Alert archive / Nevada / Flash Flood Watches in 2008

Flash Flood Watch 3, NWS Las Vegas, NV

July 17, 2008Clark County, Lincoln County, Nye County, Nevada; Inyo County, San Bernardino County, California; Mohave County, Arizona

NWS Las Vegas, NV issued this flash flood watch at Jul 17, 2008, 10:15 AM PDT for Clark County, Lincoln County, Nye County, Nevada; Inyo County, San Bernardino County, California; Mohave County, Arizona. It took effect at Jul 17, 2008, 12:00 PM PDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Jul 17, 2008, 10:15 AM PDT (17:15 UTC)
In effect from
Jul 17, 2008, 12:00 PM PDT
Expired
Jul 17, 2008, 9:11 PM PDT
In force
9 hr
Issued by
NWS Las Vegas, NV
Flood severity
None

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

The radar

The Las Vegas radar (KESX), 110 km from the middle of the area, began a volume at 17:15 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 flash flood watch 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 flash flood watch went out at Jul 17, 3:00 AM PDT, 7 hours 15 minutes earlier.

Area forecast discussion, Jul 17, 3:00 AM PDT, 7 hours 15 minutes before
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Hazardous weather outlook, Jul 17, 5:46 AM PDT, 4 hours 29 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAS VEGAS NV
546 AM PDT THU JUL 17 2008

AZZ001>003-036-CAZ519>527-NVZ014>022-180400-
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-
546 AM PDT THU JUL 17 2008 /546 AM MST THU JUL 17 2008/

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

.DAY ONE...TODAY AND TONIGHT

A MOIST AND UNSTABLE AIR MASS WILL REMAIN OVER THE AREA TODAY FOR
SCATTERED...MAINLY AFTERNOON AND EVENING THUNDERSTORMS WITH LOCAL
GUSTY WINDS. POSSIBLE BRIEF HEAVY RAIN MAY PRODUCE ISOLATED FLASH
FLOODING OR URBAN FLOODING. THE BEST CHANCE OF THUNDERSTORMS WILL
BE OVER NORTHERN MOHAVE COUNTY...CLARK AND LINCOLN COUNTIES AND
SOUTHEAST INYO COUNTY. HOWEVER ISOLATED ACTIVITY POSSIBLE ACROSS
ALL AREAS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

DRIER AIR WILL MOVE OVER THE AREA ON FRIDAY LIMITING THUNDERSTORMS
TO MAINLY NORTHWEST ARIZONA AND EASTERN CLARK/LINCOLN COUNTIES.
GENERALLY DRY CONDITIONS THEN EXPECTED INTO THE WEEKEND AND THE
FIRST OF NEXT WEEK WITH THE EXCEPTION OF ISOLATED THUNDERSTORMS
OVER MOHAVE COUNTY. MOISTURE MAY RETURN NEXT WEEK TO THE EASTERN
PORTION OF THE REGION AS MOISTURE MOVES WEST ACROSS ARIZONA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED...HOWEVER SPOTTERS ARE ALWAYS
ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER AS SOON AS IT IS SAFE
TO DO SO.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 3:22 PM PDTAreal Flood AdvisoryVEFClark, Nye49 min
Jul 16, 6:00 PM PDTFlash Flood WarningVEFSan Bernardino2 hr
Jul 16, 6:21 PM PDTFlash Flood WarningVEFSan Bernardino114 min
Jul 17, 3:06 PM PDTAreal Flood AdvisoryVEFInyo3 hr
Jul 17, 4:43 PM PDTAreal Flood AdvisoryVEFInyo, San Bernardino2 hr

Nearby

Flash Flood Watches in Nevada, 2008Flash Flood Watches in California, 2008Flash Flood Watches in Arizona, 2008Every flash flood watch in 2008

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.