Alert archive / Arizona / Tornado Warnings in 2012
Tornado Warning 5, NWS Flagstaff, AZ
NWS Flagstaff, AZ issued this tornado warning at Oct 12, 2012, 3:08 AM MDT for Navajo County, Arizona. It was in force for 36 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
- Oct 12, 2012, 3:08 AM MDT (09:08 UTC)
- Expired
- Oct 12, 2012, 3:44 AM MDT
- In force
- 36 min
- Issued by
- NWS Flagstaff, AZ
- Area
- Storm-based polygon
County Navajo County, AZ
The radar
The Flagstaff radar (KFSX), 77 km from the middle of the area, began a volume at 09:12 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 00:00Z, 9.1 hours before the alert went out and 150 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.
- Mixed-layer CAPE
- 29 J/kg
- Mixed-layer CIN
- -9 J/kg
- Mixed-layer LCL
- 1607 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 141 m²/s²
- 0-3 km storm-relative helicity
- 371 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
034 WFUS55 KFGZ 120908 TORFGZ AZC017-121000- /O.NEW.KFGZ.TO.W.0005.121012T0908Z-121012T1000Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE FLAGSTAFF AZ 208 AM MST FRI OCT 12 2012 THE NATIONAL WEATHER SERVICE IN FLAGSTAFF HAS ISSUED A * TORNADO WARNING FOR... SOUTH CENTRAL NAVAJO COUNTY IN NORTHEAST ARIZONA... * UNTIL 300 AM MST * AT 207 AM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR ARIPINE... OR 21 MILES WEST OF SHOW LOW...MOVING NORTH AT 65 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CLAY SPRINGS PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS TORNADO WARNING REPLACES THE SEVERE THUNDERSTORM WARNING PREVIOUSLY IN EFFECT FOR THIS STORM. 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. IF YOU ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS. 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. IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. && LAT...LON 3483 11042 3475 11011 3423 11032 3428 11053 TIME...MOT...LOC 0908Z 196DEG 55KT 3436 11039 $$ TC
2 follow-up statements
041
WWUS55 KFGZ 120928
SVSFGZ
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
228 AM MST FRI OCT 12 2012
AZC017-121000-
/O.CON.KFGZ.TO.W.0005.000000T0000Z-121012T1000Z/
NAVAJO AZ-
228 AM MST FRI OCT 12 2012
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 300 AM MST FOR SOUTH
CENTRAL NAVAJO COUNTY...
AT 221 AM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO. THIS TORNADO WAS LOCATED OVER SOUTH CENTRAL
NAVAJO COUNTY...OR 28 MILES NORTHWEST OF SHOW LOW...MOVING NORTH AT
65 MPH. THIS STORM WILL CROSS OVER SR 377 NEAR MILE MARKER 13 TO 16.
THE TORNADO WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
NAVAHO COUNTY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
&&
LAT...LON 3450 11026 3452 11048 3459 11047 3483 11042
3477 11020
TIME...MOT...LOC 0925Z 188DEG 58KT 3462 11035
$$
TC309
WWUS55 KFGZ 120944
SVSFGZ
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE FLAGSTAFF AZ
244 AM MST FRI OCT 12 2012
AZC017-120951-
/O.CAN.KFGZ.TO.W.0005.000000T0000Z-121012T1000Z/
NAVAJO AZ-
244 AM MST FRI OCT 12 2012
...THE TORNADO WARNING FOR SOUTH CENTRAL NAVAJO COUNTY IS
CANCELLED...
THE SEVERE THUNDERSTORM WHICH PROMPTED THE TORNADO WARNING HAS
WEAKENED. THEREFORE THE TORNADO WARNING HAS BEEN CANCELLED.
THIS STORM WILL PASS BETWEEN JOSEPH CITY AND HOLBROOK BETWEEN 245 AM
MST AND 255 AM MST. THIS STORM IS CAPABLE OF PRODUCING SMALL HAIL
AND WIND GUST FROM 35 TO 45 MPH.
LAT...LON 3450 11026 3452 11048 3459 11047 3483 11042
3477 11020
TIME...MOT...LOC 0941Z 191DEG 53KT 3484 11028
$$The office that day
Everything else NWS Flagstaff, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 11, 10:03 PM MDT | Severe Thunderstorm Warning | FGZ | Gila | 27 min |
| Oct 11, 10:24 PM MDT | Severe Thunderstorm Warning | FGZ | Coconino, Gila, Navajo | 36 min |
| Oct 12, 2:43 AM MDT | Severe Thunderstorm Warning | FGZ | Gila, Navajo | 32 min |
Nearby
Tornado Warnings in Arizona, 2012Every tornado warning in 2012Tornadoes 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.