Alert archive / Arizona / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 2, NWS Phoenix, AZ

January 31, 2016Gila County, Maricopa County, Arizona

NWS Phoenix, AZ issued this severe thunderstorm warning at Jan 31, 2016, 10:43 PM MST for Gila County, Maricopa County, Arizona. It was in force for 32 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
Jan 31, 2016, 10:43 PM MST (05:43 UTC)
Expired
Jan 31, 2016, 11:15 PM MST
In force
32 min
Issued by
NWS Phoenix, AZ
Area
Storm-based polygon

Counties Gila County, AZ, Maricopa County, AZ

The radar

The Phoenix radar (KIWA), 40 km from the middle of the area, began a volume at 05:44 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, 5.7 hours before the alert went out and 176 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 2016-02-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 5 joules per kilogram.LCLLFCEL10008507005003002001001 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 2016-02-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 260 square meters per square second.1939587897117136Sfc1 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
5 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
890 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
260 m²/s²
0-3 km storm-relative helicity
387 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

789 
WUUS55 KPSR 010543
SVRPSR
AZC007-013-010615-
/O.NEW.KPSR.SV.W.0002.160201T0543Z-160201T0615Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PHOENIX AZ
1043 PM MST SUN JAN 31 2016

THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A

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

* UNTIL 1115 PM MST

* AT 1042 PM MST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM
  WAS LOCATED NEAR SCOTTSDALE AIRPORT...OR NEAR PARADISE VALLEY...AND
  MOVING NORTHEAST AT 55 MPH.

* LOCATIONS IMPACTED INCLUDE...
  PHOENIX...SCOTTSDALE...FOUNTAIN HILLS...PARADISE VALLEY...ROUND VALLEY...
  SYCAMORE CREEK...BALLANTINE TRAILHEAD...SUGARLOAF MOUNTAIN...
  SUNFLOWER...GOLDFIELD RANCH...MCDOWELL MOUNTAIN PARK...SALT RIVER
  INDIAN COMMUNITY...RIO VERDE...SCOTTSDALE AIRPORT...DOWNTOWN
  SCOTTSDALE...TONTO BASIN AND FORT MCDOWELL.

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 3345 11191 3360 11203 3400 11148 3374 11124
TIME...MOT...LOC 0542Z 238DEG 55KT 3357 11189 

$$

CK
2 follow-up statements
729 
WWUS55 KPSR 010558
SVSPSR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
1058 PM MST SUN JAN 31 2016

AZC007-013-010615-
/O.CON.KPSR.SV.W.0002.000000T0000Z-160201T0615Z/
MARICOPA AZ-GILA AZ-
1058 PM MST SUN JAN 31 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM MST
FOR NORTHEASTERN MARICOPA AND WESTERN GILA COUNTIES...

AT 1057 PM MST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED OVER RIO VERDE...OR 7 MILES NORTHEAST OF FOUNTAIN HILLS...
MOVING NORTHEAST AT 55 MPH.

LOCATIONS IMPACTED INCLUDE...
SCOTTSDALE...FOUNTAIN HILLS...SYCAMORE CREEK...BALLANTINE TRAILHEAD...
ROUND VALLEY...SUGARLOAF MOUNTAIN...SUNFLOWER...GOLDFIELD RANCH...
MCDOWELL MOUNTAIN PARK...RIO VERDE...TONTO BASIN AND FORT MCDOWELL.

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 3352 11174 3373 11186 3400 11148 3374 11124
TIME...MOT...LOC 0557Z 235DEG 53KT 3370 11168 

$$

CK
404 
WWUS55 KPSR 010611
SVSPSR

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE PHOENIX AZ
1111 PM MST SUN JAN 31 2016

AZC007-013-010620-
/O.EXP.KPSR.SV.W.0002.000000T0000Z-160201T0615Z/
MARICOPA AZ-GILA AZ-
1111 PM MST SUN JAN 31 2016

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MARICOPA AND
WESTERN GILA COUNTIES WILL EXPIRE AT 1115 PM MST...
        
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS AND WILL EXIT THE WARNED AREA BY 1115 PM. THEREFORE THE
WARNING WILL BE ALLOWED TO EXPIRE.

LAT...LON 3352 11174 3373 11186 3400 11148 3374 11124
TIME...MOT...LOC 0608Z 238DEG 55KT 3370 11168 

$$

CK

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 31, 10:06 PM MSTSpecial Weather StatementPSRMaricopa84 min
Jan 31, 10:17 PM MSTSevere Thunderstorm WarningPSRMaricopa28 min
Jan 31, 10:32 PM MSTSpecial Weather StatementPSR43 min
Jan 31, 10:48 PM MSTBlowing Dust AdvisoryPSR67 min
Jan 31, 11:09 PM MSTSpecial Weather StatementPSRPinal51 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.