Alert archive / Nevada / Flash Flood Warnings in 2012

Flash Flood Warning 1, NWS Reno, NV

July 13, 2012Mineral County, Nevada

NWS Reno, NV issued this flash flood warning at Jul 13, 2012, 1:58 PM PDT for Mineral 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
Jul 13, 2012, 1:58 PM PDT (20:58 UTC)
Expired
Jul 13, 2012, 4:00 PM PDT
In force
2 hr
Issued by
NWS Reno, NV
Area
Storm-based polygon
Flood severity
None

County Mineral County, NV

The radar

The Reno radar (KRGX), 173 km from the middle of the area, began a volume at 20:58 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, 9.0 hours before the alert went out and 129 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 12:00Z on 2012-07-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 12:00Z on 2012-07-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3157 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
33 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.

765 
WGUS55 KREV 132058
FFWREV
NVC021-132300-
/O.NEW.KREV.FF.W.0001.120713T2058Z-120713T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RENO NV
158 PM PDT FRI JUL 13 2012

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A

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

* UNTIL 400 PM PDT

* AT 145 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  FLASH FLOODING FROM A THUNDERSTORM NEAR GARFIELD FLAT OR 10 MILES  
  WEST OF MINA.

DOPPLER RADAR HAS ESTIMATED 1 TO 2 INCHES OF RAIN HAS FALLEN NEAR 
GARFIELD FLAT BETWEEN THE GARFIELD HILLS AND EXCELSIOR MOUNTAINS 
OVER THE LAST 90 MINUTES. THIS STORM IS NEARLY STATIONARY AND WILL 
CONTINUE TO PRODUCE HEAVY RAINFALL OVER THE WARNED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS RANCHLAND ALONG THE 
BANKS OF CREEKS AND STREAMS.

LAT...LON 3848 11856 3851 11826 3834 11820 3830 11854

$$

MYRICK
2 follow-up statements
950 
WGUS75 KREV 132159
FFSREV

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RENO NV
259 PM PDT FRI JUL 13 2012

NVC021-132300-
/O.CON.KREV.FF.W.0001.000000T0000Z-120713T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MINERAL NV-
259 PM PDT FRI JUL 13 2012

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 400 PM PDT FOR
CENTRAL MINERAL COUNTY...

AT 250 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A THUNDERSTORM PRODUCING FLASH FLOODING NEAR GARFIELD FLAT 
OR 10 MILES WEST OF MINA.

BASED ON DOPPLER RADAR ESTIMATES...1 TO 3 INCHES OF RAIN HAS FALLEN 
NEAR GARFIELD FLAT BETWEEN THE GARFIELD HILLS AND EXCELSIOR 
MOUNTAINS TO THE WEST OF MINA. THE STORM THAT PRODUCED THIS HEAVY 
RAINFALL HAS WEAKENED, BUT THE THREAT OF FLASH FLOODING STILL EXISTS.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS RANCHLAND ALONG THE 
BANKS OF CREEKS AND STREAMS.

LAT...LON 3848 11856 3851 11826 3834 11820 3830 11854

$$

MYRICK
180 
WGUS75 KREV 132253
FFSREV

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE RENO NV
353 PM PDT FRI JUL 13 2012

NVC021-132301-
/O.EXP.KREV.FF.W.0001.000000T0000Z-120713T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MINERAL NV-
353 PM PDT FRI JUL 13 2012

...THE FLASH FLOOD WARNING WILL EXPIRE AT 400 PM PDT FOR CENTRAL
MINERAL COUNTY...

THE STRONGER STORMS THAT EARLIER PROMPTED THE FLASH FLOOD WARNING 
HAVE WEAKENED...WITH A DIMINISHING FLOOD THREAT. REMEMBER THAT MINOR 
FLOODING OF LOW SPOTS MAY CONTINUE FOR SEVERAL HOURS. SCATTERED 
SHOWERS AND THUNDERSTORMS WILL CONTINUE ACROSS MINERAL COUNTY 
THROUGH EARLY THIS EVENING.

LAT...LON 3848 11856 3851 11826 3834 11820 3830 11854

$$

MYRICK

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 13, 2:21 PM PDTSpecial Weather StatementREVMineral39 min
Jul 13, 2:26 PM PDTSpecial Weather StatementREVPershing34 min
Jul 13, 3:02 PM PDTSpecial Weather StatementREVPershing58 min
Jul 13, 4:10 PM PDTSpecial Weather StatementREVChurchill65 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.