Alert archive / California / Flash Flood Warnings in 2011
Flash Flood Warning 63, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 30, 2011, 2:07 PM PDT for Inyo County, California. It was in force for 3 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
- Jul 30, 2011, 2:07 PM PDT (21:07 UTC)
- Expired
- Jul 30, 2011, 5:00 PM PDT
- In force
- 3 hr
- Issued by
- NWS Las Vegas, NV
- Area
- Storm-based polygon
- Flood severity
- None
County Inyo County, CA
The radar
The San Joaquin Valley radar (KHNX), 133 km from the middle of the area, began a volume at 21:08 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, 9.1 hours before the alert went out and 234 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
- 2926 m above ground
- 0-6 km bulk shear
- 20 kt
- 0-1 km storm-relative helicity
- 42 m²/s²
- 0-3 km storm-relative helicity
- 85 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
532
WGUS55 KVEF 302107
FFWVEF
CAC027-310000-
/O.NEW.KVEF.FF.W.0063.110730T2107Z-110731T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
207 PM PDT SAT JUL 30 2011
THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
WEST CENTRAL INYO COUNTY IN EASTERN CALIFORNIA...
* UNTIL 500 PM PDT.
* AT 202 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN FROM A THUNDERSTORM 9 MILES SOUTHWEST OF DIAZ
LAKE...OR 11 MILES SOUTHWEST OF LONE PINE. THE STORM PRODUCING VERY
HEAVY RAIN WAS NEARLY STATIONARY. SNOWMELT FROM THE SIERRA
CRESTS WILL ALSO LIKELY AGGRAVATE THE THREAT OF FLOODING.
* LOCATIONS IMPACTED INCLUDE...DIAZ LAKE....TUTTLE CREEK...AND
LIBKETT CREEK.
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 TWITTER #NWSVEGAS.
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 3651 11823 3657 11805 3648 11801 3636 11811
3637 11814 3641 11816 3642 11819 3646 11824
$$
JGG2 follow-up statements
313
WGUS75 KVEF 302230
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
330 PM PDT SAT JUL 30 2011
CAC027-310000-
/O.CON.KVEF.FF.W.0063.000000T0000Z-110731T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
INYO CA-
330 PM PDT SAT JUL 30 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 500 PM PDT FOR WEST
CENTRAL INYO COUNTY...
AT 314 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE THUNDERSTORMS PRODUCING VERY HEAVY RAIN NEAR THE SIERRA
CREST ON THE WEST EDGE OF THE WARNING AREA. CREEKS COMING OUT OF THE
SIERRA JUST SOUTH OF LONE PINE HAVE THE POTENTIAL TO PRODUCE
FLOODING.
LOCATIONS IMPACTED INCLUDE...DIAZ LAKE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FLASH FLOODING IS EXPECTED IN WASHES...LOW WATER CROSSINGS AND ON
AREA ROADWAYS. FLASH FLOODING IS NATURES NUMBER ONE KILLER. TO ESCAPE
RISING WATER...MOVE TO HIGHER GROUND. NEVER TRY TO CROSS A FLOODED
ROADWAY OR WALK THROUGH FLOODWATERS. TURN AROUND...DONT DROWN!
REPORT FLOODING BY POSTING YOUR REPORT TO THE LAS VEGAS NATIONAL
WEATHER SERVICE FACEBOOK PAGE OR TWITTER #NWSVEGAS.
&&
LAT...LON 3651 11823 3657 11805 3648 11801 3636 11811
3637 11814 3641 11816 3642 11819 3646 11824
$$
JH321
WGUS75 KVEF 302352
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
452 PM PDT SAT JUL 30 2011
CAC027-310001-
/O.EXP.KVEF.FF.W.0063.000000T0000Z-110731T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
INYO CA-
452 PM PDT SAT JUL 30 2011
...THE FLASH FLOOD WARNING WILL EXPIRE AT 500 PM PDT FOR WEST CENTRAL
INYO COUNTY...
THE WARNED AREA HAS NOT RECEIVED ANY HEAVY RAIN FOR QUITE SOME TIME
AND THERE HAVE BEEN NO REPORTS OF FLOODING IN THE AREA.
LAT...LON 3651 11823 3657 11805 3648 11801 3636 11811
3637 11814 3641 11816 3642 11819 3646 11824
$$
JHThe office that day
Everything else NWS Las Vegas, NV issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 6:07 PM PDT | Flash Flood Warning | VEF | Inyo | 53 min |
| Jul 29, 6:55 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 80 min |
| Jul 29, 7:02 PM PDT | Flash Flood Warning | VEF | Inyo | 118 min |
| Jul 29, 8:21 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 84 min |
| Jul 29, 8:53 PM PDT | Flash Flood Warning | VEF | Inyo | 82 min |
| Jul 30, 12:57 PM PDT | Flash Flood Warning | VEF | Inyo | 2 hr |
| Jul 30, 1:52 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 32 min |
| Jul 30, 2:17 PM PDT | Severe Thunderstorm Warning | VEF | San Bernardino | 43 min |
| Jul 30, 2:20 PM PDT | Flash Flood Warning | VEF | San Bernardino | 115 min |
| Jul 30, 4:07 PM PDT | Areal Flood Advisory | VEF | Inyo | 113 min |
| Jul 30, 4:35 PM PDT | Flash Flood Warning | VEF | San Bernardino | 115 min |
Nearby
Flash Flood Warnings in California, 2011Every flash flood warning in 2011
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.