Alert archive / California / Flash Flood Warnings in 1992
Flash Flood Warning 2, NWS Sacramento, CA
NWS Sacramento, CA issued this flash flood warning at Jul 16, 1992, 5:12 PM PDT for Tuolumne County, California. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Jul 16, 1992, 5:12 PM PDT (00:12 UTC)
- Expired
- Jul 16, 1992, 7:15 PM PDT
- In force
- 2 hr
- Issued by
- NWS Sacramento, CA
- Area
- Whole counties
County Tuolumne County, CA
The nearest sounding before it
Oakland, CA (KOAK), launched 00:00Z, 0.2 hours before the alert went out and 200 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
- 1886 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 18 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 KSAC 170009 FFWSAC CAC017-061-109-170215- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SACRAMENTO CA 512 PM PDT THU JUL 16 1992 THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 715 PM PDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...S... IN CENTRAL CALIFORNIA ...EASTERN EL DORADO COUNTY...EASTERN PLACER COUNTY IN EAST CENTRAL CALIFORNIA ...TUOLUMNE COUNTY THUNDERSTORMS WITH VERY HEAVY RAIN SHOWERS WERE LOCATED NEAR EMIGRANT GAP...WHICH IS ALONG HIGHWAY 80 AND NEAR STRAWBERRY IN TUOLUMNE COUNTY ALONG HIGHWAY 108. THESE STORMS WERE SHOWING LITTLE MOVEMENT AND THE STRONG RAINS BEING PRODUCED SHOULD CAUSE FLOODING OF STREAMS IN THE AREA. THIS WARNING IS IN EFFECT UNTIL 7 PM...WHEN STORMS SHOULD BEGIN TO DECREASE IN INTENSITY. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. CRONIN
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, Jul 16, 2:37 PM PDT, 2 hours 35 minutes before
CAZ009-162245- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE SACRAMENTO CA 235 PM PDT THU JUL 16 1992 ...THUNDERSTORM WITH VERY HEAVY RAIN OVER THE SIERRA NEVADA... AT 225 PM PDT...AN ISOLATED THUNDERSTORM WITH HEAVY RAINSHOWERS WAS IN THE SIERRA NEVADA...NEAR LIBERTY HILL..ABOUT 50 MILES SOUTH OF LAKE TAHOE. THIS SHOWER WAS PART OF A MUCH LARGER AREA OF SHOWERS AND THUNDERSHOWERS THAT COVERED THE SIERRA NEVADA FROM BURNEY SOUTHEAST TO 30 MILES SOUTHWEST OF BISHOP. SHOWERS AND THUNDERSHOWERE WERE ALSO OBSERVED ALONG THE COASTAL RANGE FROM UKIAH NORTH TO 30 MILES WEST OF RED BLUFF. LITTLE MOVEMENT HAS BEEN OBSERVED. ECC
Special weather statement, Jul 16, 3:38 PM PDT, 1 hour 34 minutes before
CAZ009-162345- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE SACRAMENTO CA 335 PM PDT THU JUL 16 1992 ...THUNDERSTORMS WITH VERY HEAVY RAIN OVER THE SIERRA NEVADA... AT 325 PM PDT...AN ISOLATED THUNDERSTORM WITH HEAVY RAINSHOWERS WAS IN THE SIERRA NEVADA...EAST OF LIBERTY HILL..ABOUT 50 MILES SOUTH OF LAKE TAHOE. ALSO A THUNDERSTORM WITH HEAVY RAIN WAS OBSERVED NEAR MAMMOTH LAKES. THESE SHOWERS WERE PART OF A MUCH LARGER AREA OF SHOWERS AND THUNDERSTORMS THAT EXTENDED FROM BURNEY SOUTH TO 45 MILES NORTHEAST OF VISALIA. SHOWERS AND THUNDERSHOWERE WERE ALSO OBSERVED ALONG THE COASTAL RANGE FROM UKIAH NORTH TO 30 MILES WEST OF RED BLUFF. LITTLE MOVEMENT HAS BEEN OBSERVED. PERSONS PLANNING TRAVEL TO THE SIERRA NEVADA SHOULD BE PREPARED FOR LOCALLY HEAVY RAIN..FREQUENT LIGHTNING..POSSIBLE HAIL AND GUSTY WINDS AND USE CAUTION ON THE ROADWAYS. ECC
Special weather statement, Jul 16, 4:53 PM PDT, 19 minutes before
CAZ009-170045- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE SACRAMENTO CA 430 PM PDT THU JUL 16 1992 ...STRONG THUNDERSTORMS OVER THE SIERRA NEVADA... AT 425 PM PDT...THUNDERSTORMS WITH VERY HEAVY RAINSHOWERS WERE LOCATED IN THE SIERRA NEVADA NEAR EMIGRANT GAP ALONG HIGHWAY 80 AND NEAR STRAWBERRY IN TUOLUMNE COUNTY. RADAR INDICATES THAT THESE AREAS HAVE EXTREMELY HEAVY RAIN. THE THE STORMS NOT MOVING MUCH...FLASH FLOODING IS POSSIBLE. THUNDERSTORMS HAVE BEEN FALLING IN THE SIERRA NEVADA FROM SUSANVILLE TO KINGS CANYON PARK AND IN THE COASTAL RANGE FROM UKIAH TO WEAVERVILLE. THE STORMS ARE NOT MOVING MUCH. CRONIN
The office that day
Everything else NWS Sacramento, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 5:12 PM PDT | Flash Flood Warning | STO | El Dorado, Placer | 2 hr |
Nearby
Flash Flood Warnings in California, 1992Every flash flood warning in 1992
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.