Alert archive / California / Flash Flood Warnings in 1990
Flash Flood Warning 10, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 14, 1990, 11:50 PM PDT for Inyo County, California. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Jul 14, 1990, 11:50 PM PDT (06:50 UTC)
- Expired
- Jul 15, 1990, 2:00 AM PDT
- In force
- 2 hr
- Issued by
- NWS Las Vegas, NV
- Area
- Whole counties
County Inyo 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
Mercury/Desert R, NV (KDRA), launched 00:00Z, 6.8 hours before the alert went out and 127 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
- 20 J/kg
- Mixed-layer CIN
- -368 J/kg
- Mixed-layer LCL
- 2607 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 69 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 150719 COR
FFWLAX
CAC027-071-150900-
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LOS ANGELES CA
1220 AM PDT SUN JUL 15 1990 ...CORRECTION...
THE NATIONAL WEATHER SERVICE IN LOS ANGELES HAS ISSUED A SEVERE
THUNDERSTORM AND FLASH FLOOD WARNING EFFECTIVE UNTIL 2 AM SUNDAY
MORNING FOR PEOPLE IN THE FOLLOWING LOCATIONS...
IN EASTERN CALIFORNIA
...SOUTHEASTERN INYO COUNTY
...EASTERN SAN BERNARDINO COUNTY
THE WARNING INCLUDES THE COMMUNITIES OF...
.
DEATH VALLEY
SHOSHONE
TECOPA
BAKER
KELSO
ESSEX
NIPTON
IVANPAH
GOFFS
NEEDLES
CADIZ
WEST LAKE HAVASU
AND PORTIONS OF
INTERSTATE 15
INTERSTATE 40
STATE HIGHWAY 95
AT 1130 PM...RADAR AND SATELLITE INDICATED A LINE OF VERY HEAVY THUNDER
STORMS EXTENDING FROM LAKE MOJAVE IN ARIZONA TO ESSEX IN CALIFORNIA.
THE STORMS ARE MOVING TOWARDS THE SOUTHEAST AT 20 MILES AN HOUR WITH
HEAVY RAIN CAPABLE OF PRODUCING FLASH FLOODS AND STRONG GUSTY WINDS
IN EXCESS OF 55 MILES AN HOUR.
THIS IS A DANGEROUS STORM. IF YOU ARE OUTSIDE NEAR A STREAM OR WASH
...HEAD FOR HIGHER GROUND. AVOID AREAS BELOW CANYONS AND DO NOT
ATTEMPT TO DRIVE OVER INUNDATED ROADS. STRONG GUSTY WINDS ARE CAPABLE
OF OVERTURNING UNSECURED MOBILE HOMES. SEEK INSIDE SHELTER IN A SAFE
PLACE.
ADDITIONAL INFORMATION WILL BE ISSUED AT 1245 AM SUNDAY MORNING.
GREBEWhat 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
Local storm report, Jul 14, 7:40 PM PDT, 4 hours 10 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS, NV
734 PM PDT SAT JUL 14 1990
TIME PDT PLACE EVENT
725 PM BEATTY (SPOTTER) RAIN BEGAN AROUND 630 PM AND 1.47
INCHES OF RAIN RECORDED IN 1 HOUR.
RUNNING WATER ACROSS HER PROPERTY
HAS STOPPED. WINDS ARE CALM.
END
HCB/0240ZThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 10:02 PM PDT | Flash Flood Warning | VEF | Inyo | 118 min |
| Jul 14, 10:02 PM PDT | Severe Thunderstorm Warning | VEF | Inyo | 118 min |
| Jul 14, 11:50 PM PDT | Severe Thunderstorm Warning | VEF | Inyo | 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.