Alert archive / California / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 4, NWS Las Vegas, NV
NWS Las Vegas, NV issued this severe thunderstorm warning at Jul 14, 1990, 10:02 PM PDT for Inyo County, California. It was in force for 118 min.
The area
The counties it named.
The facts
- Issued
- Jul 14, 1990, 10:02 PM PDT (05:02 UTC)
- Expired
- Jul 15, 1990, 12:00 AM PDT
- In force
- 118 min
- 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, 5.0 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
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 severe thunderstorm 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 14, 4:34 PM PDT, 5 hours 28 minutes before
NVZ008-009-150300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 430 PM PDT SAT JUL 14 1990 ...THUNDERSTORMS AND SHOWERS CONTINUE OVER MOST AREAS IN SOUTHERN NEVADA... RADAR AND LIGHTNING DETECTION EQUIPMENT SHOWED SHOWERS AND THUNDER- STORMS OVER MOST OF SOUTHERN NEVADA WITH THE MOST ACTIVE THUNDERSTORMS IN SOUTHWESTERN LINCOLN COUNTY. THESE THUNDERSTORMS ARE EXPECTED TO CONTINUE INTO TONIGHT. THE AIRMASS IS VERY MOIST. SOME OF THE THUNDERSTORMS MAY PRODUCE HEAVY RAIN..STRONG GUSTY WINDS TO 40 MILES AN HOUR..DEADLY LIGHTNING AND HAIL. LOCAL FLOODING OF LOW LYING AREAS AND NORMALLY DRY WASHES IS POSSIBLE. REMEMBER..NEVER ATTEMPT TO CROSS FLOODED ROADS ON FOOT OR IN YOUR CAR. GUSTY WINDS ASSOCIATED WITH THUNDERSTORMS WILL CAUSE LOCAL AREAS OF IF LIGHTNING IS NEARBY TAKE SHELTER INDOORS OR IN YOUR CAR. NEVER SEEK SHELTER FROM LIGHTNING UNDER A TREE. PERSONS ENGAGED IN OUTDOOR ACTIVITES IN SOUTHERN NEVyADA ARE URRGED TO USE CAUTION AND KEEP AN EYE ON THE SKY. LISTEN TO COMMERCIAL RADIO...TELEVISION OR NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION. HCB/2333Z
Special weather statement, Jul 14, 4:38 PM PDT, 5 hours 24 minutes before
NVZ008-009-150300- SPECIAL WEATHER STATEMENT...CORRECTION... NATIONAL WEATHER SERVICE LAS VEGAS NV 430 PM PDT SAT JUL 14 1990 ...THUNDERSTORMS AND SHOWERS CONTINUE OVER MOST AREAS IN SOUTHERN NEVADA... RADAR AND LIGHTNING DETECTION EQUIPMENT SHOWED SHOWERS AND THUNDER- STORMS OVER MOST OF SOUTHERN NEVADA WITH THE MOST ACTIVE THUNDERSTORMS IN SOUTHWESTERN LINCOLN COUNTY. THESE THUNDERSTORMS ARE EXPECTED TO CONTINUE INTO TONIGHT. THE AIRMASS IS VERY MOIST. SOME OF THE THUNDERSTORMS MAY PRODUCE HEAVY RAIN..STRONG GUSTY WINDS TO 40 MILES AN HOUR..DEADLY LIGHTNING AND HAIL. LOCAL FLOODING OF LOW LYING AREAS AND NORMALLY DRY WASHES IS POSSIBLE. REMEMBER..NEVER ATTEMPT TO CROSS FLOODED ROADS ON FOOT OR IN YOUR CAR. GUSTY WINDS ASSOCIATED WITH THUNDERSTORMS WILL CAUSE LOCAL AREAS OF BLOWING SAND AND DUST REDUCING VISIBILITIES. IF LIGHTNING IS NEARBY TAKE SHELTER INDOORS OR IN YOUR CAR. NEVER SEEK SHELTER FROM LIGHTNING UNDER A} TREE. PERSONS ENGAGED IN OUTDOOR ACTIVITES IN SOUTHERN NEVADA ARE URRGED TO USE CAUTION AND KEEP AN EYE ON THE SKY. LISTEN TO COMMERCIAL RADIO...TELEVISION OR NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION. HCB/2333Z
Local storm report, Jul 14, 7:40 PM PDT, 2 hours 22 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, 11:50 PM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Jul 14, 11:50 PM PDT | Severe Thunderstorm Warning | VEF | Inyo | 2 hr |
Nearby
Severe Thunderstorm Warnings in California, 1990Every severe thunderstorm 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.