Alert archive / Nevada / Red Flag Warnings in 2017

Red Flag Warning 6, NWS Reno, NV

July 4, 2017Washoe County, Nevada

NWS Reno, NV issued this red flag warning at Jul 4, 2017, 7:35 AM PDT for Washoe County, Nevada. It took effect at Jul 5, 2017, 1:00 PM PDT. It was in force for 16 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 4, 2017, 7:35 AM PDT (14:35 UTC)
In effect from
Jul 5, 2017, 1:00 PM PDT
Expired
Jul 6, 2017, 5:00 AM PDT
In force
16 hr
Issued by
NWS Reno, NV

County Washoe County, NV

The radar

The Reno radar (KRGX), 103 km from the middle of the area, began a volume at 14:33 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, 2.6 hours before the alert went out and 174 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 2017-07-04Temperature 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 2017-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.1939Sfc1 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
2318 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
140 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

113 
WWUS85 KREV 041435
RFWREV

URGENT - FIRE WEATHER MESSAGE
National Weather Service Reno NV
735 AM PDT Tue Jul 4 2017

CAZ273-NVZ450-453-458-459-051400-
/O.UPG.KREV.FW.A.0004.170705T2000Z-170706T0600Z/
/O.NEW.KREV.FW.W.0006.170705T2000Z-170706T1200Z/
Mono and Eastern Alpine Counties-Western Nevada Sierra Front-
West Central Nevada Basin and Range-Northern Washoe County-
Mineral and Southern Lyon Counties-
735 AM PDT Tue Jul 4 2017

...RED FLAG WARNING IN EFFECT FROM 1 PM WEDNESDAY TO 5 AM PDT
THURSDAY FOR THUNDERSTORMS AND STRONG OUTFLOW WINDS FOR MOST OF 
THE SIERRA AND WESTERN NEVADA...

The National Weather Service in Reno has issued a Red Flag
Warning for thunderstorms and strong outflow winds, which is in
effect from 1 PM Wednesday to 5 AM PDT Thursday. The Fire Weather
Watch is no longer in effect.

* AFFECTED AREA...Fire Zone 273 Mono and Eastern Alpine Counties,
   Fire Zone 450 Western Nevada Sierra Front, Fire Zone 453 West 
  Central Nevada Basin and Range, Fire Zone 458 Northern Washoe 
  County and Fire Zone 459 Mineral and Southern Lyon Counties.

* THUNDERSTORMS...Thunderstorms with minimal rainfall and 
  abundant lightning.

* OUTFLOW WINDS...Strong and erratic outflow winds up to 60 mph, 
  primarily from the southwest to southeast.

* IMPACTS...Lightning can create new fire starts and may combine 
  with strong outflow winds to cause a fire to rapidly grow in 
  size and intensity before first responders can contain them.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outdoor activities that can cause a spark near dry
vegetation, such as yard work, target shooting, or campfires.
Follow local fire restrictions. Check weather.gov/reno for
updates and livingwithfire.info for preparedness tips.

&&

$$

http://weather.gov/reno
2 follow-up statements
590 
WWUS85 KREV 051257
RFWREV

URGENT - FIRE WEATHER MESSAGE
National Weather Service Reno NV
557 AM PDT Wed Jul 5 2017

CAZ273-NVZ450-453-458-459-060100-
/O.CON.KREV.FW.W.0006.170705T2000Z-170706T1200Z/
Mono and Eastern Alpine Counties-Western Nevada Sierra Front-
West Central Nevada Basin and Range-Northern Washoe County-
Mineral and Southern Lyon Counties-
557 AM PDT Wed Jul 5 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO
5 AM PDT THURSDAY FOR THUNDERSTORMS AND STRONG OUTFLOW WINDS FOR
MOST OF THE SIERRA AND WESTERN NEVADA...

* AFFECTED AREA...Fire Zone 273 Mono and Eastern Alpine Counties,
   Fire Zone 450 Western Nevada Sierra Front, Fire Zone 453 West 
  Central Nevada Basin and Range, Fire Zone 458 Northern Washoe 
  County and Fire Zone 459 Mineral and Southern Lyon Counties.

* THUNDERSTORMS...Isolated to low end scattered thunderstorms. The
  thunderstorms will produce little rainfall. The peak time for 
  storms will be between 4 pm and 10 pm.

* OUTFLOW WINDS...Strong and erratic outflow winds up to 60 mph, 
  primarily from the southwest to southeast.

* IMPACTS...Lightning can create new fire starts and may combine 
  with strong outflow winds to cause a fire to rapidly grow in 
  size and intensity before first responders can contain them.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outdoor activities that can cause a spark near dry
vegetation, such as yard work, target shooting, or campfires.
Follow local fire restrictions. Check weather.gov/reno for
updates and livingwithfire.info for preparedness tips.

&&

$$

http://weather.gov/reno
301 
WWUS85 KREV 052123
RFWREV

URGENT - FIRE WEATHER MESSAGE
National Weather Service Reno NV
223 PM PDT Wed Jul 5 2017

CAZ273-NVZ450-453-458-459-061200-
/O.CON.KREV.FW.W.0006.000000T0000Z-170706T1200Z/
Mono and Eastern Alpine Counties-Western Nevada Sierra Front-
West Central Nevada Basin and Range-Northern Washoe County-
Mineral and Southern Lyon Counties-
223 PM PDT Wed Jul 5 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT THURSDAY FOR
THUNDERSTORMS AND STRONG OUTFLOW WINDS FOR MOST OF THE SIERRA AND
WESTERN NEVADA...

* AFFECTED AREA...Fire Zone 273 Mono and Eastern Alpine Counties,
   Fire Zone 450 Western Nevada Sierra Front, Fire Zone 453 West 
  Central Nevada Basin and Range, Fire Zone 458 Northern Washoe 
  County and Fire Zone 459 Mineral and Southern Lyon Counties.

* THUNDERSTORMS...Isolated to low end scattered thunderstorms. 
  The thunderstorms will produce little rainfall. The peak time 
  for storms will be between 4 pm and 10 pm.

* OUTFLOW WINDS...Strong and erratic outflow winds up to 60 mph, 
  primarily from the southwest to southeast.

* IMPACTS...Lightning can create new fire starts and may combine 
  with strong outflow winds to cause a fire to rapidly grow in 
  size and intensity before first responders can contain them.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outdoor activities that can cause a spark near dry
vegetation, such as yard work, target shooting, or campfires.
Follow local fire restrictions. Check weather.gov/reno for
updates and livingwithfire.info for preparedness tips.

&&

$$

http://weather.gov/reno

Nearby

Red Flag Warnings in Nevada, 2017Red Flag Warnings in California, 2017Every red flag 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.