Severe Thunderstorm Warning 18, NWS Tucson, AZ

792 
WWUS55 KTWC 070424
SVSTWC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
924 PM MST SAT JUL 6 2013

AZC021-070445-
/O.CON.KTWC.SV.W.0018.000000T0000Z-130707T0445Z/
PINAL AZ-
924 PM MST SAT JUL 6 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM MST
FOR CENTRAL PINAL COUNTY...

AT 918 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DESTRUCTIVE WINDS
IN EXCESS OF 70 MPH. THESE WINDS ARE LIKELY RESULTING IN BLOWING 
DUST THAT IS REDUCING VISIBILITIES BELOW A QUARTER MILE. 

THIS STORM WAS LOCATED 18 MILES NORTHEAST OF PICACHO PEAK...OR 15 
MILES SOUTHEAST OF FLORENCE...MOVING EAST AT 5 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IF YOU ENCOUNTER STRONG WINDS...BLOWING DUST AND POOR VISIBILITES
WHILE DRIVING...PULL OFF THE ROAD IF POSSIBLE...PUT THE VEHICLE IN
PARK...TAKE YOUR FOOT OFF THE BRAKE AND WAIT UNTIL THE VISIBILITY
IMPROVES. PROTECT YOUR HEAD FROM POSSIBLE FLYING DEBRIS.

&&

LAT...LON 3298 11106 3259 11139 3274 11165 3306 11120
TIME...MOT...LOC 0423Z 248DEG 5KT 3286 11122

$$

878 
WWUS55 KTWC 070443
SVSTWC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
943 PM MST SAT JUL 6 2013

AZC021-070451-
/O.EXP.KTWC.SV.W.0018.000000T0000Z-130707T0445Z/
PINAL AZ-
943 PM MST SAT JUL 6 2013

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL PINAL COUNTY WILL
EXPIRE AT 945 PM MST...

THE THUNDERSTORM THAT PRODUCED THE STRONG DAMAGING WINDS AND BLOWING 
DUST ACROSS CENTRAL PIMA COUNTY HAS WEAKENED BELOW SEVERE LEVELS. 
THEREFORE...THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO 
EXPIRE AT 945 PM MST.

HOWEVER...STORM IN THIS AREA REMAIN STRONG...CAPABLE OF PRODUCING 
WINDS TO 50 MPH...AREAS OF BLOWING DUST AND HEAVY RAINFALL.

LAT...LON 3298 11106 3259 11139 3274 11165 3306 11120
TIME...MOT...LOC 0441Z 248DEG 5KT 3287 11119

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TUCSON AZ
225 PM MST SAT JUL 6 2013

.SYNOPSIS...A RIDGE OF HIGH PRESSURE WILL BUILD OVER THE DESERT
SOUTHWEST THIS WEEKEND EXPANDING EASTWARD EARLY NEXT WEEK. THIS
RIDGE WITH OCCASIONAL WEAK DISTURBANCES ROTATING AROUND
IT...COMBINED WITH MOISTURE ACROSS THE AREA WILL PROVIDE A CHANCE OF
SHOWERS AND THUNDERSTORMS EARLY IN THE NEW WEEK. INCREASED ACTIVITY
IS POSSIBLE THE SECOND HALF OF THE WEEK.

&&

.DISCUSSION...GREAT MOISTURE BUT WEAK FLOW TODAY. WE MIGHT STILL BE
SEEING SOME OF THE AFTER EFFECTS OF THE WIDESPREAD CONVECTION AND
DOUBLE COMPLEXES WE SAW YESTERDAY AFTERNOON AND EVENING. SOME STORMS
WILL STILL MEANDER INTO VALLEY LOCATIONS BUT NOT EXPECTING COVERAGE
TO BE UP TO YESTERDAY FOR MOST OF OUR AREA. STILL WATCHING IMPULSE
ON SOUTHWEST PERIPHERY SCOOTING UP FROM SONORA THIS AFTERNOON...NOW
CROSSING THE BORDER INTO SOUTH CENTRAL PIMA COUNTY AS A POSSIBLE
FOCAL POINT. OTHERWISE HI RES RAPID REFRESH SPREADS A FEW STORMS
INTO VALLEY LOCATIONS AFTER 01Z.

WITH WEAK FLOW AND STRUCTURE WE WILL PROBABLY LIMP ALONG AT A LOW
GRADE THUNDERSTORM FORECAST TO START THE NEW WEEK. THE HIGH PRESSURE
AND LESS PERVASIVE CLOUD COVER SHOULD ALLOW FOR TEMPERATURES ON THE
HOTTER SIDE 5 TO 8 DEGREES ABOVE CLIMO. SURGE ACTIVITY ASSISTED BY
TROPICAL INFLUENCES AS EARLY AS TUESDAY NIGHT WITH AN INVERTED
TROUGH PUSHING ACROSS PORTIONS OF NORTHWEST MEXICO BY MID WEEK.

&&

.AVIATION...WDLY SCTD T-STORMS MAINLY NEAR THE MOUNTAINS...WITH A
FEW MOVING INTO THE VALLEYS. WIND GUSTS WILL APPROACH 40-45 KTS WITH
THE STRONGEST TSTMS. TSRA ENDING AROUND 07/06Z. OTHERWISE...VFR
CONDITIONS WITH DIURNALLY DRIVEN WINDS TO OCCUR THRU EARLY SUNDAY
AFTERNOON. AVIATION DISCUSSION NOT UPDATED FOR TAF AMENDMENTS.

&&

.FIRE WEATHER...SCATTERED MOUNTAIN THUNDERSTORMS THIS EVENING WITH
ISOLD STORMS IN THE VALLEY. ON SUNDAY...EXPECT ISOLATED TO SCATTERED
AFTERNOON/EVENING THUNDERSTORMS. THEREAFTER...SCATTERED MAINLY
AFTERNOON AND EVENING THUNDERSTORMS WILL OCCUR DURING THE UPCOMING
WEEK FROM TUCSON EASTWARD...WITH ISOLATED THUNDERSTORMS WEST OF
TUCSON. THE STRONGER THUNDERSTORMS WILL PRODUCE STRONG...GUSTY AND
ERRATIC WINDS. OTHERWISE...NORMAL DIURNAL WIND TRENDS WILL OCCUR
THIS WEEKEND AND DURING THE UPCOMING WEEK. DAYTIME RELATIVE
HUMIDITIES NEXT WEEK WILL RANGE FROM THE MID TEENS TO 20S WITH GOOD
NIGHTTIME RECOVERIES.

&&

.CLIMATE...TODAY HAS BEEN THE 36TH CONSECUTIVE DAY WITH TEMPERATURES
IN EXCESS OF 100 DEGREES AT TUCSON INTERNATIONAL AIRPORT...4TH
LONGEST ALL TIME.

&&

.TWC WATCHES/WARNINGS/ADVISORIES...NONE.

&&

VISIT US ON FACEBOOK...TWITTER...YOUTUBE...AND AT WEATHER.GOV/TUCSON

MEYER/GLUECK

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
607 PM MST SAT JUL 6 2013

AZZ506-511-070145-
GALIURO AND PINALENO MOUNTAINS INCLUDING MOUNT GRAHAM AZ-SOUTHEAST
PINAL COUNTY INCLUDING KEARNY/MAMMOTH/ORACLE AZ-
607 PM MST SAT JUL 6 2013

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN PINAL COUNTY UNTIL 645 PM
MST...

AT 600 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM 9 MILES NORTH OF MAMMOTH...OR 10 MILES SOUTHEAST
OF DUDLEYVILLE...MOVING NORTH AT 10 MPH.

HAIL UP TO THE SIZE OF PENNIES AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM...ESPECIALLY ALONG HIGHWAY 77 BETWEEN
MAMMOTH AND DUDLEYVILLE. THIS STORM WILL ALSO PRODUCE LOCALIZED
HEAVY RAINFALL BETWEEN 1.00 AND 1.5 INCHES.

LAT...LON 3284 11075 3298 11068 3296 11048 3269 11056
      3272 11072
TIME...MOT...LOC 0105Z 197DEG 9KT 3286 11060

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
722 PM MST SAT JUL 6 2013

AZZ508-509-511-512-070315-
CHIRICAHUA MOUNTAINS INCLUDING CHIRICAHUA NATIONAL MONUMENT
AZ-EASTERN COCHISE COUNTY BELOW 5000 FEET INCLUDING DOUGLAS/WILLCOX
AZ-GALIURO AND PINALENO MOUNTAINS INCLUDING MOUNT GRAHAM AZ-UPPER
GILA RIVER AND ARAVAIPA VALLEYS INCLUDING CLIFTON/SAFFORD AZ-
722 PM MST SAT JUL 6 2013

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN GRAHAM AND NORTHERN
COCHISE COUNTIES UNTIL 815 PM MST...

AT 712 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
CLUSTER OF STRONG THUNDERSTORMS GENERALLY NORTH OF INTERSTATE 10
THAT EXTEND FROM NORTHWEST OF WILLCOX AND EASTWARD ALONG THE COCHISE
AND GRAHAM COUNTY LINE AND EAST OF THE PINALENO MOUNTAINS. THESE
STORMS WERE DRIFTING SLOWLY TO THE NORTHEAST.

WIND GUSTS UP TO 50 MPH ARE EXPECTED WITH THESE STORMS AS WELL AS
BLOWING DUST WHICH COULD AFFECT MOTORISTS ALONG INTERSTATE 10
BETWEEN WILLCOX AND BOWIE. VISIBILITIES COULD BE REDUCED TO BELOW 1
MILE WITH THESE STORMS AND PERHAPS LESS THAN A HALF MILE IN SOME
PLACES...SO MOTORISTS SHOULD DRIVE WITH CAUTION.

OTHER AREAS AFFECTED BY THESE STORMS INCLUDE...THE JUNCTION OF
HIGHWAYS 191 AND 266 AND SWIFT TRAIL JUNCTION.

FREQUENT LIGHTNING WILL ALSO ACCOMPANY THESE STORMS.

THIS STORM MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.

LAT...LON 3248 11016 3259 10983 3278 10969 3259 10938
      3229 10964 3219 10997
TIME...MOT...LOC 0215Z 196DEG 5KT 3247 10978

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
746 PM MST SAT JUL 6 2013

AZZ502-504>506-515-070345-
BABOQUIVARI MOUNTAINS INCLUDING KITT PEAK AZ-SOUTH CENTRAL PINAL
COUNTY INCLUDING ELOY/PICACHO PEAK STATE PARK AZ-SOUTHEAST PINAL
COUNTY INCLUDING KEARNY/MAMMOTH/ORACLE AZ-TOHONO O'ODHAM NATION
INCLUDING SELLS AZ-TUCSON METRO AREA INCLUDING TUCSON/GREEN
VALLEY/MARANA/VAIL AZ-
746 PM MST SAT JUL 6 2013

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL PORTIONS OF PIMA COUNTY
AND WESTERN PORTIONS OF PINAL COUNTY UNTIL 845 PM MST...

RADAR INDICATED SCATTERED SHOWERS AND THUNDERSTORMS FROM SANTA ROSA
RANCH IN CENTRAL PIMA COUNTY TO AVRA VALLEY AND NEAR MARANA...AS
WELL AS NEAR RED ROCK IN PINAL COUNTY.

AREAS AFFECTED INCLUDE...MARANA...ELOY...SANTA ROSA...AVRA VALLEY...
WHITE HORSE PASS...SILVER BELL...SIL NAGGIA...SANTA ROSA RANCH...SAN
PEDRO...SAN ISIDRO...RED ROCK...QUEENS WELL...PICACHO PEAK...
PICACHO...PAN TAK...NORTH KOMELIK...JACKRABBIT...FRIENDLY CORNERS...
COMOBABI AND COCKLEBUR.

EXPECT REDUCED VISIBILITIES DUE TO BLOWING DUST AT TIMES AS THESE
STORMS MOVE TO THE NORTH NORTHEAST ACROSS PORTIONS OF INTERSTATE 10
BETWEEN MARANA AND ELOY AND POTENTIALLY PRODUCE WIND GUSTS NEAR 50
MPH. VISIBILITIES WILL BE REDUCED TO AROUND 1 MILE...BUT LOWER IN
SOME PLACES AS THESE STORMS MOVE ACROSS THE INTERSTATE.

IN ADDITION...BLOWING DUST CAN QUICKLY REDUCE VISIBILITY...CAUSING
ACCIDENTS THAT MAY INVOLVE CHAIN COLLISIONS AND MULTIPLE PILEUPS. IF
DENSE DUST IS OBSERVED BLOWING ACROSS A ROADWAY...PULL YOUR VEHICLE
OFF THE PAVEMENT AS FAR AS POSSIBLE TO STOP. TURN OFF THE LIGHTS...
SET THE EMERGENCY BRAKE...AND TAKE YOUR FOOT OFF THE BRAKE PEDAL TO
ENSURE BRAKE LIGHTS ARE NOT ILLUMINATED.

LAT...LON 3215 11210 3278 11193 3278 11189 3280 11187
      3280 11178 3274 11173 3274 11168 3277 11160
      3290 11145 3289 11100 3232 11116 3196 11158

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TUCSON AZ
811 PM MST SAT JUL 06 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0808 PM     TSTM WND GST     6 NNW WILLCOX           32.33N 109.89W
07/06/2013  M78 MPH          COCHISE            AZ   TRAINED SPOTTER

            SPOTTER REPORT OF 78MPH WIND GUST

&&

EVENT NUMBER TWC1300035

RH

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TUCSON AZ
812 PM MST SAT JUL 06 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0800 PM     TSTM WND DMG     BISBEE                  31.43N 109.89W
07/06/2013                   COCHISE            AZ   LAW ENFORCEMENT

            SHERIFFS OFFICE REPORTED POWER LINES DOWN ON FORT GRANT
            ROAD NORTH OF WILLCOX.

&&

EVENT NUMBER TWC1300036

MOLLERE

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
857 PM MST SAT JUL 6 2013

AZZ502-504>506-070445-
SOUTH CENTRAL PINAL COUNTY INCLUDING ELOY/PICACHO PEAK STATE PARK
AZ-SOUTHEAST PINAL COUNTY INCLUDING KEARNY/MAMMOTH/ORACLE AZ-TOHONO
O'ODHAM NATION INCLUDING SELLS AZ-TUCSON METRO AREA INCLUDING
TUCSON/GREEN VALLEY/MARANA/VAIL AZ-
857 PM MST SAT JUL 6 2013

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL PINAL AND NORTHERN PIMA
COUNTIES UNTIL 945 PM MST...

AT 848 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
CLUSTER OF STRONG THUNDERSTORMS OVER EXTREME NORTH CENTRAL PIMA
COUNTY AND EXTENDING INTO MUCH OF PINAL COUNTY. THESE STORMS ARE
MOVING NORTH AT 5 TO 10 MPH. THESE STRONGEST STORMS WERE GENERALLY
ALONG INTERSTATE 10 BETWEEN MARANA AND ELOY.

WIND GUSTS UP TO 50 MPH ARE POSSIBLE WITH THESE STORMS AND WILL
LIKELY RESULT IN BLOWING DUST...REDUCING VISIBILITIES TO AROUND 1
MILE...WITH OCCASIONAL VISIBILITIES LOWERING TO AROUND A HALF MILE
IN SOME PLACES...ESPECIALLY NEAR THE STRONGER STORMS.

AREAS AFFECTED BY THIS STORM INCLUDE...ELOY...DOVE MOUNTAIN...RED
ROCK...PICACHO PEAK AND PICACHO.

LAT...LON 3314 11105 3239 11103 3235 11201 3278 11198
      3278 11189 3280 11187 3280 11183 3280 11178
      3274 11173 3275 11166 3312 11115
TIME...MOT...LOC 0353Z 208DEG 6KT 3266 11155