Alert archive / Arizona / Tornado Warnings in 2021

Tornado Warning 2, NWS Flagstaff, AZ

October 5, 2021Gila County, Navajo County, Arizona

NWS Flagstaff, AZ issued this tornado warning at Oct 5, 2021, 3:09 PM MST for Gila County, Navajo County, Arizona. It was in force for 21 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 5, 2021, 3:09 PM MST (22:09 UTC)
Expired: Oct 5, 2021, 3:30 PM MST
In force: 21 min
Issued by: NWS Flagstaff, AZ
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 2.0 in

Counties Gila County, AZ, Navajo County, AZ

The radar

The Flagstaff radar (KFSX), 95 km from the middle of the area, began a volume at 22:11 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Oct 5, 11:46 AM MST	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 10.2 hours before the alert went out and 186 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 986 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 121 m²/s²
0-3 km storm-relative helicity: 140 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

944 
WFUS55 KFGZ 052209
TORFGZ
AZC007-017-052230-
/O.NEW.KFGZ.TO.W.0002.211005T2209Z-211005T2230Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Flagstaff AZ
309 PM MST Tue Oct 5 2021

The National Weather Service in Flagstaff has issued a

* Tornado Warning for...
  Gila County in east central Arizona...
  Navajo County in north central Arizona...

* Until 330 PM MST.
    
* At 308 PM MST, a severe thunderstorm capable of producing a tornado
  was located 19 miles northwest of Hilltop, or 30 miles northeast of
  Roosevelt, moving northeast at 30 mph.

  HAZARD...Tornado and hail up to two inches in diameter.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This tornadic thunderstorm will remain over mainly rural areas of
  Gila and Navajo Counties.

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 outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3383 11074 3410 11063 3396 11034 3383 11052
      3385 11056 3381 11066 3379 11068
TIME...MOT...LOC 2208Z 207DEG 36KT 3384 11064 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.00 IN

$$

NL

2 follow-up statements

700 
WWUS55 KFGZ 052222
SVSFGZ

Severe Weather Statement
National Weather Service Flagstaff AZ
322 PM MST Tue Oct 5 2021

AZC007-017-052230-
/O.CON.KFGZ.TO.W.0002.000000T0000Z-211005T2230Z/
Gila-Navajo-
322 PM MST Tue Oct 5 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 330 PM MST FOR GILA AND
NAVAJO COUNTIES...
    
At 321 PM MST, a severe thunderstorm capable of producing a tornado
was located 16 miles west of Carrizo, or 29 miles southeast of Forest
Lakes, moving northeast at 40 mph.

HAZARD...Tornado and two inch hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornadic thunderstorm will remain over mainly rural areas of
Gila and Navajo Counties.

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 outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3387 11072 3410 11063 3396 11034 3385 11056
      3381 11066 3383 11069
TIME...MOT...LOC 2221Z 207DEG 36KT 3396 11056 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.00 IN

$$

NL

578 
WWUS55 KFGZ 052228
SVSFGZ

Severe Weather Statement
National Weather Service Flagstaff AZ
328 PM MST Tue Oct 5 2021

AZC007-017-052237-
/O.EXP.KFGZ.TO.W.0002.000000T0000Z-211005T2230Z/
Gila-Navajo-
328 PM MST Tue Oct 5 2021

...THE TORNADO WARNING FOR GILA AND NAVAJO COUNTIES WILL EXPIRE AT
330 PM MST...
    
The tornado threat has diminished and the Tornado Warning has been 
cancelled for the storm south of Cibeque. However, large hail and 
damaging winds remain likely and a Severe Thunderstorm Warning 
remains in effect for the area. However large hail and gusty winds 
are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 800 PM MST for
north central and east central Arizona.

LAT...LON 3387 11072 3410 11063 3396 11034 3385 11056
      3381 11066 3383 11069
TIME...MOT...LOC 2227Z 207DEG 36KT 3397 11055 

$$

NL

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 5, 1:24 PM MST	Severe Thunderstorm Warning	FGZ	Gila	51 min
Oct 5, 2:08 PM MST	Severe Thunderstorm Warning	FGZ	Coconino, Gila	37 min
Oct 5, 2:31 PM MST	Tornado Warning	FGZ	Coconino, Gila, Navajo	29 min
Oct 5, 2:47 PM MST	Severe Thunderstorm Warning Considerable damage threat	FGZ	Gila	43 min
Oct 5, 3:30 PM MST	Severe Thunderstorm Warning Considerable damage threat	FGZ	Gila, Navajo	30 min
Oct 5, 4:20 PM MST	Special Weather Statement	FGZ		40 min
Oct 5, 4:27 PM MST	Special Weather Statement	FGZ	Gila	33 min
Oct 5, 4:31 PM MST	Severe Thunderstorm Warning	FGZ	Yavapai	29 min
Oct 5, 4:49 PM MST	Severe Thunderstorm Warning	FGZ	Apache, Navajo	41 min

Nearby

Tornado Warnings in Arizona, 2021 Every tornado warning in 2021 Tornadoes in 2021

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.