Alert archive / Nevada / Flash Flood Watches in 2014
Flash Flood Watch 1, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood watch at Feb 27, 2014, 2:39 PM PST for Clark County, Nye County, Nevada. It took effect at Feb 28, 2014, 10:00 AM PST. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- Feb 27, 2014, 2:39 PM PST (22:39 UTC)
- In effect from
- Feb 28, 2014, 10:00 AM PST
- Expired
- Feb 28, 2014, 10:00 PM PST
- In force
- 12 hr
- Issued by
- NWS Las Vegas, NV
- Flood severity
- None
Counties Clark County, NV, Nye County, NV
The radar
The Las Vegas radar (KESX), 176 km from the middle of the area, began a volume at 22:39 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, 10.7 hours before the alert went out and 86 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
- 1600 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 160 m²/s²
- 0-3 km storm-relative helicity
- 193 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Feb 27, 8:21 AM PST, 6 hours 18 minutes earlier.
Area forecast discussion, Feb 27, 8:21 AM PST, 6 hours 18 minutes before
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</html>Hazardous weather outlook, Feb 27, 5:21 AM PST, 9 hours 18 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE LAS VEGAS NV 521 AM PST THU FEB 27 2014 CAZ519-521-280800- EASTERN SIERRA SLOPES-WHITE MOUNTAINS OF INYO COUNTY- 521 AM PST THU FEB 27 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST CALIFORNIA. .DAY ONE...TODAY AND TONIGHT SNOW SHOWERS OVER THE SOUTHERN SIERRA WILL TAPER OFF EARLY THIS MORNING WILL LITTLE ADDITIONAL SNOW ACCUMULATION EXPECTED AFTER SUNRISE. GUSTY WEST WINDS UP TO 55 MPH WILL OCCUR IN SOME AREAS ALONG THE EASTERN SIERRA BUT STRONG WINDS ARE EXPECTED TO BE CONFINED ABOVE THE OWENS VALLEY. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY SNOW IS EXPECTED TO BEGIN FRIDAY MORNING...BE HEAVIEST FROM LATE FRIDAY MORNING INTO FRIDAY AFTERNOON AND TAPER OFF ON FRIDAY EVENING. PERIODS OF SNOW ARE EXPECTED ON SATURDAY. TOTAL SNOW IS EXPECTED TO BE 1 TO 2 FEET ABOVE 8000 FEET WITH THE HIGHEST TOTALS ALONG THE CREST OF THE SOUTHERN SIERRA. WIND GUSTS OVER 40 MPH MAY PRODUCE NEAR WHITE-OUT CONDITIONS AT TIMES. SNOW LEVELS SHOULD START OUT BETWEEN 6500 AND 7500 FEET THEN FALL TO NEAR 5500 FEET BY FRIDAY EVENING. .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. NVZ019-280800- SPRING MOUNTAINS- 521 AM PST THU FEB 27 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHERN NEVADA. .DAY ONE...TODAY AND TONIGHT WEST WINDS GUSTING BETWEEN 40 AND 50 MPH ARE EXPECTED IN RED ROCK CANYON AND SOME ARES ALONG THE EAST SLOPES OF THE SPRING MOUNTAINS THROUGH LATE THIS AFTERNOON THEN SPEEDS WILL DIMINISH OVERNIGHT. SNOW SHOWERS OVER THE HIGHER ELEVATIONS WILL TAPER OFF LATE THIS MORNING. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY A STRONG MOIST PACIFIC STORM IS STILL ON TRACK TO BRING SIGNIFICANT RAIN AND SNOW TO THE SPRING MOUNTAINS FRIDAY THROUGH SATURDAY MORNING. INITIAL SNOW LEVELS MAY BE NEAR 9000 FEET FRIDAY MORNING AS PRECIPITATION BEGINS. THIS WILL ALLOW RAIN TO FALL ON MUCH OF THE CARPENTER ONE BURN AREA OF THE SPRING MOUNTAINS...ESPECIALLY TROUT AND LOVELL CANYONS. THOSE WITH INTERESTS AFFECTED BY THE DRAINAGES FROM THE CARPENTER ONE BURN AREA SHOULD STAY TUNED TO THE LATEST WEATHER INFORMATION AND REMAIN ALERT FOR POTENTIAL IMPACTS. SNOW LEVELS WILL FALL FRIDAY NIGHT AND THE MT CHARLESTON COMMUNITY AND LEE CANYON MAY SEE SIGNIFICANT SNOW ACCUMULATIONS TO IMPACT TRAVEL FRIDAY NIGHT THROUGH SATURDAY MORNING. .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. CAZ523-280800- WESTERN MOJAVE DESERT- 521 AM PST THU FEB 27 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST CALIFORNIA. .DAY ONE...TODAY AND TONIGHT A STORM SYSTEM MOVING ACROSS THE AREA WILL BRING GUSTY WEST WINDS UP TO 45 MPH ACROSS THE WESTERN MOJAVE DESERT OF SAN BERNARDINO COUNTY THROUGH EARLY THIS EVENING. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY A STRONG AND MOIST STORMS IS STILL ON TRACK TO MOVE INTO THE AREA FRIDAY AND PERSIST INTO SATURDAY RESULTING WIDESPREAD RAIN AND GUSTY WINDS AT TIMES. THERE IS POTENTIAL FOR SOUTH WINDS GUSTING OVER 40 MPH ON FRIDAY. HAZARDOUS WEATHER IS NOT EXPECTED SUNDAY THROUGH TUESDAY. .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-CAZ520-522-524>527-NVZ014>018-020>022-280800- NORTHWEST PLATEAU-LOWER COLORADO RIVER VALLEY-NORTHWEST DESERTS- LAKE MEAD NATIONAL RECREATION AREA-OWENS VALLEY- DEATH VALLEY NATIONAL PARK-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-LAS VEGAS VALLEY-SOUTHERN CLARK COUNTY- 521 AM PST THU FEB 27 2014 /621 AM MST THU FEB 27 2014/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST ARIZONA...CALIFORNIA AND SOUTHERN NEVADA. .DAY ONE...TODAY AND TONIGHT SCATTERED TO NUMEROUS SHOWERS AND A FEW BRIEF THUNDERSTORMS ARE EXPECTED OVER CENTRAL NYE AND LINCOLN COUNTIES TODAY. SHOWERS WILL TAPER THIS AFTERNOON FOLLOWED BY A LULL IN THE WEATHER TONIGHT AHEAD OF A MUCH MORE POTENT PACIFIC STORM MOVING IN FRIDAY. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY WIDESPREAD RAIN...HIGH MOUNTAIN SNOW AND WINDY CONDITIONS WILL IMPACT THE REGION FRIDAY THROUGH SATURDAY MORNING. PRECIPITATION WILL BECOME MORE SHOWERY LATE SATURDAY INTO SUNDAY. RAIN MAY REACH THE LAS VEGAS VALLEY BY MID FRIDAY MORNING BUT MORE LIKELY BY FRIDAY AFTERNOON WHICH WILL IMPACT THE COMMUTE. RAINFALL AMOUNTS BETWEEN ONE-THIRD AND THREE-QUARTERS OF AN INCH WILL BE COMMON ACROSS THE REGION. LOCAL AMOUNTS OVER ONE INCH CAN BE EXPECTED. THERE WILL ALSO BE A SLIGHT CHANCE OF THUNDERSTORMS OVER SOUTHEAST NEVADA...SOUTHERN NEVADA AND NORTHWEST ARIZONA SATURDAY. STEADY RAINFALL WILL TAPER OFF FRIDAY NIGHT AND BECOME MORE SHOWERY SATURDAY FOLLOWED BY CLEARING SUNDAY. .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.
In the hours before
Local storm report, Feb 27, 1:42 PM PST, 57 minutes before
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</html>The office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 27, 6:43 AM PST | Winter Storm Warning | VEF | Inyo | 37 hr |
Nearby
Flash Flood Watches in Nevada, 2014Every flash flood watch in 2014
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.