Alert archive / Nevada / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 2, NWS Las Vegas, NV
NWS Las Vegas, NV issued this severe thunderstorm warning at Sep 4, 1987, 4:31 PM PDT for Clark County, Nevada. It was in force for 59 min.
The area
The counties it named.
The facts
- Issued
- Sep 4, 1987, 4:31 PM PDT (23:31 UTC)
- Expired
- Sep 4, 1987, 5:30 PM PDT
- In force
- 59 min
- 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 12:00Z, 11.5 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
- 2958 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 87 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 042331
SVRLAS
NVC003-050030-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
431 PM PDT FRI SEP 4 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 530 PM PDT FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTH NEVADA
...SOUTHERN CLARK
WEATHER RADAR IN LAS VEGAS SHOWS SCATTERED HEAVY THUNDERSTORMS
OVER CLARK COUNTY..INCLUDING GREATER LAS VEGAS. A SPOTTER IN
HENDERSON REPORTS BRIEF HEAVY RAIN AND WIND GUSTS TO 58 MPH.
POLICE INDICATE SOME FLOODING AROUND EASTERN CLARK COUNTY...
INCLUDING SUNSET AND BOULDER HIGHWAY IN HENDERSON.
THIS WARNING INCLUDES THE GREATER LAS VEGAS METRO AREA AS WELL
AS THE LAKE MEAD AND MOHAVE RECREATION AREA.
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 FLOORz
OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.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, Sep 4, 3:35 PM PDT, 56 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS, NV 335 PM PDT FRI SEP 04 1987 ...THUNDERSTORMS DEVELOPING OVER SOUTHERN NEVADA... AT 315 PM WEATHER RADAR IN LAS VEGAS SHOWED A RAPID INCREASE IN THUNDERSTORMS OVER THE SOUTHERN HALF OF NEVADA. SOME OF THE STORMS WERE MODERATE TO HEAVY IN INTENSITY. MOVEMENT WAS NORTHEAST AT 20 MPH. SCATTERED THUNDERSTORMS ARE LIKELY DURING THE NEXT FEW HOURS OVER MOST OF SOUTHERN NEVADA INCLUDING THE LAS VEGAS AREA. DANGEROUS LIGHTNING...GUSTY WINDS TO 40 MPH AND BRIEF HEAVY RAIN IS POSSIBLE THIS EVENING. BOATERS ON LAKE MEAD ARE REMINDED A LAKE WIND ADVISORY HAS BEEN PUT INTO EFFECT FOR THIS EVENING DUE TO GUSTY WINDS AROUND THUNDERSTORM6S. SKIES SHOULD CLEAR LATER TONIGHT. STAY TUNED TO THIS STATION FOR LATER STATEMENTS. SDB/2235Z
Nearby
Severe Thunderstorm Warnings in Nevada, 1987Every severe thunderstorm warning in 1987
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.