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AXUS75 KTWC 020618
DGTTWC

DROUGHT INFORMATION STATEMENT 
NATIONAL WEATHER SERVICE TUCSON ARIZONA
1115 PM MST SUN AUG 1 2021

...MONSOON RAINS PROVIDING SOME RELIEF TO DROUGHT CONDITIONS IN 
SOUTHEAST ARIZONA...

.SYNOPSIS: 

DROUGHT INTENSITY AND EXTENT: ACCORDING TO THE LATEST U.S. DROUGHT 
MONITOR, EXCEPTIONAL DROUGHT (D4) CONDITIONS REMAINED ACROSS FAR 
SOUTHEAST COCHISE COUNTY, BUT HAD IMPROVED ACROSS THE REMAINDER OF 
SOUTHEAST ARIZONA WITH EXTREME DROUGHT (D3) CONDITIONS LINGERING 
ACROSS THE REST OF EASTERN AND CENTRAL COCHISE COUNTY, MUCH OF 
GRAHAM AND GREENLEE COUNTIES, AND PORTIONS OF SOUTHWEST PINAL AND 
CENTRAL PIMA COUNTIES. MODERATE (D1) TO SEVERE (D2) CONDITIONS 
PRESENT ELSEWHERE.

PRECIPITATION: SIGNIFICANT MONSOON RAINS OCCURRED IN JULY WITH SOME 
LOCATIONS RECEIVING MORE RAIN THAN DURING THE ENTIRE 2020 MONSOON. 
EVEN WITH A VERY WET JULY THERE STILL REMAINS SOME SIGNIFICANT 
12 MONTH DEFICITS ACROSS THE AREA.

RAINFALL TOTALS BELOW ARE FOR JULY

STATION              TOTAL  +/- NORMAL  RANKING        PERIOD
TUCSON INTL AIRPORT  8.06"   + 5.85"    WETTEST       1895-2021 
NOGALES AIRPORT      7.46"   + 3.28"    2ND WETTEST   1999-2021 
SIERRA VISTA         6.48"   + 2.95"    8TH WETTEST   1900-2021 
WILLCOX              4.61"   + 1.99"    11TH WETTEST  1898-2021
SAFFORD AIRPORT      3.47"   + 2.62"     2ND WETTEST  1998-2021
PICACHO PEAK         6.76"   + 5.50"    WETTEST       1988-2021 
SAN MANUEL           4.07"   + 1.69"    11TH WETTEST  1954-2021 
AJO                  3.04"   + 2.41"    10TH WETTEST  1914-2021

12 MONTH RAINFALL TOTALS BELOW ENDING JULY 31, 2021

STATION              TOTAL   +/- NORMAL  RANKING        PERIOD
TUCSON INTL AIRPORT  10.83"   + 0.22"    62ND DRIEST   1895-2021 
NOGALES AIRPORT      12.25"   - 2.37"     7TH DRIEST   1999-2021 
SIERRA VISTA          8.88"   - 4.13"     6TH DRIEST   1900-2021 
WILLCOX               9.05"   - 3.35"    39TH DRIEST   1898-2021
SAFFORD AIRPORT       6.01"   - 1.97"    12TH DRIEST   1998-2021
PICACHO PEAK          9.62"   - 0.33"    15TH WETTEST  1988-2021 
SAN MANUEL            6.97"   - 5.64"     6TH DRIEST   1954-2021 
AJO                   7.40"   + 0.42"    46TH DRIEST   1914-2021

*NOTE* NORMAL DEPARTURE IS BASED OFF NEW 1991-2020 NORMAL PERIOD.

TEMPERATURE: THANKS TO THE RECENT RAINFALL, JULY TEMPERATURES HAVE 
TRENDED NORMAL TO BELOW NORMAL FOR MOST OF SOUTHEAST ARIZONA.

HYDROLOGIC CONDITIONS: THE INCREASE IN RAINFALL DURING THE PAST 
MONTH HAS CAUSED RIVER CHANNELS TO BECOME SATURATED. RIVERS AND 
STREAMS ARE RESPONDING QUICKLY TO RAINFALL WITH INTERMITTENT FLOW. 
NORMALLY DRY CHANNELS HAVE EXPERIENCED FLOW FOR EXTENDED PERIODS OF 
TIME WITH SOME STREAM GAGE LOCATIONS RECORDING VERY HIGH FLOWS IN 
RECENT DAYS.

.SUMMARY OF IMPACTS:

AGRICULTURAL IMPACTS: RANGELAND, PASTURE AND FORAGE AREAS AVAILABLE 
FOR LIVESTOCK CONTINUE TO BE REDUCED. 

HYDROLOGIC IMPACTS: SAN CARLOS RESERVOIR STORAGE HAS INCREASED 
DURING THE PAST MONTH, BUT REMAINS LOW.

FIRE HAZARDS: THANKS TO THE EXCEPTIONAL PERIOD OF RAIN ALONG WITH 
COOLER TEMPERATURES, FIRE SEASON 2021 WAS ABRUPTLY SHUT DOWN. ERCS 
THAT WERE AT 20+ YEAR HIGHS (EXTENT OF RECORD) PLUMMETED TO ALL TIME 
LOWS AND WE NOW HAVE A SOLID VEGETATION GREENUP. AT THIS POINT, IT 
WOULD TAKE AN EXTENDED HOT AND DRY PERIOD BEFORE WILDFIRE STARTS 
COULD BE PROBLEMATIC.

.DROUGHT MITIGATION ACTIONS: 
NEW STATE LAW ALLOWS FARMERS, RANCHERS AND OTHER WATER RIGHT HOLDERS 
TO FILE A WATER CONSERVATION PLAN WITHOUT LOSING FUTURE WATER 
RIGHTS. 

.LOCAL DROUGHT OUTLOOK: 
THE CLIMATE PREDICTION CENTER'S (CPC) 8-14 DAY OUTLOOK CALLS FOR 
NEAR PRECIPITATION AND BELOW NORMAL TEMPERATURES. THE AUGUST OUTLOOK
CALLS FOR ENHANCED PROBABILITIES FOR ABOVE NORMAL PRECIPITATION AND
TEMPERATURES. 

THE CPC OUTLOOK FOR AUGUST THROUGH OCTOBER CALLS FOR ENHANCED 
PROBABILITIES FOR ABOVE NORMAL TEMPERATURES AND BELOW NORMAL 
PRECIPITATION. ADDITIONAL IMPROVEMENT IN DROUGHT CONDITIONS MAY 
OCCUR AS LONG AS THE MONSOON REMAINS ACTIVE.

.NEXT ISSUANCE DATE:

THIS PRODUCT WILL BE UPDATED ON OR AROUND AUGUST 20 OR SOONER IF 
CONDITIONS WARRANT.

&&

.RELATED WEB SITES:

DROUGHT CONDITIONS:
U.S. DROUGHT MONITOR: DROUGHTMONITOR.UNL.EDU 
U.S. DROUGHT INFORMATION SYSTEM: DROUGHT.GOV 
NOAA DROUGHT PAGE: CPC.NC0EP.NOAA.GOV/PRODUCTS/DROUGHT 
NWS PRECIPITATION ANALYSIS PAGE: WATER.WEATHER.GOV/PRECIP  
CLIMATE PREDICTION CENTER: WWW.CPC.NCEP.NOAA.GOV 
WESTERN REGION CLIMATE CENTER: WRCC.DRI.EDU 
ARIZONA DEPARTMENT OF WATER RESOURCES: 
NEW.AZWATER.GOV/DROUGHT/DROUGHT-STATUS
ARIZONA STATE CLIMATOLOGIST: AZCLIMATE.ASU.EDU 
NWS TUCSON: WEATHER.GOV/TUCSON
FIRE RESTRICTIONS: WILDLANDFIRE.AZ.GOV/FIRE-RESTRICTIONS

RIVER INFORMATION:
NWS: WATER.WEATHER.GOV/AHPS2/INDEX.PHP?WFO=TWC AND CBRFC.NOAA.GOV 
USGS: WATERDATA.USGS.GOV/AZ/NWIS/RT

.ACKNOWLEDGEMENTS:

DATA FOR THIS STATEMENT WAS COMPILED FROM A NUMBER OF DIFFERENT 
FEDERAL, STATE AND LOCAL AGENCIES. THE DROUGHT MONITOR IS A MULTI-
AGENCY EFFORT INVOLVING THE NOAA NATIONAL WEATHER SERVICE AND 
NATIONAL CENTERS FOR ENVIRONMENTAL INFORMATION (NCEI), THE USDA, 
STATE AND REGIONAL CLIMATE CENTER CLIMATOLOGISTS AND THE NATIONAL 
DROUGHT MITIGATION CENTER.

.CONTACT INFORMATION:

IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS DROUGHT INFORMATION 
STATEMENT, PLEASE CONTACT

NATIONAL WEATHER SERVICE 
540 NORTH PARK AVENUE, SUITE 304
TUCSON, ARIZONA 85719 
PHONE: 520-670-6526 
EMAIL: W-TWC.WEBMASTER@NOAA.GOV

$$

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