Severe Thunderstorm Warning 62, NWS Tucson, AZ

598 
WWUS55 KTWC 062019
SVSTWC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
119 PM MST TUE AUG 6 2013

AZC003-062045-
/O.CON.KTWC.SV.W.0062.000000T0000Z-130806T2045Z/
COCHISE AZ-
119 PM MST TUE AUG 6 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 145 PM MST
FOR SOUTH CENTRAL COCHISE COUNTY...

AT 112 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 LOCATED NEAR BISBEE-DOUGLAS AIRPORT...MOVING 
NORTHEAST AT 25 MPH. AT 1258 PM MST...THE AUTOMATED OBSERVING SITE 
AT THE AIRPORT RECORDED A WIND GUST OF 64 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3165 10988 3180 10958 3166 10932 3134 10931
      3133 10973
TIME...MOT...LOC 2017Z 225DEG 22KT 3153 10953

$$

668 
WWUS55 KTWC 062043
SVSTWC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
143 PM MST TUE AUG 6 2013

AZC003-062052-
/O.EXP.KTWC.SV.W.0062.000000T0000Z-130806T2045Z/
COCHISE AZ-
143 PM MST TUE AUG 6 2013

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL COCHISE COUNTY
WILL EXPIRE AT 145 PM MST...

THE STORM THAT PROMPTED THE SEVERE THUNDERSTORM WARNING NEAR DOUGLAS 
HAS WEAKENED AS IT MOVED NORTHEAST. ALTHOUGH ADDITIONAL STRONG 
STORMS WILL MOVE INTO THE CITY OF DOUGLAS FROM THE SOUTHWEST OVER 
THE NEXT HALF HOUR...THESE STORMS ARE NOT EXPECTED TO BECOME 
SEVERE. 

LAT...LON 3165 10988 3180 10958 3166 10932 3134 10931
      3133 10973
TIME...MOT...LOC 2042Z 225DEG 22KT 3164 10940

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TUCSON AZ
935 AM MST TUE AUG 6 2013

.SYNOPSIS...SCATTERED SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND
EVENING. THEREAFTER...DRIER AIR WILL SPREAD INTO THE DESERT
SOUTHWEST FOR A DECREASE IN THUNDERSTORM COVERAGE THE REST OF THE
WEEK. THIS DRIER AIR WILL ALSO RESULT IN WARMER DAYTIME
TEMPERATURES.

&&

.DISCUSSION...INFRARED SATELLITE IMAGERY SHOWED EXTENSIVE CLOUD
COVER WEST OF TUCSON UP THROUGH CENTRAL ARIZONA INTO NORTHERN
ARIZONA WITH CLEAR TO PARTLY CLOUDY SKIES ACROSS THE REMAINDER OF SE
ARIZONA. REGIONAL DOPPLER RADAR DEPICTED SCATTERED SHOWERS WEST AND
NORTH OF TUCSON. RADAR ALSO SHOWED TWO WEAK CIRCULATIONS...ONE EAST
OF FLAGSTAFF MOVING NORTH AND THE OTHER OVER SW PINAL COUNTY SLOWLY
MOVING N. UPPER LEVEL TROFINESS OVER THE WESTERN ARIZONA WITH VORT
LOBE ON SRN END NEAR ROCKY POINT. PRECIPITABLE WATER VALUES ARE UP
FROM YESTERDAY AND RANGED FROM 1.40" TO 1.65"...WETTEST FROM TUCSON
WEST. 12Z TUCSON SOUNDING HAD AN ONION SHAPE LOOK TO IT WITH
SOUTHERLY WINDS FROM 10KFT ON UP.

HAVE SEEN A FEW THUNDERSTORMS IN THE PAST HOUR NEAR THE VORT LOBE
OVER FAR NW SONORA MEXICO. 12Z UA WRF NAM DID A REALLY GOOD JOB IN
INITIALIZED THE CLOUD COVER OVER THE STATE EARLY THIS MORNING WHICH
IS ALWAYS A GOOD THING WHEN LOOKING AT THE HIGH RESOLUTION MODELS.
SHOULD SEE SCATTERED THUNDERSTORMS DEVELOP BETWEEN 11 AM AND 1 PM
FROM WESTERN COCHISE COUNTY WEST INTO CENTRAL PIMA COUNTY. WITH PW
VALUES RUNNING 125% ABOVE NORMAL...EXPECT LOCALLY HEAVY RAINERS.
THERE IS SOME DRIER MID-LEVEL AIR THAT WILL WORK NORTH ACROSS THE
AREA THIS AFTERNOON...WHICH MAY ENHANCE THE CHANCES FOR ISOLATED
SEVERE WET MICROBURSTS...ESPECIALLY FROM TUCSON EAST. THIS AREA WILL
ALSO HAVE A LITTLE BETTER UPPER LEVEL DIVERGENCE. WILL RUN OUT AN
UPDATE TO THE FORECAST TO HIGHLIGHT THE THINKING ABOVE.

DEPENDING ON HOW FAST THE OVERALL TROF MOVES THROUGH THE STATE THIS
EVENING...COULD SEE LINGERING SHOWERS CONTINUE INTO THE OVERNIGHT
HOURS.

HIGH TODAY WILL BE 5-10 DEGREES BELOW NORMAL...WITH BIGGEST
DEPARTURES OCCURRING OVER WEST OF TUCSON DUE TO CLOUD COVER AND RAIN.

&&

.AVIATION...SCT SHRA MAINLY NORTH AND WEST OF KTUS PERSISTING
THROUGH ABOUT 06/20Z...THEN SCT TSRA DEVELOPING AFT 06/18Z AND
CONTINUING THRU 07/05Z...WIND GUSTS TO 45 KTS NEAR ANY TSRA...AS
WELL AS LOCAL MVFR/IFR CIGS/VSBYS. OTHERWISE...SURFACE WIND
GENERALLY LESS THAN 10 KTS THRU 07/18Z. AVIATION DISCUSSION NOT
UPDATED FOR TAF AMENDMENTS.

&&

.FIRE WEATHER...MOISTURE WILL REMAIN IN PLACE ACROSS THE REGION
TODAY...RESULTING IN A CHANCE OF MAINLY AFTERNOON AND EVENING
SHOWERS AND THUNDERSTORMS ACROSS SOUTHEAST ARIZONA. SLIGHTLY DRIER
AIR WILL MOVE IN FROM THE WEST DURING THE SECOND HALF OF THE WEEK
AND INTO THE WEEKEND FOR LESSER RAIN CHANCES. OUTSIDE OF
GUSTY THUNDERSTORM OUTFLOWS...WINDS DURING THE PERIOD ARE EXPECTED
TO BE LIGHT...GENERALLY LESS THAN 15 MPH AND DIURNALLY DRIVEN.

&&

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

&&

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