Alert archive / California / Flood Watches in 2017
Flood Watch 3, NWS Eureka, CA
NWS Eureka, CA issued this flood watch at Feb 6, 2017, 10:45 AM PST for Humboldt County, Mendocino County, Trinity County, California. It took effect at Feb 6, 2017, 10:00 PM PST. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Feb 6, 2017, 10:45 AM PST (18:45 UTC)
- In effect from
- Feb 6, 2017, 10:00 PM PST
- Expired
- Feb 7, 2017, 6:37 AM PST
- In force
- 9 hr
- Issued by
- NWS Eureka, CA
- Flood severity
- None
Counties Humboldt County, CA, Mendocino County, CA, Trinity County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 73 km from the middle of the area, began a volume at 18:48 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, 6.8 hours before the alert went out and 241 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
- 789 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 103 m²/s²
- 0-3 km storm-relative helicity
- 297 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
230 WGUS66 KEKA 061845 FFAEKA URGENT - IMMEDIATE BROADCAST REQUESTED FLOOD WATCH NATIONAL WEATHER SERVICE EUREKA CA 1045 AM PST MON FEB 6 2017 ...THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A FLOOD WATCH FOR PORTIONS OF NORTHWEST CA FOR LATE TONIGHT THROUGH TUESDAY AFTERNOON... CAZ103-104-106-108>113-070245- /O.NEW.KEKA.FA.A.0003.170207T0600Z-170208T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT- SOUTHERN HUMBOLDT INTERIOR-SOUTHERN TRINITY-MENDOCINO COAST- NORTHWESTERN MENDOCINO INTERIOR-NORTHEASTERN MENDOCINO INTERIOR- SOUTHWESTERN MENDOCINO INTERIOR-SOUTHEASTERN MENDOCINO INTERIOR- 1045 AM PST MON FEB 6 2017 ...FLOOD WATCH IN EFFECT FROM 10 PM PST THIS EVENING THROUGH TUESDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A * FLOOD WATCH FOR A PORTIONS OF NORTHWEST CALIFORNIA, INCLUDING THE FOLLOWING AREAS, MENDOCINO COAST, NORTHEASTERN MENDOCINO INTERIOR, NORTHERN HUMBOLDT COAST, NORTHWESTERN MENDOCINO INTERIOR, SOUTHEASTERN MENDOCINO INTERIOR, SOUTHERN HUMBOLDT INTERIOR, SOUTHERN TRINITY, SOUTHWESTERN HUMBOLDT, AND SOUTHWESTERN MENDOCINO INTERIOR. * FROM 10 PM PST THIS EVENING THROUGH TUESDAY AFTERNOON * WIDESPREAD RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE EXPECTED FROM MONDAY EVENING THROUGH LATE TUESDAY WITH LOCALLY HIGHER AMOUNTS OF 4 TO 6 INCHES POSSIBLE ACROSS HIGHER TERRAIN. * THE PRIMARY IMPACTS WILL BE LOCALIZED PONDING OF WATER ON LOW LYING ROADWAYS WITH POOR DRAINAGE...RISES OF ALL AREA SMALL STREAMS...RIVER FLOODING...AND POTENTIALLY ROCK AND MUD SLIDES ON MOUNTAIN ROADS. NEAR COAST FLOODING WILL BE ACCENTUATED BY HIGH TIDES. 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. && $$
3 follow-up statements
479 WGUS66 KEKA 062330 AAA FFAEKA FLOOD WATCH...UPDATED NATIONAL WEATHER SERVICE EUREKA CA 330 PM PST MON FEB 6 2017 ...THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A FLOOD WATCH FOR PORTIONS OF NORTHWEST CA FOR LATE TONIGHT THROUGH TUESDAY AFTERNOON... CAZ103-104-106-108>113-070730- /O.CON.KEKA.FA.A.0003.170207T0600Z-170208T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT- SOUTHERN HUMBOLDT INTERIOR-SOUTHERN TRINITY-MENDOCINO COAST- NORTHWESTERN MENDOCINO INTERIOR-NORTHEASTERN MENDOCINO INTERIOR- SOUTHWESTERN MENDOCINO INTERIOR-SOUTHEASTERN MENDOCINO INTERIOR- 330 PM PST MON FEB 6 2017 ...FLOOD WATCH REMAINS IN EFFECT FROM 10 PM PST THIS EVENING THROUGH TUESDAY AFTERNOON... THE FLOOD WATCH CONTINUES FOR * A PORTION OF NORTHWEST CALIFORNIA, INCLUDING THE FOLLOWING AREAS, MENDOCINO COAST, NORTHEASTERN MENDOCINO INTERIOR, NORTHERN HUMBOLDT COAST, NORTHWESTERN MENDOCINO INTERIOR, SOUTHEASTERN MENDOCINO INTERIOR, SOUTHERN HUMBOLDT INTERIOR, SOUTHERN TRINITY, SOUTHWESTERN HUMBOLDT, AND SOUTHWESTERN MENDOCINO INTERIOR. * FROM 10 PM PST THIS EVENING THROUGH TUESDAY AFTERNOON * WIDESPREAD RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE EXPECTED FROM MONDAY EVENING THROUGH LATE TUESDAY WITH LOCALLY HIGHER AMOUNTS POSSIBLE ACROSS HIGHER TERRAIN. * THE PRIMARY IMPACTS WILL BE LOCALIZED PONDING OF WATER ON LOW LYING ROADWAYS WITH POOR DRAINAGE...RISES OF ALL AREA SMALL STREAMS...RIVER FLOODING...AND POTENTIALLY ROCK AND MUD SLIDES ON MOUNTAIN ROADS. NEAR COAST FLOODING WILL BE ACCENTUATED BY HIGH TIDES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FLOOD WATCH MEANS THERE IS A POTENTIAL FOR FLOODING BASED ON CURRENT FORECASTS. YOU SHOULD MONITOR LATER FORECASTS AND BE ALERT FOR POSSIBLE FLOOD WARNINGS. THOSE LIVING IN AREAS PRONE TO FLOODING SHOULD BE PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP. && $$
620 WGUS66 KEKA 070720 FFAEKA FLOOD WATCH NATIONAL WEATHER SERVICE EUREKA CA 1120 PM PST MON FEB 6 2017 CAZ103-104-106-108>113-071530- /O.CON.KEKA.FA.A.0003.000000T0000Z-170208T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT- SOUTHERN HUMBOLDT INTERIOR-SOUTHERN TRINITY-MENDOCINO COAST- NORTHWESTERN MENDOCINO INTERIOR-NORTHEASTERN MENDOCINO INTERIOR- SOUTHWESTERN MENDOCINO INTERIOR-SOUTHEASTERN MENDOCINO INTERIOR- 1120 PM PST MON FEB 6 2017 ...FLOOD WATCH REMAINS IN EFFECT THROUGH TUESDAY AFTERNOON... THE FLOOD WATCH CONTINUES FOR... * A PORTION OF NORTHWEST CALIFORNIA, INCLUDING THE FOLLOWING AREAS, MENDOCINO COUNTY, NORTHERN HUMBOLDT COAST, SOUTHERN HUMBOLDT INTERIOR, SOUTHERN TRINITY, SOUTHWESTERN HUMBOLDT. * THROUGH TUESDAY AFTERNOON * WIDESPREAD RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE EXPECTED FROM TONIGHT THROUGH LATE TUESDAY WITH LOCALLY HIGHER AMOUNTS POSSIBLE ACROSS HIGHER TERRAIN. * THE PRIMARY IMPACTS WILL BE LOCALIZED PONDING OF WATER ON LOW LYING ROADWAYS WITH POOR DRAINAGE...RISES OF ALL AREA SMALL STREAMS...RIVER FLOODING...AND POTENTIALLY ROCK AND MUD SLIDES ON MOUNTAIN ROADS. NEAR COAST FLOODING WILL BE ACCENTUATED BY HIGH TIDES. 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. $$
262 WGUS66 KEKA 071437 FFAEKA Flood Watch National Weather Service Eureka CA 637 AM PST Tue Feb 7 2017 CAZ103-104-106-108>113-071545- /O.CAN.KEKA.FA.A.0003.000000T0000Z-170208T0000Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Northern Humboldt Coast-Southwestern Humboldt- Southern Humboldt Interior-Southern Trinity-Mendocino Coast- Northwestern Mendocino Interior-Northeastern Mendocino Interior- Southwestern Mendocino Interior-Southeastern Mendocino Interior- 637 AM PST Tue Feb 7 2017 ...FLOOD WATCH IS CANCELLED... The Flood Watch for a portion of northwest California has been cancelled. The heavier rainfall has exited the area, with precipitation to become more scattered in coverage during the remainder of the morning and into this afternoon...with very light precipitation totals expected through this time. $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 5, 4:54 PM PST | Severe Thunderstorm Warning | EKA | Humboldt | 36 min |
| Feb 5, 5:11 PM PST | Special Weather Statement | EKA | Humboldt | 34 min |
| Feb 5, 5:38 PM PST | Special Weather Statement | EKA | Humboldt | 37 min |
| Feb 5, 10:26 PM PST | Coastal Flood Advisory | EKA | Humboldt | 11 hr |
| Feb 6, 2:57 AM PST | Small Craft Advisory | EKA | 6 hr | |
| Feb 6, 9:36 AM PST | Gale Warning | EKA | 23 hr | |
| Feb 6, 9:38 AM PST | Wind Advisory | EKA | Humboldt, Mendocino, Trinity | 25 hr |
| Feb 6, 2:45 PM PST | Small Craft Advisory | EKA | 37 hr | |
| Feb 6, 3:19 PM PST | High Wind Watch | EKA | Del Norte, Humboldt, Trinity | 23 hr |
| Feb 6, 3:20 PM PST | River Flood Watch | EKA | Humboldt | 18 hr |
| Feb 6, 3:20 PM PST | River Flood Watch | EKA | Mendocino | 14 hr |
| Feb 6, 3:32 PM PST | River Flood Advisory | EKA | Mendocino | 36 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.