Alert archive / Arizona / Tornado Warnings in 2012

Tornado Warning 2, NWS Flagstaff, AZ

July 16, 2012Coconino County, Arizona

NWS Flagstaff, AZ issued this tornado warning at Jul 16, 2012, 2:15 PM MST for Coconino County, Arizona. It was in force for 16 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: Jul 16, 2012, 2:15 PM MST (21:15 UTC)
Expired: Jul 16, 2012, 2:31 PM MST
In force: 16 min
Issued by: NWS Flagstaff, AZ
Area: Storm-based polygon

County Coconino County, AZ

The radar

The Flagstaff radar (KFSX), 124 km from the middle of the area, began a volume at 21:17 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, 9.3 hours before the alert went out and 83 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 84 J/kg
Mixed-layer CIN: -67 J/kg
Mixed-layer LCL: 956 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 73 m²/s²
0-3 km storm-relative helicity: 128 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.

394 
WFUS55 KFGZ 162115
TORFGZ
AZC005-162200-
/O.NEW.KFGZ.TO.W.0002.120716T2115Z-120716T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
215 PM MST MON JUL 16 2012

THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A

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

* UNTIL 300 PM MST

* AT 208 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUES TO
  INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER 
  EAST CENTRAL COCONINO COUNTY...OR 15 MILES NORTHEAST OF WUPATKI 
  VISITOR CENTER...MOVING NORTHEAST AT 15 MPH.

* THE TORNADO WILL BE NEAR...
  RURAL EASTERN COCONINO COUNTY AT 230 PM MST

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. 

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.


&&

LAT...LON 3577 11101 3563 11096 3561 11118 3566 11120
TIME...MOT...LOC 2113Z 243DEG 11KT 3566 11109

$$

DB

1 follow-up statement

091 
WWUS55 KFGZ 162131
SVSFGZ

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
231 PM MST MON JUL 16 2012

AZC005-162140-
/O.CAN.KFGZ.TO.W.0002.000000T0000Z-120716T2200Z/
COCONINO AZ-
231 PM MST MON JUL 16 2012

...THE TORNADO WARNING FOR EAST CENTRAL COCONINO COUNTY IS
CANCELLED...

THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING...LOCATED ABOUT 
15 MILES NORTHEAST OF WUPATKI VISITOR CENTER...HAS WEAKENED. DOPPLER 
RADAR NO LONGER DETECTS ROTATION WITH THIS STORM...THEREFORE THE 
TORNDO WARNING HAS BEEN CANCELLED.


LAT...LON 3577 11101 3563 11096 3561 11118 3566 11120
TIME...MOT...LOC 2130Z 243DEG 11KT 3568 11103

$$

DB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 15, 5:01 PM MST	Areal Flood Advisory	FGZ	Coconino, Navajo	119 min
Jul 15, 5:35 PM MST	Areal Flood Advisory	FGZ	Gila, Navajo	3 hr
Jul 15, 5:43 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	20 min
Jul 15, 5:58 PM MST	Flash Flood Warning	FGZ	Navajo	51 min
Jul 15, 6:07 PM MST	Severe Thunderstorm Warning	FGZ	Coconino, Yavapai	23 min
Jul 15, 6:29 PM MST	Severe Thunderstorm Warning	FGZ	Coconino, Yavapai	16 min
Jul 15, 9:46 PM MST	Severe Thunderstorm Warning	FGZ	Coconino, Gila	14 min
Jul 15, 10:29 PM MST	Areal Flood Advisory	FGZ	Coconino	90 min
Jul 15, 11:29 PM MST	Areal Flood Advisory	FGZ	Coconino, Gila, Yavapai	2 hr
Jul 16, 12:30 AM MST	Areal Flood Advisory	FGZ	Yavapai	87 min
Jul 16, 12:51 AM MST	Areal Flood Advisory	FGZ	Coconino, Yavapai	54 min
Jul 16, 11:52 AM MST	Severe Thunderstorm Warning	FGZ	Coconino	23 min
Jul 16, 1:31 PM MST	Severe Thunderstorm Warning	FGZ	Coconino	29 min
Jul 16, 1:39 PM MST	Tornado Warning	FGZ	Coconino	36 min
Jul 16, 3:40 PM MST	Severe Thunderstorm Warning	FGZ	Coconino	35 min
Jul 16, 3:49 PM MST	Tornado Warning	FGZ	Coconino	26 min
Jul 16, 4:14 PM MST	Tornado Warning	FGZ	Coconino	31 min

Nearby

Tornado Warnings in Arizona, 2012 Every tornado warning in 2012 Tornadoes in 2012

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.