Alert archive / Nevada / Flash Flood Watches in 2012

Flash Flood Watch 1, NWS Las Vegas, NV

July 12, 2012Mohave County, Arizona; Clark County, Lincoln County, Nye County, Nevada; Inyo County, San Bernardino County, California

NWS Las Vegas, NV issued this flash flood watch at Jul 12, 2012, 10:56 AM MST for Mohave County, Arizona; Clark County, Lincoln County, Nye County, Nevada; Inyo County, San Bernardino County, California. It took effect at Jul 13, 2012, 5:00 AM MST. It was in force for 43 hr.

The area

The counties it named.

The facts

Issued
Jul 12, 2012, 10:56 AM MST (17:56 UTC)
In effect from
Jul 13, 2012, 5:00 AM MST
Expired
Jul 14, 2012, 11:57 PM MST
In force
43 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 17:56 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.

The nearest sounding before it

Las Vegas, NV (KVEF), launched 12:00Z, 5.9 hours before the alert went out and 15 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.

Skew-T log-pSkew-T log-p diagram, Las Vegas, NV at 12:00Z on 2012-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Las Vegas, NV at 12:00Z on 2012-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3775 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
31 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

470 
WGUS65 KVEF 121756
FFAVEF

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE LAS VEGAS NV
1056 AM PDT THU JUL 12 2012

...HEAVY RAINFALL POSSIBLE FRIDAY ACROSS THE MOJAVE DESERT AND
PORTIONS OF THE SOUTHERN GREAT BASIN...

.A SIGNIFICANT INFLUX OF MOISTURE ASSOCIATED WITH THE MONSOON
COMBINED WITH A DISTURBANCE IN THE ATMOSPHERE WILL RESULT IN AN
INCREASED POTENTIAL FOR THUNDERSTORMS TO UNLEASH HEAVY RAINFALL
ACROSS THE MOJAVE DESERT AND PARTS OF THE SOUTHERN GREAT BASIN ON
FRIDAY ESPECIALLY FROM THE LATE MORNING HOURS INTO THE EVENING
HOURS. RAINFALL TOTALS GREATER THAN A HALF AN INCH...WITH LOCAL
AMOUNTS OVER AN INCH IN UNDER A 2 HOUR PERIOD COULD RESULT IN
FLASH FLOODING.

AZZ001>003-036-CAZ522>527-NVZ015>022-130200-
/O.NEW.KVEF.FF.A.0001.120713T1200Z-120714T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTHWEST PLATEAU-LAKE HAVASU AND FORT MOHAVE-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-DEATH VALLEY NATIONAL PARK-
WESTERN MOJAVE DESERT-EASTERN MOJAVE DESERT-MORONGO BASIN-
CADIZ BASIN-SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY-
LINCOLN COUNTY-NORTHEAST CLARK COUNTY-
WESTERN CLARK AND SOUTHERN NYE COUNTY-SHEEP RANGE-
SPRING MOUNTAINS-RED ROCK CANYON-LAS VEGAS VALLEY-
SOUTHERN CLARK COUNTY-
1056 AM PDT THU JUL 12 2012 /1056 AM MST THU JUL 12 2012/

...FLASH FLOOD WATCH IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
EVENING...

THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A

* FLASH FLOOD WATCH FOR PORTIONS OF NORTHWEST ARIZONA... 
  CALIFORNIA AND NEVADA...INCLUDING THE FOLLOWING AREAS...IN 
  NORTHWEST ARIZONA...LAKE HAVASU AND FORT MOHAVE...LAKE MEAD 
  NATIONAL RECREATION AREA...NORTHWEST DESERTS AND NORTHWEST 
  PLATEAU. IN CALIFORNIA...CADIZ BASIN...DEATH VALLEY NATIONAL 
  PARK...EASTERN MOJAVE DESERT...MORONGO BASIN...SAN BERNARDINO 
  COUNTY-UPPER COLORADO RIVER VALLEY AND WESTERN MOJAVE DESERT. 
  IN NEVADA...LAKE MEAD NATIONAL RECREATION AREA...LAS VEGAS 
  VALLEY...LINCOLN COUNTY...NORTHEAST CLARK COUNTY...SHEEP 
  RANGE...SOUTHERN CLARK COUNTY...SPRING MOUNTAINS-RED ROCK 
  CANYON AND WESTERN CLARK AND SOUTHERN NYE COUNTY. 

* FROM LATE TONIGHT THROUGH FRIDAY EVENING

* A SIGNIFICANT INFLUX OF MOISTURE MOVING INTO THE AREA WILL
  RESULT IN THE POTENTIAL FOR THUNDERSTORMS TO UNLEASH HEAVY
  RAINFALL WITH TOTALS EASILY EXCEEDING AN INCH IN LESS THAN 2
  HOURS IN THE HEAVIEST STORMS.

* TRAVELERS SHOULD BE ALERT FOR THE POTENTIAL FOR WATER TO COVER
  LOW SPOTS INCLUDING ANY ROADS THAT RUN THROUGH WASHES. ROCKS AND
  MUD MAY WASH ONTO ROADS DUE TO RUNOFF. DIRT AND GRAVEL SECONDARY
  ROADS MAY WASH OUT OR BE IMPASSIBLE. STORM DRAINS AND FLOOD
  CONTROL CHANNELS COULD SEE RAPIDLY FLOWING WATER IN THEM ALONG
  WITH THE POTENTIAL FOR DEBRIS TO COLLECT IN THEM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION
AND PERSONS IN AND NEAR THE WATCH AREA SHOULD BE ALERT TO THE
POTENTIAL FOR HEAVY RAINFALL.

&&

$$

STACHELSKI
10 follow-up statements
579 
WGUS65 KVEF 130143
FFAVEF

FLOOD WATCH
NATIONAL WEATHER SERVICE LAS VEGAS NV
643 PM PDT THU JUL 12 2012

...HEAVY RAINFALL POSSIBLE FRIDAY ACROSS THE MOJAVE DESERT AND
PORTIONS OF THE SOUTHERN GREAT BASIN...

.A SIGNIFICANT INFLUX OF MOISTURE ASSOCIATED WITH THE MONSOON
COMBINED WITH A DISTURBANCE IN THE ATMOSPHERE WILL RESULT IN AN
INCREASED POTENTIAL FOR THUNDERSTORMS TO UNLEASH HEAVY RAINFALL
ACROSS THE MOJAVE DESERT AND PARTS OF THE SOUTHERN GREAT BASIN ON
FRIDAY ESPECIALLY FROM THE LATE MORNING HOURS INTO THE EVENING
HOURS. RAINFALL TOTALS GREATER THAN A HALF AN INCH...WITH LOCAL
AMOUNTS OVER AN INCH IN UNDER A 2 HOUR PERIOD COULD RESULT IN
FLASH FLOODING.

AZZ001>003-036-CAZ522>527-NVZ015>022-131045-
/O.CON.KVEF.FF.A.0001.120713T1200Z-120714T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTHWEST PLATEAU-LAKE HAVASU AND FORT MOHAVE-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-DEATH VALLEY NATIONAL PARK-
WESTERN MOJAVE DESERT-EASTERN MOJAVE DESERT-MORONGO BASIN-
CADIZ BASIN-SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY-
LINCOLN COUNTY-NORTHEAST CLARK COUNTY-
WESTERN CLARK AND SOUTHERN NYE COUNTY-SHEEP RANGE-
SPRING MOUNTAINS-RED ROCK CANYON-LAS VEGAS VALLEY-
SOUTHERN CLARK COUNTY-
643 PM PDT THU JUL 12 2012 /643 PM MST THU JUL 12 2012/

...FLASH FLOOD WATCH REMAINS IN EFFECT FROM 5 AM PDT /5 AM MST/
FRIDAY THROUGH FRIDAY EVENING...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHWEST ARIZONA...CALIFORNIA AND NEVADA... 
  INCLUDING THE FOLLOWING AREAS...IN NORTHWEST ARIZONA...LAKE 
  HAVASU AND FORT MOHAVE...LAKE MEAD NATIONAL RECREATION AREA... 
  NORTHWEST DESERTS AND NORTHWEST PLATEAU. IN CALIFORNIA...CADIZ 
  BASIN...DEATH VALLEY NATIONAL PARK...EASTERN MOJAVE DESERT... 
  MORONGO BASIN...SAN BERNARDINO COUNTY-UPPER COLORADO RIVER 
  VALLEY AND WESTERN MOJAVE DESERT. IN NEVADA...LAKE MEAD 
  NATIONAL RECREATION AREA...LAS VEGAS VALLEY...LINCOLN COUNTY...
   NORTHEAST CLARK COUNTY...SHEEP RANGE...SOUTHERN CLARK 
  COUNTY... SPRING MOUNTAINS-RED ROCK CANYON AND WESTERN CLARK 
  AND SOUTHERN NYE COUNTY. 

* FROM 5 AM PDT /5 AM MST/ FRIDAY THROUGH FRIDAY EVENING

* A SIGNIFICANT INFLUX OF MOISTURE MOVING INTO THE AREA WILL 
  RESULT IN THE POTENTIAL FOR THUNDERSTORMS TO UNLEASH HEAVY 
  RAINFALL WITH TOTALS EASILY EXCEEDING AN INCH IN LESS THAN 2 
  HOURS IN THE HEAVIEST STORMS. 

* TRAVELERS SHOULD BE ALERT FOR THE POTENTIAL FOR WATER TO COVER 
  LOW SPOTS INCLUDING ANY ROADS THAT RUN THROUGH WASHES. ROCKS 
  AND MUD MAY WASH ONTO ROADS DUE TO RUNOFF. DIRT AND GRAVEL 
  SECONDARY ROADS MAY WASH OUT OR BE IMPASSIBLE. STORM DRAINS 
  AND FLOOD CONTROL CHANNELS COULD SEE RAPIDLY FLOWING WATER IN 
  THEM ALONG WITH THE POTENTIAL FOR DEBRIS TO COLLECT IN THEM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION
AND PERSONS IN AND NEAR THE WATCH AREA SHOULD BE ALERT TO THE
POTENTIAL FOR HEAVY RAINFALL.

&&

$$

STACHELSKI
170 
WGUS65 KVEF 131043
FFAVEF

FLOOD WATCH
NATIONAL WEATHER SERVICE LAS VEGAS NV
343 AM PDT FRI JUL 13 2012

...HEAVY RAINFALL POSSIBLE TODAY ACROSS THE MOJAVE DESERT AND
PORTIONS OF THE SOUTHERN GREAT BASIN...

.A SIGNIFICANT AMOUNT OF MOISTURE ASSOCIATED WITH THE MONSOON
COMBINED WITH A DISTURBANCE IN THE ATMOSPHERE WILL RESULT IN AN
INCREASED POTENTIAL FOR THUNDERSTORMS TO UNLEASH HEAVY RAINFALL
ACROSS THE MOJAVE DESERT AND PARTS OF THE SOUTHERN GREAT BASIN TODAY
ESPECIALLY FROM THE LATE MORNING HOURS INTO THE EVENING HOURS.
RAINFALL TOTALS GREATER THAN A HALF AN INCH...WITH LOCAL AMOUNTS
OF ONE TO TWO INCHES IN UNDER AN HOUR COULD RESULT IN FLASH
FLOODING.

AZZ001>003-036-CAZ522>527-NVZ015>022-131900-
/O.CON.KVEF.FF.A.0001.120713T1200Z-120714T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTHWEST PLATEAU-LAKE HAVASU AND FORT MOHAVE-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-DEATH VALLEY NATIONAL PARK-
WESTERN MOJAVE DESERT-EASTERN MOJAVE DESERT-MORONGO BASIN-
CADIZ BASIN-SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY-
LINCOLN COUNTY-NORTHEAST CLARK COUNTY-
WESTERN CLARK AND SOUTHERN NYE COUNTY-SHEEP RANGE-
SPRING MOUNTAINS-RED ROCK CANYON-LAS VEGAS VALLEY-
SOUTHERN CLARK COUNTY-
343 AM PDT FRI JUL 13 2012 /343 AM MST FRI JUL 13 2012/

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHWEST ARIZONA...CALIFORNIA AND NEVADA... 
  INCLUDING THE FOLLOWING AREAS...IN NORTHWEST ARIZONA...LAKE 
  HAVASU AND FORT MOHAVE...LAKE MEAD NATIONAL RECREATION AREA... 
  NORTHWEST DESERTS AND NORTHWEST PLATEAU. IN CALIFORNIA...CADIZ 
  BASIN...DEATH VALLEY NATIONAL PARK...EASTERN MOJAVE DESERT... 
  MORONGO BASIN...SAN BERNARDINO COUNTY-UPPER COLORADO RIVER 
  VALLEY AND WESTERN MOJAVE DESERT. IN NEVADA...LAKE MEAD 
  NATIONAL RECREATION AREA...LAS VEGAS VALLEY...LINCOLN COUNTY...
   NORTHEAST CLARK COUNTY...SHEEP RANGE...SOUTHERN CLARK 
  COUNTY... SPRING MOUNTAINS-RED ROCK CANYON AND WESTERN CLARK 
  AND SOUTHERN NYE COUNTY. 

* THROUGH THIS EVENING

* A SIGNIFICANT AMOUNT OF MOISTURE IN THE AREA WILL RESULT IN THE
  POTENTIAL FOR THUNDERSTORMS TO UNLEASH HEAVY RAINFALL WITH ONE
  TO TWO INCHES POSSIBLE FROM THE STRONGEST STORMS.

* TRAVELERS SHOULD BE ALERT FOR THE POTENTIAL FOR WATER TO COVER 
  LOW SPOTS INCLUDING ANY ROADS THAT RUN THROUGH WASHES. ROCKS 
  AND MUD MAY WASH ONTO ROADS DUE TO RUNOFF. DIRT AND GRAVEL 
  SECONDARY ROADS MAY WASH OUT OR BE IMPASSIBLE. STORM DRAINS 
  AND FLOOD CONTROL CHANNELS COULD SEE RAPIDLY FLOWING WATER IN 
  THEM ALONG WITH THE POTENTIAL FOR DEBRIS TO COLLECT IN THEM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION
AND PERSONS IN AND NEAR THE WATCH AREA SHOULD BE ALERT TO THE
POTENTIAL FOR HEAVY RAINFALL.

&&

$$

PIERCE
374 
WGUS65 KVEF 131751
FFAVEF

URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE LAS VEGAS NV
1051 AM PDT FRI JUL 13 2012

...HEAVY RAINFALL POSSIBLE THROUGH SATURDAY EVENING ACROSS THE
MOJAVE DESERT AND PORTIONS OF THE SOUTHERN GREAT BASIN...

.A SIGNIFICANT AMOUNT OF MOISTURE ASSOCIATED WITH THE MONSOON
COMBINED WITH A DISTURBANCE IN THE ATMOSPHERE WILL RESULT IN AN
INCREASED POTENTIAL FOR THUNDERSTORMS TO UNLEASH HEAVY RAINFALL
ACROSS THE MOJAVE DESERT AND PARTS OF THE SOUTHERN GREAT BASIN
THROUGH SATURDAY EVENING ESPECIALLY FROM THE LATE MORNING HOURS
INTO THE EVENING HOURS. RAINFALL TOTALS GREATER THAN A HALF AN
INCH...WITH LOCAL AMOUNTS OF ONE TO TWO INCHES IN UNDER AN HOUR
COULD RESULT IN FLASH FLOODING.

AZZ001>003-036-CAZ522-524-527-NVZ015>022-140200-
/O.EXT.KVEF.FF.A.0001.000000T0000Z-120715T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTHWEST PLATEAU-LAKE HAVASU AND FORT MOHAVE-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-DEATH VALLEY NATIONAL PARK-
EASTERN MOJAVE DESERT-SAN BERNARDINO COUNTY-
UPPER COLORADO RIVER VALLEY-LINCOLN COUNTY-NORTHEAST CLARK COUNTY-
WESTERN CLARK AND SOUTHERN NYE COUNTY-SHEEP RANGE-
SPRING MOUNTAINS-RED ROCK CANYON-LAS VEGAS VALLEY-
SOUTHERN CLARK COUNTY-
1051 AM PDT FRI JUL 13 2012 /1051 AM MST FRI JUL 13 2012/

...FLASH FLOOD WATCH NOW IN EFFECT THROUGH SATURDAY EVENING...

THE FLASH FLOOD WATCH IS NOW IN EFFECT FOR

* PORTIONS OF NORTHWEST ARIZONA...CALIFORNIA AND NEVADA... 
  INCLUDING THE FOLLOWING AREAS...IN NORTHWEST ARIZONA...LAKE 
  HAVASU AND FORT MOHAVE...LAKE MEAD NATIONAL RECREATION AREA... 
  NORTHWEST DESERTS AND NORTHWEST PLATEAU. IN CALIFORNIA...DEATH 
  VALLEY NATIONAL PARK...EASTERN MOJAVE DESERT AND SAN 
  BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY. IN NEVADA... 
  LAKE MEAD NATIONAL RECREATION AREA...LAS VEGAS VALLEY... 
  LINCOLN COUNTY...NORTHEAST CLARK COUNTY...SHEEP RANGE... 
  SOUTHERN CLARK COUNTY...SPRING MOUNTAINS-RED ROCK CANYON AND 
  WESTERN CLARK AND SOUTHERN NYE COUNTY. 

* THROUGH SATURDAY EVENING

* A SIGNIFICANT AMOUNT OF MOISTURE IN THE AREA WILL RESULT IN 
  THE POTENTIAL FOR THUNDERSTORMS TO UNLEASH HEAVY RAINFALL WITH 
  ONE TO TWO INCHES POSSIBLE FROM THE STRONGEST STORMS. 

* TRAVELERS SHOULD BE ALERT FOR THE POTENTIAL FOR WATER TO COVER
  LOW SPOTS INCLUDING ANY ROADS THAT RUN THROUGH WASHES. ROCKS AND
  MUD MAY WASH ONTO ROADS DUE TO RUNOFF. DIRT AND GRAVEL SECONDARY
  ROADS MAY WASH OUT OR BE IMPASSIBLE. STORM DRAINS AND FLOOD
  CONTROL CHANNELS COULD SEE RAPIDLY FLOWING WATER IN THEM ALONG
  WITH THE POTENTIAL FOR DEBRIS TO COLLECT IN THEM. IN
  ADDITION...RUNOFF MAY CAUSE FLOODING WELL AWAY FROM WHERE ANY
  RAIN FALLS ESPECIALLY IN AREAS DOWNSTREAM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION
AND PERSONS IN AND NEAR THE WATCH AREA SHOULD BE ALERT TO THE
POTENTIAL FOR HEAVY RAINFALL.

&&

$$

CAZ523-525-526-140200-
/O.CON.KVEF.FF.A.0001.000000T0000Z-120714T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WESTERN MOJAVE DESERT-MORONGO BASIN-CADIZ BASIN-
1051 AM PDT FRI JUL 13 2012

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING...

THE FLASH FLOOD WATCH CONTINUES FOR

* A PORTION OF CALIFORNIA...INCLUDING THE FOLLOWING AREAS... 
  CADIZ BASIN...MORONGO BASIN AND WESTERN MOJAVE DESERT. 

* THROUGH THIS EVENING

* A SIGNIFICANT AMOUNT OF MOISTURE IN THE AREA WILL RESULT IN 
  THE POTENTIAL FOR THUNDERSTORMS TO UNLEASH HEAVY RAINFALL WITH 
  ONE TO TWO INCHES POSSIBLE FROM THE STRONGEST STORMS. 

* TRAVELERS SHOULD BE ALERT FOR THE POTENTIAL FOR WATER TO COVER 
  LOW SPOTS INCLUDING ANY ROADS THAT RUN THROUGH WASHES. ROCKS 
  AND MUD MAY WASH ONTO ROADS DUE TO RUNOFF. DIRT AND GRAVEL 
  SECONDARY ROADS MAY WASH OUT OR BE IMPASSIBLE. STORM DRAINS 
  AND FLOOD CONTROL CHANNELS COULD SEE RAPIDLY FLOWING WATER IN 
  THEM ALONG WITH THE POTENTIAL FOR DEBRIS TO COLLECT IN THEM. IN
  ADDITION...RUNOFF MAY CAUSE FLOODING WELL AWAY FROM WHERE ANY
  RAIN FALLS ESPECIALLY IN AREAS DOWNSTREAM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION
AND PERSONS IN AND NEAR THE WATCH AREA SHOULD BE ALERT TO THE
POTENTIAL FOR HEAVY RAINFALL.

&&

$$

STACHELSKI
706 
WGUS65 KVEF 132127
FFAVEF

FLOOD WATCH
NATIONAL WEATHER SERVICE LAS VEGAS NV
227 PM PDT FRI JUL 13 2012

...HEAVY RAINFALL POSSIBLE THROUGH SATURDAY EVENING ACROSS THE
MOJAVE DESERT AND PORTIONS OF THE SOUTHERN GREAT BASIN...

.A SIGNIFICANT AMOUNT OF MOISTURE ASSOCIATED WITH THE MONSOON
COMBINED WITH A DISTURBANCE IN THE ATMOSPHERE WILL RESULT IN AN
INCREASED POTENTIAL FOR THUNDERSTORMS TO UNLEASH HEAVY RAINFALL
ACROSS THE MOJAVE DESERT AND PARTS OF THE SOUTHERN GREAT BASIN
THROUGH SATURDAY EVENING ESPECIALLY FROM THE LATE MORNING HOURS
INTO THE EVENING HOURS. RAINFALL TOTALS GREATER THAN A HALF AN
INCH...WITH LOCAL AMOUNTS OF ONE TO TWO INCHES IN UNDER AN HOUR
COULD RESULT IN FLASH FLOODING.

CAZ523-525-526-140700-
/O.CON.KVEF.FF.A.0001.000000T0000Z-120714T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WESTERN MOJAVE DESERT-MORONGO BASIN-CADIZ BASIN-
227 PM PDT FRI JUL 13 2012

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TONIGHT...

THE FLASH FLOOD WATCH CONTINUES FOR

* A PORTION OF CALIFORNIA...INCLUDING THE FOLLOWING AREAS... 
  CADIZ BASIN...MORONGO BASIN AND WESTERN MOJAVE DESERT. 

* UNTIL MIDNIGHT PDT TONIGHT

* A SIGNIFICANT AMOUNT OF MOISTURE IN THE AREA WILL RESULT IN 
  THE POTENTIAL FOR THUNDERSTORMS TO UNLEASH HEAVY RAINFALL WITH 
  ONE TO TWO INCHES POSSIBLE FROM THE STRONGEST STORMS. 

* TRAVELERS SHOULD BE ALERT FOR THE POTENTIAL FOR WATER TO COVER 
  LOW SPOTS INCLUDING ANY ROADS THAT RUN THROUGH WASHES. ROCKS 
  AND MUD MAY WASH ONTO ROADS DUE TO RUNOFF. DIRT AND GRAVEL 
  SECONDARY ROADS MAY WASH OUT OR BE IMPASSIBLE. STORM DRAINS 
  AND FLOOD CONTROL CHANNELS COULD SEE RAPIDLY FLOWING WATER IN 
  THEM ALONG WITH THE POTENTIAL FOR DEBRIS TO COLLECT IN THEM. 
  IN ADDITION...RUNOFF MAY CAUSE FLOODING WELL AWAY FROM WHERE 
  ANY RAIN FALLS ESPECIALLY IN AREAS DOWNSTREAM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION
AND PERSONS IN AND NEAR THE WATCH AREA SHOULD BE ALERT TO THE
POTENTIAL FOR HEAVY RAINFALL.

&&

$$

AZZ001>003-036-CAZ522-524-527-NVZ015>022-140700-
/O.CON.KVEF.FF.A.0001.000000T0000Z-120715T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTHWEST PLATEAU-LAKE HAVASU AND FORT MOHAVE-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-DEATH VALLEY NATIONAL PARK-
EASTERN MOJAVE DESERT-SAN BERNARDINO COUNTY-
UPPER COLORADO RIVER VALLEY-LINCOLN COUNTY-NORTHEAST CLARK COUNTY-
WESTERN CLARK AND SOUTHERN NYE COUNTY-SHEEP RANGE-
SPRING MOUNTAINS-RED ROCK CANYON-LAS VEGAS VALLEY-
SOUTHERN CLARK COUNTY-
227 PM PDT FRI JUL 13 2012 /227 PM MST FRI JUL 13 2012/

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY EVENING...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHWEST ARIZONA...CALIFORNIA AND NEVADA... 
  INCLUDING THE FOLLOWING AREAS...IN NORTHWEST ARIZONA...LAKE 
  HAVASU AND FORT MOHAVE...LAKE MEAD NATIONAL RECREATION AREA... 
  NORTHWEST DESERTS AND NORTHWEST PLATEAU. IN CALIFORNIA...DEATH 
  VALLEY NATIONAL PARK...EASTERN MOJAVE DESERT AND SAN 
  BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY. IN NEVADA... 
  LAKE MEAD NATIONAL RECREATION AREA...LAS VEGAS VALLEY... 
  LINCOLN COUNTY...NORTHEAST CLARK COUNTY...SHEEP RANGE... 
  SOUTHERN CLARK COUNTY...SPRING MOUNTAINS-RED ROCK CANYON AND 
  WESTERN CLARK AND SOUTHERN NYE COUNTY. 

* UNTIL MIDNIGHT SUNDAY

* A SIGNIFICANT AMOUNT OF MOISTURE IN THE AREA WILL RESULT IN 
  THE POTENTIAL FOR THUNDERSTORMS TO UNLEASH HEAVY RAINFALL WITH 
  ONE TO TWO INCHES POSSIBLE FROM THE STRONGEST STORMS. 

* TRAVELERS SHOULD BE ALERT FOR THE POTENTIAL FOR WATER TO COVER 
  LOW SPOTS INCLUDING ANY ROADS THAT RUN THROUGH WASHES. ROCKS 
  AND MUD MAY WASH ONTO ROADS DUE TO RUNOFF. DIRT AND GRAVEL 
  SECONDARY ROADS MAY WASH OUT OR BE IMPASSIBLE. STORM DRAINS 
  AND FLOOD CONTROL CHANNELS COULD SEE RAPIDLY FLOWING WATER IN 
  THEM ALONG WITH THE POTENTIAL FOR DEBRIS TO COLLECT IN THEM. 
  IN ADDITION...RUNOFF MAY CAUSE FLOODING WELL AWAY FROM WHERE 
  ANY RAIN FALLS ESPECIALLY IN AREAS DOWNSTREAM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION
AND PERSONS IN AND NEAR THE WATCH AREA SHOULD BE ALERT TO THE
POTENTIAL FOR HEAVY RAINFALL.

&&

$$

STACHELSKI
630 
WGUS65 KVEF 140234
FFAVEF

FLOOD WATCH
NATIONAL WEATHER SERVICE LAS VEGAS NV
734 PM PDT FRI JUL 13 2012

...HEAVY RAINFALL POSSIBLE THROUGH SATURDAY EVENING ACROSS THE
MOJAVE DESERT AND PORTIONS OF THE SOUTHERN GREAT BASIN...

.A SIGNIFICANT AMOUNT OF MOISTURE ASSOCIATED WITH THE MONSOON
COMBINED WITH A DISTURBANCE IN THE ATMOSPHERE WILL RESULT IN AN
INCREASED POTENTIAL FOR THUNDERSTORMS TO UNLEASH HEAVY RAINFALL
ACROSS THE MOJAVE DESERT AND PARTS OF THE SOUTHERN GREAT BASIN
THROUGH SATURDAY EVENING ESPECIALLY FROM THE LATE MORNING HOURS
INTO THE EVENING HOURS. RAINFALL TOTALS GREATER THAN A HALF AN
INCH...WITH LOCAL AMOUNTS OF ONE TO TWO INCHES IN UNDER AN HOUR
COULD RESULT IN FLASH FLOODING.

CAZ523-140345-
/O.CAN.KVEF.FF.A.0001.000000T0000Z-120714T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WESTERN MOJAVE DESERT-
734 PM PDT FRI JUL 13 2012

...FLASH FLOOD WATCH IS CANCELLED...

THE FLASH FLOOD WATCH FOR NORTHWEST SAN BERNARDINO COUNTY HAS BEEN
CANCELLED. THE CHANCE FOR HEAVY RAIN PRODUCING THUNDERSTORMS OVER
NORTHWEST SAN BERNARDINO COUNTY BEFORE MIDNIGHT HAS SIGNIFICANTLY
DIMINISHED. THEREFORE THE FLASH FLOOD WATCH FOR THIS AREA HAS BEEN
CANCELLED. 

$$

CAZ525-526-140700-
/O.CON.KVEF.FF.A.0001.000000T0000Z-120714T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MORONGO BASIN-CADIZ BASIN-
734 PM PDT FRI JUL 13 2012

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TONIGHT...

THE FLASH FLOOD WATCH CONTINUES FOR

* A PORTION OF CALIFORNIA...INCLUDING THE FOLLOWING AREAS... 
  CADIZ BASIN AND MORONGO BASIN. 

* UNTIL MIDNIGHT PDT TONIGHT

* A SIGNIFICANT AMOUNT OF MOISTURE IN THE AREA WILL RESULT IN 
  THE POTENTIAL FOR THUNDERSTORMS TO UNLEASH HEAVY RAINFALL WITH 
  ONE TO TWO INCHES POSSIBLE FROM THE STRONGEST STORMS. 

* TRAVELERS SHOULD BE ALERT FOR THE POTENTIAL FOR WATER TO COVER 
  LOW SPOTS INCLUDING ANY ROADS THAT RUN THROUGH WASHES. ROCKS 
  AND MUD MAY WASH ONTO ROADS DUE TO RUNOFF. DIRT AND GRAVEL 
  SECONDARY ROADS MAY WASH OUT OR BE IMPASSIBLE. STORM DRAINS 
  AND FLOOD CONTROL CHANNELS COULD SEE RAPIDLY FLOWING WATER IN 
  THEM ALONG WITH THE POTENTIAL FOR DEBRIS TO COLLECT IN THEM. 
  IN ADDITION...RUNOFF MAY CAUSE FLOODING WELL AWAY FROM WHERE 
  ANY RAIN FALLS ESPECIALLY IN AREAS DOWNSTREAM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION
AND PERSONS IN AND NEAR THE WATCH AREA SHOULD BE ALERT TO THE
POTENTIAL FOR HEAVY RAINFALL.

&&

$$

AZZ001>003-036-CAZ522-524-527-NVZ015>022-141045-
/O.CON.KVEF.FF.A.0001.000000T0000Z-120715T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTHWEST PLATEAU-LAKE HAVASU AND FORT MOHAVE-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-DEATH VALLEY NATIONAL PARK-
EASTERN MOJAVE DESERT-SAN BERNARDINO COUNTY-
UPPER COLORADO RIVER VALLEY-LINCOLN COUNTY-NORTHEAST CLARK COUNTY-
WESTERN CLARK AND SOUTHERN NYE COUNTY-SHEEP RANGE-
SPRING MOUNTAINS-RED ROCK CANYON-LAS VEGAS VALLEY-
SOUTHERN CLARK COUNTY-
734 PM PDT FRI JUL 13 2012 /734 PM MST FRI JUL 13 2012/

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH MIDNIGHT SUNDAY...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHWEST ARIZONA...CALIFORNIA AND NEVADA... 
  INCLUDING THE FOLLOWING AREAS...IN NORTHWEST ARIZONA...LAKE 
  HAVASU AND FORT MOHAVE...LAKE MEAD NATIONAL RECREATION AREA... 
  NORTHWEST DESERTS AND NORTHWEST PLATEAU. IN CALIFORNIA...DEATH 
  VALLEY NATIONAL PARK...EASTERN MOJAVE DESERT AND SAN 
  BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY. IN NEVADA... 
  LAKE MEAD NATIONAL RECREATION AREA...LAS VEGAS VALLEY... 
  LINCOLN COUNTY...NORTHEAST CLARK COUNTY...SHEEP RANGE... 
  SOUTHERN CLARK COUNTY...SPRING MOUNTAINS-RED ROCK CANYON AND 
  WESTERN CLARK AND SOUTHERN NYE COUNTY. 

* THROUGH MIDNIGHT SUNDAY.

* A SIGNIFICANT AMOUNT OF MOISTURE IN THE AREA WILL RESULT IN 
  THE POTENTIAL FOR THUNDERSTORMS TO UNLEASH HEAVY RAINFALL WITH 
  ONE TO TWO INCHES POSSIBLE FROM THE STRONGEST STORMS. 

* TRAVELERS SHOULD BE ALERT FOR THE POTENTIAL FOR WATER TO COVER 
  LOW SPOTS INCLUDING ANY ROADS THAT RUN THROUGH WASHES. ROCKS 
  AND MUD MAY WASH ONTO ROADS DUE TO RUNOFF. DIRT AND GRAVEL 
  SECONDARY ROADS MAY WASH OUT OR BE IMPASSIBLE. STORM DRAINS 
  AND FLOOD CONTROL CHANNELS COULD SEE RAPIDLY FLOWING WATER IN 
  THEM ALONG WITH THE POTENTIAL FOR DEBRIS TO COLLECT IN THEM. 
  IN ADDITION...RUNOFF MAY CAUSE FLOODING WELL AWAY FROM WHERE 
  ANY RAIN FALLS ESPECIALLY IN AREAS DOWNSTREAM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION
AND PERSONS IN AND NEAR THE WATCH AREA SHOULD BE ALERT TO THE
POTENTIAL FOR HEAVY RAINFALL.

&&

$$

STACHELSKI
207 
WGUS65 KVEF 140350 CCA
FFAVEF

FLOOD WATCH...CORRECTED
NATIONAL WEATHER SERVICE LAS VEGAS NV
845 PM PDT FRI JUL 13 2012

...HEAVY RAINFALL POSSIBLE THROUGH SATURDAY EVENING ACROSS THE
MOJAVE DESERT AND PORTIONS OF THE SOUTHERN GREAT BASIN...

.A SIGNIFICANT AMOUNT OF MOISTURE ASSOCIATED WITH THE MONSOON
COMBINED WITH A DISTURBANCE IN THE ATMOSPHERE WILL RESULT IN AN
INCREASED POTENTIAL FOR THUNDERSTORMS TO UNLEASH HEAVY RAINFALL
ACROSS THE MOJAVE DESERT AND PARTS OF THE SOUTHERN GREAT BASIN
THROUGH SATURDAY EVENING ESPECIALLY FROM THE LATE MORNING HOURS
INTO THE EVENING HOURS. RAINFALL TOTALS GREATER THAN A HALF AN
INCH...WITH LOCAL AMOUNTS OF ONE TO TWO INCHES IN UNDER AN HOUR
COULD RESULT IN FLASH FLOODING.

CAZ523-140445-
/O.CAN.KVEF.FF.A.0001.000000T0000Z-120714T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
WESTERN MOJAVE DESERT-
845 PM PDT FRI JUL 13 2012

...FLASH FLOOD WATCH IS CANCELLED...

THE FLASH FLOOD WATCH FOR NORTHWEST SAN BERNARDINO COUNTY HAS BEEN
CANCELLED. THE CHANCE FOR HEAVY RAIN PRODUCING THUNDERSTORMS OVER
NORTHWEST SAN BERNARDINO COUNTY BEFORE MIDNIGHT HAS SIGNIFICANTLY
DIMINISHED. THEREFORE THE FLASH FLOOD WATCH FOR THIS AREA HAS BEEN
CANCELLED.

$$

CAZ525-526-140700-
/O.CON.KVEF.FF.A.0001.000000T0000Z-120714T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MORONGO BASIN-CADIZ BASIN-
845 PM PDT FRI JUL 13 2012

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TONIGHT...

THE FLASH FLOOD WATCH CONTINUES FOR

* A PORTION OF CALIFORNIA...INCLUDING THE FOLLOWING AREAS...
  CADIZ BASIN AND MORONGO BASIN.

* UNTIL MIDNIGHT PDT TONIGHT

* A SIGNIFICANT AMOUNT OF MOISTURE IN THE AREA WILL RESULT IN
  THE POTENTIAL FOR THUNDERSTORMS TO UNLEASH HEAVY RAINFALL WITH
  ONE TO TWO INCHES POSSIBLE FROM THE STRONGEST STORMS.

* TRAVELERS SHOULD BE ALERT FOR THE POTENTIAL FOR WATER TO COVER
  LOW SPOTS INCLUDING ANY ROADS THAT RUN THROUGH WASHES. ROCKS
  AND MUD MAY WASH ONTO ROADS DUE TO RUNOFF. DIRT AND GRAVEL
  SECONDARY ROADS MAY WASH OUT OR BE IMPASSIBLE. STORM DRAINS
  AND FLOOD CONTROL CHANNELS COULD SEE RAPIDLY FLOWING WATER IN
  THEM ALONG WITH THE POTENTIAL FOR DEBRIS TO COLLECT IN THEM.
  IN ADDITION...RUNOFF MAY CAUSE FLOODING WELL AWAY FROM WHERE
  ANY RAIN FALLS ESPECIALLY IN AREAS DOWNSTREAM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION
AND PERSONS IN AND NEAR THE WATCH AREA SHOULD BE ALERT TO THE
POTENTIAL FOR HEAVY RAINFALL.

&&

$$

AZZ001>003-036-CAZ522-524-527-NVZ015>022-141200-
/O.COR.KVEF.FF.A.0001.000000T0000Z-120715T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTHWEST PLATEAU-LAKE HAVASU AND FORT MOHAVE-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-DEATH VALLEY NATIONAL PARK-
EASTERN MOJAVE DESERT-SAN BERNARDINO COUNTY-
UPPER COLORADO RIVER VALLEY-LINCOLN COUNTY-NORTHEAST CLARK COUNTY-
WESTERN CLARK AND SOUTHERN NYE COUNTY-SHEEP RANGE-
SPRING MOUNTAINS-RED ROCK CANYON-LAS VEGAS VALLEY-
SOUTHERN CLARK COUNTY-
845 PM PDT FRI JUL 13 2012 /845 PM MST FRI JUL 13 2012/

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY EVENING...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHWEST ARIZONA...CALIFORNIA AND NEVADA...
  INCLUDING THE FOLLOWING AREAS...IN NORTHWEST ARIZONA...LAKE
  HAVASU AND FORT MOHAVE...LAKE MEAD NATIONAL RECREATION AREA...
  NORTHWEST DESERTS AND NORTHWEST PLATEAU. IN CALIFORNIA...DEATH
  VALLEY NATIONAL PARK...EASTERN MOJAVE DESERT AND SAN
  BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY. IN NEVADA...
  LAKE MEAD NATIONAL RECREATION AREA...LAS VEGAS VALLEY...
  LINCOLN COUNTY...NORTHEAST CLARK COUNTY...SHEEP RANGE...
  SOUTHERN CLARK COUNTY...SPRING MOUNTAINS-RED ROCK CANYON AND
  WESTERN CLARK AND SOUTHERN NYE COUNTY.

* THROUGH SATURDAY EVENING.

* A SIGNIFICANT AMOUNT OF MOISTURE IN THE AREA WILL RESULT IN
  THE POTENTIAL FOR THUNDERSTORMS TO UNLEASH HEAVY RAINFALL WITH
  ONE TO TWO INCHES POSSIBLE FROM THE STRONGEST STORMS.

* TRAVELERS SHOULD BE ALERT FOR THE POTENTIAL FOR WATER TO COVER
  LOW SPOTS INCLUDING ANY ROADS THAT RUN THROUGH WASHES. ROCKS
  AND MUD MAY WASH ONTO ROADS DUE TO RUNOFF. DIRT AND GRAVEL
  SECONDARY ROADS MAY WASH OUT OR BE IMPASSIBLE. STORM DRAINS
  AND FLOOD CONTROL CHANNELS COULD SEE RAPIDLY FLOWING WATER IN
  THEM ALONG WITH THE POTENTIAL FOR DEBRIS TO COLLECT IN THEM.
  IN ADDITION...RUNOFF MAY CAUSE FLOODING WELL AWAY FROM WHERE
  ANY RAIN FALLS ESPECIALLY IN AREAS DOWNSTREAM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION
AND PERSONS IN AND NEAR THE WATCH AREA SHOULD BE ALERT TO THE
POTENTIAL FOR HEAVY RAINFALL.

&&

$$

STACHELSKI
063 
WGUS65 KVEF 140659
FFAVEF

FLOOD WATCH
NATIONAL WEATHER SERVICE LAS VEGAS NV
1159 PM PDT FRI JUL 13 2012

...HEAVY RAINFALL POSSIBLE THROUGH SATURDAY EVENING ACROSS THE
PORTIONS OF THE MOJAVE DESERT AND THE SOUTHERN GREAT BASIN...

.MONSOON MOISTURE...COMBINE WITH AN UNSTABLE ATMOSPHERE WILL ALLOW
FOR THUNDERSTORMS FORMATION THROUGH SATURDAY EVENING ACROSS
PORTIONS OF THE MOJAVE DESERT AND THE SOUTHERN GREAT
BASIN...ESPECIALLY FROM LATE SATURDAY MORNING THROUGH EARLY
SATURDAY EVENING. RAINFALL TOTALS BETWEEN ONE AND TWO INCHES WILL
BE POSSIBLE WITH THESE THUNDERSTORMS...RESULTING IN POSSIBLE FLASH
FLOODING.

CAZ525-526-140800-
/O.EXP.KVEF.FF.A.0001.000000T0000Z-120714T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MORONGO BASIN-CADIZ BASIN-
1159 PM PDT FRI JUL 13 2012

...FLASH FLOOD WATCH WILL EXPIRE AT MIDNIGHT PDT TONIGHT...

THE FLASH FLOOD WATCH FOR A PORTION OF CALIFORNIA WILL EXPIRE AT
MIDNIGHT PDT TONIGHT. DRYING AND STABILIZING CONDITIONS WILL SHIFT
THE CHANCES FOR THUNDERSTORMS TO THE NORTH AND EAST OF THE AREA
TONIGHT AND EARLY SATURDAY THUS WILL ALLOW THE FLASH FLOOD WATCH
TO EXPIRE AS OF MIDNIGHT TONIGHT.

$$

AZZ001>003-036-CAZ522-524-527-NVZ015>022-141800-
/O.CON.KVEF.FF.A.0001.000000T0000Z-120715T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTHWEST PLATEAU-LAKE HAVASU AND FORT MOHAVE-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-DEATH VALLEY NATIONAL PARK-
EASTERN MOJAVE DESERT-SAN BERNARDINO COUNTY-
UPPER COLORADO RIVER VALLEY-LINCOLN COUNTY-NORTHEAST CLARK COUNTY-
WESTERN CLARK AND SOUTHERN NYE COUNTY-SHEEP RANGE-
SPRING MOUNTAINS-RED ROCK CANYON-LAS VEGAS VALLEY-
SOUTHERN CLARK COUNTY-
1159 PM PDT FRI JUL 13 2012 /1159 PM MST FRI JUL 13 2012/

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH SATURDAY EVENING...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHWEST ARIZONA...CALIFORNIA AND NEVADA... 
  INCLUDING THE FOLLOWING AREAS...IN NORTHWEST ARIZONA...LAKE 
  HAVASU AND FORT MOHAVE...LAKE MEAD NATIONAL RECREATION AREA... 
  NORTHWEST DESERTS AND NORTHWEST PLATEAU. IN CALIFORNIA...DEATH 
  VALLEY NATIONAL PARK...EASTERN MOJAVE DESERT AND SAN 
  BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY. IN NEVADA... 
  LAKE MEAD NATIONAL RECREATION AREA...LAS VEGAS VALLEY... 
  LINCOLN COUNTY...NORTHEAST CLARK COUNTY...SHEEP RANGE... 
  SOUTHERN CLARK COUNTY...SPRING MOUNTAINS-RED ROCK CANYON AND 
  WESTERN CLARK AND SOUTHERN NYE COUNTY. 

* THROUGH SATURDAY EVENING

* A SIGNIFICANT AMOUNT OF MOISTURE IN THE AREA WILL RESULT IN 
  THE POTENTIAL FOR THUNDERSTORMS TO UNLEASH HEAVY RAINFALL WITH 
  ONE TO TWO INCHES POSSIBLE FROM THE STRONGEST STORMS. 

* TRAVELERS SHOULD BE ALERT FOR THE POTENTIAL FOR WATER TO COVER 
  LOW SPOTS INCLUDING ANY ROADS THAT RUN THROUGH WASHES. ROCKS 
  AND MUD MAY WASH ONTO ROADS DUE TO RUNOFF. DIRT AND GRAVEL 
  SECONDARY ROADS MAY WASH OUT OR BE IMPASSIBLE. STORM DRAINS 
  AND FLOOD CONTROL CHANNELS COULD SEE RAPIDLY FLOWING WATER IN 
  THEM ALONG WITH THE POTENTIAL FOR DEBRIS TO COLLECT IN THEM. 
  IN ADDITION...RUNOFF MAY CAUSE FLOODING WELL AWAY FROM WHERE 
  ANY RAIN FALLS ESPECIALLY IN AREAS DOWNSTREAM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION
AND PERSONS IN AND NEAR THE WATCH AREA SHOULD BE ALERT TO THE
POTENTIAL FOR HEAVY RAINFALL.

&&

$$
081 
WGUS65 KVEF 141745
FFAVEF

FLOOD WATCH
NATIONAL WEATHER SERVICE LAS VEGAS NV
1045 AM PDT SAT JUL 14 2012

...HEAVY RAINFALL POSSIBLE THROUGH SATURDAY EVENING ACROSS THE
EASTERN MOJAVE DESERT AND THE SOUTHERN GREAT BASIN...

.MONSOON MOISTURE COMBINED WITH AN UNSTABLE ATMOSPHERE WILL ALLOW
FOR THUNDERSTORM FORMATION THROUGH THIS EVENING ACROSS THE
EASTERN MOJAVE DESERT AND THE SOUTHERN GREAT BASIN. RAINFALL
TOTALS BETWEEN ONE AND TWO INCHES WILL BE POSSIBLE WITH THESE
THUNDERSTORMS...RESULTING IN POSSIBLE FLASH FLOODING.

CAZ522-NVZ017-141845-
/O.CAN.KVEF.FF.A.0001.000000T0000Z-120715T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
DEATH VALLEY NATIONAL PARK-WESTERN CLARK AND SOUTHERN NYE COUNTY-
1045 AM PDT SAT JUL 14 2012

...FLASH FLOOD WATCH IS CANCELLED...

THE FLASH FLOOD WATCH FOR DEATH VALLEY NATIONAL PARK AND SOUTHERN
NYE COUNTY IN NEVADA HAS BEEN CANCELLED. DRY AND STABLE AIR
PUSHING ACROSS MUCH OF INYO COUNTY CALIFORNIA AND SOUTHERN NYE
COUNTY NEVADA TODAY WILL HINDER THUNDERSTORM DEVELOPMENT AND
MINIMIZE THE THREAT OF FLASH FLOODING FOR THESE AREAS.

$$

AZZ001>003-036-CAZ524-527-NVZ015-016-018>022-142330-
/O.CON.KVEF.FF.A.0001.000000T0000Z-120715T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTHWEST PLATEAU-LAKE HAVASU AND FORT MOHAVE-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-EASTERN MOJAVE DESERT-
SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY-LINCOLN COUNTY-
NORTHEAST CLARK COUNTY-SHEEP RANGE-SPRING MOUNTAINS-
RED ROCK CANYON-LAS VEGAS VALLEY-SOUTHERN CLARK COUNTY-
1045 AM PDT SAT JUL 14 2012 /1045 AM MST SAT JUL 14 2012/

...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHWEST ARIZONA...CALIFORNIA AND NEVADA... 
  INCLUDING THE FOLLOWING AREAS...IN NORTHWEST ARIZONA...LAKE 
  HAVASU AND FORT MOHAVE...LAKE MEAD NATIONAL RECREATION AREA... 
  NORTHWEST DESERTS AND NORTHWEST PLATEAU. IN CALIFORNIA... 
  EASTERN MOJAVE DESERT AND SAN BERNARDINO COUNTY-UPPER COLORADO 
  RIVER VALLEY. IN NEVADA...LAKE MEAD NATIONAL RECREATION AREA...
   LAS VEGAS VALLEY...LINCOLN COUNTY...NORTHEAST CLARK COUNTY... 
  SHEEP RANGE...SOUTHERN CLARK COUNTY AND SPRING MOUNTAINS-RED 
  ROCK CANYON. 

* THROUGH THIS EVENING

* A SIGNIFICANT AMOUNT OF MOISTURE WILL REMAIN OVER THE AREA AND
  RESULT  IN THE POTENTIAL FOR THUNDERSTORMS TO UNLEASH HEAVY
  RAINFALL WITH ONE TO TWO INCHES POSSIBLE FROM THE STRONGEST
  STORMS.

* TRAVELERS SHOULD BE ALERT FOR THE POTENTIAL FOR WATER TO COVER
  LOW SPOTS INCLUDING ANY ROADS THAT RUN THROUGH WASHES. ROCKS AND
  MUD MAY WASH ONTO ROADS DUE TO RUNOFF. DIRT AND GRAVEL SECONDARY
  ROADS MAY WASH OUT OR BE IMPASSIBLE. STORM DRAINS AND FLOOD
  CONTROL CHANNELS COULD SEE RAPIDLY FLOWING WATER IN THEM ALONG
  WITH THE POTENTIAL FOR DEBRIS TO COLLECT IN THEM. IN ADDITION...
  RUNOFF MAY CAUSE FLOODING WELL DOWNSTREAM FROM WHERE ANY RAIN
  FALLS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION
AND PERSONS IN AND NEAR THE WATCH AREA SHOULD BE ALERT TO THE
POTENTIAL FOR HEAVY RAINFALL.

&&

$$
138 
WGUS65 KVEF 142332
FFAVEF

FLOOD WATCH
NATIONAL WEATHER SERVICE LAS VEGAS NV
432 PM PDT SAT JUL 14 2012

...HEAVY RAINFALL AND FLASH FLOODING POSSIBLE THROUGH THIS EVENING
ACROSS EASTERN SAN BERNARDINO COUNTY CALIFORNIA...SOUTHERN CLARK
COUNTY NEVADA AND MOHAVE COUNTY ARIZONA...

.MONSOON MOISTURE COMBINED WITH AN UNSTABLE ATMOSPHERE WILL ALLOW
NUMEROUS THUNDERSTORMS TO CONTINUE THROUGH THIS EVENING ACROSS
PORTIONS OF THE EASTERN MOJAVE DESERT AND NORTHWEST ARIZONA.
RAINFALL TOTALS BETWEEN ONE AND TWO INCHES WILL BE POSSIBLE WITH
THESE THUNDERSTORMS...RESULTING IN POSSIBLE FLASH FLOODING.

NVZ015-018>020-150045-
/O.CAN.KVEF.FF.A.0001.000000T0000Z-120715T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LINCOLN COUNTY-SHEEP RANGE-SPRING MOUNTAINS-RED ROCK CANYON-
LAS VEGAS VALLEY-
432 PM PDT SAT JUL 14 2012

...FLASH FLOOD WATCH IS CANCELLED...

THE FLASH FLOOD WATCH FOR PORTIONS OF SOUTH CENTRAL NEVADA AND
SOUTHERN NEVADA HAS BEEN CANCELLED. DRY AND STABLE AIR SPREADING
INTO CENTRAL CLARK COUNTY AND MUCH OF LINCOLN COUNTY WILL LIMIT
THUNDERSTORM DEVELOPMENT THE REST OF THIS AFTERNOON AND EVENING.
THE THREAT OF FLASH FLOODING FOR THESE AREAS...INCLUDING THE LAS
VEGAS VALLEY...HAS DIMINISHED SIGNIFICANTLY AND THE FLASH FLOOD
WATCH HAS BEEN CANCELLED.

$$

AZZ001>003-036-CAZ524-527-NVZ016-021-022-150700-
/O.CON.KVEF.FF.A.0001.000000T0000Z-120715T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTHWEST PLATEAU-LAKE HAVASU AND FORT MOHAVE-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-EASTERN MOJAVE DESERT-
SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY-
NORTHEAST CLARK COUNTY-SOUTHERN CLARK COUNTY-
432 PM PDT SAT JUL 14 2012 /432 PM MST SAT JUL 14 2012/

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT PDT
/MIDNIGHT MST/ TONIGHT...

THE FLASH FLOOD WATCH CONTINUES FOR

* PORTIONS OF NORTHWEST ARIZONA...CALIFORNIA AND SOUTHERN 
  NEVADA...INCLUDING THE FOLLOWING AREAS...IN NORTHWEST 
  ARIZONA...LAKE HAVASU AND FORT MOHAVE...LAKE MEAD NATIONAL 
  RECREATION AREA...NORTHWEST DESERTS AND NORTHWEST PLATEAU. IN 
  CALIFORNIA...EASTERN MOJAVE DESERT AND SAN BERNARDINO COUNTY- 
  UPPER COLORADO RIVER VALLEY. IN SOUTHERN NEVADA...LAKE MEAD 
  NATIONAL RECREATION AREA...NORTHEAST CLARK COUNTY AND SOUTHERN 
  CLARK COUNTY. 

* UNTIL MIDNIGHT PDT /MIDNIGHT MST/ TONIGHT

* A SIGNIFICANT AMOUNT OF MOISTURE WILL REMAIN OVER FAR SOUTHERN
  NEVADA...SOUTHEAST CALIFORNIA AND NORTHWEST ARIZONA RESULTING IN
  THE POTENTIAL FOR THUNDERSTORMS TO UNLEASH HEAVY RAINFALL THIS
  EVENING WITH ONE TO TWO INCHES POSSIBLE FROM THE STRONGEST
  STORMS.

* TRAVELERS SHOULD BE ALERT FOR THE POTENTIAL FOR WATER TO COVER 
  LOW SPOTS INCLUDING ANY ROADS THAT RUN THROUGH WASHES. ROCKS 
  AND MUD MAY WASH ONTO ROADS DUE TO RUNOFF. DIRT AND GRAVEL 
  SECONDARY ROADS MAY WASH OUT OR BE IMPASSIBLE. STORM DRAINS 
  AND FLOOD CONTROL CHANNELS COULD SEE RAPIDLY FLOWING WATER IN 
  THEM ALONG WITH THE POTENTIAL FOR DEBRIS TO COLLECT IN THEM. 
  IN ADDITION... RUNOFF MAY CAUSE FLOODING WELL DOWNSTREAM FROM 
  WHERE ANY RAIN FALLS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FLASH FLOOD WATCH MEANS THAT CONDITIONS MAY DEVELOP THAT LEAD
TO FLASH FLOODING. FLASH FLOODING IS A VERY DANGEROUS SITUATION
AND PERSONS IN AND NEAR THE WATCH AREA SHOULD BE ALERT TO THE
POTENTIAL FOR HEAVY RAINFALL.

&&

$$
344 
WGUS65 KVEF 150657
FFAVEF

FLOOD WATCH
NATIONAL WEATHER SERVICE LAS VEGAS NV
1157 PM PDT SAT JUL 14 2012

...FLASH FLOOD WATCH WILL BE ALLOWED TO EXPIRE....

.THE FLASH FLOOD WATCH FOR LINCOLN...EASTERN CLARK...AND THE
EASTERN MOJAVE DESERT OF SAN BERNARDINO COUNTY WILL BE ALLOWED TO
EXPIRE. 

AZZ001>003-036-CAZ524-527-NVZ016-021-022-150800-
/O.CAN.KVEF.FF.A.0001.000000T0000Z-120715T0700Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NORTHWEST PLATEAU-LAKE HAVASU AND FORT MOHAVE-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-EASTERN MOJAVE DESERT-
SAN BERNARDINO COUNTY-UPPER COLORADO RIVER VALLEY-
NORTHEAST CLARK COUNTY-SOUTHERN CLARK COUNTY-
1157 PM PDT SAT JUL 14 2012 /1157 PM MST SAT JUL 14 2012/

...FLASH FLOOD WATCH IS CANCELLED...

THE FLASH FLOOD WATCH FOR PORTIONS OF NORTHWEST ARIZONA...
CALIFORNIA AND SOUTHERN NEVADA HAS BEEN ALLOWED TO EXPIRE.
THUNDERSTORMS WILL CONTINUE THROUGH THE OVERNIGHT HOURS BUT THE
THREAT OF FLASH FLOODING IS REDUCED.

$$

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 12, 10:30 AM MST, 26 minutes earlier.

Area forecast discussion, Jul 12, 10:30 AM MST, 26 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
1030 AM PDT THU JUL 12 2012

.SYNOPSIS...MONSOON MOISTURE WILL CONTINUE TO INCREASE FROM THE
SOUTHEAST THROUGH FRIDAY AND REMAIN ENTRENCHED OVER THE AREA INTO
SATURDAY. THIS WILL RESULT IN COOLER TEMPERATURES AND INCREASING
CHANCES OF THUNDERSTORMS. SOME STORMS MAY PRODUCE HEAVY RAIN LATE
TONIGHT THROUGH FRIDAY. MUCH OF THE AREA WILL STILL HAVE A CHANCE OF
THUNDERSTORMS THROUGH SATURDAY THEN DRIER AIR WILL GRADUALLY PUSH IN
FROM THE WEST SUNDAY THROUGH WEDNESDAY.
&&

.UPDATE...AN EXTENSIVE SHIELD OF MID AND HIGH LEVEL CLOUDS COVERED
MOST OF THE FORECAST AREA THIS MORNING AND THIS WILL MODULATE
HEATING CONSIDERABLY THROUGH EARLY AFTERNOON. HOWEVER...THERE WILL
BE DYNAMIC SUPPORT FOR CONVECTIVE DEVELOPMENT THANKS TO THE INVERTED
TROUGH OVER THE NORTHERN GULF OF CALIFORNIA THAT THIS FORECAST TO
LIFT UP THROUGH SOUTHEAST CALIFORNIA THIS EVENING AND INTO SOUTHERN
NEVADA OVERNIGHT AND FRIDAY. THIS WILL BE THE MAIN FEATURE TO WATCH
AS A FOCUSING MECHANISM FOR THUNDERSTORMS THROUGH FRIDAY. THIS WILL
COMBINE WITH INCREASING PRECIPITABLE WATER VALUES OF 1.5-2.0 INCHES
FRIDAY TO PRODUCE HEAVY RAIN PRODUCING STORMS AND AN ELEVATED FLASH
FLOOD THREAT.

THERE IS ALSO A GOOD SETUP FOR THUNDERSTORMS OVER THE ARIZONA RIM
COUNTRY THIS AFTERNOON TO BE CARRIED IN 20-25 KT EASTERLY STEERING
FLOW INTO MOHAVE COUNTY AND POSSIBLY SOUTHERN NEVADA THROUGH EARLY
EVENING. THE MAIN THREAT WOULD BE DAMAGING WINDS. BRIEF HEAVY RAIN
CAN ALSO BE EXPECTED BUT STORMS SHOULD BE RELATIVELY FAST MOVING
WHICH WILL MITIGATE FLASH FLOODING . NO IMMEDIATE CHANGES TO THE
FORECAST GRIDS ARE NEEDED BUT A LATE MORNING OR EARLY AFTERNOON
UPDATE MAY BE NEEDED TO HIGHLIGHT THE AFOREMENTIONED CONCERNS.
&&

.AVIATION...FOR MCCARRAN...SCT CLOUDS AOA 8-12K FEET WITH BKN CLOUDS
AOA 14K FEET. ISOLD-SCT SHRA AND TSRA ARE EXPECTED AGAIN THIS
AFTERNOON AFTER 18Z AFFECTING ALL APPROACH CORRIDORS ESPECIALLY IN
THE PEACH SPRINGS...MORMON MESA...AND DAGGETT CORRIDORS. WINDS WILL
BE GUSTY AND ERRATIC NEAR STORMS...BUT THE GENERAL WIND FLOW WILL BE
SOUTHWEST 10-15 KTS. TEMPS ARE EXPECTED TO BE AOA 100F DEGREES FROM
AROUND 19Z THURSDAY TO 05Z FRIDAY.

FOR THE REST OF SOUTHERN NEVADA...NORTHWEST ARIZONA...AND SOUTHEAST
CALIFORNIA...ISOLATED SHRA/TSRA THROUGH MUCH OF TODAY WITH THE
GREATEST CHANCES THIS AFTERNOON WITH THE GREATEST COVERAGE IN MOHAVE
COUNTY...THE SAN BERNARDINO COUNTIES DESERTS...SOUTHERN CLARK AND
EASTERN LINCOLN COUNTIES AND THE SIERRA NEVADA OF INYO COUNTY. THE
PRIMARY THREAT IN AND NEAR STORMS WILL BE GUSTY AND ERRATIC WINDS
AND REDUCED CIGS AND VSBY. OTHERWISE WINDS WILL FAVOR DIURNAL
DIRECTIONAL TRENDS WITH SCT-BKN CLOUDS AOA 8K-12K FEET.
&&

.PREV DISCUSSION...
416 AM PDT THU JUL 12 2012

.SHORT TERM...TODAY THROUGH SATURDAY NIGHT...ISOLATED SHOWERS AND
THUNDERSTORMS HAVE CONTINUED INTO THE EARLY MORNING HOURS AS MONSOON
MOISTURE INCREASES. ONE AREA OF SHOWERS AND THUNDERSTORMS HAS BEEN
OVER CLARK AND LINCOLN COUNTIES...WITH STORMS OVER CLARK COUNTY
MOVING WEST INTO SOUTHERN NYE COUNTY AND INYO COUNTIES. THE OTHER
AREA IS OVER SOUTHERN MOHAVE AND SOUTHEAST SAN BERNARDINO COUNTY.
THIS AREA HAS DEVELOPED IN THE PAST HOUR AND IS ASSOCIATED WITH A
THUNDERSTORM COMPLEX OVER SOUTHWEST ARIZONA WHICH WAS BEING KICKED
OFF BY SHORTWAVE OVER THE NORTHERN GULF OF CALIFORNIA.

IN THIS TYPE OF AIR MASS KEPT IT SIMPLE THE REST OF THIS MORNING AS
AT ANY TIME AN ISOLATED SHOWER/THUNDERSTORM COULD DEVELOP.
HOWEVER...DID GO WITH SCATTERED COVERAGE OF THUNDERSTORMS THE REST
OF THIS MORNING MAINLY SOUTH OF INTERSTATE 40. SHORTWAVE OVER THE
NORTHERN GULF OF CALIFORNIA WILL BE THE FEATURE TO WATCH TODAY.
MODELS SHIFT WAVE NORTHWEST TO SAN DIEGO THIS AFTERNOON WHICH SHOULD
KEEP THUNDERSTORMS GOING WELL INTO THIS AFTERNOON IN THE MORONGO
BASIN AND NORTHWEST SAN BERNARDINO COUNTY. LOCALLY HEAVY RAINFALL
POSSIBLE TODAY...BUT STORM MOTION SHOULD LIMIT THE POTENTIAL OF
FLASH FLOODING.

FOR FRIDAY THROUGH SATURDAY...DID NOT MAKE ANY SIGNIFICANT CHANGES
OTHER THAN ADDING THE MENTION OF HEAVY RAINFALL TO SEVERAL ZONES FOR
FRIDAY. MODELS STILL ADVERTISING PRECIPITABLE WATER VALUES IN EXCESS
OF 1 INCH ACROSS THE ENTIRE AREA WITH VALUES UP AROUND 1.5 INCHES IN
PARTS OF CLARK...MOHAVE AND ERN SAN BERNARDINO COUNTIES. IN
ADDITION DYNAMICS WILL BE PROVIDED BY THE SHORTWAVE NEAR SAN DIEGO
MOVING NORTHEAST OVER THE MOJAVE DESERT AND JETSTREAK ENHANCING
UPPER LEVEL DIVERGENCE. LATER SHIFTS WILL NEED TO CONSIDER THE
POSSIBILITY OF A FLASH FLOOD WATCH FOR FRIDAY. PLENTY OF MOISTURE
STILL AROUND ON SATURDAY ACROSS THE EASTERN HALF OF THE AREA. OUR
TEMPERATURE FORECAST FOR FRIDAY AND SATURDAY MAY BE TOO WARM AS
READINGS WILL HINGE ON CLOUD COVER AND PRECIPITATION.

.LONG TERM...MODELS CONTINUE TO SHOWING DRYING FROM THE WEST TO EAST
SUNDAY THROUGH WEDNESDAY WITH THUNDERSTORM CHANCES BEING PUSHED
FURTHER EAST EACH DAY. HOWEVER...IT ALL DEPENDS ON HOW THE DIGGING
TROUGH PROGRESSES AND HOW MUCH THUNDERSTORM ACTIVITY THERE IS TO THE
EAST AND SOUTH TO REALLY DETERMINE HOW FAST WE DRY OUT. LEFT THE
HIGHEST POPS OVER MOHAVE...LINCOLN...CLARK AND EASTERN SAN
BERNARDINO COUNTIES SUNDAY AND MONDAY WITH CHANCE TO HIGH CHANCES.
DID LOWER POPS TO ONLY SLIGHT CHANCES TUESDAY AND WEDNESDAY MAINLY
FOR LINCOLN AND MOHAVE COUNTIES WITH DRY CONDITIONS ELSEWHERE. WITH
THE WEAK TROUGH OVER THE AREA TEMPERATURES WILL HE HELD DOWN TO
AROUND NORMAL TO SLIGHTLY BELOW NORMAL THROUGH THE EXTENDED PERIOD.
&&

.FIRE WEATHER...COVERAGE OF DRY THUNDERSTORMS MAY REACH CRITICAL
LEVELS OVER THE SIERRA NEVADA TODAY AND THE FIRE WEATHER WATCH HAS
BEEN UPGRADED TO A RED FLAG WARNING. THUNDERSTORM COVERAGE WILL
INCREASE THROUGH FRIDAY AS MONSOON MOISTURE MOVES IN FROM THE SOUTH.
SOME STORMS WILL BE DRY THROUGH TODAY BUT STORMS WILL QUICKLY BECOME
WET FROM SOUTH TO NORTH LATE THURSDAY THROUGH FRIDAY. &&

.VEF WATCHES/WARNINGS/ADVISORIES...
NV...NONE.
AZ...NONE.
CA...RED FLAG WARNING FROM NOON TODAY TO 10 PM PDT THIS EVENING FOR
     CAZ226.
&&

UPDATE...ADAIR
AVIATION...STACHELSKI
PREV DISCUSSION...PIERCE/GORELOW

HTTP://WEATHER.GOV/LASVEGAS
Hazardous weather outlook, Jul 12, 5:31 AM MST, 5 hours 25 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE LAS VEGAS NV
531 AM PDT THU JUL 12 2012

CAZ519-520-130700-
EASTERN SIERRA SLOPES-OWENS VALLEY-
531 AM PDT THU JUL 12 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT

A RED FLAG WARNING FOR DRY LIGHTNING HAS BEEN ISSUED FOR THE
OWENS VALLEY AND SOUTHERN INYO FOREST FROM NOON UNTIL 9 PM THIS
EVENING. LIGHTNING AND GUSTY WINDS WILL LIKELY OCCUR WITH
THUNDERSTORMS THROUGH THIS EVENING. THE STORMS WILL LIKELY BECOME
WETTER OVERNIGHT.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

MOISTURE WILL CONTINUE TO INCREASE INTO FRIDAY LEADING TO AN
INCREASED CHANCE OF THUNDERSTORMS. DRIER AIR WILL START TO MOVE
IN FROM THE WEST SATURDAY THROUGH EARLY NEXT WEEK ALTHOUGH THERE
WILL STILL BE A SLIGHT CHANCE OF THUNDERSTORMS ESPECIALLY OVER THE
EAST SLOPES OF THE SOUTHERN SIERRA NEVADA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. HOWEVER...
SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

AZZ001>003-036-CAZ521>527-NVZ014>022-130700-
NORTHWEST PLATEAU-LOWER COLORADO RIVER VALLEY-NORTHWEST DESERTS-
LAKE MEAD NATIONAL RECREATION AREA-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-
531 AM PDT THU JUL 12 2012 /531 AM MST THU JUL 12 2012/

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

.DAY ONE...TODAY AND TONIGHT

ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS WILL PRODUCE
WIND GUSTS UP TO 50 MPH...BRIEF BURSTS OF RAIN AND DEADLY
LIGHTNING. THE FAST STORM MOTION TO THE WEST SHOULD LIMIT THE
POTENTIAL OF FLASH FLOODING. ADDED DYNAMICS TONIGHT WILL BRING AN
INCREASE IN THUNDERSTORMS AND THE POTENTIAL OF HEAVY RAINFALL.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY

FRIDAY AND SATURDAY ALL POINT TO A GREATER THREAT OF FLASH
FLOODING ACROSS MAINLY CLARK...LINCOLN AND MOHAVE COUNTIES. DRIER
AIR WILL GRADUALLY PUSH IN FROM THE WEST LATE SUNDAY THROUGH
WEDNESDAY FOR A DECREASE IN THUNDERSTORM COVERAGE. REMEMBER...MOST
FLASH FLOOD DEATHS OCCUR IN VEHICLES. NEVER DRIVE YOUR CAR
INTO AN AREA WHERE WATER COVERS THE ROADWAY...TURN AROUND...DONT
DROWN.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. HOWEVER...
SPOTTERS ARE ENCOURAGED TO REPORT ANY SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 12, 3:01 PM MSTSevere Thunderstorm WarningVEFMohave44 min
Jul 12, 6:27 AM MSTRed Flag WarningVEFInyo, Tulare16 hr

Nearby

Flash Flood Watches in Nevada, 2012Flash Flood Watches in California, 2012Flash Flood Watches in Arizona, 2012Every flash flood watch in 2012

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; radar from the NEXRAD Level II archive.