Alert archive / Arizona / Flash Flood Warnings in 1992
Flash Flood Warning 10, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 30, 1992, 1:00 PM MST for Mohave County, Arizona; Clark County, Nevada. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- Aug 30, 1992, 1:00 PM MST (20:00 UTC)
- Expired
- Aug 30, 1992, 2:00 PM MST
- In force
- 60 min
- Issued by
- NWS Las Vegas, NV
- Area
- Whole counties
Counties Mohave County, AZ, Clark County, NV
The nearest sounding before it
Mercury/Desert R, NV (KDRA), launched 12:00Z, 8.0 hours before the alert went out and 162 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
- 24 J/kg
- Mixed-layer CIN
- -182 J/kg
- Mixed-layer LCL
- 2396 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 41 m²/s²
- 0-3 km storm-relative helicity
- 155 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 302003 FFWLAS AZC015-NVC003-302100- BULLETIN - EBS ACTIVATION REQUESTED SEVERE THUNDERSTORM AND FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 100 PM PDT SUN AUG 30 1992 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A SEVERE THUNDERSTORM AND FLASH FLOOD WARNING EFFECTIVE UNTIL 200 PM PDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...S... IN NORTHWEST ARIZONA ...MOHAVE COUNTY IN SOUTH NEVADA ...EASTERN CLARK COUNTY THE NATIONAL PARK SERVICE REPORTS 1/2 TO 1 INCH HAIL AT BOULDER BEACH AND LAS VEGAS WASH WITH STRONG GUSTY WINDS. A WEATHER SPOTTER IN HEN- DERSON REPORTED WINDS IN EXCESS OF 60 MPH. HENDERSON AND THE LAKE MEAD RECREATION AREA ARE INCLUDED IN THE WARNING AREA...LAS VEGAS IS NOT INCLUDED. 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. DJR/2003Z
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 30, 10:30 AM MST, 2 hours 30 minutes before
NVZ008-009-302200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 1030 AM PDT SUN AUG 30 1992 ...SHOWERS AND THUNDERSTORMS OVER SOUTHERN NEVADA... THE LAS VEGAS RADAR AND LIGHTNING DETECTION SENSORS SHOWED SHOWERS AND THUNDERSTORMS OVER CLARK AND EASTERN LINCOLN COUNTIES IN SOUTHERN NEVADA AND NORTHWEST MOHAVE COUNTY IN ARIZONA LATE THIS MORNING. THE THUNDER- STORMS WERE MOVING TO THE NORTH OR NORTHEAST AT ABOUT 15 MPH. SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO CONTINUE THROUGH THE DAY. IN ADDITION TO DEADLY LIGHTNING...SOME OF THESE THUNDERSTORMS MAY PRODUCE BRIEF HEAVY RAIN...SMALL HAIL AND STRONG GUSTY WINDS. BE PEPARED TO SEEK SHELTER IF A THUNDERSTORM APPROACHES YOUR AREA. STAY AWAY FROM FLOOD-PRONE AREAS AND WASHES. REMEMBER...NEVER TRY TO CROSS A FLOODED ROADWAY IN YOUR CAR OR ON FOOT. LISTEN TO COMMERCIAL RADIO...TELEVISION OR NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION. DJR/1730Z
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 30, 12:33 PM MST | Flash Flood Warning | VEF | Clark | 57 min |
| Aug 30, 1:00 PM MST | Severe Thunderstorm Warning | VEF | Clark | 60 min |
Nearby
Flash Flood Warnings in Arizona, 1992Flash Flood Warnings in Nevada, 1992Every flash flood warning in 1992
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.