Alert archive / Nevada / Excessive Heat Warnings in 2007

Excessive Heat Warning 3, NWS Las Vegas, NV

September 1, 2007Clark County, Nye County, Nevada; Inyo County, San Bernardino County, California; Mohave County, Arizona

NWS Las Vegas, NV issued this excessive heat warning at Sep 1, 2007, 3:27 AM PDT for Clark County, Nye County, Nevada; Inyo County, San Bernardino County, California; Mohave County, Arizona. It took effect at Sep 1, 2007, 1:00 PM PDT. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 1, 2007, 3:27 AM PDT (10:27 UTC)
In effect from
Sep 1, 2007, 1:00 PM PDT
Expired
Sep 1, 2007, 7:00 PM PDT
In force
6 hr
Issued by
NWS Las Vegas, NV

Counties Mohave County, AZ, Inyo County, CA, San Bernardino County, CA, Clark County, NV, Nye County, NV

The radar

The Las Vegas radar (KESX), 100 km from the middle of the area, began a volume at 10:31 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What forecasters said that day

The local office's own words before this excessive heat warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Las Vegas, NV wrote its last area forecast discussion before this excessive heat warning went out at Sep 1, 3:15 AM PDT, 12 minutes earlier.

Area forecast discussion, Sep 1, 3:15 AM PDT, 12 minutes before
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Hazardous weather outlook, Aug 31, 3:49 AM PDT, 23 hours 38 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAS VEGAS NV
349 AM PDT FRI AUG 31 2007

AZZ001>003-036-CAZ519>527-NVZ014>022-010600-
NORTHWEST PLATEAU-LOWER COLORADO RIVER VALLEY-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-EASTERN SIERRA SLOPES-
OWENS VALLEY-WHITE MOUNTAINS OF INYO COUNTY-
DEATH VALLEY NATIONAL PARK-WESTERN MOJAVE DESERT-
EASTERN MOJAVE DESERT-MORONGO BASIN-CADIZ BASIN-
SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY-
ESMERALDA AND CENTRAL NYE COUNTY-LINCOLN COUNTY-
NORTHEAST CLARK COUNTY-WESTERN CLARK AND SOUTHERN NYE COUNTY-
SHEEP RANGE-SPRING MOUNTAINS-LAS VEGAS VALLEY-
SOUTHERN CLARK COUNTY-
349 AM PDT FRI AUG 31 2007 /349 AM MST FRI AUG 31 2007/

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST
ARIZONA...CALIFORNIA AND SOUTHERN NEVADA.

.DAY ONE...TODAY AND TONIGHT

UPPER LEVEL HIGH PRESSURE WILL BUILD OVERHEAD FROM THE EAST WHICH
WILL LIMIT THUNDERSTORM CHANCES TO MAINLY THE HIGHER TERRAIN IN
THE AFTERNOON AND EVENING.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

STRONG HIGH PRESSURE WILL REMAIN OVER THE AREA THROUGH MONDAY
BRINGING TEMPERATURES FIVE TO TEN DEGREES ABOVE NORMAL. HIGH
TEMPERATURES WILL BE VERY CLOSE TO EXCESSIVE HEAT WARNING CRITERIA
OVER THE HOLIDAY WEEKEND...AND HUMID CONDITIONS WILL CONTINUE.
THOSE PLANNING OUTDOOR ACTIVITIES DURING THE HOLIDAY WEEKEND
SHOULD TAKE PRECAUTIONS AGAINST THE HEAT AND HUMIDITY. THE HIGH
PRESSURE WILL ALSO SLOWLY MAKE THE AIR MASS LESS UNSTABLE.
ISOLATED THUNDERSTORMS ARE STILL POSSIBLE OVER THE HIGHER TERRAIN
THROUGH SUNDAY...BUT SHOULD BE LIMITED TO MOHAVE COUNTY BEGINNING
ON LABOR DAY.

A LOW PRESSURE SYSTEM WILL MOVE ACROSS THE PACIFIC NORTHWEST
TUESDAY AND WEDNESDAY WHICH WILL LIKELY BRING SOMEWHAT COOLER
TEMPERATURES TO THE AREA. HIGH TEMPERATURES SHOULD BE AROUND
NORMAL BY THURSDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME. HOWEVER
SPOTTERS ARE ENCOURAGED TO REPORT ANY HAZARDOUS WEATHER THAT MAY
BE ENCOUNTERED TODAY AND THIS EVENING.

The office that day

Everything else NWS Las Vegas, NV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 1, 2:11 PM PDTFlash Flood WarningVEFSan Bernardino3 hr

Nearby

Excessive Heat Warnings in Nevada, 2007Excessive Heat Warnings in California, 2007Excessive Heat Warnings in Arizona, 2007Every excessive heat warning in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.