Alert archive / Arizona / Winter Storm Warnings in 2019

Winter Storm Warning 2, NWS Flagstaff, AZ

February 4, 2019Coconino County, Navajo County, Arizona

NWS Flagstaff, AZ issued this winter storm warning at Feb 4, 2019, 1:37 PM MST for Coconino County, Navajo County, Arizona. It took effect at Feb 4, 2019, 11:00 PM MST. It was in force for 33 hr. 15 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Feb 4, 2019, 1:37 PM MST (20:37 UTC)
In effect from
Feb 4, 2019, 11:00 PM MST
Expired
Feb 6, 2019, 8:00 AM MST
In force
33 hr
Issued by
NWS Flagstaff, AZ

Counties Coconino County, AZ, Navajo County, AZ

The radar

The Flagstaff radar (KFSX), 117 km from the middle of the area, began a volume at 20:37 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
Feb 5, 8:41 AM MSTSNOW 21 Nw Munds Park, AZ
Feb 5, 11:00 AM MSTSNOW 0.6Bellemont (Nws Flagstaf, AZSNOW BEGAN AROUND 2100 ON 2/4/19. STILL SNOWING.
Feb 5, 11:00 AM MSTSNOW 3Flagstaff Airport, AZSNOW BEGAN AROUND 2130 ON 2/4/19. STILL SNOWING.
Feb 5, 11:00 AM MSTSNOW 3.3Flagstaff Airport, AZSNOW BEGAN AROUND 2130 ON 2/4/19. STILL SNOWING.
Feb 5, 2:31 PM MSTSNOW 36 N Parks, AZ
Feb 5, 3:10 PM MSTSNOW 51 Sw Kachina Village, AZTRAINED SPOTTER REPORTS 5.0 IN OF SNOW. STILL SNOWING AT TIME OF OBSERVATION.
Feb 5, 5:00 PM MSTSNOW 4.6Flagstaff Airport, AZSNOW BEGAN AROUND 2130 ON 2/4/19. STILL SNOWING. 4 INCHES OF SNOW DEPTH.
Feb 5, 9:22 PM MSTSNOW 7.51 Sw Kachina Village, AZ7.5 INCHES OF TOTAL SNOW. STILL SNOWING AT TIME OF OBSERVATION.
Feb 5, 9:33 PM MSTSNOW 42 N Flagstaff Airport, AZ14-HOUR SNOW TOTAL SINCE 7AM. SNOW WAS STILL FALLING AT THE TIME OF THE REPORT.
Feb 5, 10:52 PM MSTSNOW 42 Wsw Downtown Flagstaf, AZ4 INCHES ON THE GROUND. STILL SNOWING.
Feb 6, 5:00 AM MSTSNOW 9.4Flagstaff Airport, AZSNOW TOTAL SINCE MONDAY EVENING (2/4) AT 9 PM.
Feb 6, 5:49 AM MSTSNOW 2Bellemont (Nws Flagstaf, AZSNOW TOTAL SINCE 10 PM MONDAY (2/4). SIGNIFICANT AMOUNT OF BLOWING AND DRIFTING SNOW.
Feb 6, 6:24 AM MSTSNOW 3.71 Nw Doney Park, AZNEW SNOW OVERNIGHT WITH BREEZY CONDITIONS AND DRIFTING SNOW.
Feb 6, 7:04 AM MSTSNOW 2.83 N Mcnary, AZ
Feb 6, 7:40 AM MSTSNOW 3.54 Nw Mcnary, AZSNOW STARTED LAST NIGHT AT 10:30PM AND CONTINUES TO PRESENT. STRONG WINDS ARE CAUSING BLOWING AND DRIFTING. TOTAL MOISTURE RECEIVED IN LAST 24 HOURS = 0.55.

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

The nearest sounding before it

Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 8.6 hours before the alert went out and 81 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, Flgstf/Belemont, AZ at 12:00Z on 2019-02-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Flgstf/Belemont, AZ at 12:00Z on 2019-02-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 246 square meters per square second.1939587897Sfc1 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
6 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
612 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
246 m²/s²
0-3 km storm-relative helicity
390 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

669 
WWUS45 KFGZ 042037
WSWFGZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Flagstaff AZ
137 PM MST Mon Feb 4 2019

AZZ004-015-016-050600-
/O.NEW.KFGZ.WS.W.0002.190205T0600Z-190206T1500Z/
Kaibab Plateau-Western Mogollon Rim-Eastern Mogollon Rim-
Including the cities of Jacob Lake, Flagstaff, and Happy Jack
137 PM MST Mon Feb 4 2019

...WINTER STORM WARNING IN EFFECT FROM 11 PM THIS EVENING TO 8 AM
MST WEDNESDAY ABOVE 6000 FEET...

* WHAT...Heavy snow expected. Plan on difficult travel 
  conditions. General snow accumulations of 6 to 12 inches are 
  expected.

* WHERE...Areas near Jacob Lake, Williams, Flagstaff, Forest
  Lakes, and Heber-Overgaard.

* WHEN...11 PM tonight to 8 AM Wednesday. Heaviest snowfall expected
  Tuesday night into Wednesday morning.

* ADDITIONAL DETAILS...Gusty southwest winds will create areas of
  blowing snow and low visibility at times.

 Snow forecast from 11 PM Tonight to 8 AM Wednesday:

     Doney Park  4 to 6  INCHES       Flagstaff  8 to 12 INCHES
   Forest Lakes  8 to 12 INCHES        Fredonia  1 to 3  INCHES
Heber-Overgaard  3 to 5  INCHES      Jacob Lake  6 to 10 INCHES
       Williams  7 to 11 INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

&&

$$

AZZ007-050600-
/O.NEW.KFGZ.WW.Y.0004.190205T0600Z-190206T1500Z/
Coconino Plateau-
Including the city of Valle
137 PM MST Mon Feb 4 2019

...WINTER WEATHER ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO
8 AM MST WEDNESDAY ABOVE 6000 FEET...

* WHAT...Snow expected. Plan on slippery road conditions. General
  snow accumulations of 3 to 6 inches are expected.

* WHERE...Areas near the South Rim of the Grand Canyon and Valle.

* WHEN...11 PM tonight to 8 AM Wednesday. Heaviest snowfall
  expected Tuesday night into Wednesday morning.

* ADDITIONAL DETAILS...Gusty southwest winds will create areas of
  blowing snow and low visibility at times.

 Snow forecast from 11 PM Tonight to 8 AM Wednesday:

          Valle  2 to 4  INCHES
      South Rim  4 to 8  INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

AZZ017-050600-
/O.NEW.KFGZ.WW.Y.0004.190206T0000Z-190206T1800Z/
White Mountains-
Including the cities of Show Low and Greer
137 PM MST Mon Feb 4 2019

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM TUESDAY TO 11 AM
MST WEDNESDAY ABOVE 6500 FEET...

* WHAT...Snow expected. Plan on slippery road conditions. General 
  snow accumulations of 3 to 6 inches.

* WHERE...White Mountains.

* WHEN...5 PM Tuesday to 11 AM Wednesday.

* ADDITIONAL DETAILS...Gusty southwest winds will create areas of
  blowing snow and low visibility at times.

  Snow forecast from 5 PM Tuesday to 11 AM Wednesday:

         Alpine  3 to 5  INCHES  Pinetop-Lkside  3 to 5  INCHES
       Show Low  2 to 4  INCHES      Whiteriver  1 to 2  INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/flagstaff
6 follow-up statements
818 
WWUS45 KFGZ 050603
WSWFGZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Flagstaff AZ
1103 PM MST Mon Feb 4 2019

AZZ004-015-016-051500-
/O.CON.KFGZ.WS.W.0002.000000T0000Z-190206T1500Z/
Kaibab Plateau-Western Mogollon Rim-Eastern Mogollon Rim-
Including the cities of Jacob Lake, Flagstaff, and Happy Jack
1103 PM MST Mon Feb 4 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST
WEDNESDAY ABOVE 6000 FEET...

* WHAT...Heavy snow expected. Plan on difficult travel 
  conditions. General snow accumulations of 6 to 12 inches are 
  expected.

* WHERE...Areas above 6000 feet near Jacob Lake, Williams, 
  Flagstaff, Forest Lakes, and Heber-Overgaard.

* WHEN...Through 8 AM Wednesday. Heaviest snowfall expected 
  Tuesday night into Wednesday morning.

* ADDITIONAL DETAILS...Gusty southwest winds will create areas of
  blowing snow and low visibility at times.

 Snow forecast from 11 PM Monday night to 8 AM Wednesday:

     Doney Park  4 to 8  INCHES       Flagstaff  9 to 13 INCHES
   Forest Lakes  8 to 12 INCHES        Fredonia  1 to 3  INCHES
Heber-Overgaard  2 to 4  INCHES      Jacob Lake  8 to 12 INCHES
       Williams  7 to 11 INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

&&

$$

AZZ006-051500-
/O.EXA.KFGZ.WW.Y.0004.190205T0600Z-190206T1500Z/
Grand Canyon Country-
Including the city of Grand Canyon Village
1103 PM MST Mon Feb 4 2019

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 AM MST WEDNESDAY
ABOVE 6000 FEET...

* WHAT...Snow expected. Plan on difficult travel conditions.
  General snow accumulations of 2 to 6 inches, with localized
  amounts up to 15 inches along the North Rim, are expected.

* WHERE...Areas above 6000 feet near the Grand Canyon.

* WHEN...Through 8 AM Wednesday.

* ADDITIONAL DETAILS...Gusty southwest winds will create areas of
  blowing snow and low visibility at times.

 Snow forecast from 11 PM Monday night to 8 AM Wednesday:

   Grand Canyon  4 to 6  INCHES       North Rim  9 to 15 INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

AZZ007-051500-
/O.CON.KFGZ.WW.Y.0004.000000T0000Z-190206T1500Z/
Coconino Plateau-
Including the city of Valle
1103 PM MST Mon Feb 4 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST
WEDNESDAY ABOVE 6000 FEET...

* WHAT...Snow expected. Plan on slippery road conditions. General
  snow accumulations of 3 to 6 inches are expected.

* WHERE...Areas above 6000 feet near Valle.

* WHEN...Through 8 AM Wednesday.

* ADDITIONAL DETAILS...Gusty southwest winds will create areas of
  blowing snow and low visibility at times.

 Snow forecast from 11 PM Monday night to 8 AM Wednesday:

          Valle  2 to 4  INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

AZZ017-051500-
/O.CON.KFGZ.WW.Y.0004.190206T0000Z-190206T1800Z/
White Mountains-
Including the cities of Show Low and Greer
1103 PM MST Mon Feb 4 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM TUESDAY TO
11 AM MST WEDNESDAY ABOVE 6500 FEET...

* WHAT...Snow expected. Plan on slippery road conditions. General
  snow accumulations of 3 to 6 inches.

* WHERE...Areas above 6500 feet near Alpine, Pinetop-Lakeside,
  Show Low and Whiteriver.

* WHEN...5 PM Tuesday to 11 AM Wednesday.

* ADDITIONAL DETAILS...Look for reduced visibilities at times.

  Snow forecast from 5 PM Tuesday to 11 AM Wednesday:

         Alpine  3 to 5  INCHES  Pinetop-Lkside  3 to 5  INCHES
       Show Low  2 to 4  INCHES      Whiteriver  1 to 2  INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/flagstaff
743 
WWUS45 KFGZ 051038
WSWFGZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Flagstaff AZ
338 AM MST Tue Feb 5 2019

AZZ004-015-016-061500-
/O.CON.KFGZ.WS.W.0002.000000T0000Z-190206T1500Z/
Kaibab Plateau-Western Mogollon Rim-Eastern Mogollon Rim-
Including the cities of Jacob Lake, Flagstaff, and Happy Jack
338 AM MST Tue Feb 5 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST
WEDNESDAY ABOVE 6000 FEET...

* WHAT...Heavy snow expected this evening. Snowfall intensity will
  increase this afternoon, becoming heaviest this evening through
  Wednesday morning. Plan on difficult travel conditions,
  including during the evening commute. Additional snow
  accumulations will generally range from 6 to 12 inches, with 
  locally higher amounts.

* WHERE...Kaibab Plateau, Western Mogollon Rim and Eastern 
  Mogollon Rim.

* WHEN...Until 8 AM Wednesday.

* ADDITIONAL DETAILS...Look for significant reductions in 
  visibility at times in falling and blowing snow.

  Additional snow forecast from 3 AM Today to 8 AM Wednesday:

     Doney Park  3 to 5  INCHES       Flagstaff  7 to 11 INCHES
   Forest Lakes 10 to 16 INCHES        Fredonia  1 to 2  INCHES
Heber-Overgaard  3 to 5  INCHES      Jacob Lake  9 to 13 INCHES
       Williams  7 to 11 INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

&&

$$

AZZ011-061500-
/O.EXA.KFGZ.WW.Y.0004.190206T0000Z-190206T1800Z/
Chuska Mountains and Defiance Plateau-
Including the cities of Window Rock and Ganado
338 AM MST Tue Feb 5 2019

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO
11 AM MST WEDNESDAY ABOVE 6500 FEET...

* WHAT...Snow expected this evening. Plan on slippery road
  conditions. Total snow accumulations of 2 to 4 inches are
  expected, with 6 inches or more over Buffalo Pass.

* WHERE...Chuska Mountains and Defiance Plateau.

* WHEN...5 PM today to 11 AM Wednesday.

* ADDITIONAL DETAILS...Look for reduced visibilities at times.

  Snow forecast from 5 PM Today to 11 AM Wednesday:

   Buffalo Pass  6 to 10 INCHES          Ganado  2 to 4  INCHES
    Window Rock  2 to 4  INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

AZZ006-007-061500-
/O.CON.KFGZ.WW.Y.0004.000000T0000Z-190206T1500Z/
Grand Canyon Country-Coconino Plateau-
Including the cities of Grand Canyon Village and Valle
338 AM MST Tue Feb 5 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST
WEDNESDAY ABOVE 6000 FEET...

* WHAT...Snow occurring. Snowfall intensity will increase this
  afternoon, becoming heaviest this evening through Wednesday
  morning. Plan on slippery road conditions. Additional snow
  accumulations of 3 to 6 inches are expected.

* WHERE...Grand Canyon Country and Coconino Plateau.

* WHEN...Until 8 AM Wednesday.

* ADDITIONAL DETAILS...Look for reduced visibilities at times.

  Additional snow forecast from 3 AM Today to 8 AM Wednesday:

   Grand Canyon  4 to 8  INCHES       North Rim  7 to 11 INCHES
          Valle  2 to 4  INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

AZZ017-061500-
/O.CON.KFGZ.WW.Y.0004.190206T0000Z-190206T1800Z/
White Mountains-
Including the cities of Show Low and Greer
338 AM MST Tue Feb 5 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 11 AM MST WEDNESDAY ABOVE 6500 FEET...

* WHAT...Snow expected this evening. Plan on difficult travel
  conditions. Total snow accumulations of 4 to 8 inches are 
  expected.

* WHERE...White Mountains.

* WHEN...5 PM today to 11 AM Wednesday.

* ADDITIONAL DETAILS...Look for reduced visibilities at times.

  Snow forecast from 5 PM Today to 11 AM Wednesday:

         Alpine  4 to 6  INCHES  Pinetop-Lkside  5 to 9  INCHES
       Show Low  4 to 6  INCHES      Whiteriver  1 to 3  INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/flagstaff
184 
WWUS45 KFGZ 052145
WSWFGZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Flagstaff AZ
245 PM MST Tue Feb 5 2019

AZZ004-015-016-061500-
/O.CON.KFGZ.WS.W.0002.000000T0000Z-190206T1500Z/
Kaibab Plateau-Western Mogollon Rim-Eastern Mogollon Rim-
Including the cities of Jacob Lake, Flagstaff, and Happy Jack
245 PM MST Tue Feb 5 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST
WEDNESDAY ABOVE 6000 FEET...

* WHAT...Heavy snow this evening through early Wednesday morning.
  Plan on difficult travel conditions, including during the 
  evening commute. General snow accumulations of 6 to 12 inches, 
  with locally higher amounts.

* WHERE...Areas above 6000 feet near Jacob Lake, Williams,
  Flagstaff, Forest Lakes, and Heber-Overgaard.

* WHEN...Until 8 AM Wednesday.

* ADDITIONAL DETAILS...Look for significant reductions in
  visibility at times in falling and blowing snow.

  Additional snow forecast from 2 PM Today to 8 AM Wednesday:

     Doney Park  2 to 4  INCHES       Flagstaff  5 to 9  INCHES
   Forest Lakes  9 to 13 INCHES        Fredonia  1 to 2  INCHES
Heber-Overgaard  3 to 5  INCHES      Jacob Lake  6 to 10 INCHES
       Williams  4 to 8  INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

&&

$$

AZZ006-007-061500-
/O.CON.KFGZ.WW.Y.0004.000000T0000Z-190206T1500Z/
Grand Canyon Country-Coconino Plateau-
Including the cities of Grand Canyon Village and Valle
245 PM MST Tue Feb 5 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST
WEDNESDAY ABOVE 6000 FEET...

* WHAT...Snow occurring. The heaviest snow will fall this evening
  through early Wednesday morning. Plan on difficult travel
  conditions, including during the evening commute. Additional
  snow accumulations of 3 to 6 inches are expected with locally
  higher amounts on the North Rim.

* WHERE...Areas above 6000 feet near the Grand Canyon.

* WHEN...Until 8 AM Wednesday.

* ADDITIONAL DETAILS...Look for significant reductions in 
  visibility at times in falling and blowing snow.

  Additional snow forecast from 2 PM Today to 8 AM Wednesday:

   Grand Canyon  3 to 5  INCHES       North Rim  5 to 9  INCHES
          Valle  1 to 3  INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

AZZ011-017-061500-
/O.CON.KFGZ.WW.Y.0004.190206T0000Z-190206T1800Z/
Chuska Mountains and Defiance Plateau-White Mountains-
Including the cities of Window Rock, Ganado, Show Low, and Greer
245 PM MST Tue Feb 5 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
WEDNESDAY ABOVE 6500 FEET...

* WHAT...Snow expected. Plan on slippery road conditions. General
  snow accumulations of 4 to 8 inches are expected with locally 
  higher amounts.

* WHERE...Chuska Mountains and Defiance Plateau and White 
  Mountains.

* WHEN...5 PM today to 11 AM Wednesday.

* ADDITIONAL DETAILS...Look for significant reductions in 
  visibility at times in falling and blowing snow.

  Snow forecast from 5 PM Today to 11 AM Wednesday:

         Alpine  4 to 6  INCHES    Buffalo Pass  6 to 10 INCHES
         Ganado  2 to 4  INCHES  Pinetop-Lkside  5 to 9  INCHES
       Show Low  4 to 6  INCHES      Whiteriver  1 to 3  INCHES
    Window Rock  2 to 4  INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/flagstaff
933 
WWUS45 KFGZ 060546
WSWFGZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Flagstaff AZ
1046 PM MST Tue Feb 5 2019


AZZ004-015-016-061500-
/O.CON.KFGZ.WS.W.0002.000000T0000Z-190206T1500Z/
Kaibab Plateau-Western Mogollon Rim-Eastern Mogollon Rim-
Including the cities of Jacob Lake, Flagstaff, and Happy Jack
1046 PM MST Tue Feb 5 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST
WEDNESDAY ABOVE 6000 FEET...

* WHAT...Heavy snow occurring. Plan on difficult travel conditions
  overnight and for the morning commute. Additional snow 
  accumulations of 4 to 7 inches are expected.

* WHERE...Areas above 6000 feet near Jacob Lake, Williams,
  Flagstaff, Forest Lakes, and Heber-Overgaard.

* WHEN...Until 8 AM Wednesday.

* ADDITIONAL DETAILS...Look for significant reductions in 
  visibility at times.

  Additional snow forecast from 10 PM Today to 8 AM Wednesday:

     Doney Park  1 to 2  INCHES       Flagstaff  2 to 4  INCHES
   Forest Lakes  4 to 8  INCHES        Fredonia  0 to 1  INCHES
Heber-Overgaard  1 to 3  INCHES      Jacob Lake  2 to 4  INCHES
       Williams  1 to 3  INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

&&

$$

AZZ006-007-061500-
/O.CON.KFGZ.WW.Y.0004.000000T0000Z-190206T1500Z/
Grand Canyon Country-Coconino Plateau-
Including the cities of Grand Canyon Village and Valle
1046 PM MST Tue Feb 5 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST
WEDNESDAY ABOVE 6000 FEET...

* WHAT...Snow occurring. Plan on difficult travel conditions
  overnight and for the morning commute. Additional snow
  accumulations of 1 to 4 inches are expected.

* WHERE...Areas above 6000 feet near the Grand Canyon and Valle.

* WHEN...Until 8 AM Wednesday.

* ADDITIONAL DETAILS...Look for reduced visibilities at times.

  Additional snow forecast from 10 PM Today to 8 AM Wednesday:

   Grand Canyon  1 to 3  INCHES       North Rim  2 to 4  INCHES
          Valle  1 to 2  INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

AZZ011-017-061500-
/O.CON.KFGZ.WW.Y.0004.000000T0000Z-190206T1800Z/
Chuska Mountains and Defiance Plateau-White Mountains-
Including the cities of Window Rock, Ganado, Show Low, and Greer
1046 PM MST Tue Feb 5 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST
WEDNESDAY ABOVE 6500 FEET...

* WHAT...Snow occurring. Plan on slippery road conditions
  overnight and for the morning commute. Additional snow
  accumulations of 4 to 7 inches with locally higher amounts.

* WHERE...Chuska Mountains and Defiance Plateau and White 
  Mountains.

* WHEN...Until 11 AM Wednesday.

* ADDITIONAL DETAILS...Look for reduced visibilities at times.

  Additional snow forecast from 10 PM Today to 11 AM Wednesday:

         Alpine  3 to 5  INCHES    Buffalo Pass  5 to 9  INCHES
         Ganado  2 to 4  INCHES  Pinetop-Lkside  4 to 8  INCHES
       Show Low  3 to 5  INCHES      Whiteriver  1 to 3  INCHES
    Window Rock  1 to 3  INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/flagstaff
565 
WWUS45 KFGZ 061050
WSWFGZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Flagstaff AZ
350 AM MST Wed Feb 6 2019

AZZ004-015-016-061500-
/O.CON.KFGZ.WS.W.0002.000000T0000Z-190206T1500Z/
Kaibab Plateau-Western Mogollon Rim-Eastern Mogollon Rim-
Including the cities of Jacob Lake, Flagstaff, and Happy Jack
350 AM MST Wed Feb 6 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST THIS
MORNING ABOVE 6000 FEET...

* WHAT...Heavy snow occurring. Plan on difficult travel
  conditions, especially during the morning commute. Additional
  snow accumulations of 1 to 2 inches are expected.

* WHERE...Kaibab Plateau, Western Mogollon Rim and Eastern 
  Mogollon Rim.

* WHEN...Until 8 AM today.

* ADDITIONAL DETAILS...Look for significant reductions in
  visibility at times in falling and blowing snow.

  Additional snow forecast from 3 AM Today to 8 AM Today:

     Doney Park  0 to 1  INCHES       Flagstaff  0 to 1  INCHES
   Forest Lakes  1 to 2  INCHES        Fredonia  0 to 1  INCHES
Heber-Overgaard  0 to 1  INCHES      Jacob Lake  0 to 1  INCHES
       Williams  0 to 1  INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. The latest road conditions for the state you are
calling from can be obtained by calling 5 1 1.

&&

$$

AZZ006-007-061500-
/O.CON.KFGZ.WW.Y.0004.000000T0000Z-190206T1500Z/
Grand Canyon Country-Coconino Plateau-
Including the cities of Grand Canyon Village and Valle
350 AM MST Wed Feb 6 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST THIS
MORNING ABOVE 6000 FEET...

* WHAT...Snow occurring. Plan on slippery road conditions this
  morning. Additional snow accumulations of up to one inch are 
  expected.

* WHERE...Grand Canyon Country and Coconino Plateau.

* WHEN...Until 8 AM today.

* ADDITIONAL DETAILS...Look for reduced visibilities at times.

  Additional snow forecast from 3 AM Today to 8 AM Today:

   Grand Canyon  0 to 1  INCHES       North Rim  0 to 1  INCHES
          Valle  0 to 1  INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

AZZ011-017-061800-
/O.CON.KFGZ.WW.Y.0004.000000T0000Z-190206T1800Z/
Chuska Mountains and Defiance Plateau-White Mountains-
Including the cities of Window Rock, Ganado, Show Low, and Greer
350 AM MST Wed Feb 6 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING ABOVE 6500 FEET...

* WHAT...Snow occurring. Plan on slippery road conditions,
  especially during the morning commute. Additional snow
  accumulations of 2 to 4 inches are expected, with up to 6 inches
  over Buffalo Pass.

* WHERE...Chuska Mountains and Defiance Plateau and White 
  Mountains.

* WHEN...Until 11 AM today.

* ADDITIONAL DETAILS...Look for reduced visibilities at times in
  falling and blowing snow.

  Additional snow forecast from 3 AM Today to 11 AM Today:

         Alpine  1 to 3  INCHES    Buffalo Pass  4 to 6  INCHES
         Ganado  1 to 2  INCHES  Pinetop-Lkside  2 to 4  INCHES
       Show Low  1 to 3  INCHES      Whiteriver  0 to 1  INCHES
    Window Rock  1 to 3  INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/flagstaff
237 
WWUS45 KFGZ 061458
WSWFGZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Flagstaff AZ
758 AM MST Wed Feb 6 2019

AZZ004-015-016-061600-
/O.EXP.KFGZ.WS.W.0002.000000T0000Z-190206T1500Z/
Kaibab Plateau-Western Mogollon Rim-Eastern Mogollon Rim-
Including the cities of Jacob Lake, Flagstaff, and Happy Jack
758 AM MST Wed Feb 6 2019

...WINTER STORM WARNING WILL EXPIRE AT 8 AM MST THIS MORNING
ABOVE 6000 FEET...

Widespread heavy snow has decreased across the area this morning
and the advisory will expire. Local snow showers and blowing snow
by still impact travel across the area over the next few hours. 

$$

AZZ006-007-061600-
/O.EXP.KFGZ.WW.Y.0004.000000T0000Z-190206T1500Z/
Grand Canyon Country-Coconino Plateau-
Including the cities of Grand Canyon Village and Valle
758 AM MST Wed Feb 6 2019

...WINTER WEATHER ADVISORY WILL EXPIRE AT 8 AM MST THIS MORNING
ABOVE 6000 FEET...

Widespread heavy snow has decreased across the area this morning
and the advisory will expire. Local snow showers and blowing snow
by still impact travel across the area over the next few hours. 

$$

AZZ011-017-061800-
/O.CON.KFGZ.WW.Y.0004.000000T0000Z-190206T1800Z/
Chuska Mountains and Defiance Plateau-White Mountains-
Including the cities of Window Rock, Ganado, Show Low, and Greer
758 AM MST Wed Feb 6 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS
MORNING ABOVE 6500 FEET...

* WHAT...Snow occurring. Plan on slippery road conditions, 
  including during the morning commute. Additional snow 
  accumulations of 1 to 3 inches are expected.

* WHERE...Chuska Mountains and Defiance Plateau and White 
  Mountains.

* WHEN...Until 11 AM today.

* ADDITIONAL DETAILS...Look for reduced visibilities at times.

  Additional snow forecast from 7 AM Today to 11 AM Today:

         Alpine  0 to 1  INCHES    Buffalo Pass  1 to 3  INCHES
         Ganado  0 to 1  INCHES  Pinetop-Lkside  1 to 2  INCHES
       Show Low  0 to 1  INCHES      Whiteriver  0 to 1  INCHES
    Window Rock  0 to 1  INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving.
The latest road conditions for the state you are calling from can
be obtained by calling 5 1 1.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/flagstaff

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Flagstaff, AZ wrote its last area forecast discussion before this winter storm warning went out at Feb 4, 9:35 AM MST, 4 hours 2 minutes earlier.

Area forecast discussion, Feb 4, 9:35 AM MST, 4 hours 2 minutes before
Area Forecast Discussion
National Weather Service Flagstaff AZ
935 AM MST Mon Feb 4 2019

.SYNOPSIS...Moist southwest flow will keep unsettled and cool
conditions going through early Tuesday. A strong cold front
should be moving across northern Arizona Tuesday night with
accumulating snow likely above 6000 feet. Dry weather should
return for Thursday and Friday.

&&

.DISCUSSION...Very active weather continues through Wednesday with
significant snow accumulation possible above 6000 feet. Hydro
concerns remain south of the Mogollon Rim where water levels
remain high across the creeks and streams. As of 9:30am this
morning, the Verde River near Camp Verde is at 13.3 feet and
nearly 10,000 cfs. This indicates a significant amount of water
still remains in this area.

Rain and snow showers will linger, but generally decrease in
coverage through the afternoon. An increase in precipitation
intensity and coverage is anticipated tonight into Tuesday with
snow levels between 6,000-6,500 feet. A cold front associated with
a very cold upper low will cross the region Tuesday night into
Wednesday morning which will bring the period of most significant
precipitation and lowering snow levels. General snowfall amounts
of 6-12 inches above 6,000 feet are forecasted at this time
through midday Wednesday. Additionally, gusty southwest winds will
persist through the period with the potential for blowing snow
and low visibility especially Tuesday night and Wednesday morning.
Daytime temperatures on Wednesday will struggle to get out of the
mid-upper 20s over the higher terrain with wind chills making it
feel even colder.

Based on the early 12Z guidance that has come in, winter weather
products will be needed for this afternoon's forecast package. One
concern pertaining to snowfall amounts is the shallow nature of
the moisture until Tuesday evening when deeper moisture arrives.
There is also concern for more hydro issues with additional
precipitation on the way. Lots to consider, so stay tuned to the
latest forecasts in what will be an impactful 36-48 hours of
weather across northern Arizona.

&&

.PREV DISCUSSION /454 AM MST/...Some streams and creeks continue
to run high this morning and a flood warning continues for east-
central Yavapai County until 845 this morning.

A period of unsettled weather will persist through midweek.
Precipitation chances with generally light showers will linger
today and early Tuesday. Greater chances for significant rain and
snow are forecast to develop later Tuesday into Wednesday. This
next low pressure system, currently situated near the Pacific
Northwest, will be colder than the Saturday night storm, with
more of the precipitation falling as snow. Present indications
are for accumulating snow at and above 7000 feet during the day
Tuesday, then accumulating snow down to 5500-6000 feet Tuesday
night and early Wednesday.

Dry conditions should return Thursday and Friday in the wake of
the passing low pressure system, along with afternoon temps
showing a gradual warming trend.

&&

.AVIATION...For the 18Z Package...ISOLD to SCT -SHRA/-SHSN, along
with some DZ and FG, from the Mogollon Rim and NW to the Kaibab
Plateau. Local IFR/LIFR conditions for cigs/vis primarily along and
south of Mogollon Rim. Surface S-SW winds at 10-20g25-30 kts. ISOLD
to SCT precipitation is expected to continue over the Mogollon Rim
and Kaibab Plateau through the TAF period. Aviation discussion not
updated for TAF amendments.

&&

.FIRE WEATHER...Isolated to scattered rain and snow showers will
continue today, especially along the Mogollon Rim and the Kaibab
Plateau. Rain and snow chances increase tonight and Tuesday, mainly
over the same areas. Temperatures will remain below normal, with
breezy southwest winds today and Tuesday.

Wednesday through Friday...Rain and snow showers will persist on
Wednesday, along with colder temperatures and decreasing southwest
winds. Drier conditions and a modest warming trend will develop
Thursday and Friday, with less wind.

&&

.FGZ WATCHES/WARNINGS/ADVISORIES...NONE.

&&

PUBLIC...TPS/KD
AVIATION...NL
FIRE WEATHER...Peterson

For Northern Arizona weather information visit
weather.gov/flagstaff

The office that day

Everything else NWS Flagstaff, AZ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 3, 8:54 PM MSTAreal Flood WarningFGZYavapai15 hr
Feb 4, 1:37 PM MSTWinter Weather AdvisoryFGZApache, Coconino, Navajo45 hr
Feb 4, 2:25 PM MSTFlash Flood WatchFGZCoconino, Gila, Yavapai22 hr

Nearby

Winter Storm Warnings in Arizona, 2019Every winter storm warning in 2019

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.