Alert archive / California / Flash Flood Warnings in 1997

Flash Flood Warning 13, NWS Sacramento, CA

January 22, 1997Yuba County, California

NWS Sacramento, CA issued this flash flood warning at Jan 22, 1997, 11:49 PM PST for Yuba 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, 11:49 PM PST (07:49 UTC)
Expired
Jan 23, 1997, 6:00 AM PST
In force
6 hr
Issued by
NWS Sacramento, CA
Area
Whole counties

County Yuba County, CA

The nearest sounding before it

Oakland, CA (KOAK), launched 00:00Z, 7.8 hours before the alert went out and 186 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 00:00Z on 1997-01-23Temperature 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 00:00Z on 1997-01-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 357 square meters per square second.19395878Sfc1 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
541 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
357 m²/s²
0-3 km storm-relative helicity
545 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 KSAC 230753
FFWSAC
CAC115-231400-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SACRAMENTO CA
1149 PM PST WED JAN 22 1997

THE NATIONAL WEATHER SERVICE IN SACRAMENTO CA HAS ISSUED A FLASH
FLOOD WARNING EFFECTIVE UNTIL 600 AM PST FOR PEOPLE IN THE FOLLOWING
LOCATIONS...

IN NORTHERN CALIFORNIA

  ...SOUTHERN YUBA COUNTY

A LEVEE BREAK HAS OCCURRED ON DRY CREEK NEAR THE TOWN OF WHEATLAND IN
SOUTHERN YUBA COUNTY. THIS HAS OCCURRED ON THE SOUTH SIDE OF DRY
CREEK 1/4 MILE EAST OF JASPER LANE. THESE WATERS ARE EXPECTED TO
AFFECT THE TOWN OF WHEATLAND. 

SIMS

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 22, 5:20 PM PSTFlash Flood WarningSTOSacramento, Solano, Yolo4 hr
Jan 22, 5:20 PM PSTFlash Flood WarningSTOAmador, El Dorado4 hr
Jan 22, 5:20 PM PSTFlash Flood WarningSTONevada4 hr

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.