Alert archive / California / Frost Advisories in 2016
Frost Advisory 20, NWS Eureka, CA
NWS Eureka, CA issued this frost advisory at Dec 6, 2016, 4:26 AM PST for Del Norte County, Humboldt County, Mendocino County, California. It took effect at Dec 6, 2016, 9:00 PM PST. It was in force for 13 hr.
The area
The counties it named.
The facts
- Issued
- Dec 6, 2016, 4:26 AM PST (12:26 UTC)
- In effect from
- Dec 6, 2016, 9:00 PM PST
- Expired
- Dec 7, 2016, 10:00 AM PST
- In force
- 13 hr
- Issued by
- NWS Eureka, CA
Counties Del Norte County, CA, Humboldt County, CA, Mendocino County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 47 km from the middle of the area, began a volume at 12:28 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Medford/Jackson, OR (KMFR), launched 12:00Z, 0.4 hours before the alert went out and 210 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 499 m above ground
- 0-6 km bulk shear
- 82 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 209 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
865 WWUS76 KEKA 061226 NPWEKA URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE EUREKA CA 426 AM PST TUE DEC 6 2016 CAZ102-105-106-070130- /O.NEW.KEKA.FZ.W.0004.161207T0800Z-161207T1800Z/ DEL NORTE INTERIOR-NORTHERN HUMBOLDT INTERIOR- SOUTHERN HUMBOLDT INTERIOR- 426 AM PST TUE DEC 6 2016 ...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM PST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM PST WEDNESDAY. * LOW TEMPERATURES...27 TO 32. * LOCATIONS INCLUDE...INTERIOR VALLEYS OF THE COASTAL INTERIOR INCLUDING...MAD RIVER...RUTH...HOOPA...WILLOW CK AND GARBERVILLE. * FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT HTTP://WWW.WRH.NOAA.GOV/MAP PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ CAZ101-103-104-070130- /O.NEW.KEKA.FR.Y.0020.161207T0800Z-161207T1800Z/ COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT- 426 AM PST TUE DEC 6 2016 ...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM PST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM PST WEDNESDAY. * LOW TEMPERATURES...MID 30S. * LOCATIONS INCLUDE...CRESCENT CITY...ARCATA...EUREKA... FORTUNA...PATROLIA...HONEYDEW...ETTERSBERG... * FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT HTTP://WWW.WRH.NOAA.GOV/MAP PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$
2 follow-up statements
249 WWUS76 KEKA 062246 NPWEKA URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE EUREKA CA 246 PM PST TUE DEC 6 2016 CAZ102-105-106-071315- /O.CON.KEKA.FZ.W.0004.161207T0800Z-161207T1800Z/ DEL NORTE INTERIOR-NORTHERN HUMBOLDT INTERIOR- SOUTHERN HUMBOLDT INTERIOR- 246 PM PST TUE DEC 6 2016 ...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM PST WEDNESDAY... * LOW TEMPERATURES...UPPER 20S TO LOW 30S. * LOCATIONS INCLUDE...INTERIOR VALLEYS OF THE COASTAL INTERIOR INCLUDING...MAD RIVER...RUTH...HOOPA...WILLOW CK AND GARBERVILLE. * FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT HTTP://WWW.WRH.NOAA.GOV/MAP PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ CAZ101-103-104-071315- /O.CON.KEKA.FR.Y.0020.161207T0800Z-161207T1800Z/ COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT- 246 PM PST TUE DEC 6 2016 ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM PST WEDNESDAY... * LOW TEMPERATURES...LOW TO MID 30S. * LOCATIONS INCLUDE...CRESCENT CITY...ARCATA...EUREKA... FORTUNA...PATROLIA...HONEYDEW...ETTERSBERG... * FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT HTTP://WWW.WRH.NOAA.GOV/MAP PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$
155 WWUS76 KEKA 070434 NPWEKA URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE EUREKA CA 834 PM PST TUE DEC 6 2016 COLD OVERNIGHT TEMPERATURES ARE EXPECTED THROUGHOUT THE REGION TONIGHT THROUGH TOMORROW MORNING...WITH WIDESPREAD BELOW FREEZING TEMPERATURES THROUGHOUT THE INTERIOR AND NEAR FREEZING TO MID 30S TEMPERATURES WITH PATCHY FROST NEAR THE COAST. CAZ102-105-106-071745- /O.EXT.KEKA.FZ.W.0004.161207T0500Z-161207T1800Z/ DEL NORTE INTERIOR-NORTHERN HUMBOLDT INTERIOR- SOUTHERN HUMBOLDT INTERIOR- 834 PM PST TUE DEC 6 2016 ...FREEZE WARNING NOW IN EFFECT UNTIL 10 AM PST WEDNESDAY... * LOW TEMPERATURES...UPPER 20S TO LOW 30S. * LOCATIONS INCLUDE...INTERIOR VALLEYS OF THE COASTAL INTERIOR INCLUDING...MAD RIVER...DINSMORE...KNEELAND...HOOPA...WILLOW CREEK AND GARBERVILLE. * FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT HTTP://WWW.WRH.NOAA.GOV/MAP PRECAUTIONARY/PREPAREDNESS ACTIONS... A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER SENSITIVE VEGETATION. && $$ CAZ109-071745- /O.EXB.KEKA.FR.Y.0020.161207T0500Z-161207T1800Z/ MENDOCINO COAST- 834 PM PST TUE DEC 6 2016 ...FROST ADVISORY IN EFFECT UNTIL 10 AM PST WEDNESDAY... THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A FROST ADVISORY...WHICH IS IN EFFECT UNTIL 10 AM PST WEDNESDAY. * LOW TEMPERATURES...LOW TO MID 30S. A FEW PROTECTED VALLEYS MAY EXPERIENCE A LIGHT FREEZE AS WELL. * LOCATIONS INCLUDE...CRESCENT CITY...ARCATA...EUREKA... FORTUNA...MCKINLEYVILLE...FERNDALE...KLAMATH...ORICK... PETROLIA...HONEYDEW...ETTERSBERG. * FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT HTTP://WWW.WRH.NOAA.GOV/MAP PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$ CAZ101-103-104-071745- /O.EXT.KEKA.FR.Y.0020.161207T0500Z-161207T1800Z/ COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT- 834 PM PST TUE DEC 6 2016 ...FROST ADVISORY NOW IN EFFECT UNTIL 10 AM PST WEDNESDAY... * LOW TEMPERATURES...LOW TO MID 30S. * LOCATIONS INCLUDE...CRESCENT CITY...ARCATA...EUREKA... FORTUNA...PATROLIA...HONEYDEW...ETTERSBERG... * FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT HTTP://WWW.WRH.NOAA.GOV/MAP PRECAUTIONARY/PREPAREDNESS ACTIONS... A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR PLANTS MAY BE KILLED IF LEFT UNCOVERED. && $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 6, 2:34 AM PST | Gale Warning | EKA | 60 hr | |
| Dec 6, 4:26 AM PST | Freeze Warning | EKA | Del Norte, Humboldt | 30 hr |
| Dec 6, 3:01 PM PST | Winter Weather Advisory | EKA | Del Norte, Humboldt, Trinity | 42 hr |
Nearby
Frost Advisories in California, 2016Every frost advisory in 2016
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.