894  
AXUS74 KTSA 071638  
DGTTSA  
ARC007-015-033-047-087-131-143-OKC001-021-023-035-037-041-061-077-  
079-091-097-101-105-107-111-113-115-117-121-127-131-135-143-145-  
147-080445-  
 
DROUGHT INFORMATION STATEMENT  
NATIONAL WEATHER SERVICE TULSA OK  
1138 AM CDT FRI JUN 7 2013  
   
..DROUGHT IMPACTS EASE ACROSS EASTERN OKLAHOMA
 
 
SYNOPSIS...  
 
RECENT HEAVY RAINFALL HAS HELPED TO EASE THE DROUGHT CONDITIONS  
ACROSS EASTERN OKLAHOMA. ONLY MODERATE /D1/ DROUGHT AND ABNORMALLY  
DRY /D0/ CONDITIONS REMAIN OVER A PORTION OF NORTHEAST OKLAHOMA.  
THEREFORE...THIS WILL BE THE FINAL DROUGHT INFORMATION STATEMENT  
UNTIL SEVERE /D2/ DROUGHT CONDITIONS RETURN TO EASTERN OKLAHOMA OR  
NORTHWEST ARKANSAS. THIS LAST STATEMENT WILL FOCUS ONLY ON THE CURRENT  
AREA WITH D1 CONDITIONS.  
 
ACCORDING TO THE U.S. DROUGHT MONITOR /USDM/ VALID 4 JUNE  
2013...MODERATE /D1/ DROUGHT CONDITIONS WERE PRESENT OVER  
OSAGE...PAWNEE...WASHINGTON...AND NORTHWEST NOWATA COUNTIES IN  
EASTERN OKLAHOMA.  
 
ABNORMALLY DRY /D0/ CONDITIONS EXIST OVER AREAS OF NORTHERN  
CREEK...TULSA...MAYES...AND SOUTHEAST NOWATA COUNTIES IN EASTERN  
OKLAHOMA.  
 
THE USDM IS A COLLABORATIVE EFFORT BETWEEN SEVERAL GOVERNMENT AND  
ACADEMIC PARTNERS. IT IS A WEEKLY NATIONAL PRODUCT ISSUED ON  
THURSDAY MORNING USING DATA COLLECTED THROUGH THE PREVIOUS TUESDAY  
MORNING...SO IT DOES NOT CONSIDER PRECIPITATION WHICH HAS FALLEN  
AFTER THE DATA CUT-OFF TIME.  
 
THERE ARE FIVE LEVELS OF INTENSITY DEPICTED ON THE U.S. DROUGHT  
MONITOR. THE USDM LEVELS ARE THE FOLLOWING...  
D0 - ABNORMALLY DRY /NOT IN DROUGHT BUT SHOWING DRYNESS/  
D1 - MODERATE DROUGHT  
D2 - SEVERE DROUGHT  
D3 - EXTREME DROUGHT  
D4 - EXCEPTIONAL DROUGHT  
 
THE LOCAL DROUGHT INFORMATION STATEMENT IS ISSUED BY THE NWS OFFICE  
IN TULSA WHEN NEEDED TO SUPPLEMENT THE NATIONAL USDM PRODUCT. LOCAL  
STATEMENTS MAY BE ISSUED BI-WEEKLY DURING TIMES WHEN THE USDM  
INDICATES SEVERE DROUGHT CONDITIONS OR AS LOCAL CONDITIONS WARRANT.  
 
SUMMARY OF IMPACTS...  
 
STATE AND LOCAL ACTIONS.  
THE OKLAHOMA STATE CLIMATE OFFICE /OKLAHOMA CLIMATOLOGICAL SURVEY/  
IS HOSTING RECORDED UPDATES FOCUSED ON THE CURRENT  
CONDITIONS...IMPACTS...AND OUTLOOKS FOR THE ONGOING DROUGHT ACROSS  
THE SOUTHERN PLAINS.  
 
THE LONE CHIMNEY WATER ASSOCIATION...WHICH PROVIDES WATER TO THE  
CITY OF PAWNEE...SEVERAL PAWNEE COUNTY RURAL WATER DISTRICTS...AND  
IS A SECONDARY SOURCE FOR CLEVELAND...IS STILL CONCERNED ABOUT  
RUNNING OUT OF WATER...AND CONSERVATION MEASURES ARE STILL NEEDED  
DESPITE RECENT RAIN. RAINFALL OVER THE AREA DURING THE LAST 10  
DAYS HAS HELPED TO INCREASE THE LAKE LEVEL. HOWEVER...THE LAKE  
STILL REMAINS 9 FEET 3 INCHES BELOW NORMAL...WHICH IS UP FROM THE  
12 FEET BELOW NORMAL PRIOR TO THE RAIN.  
 
SOIL MOISTURE IMPACT.  
THE OKLAHOMA CLIMATOLOGICAL SURVEY /OCS/ DAILY AVERAGED FRACTIONAL  
WATER INDEX FOR 6 JUNE 2013 SHOWS VALUES OF 0.9 TO 1 ACROSS ALL OF  
EASTERN OKLAHOMA /WHERE 1.0 IS SATURATED AND 0.0 IS COMPLETELY  
DRY/ FOR 2...10...AND 24 INCHES BELOW THE GROUND.  
 
AS OF 6 JUNE 2013...THE ARKANSAS-RED BASIN RIVER FORECAST CENTER  
/ABRFC/ GRIDDED SOIL MOISTURE INDICATES THE UPPER ZONE IS 30  
PERCENT OR MORE ACROSS THE D1 AREA...WHICH CORRESPONDS TO 110 TO  
OVER 150 PERCENT OF NORMAL ACROSS THIS AREA. THE LOWER ZONE WAS  
GENERALLY OVER 40 PERCENT FULL...WITH A FEW ISOLATED AREAS OF 20  
TO 40 PERCENT FULL. THESE VALUES ARE 50 TO 100 PERCENT OF NORMAL FOR  
MUCH OF PAWNEE AND ISOLATED PORTIONS OF THE OTHER COUNTIES IN D2.  
THE REMAINDER OF THE D2 AREA IS 100 TO NEAR 150 PERCENT FULL.  
 
THE CLIMATE PREDICTION CENTER /CPC/ SOIL MOISTURE ANOMALY ANALYSIS AS  
OF 6 JUNE 2013 SHOWED NEAR NORMAL SOIL MOISTURE CONDITIONS IN THE  
D2 REGION.  
 
FIRE IMPACTS.  
NO BURN BANS WERE IN EFFECT FOR EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.  
 
CLIMATE SUMMARY...  
 
IN THE LAST 10 DAYS...LOCATIONS NORTHWEST OF I-44 HAVE RECEIVED  
FROM AROUND 4 TO AROUND 9 INCHES OF RAIN. MOST OF THIS RAINFALL  
OCCURRED ON MAY 29...WHEN THIS AREA RECORDED WIDESPREAD 3 TO 5  
INCHES OF RAIN. ADDITIONAL THUNDERSTORM ACTIVITY BROUGHT  
ADDITIONAL ROUNDS OF THE HEAVY RAIN AT THE END OF MAY AND INTO THE  
BEGINNING OF JUNE.  
 
IN THE LAST 30 DAYS ENDING 7 AM JUNE 7...RAINFALL TOTALS HAVE  
RANGED FROM 5 TO 14 INCHES THROUGHOUT EASTERN OKLAHOMA AND  
NORTHWEST ARKANSAS. THIS CORRESPONDS TO 100 TO AROUND 200 PERCENT  
OF NORMAL ACROSS THE D2 AREA. MOST OF THE REMAINDER OF EASTERN  
OKLAHOMA AND NORTHWEST ARKANSAS WAS ALSO ABOVE NORMAL FOR THIS TIME  
PERIOD...THOUGH SOME AREAS OF NORTHEAST AND FAR SOUTHEAST OKLAHOMA  
WERE BELOW NORMAL.  
 
ACCORDING TO OCS...FOR THE LAST 30 DAYS ENDING 6 JUNE 2013...NORTHEAST  
OKLAHOMA RANKS AS THE 9TH WETTEST PERIOD SINCE RECORDS BEGAN IN  
1921. EAST CENTRAL OKLAHOMA RANKS AS THE 10TH WETTEST AND SOUTHEAST  
OKLAHOMA RANKS AS THE 12TH WETTEST PERIOD. FOR THE WATER YEAR TO DATE  
/OCTOBER 1-JUNE 6/...NORTHEAST OKLAHOMA RANKS AS THE 44TH DRIEST ON  
RECORD...EAST CENTRAL OKLAHOMA RANKS AS THE 43RD DRIEST...AND  
SOUTHEAST OKLAHOMA RANKS AS THE 27TH DRIEST. FOR THE PAST YEAR /7  
JUNE 2012-6 JUNE 2013/...NORTHEAST OKLAHOMA RANKS AS THE 15TH  
DRIEST ON RECORD...EAST CENTRAL OKLAHOMA RANKS AS THE 26TH  
DRIEST...AND SOUTHEAST OKLAHOMA RANKS AS THE 20TH DRIEST.  
 
PRECIPITATION/TEMPERATURE OUTLOOK...  
 
NEAR TO ABOVE NORMAL TEMPERATURES ARE EXPECTED OVER THE NEXT 7  
DAYS. THERE IS A CHANCE FOR SHOWERS AND THUNDERSTORMS ACROSS  
NORTHEAST OKLAHOMA ON SUNDAY...WITH DRY CONDITIONS FORECAST FOR  
THE REMAINDER OF THE NEXT 7 DAYS.  
 
THE CLIMATE PREDICTION CENTER /CPC/ 8-14 DAY OUTLOOK CALLS FOR  
AN ENHANCED CHANCE OF ABOVE NORMAL TEMPERATURES FOR ALL OF  
EASTERN OKLAHOMA AND NORTHWEST ARKANSAS. THERE IS A SLIGHTLY  
ENHANCED CHANCE FOR BELOW MEDIAN RAINFALL ACROSS EAST CENTRAL  
AND SOUTHEAST OKLAHOMA...WITH NEAR NORMAL CHANCES ELSEWHERE.  
 
BEYOND THIS PERIOD...THE CPC OUTLOOK FOR JUNE 2013 /ISSUED 31  
MAY 2013/ INDICATES AN EQUAL CHANCE FOR ABOVE...NEAR...AND BELOW  
NORMAL TEMPERATURES AND PRECIPITATION ACROSS EASTERN OKLAHOMA AND  
NORTHWEST ARKANSAS.  
 
THE CPC U.S. SEASONAL DROUGHT OUTLOOK VALID JUNE 6 THROUGH AUGUST  
31 INDICATES DROUGHT CONDITIONS ARE LIKELY TO IMPROVE ACROSS THE  
CURRENT SEVERE /D2/ DROUGHT AREA.  
 
HYDROLOGIC SUMMARY AND OUTLOOK...  
 
ACCORDING TO THE U.S. ARMY CORPS OF ENGINEERS /COE/...MOST OF THE  
MAJOR RESERVOIRS IN EASTERN OKLAHOMA AND NORTHWEST ARKANSAS WERE  
REPORTING LEVELS WITHIN FLOOD CONTROL STORAGE. ONLY ONE RESERVOIR  
REMAINED WITH A CONSERVATION POOL BELOW NORMAL AS OF 7 JUNE  
2013...SKIATOOK LAKE AT 80 PERCENT.  
 
ACCORDING TO THE U.S. GEOLOGICAL SURVEY /USGS/...7-DAY AVERAGE  
STREAMFLOWS FOR ALL OF THE REPORTING STATIONS ACROSS EASTERN  
OKLAHOMA AND NORTHWEST ARKANSAS WERE NEAR NORMAL TO WELL ABOVE  
NORMAL FOR THIS TIME OF YEAR AS OF 6 JUNE 2013.  
 
NEXT ISSUANCE DATE...  
 
THIS WILL BE THE FINAL DROUGHT INFORMATION STATEMENT UNTIL SEVERE  
/D2/ DROUGHT CONDITIONS RETURN TO EASTERN OKLAHOMA OR NORTHWEST  
ARKANSAS.  
 
 
RELATED WEBSITES...  
 
U.S. DROUGHT PORTAL  
HTTP://WWW.DROUGHT.GOV  
 
U.S. DROUGHT MONITOR  
HTTP://WWW.DROUGHT.UNL.EDU/DM/MONITOR.HTML  
 
NATIONAL WEATHER SERVICE TULSA  
HTTP://WWW.SRH.NOAA.GOV/TSA/?N=DROUGHT_INFO  
HTTP://WWW.WEATHER.GOV/TULSA  
 
ARKANSAS-RED BASIN RIVER FORECAST CENTER  
HTTP://WWW.SRH.NOAA.GOV/ABRFC/?N=DROUGHT  
 
OKLAHOMA CLIMATOLOGICAL SURVEY DROUGHT TOOLS  
HTTP://CLIMATE.OK.GOV/INDEX.PHP/CLIMATE/CATEGORY/  
DROUGHT_WILDFIRE  
 
ARKANSAS FORESTRY COMMISSION  
HTTP://WWW.FORESTRY.STATE.AR.US  
 
OKLAHOMA FORESTRY COMMISSION  
HTTP://WWW.FORESTRY.OK.GOV  
 
U.S. ARMY CORPS OF ENGINEERS TULSA DISTRICT  
HTTP://WWW.SWT-WC.USACE.ARMY.MIL  
 
U.S. GEOLOGICAL SURVEY REALTIME DATA  
HTTP://WATERDATA.USGS.GOV/NWIS/RT  
 
CLIMATE PREDICTION CENTER  
HTTP://WWW.CPC.NCEP.NOAA.GOV  
 
 
ACKNOWLEDGMENTS...  
 
THE U.S. DROUGHT MONITOR IS A COLLABORATIVE EFFORT BETWEEN  
SEVERAL GOVERNMENT AND ACADEMIC PARTNERS INCLUDING THE NWS...THE  
NATIONAL CLIMATIC DATA CENTER...THE USDA...STATE AND REGIONAL  
CLIMATOLOGISTS...AND THE NATIONAL DROUGHT MITIGATION CENTER.  
INFORMATION FOR THIS STATEMENT HAS BEEN GATHERED FROM NWS AND FAA  
OBSERVATION SITES...THE OKLAHOMA CLIMATOLOGICAL SURVEY...THE  
USACE AND THE USGS.  
 
 
QUESTIONS OR COMMENTS...  
 
IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS DROUGHT  
INFORMATION STATEMENT...PLEASE CONTACT...  
 
NATIONAL WEATHER SERVICE TULSA  
10159 E. 11TH ST. SUITE 300  
TULSA OKLAHOMA 74128  
PHONE 918-838-7838  
EMAIL SR-TSA.WEBMASTER AT NOAA.GOV  
 

 
 
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