Alert archive / California / Flash Flood Warnings in 1990
Flash Flood Warning 3, NWS Los Angeles, CA
NWS Los Angeles, CA issued this flash flood warning at Jul 13, 1990, 11:05 PM PDT for Riverside County, California. It was in force for 115 min.
The area
The counties it named.
The facts
- Issued
- Jul 13, 1990, 11:05 PM PDT (06:05 UTC)
- Expired
- Jul 14, 1990, 1:00 AM PDT
- In force
- 115 min
- Issued by
- NWS Los Angeles, CA
- Area
- Whole counties
County Riverside 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
San Diego, CA (KNKX), launched 00:00Z, 6.1 hours before the alert went out and 154 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
- 2692 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 96 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 KLAX 140608
FFWLAX
CAC071-065-140800-
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LOS ANGELES CA
1105 PM PDT FRI JUL 13 1990
THE NATIONAL WEATHER SERVICE IN LOS ANGELES HAS ISSUED A SEVERE
THUNDERSTORM AND FLASH FLOOD WARNING EFFECTIVE UNTIL 1 AM PDT
SATURDAY MORNING FOR PEOPLE IN THE FOLLOWING LOCATIONS.
IN SOUTH CALIFORNIA
...EASTERN AND CENTRAL SAN BERNARDINO COUNTY
...EASTERN AND CENTRAL RIVERSIDE COUNTY
AT 11 PM RADAR AND SATELLITE IMAGERY INDICATED A STRONG THUNDERSTORM
COMLEX COVERING WESTERN ARIZONA AND EASTERN CALIFORNIA. THUNDERSTORMS
WITH STRONG GUSTY WINDS...LARGE HAIL...DANGEROUS LIGHTNING AND HEAVY
RAIN WILL CONTINUE IN THE WARNING AREA FOR THE NEXT SEVERAL HOURS.
.
THE STORM CENTER IS MOVING TOWARDS THE SOUTHWEST AND MAY SPREAD INTO
CENTRAL SAN BERNARDINO AND RIVERSIDE COUNTIES BY MIDNIGHT.
FREQUENT LIGHTNING IS OCCURRING ALONG THE COLORADO RIVER AREA AT THE
PRESENT TIME...ESPECIALLY NEAR BULLHEAD CITY ARIZONA.
IN CALIFORNIA...COMMUNITIES DIRECTLY IN THE PATCH OF THE STORM INCLUDE
...NEEDLES...TOPOCK...THE WEST SHORE OF LAKE HAVASU...BIG RIVER...AND
BLYTHE.
ROADWAYS INCLUDE...INTERSTATE 40...INTERSTATE 10...STATE HIGHWAYS 95
AND 62.
AVOID THE DANGEROUS LIGHTNING...AND SEEK INSIDE SHELTER. IF DRIVING
...KNOW THE DEPTH OF WATER IN A DIP OR FLOODED AREA BEFORE ATTEMPTING
TO CROSS. IF YOUR VEHICLE STALLS...ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND. RAPIDLY RISING WATER MAY ENGULF YOUR VEHICLE AND
PASSANGERS...SWEEPING YOU AWAY.
GREBEThe office that day
Everything else NWS Los Angeles, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 9:36 PM PDT | Flash Flood Warning | LOX | San Bernardino | 3 hr |
| Jul 13, 9:36 PM PDT | Severe Thunderstorm Warning | LOX | San Bernardino | 3 hr |
| Jul 13, 11:05 PM PDT | Flash Flood Warning | LOX | San Bernardino | 115 min |
| Jul 13, 11:05 PM PDT | Severe Thunderstorm Warning | LOX | San Bernardino | 115 min |
| Jul 13, 11:05 PM PDT | Severe Thunderstorm Warning | LOX | Riverside | 115 min |
| Jul 14, 1:00 AM PDT | Flash Flood Warning | LOX | San Bernardino | 2 hr |
| Jul 14, 1:00 AM PDT | Flash Flood Warning | LOX | Riverside | 2 hr |
| Jul 14, 1:00 AM PDT | Severe Thunderstorm Warning | LOX | Riverside | 2 hr |
| Jul 14, 1:00 AM PDT | Severe Thunderstorm Warning | LOX | San Bernardino | 2 hr |
Nearby
Flash Flood Warnings in California, 1990Every flash flood warning in 1990
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.