Alert archive / California / Red Flag Warnings in 2016

Red Flag Warning 16, NWS Reno, NV

August 30, 2016Lassen County, Modoc County, California; Washoe County, Nevada

NWS Reno, NV issued this red flag warning at Aug 30, 2016, 3:40 AM PDT for Lassen County, Modoc County, California; Washoe County, Nevada. It took effect at Aug 30, 2016, 2:00 PM PDT. It was in force for 6 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
Aug 30, 2016, 3:40 AM PDT (10:40 UTC)
In effect from
Aug 30, 2016, 2:00 PM PDT
Expired
Aug 30, 2016, 8:00 PM PDT
In force
6 hr
Issued by
NWS Reno, NV

Counties Lassen County, CA, Modoc County, CA, Washoe County, NV

The radar

The Reno radar (KRGX), 154 km from the middle of the area, began a volume at 10:42 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, 10.7 hours before the alert went out and 239 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 2016-08-30Temperature 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 00:00Z on 2016-08-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 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
4486 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
0 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

182 
WWUS85 KREV 301040 CCA
RFWREV

URGENT - FIRE WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE RENO NV
340 AM PDT TUE AUG 30 2016

NVZ450-302300-
/O.CAN.KREV.FW.A.0010.160830T2000Z-160831T0400Z/
/O.COR.KREV.FW.A.0011.160831T2000Z-160901T0400Z/
/O.COR.KREV.FW.A.0012.160901T1800Z-160902T0400Z/
WESTERN NEVADA SIERRA FRONT-
340 AM PDT TUE AUG 30 2016

...FIRE WEATHER WATCH REMAINS IN EFFECT EACH AFTERNOON AND EVENING
WEDNESDAY AND THURSDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR THE
WESTERN NEVADA SIERRA FRONT...

THE NATIONAL WEATHER SERVICE HAS CANCELLED THE FIRE WEATHER WATCH
FOR TODAY....BUT WATCHES REMAIN IN EFFECT FOR BOTH WEDNESDAY AND
THURSDAY AFTERNOON AND EVENING.

* AFFECTED AREA...FIRE ZONE 450 WESTERN NEVADA SIERRA FRONT.

* WINDS...FOR TODAY: SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS 25 TO
  30 MPH. A FEW WIND PRONE AREAS COULD GUST TO GREATER THAN 30 MPH
  TODAY AND PRODUCE LOCALLY CRITICAL CONDITIONS...BUT THESE WILL
  BE VERY LOCALIZED. FOR WEDNESDAY AFTERNOON AND EVENING:
  SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS AROUND 30 MPH. WIND
  PRONE SPOTS COULD HIT 35 MPH. FOR THURSDAY AFTERNOON AND
  EVENING: SOUTHWEST WINDS 15 TO 20 MPH WITH GUSTS TO 35 MPH. WIND
  PRONE AREAS GUSTING TO 40 MPH.

* HUMIDITY...AFTERNOON HUMIDITY WILL BOTTOM OUT AT 8 TO 15%.

* 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.

&&

$$

CAZ270-278-NVZ458-302300-
/O.UPG.KREV.FW.A.0010.160830T2000Z-160831T0400Z/
/O.NEW.KREV.FW.W.0016.160830T2100Z-160831T0300Z/
/O.CON.KREV.FW.A.0011.160831T2000Z-160901T0400Z/
/O.CON.KREV.FW.A.0012.160901T1800Z-160902T0400Z/
SURPRISE VALLEY CALIFORNIA-EASTERN LASSEN COUNTY-
NORTHERN WASHOE COUNTY-
340 AM PDT TUE AUG 30 2016

...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 8 PM
PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FAR
NORTHEAST CALIFORNIA AND FAR NORTHWEST NEVADA...
...FIRE WEATHER WATCH REMAINS IN EFFECT EACH AFTERNOON AND EVENING
WEDNESDAY AND THURSDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FAR
NORTHEAST CALIFORNIA AND FAR NORTHWEST NEVADA...

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A RED FLAG
WARNING FOR GUSTY WINDS AND LOW HUMIDITY, WHICH IS IN EFFECT FROM
2 PM THIS AFTERNOON TO 8 PM PDT THIS EVENING. FIRE WEATHER WATCHES
REMAIN IN EFFECT FOR BOTH WEDNESDAY AND THURSDAY AFTERNOON AND
EVENING.

* AFFECTED AREA...FIRE ZONE 270 SURPRISE VALLEY CALIFORNIA, FIRE 
  ZONE 278 EASTERN LASSEN COUNTY AND FIRE ZONE 458 NORTHERN 
  WASHOE COUNTY.

* WINDS...FOR TODAY: SOUTHWEST 10 TO 20 MPH WITH GUSTS TO 35 MPH.
  FOR WEDNESDAY AFTERNOON AND EVENING: SOUTHWEST WINDS 10 TO 20
  MPH WITH GUSTS AROUND 30 MPH. WIND PRONE SPOTS COULD HIT 35 MPH.
  FOR THURSDAY AFTERNOON AND EVENING: SOUTHWEST WINDS 15 TO 25
  MPH WITH GUSTS TO 35 MPH. WIND PRONE AREAS GUSTING TO 40 MPH.

* HUMIDITY...AFTERNOON HUMIDITY WILL BOTTOM OUT AT 7 TO 15%.

* 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
2 follow-up statements
468 
WWUS85 KREV 302131
RFWREV

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE RENO NV
231 PM PDT TUE AUG 30 2016

CAZ270-278-NVZ458-311400-
/O.CON.KREV.FW.W.0016.000000T0000Z-160831T0300Z/
/O.CON.KREV.FW.A.0011.160831T2000Z-160901T0400Z/
/O.CON.KREV.FW.A.0012.160901T1800Z-160902T0400Z/
SURPRISE VALLEY CALIFORNIA-EASTERN LASSEN COUNTY-
NORTHERN WASHOE COUNTY-
231 PM PDT TUE AUG 30 2016

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING
FOR GUSTY WINDS AND LOW HUMIDITY FOR FAR NORTHEAST CALIFORNIA AND
FAR NORTHWEST NEVADA...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON
THROUGH WEDNESDAY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR
FAR NORTHEAST CALIFORNIA AND FAR NORTHWEST NEVADA...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY MORNING
THROUGH THURSDAY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FAR
NORTHEAST CALIFORNIA AND FAR NORTHWEST NEVADA...

* AFFECTED AREA...FIRE ZONE 270 SURPRISE VALLEY CALIFORNIA, FIRE 
  ZONE 278 EASTERN LASSEN COUNTY AND FIRE ZONE 458 NORTHERN 
  WASHOE COUNTY.

* WINDS...FOR THIS AFTERNOON AND EVENING: SOUTHWEST 10 TO 20 MPH
  WITH GUSTS UP TO 35 MPH. FOR WEDNESDAY AFTERNOON AND EVENING:
  SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS AROUND 30 MPH. WIND
  PRONE SPOTS COULD HIT 35 MPH. FOR THURSDAY AFTERNOON AND
  EVENING: SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 35 MPH. WIND
  PRONE AREAS GUSTING TO 40 MPH.

* HUMIDITY...AFTERNOON HUMIDITY WILL BOTTOM OUT AT 7 TO 15%.

* 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.

&&

$$

NVZ450-311400-
/O.CON.KREV.FW.A.0011.160831T2000Z-160901T0400Z/
/O.CON.KREV.FW.A.0012.160901T1800Z-160902T0400Z/
WESTERN NEVADA SIERRA FRONT-
231 PM PDT TUE AUG 30 2016

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON
THROUGH WEDNESDAY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR
THE WESTERN NEVADA SIERRA FRONT...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY MORNING
THROUGH THURSDAY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR THE
WESTERN NEVADA SIERRA FRONT...

* AFFECTED AREA...FIRE ZONE 450 WESTERN NEVADA SIERRA FRONT.

* WINDS...FOR THIS AFTERNOON AND EVENING: SOUTHWEST WINDS 10 TO 15
  MPH WITH GUSTS 25 TO 30 MPH. EXPECT LOCALIZED CRITICAL FIRE
  WEATHER CONDITIONS. FOR WEDNESDAY AFTERNOON AND EVENING:
  SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS AROUND 30 MPH. WIND
  PRONE SPOTS COULD HIT 35 MPH. FOR THURSDAY AFTERNOON AND
  EVENING: SOUTHWEST WINDS 15 TO 20 MPH WITH GUSTS TO 35 MPH. WIND
  PRONE AREAS GUSTING TO 40 MPH.

* HUMIDITY...AFTERNOON HUMIDITY WILL BOTTOM OUT AT 8 TO 15%.

* 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
473 
WWUS85 KREV 310258
RFWREV

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE RENO NV
758 PM PDT TUE AUG 30 2016

CAZ270-278-NVZ458-311500-
/O.EXP.KREV.FW.W.0016.000000T0000Z-160831T0300Z/
/O.CON.KREV.FW.A.0011.160831T2000Z-160901T0400Z/
/O.CON.KREV.FW.A.0012.160901T1800Z-160902T0400Z/
SURPRISE VALLEY CALIFORNIA-EASTERN LASSEN COUNTY-
NORTHERN WASHOE COUNTY-
758 PM PDT TUE AUG 30 2016

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON
THROUGH WEDNESDAY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR
FAR NORTHEAST CALIFORNIA AND FAR NORTHWEST NEVADA...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY MORNING
THROUGH THURSDAY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FAR
NORTHEAST CALIFORNIA AND FAR NORTHWEST NEVADA...
...RED FLAG WARNING WILL EXPIRE AT 8 PM PDT THIS EVENING FOR
GUSTY WINDS AND LOW HUMIDITY FOR FAR NORTHEAST CALIFORNIA AND FAR
NORTHWEST NEVADA...

* AFFECTED AREA...FIRE ZONE 270 SURPRISE VALLEY CALIFORNIA, FIRE 
  ZONE 278 EASTERN LASSEN COUNTY AND FIRE ZONE 458 NORTHERN 
  WASHOE COUNTY.

* WINDS...FOR WEDNESDAY AND THURSDAY AFTERNOON AND EVENING:
  SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS 30 TO 35 MPH. 

* HUMIDITY...AFTERNOON HUMIDITY WILL BOTTOM OUT AT 7 TO 15%.

* 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.

&&

$$

NVZ450-311500-
/O.CON.KREV.FW.A.0011.160831T2000Z-160901T0400Z/
/O.CON.KREV.FW.A.0012.160901T1800Z-160902T0400Z/
WESTERN NEVADA SIERRA FRONT-
758 PM PDT TUE AUG 30 2016

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON
THROUGH WEDNESDAY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR
THE WESTERN NEVADA SIERRA FRONT...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY MORNING
THROUGH THURSDAY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR THE
WESTERN NEVADA SIERRA FRONT...

* AFFECTED AREA...FIRE ZONE 450 WESTERN NEVADA SIERRA FRONT.

* WINDS...FOR WEDNESDAY AND THURSDAY AFTERNOON AND EVENING:
  SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS 30 TO 35 MPH. 

* HUMIDITY...AFTERNOON HUMIDITY WILL BOTTOM OUT AT 8 TO 15%.

* 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

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.