Alert archive / Arizona / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 21, NWS Phoenix, AZ

July 18, 2016Maricopa County, Arizona

NWS Phoenix, AZ issued this severe thunderstorm warning at Jul 18, 2016, 6:10 PM MST for Maricopa County, Arizona. It was in force for 35 min. 3 reports 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
Jul 18, 2016, 6:10 PM MST (01:10 UTC)
Expired
Jul 18, 2016, 6:45 PM MST
In force
35 min
Issued by
NWS Phoenix, AZ
Area
Storm-based polygon

County Maricopa County, AZ

The radar

The Phoenix radar (KIWA), 34 km from the middle of the area, began a volume at 01:13 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
Jul 18, 6:14 PM MSTTSTM WND GST 601 S Guadalupe, AZMEDIUM SIZED TREE UPROOTED ONTO ROAD, ANOTHER TREE BRANCHES BROKEN FROM WIND GUSTS.
Jul 18, 6:25 PM MSTNON-TSTM WND DMG1 Nw Sky Harbor Airport, AZPOWERFUL WINDS PULLED THE ROOF OFF AN APARTMENT COMPLEX AT 26TH STREET + VAN BUREN. CITY OF PHOENIX REPORTED. TIME ESTIMATED. .
Jul 18, 6:55 PM MSTTSTM WND GST 604 Nne Sky Harbor Airpor, AZ8 TREE LIMB BROKEN AND DOWN.

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

The nearest sounding before it

Phoenix, AZ (KPSR), launched 00:00Z, 1.2 hours before the alert went out and 4 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, Phoenix, AZ at 00:00Z on 2016-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 243 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Phoenix, AZ at 00:00Z on 2016-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 square meters per square second.1939Sfc1 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
243 J/kg
Mixed-layer CIN
-95 J/kg
Mixed-layer LCL
2699 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
58 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

240 
WUUS55 KPSR 190110
SVRPSR
AZC013-190145-
/O.NEW.KPSR.SV.W.0021.160719T0110Z-160719T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PHOENIX AZ
610 PM MST MON JUL 18 2016

THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN MARICOPA COUNTY IN SOUTH CENTRAL ARIZONA...

* UNTIL 645 PM MST

* AT 609 PM MST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM
  WAS LOCATED OVER SKY HARBOR AIRPORT...OR NEAR LAVEEN...AND MOVING
  NORTH AT 10 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PHOENIX...CHANDLER...GLENDALE...SCOTTSDALE...TEMPE...
  PARADISE VALLEY...LAVEEN...SKY HARBOR AIRPORT...
  PIESTEWA PEAK PARK...ARIZONA STATE FAIRGROUNDS...
  TEMPE MARKETPLACE...CAMELBACK MOUNTAIN...PAPAGO PARK...
  DOWNTOWN SCOTTSDALE...ARIZONA STATE UNIVERSITY...
  SOUTH MOUNTAIN PARK...SOUTH PHOENIX...DOWNTOWN PHOENIX...
  SALT RIVER INDIAN COMMUNITY AND METRO CENTER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE
HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR
PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE
INTO AREAS WHERE WATER COVERS THE ROAD.

&&

LAT...LON 3326 11194 3331 11213 3360 11223 3362 11179
TIME...MOT...LOC 0109Z 181DEG 17KT 3345 11204 

$$

CK
3 follow-up statements
177 
WWUS55 KPSR 190119
SVSPSR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
619 PM MST MON JUL 18 2016

AZC013-190145-
/O.CON.KPSR.SV.W.0021.000000T0000Z-160719T0145Z/
MARICOPA AZ-
619 PM MST MON JUL 18 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM MST
FOR NORTHEASTERN MARICOPA COUNTY...

AT 619 PM MST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED OVER SKY HARBOR AIRPORT...OR NEAR LAVEEN...MOVING NORTH AT 15
MPH.

LOCATIONS IMPACTED INCLUDE...
PHOENIX...CHANDLER...GLENDALE...SCOTTSDALE...TEMPE...
PARADISE VALLEY...LAVEEN...SKY HARBOR AIRPORT...
ARIZONA STATE UNIVERSITY...SOUTH MOUNTAIN PARK...SOUTH PHOENIX...
DOWNTOWN PHOENIX...SALT RIVER INDIAN COMMUNITY...METRO CENTER...
PIESTEWA PEAK PARK...ARIZONA MILLS MALL...
ARIZONA STATE FAIRGROUNDS...NORTH MOUNTAIN PARK...
TEMPE MARKETPLACE AND CAMELBACK MOUNTAIN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE
HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION
MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS
WHERE WATER COVERS THE ROAD.

THIS STORM HAS A HISTORY OF PRODUCING WIND DAMAGE. THIS IS A VERY
DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND
STAY AWAY FROM WINDOWS!

&&

LAT...LON 3329 11193 3331 11213 3360 11223 3362 11179
TIME...MOT...LOC 0119Z 183DEG 11KT 3345 11203 

$$

CK
422 
WWUS55 KPSR 190128
SVSPSR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
628 PM MST MON JUL 18 2016

AZC013-190145-
/O.CON.KPSR.SV.W.0021.000000T0000Z-160719T0145Z/
MARICOPA AZ-
628 PM MST MON JUL 18 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM MST
FOR NORTHEASTERN MARICOPA COUNTY...

AT 627 PM MST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM
WAS LOCATED OVER SKY HARBOR AIRPORT...OR NEAR PHOENIX...MOVING NORTH
AT 15 MPH.

LOCATIONS IMPACTED INCLUDE...
PHOENIX...GLENDALE...SCOTTSDALE...TEMPE...PARADISE VALLEY...LAVEEN...
SKY HARBOR AIRPORT...ARIZONA STATE UNIVERSITY...SOUTH PHOENIX...
DOWNTOWN PHOENIX...SALT RIVER INDIAN COMMUNITY...METRO CENTER...
PIESTEWA PEAK PARK...ARIZONA MILLS MALL...
ARIZONA STATE FAIRGROUNDS...NORTH MOUNTAIN PARK...
TEMPE MARKETPLACE...CAMELBACK MOUNTAIN...
PAPAGO PARK AND DOWNTOWN SCOTTSDALE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE
HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION
MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR
BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS
WHERE WATER COVERS THE ROAD.

THIS STORM HAS A HISTORY OF PRODUCING WIND DAMAGE. THIS IS A VERY
DANGEROUS SITUATION. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND
STAY AWAY FROM WINDOWS!

&&

LAT...LON 3333 11192 3336 11213 3360 11223 3362 11179
TIME...MOT...LOC 0127Z 183DEG 13KT 3346 11202 

$$

CK
090 
WWUS55 KPSR 190145
SVSPSR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
645 PM MST MON JUL 18 2016

AZC013-190153-
/O.EXP.KPSR.SV.W.0021.000000T0000Z-160719T0145Z/
MARICOPA AZ-
645 PM MST MON JUL 18 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MARICOPA COUNTY
WILL EXPIRE AT 645 PM MST...
                
A NEW SEVERE THUNDERSTORM WARNING HAS BEEN ISSUED TO
REPLACE THIS WARNING THAT IS EXPIRING.

LAT...LON 3333 11192 3336 11213 3360 11223 3362 11179
TIME...MOT...LOC 0141Z 181DEG 17KT 3346 11202 

$$

CK

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 5:03 PM MSTSpecial Weather StatementPSRMaricopa27 min
Jul 18, 5:11 PM MSTDust Storm WarningPSR66 min
Jul 18, 5:15 PM MSTSpecial Weather StatementPSR30 min
Jul 18, 5:29 PM MSTSpecial Weather StatementPSRMaricopa31 min
Jul 18, 5:35 PM MSTAreal Flood AdvisoryPSRMaricopa3 hr
Jul 18, 5:37 PM MSTSevere Thunderstorm WarningPSRMaricopa23 min
Jul 18, 5:44 PM MSTAreal Flood AdvisoryPSRMaricopa, Pinal3 hr
Jul 18, 5:57 PM MSTSpecial Weather StatementPSRMaricopa33 min
Jul 18, 6:16 PM MSTFlash Flood WarningPSRMaricopa3 hr
Jul 18, 6:20 PM MSTSpecial Weather StatementPSR40 min
Jul 18, 6:32 PM MSTSpecial Weather StatementPSRGila43 min
Jul 18, 6:43 PM MSTSevere Thunderstorm WarningPSRMaricopa32 min
Jul 18, 6:59 PM MSTAreal Flood AdvisoryPSRMaricopa3 hr
Jul 18, 7:03 PM MSTSpecial Weather StatementPSRGila42 min
Jul 18, 7:08 PM MSTAreal Flood AdvisoryPSRMaricopa3 hr
Jul 18, 7:26 PM MSTSpecial Weather StatementPSR19 min
Jul 18, 7:47 PM MSTSpecial Weather StatementPSR28 min
Jul 19, 3:25 PM MSTBlowing Dust AdvisoryPSR2 hr
Jul 19, 4:26 PM MSTSpecial Weather StatementPSR49 min
Jul 19, 4:35 PM MSTSpecial Weather StatementPSR40 min
Jul 19, 4:40 PM MSTSevere Thunderstorm WarningPSRGila, Maricopa, Pinal35 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2016Every severe thunderstorm warning in 2016

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.