Alert archive / Nevada / Flash Flood Warnings in 2007

Flash Flood Warning 8, NWS Reno, NV

July 11, 2007Mineral County, Nevada

NWS Reno, NV issued this flash flood warning at Jul 11, 2007, 6:51 PM PDT for Mineral County, Nevada. It took effect at Jul 11, 2007, 6:58 PM PDT. 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 counties it named.

The facts

Issued
Jul 11, 2007, 6:51 PM PDT (01:51 UTC)
In effect from
Jul 11, 2007, 6:58 PM PDT
Expired
Jul 11, 2007, 9:00 PM PDT
In force
2 hr
Issued by
NWS Reno, NV
Area
Whole counties

County Mineral County, NV

The radar

The Reno radar (KRGX), 162 km from the middle of the area, began a volume at 01:53 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 00:00Z, 1.9 hours before the alert went out and 116 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, Reno, NV at 00:00Z on 2007-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 27 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Reno, NV at 00:00Z on 2007-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 square meters per square second.19395878Sfc1 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
27 J/kg
Mixed-layer CIN
-135 J/kg
Mixed-layer LCL
3123 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
80 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.

000 
WGUS55 KREV 120158
FFWREV
NVC021-120400-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RENO NV
651 PM PDT WED JUL 11 2007

THE NATIONAL WEATHER SERVICE IN RENO HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  SOUTHWESTERN MINERAL COUNTY IN WESTERN NEVADA...

* UNTIL 900 PM PDT

* AT 645 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A THUNDERSTORM REMAINS OVER HIGHWAY 359 BETWEEN THE CALIFORNIA 
  STATE LINE AND ANCHORITE PASS.

* THE STORM PRODUCING FLASH FLOODING WILL REMAIN STATIONARY UNTIL 
  IT DISSIPATES BY 8 PM.

NATIONAL WEATHER SERVICE RADAR ESTIMATES BETWEEN 2 AND 4 INCHES OF 
RAIN HAS FALLEN WITH THIS STORM SINCE 530 PM.  THIS AMOUNT OF 
RAINFALL WILL CAUSE LARGE ROCK AND MUD SLIDES ALONG HIGHWAY 359 AND 
FLASH FLOODING OF SMALL CREEKS AND STREAMS.

IF YOU PLAN TO TRAVEL ON HIGHWAY 359 BETWEEN HAWTHORNE AND THE 
CALIFORNIA STATELINE...USE EXTREME CAUTION.  THE ROAD MAY BE COVERED 
BY WATER...ROCK SLIDES...OR MAY BE WASHED OUT.  DO NOT ATTEMPT TO 
DRIVE THROUGH FLOODED AREAS.

IF YOU SEE SIGNS OF FLOODING ALONG HIGHWAY 359 REPORT THE FLOODING 
IMMEDIATELY TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY 
YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN RENO.

LAT...LON 3820 11884 3809 11869 3820 11852 3832 11869

$$

BRONG
1 follow-up statement
000 
WGUS75 KREV 120357
FFSREV

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RENO NV
857 PM PDT WED JUL 11 2007

NVC021-120403-
MINERAL NV-
857 PM PDT WED JUL 11 2007

...THE FLASH FLOOD WARNING WILL EXPIRE AT 900 PM PDT FOR SOUTHWESTERN
MINERAL COUNTY...

SHOWERS AND THUNDERSTORMS HAVE ENDED OVER THE WARNING AREA. USE 
CAUTION IF TRAVELLING ALONG HIGHWAY 359 IN MINERAL COUNTY TONIGHT AS 
FLASH FLOODING MAY HAVE PRODUCED ROCK AND MUD SLIDES...OR CAUSED 
OTHER DAMAGE TO THE ROADWAY. DO NOT ATTEMP TO DRIVE THROUGH FLOODED 
AREAS.

LAT...LON 3820 11884 3809 11869 3820 11852 3832 11869

$$

RC

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 5:12 PM PDTFlash Flood WarningREVDouglas93 min
Jul 11, 5:37 PM PDTFlash Flood WarningREVMineral83 min

Nearby

Flash Flood Warnings in Nevada, 2007Every flash flood warning in 2007

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.