Alert archive / California / Flash Flood Watches in 2021

Flash Flood Watch 1, NWS Eureka, CA

October 21, 2021

NWS Eureka, CA issued this flash flood watch at Oct 21, 2021, 8:17 PM PDT. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Oct 21, 2021, 8:17 PM PDT (03:17 UTC)
Expired
Oct 22, 2021, 6:23 AM PDT
In force
10 hr
Issued by
NWS Eureka, CA
Flood severity
None

The text

As transmitted.

806 
WGUS66 KEKA 220317
FFAEKA

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Eureka CA
817 PM PDT Thu Oct 21 2021

...Flash Flood Watch for the River Complex Burn Scar...

.Areas of moderate to occasionally heavy rain have been passing
over the area this evening. A band of particularly heavy rain is
expected to pass by in the vicnity of the River Complex Burn Scar
overnight into the pre-dawn hours on Friday. Potential rainfall
rates exceeding a half inch per hour, and possibly up to around
0.8 inches per hour are anticipated. This will enhance the
potential for debris flow in some of the drainages around the burn
scar, particularly near Coffee Creek. 

CAZ107-221500-
/O.NEW.KEKA.FF.A.0001.211022T0317Z-211022T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northern Trinity-
817 PM PDT Thu Oct 21 2021

...FLASH FLOOD WATCH IN EFFECT UNTIL 8 AM PDT FRIDAY...

The National Weather Service in Eureka has issued a

* Flash Flood Watch for a portion of northwest California, 
  including the following area, Northern Trinity. 

* Until 8 AM PDT Friday

* Periods of heavy rainfall are forecasted over the River Complex
  Burn Scar which may lead to flash flooding and debris flows,
  particularly in the vicinity of the Coffee Creek drainage.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.

&&

$$
1 follow-up statement
415 
WGUS66 KEKA 221323
FFAEKA

Flood Watch
National Weather Service Eureka CA
623 AM PDT Fri Oct 22 2021

CAZ107-221430-
/O.CAN.KEKA.FF.A.0001.000000T0000Z-211022T1500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Northern Trinity-
623 AM PDT Fri Oct 22 2021

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for northern Trinity County has been cancelled.

The Flood Watch is cancelled. Flooding is no longer expected to pose 
a threat. However, heavy rains are forecast to return on Sunday.

$$

SEC

The office that day

Everything else NWS Eureka, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 21, 9:01 PM PDTSmall Craft AdvisoryEKA50 hr
Oct 22, 2:58 PM PDTGale WatchEKA12 hr
Oct 22, 2:58 PM PDTHazardous Seas WatchEKA24 hr
Oct 22, 3:02 PM PDTWind AdvisoryEKADel Norte, Humboldt, Mendocino47 hr
Oct 22, 3:30 PM PDTFlood WatchEKADel Norte, Humboldt, Lake, Mendocino, Trinity53 hr

Nearby

Flash Flood Watches in California, 2021Every flash flood watch in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.