Flash Flood Warning 63, NWS Tucson, AZ

000 
WGUS75 KTWC 140356
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
856 PM MST WED AUG 13 2008

AZC019-140545-
/O.CON.KTWC.FF.W.0063.000000T0000Z-080814T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIMA AZ-
856 PM MST WED AUG 13 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1045 PM MST FOR EAST
CENTRAL PIMA COUNTY...

AT 848 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A THUNDERSTORM PRODUCING FLASH FLOODING OVER MUCH OF 
NORTHERN AND CENTRAL TUCSON. RADAR RAINFALL ESTIMATES WERE WELL IN 
EXCESS OF 1 INCH ACROSS A LARGE AREA OF THE CITY...WITH RAIN GAGES 
REPORTING .87 AT RILLITO CREEK AND DODGE BLVD AS WELL AS ALAMO WASH 
AT GLENN STREET.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...RILLITO 
RIVER...TANQUE VERDE WASH...PANTANO WASH...VENTANA CANYON 
WASH...BIRD CANYON...ESPERERO WASH AND SABINO CREEK.

A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR THE AREA AS 
WELL. EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF 
WASHES AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND 
UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

LAT...LON 3232 11104 3237 11079 3219 11078 3210 11104

$$

MEYER

000 
WGUS75 KTWC 140424
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
924 PM MST WED AUG 13 2008

AZC019-140545-
/O.CON.KTWC.FF.W.0063.000000T0000Z-080814T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIMA AZ-
924 PM MST WED AUG 13 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1045 PM MST FOR EAST
CENTRAL PIMA COUNTY...

AT 920 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
SHOWERS AND THUNDERSTORMS WERE WEAKENING ACROSS THE TUCSON AREA AS 
THE HEAVIEST PORTIONS OF THE STORMS HAD MOVED WESTWARD AND OUT OF 
THE CITY. ADDITIONAL RAINFALL AMOUNTS UP TO 1/2 INCH ARE POSSIBLE 
OVER AREAS OF THE CITY THAT RECORDED 1 TO 2 INCHES OF RAINFALL OVER 
THE PAST HOUR...INCLUDING NORTH CENTRAL AND CENTRAL AREAS OF THE 
CITY.

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...RILLITO 
RIVER...TANQUE VERDE WASH...PANTANO WASH...VENTANA CANYON 
WASH...BIRD CANYON...ESPERERO WASH AND SABINO CREEK.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF WASHES 
AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS 
WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

LAT...LON 3232 11104 3237 11079 3219 11078 3210 11104

$$

MEYER

000 
WGUS75 KTWC 140512
FFSTWC

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
1012 PM MST WED AUG 13 2008

AZC019-140545-
/O.CON.KTWC.FF.W.0063.000000T0000Z-080814T0545Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PIMA AZ-
1012 PM MST WED AUG 13 2008

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1045 PM MST FOR EAST
CENTRAL PIMA COUNTY...

AT 1005 PM MST...LIGHT TO MODERATE SHOWERS CONTINUED ACROSS PORTIONS 
OF THE TUCSON METRO AREA. HEAVY RUNOFF WILL CONTINUE FROM EARLIER 
RAINFALL AMOUNTS IN THE 1 TO 2 INCH RANGE...WITH HEAVIEST REPORTS 
ACROSS CENTRAL AND NORTHCENTRAL TUCSON.

EXPECT FLOODING OF WASHES AND STREAMS...URBAN 
AREAS...HIGHWAYS...STREETS AND UNDERPASSES AS WELL AS OTHER DRAINAGE 
AREAS AND LOW LYING SPOTS.

LAT...LON 3232 11104 3237 11079 3219 11078 3210 11104

$$

MEYER

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TUCSON AZ
243 PM MST WED AUG 13 2008

.SYNOPSIS...SCATTERED THUNDERSTORMS WILL BE AROUND TONIGHT INTO
FRIDAY BEFORE BECOMING ISOLATED THIS WEEKEND INTO EARLY NEXT WEEK.
HIGH TEMPERATURES WILL BE NEAR OR SLIGHTLY ABOVE NORMAL THROUGH
EARLY NEXT WEEK.

&&

.DISCUSSION...CLOUD COVER OVER SOUTHEAST ARIZONA THIS MORNING WAS
SLOW TO DISSIPATE THIS AFTERNOON AND THIS HAS CUT DOWN POTENTIAL
HEATING ACROSS THE AREA. WHERE THERE HAS BEEN SUN...ESPECIALLY NEAR
AND SOUTH OF THE INTERNATIONAL BORDER...STORMS HAVE DEVELOPED AND
ARE SLOWLY PUSHING NORTH. REGIONAL SOUNDINGS THIS MORNING AND GOES
PW INDICATED THAT PRECIPITABLE WATER VALUES ARE BETWEEN 1.50 AND 2
ACROSS THE AREA...WETTEST WEST OF TUCSON. SOUTHERLY FLOW WILL
CONTINUE ACROSS THE AREA TONIGHT BETWEEN UPPER LOW OFF BAJA SPUR AND
UPPER HIGH IN WESTERN NEW MEXICO. THIS PLACES UPPER DIFFLUENCE AREA
OVER SOUTHERN ARIZONA. WITHIN IN THIS SOUTHERLY FLOW ALOFT WILL BE
PIECES OF ENERGY THAT MIGHT ENHANCE ACTIVITY TONIGHT INTO THURSDAY.
ACCORDING TO WATER VAPOR IMAGERY THIS AFTERNOON...ONE APPEARS TO BE
MOVING OVER CENTRAL BAJA. INCREASED POPS A BIT THIS EVENING AND
INCLUDED HEAVY SHOWERS WITH A FEW STORMS CAPABLE OF PRODUCING OVER
AN INCH OF RAIN.

ACTIVITY ON THURSDAY HIGHLY DEPENDENT ON WHAT HAPPENS THIS EVENING
AND OVERNIGHT. SO WILL KEEP SLIGHT CHANCE TO LOW CHANCE POPS ACROSS
THE AREA.

QUASI-STATIONARY LOW OVER SOUTHERN SASKATCHEWAN WILL MOVE THROUGH
EASTERN MONTANA THURSDAY...WYOMING FRIDAY AND BE IN COLORADO ON
SATURDAY. UPPER RIDGE WILL AMPLIFY/BUILD NORTH INTO THE PACIFIC
NORTHWEST DURING THE ABOVE TIME FRAME WITH MOISTURE VALUES ACROSS
THE AREA GRADUALLY LOWERING EACH DAY. HOWEVER STILL ENOUGH AROUND
FOR SLIGHT CHANCE OF AFTERNOON/EVENING STORMS THIS WEEKEND. BY EARLY
NEXT WEEK...THIS UPPER LOW WILL BE MOVING INTO THE SOUTHERN PLAINS
WITH UPPER RIDGE OVERHEAD. STILL ENOUGH MOISTURE AROUND TO KEEP
SLIGHT CHANCE WORDING EACH DAY.

TEMPERATURES WILL BE NEAR SEASONAL NORMAL WITH THE USUAL DAY 2 DAY
FLUCTUATIONS.

&&

.AVIATION...THUNDERSTORMS WILL BE ON THE INCREASE THIS EVENING THEN
START TO WIND DOWN OVERNIGHT. LIGHT DIURNALLY DRIVEN WINDS OF 5-15
KTS EXPECTED...EXCEPT NEAR THUNDERSTORMS. AVIATION DISCUSSION NOT
UPDATED FOR TAF AMENDMENTS.

&&

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

WEATHER.GOV/TUCSON