Alert archive / California / Flash Flood Warnings in 1986
Flash Flood Warning 39, NWS Sacramento, CA
NWS Sacramento, CA issued this flash flood warning at Mar 8, 1986, 9:55 AM PST for El Dorado County, Placer County, California. It was in force for 6 hr.
The area
The counties it named.
The facts
- Issued
- Mar 8, 1986, 9:55 AM PST (17:55 UTC)
- Expired
- Mar 8, 1986, 4:00 PM PST
- In force
- 6 hr
- Issued by
- NWS Sacramento, CA
- Area
- Whole counties
Counties El Dorado County, CA, Placer 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
Oakland, CA (KOAK), launched 12:00Z, 5.9 hours before the alert went out and 191 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
- 1 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 604 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- -55 m²/s²
- 0-3 km storm-relative helicity
- 32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSFO 081835 FFWSAC BULLETIN-EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN FRANCISCO, CA 1035 AM PST SAT MAR 08 1986 CAC005-009-017-061-109-090000- BULLETIN-EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SACRAMENTO CA 955 AM PST SAT MAR 08 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 4 PM SATURDAY FOR THE COUNTIES OF... AMADOR..CALAVERAS...EL DORADO...PLACER..TUOLUMNE NUMEROUS REPORTS OF LOCAL FLOODING HAVE BEEN REPORTED IN TOULUMNE COUNTY. RADAR IS PICKING UP SEVERAL SLOW MOVING HEAVY THUNDERSHOWERS AT 945 THIS MORNING AND THESE SHOWERS ARE EXPECTED TO CONTINUE INTO THE AFTERNOON. LOCAL FLOODING IN OTHER AREAS NOT YET AFFECTED IS POSSIBLE AS THESE THUNDERSHOWERS CONTINUE TO MOVE THROUGH THE SIERRA FOOTHILLS. PERSONS IN THE WARNING AREA ARE URGED TO STAY INFORMED ON LOCAL WEATHER CONDITIONS AND BE AWARE OF THE POSSIBILITY OF RAPIDLY RISING WATERS. FURTH ER STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT. RLH/1755 03/08/86
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, Mar 8, 4:00 AM PST, 5 hours 55 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN FRANCISCO CA 4 AM PST SAT MAR 8 1986 ...FLASH FLOOD WATCH CONTINUED UNTIL 9AM FOR THE COASTAL MOUNTAINS OF SAN MATEO...SANTA CLARA...AND SANTA CRUZ COUNTIES AND FOR LAKE ...SOUTHERN HUMBOLDT...MENDOCINO...MARIN...NAPA AND SONOMA COUNTIES. ...FLASH FLODD WATCH UNTIL 10 AM TODAY FOR TEHAMA AND FOR SOUTHERN SHASTA COUNTIES... ...FLASH FLOOD WATCH UNTIL 3PM TODAY FOR THE WEST SLOPE OF THE SIERRA NEVADA FOR THE COUNTIES OF PLUMAS...SIERRA...NEVADA... PLACER...EL DORADO...AMADOR...CALAVERAS AND TUOLUMNE. ...HIGH WIND WARNING THIS MORNING FOR THE SAN FRANCISCO BAY AREA... ...WINTER STORM WARNING TODAY AND TONIGHT FOR THE SIERRA NEVADA NORTH OF YOSEMITE PARK... ...TRAVELERS ADVISORY TODAY AND TONIGHT FOR THE SIERRA NEVADA FROM YOSEMITE PARK SOUTH... A MAJOR WINTER STORM HAS BROUGHT NORTHERN CALIFORNIA HEAVY RAINS AT THE LOWER ELEVATIONS WITH HEAVY SNOW AT THE HIGHER ELEVATIONS OF THE SIERRA NEVADA...MAINLY NORTH OF YOSEMITE. THE HEAVIEST AREAS OF RAIN EARLY THIS MORNING WERE LOCATED FROM UKIAH TO BIG SUR AND IN THE MOUNTAINS FROM MT SHASTA TO NEAR YOSEMITE. SNOW LEVELS WILL BE LOWERING TO 4000 FEET NEAR THE OREGON BORDER TO ABOUT 6000 FEET OVER THE SOUTHERN SIERRA NEVADA BY MID NIGHT. PERSONS PLANNING TO TRAVEL INTO THE SIERRA NEVADA TODAY AND TONIGHT SHOULD CARRY CHAINS. IN ADDITION...MOTORISTS SHOULD CHECK THE LATEST FORECAST AND ROAD REPORTS BEFORE DEPARTING. STRONG WINDS ACCOMPANYING THE STORM SYSTEM DEVELOPED DURING THE NIGHT IN THE SAN FRANCISCO BAY AREA. PERSONS DRIVING SMALL CARS OR HIGH PROFILE VEHICLES SHOULD BE ALERT FOR STRONG WINDS THROUGH THIS MORNING IN THE SAN FRANCISCO BAY AREA. FURTHER STATMENTS WILL BE ISSUED AS NEEDED. HELLER
The office that day
Everything else NWS Sacramento, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 8, 9:55 AM PST | Flash Flood Warning | STO | Calaveras, Tuolumne | 6 hr |
| Mar 8, 9:55 AM PST | Flash Flood Warning | STO | Amador | 6 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.