Alert archive / Arizona / Tornado Warnings in 2015

Tornado Warning 2, NWS Flagstaff, AZ

August 9, 2015Coconino County, Arizona

NWS Flagstaff, AZ issued this tornado warning at Aug 9, 2015, 2:22 PM MST for Coconino County, Arizona. It was in force for 23 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 9, 2015, 2:22 PM MST (21:22 UTC)
Expired
Aug 9, 2015, 2:45 PM MST
In force
23 min
Issued by
NWS Flagstaff, AZ
Area
Storm-based polygon

County Coconino County, AZ

The radar

The Flagstaff radar (KFSX), 120 km from the middle of the area, began a volume at 21:26 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

Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 9.4 hours before the alert went out and 41 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 2015-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 297 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Flgstf/Belemont, AZ at 12:00Z on 2015-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 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
297 J/kg
Mixed-layer CIN
-34 J/kg
Mixed-layer LCL
1242 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

396 
WFUS55 KFGZ 092122
TORFGZ
AZC005-092145-
/O.NEW.KFGZ.TO.W.0002.150809T2122Z-150809T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
222 PM MST SUN AUG 9 2015

THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL COCONINO COUNTY IN NORTH CENTRAL ARIZONA...

* UNTIL 245 PM MST
    
* AT 222 PM MST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 16
  MILES NORTHWEST OF BONITO CAMPGROUND AT SUNSET CRATER...OR 27 MILES
  NORTH OF FLAGSTAFF...AND MOVING EAST AT 20 MPH.

IN ADDITION TO A TORNADO...PING PONG BALL SIZE IS EXPECTED WITH THIS
STORM.

* LOCATIONS IMPACTED INCLUDE...
  WESTERN PORTIONS OF WUPATKI NATIONAL MONUMENT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE IN A MOBILE
HOME OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3552 11178 3564 11182 3568 11150 3554 11149
TIME...MOT...LOC 2122Z 264DEG 16KT 3558 11170 

$$
2 follow-up statements
104 
WWUS55 KFGZ 092133
SVSFGZ

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
233 PM MST SUN AUG 9 2015

AZC005-092145-
/O.CON.KFGZ.TO.W.0002.000000T0000Z-150809T2145Z/
COCONINO-
233 PM MST SUN AUG 9 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 PM MST FOR CENTRAL
COCONINO COUNTY...
    
AT 232 PM MST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 14 MILES
SOUTHWEST OF GRAY MOUNTAIN...OR 27 MILES NORTH OF FLAGSTAFF...MOVING
EAST AT 20 MPH.

LOCATIONS IMPACTED INCLUDE...
WESTERN PORTIONS OF WUPATKI NATIONAL MONUMENT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE IN A MOBILE
HOME OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3552 11174 3565 11177 3568 11150 3554 11149
TIME...MOT...LOC 2132Z 264DEG 16KT 3558 11164 

$$
032 
WWUS55 KFGZ 092145
SVSFGZ

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
245 PM MST SUN AUG 9 2015

AZC005-092153-
/O.EXP.KFGZ.TO.W.0002.000000T0000Z-150809T2145Z/
COCONINO-
245 PM MST SUN AUG 9 2015

...THE TORNADO WARNING FOR CENTRAL COCONINO COUNTY WILL EXPIRE AT 245
PM MST...
    
THE TORNADO THREAT HAS DIMINISHED...THEREFORE THE TORNADO WARNING 
WILL BE ALLOWED TO EXPIRE. HOWEVER...LARGE HAIL TO THE SIZE OF PING 
PONG BALLS AND DAMAGING WIND GUSTS TO 70 MPH REMAIN LIKELY AND A 
SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR THE AREA.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT 
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE 
IN FLAGSTAFF.

LAT...LON 3552 11174 3565 11177 3568 11150 3554 11149
TIME...MOT...LOC 2142Z 264DEG 16KT 3558 11164 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 6:35 PM MSTSpecial Weather StatementFGZNavajo40 min
Aug 8, 7:18 PM MSTSpecial Weather StatementFGZNavajo42 min
Aug 9, 11:26 AM MSTAreal Flood AdvisoryFGZYavapai2 hr
Aug 9, 12:26 PM MSTSpecial Weather StatementFGZYavapai34 min
Aug 9, 12:58 PM MSTSevere Thunderstorm WarningFGZCoconino, Navajo47 min
Aug 9, 2:05 PM MSTSpecial Weather StatementFGZCoconino25 min
Aug 9, 2:10 PM MSTSevere Thunderstorm WarningFGZCoconino50 min
Aug 9, 2:39 PM MSTSpecial Weather StatementFGZ36 min
Aug 9, 2:42 PM MSTSevere Thunderstorm WarningFGZCoconino33 min
Aug 9, 3:00 PM MSTSevere Thunderstorm WarningFGZCoconino21 min
Aug 9, 3:29 PM MSTFlash Flood WarningFGZCoconino3 hr

Nearby

Tornado Warnings in Arizona, 2015Every tornado warning in 2015Tornadoes in 2015

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.