Severe Thunderstorm Warning 21, NWS Tucson, AZ

511 
WWUS55 KTWC 172233
SVSTWC

Severe Weather Statement
National Weather Service Tucson AZ
333 PM MST TUE JUL 17 2018

AZC019-172300-
/O.CON.KTWC.SV.W.0021.000000T0000Z-180717T2300Z/
Pima-
333 PM MST TUE JUL 17 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM MST
FOR SOUTHERN PIMA COUNTY...

At 332 PM MST, a severe thunderstorm was located 26 miles southeast
of Sells, moving northwest at 10 mph.

HAZARD...70 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

Locations impacted include...
Newfields and San Miguel. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3156 11179 3165 11179 3163 11157 3149 11156
TIME...MOT...LOC 2232Z 116DEG 7KT 3158 11167 

HAIL...1.00IN
WIND...70MPH
 
$$
Zell

993 
WWUS55 KTWC 172252
SVSTWC

Severe Weather Statement
National Weather Service Tucson AZ
352 PM MST TUE JUL 17 2018

AZC019-172302-
/O.EXP.KTWC.SV.W.0021.000000T0000Z-180717T2300Z/
Pima-
352 PM MST TUE JUL 17 2018

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN PIMA COUNTY WILL
EXPIRE AT 400 PM MST...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 3156 11179 3165 11179 3163 11157 3149 11156
TIME...MOT...LOC 2252Z 116DEG 7KT 3159 11169 

$$
Zell

Area Forecast Discussion
National Weather Service Tucson AZ
255 PM MST Tue Jul 17 2018

.SYNOPSIS...Plenty of moisture and instability will remain in
place to support daily showers and thunderstorms through at least
the middle of the week. Partial drying from the east may lead to
reduced thunderstorm coverage by the weekend, along with hotter
temperatures.

&&

.DISCUSSION...The upper low moving through Sonora, Mexico along
with the northern extent of the inverted trough passing through
Arizona was showing up nicely in Satellite water vapor imagery.
Showers and a few thunderstorms were developing this afternoon in
the vicinity of this upper low and across far western Pima county.
This general area will be the main focus of showers and thunderstorm
this evening and tonight. Cannot rule out a few thunderstorms
farther north though. Otherwise, high pressure aloft will become
established over the Great Basin region around Wednesday before
shifting over the Desert Southwest this coming weekend. This
adjustment in the position of the upper high will result in some
warming and drying aloft by the end of the week. This warmer and
drying will eventually translate to less thunderstorm activity and
hotter daytime temperatures by the weekend.

&&

.AVIATION...Valid through 19/00Z.
Isolated to scattered -SHRA/TSRA mainly west of KTUS and near the
International Border through the  Cloud bases 8k-12k ft AGL with SCT-
BKN clouds above 20k. Winds remain below 12 kts through the period,
with stronger gusts possible around TSRA. Aviation discussion not
updated for TAF amendments.

&&

.FIRE WEATHER...A shift in the weather pattern will begin to
take place, bringing in drier air and reducing rain chances.
However, isolated storms could still develop, especially over the
higher terrain. Temperatures also gradually warm through the week.
20-ft winds remain below 15 mph, although the Upper Gila River
Valley will experience gustier northwesterly winds at times.

&&

.TWC WATCHES/WARNINGS/ADVISORIES...None.

&&

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