Alert archive / Nevada / Flash Flood Warnings in 2012
Flash Flood Warning 128, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Aug 18, 2012, 5:45 PM PDT for Lincoln County, Nevada. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 18, 2012, 5:45 PM PDT (00:45 UTC)
- Expired
- Aug 18, 2012, 7:45 PM PDT
- In force
- 2 hr
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
County Lincoln County, NV
The radar
The Cedar City radar (KICX), 110 km from the middle of the area, began a volume at 00:47 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 00:00Z, 0.8 hours before the alert went out and 189 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
- 28 J/kg
- Mixed-layer CIN
- -211 J/kg
- Mixed-layer LCL
- 2672 m above ground
- 0-6 km bulk shear
- 3 kt
- 0-1 km storm-relative helicity
- 4 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
655
WGUS55 KVEF 190045
FFWVEF
NVC017-190245-
/O.NEW.KVEF.FF.W.0128.120819T0045Z-120819T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
545 PM PDT SAT AUG 18 2012
THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EAST CENTRAL LINCOLN COUNTY IN SOUTH CENTRAL NEVADA...
* UNTIL 745 PM PDT.
* AT 535 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN FROM A THUNDERSTORM 7 MILES NORTHWEST OF BEAVER DAM
STATE PARK...OR 21 MILES EAST OF CALIENTE...MOVING SOUTHWEST AT 15
MPH.
* LOCATIONS IMPACTED INCLUDE...
BEAVER DAM AND BEAVER DAM STATE PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
CAMPERS AND HIKERS SHOULD BE ALERT TO THE POSSIBILITY OF RAPIDLY
RISING WATER AND BE PREPARED TO MOVE QUICKLY TO HIGHER GROUND IF
FLASH FLOODING IS OBSERVED.
&&
LAT...LON 3772 11404 3764 11405 3763 11403 3743 11405
3752 11435 3774 11418
$$
ASG2 follow-up statements
614
WGUS75 KVEF 190143
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
643 PM PDT SAT AUG 18 2012
NVC017-190245-
/O.CON.KVEF.FF.W.0128.000000T0000Z-120819T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LINCOLN NV-
643 PM PDT SAT AUG 18 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 PM PDT FOR EAST
CENTRAL LINCOLN COUNTY...
AT 631 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM PRODUCING MODERATE TO OCCASIONAL HEAVY RAIN.
THIS STORM WAS LOCATED 10 MILES WEST OF BEAVER DAM STATE PARK...OR
15 MILES EAST SOUTHEAST OF CALIENTE...MOVING SOUTHWEST AT 10 MPH.
LOCATIONS IMPACTED INCLUDE...
THE ROADWAY LEADING INTO BEAVER DAM STATE PARK AND MAINLY RURAL
AREAS OF EAST CENTRAL LINCOLN COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON
AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE
RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED
ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN!
REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL
WEATHER SERVICE FACEBOOK PAGE...OR BY USING THE TWITTER HASHTAG...
NWSVEGAS.
&&
LAT...LON 3772 11404 3764 11405 3763 11403 3743 11405
3752 11435 3774 11418
$$
JS514
WGUS75 KVEF 190245
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
745 PM PDT SAT AUG 18 2012
NVC017-190254-
/O.EXP.KVEF.FF.W.0128.000000T0000Z-120819T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LINCOLN NV-
745 PM PDT SAT AUG 18 2012
...THE FLASH FLOOD WARNING WILL EXPIRE AT 745 PM PDT FOR EAST CENTRAL
LINCOLN COUNTY...
THUNDERSTORMS IN THE BEAVER DAM AREA HAVE DISSIPATED AND FLASH
FLOODING IS NO LONGER EXPECTED IN THIS AREA.
LAT...LON 3772 11404 3764 11405 3763 11403 3743 11405
3752 11435 3774 11418
$$
JSThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 2:30 PM PDT | Areal Flood Advisory | VEF | Clark | 33 min |
Nearby
Flash Flood Warnings in Nevada, 2012Every flash flood warning 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.