Alert archive / California / Flash Flood Warnings in 1997

Flash Flood Warning 1, NWS Eureka, CA

January 22, 1997Mendocino County, California

NWS Eureka, CA issued this flash flood warning at Jan 22, 1997, 8:50 AM PST for Mendocino County, California. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 22, 1997, 8:50 AM PST (16:50 UTC)
Expired
Jan 22, 1997, 3:00 PM PST
In force
6 hr
Issued by
NWS Eureka, CA
Area
Whole counties

County Mendocino County, CA

The nearest sounding before it

Oakland, CA (KOAK), launched 12:00Z, 4.8 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.

Skew-T log-pSkew-T log-p diagram, Oakland, CA at 12:00Z on 1997-01-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Oakland, CA at 12:00Z on 1997-01-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 131 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
542 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
131 m²/s²
0-3 km storm-relative helicity
285 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KEKA 221700
FFWEKA
CAC045-222300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SMALL RIVER AND STREAM FLOOD WARNING
NATIONAL WEATHER SERVICE EUREKA CA
850 AM PST WED JAN 22 1997

THE NATIONAL WEATHER SERVICE IN EUREKA CA HAS ISSUED A SMALL RIVER
AND STREAM FLOOD WARNING EFFECTIVE UNTIL 300 PM PST FOR PEOPLE IN THE
FOLLOWING LOCATIONS...

IN NORTHWESTERN CALIFORNIA

  ...SOUTHWESTERN MENDOCINO COUNTY
     INCLUDING GUALALA

THE GARCIA RIVER IN SOUTHWESTERN MENDOCINO COUNTY IS EXPECTED TO
LEAVE ITS BANKS THIS MORNING AND FLOOD PORTIONS OF HIGHWAY 1. 
PERIODS OF HEAVY RAIN WILL CONTINUE THROUGH THE MORNING TAPERING OFF
THIS AFTERNOON.

MOTORISTS IN SOUTHERN MENDOCINO COUNTY SHOULD BE ALERT TO WATER ON
THE ROADWAYS.  DO NOT DRIVE THROUGH WATER THAT IS RUNNING ACROSS THE
ROAD.

NEYMAN

Nearby

Flash Flood Warnings in California, 1997Every flash flood warning in 1997

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.