Alert archive / Nevada / Flash Flood Warnings in 1993
Flash Flood Warning 4, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 28, 1993, 6:30 PM PDT for Clark County, Nye County, Nevada. It was in force for 2 hr.
The area
The counties it named.
The facts
- Issued
- Aug 28, 1993, 6:30 PM PDT (01:30 UTC)
- Expired
- Aug 28, 1993, 8:30 PM PDT
- In force
- 2 hr
- Issued by
- NWS Las Vegas, NV
- Area
- Whole counties
Counties Clark County, NV, Nye County, NV
The nearest sounding before it
Mercury/Desert R, NV (KDRA), launched 00:00Z, 1.5 hours before the alert went out and 61 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
- 40 J/kg
- Mixed-layer CIN
- -73 J/kg
- Mixed-layer LCL
- 3411 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- -3 m²/s²
- 0-3 km storm-relative helicity
- 31 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 290131 FFWLAS NVC003-023-290330- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 630 PM PDT SAT AUG 28 1993 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 830 PM PDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...S... IN SOUTH NEVADA ...NORTHWESTERN CLARK COUNTY IN SOUTH CENTRAL NEVADA ...SOUTHEASTERN NYE COUNTY NEVADA DIVISION OF FORESTRY PERSONNEL REPORTED MODERATE TO HEAVY RAIN FALLING OVER LOWER LEE AND KYLE CANYONS...AND ALSO LUCKY STRIKE CANYON. THE SHOWERS HAVE BEEN IN PROGRESS FOR THE PAST HOUR. IN PAHRUMP...A WEATHER SPOTTER ESTIMATED ONE HALF INCH OF RAIN IN 15 MINUTES...WITH THE SHOWERS STILL GOING ON. STANDING AND POOLING WATER WAS OBSERVED. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IFh WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. FUIS
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 28, 3:29 PM PDT, 3 hours 1 minute before
NVZ009-290300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 325 PM PDT SAT AUG 28 1993 ...ISOLATED THUNDERSTORMS ACROSS SOUTHERN NEVADA... NATIONAL WEATHER SERVICE RADAR AND LIGHTNING DETECTION SENSORS INDICATED ISOLATED THUNDERSTORMS ACROSS CLARK...LINCOLN AND SOUTHERN NYE COUNTIES IN SOUTHERN NEVADA. OTHER THUNDERSTORMS WERE NOTED IN EASTERN SAN BERNARDINO COUNTY IN SOUTHERN CALIFORNIA. LITTLE MOVEMENT WAS NOTED. PRESENTLY THESE THUNDERSTORMS ARE CONFINED TO MOUNTAIN AREAS AND SHOULD DISAPATE RAPIDLY AFTER SUNSET. SOME OF THESE THUNDERSTORMS MAY CAUSE BRIEF HEAVY RAIN...CLOUD TO GROUND LIGHTNING AND STRONG GUSTY WINDS. PERSONS OUT AND ABOUT IN SOUTHERN NEVADA THIS AFTERNOON AND EVENING SHOULD KEEP A WEATHER EYE TO THE SKY AND TAKE PRECAUTIONS SHOULD THUNDERSTORMS MOVE INTO YOUR AREA. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL TV AND RADIO FOR LATER STATEMENTS AND FORECASTS. CHS/2229Z
Special weather statement, Aug 28, 5:22 PM PDT, 1 hour 8 minutes before
NVZ008-009-290500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 515 PM PDT SAT AUG 28 1993 ...SCATTERED THUNDERSTORMS CONTINUE ACROSS SOUTHERN NEVADA... THUNDERSTORMS CONTINUE TO DEVELOP ACROSS SOUTHERN NEVADA THIS AFTERNOON IN A MOIST UNSTABLE AIR MASS. AT 5 PM...MOST OF THE THUNDERSTORMS WERE IN SOUTHEAST LINCOLN COUNTY... NORTHWEST CLARK COUNTY...AND OVER EXTREME SOUTHERN NYE COUNTY. IN SOUTHEAST LINCOLN COUNTY...LAS VEGAS RADAR AND LIGHTNING DETECTION SENSORS SHOWED A VERY ACTIVE THUNDERSTORM NEAR OR ALONG U.S. HIGHWAY 93 ABOUT 20 MILES SOUTH OF ALAMO. THE FREQUENCY OF LIGHTNING SUGGESTS THIS STORM MAY BE DUMPING HEAVY RAIN. IF YOU ARE PLANNING TRAVEL IN THIS AREA...KEEP ON THE LOOKOUT FOR POSSIBLE FLOODED OR DEBRIS COVERED ROADS AS THE THUNDERSTORMS ARE MOVING VERY SLOWLY IF AT ALL...AND WILL LIKELY PERSIST IN THIS GENERAL AREA FOR THE NEXT FEW HOURS. IN NORTHWEST CLARK COUNTY ALONG U.S. HIGHWAY 95...A SIMILAR SITUATION WITH A CLUSTER OF SLOW MOVING THUNDERSTORMS. LAS VEGAS RADAR WAS DETECTING MODERATE RAINSHOWERS IN THIS AREA...WITH LOCALIZED FLOODING A POSSIBLE RESULT. IN SOUTHERN NYE COUNTY...ISOLATED THUNDERSTORMS WERE OCCURRING...SOME WITH POSSIBLE HEAVY RAIN. AFFECTED ROADWAYS WOULD BE U.S. HIGHWAY 95 AND STATE ROUTE 160 EITHER SIDE OF PAHRUMP. THE THUNDERSTORMS WILL BEGIN TO DIMINISH SOMEWHAT AFTER SUNSET THIS EVENING...BUT ISOLATED SHOWERS AND THUNDERSTORMS WILL LIKELY CONTINUE UNTIL AROUND MIDNIGHT. REMEMBER TO KEEP AN EYE ON THE SKY FOR THE APPROACH OF THUNDERSTORMS... AND AVOID LOW LYING AREAS AND OTHER FLOOD PRONE AREAS. LISTEN TO NOAA WEATHER RADIO...OR YOUR FAVORITE NEWS SOURCE FOR THE LATEST WEATHER STATEMENTS AND FORECASTS. FUIS
The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 29, 2:48 PM PDT | Flash Flood Warning | VEF | Clark | 3 hr |
Nearby
Flash Flood Warnings in Nevada, 1993Every flash flood warning in 1993
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.