Alert archive / California / Flash Flood Warnings in 2011
Flash Flood Warning 62, NWS Las Vegas, NV
NWS Las Vegas, NV issued this flash flood warning at Jul 30, 2011, 12:57 PM PDT for Inyo County, California. 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
- Jul 30, 2011, 12:57 PM PDT (19:57 UTC)
- Expired
- Jul 30, 2011, 3:00 PM PDT
- In force
- 2 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), 145 km from the middle of the area, began a volume at 19:56 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
Reno, NV (KREV), launched 12:00Z, 8.0 hours before the alert went out and 256 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
- 2720 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 41 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
820
WGUS55 KVEF 301957
FFWVEF
CAC027-302200-
/O.NEW.KVEF.FF.W.0062.110730T1957Z-110730T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
1257 PM PDT SAT JUL 30 2011
THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EXTREME NORTHWESTERN INYO COUNTY IN EASTERN CALIFORNIA...
* UNTIL 300 PM PDT.
* AT 1252 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
VERY HEAVY RAIN FROM A THUNDERSTORM NEAR CREEKSIDE RV PARK...
OR JUST EAST OF ASPENDELL. THE STORM PRODUCING VERY HEAVY RAIN
WAS NEARLY STATIONARY.
* LOCATIONS IMPACTED INCLUDE...4 JEFFREY...BIG TREES CAMPGROUND...
CREEKSIDE RV PARK AND FORKS CAMPGROUND...AND BISHOP 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.
&&
LAT...LON 3730 11856 3736 11849 3726 11849 3720 11852
3725 11858
$$
JGG2 follow-up statements
302
WGUS75 KVEF 302053
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
153 PM PDT SAT JUL 30 2011
CAC027-302200-
/O.CON.KVEF.FF.W.0062.000000T0000Z-110730T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
INYO CA-
153 PM PDT SAT JUL 30 2011
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 300 PM PDT FOR
EXTREME NORTHWESTERN INYO COUNTY...
AT 148 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A THUNDERSTORM PRODUCING MODERATE TO HEAVY RAIN. THIS
STORM WAS LOCATED NEAR CREEKSIDE RV PARK...OR JUST EAST OF
ASPENDELL. THE THUNDERSTORM WITH EXCESSIVE RAIN WAS NEARLY
STATIONARY. WHILE THE HEAVIEST RAIN APPEARS TO HAVE ENDED...RUNOFF
FROM PREVIOUS RAINS MAY CONTINUE TO LEAD TO FLASH FLOODING.
LOCATIONS IMPACTED INCLUDE...BISHOP CREEK...4 JEFFREY...BIG TREES
CAMPGROUND AND CREEKSIDE RV PARK
PRECAUTIONARY/PREPAREDNESS ACTIONS...
CAMPERS AND HIKERS SHOULD BE ALERT TO THE POSSIBILITY OF RAPIDLY
RISING WATER AND BE PREPARED TO MOVE QUICKLY TO HIGHER GROUND IF
FLASH FLOODING IS OBSERVED.
&&
LAT...LON 3730 11856 3736 11849 3726 11849 3720 11852
3725 11858
$$
JGG799
WGUS75 KVEF 302154
FFSVEF
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
254 PM PDT SAT JUL 30 2011
CAC027-302202-
/O.EXP.KVEF.FF.W.0062.000000T0000Z-110730T2200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
INYO CA-
254 PM PDT SAT JUL 30 2011
...THE FLASH FLOOD WARNING WILL EXPIRE AT 300 PM PDT FOR EXTREME
NORTHWESTERN INYO COUNTY...
HEAVY RAIN HAS NOT FALLEN IN THE WARNING AREA FOR AWHILE AND THERE
HAVE BEEN NO REPORTS OF FLOODING. STORMS THAT FORM THROUGHOUT THE
AFTERNOON WILL HAVE THE POTENTIAL TO PRODUCE FLOODING. REMAIN ALERT
TO THIS POSSIBILITY.
LAT...LON 3730 11856 3736 11849 3726 11849 3720 11852
3725 11858
$$
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, 1:52 PM PDT | Areal Flood Advisory | VEF | San Bernardino | 32 min |
| Jul 30, 2:07 PM PDT | Flash Flood Warning | VEF | Inyo | 3 hr |
| 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.