Alert archive / Arizona / Tornado Warnings in 2019

Tornado Warning 2, NWS Phoenix, AZ

November 29, 2019Maricopa County, Arizona

NWS Phoenix, AZ issued this tornado warning at Nov 29, 2019, 4:01 AM MST for Maricopa County, Arizona. It was in force for 14 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Nov 29, 2019, 4:01 AM MST (11:01 UTC)
Expired
Nov 29, 2019, 4:15 AM MST
In force
14 min
Issued by
NWS Phoenix, AZ
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.0 in

County Maricopa County, AZ

The radar

The Phoenix radar (KIWA), 44 km from the middle of the area, began a volume at 11:03 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
Nov 29, 4:01 AM MSTTORNADO6 E Deer Valley, AZ*** DELAYED REPORT *** MINOR DAMAGE REPORTED BY PUBLIC IN SOCIAL MEDIA ALONG BEARDSLEY RD. TIME BASED ON RADAR DATA.

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

The nearest sounding before it

Flgstf/Belemont, AZ (KFGZ), launched 00:00Z, 11.0 hours before the alert went out and 178 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 00:00Z on 2019-11-29Temperature 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 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 00:00Z on 2019-11-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 451 square meters per square second.1939587897117136156Sfc1 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
669 m above ground
0-6 km bulk shear
101 kt
0-1 km storm-relative helicity
451 m²/s²
0-3 km storm-relative helicity
550 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

291 
WFUS55 KPSR 291101
TORPSR
AZC013-291115-
/O.NEW.KPSR.TO.W.0002.191129T1101Z-191129T1115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Phoenix AZ
401 AM MST Fri Nov 29 2019

The National Weather Service in Phoenix has issued a

* Tornado Warning for...
  Maricopa County in south central Arizona...

* Until 415 AM MST.
    
* At 400 AM MST, a severe thunderstorm capable of producing a tornado
  was located near Scottsdale Airport, or near Paradise Valley,
  moving northeast at 65 mph.

  HAZARD...Tornado.

  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 dangerous storm will be near...
  Fountain Hills around 410 AM MST.
  McDowell Mountain Park and Rio Verde around 415 AM MST.

* This includes the following highways...
  AZ Route 51 between mile markers 8 and 15.
  AZ Route 101 between mile markers 29 and 42.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This Tornado Warning replaces the Severe Thunderstorm Warning issued
for the same area.

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3351 11199 3363 11209 3385 11178 3367 11164
TIME...MOT...LOC 1100Z 233DEG 55KT 3361 11198 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

CK
2 follow-up statements
055 
WWUS55 KPSR 291109
SVSPSR

Severe Weather Statement
National Weather Service Phoenix AZ
409 AM MST Fri Nov 29 2019

AZC013-291115-
/O.CON.KPSR.TO.W.0002.000000T0000Z-191129T1115Z/
Maricopa AZ-
409 AM MST Fri Nov 29 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 AM MST FOR MARICOPA
COUNTY...
    
At 408 AM MST, a severe thunderstorm capable of producing a tornado
was located over Scottsdale, moving northeast at 60 mph.

HAZARD...Tornado.

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 dangerous storm will be near...
  McDowell Mountain Park around 415 AM MST.
  Scottsdale and Rio Verde around 420 AM MST.

This includes AZ Route 101 between mile markers 33 and 41.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3357 11191 3370 11198 3385 11178 3367 11164
TIME...MOT...LOC 1108Z 231DEG 52KT 3368 11189 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

CK
126 
WWUS55 KPSR 291111
SVSPSR

Severe Weather Statement
National Weather Service Phoenix AZ
411 AM MST Fri Nov 29 2019

AZC013-291121-
/O.EXP.KPSR.TO.W.0002.000000T0000Z-191129T1115Z/
Maricopa AZ-
411 AM MST Fri Nov 29 2019

...THE TORNADO WARNING FOR MARICOPA COUNTY WILL EXPIRE AT 415 AM
MST...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.  However gusty
winds and heavy rain are still possible with this thunderstorm.

LAT...LON 3357 11191 3370 11198 3385 11178 3367 11164
TIME...MOT...LOC 1111Z 233DEG 55KT 3368 11189 

$$

CK

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 28, 5:51 PM MSTSevere Thunderstorm WarningPSRLa Paz24 min
Nov 28, 6:15 PM MSTSevere Thunderstorm WarningPSRLa Paz45 min
Nov 28, 6:16 PM MSTSevere Thunderstorm WarningPSRLa Paz44 min
Nov 28, 7:30 PM MSTAreal Flood AdvisoryPSRLa Paz4 hr
Nov 28, 7:52 PM MSTFlash Flood WarningPSRLa Paz, Yuma8 hr
Nov 28, 7:59 PM MSTFlash Flood WarningPSRLa Paz, Yuma6 hr
Nov 28, 9:53 PM MSTFlash Flood WarningPSRLa Paz, Yuma4 hr
Nov 28, 11:20 PM MSTAreal Flood AdvisoryPSRLa Paz, Yuma4 hr
Nov 28, 11:36 PM MSTFlash Flood WarningPSRLa Paz4 hr
Nov 29, 12:04 AM MSTFlash Flood WarningPSRLa Paz, Maricopa5 hr
Nov 29, 12:27 AM MSTAreal Flood AdvisoryPSRYuma4 hr
Nov 29, 1:24 AM MSTFlash Flood WarningPSRMaricopa7 hr
Nov 29, 2:01 AM MSTFlash Flood WarningPSRMaricopa, Yuma5 hr
Nov 29, 2:34 AM MSTSevere Thunderstorm WarningPSRMaricopa26 min
Nov 29, 2:42 AM MSTFlash Flood WarningPSRMaricopa6 hr
Nov 29, 2:55 AM MSTAreal Flood AdvisoryPSRMaricopa3 hr
Nov 29, 3:27 AM MSTFlash Flood WarningPSRMaricopa5 hr
Nov 29, 3:45 AM MSTSevere Thunderstorm WarningPSRMaricopa, Pinal30 min
Nov 29, 4:18 AM MSTAreal Flood AdvisoryPSRMaricopa, Pinal3 hr
Nov 29, 4:41 AM MSTSevere Thunderstorm WarningPSRMaricopa, Pinal34 min
Nov 29, 4:44 AM MSTTornado WarningPSRMaricopa, Pinal12 min
Nov 29, 4:57 AM MSTAreal Flood WarningPSRLa Paz, Maricopa, Yuma6 hr
Nov 29, 5:07 AM MSTFlash Flood WarningPSRGila, Maricopa, Pinal6 hr
Nov 29, 5:12 AM MSTAreal Flood AdvisoryPSRMaricopa, Pinal3 hr
Nov 29, 5:18 AM MSTSevere Thunderstorm WarningPSRPinal27 min
Nov 29, 7:12 AM MSTAreal Flood AdvisoryPSRMaricopa, Pinal3 hr
Nov 29, 7:22 AM MSTFlash Flood WarningPSRGila, Pinal4 hr
Nov 29, 8:10 AM MSTAreal Flood WarningPSRMaricopa6 hr
Nov 29, 8:33 AM MSTAreal Flood WarningPSRMaricopa6 hr
Nov 29, 8:53 AM MSTAreal Flood WarningPSRGila36 hr
Nov 29, 11:14 AM MSTAreal Flood WarningPSRGila, Maricopa, Pinal3 hr
Nov 29, 1:31 PM MSTSpecial Weather StatementPSRPinal29 min
Nov 29, 2:12 PM MSTSpecial Weather StatementPSRPinal33 min
Nov 29, 2:45 PM MSTSpecial Weather StatementPSRPinal30 min

Nearby

Tornado Warnings in Arizona, 2019Every tornado warning in 2019Tornadoes in 2019

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.