Alert archive / Arizona / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 39, NWS Tucson, AZ

July 16, 2017Pinal County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Jul 16, 2017, 6:00 PM MST for Pinal County, Arizona. It was in force for 60 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
Jul 16, 2017, 6:00 PM MST (01:00 UTC)
Expired
Jul 16, 2017, 7:00 PM MST
In force
60 min
Issued by
NWS Tucson, AZ
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Pinal County, AZ

The radar

The Phoenix radar (KIWA), 69 km from the middle of the area, began a volume at 00:59 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

Tuscon, AZ (KDMA), launched 00:00Z, 1.0 hours before the alert went out and 84 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, Tuscon, AZ at 00:00Z on 2017-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 750 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, Tuscon, AZ at 00:00Z on 2017-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -42 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
750 J/kg
Mixed-layer CIN
-63 J/kg
Mixed-layer LCL
2006 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-42 m²/s²
0-3 km storm-relative helicity
-5 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

492 
WUUS55 KTWC 170100
SVRTWC
AZC021-170200-
/O.NEW.KTWC.SV.W.0039.170717T0100Z-170717T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tucson AZ
600 PM MST SUN JUL 16 2017

The National Weather Service in Tucson has issued a

* Severe Thunderstorm Warning for...
  Central Pinal County in southeastern Arizona...

* Until 700 PM MST

* At 600 PM MST, a severe thunderstorm was located 12 miles southwest
  of Kearny, or 17 miles east of Florence, moving southwest at 10
  mph.

  HAZARD...60 mph wind gusts. 

  SOURCE...Radar indicated. 

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

* Locations impacted include...
  Cactus Forest.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3287 11088 3272 11122 3293 11141 3316 11106
TIME...MOT...LOC 0100Z 065DEG 10KT 3296 11109 

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

Leins
1 follow-up statement
438 
WWUS55 KTWC 170132
SVSTWC

Severe Weather Statement
National Weather Service Tucson AZ
632 PM MST SUN JUL 16 2017

AZC021-170200-
/O.CON.KTWC.SV.W.0039.000000T0000Z-170717T0200Z/
Pinal-
632 PM MST SUN JUL 16 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM MST
FOR CENTRAL PINAL COUNTY...

At 632 PM MST, a severe thunderstorm was located 14 miles southeast
of Florence, moving southwest at 10 mph.

HAZARD...60 mph wind gusts. 

SOURCE...Radar indicated. 

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

Locations impacted include...
Cactus Forest.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3287 11088 3272 11122 3293 11141 3316 11106
TIME...MOT...LOC 0132Z 063DEG 8KT 3293 11115 

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

Leins

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 16, 5:35 PM MSTSpecial Weather StatementTWCPinal55 min
Jul 16, 6:31 PM MSTAreal Flood AdvisoryTWCPinal3 hr
Jul 16, 6:34 PM MSTAreal Flood AdvisoryTWCPima56 min
Jul 16, 6:36 PM MSTSpecial Weather StatementTWC39 min
Jul 16, 6:39 PM MSTSpecial Weather StatementTWC21 min
Jul 16, 6:42 PM MSTSpecial Weather StatementTWCPima48 min
Jul 16, 6:59 PM MSTSpecial Weather StatementTWCPinal61 min
Jul 16, 7:25 PM MSTSpecial Weather StatementTWC65 min
Jul 16, 7:27 PM MSTSpecial Weather StatementTWC33 min
Jul 16, 8:12 PM MSTSpecial Weather StatementTWCPima33 min
Jul 16, 8:56 PM MSTFlash Flood WarningTWCGraham3 hr
Jul 16, 9:04 PM MSTAreal Flood AdvisoryTWCPima, Pinal3 hr
Jul 16, 9:23 PM MSTSpecial Weather StatementTWCGraham67 min
Jul 16, 10:34 PM MSTAreal Flood AdvisoryTWCPima, Pinal3 hr
Jul 17, 12:35 AM MSTAreal Flood AdvisoryTWCPinal3 hr
Jul 17, 4:41 AM MSTFlash Flood WarningTWCSanta Cruz3 hr
Jul 17, 7:47 AM MSTAreal Flood AdvisoryTWCSanta Cruz118 min
Jul 17, 1:01 PM MSTSpecial Weather StatementTWC59 min
Jul 17, 1:04 PM MSTSpecial Weather StatementTWCSanta Cruz41 min
Jul 17, 1:58 PM MSTAreal Flood AdvisoryTWCCochise, Pima2 hr
Jul 17, 2:03 PM MSTFlash Flood WarningTWCPima117 min
Jul 17, 2:07 PM MSTFlash Flood WarningTWCPima, Pinal113 min
Jul 17, 2:12 PM MSTSevere Thunderstorm WarningTWCPinal33 min
Jul 17, 2:16 PM MSTAreal Flood AdvisoryTWCCochise119 min
Jul 17, 3:00 PM MSTFlash Flood WarningTWCPima, Pinal2 hr
Jul 17, 3:09 PM MSTSevere Thunderstorm WarningTWCPima, Pinal51 min
Jul 17, 3:17 PM MSTFlash Flood WarningTWCPima118 min
Jul 17, 3:40 PM MSTSevere Thunderstorm WarningTWCGraham23 min
Jul 17, 4:00 PM MSTAreal Flood AdvisoryTWCPima, Pinal5 hr
Jul 17, 4:01 PM MSTFlash Flood WarningTWCPima119 min
Jul 17, 4:02 PM MSTSevere Thunderstorm WarningTWCGraham, Pinal28 min
Jul 17, 4:54 PM MSTSpecial Weather StatementTWCPinal51 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2017Every severe thunderstorm warning in 2017

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.