Alert archive / California / Flash Flood Warnings in 1986
Flash Flood Warning 3, NWS Sacramento, CA
NWS Sacramento, CA issued this flash flood warning at Feb 17, 1986, 4:00 AM PST for Tehama County, California. It was in force for 8 hr.
The area
The counties it named.
The facts
- Issued
- Feb 17, 1986, 4:00 AM PST (12:00 UTC)
- Expired
- Feb 17, 1986, 12:00 PM PST
- In force
- 8 hr
- Issued by
- NWS Sacramento, CA
- Area
- Whole counties
County Tehama County, CA
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Medford/Jackson, OR (KMFR), launched 12:00Z, 0.0 hours before the alert went out and 254 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
- 1069 m above ground
- 0-6 km bulk shear
- 103 kt
- 0-1 km storm-relative helicity
- 335 m²/s²
- 0-3 km storm-relative helicity
- 535 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Feb 17, 3:00 AM PST, 1 hour before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
3 AM PST MON FEB 17 1986
...WINTER STORM WARNING TODAY FOR HIGHER ELEVATIONS OF THE SIERRA
NEVADA FROM KIGS CANYON NORTHWARD...
HEAVY SNOW CONTINUES TO FALL IN THE SIERRA BUT SNOW LEVELS ARE
BEGINING TO RISE AND BY DAYBREAK SHOULD BE NEAR 6500 FEET IN THE
NORTH AND 8000 FEET IN THE SOUTH. THESE SNOW LEVELS SHOULD PERSIST
UNTIL TONIGHT WHEN THEY WILL BEGIN TO DROP AGAIN. THIS HEAVY WET
SNOW IS RESULTING IN DANGEROUS HIGHWAY TRAVELING CONDITIONS AND
AN EXTREME AVALANCE DANGER EXISTS...ESPECIALLY OVER THE EAST SLOPES.
ANYONE EXPECTING TO TRAVEL OVER THE NEXT FEW DAYS SHOULD MONITOR
THE LATEST WEATHER CONDITIONS FORECASTS AND ADVISORIES AND CHECK
WITH CALTRANS FOR LATEST ROAD CONDITIONS. TRAVELERS THROUGH MOUNTAIN
AREAS SHOULD BE ESPECIALLY PREPARED FOR DIFFICULT AND HAZARDOUS
DRIVING CONDITIONS.
FOR DETAILS ON FLASH FLOODING PLEASE SEE THE LATEST FLASH FLOOD
WATCH BULLETINS AND STATEMENTS.
FOR DETAILS ON RIVER FLOODING PLEASE SEE THE LATEST FLOOD WARNING
BULLETINS AND STATEMENTS.
ADDITIONAL STATEMENTS WILL BE ISSUED AS NEEDED.
NULLThe office that day
Everything else NWS Sacramento, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 17, 10:00 AM PST | Flash Flood Warning | STO | Tehama | 14 hr |
| Feb 17, 11:00 AM PST | Flash Flood Warning | STO | Shasta | 13 hr |
| Feb 17, 11:15 AM PST | Flash Flood Warning | STO | Trinity | 13 hr |
| Feb 17, 12:30 PM PST | Flash Flood Warning | STO | Nevada, Placer, Sierra, Yuba | 12 hr |
| Feb 17, 12:30 PM PST | Flash Flood Warning | STO | Alpine, Amador, Calaveras, El Dorado | 12 hr |
| Feb 17, 12:30 PM PST | Flash Flood Warning | STO | Tuolumne | 12 hr |
| Feb 17, 1:30 PM PST | Flash Flood Warning | STO | Nevada, Placer, Sierra, Yuba | 11 hr |
| Feb 17, 1:30 PM PST | Flash Flood Warning | STO | Alpine, Amador, Calaveras, El Dorado, Sacramento, San Joaquin | 11 hr |
| Feb 17, 1:30 PM PST | Flash Flood Warning | STO | Stanislaus, Tuolumne | 11 hr |
| Feb 17, 1:30 PM PST | Flash Flood Warning | STO | Colusa, Yolo | 11 hr |
| Feb 17, 1:30 PM PST | Flash Flood Warning | STO | Solano | 11 hr |
Nearby
Flash Flood Warnings in California, 1986Every flash flood warning in 1986
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.