Alert archive / California / Red Flag Warnings in 2016

Red Flag Warning 22, NWS Reno, NV

September 29, 2016Modoc County, California; Washoe County, Nevada

NWS Reno, NV issued this red flag warning at Sep 29, 2016, 11:17 AM PDT for Modoc County, California; Washoe County, Nevada. It took effect at Sep 30, 2016, 11:00 AM PDT. It was in force for 9 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
Sep 29, 2016, 11:17 AM PDT (18:17 UTC)
In effect from
Sep 30, 2016, 11:00 AM PDT
Expired
Sep 30, 2016, 8:00 PM PDT
In force
9 hr
Issued by
NWS Reno, NV

Counties Modoc County, CA, Washoe County, NV

The radar

The Reno radar (KRGX), 165 km from the middle of the area, began a volume at 18:18 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, 6.3 hours before the alert went out and 242 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 2016-09-29Temperature 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 2016-09-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -68 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
2699 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-68 m²/s²
0-3 km storm-relative helicity
-9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

975 
WWUS85 KREV 291817
RFWREV

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE RENO NV
1117 AM PDT THU SEP 29 2016

NVZ450-453-301300-
/O.UPG.KREV.FW.A.0015.160930T1800Z-161001T0600Z/
/O.NEW.KREV.FW.W.0022.160930T1800Z-161001T0300Z/
WESTERN NEVADA SIERRA FRONT-WEST CENTRAL NEVADA BASIN AND RANGE-
1117 AM PDT THU SEP 29 2016

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM PDT FRIDAY FOR
GUSTY WINDS AND LOW HUMIDITY FOR THE SIERRA FRONT AND THE WESTERN
NEVADA BASIN AND RANGE...

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A RED FLAG
WARNING FOR GUSTY WINDS AND LOW HUMIDITY, WHICH IS IN EFFECT FROM
11 AM TO 8 PM PDT FRIDAY. THE FIRE WEATHER WATCH IS NO LONGER IN
EFFECT.

* AFFECTED AREA...FIRE ZONE 450 WESTERN NEVADA SIERRA FRONT AND 
  FIRE ZONE 453 WEST CENTRAL NEVADA BASIN AND RANGE.

* WINDS...SOUTHWEST WINDS 15 TO 20 MPH WITH GUSTS UP TO 40 MPH.

* HUMIDITY...13 TO 20 PERCENT.

* IMPACTS...THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY CAN 
  CAUSE 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.

&&

$$

CAZ272-NVZ458-301300-
/O.CON.KREV.FW.A.0015.160930T1800Z-161001T0600Z/
GREATER LAKE TAHOE AREA-NORTHERN WASHOE COUNTY-
1117 AM PDT THU SEP 29 2016

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM FRIDAY MORNING
THROUGH FRIDAY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR THE
LAKE TAHOE BASIN AND EXTREME NORTHWEST NEVADA...

* AFFECTED AREA...FIRE ZONE 272 GREATER LAKE TAHOE AREA AND FIRE 
  ZONE 458 NORTHERN WASHOE COUNTY.

* WINDS...SOUTHWEST WINDS 15 TO 20 MPH WITH GUSTS UP TO 40 MPH.

* HUMIDITY...15 TO 20 PERCENT IN WESTERN NEVADA AND 20 TO 25 
  PERCENT IN THE SIERRA.

* IMPACTS...THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY CAN 
  CAUSE 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
3 follow-up statements
911 
WWUS85 KREV 301230
RFWREV

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE RENO NV
530 AM PDT FRI SEP 30 2016

CAZ272-301330-
/O.CAN.KREV.FW.A.0015.160930T1800Z-161001T0600Z/
GREATER LAKE TAHOE AREA-
530 AM PDT FRI SEP 30 2016

...FIRE WEATHER WATCH IS CANCELLED FOR GUSTY WINDS AND LOW
HUMIDITY FOR THE LAKE TAHOE BASIN AND EXTREME NORTHWEST NEVADA...

THE NATIONAL WEATHER SERVICE IN RENO HAS CANCELLED THIS FIRE
WEATHER WATCH.

GUSTY WINDS ARE LIKELY THIS AFTERNOON AND EVENING...BUT HUMIDITY
VALUES ARE NOT LIKELY TO DROP MUCH BELOW 25 PERCENT. THERE MAY BE
SOME VERY LOCALIZED CRITICAL CONDITIONS DURING THE LATE AFTERNOON.

$$

NVZ458-010000-
/O.UPG.KREV.FW.A.0015.160930T1800Z-161001T0600Z/
/O.EXA.KREV.FW.W.0022.160930T1800Z-161001T0300Z/
NORTHERN WASHOE COUNTY-
530 AM PDT FRI SEP 30 2016

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM PDT
THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR NORTHERN WASHOE
COUNTY...

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A RED FLAG
WARNING FOR GUSTY WINDS AND LOW HUMIDITY, WHICH IS IN EFFECT FROM
11 AM THIS MORNING TO 8 PM PDT THIS EVENING. THIS REPLACES THE FIRE
WEATHER WATCH.

* AFFECTED AREA...FIRE ZONE 458 NORTHERN WASHOE COUNTY.

* WINDS...SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS UP TO 45 MPH.

* HUMIDITY...11 TO 19 PERCENT.

* IMPACTS...THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY CAN 
  CAUSE 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.

&&

$$

CAZ270-010000-
/O.EXA.KREV.FW.W.0022.160930T1800Z-161001T0300Z/
SURPRISE VALLEY CALIFORNIA-
530 AM PDT FRI SEP 30 2016

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM PDT
THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR THE SURPRISE
VALLEY...

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A RED FLAG
WARNING FOR GUSTY WINDS AND LOW HUMIDITY, WHICH IS IN EFFECT FROM
11 AM THIS MORNING TO 8 PM PDT THIS EVENING.

* AFFECTED AREA...FIRE ZONE 270 SURPRISE VALLEY CALIFORNIA.

* WINDS...SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS UP TO 45 MPH.

* HUMIDITY...10 TO 18 PERCENT.

* IMPACTS...THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY CAN 
  CAUSE 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.

&&

$$

NVZ450-453-010000-
/O.CON.KREV.FW.W.0022.160930T1800Z-161001T0300Z/
WESTERN NEVADA SIERRA FRONT-WEST CENTRAL NEVADA BASIN AND RANGE-
530 AM PDT FRI SEP 30 2016

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
8 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR THE
SIERRA FRONT AND THE WESTERN NEVADA BASIN AND RANGE...

* AFFECTED AREA...FIRE ZONE 450 WESTERN NEVADA SIERRA FRONT AND 
  FIRE ZONE 453 WEST CENTRAL NEVADA BASIN AND RANGE.

* WINDS...SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS UP TO 40 MPH.

* HUMIDITY..8 TO 16 PERCENT.

* IMPACTS...THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY CAN 
  CAUSE 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
019 
WWUS85 KREV 302213
RFWREV

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE RENO NV
313 PM PDT FRI SEP 30 2016

NVZ450-453-010300-
/O.CON.KREV.FW.W.0022.000000T0000Z-161001T0300Z/
WESTERN NEVADA SIERRA FRONT-WEST CENTRAL NEVADA BASIN AND RANGE-
313 PM PDT FRI SEP 30 2016

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING
FOR GUSTY WINDS AND LOW HUMIDITY FOR THE SIERRA FRONT AND THE
WESTERN NEVADA BASIN AND RANGE...

* AFFECTED AREA...FIRE ZONE 450 WESTERN NEVADA SIERRA FRONT AND 
  FIRE ZONE 453 WEST CENTRAL NEVADA BASIN AND RANGE.

* WINDS...SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS UP TO 40 MPH.

* HUMIDITY..8 TO 16 PERCENT.

* IMPACTS...THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY CAN 
  CAUSE 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.

&&

$$

CAZ270-NVZ458-010300-
/O.CON.KREV.FW.W.0022.000000T0000Z-161001T0300Z/
SURPRISE VALLEY CALIFORNIA-NORTHERN WASHOE COUNTY-
313 PM PDT FRI SEP 30 2016

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING
FOR GUSTY WINDS AND LOW HUMIDITY FOR NORTHERN WASHOE COUNTY...

* AFFECTED AREA...FIRE ZONE 270 SURPRISE VALLEY CALIFORNIA AND 
  FIRE ZONE 458 NORTHERN WASHOE COUNTY.

* WINDS...SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS UP TO 45 MPH.

* HUMIDITY...11 TO 19 PERCENT.

* IMPACTS...THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY CAN 
  CAUSE 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
638 
WWUS85 KREV 010246
RFWREV

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE RENO NV
746 PM PDT FRI SEP 30 2016

NVZ450-453-010400-
/O.EXP.KREV.FW.W.0022.000000T0000Z-161001T0300Z/
WESTERN NEVADA SIERRA FRONT-WEST CENTRAL NEVADA BASIN AND RANGE-
746 PM PDT FRI SEP 30 2016

...RED FLAG WARNING WILL EXPIRE AT 8 PM PDT THIS EVENING FOR
GUSTY WINDS AND LOW HUMIDITY FOR THE SIERRA FRONT AND THE WESTERN
NEVADA BASIN AND RANGE...

WINDS ARE DECREASING THIS EVENING ALONG WITH INCREASING HUMIDITY
VALUES. THEREFORE THE RED FLAG WARNING WILL BE ALLOW TO EXPIRE ON
TIME.

$$

CAZ270-NVZ458-010400-
/O.EXP.KREV.FW.W.0022.000000T0000Z-161001T0300Z/
SURPRISE VALLEY CALIFORNIA-NORTHERN WASHOE COUNTY-
746 PM PDT FRI SEP 30 2016

...RED FLAG WARNING WILL EXPIRE AT 8 PM PDT THIS EVENING FOR
GUSTY WINDS AND LOW HUMIDITY FOR NORTHERN WASHOE COUNTY...

WINDS ARE DECREASING THIS EVENING ALONG WITH INCREASING HUMIDITY
VALUES. THEREFORE THE RED FLAG WARNING WILL BE ALLOW TO EXPIRE ON
TIME.

$$

HTTP://WEATHER.GOV/RENO

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 29, 2:48 PM PDTLake Wind AdvisoryREVAlpine, El Dorado, Nevada, Placer44 hr

Nearby

Red Flag Warnings in California, 2016Red Flag Warnings in Nevada, 2016Every red flag warning in 2016

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.