Alert archive / Nevada / Flash Flood Warnings in 1990
Flash Flood Warning 6, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 13, 1990, 8:44 PM PDT for Clark County, Nevada. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Jul 13, 1990, 8:44 PM PDT (03:44 UTC)
- Expired
- Jul 13, 1990, 11:45 PM PDT
- In force
- 3 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, 3.7 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3451 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- 23 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 KLAS 140347 FFWLAS AZC015-NVC003-140645- BULLETIN - EBS ACTIVATION REQUESTED SEVERE THUNDERSTORM AND FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 844 PM PDT FRI JUL 13 1990 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A SEVERE THUNDERSTORM AND FLASH FLOOD WARNING EFFECTIVE UNTIL 1145 PM PDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...S... IN NORTHWEST ARIZONA ...NORTHWESTERN MOHAVE COUNTY IN SOUTH NEVADA ...EASTERN CLARK COUNTY THUNDERSTORMS ARE OCCURRING IN EASTERN CLARK COUNTY. STEADY WINDS OF 50 MPH HAVE BEEN REPORTED AT ECHO BAY AND TEMPLE BAR IN THE NORTHERN PARTS OF THE LAKE MEAD RECREATIONAL AREA. ALSO THE VALLEY OF FIRE HAS REPORTED 2 TO 3 FEET OF WATER ON THE ROADWAYS ALONG WITH GALE FORCE WINDS. THE STORMS ARE EXPECTED TO REMAIN ACTIVE IN EASTERN CLARK COUNTY FOR THE NEXT TWO HOURS. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS. IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A STRONG BUILDING. DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN... AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. STAYED TUNED TO NOAA WEATHER RADIO...TELEVISION OR LOCAL RADIO FOR UDATES ON THIS WEATHER SITURATION. EHB/0346Z
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 13, 5:06 PM PDT, 3 hours 38 minutes before
NVZ008-009-140400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 505 PM PDT FRI JULY 13 1990 ...WIDELY SCATTERED THUNDERSTORMS CONTINUE ACROSS CLARK COUNTY... LAS VEGAS RADAR AND LIGHTNING DETECTION SENSORS INDICATED WIDELY SCATTERED THUNDERSTORMS ACROSS CLARK COUNTY. LITTLE MOVEMENT WAS NOTED OVER THE PAST FEW HOURS AND CURRENT INDICATIONS ARE THAT THEY WILL PERSIST INTO THIS EVENING THEN DISAPATE AFTER SUNSET. SOME OF THESE THUNDERSTORMS MAY PRODUCE BRIEF HEAVY RAINS...STRONG GUSTY WINDS...BLOWING DUST AND DEADLY LIGHTNING. PERSONS ENGAGED IN OUTDOOR ACTIVITES IN CLARK COUNTY THE REST OF THIS AFTERNOON AND EVENING ARE URGED TO KEEP AN EYE ON THE SKY AND TAKE NECESSARY PRECAUTIONS WHEN THUNDERSTORMS MOVE INTO YOUR AREA. DO NOT ATTEMPT TO CROSS FLOODED ROADWAYS. LISTEN TO NOAA WEATHER RADIO...COMMERCIAL TELEVISION AND RADIO FOR ADDITIONAL STATEMENTS AND FORECASTS CONCERNING THIS SITUATION. HCB/0000Z
Special weather statement, Jul 13, 8:20 PM PDT, 24 minutes before
NVZ008-009-140800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 805 PM PDT FRI JULY 13 1990 ...WIDELY SCATTERED THUNDERSTORMS CONTINUE ACROSS CLARK COUNTY AND SOUTH EAST LINCOLN COUNTY... LAS VEGAS RADAR AND LIGHTNING DETECTION SENSORS INDICATED WIDELY SCATTERED THUNDERSTORMS ACROSS CLARK AND SOUTHEAST LINCOLN COUNTIES. THE MOST ACTIVE THUNDERSTORMS ARE IN THE LOGANDALE/MOAPA AREAS IN NORTH EAST CLARK COUNTY. NATIONAL PARKS SERVICE REPORTS ECHO BAY AND OVERTON BEACH HAVE WINDS GUSTING TO 50 MPH. TEMPLE BAR HAS SOUTHEAST WINDS 20 TO 30 MPH. KATHERINES LANDING SOUTH WINDS 10 TO 20 MPH. NO FLOODING HAS BEEN REPORTED. SOME OF THESE THUNDERSTORMS MAY PRODUCE BRIEF HEAVY RAINS...STRONG GUSTY WINDS...BLOWING DUST AND DEADLY LIGHTNING. PERSONS ENGAGED IN OUTDOOR AVTIVITY IN CLARK COUNTY AND LAKE MEAD/ LAKE MOHAVE RECREATION AREAS THE REST OF TONIGHT ARE URGED TO USE EXTREME CAUTION WHEN THUNDERSTORMS MOVE INTO YOUR AREA. DO NOT ATTEMPT TO CROSS FLOODED ROADWAYS. LISTEN TO NOAA WEATHER RADIO...COMMERCIAL TELEVISION AND RADIO FOR ADDITIONAL STATEMENTS AND FORECASTS CONCERNING THIS SITUATION. HCB/0317Z
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 8:44 PM PDT | Severe Thunderstorm Warning | VEF | Clark | 3 hr |
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.