Alert archive / Arizona / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 11, NWS Las Vegas, NV
NWS Las Vegas, NV issued this severe thunderstorm warning at Oct 19, 1990, 3:31 PM MST for Mohave County, Arizona; Clark County, Nevada. It was in force for 59 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Oct 19, 1990, 3:31 PM MST (22:31 UTC)
- Expired
- Oct 19, 1990, 4:30 PM MST
- In force
- 59 min
- Issued by
- NWS Las Vegas, NV
- Area
- Whole counties
Counties Mohave County, AZ, Clark County, NV
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 19, 4:00 PM MST | Thunderstorm Wind 0 | Clark, NV |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Mercury/Desert R, NV (KDRA), launched 12:00Z, 10.5 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2277 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 11 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 192234 SVRLAS AZC015-NVC003-192330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LAS VEGAS NV 331 PM PDT FRI OCT 19 1990 THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 430 PM PDT FOR PEOPLE IN THE FOLLOWING LOCATIONS...S... IN NORTHWEST ARIZONA ...NORTHWESTERN MOHAVE COUNTY IN SOUTH NEVADA ...SOUTHERN CLARK COUNTY STRONG GUSTY WINDS ESTIMATED AT 75 TO 100 MPH HAVE BEEN REPORTED BY THE PARK RANGER AT KATHERNINES LANDING IN EXTREME SOUTHERN NEVADA. ALSO WIND GUSTS TO ABOUT 58 MPH HAVE BEEN REPORTED BY THE FIRE STATION IN LAUGHLIN, NEVADA...ALSO IN EXTREME SOUTHERN NEVADA. THESE WINDS ARE BEING CAUSED BY A COLD FRONT MOVING THROUGH THE AREA THAT IS ALSO WIDESPREAD THUNDERSTORM AND SHOWER ACTIVITY. 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. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR T.V. FOR FURTHER UPDATES OR FORECASTS ON THIS WEATHER SITUATION. EHB/2234Z
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, Oct 19, 1:40 PM MST, 1 hour 51 minutes before
NVZ008-200000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 140 PM PDT FRI OCT 19 1990 ...GUSTY WINDS AND BLOWING DUST OVER SOUTHERN NEVADA... A COLD FRONT IS MOVING THROUGH SOUTHERN NEVADA THIS AFTERNOON AND IS CAUSING GUSTY WINDS AND BLOWING DUST THROUGH SOUTHERN NEVADA FOR THE REST OF THIS AFTERNOON. THE FRONT SHOULD BE THROUGH THE AREA BY EARLY EVENING AND CLEARING AND DECREASING WINDS WILL OCCUR AT THAT TIME. PERSONS ENGAGED IN OUTDOOR ACTIVITIES AND MOTORISTS SHOULD BE ALERT FOR REDUCED VISIBILITES AND GUSTY WINDS IN SOUTHERN NEVADA FOR THE REST OF THIS AFTERNOON. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TV FOR FURTHER STATMENTS CONCERNING THIS WEATHER SITUATION. EHB/2040Z
Special weather statement, Oct 19, 2:24 PM MST, 1 hour 7 minutes before
NVZ008-200000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LAS VEGAS NV 225 PM PDT FRI OCT 19 1990 ...GUSTY WINDS AND BLOWING DUST OVER SOUTHERN NEVADA... A COLD FRONT IS MOVING THROUGH SOUTHERN NEVADA THIS AFTERNOON AND IS CAUSING GUSTY WINDS TO 50 MPH AND BLOWING DUST THROUGH SOUTHERN NEVADA FOR THE REST OF THIS AFTERNOON. BRIEF PERIODS OF LIGHT TO MODERATE RAIN SHOWERS ARE ALSO OCCURRING WITH THE FRONTAL PASSAGE. PERSONS ENGAGED IN OUTDOOR ACTIVITIES AND MOTORISTS SHOULD BE ALERT FOR REDUCED VISIBILITES...GUSTY WINDS AND BRIEF PERIODS OF RAIN IN SOUTHERN NEVADA FOR THE REST OF THIS AFTERNOON. STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO OR TV FOR FURTHER STATMENTS 7CONCERNING THIS WEATHER SITUATION. EHB/2125Z
Nearby
Severe Thunderstorm Warnings in Arizona, 1990Severe Thunderstorm Warnings in Nevada, 1990Every severe thunderstorm 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.