Alert archive / Arizona / Red Flag Warnings in 2017

Red Flag Warning 7, NWS Tucson, AZ

April 27, 20176 counties in Arizona

NWS Tucson, AZ issued this red flag warning at Apr 27, 2017, 3:43 AM MST for 6 counties in Arizona. It took effect at Apr 28, 2017, 10:00 AM MST. It was in force for 10 hr. 2 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
Apr 27, 2017, 3:43 AM MST (10:43 UTC)
In effect from
Apr 28, 2017, 10:00 AM MST
Expired
Apr 28, 2017, 8:00 PM MST
In force
10 hr
Issued by
NWS Tucson, AZ

Counties Cochise County, AZ, Graham County, AZ, Greenlee County, AZ, Pima County, AZ, Pinal County, AZ, Santa Cruz County, AZ

The radar

The Tucson radar (KEMX), 61 km from the middle of the area, began a volume at 10:44 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
Apr 28, 6:25 PM MSTNON-TSTM WND GST 4010 Ese Queen Creek, AZMESONET STATION SRP22, 10 ESE QUEEN CREEK.
Apr 28, 7:20 PM MSTNON-TSTM WND GST 525 E Queen Creek, AZ

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

The nearest sounding before it

Tuscon, AZ (KDMA), launched 00:00Z, 10.7 hours before the alert went out and 49 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, Tuscon, AZ at 00:00Z on 2017-04-27Temperature 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, Tuscon, AZ at 00:00Z on 2017-04-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 square meters per square second.19395878Sfc1 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
4156 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
161 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

761 
WWUS85 KTWC 271043
RFWTWC

URGENT - FIRE WEATHER MESSAGE
National Weather Service Tucson AZ
343 AM MST Thu Apr 27 2017

...Critical Fire Weather Conditions expected across portions of
southeast Arizona today...Friday and possibly Saturday...

.A weather system will approach the region today and then
pass through the area on Friday. Winds will increase this 
afternoon resulting in critical fire weather conditions eastern 
areas. Strong winds are expected area wide Friday with widespread 
critical fire weather conditions likely. Humidity levels will be 
a bit elevated but not enough to temper the potential spread of 
ongoing fires. Strong winds and very low humidity levels are 
again possible east of Tucson Saturday. 

AZZ151-152-272045-
/O.UPG.KTWC.FW.A.0004.170428T1700Z-170429T0300Z/
/O.NEW.KTWC.FW.W.0007.170428T1700Z-170429T0300Z/
/O.CON.KTWC.FW.W.0006.170427T1900Z-170428T0200Z/
Arizona Fire Weather Zone 151
Eastern Pima County-Southeastern Pinal County-
Santa Cruz County-Western Cochise County-
Coronado NF-TDC-Arizona Fire Weather Zone 152
Southern Greenlee County-Central and Eastern Cochise County-
Southern Graham County-Southern San Carlos Apache Nation-
343 AM MST Thu Apr 27 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 7 PM MST
THIS EVENING FOR GUSTY WINDS...LOW HUMIDITY AND VERY HIGH FIRE
DANGER FOR FIRE WEATHER ZONES 151 AND 152... 

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 8 PM MST FRIDAY FOR 
HIGH WINDS AND VERY HIGH FIRE DANGER FOR FIRE WEATHER ZONES 151 
AND 152...

The National Weather Service in Tucson has issued a Red Flag
Warning, which is in effect from noon to 7 PM MST today. A Red 
Flag Warning is also in effect from 10 AM to 8 PM MST Friday.

* AFFECTED AREA...Fire weather zone 151 and 152.

* TIMING...The Red Flag warnings will be in effect from Noon
  through 7 PM MST this evening, and again Friday from 10 AM to 8 PM
  MST.

* WINDS...Westerly wind 15 to 25 mph with gusts near 35 mph,
  especially across higher terrain including the Whetstone
  Mountains. The wind will quickly ease this evening just after
  sunset. On Friday, strong southwest to west winds will develop
  during the morning hours and last longer into the evening. 

* RELATIVE HUMIDITY...Minimum humidity levels today will range 
  from 11 to 16 percent, dropping into the teens by 10 am. Minimum 
  humidity levels Friday will range from around 8 to 12 percent 
  western areas to 14 to 23 percent eastern areas.

* IMPACTS...ANY FIRES THAT DEVELOP OR ARE ONGOING WILL HAVE THE 
  POTENTIAL TO SPREAD RAPIDLY, ESPECIALLY FRIDAY UNDER THE 
  INFLUENCE OF VERY STRONG WINDS.

* FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT 
  WEATHER.GOV/TUCSON AND CLICK ON THE DETAILED HAZARDS TAB.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or are expected to develop. A
combination of strong winds...low relative humidity...and dry
vegetation will create the potential for rapid and erratic fire
growth.

Please advise the appropriate officials or fire crews in the
field of the Red Flag Warning for portions of Southeast Arizona.

&&

$$

AZZ150-272045-
/O.UPG.KTWC.FW.A.0004.170428T1700Z-170429T0300Z/
/O.NEW.KTWC.FW.W.0007.170428T1700Z-170429T0300Z/
Arizona Fire Weather Zone 150
Western Pima County-South Central Pinal County-
Tohono O'Odham Nation-TDC-
343 AM MST Thu Apr 27 2017

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 8 PM MST FRIDAY FOR
HIGH WINDS AND VERY HIGH FIRE DANGER FOR FIRE WEATHER ZONE 150...

The National Weather Service in Tucson has issued a Red Flag
Warning, which is in effect from 10 AM to 8 PM MST Friday. 

* AFFECTED AREA...Fire weather zone 150.

* TIMING...The Red Flag Warning is from 10 AM to 8 PM MST Friday.

* WINDS...Strong southwest to west winds will develop Friday 
  morning hour and last well into the evening. 

* RELATIVE HUMIDITY...Minimum humidity levels Friday will range 
  from around 8 to 14 percent.

* IMPACTS...ANY FIRES THAT DEVELOP OR ARE ONGOING WILL HAVE THE 
  POTENTIAL TO SPREAD RAPIDLY.

* FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT 
  WEATHER.GOV/TUCSON AND CLICK ON THE DETAILED HAZARDS TAB.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or are expected to develop. A
combination of strong winds...low relative humidity...and dry
vegetation will create the potential for rapid and erratic fire
growth.

Please advise the appropriate officials or fire crews in the
field of the Red Flag Warning for portions of Southeast Arizona.

&&

$$

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
6 follow-up statements
070 
WWUS85 KTWC 272024
RFWTWC

URGENT - FIRE WEATHER MESSAGE
National Weather Service Tucson AZ
124 PM MST Thu Apr 27 2017

...Critical Fire Weather Conditions expected across portions of
southeast Arizona today...Friday and Saturday...

.A weather system will approach the region today and then pass
through the area on Friday. Winds will increase this afternoon
resulting in critical fire weather conditions in eastern areas.
Strong winds are expected area-wide Friday with widespread 
critical fire weather conditions likely. Humidity levels in some
locations will be slightly higher than 15 percent, but not enough
to temper the potential spread of ongoing fires. Strong winds and
very low humidity levels are again expected east and southeast of
Tucson Saturday.

AZZ151-152-280430-
/O.NEW.KTWC.FW.A.0005.170429T1900Z-170430T0300Z/
/O.CON.KTWC.FW.W.0006.000000T0000Z-170428T0200Z/
/O.CON.KTWC.FW.W.0007.170428T1700Z-170429T0300Z/
Arizona Fire Weather Zone 151
Eastern Pima County-Southeastern Pinal County-
Santa Cruz County-Western Cochise County-
Coronado NF-TDC-Arizona Fire Weather Zone 152
Southern Greenlee County-Central and Eastern Cochise County-
Southern Graham County-Southern San Carlos Apache Nation-
124 PM MST Thu Apr 27 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MST THIS EVENING
FOR GUSTY WINDS...LOW HUMIDITY AND VERY HIGH FIRE DANGER FOR FIRE
WEATHER ZONES 151 AND 152...
...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 8 PM MST 
FRIDAY FOR HIGH WINDS AND VERY HIGH FIRE DANGER FOR FIRE WEATHER 
ZONES 151 AND 152...
...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH 
SATURDAY EVENING FOR GUSTY WINDS...LOW HUMIDITY AND VERY HIGH FIRE
DANGER FOR FIRE WEATHER ZONES 151 AND 152...

The National Weather Service in Tucson has issued a Fire Weather
Watch, which is in effect from Saturday afternoon through
Saturday evening. 

The National Weather Service in Tucson has issued a Red Flag
Warning, which is in effect from noon to 7 PM MST today. A Red
Flag Warning is also in effect from 10 AM to 8 PM MST Friday.

* AFFECTED AREA...Fire weather zones 151 and 152.

* TIMING...The Red Flag warnings will be in effect through 7 PM
  MST this evening, and again Friday from 10 AM to 8 PM MST. The 
  Watch will be in effect Saturday from Noon to 8 PM MST.
  

* WINDS...Westerly wind 15 to 25 mph with gusts near 35 mph,
  especially across higher terrain including the Whetstone
  Mountains. The wind will quickly ease this evening just after
  sunset. On Friday, stronger southwest to west winds will develop
  during the morning hours and last longer into the evening, with
  another round Saturday afternoon and evening.

* RELATIVE HUMIDITY...Minimum humidity levels today will range
  from 11 to 16 percent. Minimum humidity levels Friday will range
  from around 8 to 12 percent western areas to 14 to 21 percent in
  eastern areas.

* IMPACTS...ANY FIRES THAT DEVELOP OR ARE ONGOING WILL HAVE THE 
  POTENTIAL TO SPREAD RAPIDLY, ESPECIALLY FRIDAY UNDER THE 
  INFLUENCE OF VERY STRONG WINDS.

* FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT 
  WEATHER.GOV/TUCSON AND CLICK ON THE DETAILED HAZARDS TAB.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or are expected to develop. A
combination of strong winds...low relative humidity...and dry
vegetation will create the potential for rapid and erratic fire
growth.

Please advise the appropriate officials or fire crews in the
field of the Red Flag Warning for portions of Southeast Arizona.

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

Please advise the appropriate officials or fire crews in the
field of the Fire Weather Watch for portions of Southeast
Arizona.

&&

$$

AZZ150-280430-
/O.CON.KTWC.FW.W.0007.170428T1700Z-170429T0300Z/
Arizona Fire Weather Zone 150
Western Pima County-South Central Pinal County-
Tohono O'Odham Nation-TDC-
124 PM MST Thu Apr 27 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 8 PM MST
FRIDAY FOR GUSTY WINDS...LOW HUMIDITY AND VERY HIGH FIRE DANGER 
FOR FIRE WEATHER ZONE 150...

* AFFECTED AREA...Fire weather zone 150.

* TIMING...The Red Flag Warning is from 10 AM to 8 PM MST 
  Friday.

* WINDS...Strong southwest to west winds will develop by late 
  Friday morning and last well into the evening.

* RELATIVE HUMIDITY...Minimum humidity levels Friday will range 
  from around 8 to 14 percent.

* IMPACTS...ANY FIRES THAT DEVELOP OR ARE ONGOING WILL HAVE THE 
  POTENTIAL TO SPREAD RAPIDLY.

* FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT 
  WEATHER.GOV/TUCSON AND CLICK ON THE DETAILED HAZARDS TAB.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or are expected to develop. A
combination of strong winds...low relative humidity...and dry
vegetation will create the potential for rapid and erratic fire
growth.

Please advise the appropriate officials or fire crews in the
field of the Red Flag Warning for portions of Southeast Arizona.

&&

$$


Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
981 
WWUS85 KTWC 280411
RFWTWC

URGENT - FIRE WEATHER MESSAGE
National Weather Service Tucson AZ
911 PM MST Thu Apr 27 2017

...Critical Fire Weather Conditions expected across portions of
southeast Arizona Friday and Saturday...

.A weather system will approach the region and pass through the 
area on Friday. Strong winds are expected area-wide Friday with 
widespread critical fire weather conditions likely. Humidity 
levels in some locations will be slightly higher than 15 percent, 
but not enough to temper the potential spread of ongoing fires. 
Strong winds and very low humidity levels are again expected east 
and southeast of Tucson Saturday.

AZZ151-152-281315-
/O.CON.KTWC.FW.W.0007.170428T1700Z-170429T0300Z/
/O.CON.KTWC.FW.A.0005.170429T1900Z-170430T0300Z/
Arizona Fire Weather Zone 151
Eastern Pima County-Southeastern Pinal County-
Santa Cruz County-Western Cochise County-
Coronado NF-TDC-Arizona Fire Weather Zone 152
Southern Greenlee County-Central and Eastern Cochise County-
Southern Graham County-Southern San Carlos Apache Nation-
911 PM MST Thu Apr 27 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 8 PM MST
FRIDAY FOR GUSTY WINDS...LOW HUMIDITY AND VERY HIGH FIRE DANGER
FOR FIRE WEATHER ZONES 151 AND 152...
...FIRE WEATHER WATCH IS IN EFFECT FROM SATURDAY AFTERNOON 
THROUGH SATURDAY EVENING FOR GUSTY WINDS...LOW HUMIDITY AND VERY 
HIGH FIRE DANGER FOR FIRE WEATHER ZONES 151 AND 152... 

The National Weather Service in Tucson continues the Red Flag 
Warning from 10 AM to 8 PM MST Friday.

* AFFECTED AREA...All of fire weather zones 151 and 152 for the
  Friday warning. The southeast part of zone 151 and most of 152
  for the Saturday watch. 

* TIMING...The Friday Red Flag warning will be in effect from 10 
  AM to 8 PM MST. The Watch will be in effect Saturday from Noon 
  to 8 PM MST.

* WINDS...Strong southwest to west winds of 20 to 30 mph with
  gusts to 45 mph will develop during the morning hours Friday and
  last well into the evening. Another round of somewhat lighter
  winds area forecast Saturday afternoon and evening.
 
* RELATIVE HUMIDITY...Minimum humidity levels Friday will range
  from around 8 to 12 percent western areas to 14 to 21 percent in
  eastern areas. For Saturday minimum humidity levels will 
  generally be 7 to 12 percent area wide. 

* IMPACTS...any fires that develop or are ongoing will have the
  potential to spread rapidly under the influence of very strong
  winds. 

* FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT 
  WEATHER.GOV/TUCSON AND CLICK ON THE DETAILED HAZARDS TAB.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or are expected to develop. A
combination of strong winds...low relative humidity...and dry
vegetation will create the potential for rapid and erratic fire
growth.

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

Please advise the appropriate officials or fire crews in the
field of the Fire Weather Watch for portions of Southeast
Arizona.

&&

$$

AZZ150-281315-
/O.CON.KTWC.FW.W.0007.170428T1700Z-170429T0300Z/
Arizona Fire Weather Zone 150
Western Pima County-South Central Pinal County-
Tohono O'Odham Nation-TDC-
911 PM MST Thu Apr 27 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 8 PM MST
FRIDAY FOR GUSTY WINDS...LOW HUMIDITY AND VERY HIGH FIRE DANGER
FOR FIRE WEATHER ZONE 150...

* AFFECTED AREA...Fire weather zone 150.

* TIMING...The Red Flag Warning is from 10 AM to 8 PM MST 
  Friday.

* WINDS...Strong southwest to west winds of 20 to 25 mph with
  gusts to 40 mph will develop by late Friday morning and last 
  well into the evening.

* RELATIVE HUMIDITY...Minimum humidity levels Friday will range 
  from around 8 to 14 percent.

* IMPACTS...any fires that develop or are ongoing will have the
  potential to spread rapidly.

* FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT 
  WEATHER.GOV/TUCSON AND CLICK ON THE DETAILED HAZARDS TAB.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or are expected to develop. A
combination of strong winds...low relative humidity...and dry
vegetation will create the potential for rapid and erratic fire
growth.

Please advise the appropriate officials or fire crews in the
field of the Red Flag Warning for portions of Southeast Arizona.

&&

$$

Cerniglia
Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
945 
WWUS85 KTWC 281005
RFWTWC

URGENT - FIRE WEATHER MESSAGE
National Weather Service Tucson AZ
305 AM MST Fri Apr 28 2017

...Critical Fire Weather Conditions expected across portions of
southeast Arizona today and Saturday...

.A weather system will pass through the region today. Strong 
winds are expected area-wide today with widespread critical fire 
weather conditions likely. Humidity levels in some locations will 
be slightly higher than 15 percent, but not enough to temper the 
potential spread of ongoing fires. Strong winds and very low 
humidity levels are again expected east and southeast of Tucson 
Saturday.

AZZ151-152-281815-
/O.CON.KTWC.FW.W.0007.170428T1700Z-170429T0300Z/
/O.CON.KTWC.FW.A.0005.170429T1900Z-170430T0300Z/
Arizona Fire Weather Zone 151
Eastern Pima County-Southeastern Pinal County-
Santa Cruz County-Western Cochise County-
Coronado NF-TDC-Arizona Fire Weather Zone 152
Southern Greenlee County-Central and Eastern Cochise County-
Southern Graham County-Southern San Carlos Apache Nation-
305 AM MST Fri Apr 28 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
8 PM MST THIS EVENING FOR GUSTY WINDS...LOW HUMIDITY AND VERY
HIGH FIRE DANGER FOR FIRE WEATHER ZONES 151 AND 152...

...FIRE WEATHER WATCH IS IN EFFECT FROM SATURDAY AFTERNOON 
THROUGH SATURDAY EVENING FOR GUSTY WINDS...LOW HUMIDITY AND VERY 
HIGH FIRE DANGER FOR FIRE WEATHER ZONES 151 AND 152... 

* AFFECTED AREA...All of fire weather zones 151 and 152 for the
  Warning today. The southeast part of zone 151 and most of 152
  for the Fire Weather Watch on Saturday.

* TIMING...The Red Flag warning will be in effect from 10 AM to 8
  PM MST today. The Watch will be in effect Saturday from Noon to
  8 PM MST.

* WINDS...Strong southwest to west winds of 20 to 30 mph with
  gusts to 45 mph will develop during the morning hours today and
  last well into the evening. Another round of somewhat lighter 
  winds area forecast Saturday afternoon and evening.

* RELATIVE HUMIDITY...Minimum humidity levels today will range 
  from around 8 to 12 percent western areas to 14 to 21 percent in
  eastern areas. For Saturday minimum humidity levels will 
  generally be 7 to 12 percent area wide.

* IMPACTS...any fires that develop or are ongoing will have the 
  potential to spread rapidly under the influence of very 
  strong winds.

* FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT 
  WEATHER.GOV/TUCSON AND CLICK ON THE DETAILED HAZARDS TAB.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or are expected to develop. A
combination of strong winds...low relative humidity...and dry
vegetation will create the potential for rapid and erratic fire
growth.

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

Please advise the appropriate officials or fire crews in the
field of the Fire Weather Watch for portions of Southeast
Arizona.

&&

$$

AZZ150-281815-
/O.CON.KTWC.FW.W.0007.170428T1700Z-170429T0300Z/
Arizona Fire Weather Zone 150
Western Pima County-South Central Pinal County-
Tohono O'Odham Nation-TDC-
305 AM MST Fri Apr 28 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
8 PM MST THIS EVENING FOR GUSTY WINDS...LOW HUMIDITY AND VERY
HIGH FIRE DANGER FOR FIRE WEATHER ZONE 150...

* AFFECTED AREA...Fire weather zone 150.

* TIMING...The Red Flag Warning is from 10 AM to 8 PM MST today.

* WINDS...Strong southwest to west winds of 20 to 25 mph with
  gusts to 40 mph will develop by late this morning and last well
  into the evening.

* RELATIVE HUMIDITY...Minimum humidity levels today will range 
  from around 8 to 14 percent.

* IMPACTS...any fires that develop or are ongoing will have the 
  potential to spread rapidly.

* FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT 
  WEATHER.GOV/TUCSON AND CLICK ON THE DETAILED HAZARDS TAB.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or are expected to develop. A
combination of strong winds...low relative humidity...and dry
vegetation will create the potential for rapid and erratic fire
growth.

Please advise the appropriate officials or fire crews in the
field of the Red Flag Warning for portions of Southeast Arizona.

&&

$$


Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
846 
WWUS85 KTWC 281740
RFWTWC

URGENT - FIRE WEATHER MESSAGE
National Weather Service Tucson AZ
1040 AM MST Fri Apr 28 2017

...Critical Fire Weather Conditions expected across portions of
southeast Arizona today and Saturday...

.A weather system will pass through the region today. Strong
winds are expected area-wide today with widespread critical fire
weather conditions likely. Humidity levels in some locations will
be slightly higher than 15 percent, but not enough to temper the
potential spread of ongoing fires. Strong winds and very low
humidity levels are expected east and southeast of Tucson 
Saturday.

AZZ151-152-290300-
/O.CON.KTWC.FW.W.0007.000000T0000Z-170429T0300Z/
/O.CON.KTWC.FW.A.0005.170429T1900Z-170430T0300Z/
Arizona Fire Weather Zone 151
Eastern Pima County-Southeastern Pinal County-
Santa Cruz County-Western Cochise County-
Coronado NF-TDC-Arizona Fire Weather Zone 152
Southern Greenlee County-Central and Eastern Cochise County-
Southern Graham County-Southern San Carlos Apache Nation-
1040 AM MST Fri Apr 28 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING
FOR GUSTY WINDS...LOW HUMIDITY AND VERY HIGH FIRE DANGER FOR FIRE
WEATHER ZONES 151 AND 152...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON
THROUGH SATURDAY EVENING FOR GUSTY WINDS...LOW HUMIDITY AND VERY
HIGH FIRE DANGER FOR FIRE WEATHER ZONES 151 AND 152...

* AFFECTED AREA...All of fire weather zones 151 and 152 for the 
  Warning today. The southeast part of zone 151 and most of 152 
  for the Fire Weather Watch on Saturday. 

* TIMING...The Red Flag warning will be in effect from 10 AM to
  8 PM MST today. The Watch will be in effect Saturday from 
  Noon to 8 PM MST. 

* WINDS...Strong southwest to west winds of 20 to 30 mph with 
  gusts to 45 mph will develop during the morning hours today 
  and last well into the evening. Another round of somewhat 
  lighter winds area forecast Saturday afternoon and evening.

* RELATIVE HUMIDITY...Minimum humidity levels today will range 
  from around 8 to 12 percent western areas to 14 to 21 percent 
  in eastern areas. For Saturday minimum humidity levels will 
  generally be 7 to 12 percent area wide.

* IMPACTS...any fires that develop or are ongoing will have the 
  potential to spread rapidly under the influence of very 
  strong winds.

* FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT 
  WEATHER.GOV/TUCSON AND CLICK ON THE DETAILED HAZARDS TAB.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or are expected to develop. A
combination of strong winds...low relative humidity...and dry
vegetation will create the potential for rapid and erratic fire
growth.

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

Please advise the appropriate officials or fire crews in the
field of the Fire Weather Watch for portions of Southeast
Arizona.

&&

$$

AZZ150-290300-
/O.CON.KTWC.FW.W.0007.000000T0000Z-170429T0300Z/
Arizona Fire Weather Zone 150
Western Pima County-South Central Pinal County-
Tohono O'Odham Nation-TDC-
1040 AM MST Fri Apr 28 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING
FOR GUSTY WINDS...LOW HUMIDITY AND VERY HIGH FIRE DANGER FOR FIRE
WEATHER ZONE 150...

* AFFECTED AREA...Fire weather zone 150.

* TIMING...The Red Flag Warning is from 10 AM to 8 PM MST today.

* WINDS...Strong southwest to west winds of 20 to 25 mph with 
  gusts to 40 mph will develop by late this morning and last 
  well into the evening.

* RELATIVE HUMIDITY...Minimum humidity levels today will range 
  from around 8 to 14 percent.

* IMPACTS...any fires that develop or are ongoing will have the 
  potential to spread rapidly.

* FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT 
  WEATHER.GOV/TUCSON AND CLICK ON THE DETAILED HAZARDS TAB.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or are expected to develop. A
combination of strong winds...low relative humidity...and dry
vegetation will create the potential for rapid and erratic fire
growth.

Please advise the appropriate officials or fire crews in the
field of the Red Flag Warning for portions of Southeast Arizona.

&&

$$


Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
500 
WWUS85 KTWC 282159
RFWTWC

URGENT - FIRE WEATHER MESSAGE
National Weather Service Tucson AZ
259 PM MST Fri Apr 28 2017

AZZ151-152-290600-
/O.UPG.KTWC.FW.A.0005.170429T1900Z-170430T0300Z/
/O.NEW.KTWC.FW.W.0008.170429T1800Z-170430T0300Z/
/O.CON.KTWC.FW.W.0007.000000T0000Z-170429T0300Z/
Arizona Fire Weather Zone 151
Eastern Pima County-Southeastern Pinal County-
Santa Cruz County-Western Cochise County-
Coronado NF-TDC-Arizona Fire Weather Zone 152
Southern Greenlee County-Central and Eastern Cochise County-
Southern Graham County-Southern San Carlos Apache Nation-
259 PM MST Fri Apr 28 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING
FOR GUSTY WINDS...FALLING HUMIDITY AND HIGH FIRE DANGER FOR FIRE 
WEATHER ZONES 151 AND 152... 
...RED FLAG WARNING IS IN EFFECT FROM 11 AM TO 8 PM MST SATURDAY 
FOR LOW HUMIDITY...GUSTY WIND AND VERY HIGH FIRE DANGER ACROSS 
PARTS OF ZONE 151 AND 152...

The National Weather Service in Tucson has issued a Red Flag
Warning, which is in effect from 11 AM to 8 PM MST Saturday. The
Fire Weather Watch is no longer in effect. 

* AFFECTED AREA...The warning through this evening includes all 
  of zones 151 and 152. The Saturday warning covers areas from 
  Safford south in zone 152 and the southeast part of zone 151 
  including the Sawmill Fire area. 

* TIMING...Today's Red Flag warning will expire at 8 pm this
  evening. The Red Flag warning for Saturday will be in effect
  from 11 AM to 8 PM MST. 

* WINDS...Strong southwest to west winds of 20 to 30 mph with
  gusts to 45 mph will continue into the early evening hours then
  gradually ease into the night. Another round of somewhat lighter
  winds will develop Saturday, generally from the northwest at 15
  to 25 mph with gusts to 35 mph well east and south of Tucson.  

* RELATIVE HUMIDITY...Humidity levels will drop through the
  evening hours from west to east reaching their lowest levels of
  the day during the overnight hours. Then the humidity will fall
  further Saturday afternoon dropping to 7 to 12 percent area 
  wide.

* IMPACTS...Any fires that develop or are ongoing will have the 
  potential to spread rapidly under the influence of very strong 
  winds.

* FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT 
  WEATHER.GOV/TUCSON AND CLICK ON THE DETAILED HAZARDS TAB.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or are expected to develop. A
combination of strong winds...low relative humidity...and dry
vegetation will create the potential for rapid and erratic fire
growth.

Please advise the appropriate officials or fire crews in the
field of the Red Flag Warning for portions of Southeast Arizona.

&&

$$

AZZ150-290300-
/O.CON.KTWC.FW.W.0007.000000T0000Z-170429T0300Z/
Arizona Fire Weather Zone 150
Western Pima County-South Central Pinal County-
Tohono O'Odham Nation-TDC-
259 PM MST Fri Apr 28 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING
FOR GUSTY WINDS...LOW HUMIDITY AND VERY HIGH FIRE DANGER FOR FIRE
WEATHER ZONE 150...

* AFFECTED AREA...Fire weather zone 150.

* TIMING...The Red Flag Warning until 8 PM MST this evening. 

* WINDS...Strong southwest to west winds of 20 to 25 mph with
  gusts to 40 mph slowly easing into the evening hours. 

* RELATIVE HUMIDITY...Humidity levels will drop through the
  evening hours to around 8 to 14 percent.

* IMPACTS...Any fires that develop will have the potential to
  spread rapidly this evening. 

* FOR A DETAILED VIEW OF THE HAZARD AREA...VISIT 
  WEATHER.GOV/TUCSON AND CLICK ON THE DETAILED HAZARDS TAB.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or are expected to develop. A
combination of strong winds...low relative humidity...and dry
vegetation will create the potential for rapid and erratic fire
growth.

Please advise the appropriate officials or fire crews in the
field of the Red Flag Warning for portions of Southeast Arizona.

&&

$$

Cerniglia 
Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
022 
WWUS85 KTWC 290255
RFWTWC

URGENT - FIRE WEATHER MESSAGE
National Weather Service Tucson AZ
755 PM MST Fri Apr 28 2017

AZZ151-152-291100-
/O.EXP.KTWC.FW.W.0007.000000T0000Z-170429T0300Z/
/O.CON.KTWC.FW.W.0008.170429T1800Z-170430T0300Z/
Arizona Fire Weather Zone 151
Eastern Pima County-Southeastern Pinal County-
Santa Cruz County-Western Cochise County-
Coronado NF-TDC-Arizona Fire Weather Zone 152
Southern Greenlee County-Central and Eastern Cochise County-
Southern Graham County-Southern San Carlos Apache Nation-
755 PM MST Fri Apr 28 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM MST
SATURDAY FOR GUSTY WINDS...FALLING HUMIDITY AND HIGH FIRE DANGER
FOR FIRE WEATHER ZONES 151 AND 152......RED FLAG WARNING IS IN
EFFECT FROM 11 AM TO 8 PM MST SATURDAY FOR LOW HUMIDITY...GUSTY
WIND AND VERY HIGH FIRE DANGER ACROSS PARTS OF ZONE 151 AND 152...

...RED FLAG WARNING ALLOWED TO EXPIRE AT 8 PM MST THIS EVENING...

* AFFECTED AREA...The Red Flag Warning Saturday covers areas from
  Safford south in zone 152 and the southeast part of zone 151 
  including the Sawmill Fire area. 

* TIMING...The Red Flag warning Saturday will be in effect from 
  11 AM to 8 PM MST.

* WINDS...Sustained 20-foot winds from the northwest at 15 to 25
  mph with gusts to 35 mph east and south of Tucson. 

* RELATIVE HUMIDITY...Humidity levels Saturday afternoon will drop
  into the 7 to 12 percent range area wide.

* IMPACTS...Any fires that develop or are ongoing will have the 
  potential to spread rapidly under the influence of very 
  strong winds.

* For a detailed view of the hazard area...visit weather.gov/Tucson
  and click on the DETAILED HAZARDS TAB 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now...or are expected to develop. A
combination of strong winds...low relative humidity...and dry
vegetation will create the potential for rapid and erratic fire
growth.

Please advise the appropriate officials or fire crews in the
field of the Red Flag Warning for portions of Southeast Arizona.

&&

$$

AZZ150-290400-
/O.EXP.KTWC.FW.W.0007.000000T0000Z-170429T0300Z/
Arizona Fire Weather Zone 150
Western Pima County-South Central Pinal County-
Tohono O'Odham Nation-TDC-
755 PM MST Fri Apr 28 2017

...RED FLAG WARNING WILL EXPIRE AT 8 PM MST THIS EVENING...

Critical fire weather conditions this evening have subsided as
winds have significantly weakened. Therefore...The Red Flag
Warning has been allowed to expire at 8 PM MST. 

$$


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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 27, 1:13 PM MSTBlowing Dust AdvisoryTWCCochise, Graham, Greenlee, Pinal31 hr
Apr 27, 1:13 PM MSTWind AdvisoryTWCCochise, Graham, Greenlee, Pima, Pinal, Santa Cruz31 hr
Apr 27, 1:24 PM MSTFire Weather WatchTWCCochise, Graham, Greenlee, Pima, Pinal, Santa Cruz26 hr

Nearby

Red Flag Warnings in Arizona, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.