ102-105>108-110-111-114-092230- /O.NEW.KEKA.HZ.W.0011.220510T0900Z-220510T1500Z/ /O.CON.KEKA.FZ.W.0021.000000T0000Z-220509T1500Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northern Trinity-Southern Trinity- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Northern Lake- 314 AM PDT Mon May 9 2022 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM PDT THIS MORNING... ...HARD FREEZE WARNING IN EFFECT FROM 2 AM TO 8 AM PDT TUESDAY... * WHAT...For the Hard Freeze Warning, sub-freezing temperatures as low as 26 expected. For the Freeze Warning, sub-freezing temperatures as low as 30. * WHERE...Del Norte Interior, Northern Humboldt Interior, Southern Humboldt Interior, Northern Trinity, Southern Trinity, Northwestern Mendocino Interior, Northeastern Mendocino Interior and Northern Lake Counties. * WHEN...For the Hard Freeze Warning, from 2 AM to 8 AM PDT Tuesday. For the Freeze Warning, until 8 AM PDT this morning. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. Frost Advisories and Freeze Warnings are issued during the local growing season as defined by climatology and local agriculture experts. Once the growing season has ended these statements will no longer be issued until the spring. && $$ CAZ115-092230- /O.NEW.KEKA.FZ.W.0022.220510T0900Z-220510T1500Z/ /O.CON.KEKA.FZ.W.0021.000000T0000Z-220509T1500Z/ Southern Lake- 314 AM PDT Mon May 9 2022 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM PDT THIS MORNING... ...FREEZE WARNING IN EFFECT FROM 2 AM TO 8 AM PDT TUESDAY... * WHAT...For the first Freeze Warning, sub-freezing temperatures as low as 32. For the second Freeze Warning, sub-freezing temperatures as low as 30 expected. * WHERE...Southern Lake County. * WHEN...For the first Freeze Warning, until 8 AM PDT this morning. For the second Freeze Warning, from 2 AM to 8 AM PDT Tuesday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. Provide adequate shelter for outdoor pets or consider bringing them indoors. Frost Advisories and Freeze Warnings are issued during the local growing season as defined by climatology and local agriculture experts. Once the growing season has ended these statements will no longer be issued until the spring. && $$ CAZ104-109-112-113-092230- /O.NEW.KEKA.FZ.W.0022.220510T0900Z-220510T1500Z/ Southwestern Humboldt-Mendocino Coast- Southwestern Mendocino Interior-Southeastern Mendocino Interior- 314 AM PDT Mon May 9 2022 ...FREEZE WARNING IN EFFECT FROM 2 AM TO 8 AM PDT TUESDAY... * WHAT...Sub-freezing temperatures as low as 32 expected. * WHERE...Southwestern Humboldt, Mendocino Coast, Southwestern Mendocino Interior and Southeastern Mendocino Interior Counties. * WHEN...From 2 AM to 8 AM PDT Tuesday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. Provide adequate shelter for outdoor pets or consider bringing them indoors. Frost Advisories and Freeze Warnings are issued during the local growing season as defined by climatology and local agriculture experts. Once the growing season has ended these statements will no longer be issued until the spring. && $$ CAZ101-103-092230- /O.NEW.KEKA.FR.Y.0032.220510T0900Z-220510T1500Z/ Coastal Del Norte-Northern Humboldt Coast- 314 AM PDT Mon May 9 2022 ...FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM PDT TUESDAY... * WHAT...Temperatures as low as 34 will result in frost formation. * WHERE...Coastal Del Norte and Northern Humboldt Coast Counties. * WHEN...From 2 AM to 8 AM PDT Tuesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. Frost Advisories and Freeze Warnings are issued during the local growing season as defined by climatology and local agriculture experts. Once the growing season has ended these statements will no longer be issued until the spring. && $$
744 WWUS76 KEKA 091431 NPWEKA URGENT - WEATHER MESSAGE National Weather Service Eureka CA 731 AM PDT Mon May 9 2022 CAZ102-105>108-110-111-114-092245- /O.EXP.KEKA.FZ.W.0021.000000T0000Z-220509T1500Z/ /O.CON.KEKA.HZ.W.0011.220510T0900Z-220510T1500Z/ Del Norte Interior-Northern Humboldt Interior- Southern Humboldt Interior-Northern Trinity-Southern Trinity- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Northern Lake- 731 AM PDT Mon May 9 2022 ...HARD FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM PDT TUESDAY... * WHAT...Sub-freezing temperatures as low as 22 expected. * WHERE...Southern Trinity, Del Norte Interior, Northeastern Mendocino Interior, Northern Humboldt Interior, Northern Trinity, Southern Humboldt Interior, Northern Lake and Northwestern Mendocino Interior Counties. * WHEN...From 2 AM to 8 AM PDT Tuesday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. Frost Advisories and Freeze Warnings are issued during the local growing season as defined by climatology and local agriculture experts. Once the growing season has ended these statements will no longer be issued until the spring. && $$ CAZ115-092245- /O.EXP.KEKA.FZ.W.0021.000000T0000Z-220509T1500Z/ /O.CON.KEKA.FZ.W.0022.220510T0900Z-220510T1500Z/ Southern Lake- 731 AM PDT Mon May 9 2022 ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM PDT TUESDAY... * WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...Southern Lake County. * WHEN...From 2 AM to 8 AM PDT Tuesday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. Provide adequate shelter for outdoor pets or consider bringing them indoors. Frost Advisories and Freeze Warnings are issued during the local growing season as defined by climatology and local agriculture experts. Once the growing season has ended these statements will no longer be issued until the spring. && $$ CAZ104-109-112-113-092245- /O.CON.KEKA.FZ.W.0022.220510T0900Z-220510T1500Z/ Southwestern Humboldt-Mendocino Coast- Southwestern Mendocino Interior-Southeastern Mendocino Interior- 731 AM PDT Mon May 9 2022 ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM PDT TUESDAY... * WHAT...Sub-freezing temperatures as low as 30 expected. * WHERE...Mendocino Coast, Southeastern Mendocino Interior, Southwestern Humboldt and Southwestern Mendocino Interior Counties. * WHEN...From 2 AM to 8 AM PDT Tuesday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. Provide adequate shelter for outdoor pets or consider bringing them indoors. Frost Advisories and Freeze Warnings are issued during the local growing season as defined by climatology and local agriculture experts. Once the growing season has ended these statements will no longer be issued until the spring. && $$ CAZ101-103-092245- /O.CON.KEKA.FR.Y.0032.220510T0900Z-220510T1500Z/ Coastal Del Norte-Northern Humboldt Coast- 731 AM PDT Mon May 9 2022 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 AM PDT TUESDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Coastal Del Norte and Northern Humboldt Coast Counties. * WHEN...From 2 AM to 8 AM PDT Tuesday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. Frost Advisories and Freeze Warnings are issued during the local growing season as defined by climatology and local agriculture experts. Once the growing season has ended these statements will no longer be issued until the spring. && $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 8, 2:45 AM PDT | Gale Warning | EKA | 18 hr | |
| May 8, 2:45 AM PDT | Hazardous Seas Warning | EKA | 24 hr | |
| May 8, 8:07 AM PDT | Winter Storm Warning | EKA | Del Norte, Humboldt, Mendocino, Trinity | 13 hr |
Nearby
Freeze Warnings in California, 2022Every freeze warning in 2022
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.