Alert archive / Arizona / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 1, NWS Phoenix, AZ

January 25, 2021Maricopa County, Arizona

NWS Phoenix, AZ issued this severe thunderstorm warning at Jan 25, 2021, 1:28 PM MST for Maricopa County, Arizona. It was in force for 32 min. 8 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
Jan 25, 2021, 1:28 PM MST (20:28 UTC)
Expired
Jan 25, 2021, 2:00 PM MST
In force
32 min
Issued by
NWS Phoenix, AZ
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Maricopa County, AZ

The radar

The Phoenix radar (KIWA), 63 km from the middle of the area, began a volume at 20:27 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
Jan 25, 1:29 PM MSTTSTM WND DMGLitchfield Park, AZ***DELAYED REPORT*** TWITTER POST SHOWED SUBSTANTIAL TREE DAMAGE AT THE WIGWAM GOLF COURSE WITH NUMEROUS LARGE TREE BRANCHES SNAPPED AND SEVERAL TREES UPROOTED DUE TO ESTIMATED LOCALIZED 70 MPH WINDS. TIME ESTIMATED BY RADAR.
Jan 25, 1:36 PM MSTTSTM WND DMG1 Ne Youngtown, AZ***DELAYED REPORT*** MEDIA REPORTS SHOW A FEW HOMES IN SUN CITY WITH ROOF SHINGLES RIPPED OFF ALONG WITH A COUPLE PALO VERDE TREES AND FENCING DOWN DUE TO ESTIMATED 60 MPH WINDS. TIME ESTIMATED BY RADAR.
Jan 25, 1:40 PM MSTTSTM WND DMG6 Ssw Glendale, AZDELAYED REPORT. FACEBOOK FOLLOWER REPORTED RIPPED OFF ROOFING SHINGLES IN THEIR YARD ON 83RD AND CAMELBACK.
Jan 25, 1:41 PM MSTTSTM WND DMG6 Ene Glendale, AZDAMAGE TO ROOF WITH ONE WIND TURBINE BLOWN OFF ROOF.
Jan 25, 1:43 PM MSTHAIL 0.251 Nne Glendale, AZDELAYED REPORT. TRAINED SPOTTER REPORTED THAT NEIGHBORHOOD STREET WAS COVERED IN PEA SIZE HAIL.
Jan 25, 1:44 PM MSTHAIL 0.251 Se Peoria, AZDELAYED REPORT. TRAINED SPOTTER REPORTED PEA SIZE HAIL IN PEORIA.
Jan 25, 1:45 PM MSTTSTM WND DMG4 Ene Glendale, AZLARGE TREE CAUSED DAMAGE TO CARPORT.
Jan 25, 1:51 PM MSTHAIL 0.252 Ssw Peoria, AZDELAYED REPORT. TRAINED SPOTTER REPORTED PEA SIZE HAIL COVERING THE GROUND.

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 12:00Z, 8.5 hours before the alert went out and 194 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 12:00Z on 2021-01-25Temperature 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 12:00Z on 2021-01-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
613 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

065 
WUUS55 KPSR 252028
SVRPSR
AZC013-252100-
/O.NEW.KPSR.SV.W.0001.210125T2028Z-210125T2100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Phoenix AZ
128 PM MST Mon Jan 25 2021

The National Weather Service in Phoenix has issued a

* Severe Thunderstorm Warning for...
  Maricopa County in south central Arizona...

* Until 200 PM MST.

* At 127 PM MST, severe thunderstorms were located along a line
  extending from Litchfield Park to near Goodyear to near Estrella
  Mountain Ranch, moving northeast at 50 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Phoenix, Glendale, Avondale, Goodyear, El Mirage, Tolleson,
  Youngtown, Sun City, Waddell, Cashion, Litchfield Park, Glendale
  Sports Complex, Luke AFB, Phoenix International Raceway and
  Downtown Peoria.

* This includes the following highways...
  AZ Interstate 10 between mile markers 125 and 141.
  AZ Interstate 17 between mile markers 205 and 212.
  US Highway 60 between mile markers 145 and 159.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3371 11218 3359 11208 3337 11217 3331 11248
      3345 11243 3355 11245
TIME...MOT...LOC 2027Z 241DEG 44KT 3350 11239 3345 11238 3337 11242 

HAIL...<.75IN
WIND...60MPH
 
$$

18
1 follow-up statement
573 
WWUS55 KPSR 252040
SVSPSR

Severe Weather Statement
National Weather Service Phoenix AZ
140 PM MST Mon Jan 25 2021

AZC013-252100-
/O.CON.KPSR.SV.W.0001.000000T0000Z-210125T2100Z/
Maricopa AZ-
140 PM MST Mon Jan 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM MST
FOR MARICOPA COUNTY...

At 140 PM MST, severe thunderstorms were located along a line
extending from Sun City to Glendale to near Tolleson to near Phoenix
International Raceway, moving east at 55 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Phoenix, Glendale, Avondale, El Mirage, Tolleson, Youngtown, Sun
City, Waddell, Cashion, Litchfield Park, Glendale Sports Complex,
Luke AFB, Phoenix International Raceway, Downtown Peoria and
Arrowhead Mall.

This includes the following highways...
AZ Interstate 10 between mile markers 130 and 141.
AZ Interstate 17 between mile markers 205 and 212.
US Highway 60 between mile markers 145 and 159.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3371 11218 3359 11208 3337 11217 3333 11239
      3346 11234 3358 11240
TIME...MOT...LOC 2040Z 250DEG 47KT 3364 11226 3352 11221 3343 11221
3336 11226

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

18

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 24, 5:59 PM MSTSpecial Weather StatementPSR31 min
Jan 25, 10:16 AM MSTSpecial Weather StatementPSRYuma44 min
Jan 25, 11:01 AM MSTSpecial Weather StatementPSRYuma44 min
Jan 25, 11:19 AM MSTSpecial Weather StatementPSRLa Paz41 min
Jan 25, 11:53 AM MSTSpecial Weather StatementPSRYuma52 min
Jan 25, 12:22 PM MSTSpecial Weather StatementPSRMaricopa53 min
Jan 25, 12:40 PM MSTFreeze WatchPSRMaricopa14 hr
Jan 25, 12:40 PM MSTHard Freeze WatchPSRGila, Pinal14 hr
Jan 25, 1:06 PM MSTSpecial Weather StatementPSRMaricopa39 min
Jan 25, 1:08 PM MSTSpecial Weather StatementPSRMaricopa52 min
Jan 25, 1:36 PM MSTSevere Thunderstorm WarningPSRMaricopa24 min
Jan 25, 1:47 PM MSTSpecial Weather StatementPSR43 min
Jan 25, 1:50 PM MSTSevere Thunderstorm WarningPSRMaricopa25 min
Jan 25, 1:53 PM MSTSpecial Weather StatementPSRMaricopa52 min
Jan 25, 2:11 PM MSTSpecial Weather StatementPSR34 min
Jan 25, 2:40 PM MSTSpecial Weather StatementPSRPinal50 min
Jan 25, 2:46 PM MSTSpecial Weather StatementPSRGila14 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2021Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.