Severe Thunderstorm Warning 18, NWS Tucson, AZ

000 
WWUS55 KTWC 172237
SVSTWC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
335 PM MST SUN JUL 17 2005

AZC009-021-172300-
/O.CON.KTWC.SV.W.0018.000000T0000Z-050717T2300Z/
GRAHAM AZ-PINAL AZ-
335 PM MST SUN JUL 17 2005

...A SEVERE THUNDERSTORM WARNING CONTINUES UNTIL 400 PM MST FOR EAST
CENTRAL PINAL AND WEST CENTRAL GRAHAM COUNTIES...

AT 326 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DIME SIZE HAIL...
AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS APPROACHING 
KLONDYKE AND AREAS JUST EAST OF DUDLEYVILLE. MOVEMENT WAS SOUTH AT 
10 MPH.

LAT...LON 3319 11015 3317 11048 3289 11070 3273 11000

$$

WEATHER.GOV/TUCSON

000 
WWUS55 KTWC 172305
SVSTWC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
400 PM MST SUN JUL 17 2005

AZC009-021-172310-
/O.EXP.KTWC.SV.W.0018.000000T0000Z-050717T2300Z/
GRAHAM AZ-PINAL AZ-
400 PM MST SUN JUL 17 2005

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL PINAL AND WEST
CENTRAL GRAHAM COUNTIES EXPIRED AT 400 PM MST...

THE THUNDERSTORM THAT PROMPTED THE WARNING HAD MOVED SOUTH OF 
KYONDYKE WHERE ANOTHER SEVERE THUNDERSTORM WARNING HAS BEEN POSTED 
FOR SOUTHWEST GRAHAM COUNTY AND NORTHWEST COCHISE COUNTY UNTIL 415 
PM MST. 

AT 400 PM...TUCSON DOPPLER RADAR INDICATED A COUPLE OF SEVERE 
THUNDERSTORMS CLUSTERED FROM SOUTH OF KLONDYKE SOUTH TO AROUND 
BENSON. THESE STORMS CAN PRODUCE WINDS IN EXCESS OF 60 MPH AND DIME 
TO NICKEL SIZE HAIL. MOVEMENT OF THE STORMS WAS SOUTH AT 10 MPH.

LAT...LON 3319 11015 3317 11048 3289 11070 3273 11000

$$

WEATHER.GOV/TUCSON

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TUCSON AZ
215 PM MST SUN JUL 17 2005

.SYNOPSIS...STRONG HIGH PRESSURE ALOFT OVER FAR WESTERN ARIZONA AND
SOUTHERN NEVADA WILL MAINTAIN THE ABOVE NORMAL TEMPERATURES THROUGH
MONDAY. ENOUGH MOISTURE EXISTS FOR ISOLATED THUNDERSTORMS THIS
AFTERNOON AND EVENING AND AGAIN MONDAY. THE HIGH PRESSURE SYSTEM
WILL MOVE EAST TOWARD THE CENTRAL ROCKIES LATER THIS WEEK...AND
BRING AN INCREASE IN MOISTURE AND THUNDERSTORMS TO SOUTHEAST ARIZONA.

&&

.DISCUSSION...CURRENTLY RADARS ARE DETECTING ISOLATED THUNDERSTORMS
DEVELOPING ALONG THE MOGOLLON RIM AND THE WHITE MOUNTAINS...AS WELL
AS IN WEST CENTRAL NEW MEXICO. ALL OF THE STORMS SEEM TO EXHIBIT A
SOUTH OR SOUTH SOUTHWEST MOTION.

BASED ON POSITION OF THE UPPER HIGH...WHICH IS OVER SOUTHERN
CALIFORNIA SOUTH OF LAS VEGAS...WOULD EXPECT MOST OF THE STORMS TO
DEVELOP THIS AFTERNOON OVER MY THREE EASTERN MOST ZONES OF
GREENLEE...GRAHAM AND COCHISE COUNTIES. DRIER MID LEVEL AIR TO MY
NORTH AND WEST SHOULD HELP TO LIMIT THE CONVECTION TO SOME EXTENT
FOR THE CENTRAL AND WESTERN DESERTS...BUT AS THE AFTERNOON AND
EVENING PROGRESSES CANT RULE OUT THE DEVELOPMENT OF ISOLATED STORMS
AS OUTFLOWS FROM STORMS TO THE EAST MAY PUSH INTO THE AREA.

MODELS GENERALLY INDICATE THAT THE UPPER HIGH WILL MAINTAIN ITS
POSITION NEAR THE CONJUNCTION OF THE ARIZONA...CALIFORNIA AND NEVADA
BORDERS THROUGH AROUND LATE MONDAY OR EARLY TUESDAY. RIPPLES OF
ENERGY WILL ROTATE AROUND THE EAST/SOUTHEAST PERIPHERY OF THE HIGH
THROUGH THAT TIME WHICH WILL HELP TO ENHANCE THE CONVECTION DURING
THE AFTERNOON AND EVENING HOURS ON MONDAY...BUT ONLY ISOLATED STORMS
EXPECTED. ON TUESDAY THE HIGH WILL SHIFT EASTWARD INTO NORTHERN
ARIZONA AND NW NEW MEXICO. THIS WILL CONTINUE TO PROVIDE THE AREA
WITH A NORTHEAST TO EASTERLY FLOW WHICH SHOULD KEEP ENOUGH MOISTURE
IN THE AREA TO KEEP MAINLY ISOLATED STORMS IN THE FORECAST. BY
WEDNESDAY THE REMNANTS OF EMILY SHOULD HAVE PUSHED INTO EASTERN
MEXICO SOUTH OF THE BROWNSVILLE AREA. AS A RESULT A LONG FETCH OF
EASTERLY FLOW SHOULD DEVELOP ACROSS ARIZONA. THIS EASTERLY FETCH
WILL CONTINUE THROUGH THE REMAINDER OF THE WEEK AS REMNANTS OF EMILY
AND ITS ASSOCIATED MOISTURE TREKS WESTWARD. THUS...WE SHOULD SEE AN
UPSWING IN RAIN CHANCES AS THIS OCCURS. FOR THE TIME BEING I
INCREASED AFTERNOON AND EVENING POPS TO THE LOW END OF THE CHANCE
CATEGORY AND KEPT IT THERE THROUGH THE WEEKEND. HOWEVER...IF THE GFS
IS CORRECT WE COULD SEE HIGHER RAIN CHANCES THIS WEEKEND. SINCE THIS
IS DAY 6 & 7 WILL HOLD OFF FOR ANOTHER MODEL RUN OR TWO...BUT IF THE
MODELS MAINTAIN THIS WET SCENARIO WITH THE APPROACH OF THE REMNANTS
OF EMILY...SUBSEQUENT SHIFTS WILL LIKELY HAVE TO INCREASE RAIN
CHANCES FOR LATE IN THE WEEK AND INTO THE WEEKEND. STILL ENOUGH
UNCERTAINTY AT THIS TIME TO WAIT...ESPECIALLY SINCE THE LAST RUN OF
THE ECMWF DOESNT PUSH AS MUCH MOISTURE INTO THE REGION AS THE GFS
DOES.

TEMPERATURES WILL CONTINUE ABOVE THE 105 DEGREE MARK THROUGH THE
MIDDLE OF THE UPCOMING WEEK. THEREAFTER AS MOISTURE INCREASES FROM
THE EAST EXPECT DAYTIME HIGHS TO MODERATE A BIT WITH AFTERNOON HIGHS
EXPECTED TO BE JUST BELOW THE 100 DEGREE MARK BY FRIDAY AND
CONTINUING THROUGH THE WEEKEND.

&&

.FIRE WEATHER...HIGH PRESSURE CENTERED JUST SOUTH OF LAS VEGAS WILL
CONTINUE TO DOMINATE THE WEATHER OVER SOUTHEAST ARIZONA. THIS WILL
LEAD TO ABOVE NORMAL TEMPERATURES THROUGH MOST OF THE WEEK AND
PROVIDE THE HEATING NECESSARY TO PRODUCE AFTERNOON AND EVENING
THUNDERSTORMS. BY WEDNESDAY ADDITIONAL MOISTURE WILL ENTER THE AREA
FROM THE SOUTHEAST INCREASING THE POSSIBILITY OF THUNDERSTORMS.
OTHERWISE... A RETURN TO NEAR NORMAL TEMPERATURES CAN BE EXPECTED BY
WEEKS END AS MORE CLOUDS FILL THE SKY ASSOCIATED WITH THE INCREASE
IN MOISTURE.
&&

.AVIATION...TAF AND TWEBS ADEQUATELY COVER ALL SIGNIFICANT WEATHER
AT KTUS.

&&

PUBLIC DISCUSSION...MOLLERE
FIRE WEATHER/AVIATION...EVANS

WEATHER.GOV/TUCSON

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TUCSON AZ
1210 PM MST SUN JUL 17 2005

AZZ029-031-032-181400-
SOUTHEAST PINAL COUNTY-TOHONO OODHAM NATION-WESTERN PIMA COUNTY-
1210 PM MST SUN JUL 17 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST PINAL COUNTY AND THE
CENTRAL AND WESTERN PORTIONS OF PIMA COUNTY

.DAY ONE...TODAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. HOWEVER... THERE IS A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE THIS AFTERNOON AND
EVENING. NO SIGNIFICANT PRECIPITATION IS EXPECTED... WITH THE MAIN
THREAT BEING STRONG WIND GUSTS THAT MAY APPROACH 45 MPH.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. HOWEVER... THERE WILL
BE A POSSIBILITY OF SHOWERS AND THUNDERSTORMS EACH AFTERNOON AND
EVENING THROUGH THE WEEK AND INTO THE WEEKEND.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

AZZ033-181400-
TUCSON METRO/MARANA/GREEN VALLEY-
1210 PM MST SUN JUL 17 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN PIMA COUNTY

.DAY ONE...TODAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. HOWEVER... THERE IS A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS THIS AFTERNOON AND
EVENING. NO SIGNIFICANT PRECIPITATION IS EXPECTED... ALTHOUGH THE
STRONGER STORMS MAY PRODUCE VERY ISOLATED AND BRIEF PERIODS OF
MODERATE TO HEAVY RAINFALL. THE MAIN THREAT WILL BE STRONG WIND
GUSTS THAT COULD APPROACH 50 MPH.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. HOWEVER... THERE WILL
BE A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS EACH AFTERNOON AND
EVENING THROUGH THE WEEK AND INTO THE WEEKEND.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

AZZ019-030-034-035-181400-
NORTHERN GREENLEE COUNTY-UPPER GILA RIVER VALLEY-COCHISE COUNTY-SANTA
CRUZ COUNTY-
1210 PM MST SUN JUL 17 2005

THIS HAZARDOUS WEATHER OUTLOOK IS FOR GREENLEE... GRAHAM... COCHISE
AND SANTA CRUZ COUNTIES

.DAY ONE...TODAY

DRIER MID LEVEL AIR HAS BEGUN TO ENTER THE AREA FROM THE NORTH UNDER
HIGH PRESSURE CENTERED JUST SOUTH OF LAS VEGAS. HOWEVER... AMPLE
MOISTURE REMAINS OVERHEAD TO CAUSE THUNDERSTORMS TO ONCE AGAIN
DEVELOP TODAY THROUGH EARLY TONIGHT. THE THUNDERSTORM STEERING FLOW
IS FROM THE NORTH. THE MAIN THREAT FROM MOST OF THE THUNDERSTORMS
THAT DEVELOP IS STRONG WIND GUSTS WHICH COULD APPROACH 50 MPH.
HOWEVER... THERE IS A CHANCE FOR A THUNDERSTORM OR TWO TO PRODUCE
BRIEF HEAVY RAIN... SEVERE WIND GUSTS OF OVER 60 MPH OR LARGE HAIL.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. HOWEVER... THERE WILL
BE A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS EACH AFTERNOON AND
EVENING THROUGH THE WEEK AND INTO THE WEEKEND.

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

EVANS