Alert archive / California / Flood Watches in 2017
Flood Watch 7, NWS Eureka, CA
NWS Eureka, CA issued this flood watch at Nov 14, 2017, 11:39 AM PST for Mendocino County, California. It took effect at Nov 15, 2017, 10:00 AM PST. It was in force for 18 hr.
The area
The counties it named.
The facts
- Issued
- Nov 14, 2017, 11:39 AM PST (19:39 UTC)
- In effect from
- Nov 15, 2017, 10:00 AM PST
- Expired
- Nov 16, 2017, 3:39 AM PST
- In force
- 18 hr
- Issued by
- NWS Eureka, CA
County Mendocino County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 139 km from the middle of the area, began a volume at 19:43 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
Oakland, CA (KOAK), launched 12:00Z, 7.7 hours before the alert went out and 218 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
- 1127 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 175 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
706 WGUS66 KEKA 141939 FFAEKA URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Eureka CA 1139 AM PST Tue Nov 14 2017 CAZ110-113-151130- /O.NEW.KEKA.FA.A.0001.171115T1200Z-171116T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- 1139 AM PST Tue Nov 14 2017 ...FLOOD WATCH IN EFFECT FROM EARLY WEDNESDAY MORNING THROUGH EARLY THURSDAY MORNING... The National Weather Service in Eureka has issued a * Flood Watch for wildfire burn scars around Redwood and Potter Valleys within interior Mendocino County. * From early Wednesday morning through early Thursday morning. * Moderate and potentially heavy rainfall may cause flooding along with rock or land slides in and below the burn scar. Hourly rainfall rates could exceed 0.50 inches at times during the upcoming storm. Severely burned areas are of particular concern. * Due to the potential flooding...this could quickly become a dangerous situation. Residents and persons traveling around the Redwood Valley burn scar area should remain alert and take extreme caution should flooding or debris flows develop. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. Turn Around, Dont Drown!! && $$
6 follow-up statements
606 WGUS66 KEKA 151130 FFAEKA URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Eureka CA 330 AM PST Wed Nov 15 2017 CAZ110-113-160000- /O.EXT.KEKA.FA.A.0001.171115T1800Z-171116T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- 330 AM PST Wed Nov 15 2017 ...FLOOD WATCH NOW IN EFFECT FROM 10 AM PST THIS MORNING THROUGH LATE TONIGHT... The Flood Watch is now in effect for * Flood Watch for wildfire burn scars around Redwood and Potter Valleys within interior Mendocino County. * From late Wednesday morning through early Thursday morning. * Moderate and potentially heavy rainfall may cause flooding along with rock or land slides in and below the burn scar. Hourly rainfall rates could exceed 0.50 inches at times during the upcoming storm. Severely burned areas are of particular concern. * Due to the potential flooding...this could quickly become a dangerous situation. Residents and persons traveling around the Redwood Valley burn scar area should remain alert and take extreme caution should flooding or debris flows develop. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. Turn Around, Dont Drown!! && $$
136 WGUS66 KEKA 151927 FFAEKA Flood Watch National Weather Service Eureka CA 1127 AM PST Wed Nov 15 2017 CAZ110-113-160330- /O.CON.KEKA.FA.A.0001.000000T0000Z-171116T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- 1127 AM PST Wed Nov 15 2017 ...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT... The Flood Watch continues for * Flood Watch for wildfire burn scars around Redwood and Potter Valleys within interior Mendocino County. * Through late tonight * Moderate to locally heavy rainfall may cause flooding along with rock or land slides in and below burn scars. Hourly rainfall rates could exceed 0.50 inches at times through tonight. Severely burned areas are of particular concern. * Due to potential flooding...this could quickly become a dangerous situation. Residents and persons traveling around the Redwood Valley burn scar area should remain alert and take extreme caution should flooding or debris flows develop. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. Turn Around, Dont Drown!! && $$
236 WGUS66 KEKA 152025 FFAEKA URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Eureka CA 1225 PM PST Wed Nov 15 2017 CAZ107-160430- /O.EXB.KEKA.FA.A.0001.000000T0000Z-171116T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northern Trinity- 1225 PM PST Wed Nov 15 2017 ...FLOOD WATCH IN EFFECT UNTIL 10 PM PST THIS EVENING... The National Weather Service in Eureka has issued a Flood Watch for the Helena wildfire burn scar. * Flood Watch for Helena wildfire burn scar. * Until 10 PM PST this evening * Moderate to locally heavy rainfall may cause flooding along with rock or land slides in and below burn scars. Hourly rainfall rates could exceed 0.50 inches at times through this evening. Severely burned areas are of particular concern. * Due to potential flooding...this could quickly become a dangerous situation. Residents and persons traveling around the Helena burn scar area should remain alert and take extreme caution should flooding or debris flows develop. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. Turn Around, Dont Drown!! && $$ CAZ110-113-160430- /O.CON.KEKA.FA.A.0001.000000T0000Z-171116T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- 1225 PM PST Wed Nov 15 2017 ...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT... The Flood Watch continues for * Flood Watch for wildfire burn scars around Redwood and Potter Valleys within interior Mendocino County. * Through late tonight * Moderate to locally heavy rainfall may cause flooding along with rock or land slides in and below burn scars. Hourly rainfall rates could exceed 0.50 inches at times through tonight. Severely burned areas are of particular concern. * Due to potential flooding...this could quickly become a dangerous situation. Residents and persons traveling around the Redwood and Potter Valley burn scar area should remain alert and take extreme caution should flooding or debris flows develop. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. Turn Around, Dont Drown!! && $$
727 WGUS66 KEKA 152242 FFAEKA Flood Watch National Weather Service Eureka CA 242 PM PST Wed Nov 15 2017 CAZ110-113-160645- /O.CON.KEKA.FA.A.0001.000000T0000Z-171116T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- 242 PM PST Wed Nov 15 2017 ...FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT... The Flood Watch continues for * Flood Watch for wildfire burn scars around Redwood and Potter Valleys within interior Mendocino County. * Through late tonight * Moderate to locally heavy rainfall may cause flooding along with rock or land slides in and below burn scars. Hourly rainfall rates could exceed 0.50 inches at times through tonight. Severely burned areas are of particular concern. * Due to potential flooding...this could quickly become a dangerous situation. Residents and persons traveling around the Redwood and Potter Valley burn scar area should remain alert and take extreme caution should flooding or debris flows develop. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. Turn Around, Dont Drown!! && $$ CAZ107-160600- /O.CON.KEKA.FA.A.0001.000000T0000Z-171116T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northern Trinity- 242 PM PST Wed Nov 15 2017 ...FLOOD WATCH REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... The Flood Watch continues for * Flood Watch for Helena wildfire burn scar in northern Trinity County. * Until 10 PM PST this evening * Moderate to locally heavy rainfall may cause flooding along with rock or land slides in and below burn scars. Hourly rainfall rates could exceed 0.50 inches at times through this evening. Severely burned areas are of particular concern. * Due to potential flooding...this could quickly become a dangerous situation. Residents and persons traveling around the Helena burn scar area should remain alert and take extreme caution should flooding or debris flows develop. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. Turn Around, Dont Drown!! && $$
454 WGUS66 KEKA 160604 FFAEKA Flood Watch National Weather Service Eureka CA 1004 PM PST Wed Nov 15 2017 CAZ107-160715- /O.EXP.KEKA.FA.A.0001.000000T0000Z-171116T0600Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northern Trinity- 1004 PM PST Wed Nov 15 2017 ...FLOOD WATCH HAS EXPIRED... The Flood Watch for a portion of northwest California has expired. The potential for heavy rainfall has come to an end this evening. $$ CAZ110-113-161200- /O.CON.KEKA.FA.A.0001.000000T0000Z-171116T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- 1004 PM PST Wed Nov 15 2017 ...FLOOD WATCH REMAINS IN EFFECT UNTIL 4 AM PST THURSDAY... The Flood Watch continues for * A portion of northwest California, including the following areas, Northwestern Mendocino Interior and Southeastern Mendocino Interior. * Until 4 AM PST Thursday * Moderate to locally heavy rainfall may cause flooding along with rock or land slides in and below burn scars. Hourly rainfall rates could exceed 0.50 inches at times through tonight. Severely burned areas are of particular concern. * Due to potential flooding...this could quickly become a dangerous situation. Residents and persons traveling around the Redwood and Potter Valley burn scar area should remain alert and take extreme caution should flooding or debris flows develop. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Watch means there is a potential for flooding based on current forecasts. You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. Turn Around, Dont Drown!! && $$
965 WGUS66 KEKA 161139 FFAEKA Flood Watch National Weather Service Eureka CA 339 AM PST Thu Nov 16 2017 CAZ110-113-161245- /O.CAN.KEKA.FA.A.0001.000000T0000Z-171116T1200Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northwestern Mendocino Interior-Southeastern Mendocino Interior- 339 AM PST Thu Nov 16 2017 ...FLOOD WATCH IS CANCELLED... The Flood Watch for a portion of northwest California has been cancelled. $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 14, 3:15 AM PST | Wind Advisory | EKA | Del Norte, Humboldt, Mendocino, Trinity | 43 hr |
| Nov 14, 3:31 AM PST | Gale Warning | EKA | 39 hr | |
| Nov 14, 9:07 AM PST | Small Craft Advisory | EKA | 24 hr | |
| Nov 14, 2:44 PM PST | Small Craft Advisory | EKA | 18 hr |
Nearby
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.