Alert archive / Arizona / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 2, NWS Tucson, AZ

July 3, 2014Pima County, Arizona

NWS Tucson, AZ issued this severe thunderstorm warning at Jul 3, 2014, 4:58 PM MST for Pima County, Arizona. It was in force for 47 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: Jul 3, 2014, 4:58 PM MST (23:58 UTC)
Expired: Jul 3, 2014, 5:45 PM MST
In force: 47 min
Issued by: NWS Tucson, AZ
Area: Storm-based polygon

County Pima County, AZ

The radar

The Tucson radar (KEMX), 64 km from the middle of the area, began a volume at 00:05 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

Time	Report	Where	Remark
Jul 3, 5:15 PM MST	TSTM WND DMG	3 Nne Oro Valley, AZ	TREE DOWN ORO VALLEY ACROSS N. RANCHO VISTOSO RD NEAR INTERSECTION OF MOORE RD.

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

The nearest sounding before it

Tuscon, AZ (KDMA), launched 12:00Z, 12.0 hours before the alert went out and 25 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 20 J/kg
Mixed-layer CIN: -320 J/kg
Mixed-layer LCL: 2510 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 39 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

359 
WUUS55 KTWC 032358
SVRTWC
AZC019-040045-
/O.NEW.KTWC.SV.W.0002.140703T2358Z-140704T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
458 PM MST THU JUL 3 2014

THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN PIMA COUNTY IN SOUTHEAST ARIZONA...
  THIS INCLUDES THE CITY OF ORO VALLEY...

* UNTIL 545 PM MST

* AT 449 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
  OF 60 MPH.  THIS STORM WAS LOCATED NEAR ORO VALLEY...AND MOVING
  WEST AT 10 MPH.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  CATALINA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEEK SHELTER INDOORS. EXPECT DAMAGING WINDS IN EXCESS OF 60 MPH...
LARGE HAIL...FREQUENT LIGHTNING...AND HEAVY RAIN WITH THIS STORM.

THIS STORM WILL ALSO PRODUCE TORRENTIAL RAIN WHICH COULD LIMIT
VISIBILITIES OR LEAD TO FLOODING. DO NOT ATTEMPT TO DRIVE THROUGH
RAPIDLY FLOWING WATER.

&&

LAT...LON 3233 11104 3250 11109 3251 11078 3230 11083
TIME...MOT...LOC 2359Z 093DEG 7KT 3244 11091

$$

2 follow-up statements

326 
WWUS55 KTWC 040012
SVSTWC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
512 PM MST THU JUL 3 2014

AZC019-040045-
/O.CON.KTWC.SV.W.0002.000000T0000Z-140704T0045Z/
PIMA AZ-
512 PM MST THU JUL 3 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM MST
FOR NORTHEASTERN PIMA COUNTY...

AT 459 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS MOVING THROUGH THE TOWNS OF 
CATALINA AND ORO VALLEY...MOVING WEST AT 10 MPH. VERY HEAVY RAINFALL 
CAN BE EXPECTED TO PRODUCE MINOR STREET FLOODING. STRONG WINDS FROM 
THIS STORM WERE PRODUCING BLOWING DUST...ESPECIALLY ALONG INTERSTATE 
10 NEAR MARANA WITH VISIBILITIES BELOW 1 MILE IN SPOTS. 

LAT...LON 3233 11104 3250 11109 3251 11078 3230 11083
TIME...MOT...LOC 0008Z 093DEG 7KT 3244 11093

$$

424 
WWUS55 KTWC 040044
SVSTWC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
544 PM MST THU JUL 3 2014

AZC019-040051-
/O.EXP.KTWC.SV.W.0002.000000T0000Z-140704T0045Z/
PIMA AZ-
544 PM MST THU JUL 3 2014

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN PIMA COUNTY WILL
EXPIRE AT 545 PM MST...

THE STORM THAT MOVED THROUGH THE ORO VALLEY AREA WAS NO LONGER 
PRODUCING SEVERE WINDS. THUS...THE WARNING WILL EXPIRE ON TIME. 

REMEMBER...RUN OFF ON THE STREETS AND WASHES FROM THE HEAVY RAIN MAY 
CONTINUE TO BE AN ISSUE FOR THE NEXT HOUR.

LAT...LON 3233 11104 3250 11109 3251 11078 3230 11083
TIME...MOT...LOC 0041Z 093DEG 7KT 3244 11101

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 2, 6:23 PM MST	Special Weather Statement	TWC	Santa Cruz	37 min
Jul 3, 9:48 AM MST	Blowing Dust Advisory	TWC	Pima, Pinal, Santa Cruz	9 hr
Jul 3, 1:55 PM MST	Special Weather Statement	TWC		50 min
Jul 3, 3:55 PM MST	Special Weather Statement	TWC	Greenlee	35 min
Jul 3, 4:43 PM MST	Special Weather Statement	TWC	Graham	47 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2014 Every severe thunderstorm warning in 2014

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.