Alert archive / Nevada / Flash Flood Warnings in 2017

Flash Flood Warning 2, NWS Reno, NV

January 10, 2017Douglas County, Nevada

NWS Reno, NV issued this flash flood warning at Jan 10, 2017, 11:50 PM PST for Douglas County, Nevada. It was in force for 195 days. 23 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jan 10, 2017, 11:50 PM PST (07:50 UTC)
Expired
Jul 24, 2017, 9:15 PM PDT
In force
195 days
Issued by
NWS Reno, NV
Area
Storm-based polygon
Flood severity
None

County Douglas County, NV

The radar

The Reno radar (KRGX), 72 km from the middle of the area, began a volume at 07:51 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.

What was reported inside it

TimeReportWhereRemark
Jan 11, 9:55 AM PSTHEAVY RAIN 1.172 Sse Carson City, NVTRAINED WEATHER SPOTTER REPORTED 1.17 INCHES OF RAINFALL SINCE 2PM YESTERDAY.
Feb 7, 7:36 AM PSTHEAVY RAIN 0.821 Ne Carson City, NVTRAINED WEATHER SPOTTER REPORTED 0.82 INCHES OF RAINFALL SINCE MIDNIGHT.
Feb 7, 8:25 AM PSTFLOODCarson City, NVSEVERAL REPORTS OF WATER COVERING ROADS IN CARSON CITY.
Feb 7, 9:59 PM PSTHEAVY RAIN 1.151 Wsw Carson City, NVA TOTAL OF 1.15 INCHES OF PRECIPITATION WAS REPORTED JUST WEST OF CARSON CITY IN THE PAST 24 HOURS AT AN ELEVATION OF 4715 FT.
Feb 8, 7:34 AM PSTHEAVY RAIN 0.321 Ne Carson City, NVTRAINED WEATHER SPOTTER REPORTED 0.32 INCHES OF NEW RAINFALL IN THE LAST 24 HOURS.
Feb 10, 6:13 AM PSTHEAVY RAIN 1.843 Ese Carson City, NVRAIN WAS MEASURED FROM 5PM THROUGH 5AM.
Feb 10, 7:23 AM PSTHEAVY RAIN 1.931 Ne Carson City, NVTRAINED WEATHER SPOTTER REPORTED 1.93 INCHES OF RAINFALL IN THE LAST 24 HOURS.
Feb 10, 8:44 AM PSTHEAVY RAIN 1.146 Nne Minden, NVCOCORAHS OBSERVER REPORTED 1.14 INCHES OF PRECIPITATION IN THE PAST 24 HOURS.
Feb 10, 9:03 AM PSTHEAVY RAIN 0.85Johnson Lane, NVCOOPERATIVE WEATHER OBSERVER REPORTED 0.85 INCHES OF RAINFALL IN THE LAST 24 HOURS.
Feb 10, 11:49 AM PSTFLOOD3 S Carson City, NVUS 395 CLOSED IN BOTH DIRECTIONS IN JACKS VALLEY DUE TO FLOODING.
Feb 10, 11:51 AM PSTHEAVY RAIN 2.052 Sse Carson City, NVTRAINED WEATHER SPOTTER REPORTED 2.05 INCHES OF PRECIPIATION IN THE PAST 24 HOURS.
Feb 16, 9:07 AM PSTHEAVY RAIN 0.82 Sse Carson City, NVA TRAINED WEATHER SPOTTER NEAR CARSON CITY RECORDED A TOTAL OF 0.80 INCHES OF RAIN IN THE PAST 24 HOURS.
Feb 20, 7:20 AM PSTHEAVY RAIN 0.331 Ne Carson City, NVTRAINED WEATHER SPOTTER REPORTED 0.33 INCHES OF RAINFALL OVERNIGHT.
Feb 20, 3:13 PM PSTHEAVY RAIN 12 Sse Carson City, NVTRAINED WEATHER SPOTTER REPORTED 1 INCH OF HEAVY RAIN IN THE LAST 24 HOURS.
Feb 20, 5:12 PM PSTHEAVY RAIN 1.132 S Carson City, NVTRAINED WEATHER SPOTTER REPORTED 1.13 INCHES OF PRECIPITATION IN THE PAST 24 HOURS.
Feb 21, 7:05 AM PSTHEAVY RAIN 1.732 Sse Carson City, NV1.73 INCHES MEASURED IN THE PAST 24 HOURS.
Feb 21, 8:25 AM PSTHEAVY RAIN 1.421 Ne Carson City, NVTRAINED WEATHER SPOTTER REPORTED 1.42 INCHES OF RAINFALL IN THE LAST 24 HOURS.
Mar 22, 7:43 AM PDTHEAVY RAIN 0.51 Ne Carson City, NVTRAINED WEATHER SPOTTER REPORTED 0.50 INCHES OF RAINFALL IN THE LAST 24 HOURS.
May 6, 6:11 PM PDTHEAVY RAIN 0.651 Ne Carson City, NVTOTAL SINCE RAIN BEGAN IN THE AFTERNOON.
May 6, 6:11 PM PDTHEAVY RAIN 0.672 S Carson City, NVTOTAL SO FAR SINCE RAIN BEGAN IN THE AFTERNOON.
May 6, 6:11 PM PDTHEAVY RAIN 0.992 Sse Carson City, NVTOTAL SINCE RAIN BEGAN IN THE AFTERNOON.
May 7, 8:55 AM PDTHEAVY RAIN 0.851 Ne Carson City, NVTRAINED WEATHER SPOTTER REPORTED 0.85 INCHES OF HEAVY RAIN IN THE LAST 24 HOURS.
May 7, 9:29 AM PDTHEAVY RAIN 1.232 Sse Carson City, NVTRAINED WEATHER SPOTTER REPORTED 1.23 INCHES OF HEAVY RAIN IN THE LAST 24 HOURS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Reno, NV (KREV), launched 00:00Z, 7.8 hours before the alert went out and 139 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 2017-01-11Temperature 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 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 2017-01-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 436 square meters per square second.1939587897117136156Sfc1 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
718 m above ground
0-6 km bulk shear
70 kt
0-1 km storm-relative helicity
436 m²/s²
0-3 km storm-relative helicity
646 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

022 
WGUS55 KREV 110750
FFWREV
NVC005-510-111345-
/O.NEW.KREV.FF.W.0002.170111T0750Z-170111T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Reno NV
1150 PM PST TUE JAN 10 2017

The National Weather Service in Reno has issued a

* Flash Flood Warning for...
  Douglas County in western Nevada...
  Carson City in western Nevada...

* Until 545 AM PST

* At 1146 PM PST, emergency management officials in Carson City 
  reported heavy rain and widespread flooding across the city. 
  Additional flooding is also possible in northern parts of Douglas 
  County where low land flooding was already occurring.

* Some locations that will experience flooding include...
  Carson City, Indian Hills, Genoa, Kingsbury, and Stewart.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a life threatening flash flood. Move to higher ground if you
are in a flood prone or low lying area.

Most flood deaths occur in automobiles. Never drive your vehicle into
areas where the water covers the roadway. Flood waters are usually
deeper than they appear. A few inches of fast flowing water is
powerful enough to sweep vehicles off the road.

&&

LAT...LON 3924 11971 3918 11968 3919 11957 3898 11960
      3900 11989 3915 11988

$$

MF
2 follow-up statements
981 
WGUS75 KREV 110936
FFSREV

Flash Flood Statement
National Weather Service Reno NV
136 AM PST WED JAN 11 2017

NVC005-510-111345-
/O.CON.KREV.FF.W.0002.000000T0000Z-170111T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Douglas NV-Carson City NV-
136 AM PST WED JAN 11 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 545 AM PST FOR
DOUGLAS  AND CARSON CITY...

At 133 AM PST, another band of moderate to heavy rain will into the 
Carson City and northern Douglas County by 230 am. Snow levels may 
briefly drop to around 5500 feet with this band, but most areas 
below that will see rain. This additional rain is likely to add to 
any ongoing flooding across Carson City and northern Douglas County. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is a VERY DANGEROUS SITUATION! Runoff will quickly flood low 
lying areas, streets, streams, creeks and rivers. Many roadways will 
be closed due to the heavy rainfall and travel is not recommended.

Most flood deaths occur in automobiles. Never drive your vehicle into
areas where the water covers the roadway. Flood waters are usually
deeper than they appear. A few inches of fast flowing water is
powerful enough to sweep vehicles off the road.

&&

LAT...LON 3924 11971 3918 11968 3919 11957 3898 11960
      3900 11989 3915 11988

$$

MF
879 
WGUS75 KREV 111343
FFSREV

Flash Flood Statement
National Weather Service Reno NV
543 AM PST WED JAN 11 2017

NVC005-510-111351-
/O.EXP.KREV.FF.W.0002.000000T0000Z-170111T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Douglas NV-Carson City NV-
543 AM PST WED JAN 11 2017

...THE FLASH FLOOD WARNING FOR DOUGLAS  AND CARSON CITY WILL EXPIRE
AT 545 AM PST...

The heavy rain has ended so the warning will expire. Minor flooding 
will continue across Carson City and Douglas County through this 
morning and a Flood Advisory continues through 1030 AM. Please 
continue to heed any remaining road closures.

LAT...LON 3924 11971 3918 11968 3919 11957 3898 11960
      3900 11989 3915 11988

$$

JW

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 10, 8:45 PM PSTAreal Flood WarningREVLyon24 hr
Jan 10, 10:03 PM PSTAreal Flood WarningREVWashoe6 hr
Jan 10, 10:38 PM PSTFlash Flood WarningREVWashoe195 days
Jan 11, 12:01 AM PSTRiver Flood WarningREVStorey, Washoe22 hr
Jan 11, 1:29 AM PSTFlash Flood WarningREVStorey, Washoe4 hr
Jan 11, 2:09 PM PSTWinter Weather AdvisoryREVChurchill, Douglas, Lyon, Mineral, Pershing, Storey and 1 more32 hr

Nearby

Flash Flood Warnings in Nevada, 2017Every flash flood warning in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.