Alert archive / Nevada / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 2, NWS Las Vegas, NV
NWS Las Vegas, NV issued this severe thunderstorm 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
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, 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 | Flash Flood Warning | VEF | Clark | 3 hr |
Nearby
Severe 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; the sounding from the Mesonet's radiosonde archive.