Alert archive / Nevada / Flash Flood Warnings in 1990
Flash Flood Warning 17, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 16, 1990, 12:00 AM PDT for Clark County, Nevada. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Aug 16, 1990, 12:00 AM PDT (07:00 UTC)
- Expired
- Aug 16, 1990, 2:00 AM PDT
- In force
- 2 hr
- Issued by
- NWS Las Vegas, NV
- Area
- Whole counties
County Clark County, NV
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, 7.0 hours before the alert went out and 99 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
- 366 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 2247 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 33 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 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, Aug 15, 10:30 PM PDT, 1 hour 30 minutes before
NVZ008-009-161000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 1030 PM PDT WED AUG 15 1990 ...THUNDERSTORMS LINGERING OVER SOUTHERN NEVADA... AT 1030 PM PDT THE LAS VEGAS WEATHER RADAR AND LIGHTNING DETECTION SENSORS SHOW THAT THUNDERSTORMS ARE STILL OCCURRING OVER CLARK...NYE ...ESMERALDA AND LINCOLN COUNTIES IN SOUTHERN NEVADA. SOME OF THESE THUNDERSTORMS MAY PRODUCE HEAVY RAIN...STRONG GUSTY WINDS...DEADLY LIGHTNING AND HAIL. LOCAL FLOODING OF LOW LYING AREAS AND NORMALLY DRY WASHES IS POSSIBLE TONIGHT. REMEMBER...NEVER ATTEMPT TO CROSS A FLOODED ROADWAY...EITHER ON FOOT OR IN YOUR CAR. IF LIGHTNING IS NEARBY SEEK SHELTER INDOORS OR IN YOUR CAR. NEVER SEEK SHELTER FROM LIGHTNING UNDER A TREE. . STRONG GUSTY WINDS ASSOCIATED WITH THUNDERSTORMS MAY CAUSE AREAS OF BLOWING DUST AND SAND WHICH WILL REDUCE VISIBILITY AT TIMES. MOTORISTS AND PERSONS ENGAGED IN OUTDOOR ACTIVITIES IN SOUTHERN NEVADA TONIGHT ARE URGED TO USE CAUTION AND TAKE NECESSARY PRECAUTIONS IF THUN- DERSTORMS MOVE INTO YOUR AREA. BOATERS ON LAKE MEAD AND LAKE MOHAVE ARE REMINDED THAT A LAKE WIND ADVISORY IS IN EFFECT TONIGHT FOR GUSTY WINDS AROUND THUNDERSTORMS. LISTEN TO COMMERCIAL RADIO...TELEVISION OR NOAA WEATHER RADIO FOR THE LATEST FORECASTS OR ADDITIONAL STATEMENTS. DJR/0530Z
Special weather statement, Aug 15, 11:36 PM PDT, 24 minutes before
NVZ009-160800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 1135 PM PDT WED AUG 15 1990 ...THUNDERSTORMS ARE MOVING INTO EASTERN CLARK COUNTY... AT 1130 PM PDT RADAR AND LIGHTNING DETECTION EQUIPMENT SHOWED THUNDER- STORMS MOVING INTO EASTERN CLARK CLARK COUNTY. THE THUNDERSTORMS ARE APPROACHING MOAPA...GLENDALE AND LOGANDALE. THEY WILL MOVE SOUTHEAST TOWARD OVERTON AND OVERTON BEACH AND ON TO ECHO BAY AND TEMPLE BAR. THUNDERSTORMS ARE EXPECTED TO CONTINUE OVER NORTHERN AND EASTERN CLARK COUNTY FOR THE NEXT FEW HOURS. SOME OF THEM MAY PRODUCE HEAVY RAIN... STRONG GUSTY WINDS...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 DUST AND SAND. 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 NORTHERN AND EASTERN CLARK COUNTY TONIGHT ARE URGED TO USE CAUTION AND KEEP AN EYE ON THE SKY. LISTEN TO COMMERCIAL RADIO...TELEVISION OR NOAA WEATHER RADIO FOR THE .LATEST WEATHER INFORMATION. DJR/0635Z
Nearby
Flash Flood Warnings in Nevada, 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.