503 AXUS71 KLWX 311251 DGTLWX DCC001-MDC001-003-005-009-013-017-021-025-027-031-033-037-043-510- VAC003-013-015-043-047-059-061-069-079-091-099-107-113-125-137-139- 153-157-165-171-177-179-187-510-540-600-610-630-660-683-685-790-820- 840-WVC003-023-027-031-037-057-065-071-080200- DROUGHT INFORMATION STATEMENT NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 850 AM EDT WED OCT 31 2012 ...SANDY DECIMATES THE DROUGHT... SYNOPSIS... AS OF OCTOBER 31ST 2012...CYCLONE SANDY BROUGHT THREE TO NINE INCHES OF RAIN ACROSS THE ENTIRE AREA. ANY LINGERING SHORT TERM DRYNESS HAS BEEN OVERCOME BY RECENT WET CONDITIONS. SUMMARY OF IMPACTS... NO DROUGHT IMPACTS ARE KNOWN ACROSS THE AREA. CLIMATE SUMMARY... AS MENTIONED ABOVE...SANDY BROUGHT THREE TO NINE INCHES OF RAIN ACROSS MOST OF THE REGION. SOME SITE STATISTICS /DATA IS COMPARED TO 1981-2010 NORMALS/: REAGAN NATIONAL AIRPORT...THROUGH OCTOBER 30TH... LAST 30 DAYS ... 5.82 INCHES ...-SURPLUS- 2.53 INCHES ...177 PCT LAST 60 DAYS ... 10.11 INCHES ...-SURPLUS- 3.10 INCHES ...144 PCT LAST 90 DAYS ... 12.89 INCHES ...-SURPLUS- 3.06 INCHES ...131 PCT LAST 180 DAYS ... 21.19 INCHES ...-SURPLUS- 0.10 INCH ...101 PCT LAST 365 DAYS ... 35.66 INCHES ... DEFICIT 3.97 INCHES ... 90 PCT SINCE JAN 2012... 28.82 INCHES ... DEFICIT 4.59 INCHES ... 86 PCT SINCE JAN 2011... 75.71 INCHES ...-SURPLUS- 2.56 INCHES ...104 PCT WASHINGTON DULLES AIRPORT...THROUGH OCTOBER 30TH... LAST 30 DAYS ... 8.87 INCHES ...-SURPLUS- 5.73 INCHES ...283 PCT LAST 60 DAYS ... 11.58 INCHES ...-SURPLUS- 4.52 INCHES ...164 PCT LAST 90 DAYS ... 14.04 INCHES ...-SURPLUS- 3.57 INCHES ...134 PCT LAST 180 DAYS ... 24.10 INCHES ...-SURPLUS- 1.70 INCHES ...108 PCT LAST 365 DAYS ... 38.27 INCHES ... DEFICIT 3.16 INCHES ... 92 PCT SINCE JAN 2012... 31.63 INCHES ... DEFICIT 3.43 INCHES ... 90 PCT SINCE JAN 2011... 77.83 INCHES ...-SURPLUS- 1.23 INCHES ...102 PCT BALTIMORE WASHINGTON AIRPORT...THROUGH OCTOBER 30TH... LAST 30 DAYS ... 8.92 INCHES ...-SURPLUS- 5.70 INCHES ...277 PCT LAST 60 DAYS ... 11.13 INCHES ...-SURPLUS- 3.88 INCHES ...154 PCT LAST 90 DAYS ... 16.95 INCHES ...-SURPLUS- 6.53 INCHES ...163 PCT LAST 180 DAYS ... 24.78 INCHES ...-SURPLUS- 3.06 INCHES ...114 PCT LAST 365 DAYS ... 40.55 INCHES ... DEFICIT 1.22 INCHES ... 97 PCT SINCE JAN 2012... 33.60 INCHES ... DEFICIT 1.50 INCHES ... 96 PCT SINCE JAN 2011... 90.12 INCHES ...-SURPLUS 13.14 INCHES ...117 PCT CHARLOTTESVILLE AIRPORT...THROUGH OCTOBER 30TH... LAST 30 DAYS ... 4.37 INCHES ...-SURPLUS- 1.35 INCHES ...145 PCT LAST 60 DAYS ... 6.67 INCHES ... DEFICIT 0.83 INCH ... 89 PCT LAST 90 DAYS ... 11.42 INCHES ...-SURPLUS- 0.43 INCH ...104 PCT LAST 180 DAYS ... 22.48 INCHES ... DEFICIT 0.36 INCH ... 98 PCT LAST 365 DAYS ... 41.31 INCHES ... DEFICIT 1.31 INCHES ... 97 PCT SINCE JAN 2012... 33.81 INCHES ... DEFICIT 1.83 INCHES ... 95 PCT SINCE JAN 2011... 82.12 INCHES ...-SURPLUS- 3.77 INCHES ...105 PCT NOTE: DUE TO A RELOCATION OF THE EQUIPMENT...AND THE JUNE DERECHO... THERE ARE THREE DAYS OF MISSING DATA AT CHARLOTTESVILLE. ALTHOUGH THE OFFICIAL CLIMATE RECORD SHOWS MISSING DATA...ESTIMATED VALUES WERE USED ON THOSE DAYS TO PROVIDE A FULL DATASET FOR THE TABLE ABOVE. THEREFORE...THIS TABLE DIFFERS SLIGHTLY FROM THE OFFICIAL CLIMATE RECORD. MARTINSBURG AIRPORT...THROUGH OCTOBER 30TH... LAST 30 DAYS ... 3.44 INCHES ...-SURPLUS- 0.49 INCH ...117 PCT LAST 60 DAYS ... 7.25 INCHES ...-SURPLUS- 0.73 INCH ...111 PCT LAST 90 DAYS ... 9.65 INCHES ...-SURPLUS- 0.16 INCH ...102 PCT LAST 180 DAYS ... 21.08 INCHES ...-SURPLUS- 0.34 INCH ...102 PCT LAST 365 DAYS ... 36.52 INCHES ... DEFICIT 2.08 INCHES ... 95 PCT SINCE JAN 2012... 30.26 INCHES ... DEFICIT 2.50 INCHES ... 92 PCT SINCE JAN 2011... 77.11 INCHES ...-SURPLUS- 5.75 INCHES ...108 PCT NOTE: DUE TO THE JUNE DERECHO...THERE ARE TWO DAYS OF MISSING DATA AT MARTINSBURG. ALTHOUGH THE OFFICIAL CLIMATE RECORD SHOWS MISSING DATA...ESTIMATED VALUES WERE USED ON THOSE DAYS TO PROVIDE A FULL DATASET FOR THE TABLE ABOVE. THEREFORE...THIS TABLE DIFFERS SLIGHTLY FROM THE OFFICIAL CLIMATE RECORD. PRECIPITATION/TEMPERATURE OUTLOOK... DRY CONDITIONS ARE EXPECTED THROUGH THE END OF THE WEEK. HYDROLOGIC SUMMARY AND OUTLOOK... AS OF OCTOBER 31ST...STREAMFLOWS ARE EXTREMELY HIGH DUE TO SANDY. SOIL MOISTURE AND GROUNDWATER ARE ALSO HIGH. NEXT ISSUANCE DATE... THIS IS THE FINAL STATEMENT UNTIL MODERATE DROUGHT /D1/ CONDITIONS ARE OBSERVED IN A SIGNIFICANT PORTION OF THE AREA. && RELATED WEB SITES... ADDITIONAL INFORMATION ON CURRENT DROUGHT CONDITIONS MAY BE FOUND AT THE FOLLOWING WEB ADDRESSES /USE LOWER CASE LETTERS/... DROUGHT PORTAL...HTTP://WWW.DROUGHT.GOV U.S. DROUGHT MONITOR...HTTP://DROUGHTMONITOR.UNL.EDU CLIMATE PREDICTION CENTER /CPC/...HTTP://WWW.CPC.NCEP.NOAA.GOV ADDITIONAL RIVER INFORMATION... NWS...HTTP://WATER.WEATHER.GOV USGS...HTTP://WATER.USGS.GOV USACE...HTTP://WWW.NAB.USACE.ARMY.MIL ACKNOWLEDGMENTS... THE DROUGHT MONITOR IS A MULTI-AGENCY EFFORT INVOLVING THE NATIONAL WEATHER SERVICE AND NATIONAL CLIMATIC DATA CENTER...THE USDA...STATE AND REGIONAL CENTER CLIMATOLOGISTS AND THE NATIONAL DROUGHT MITIGATION CENTER. INFORMATION FOR THIS STATEMENT HAS BEEN GATHERED FROM NWS AND FAA OBSERVATION SITES...STATE COOPERATIVE EXTENSION SERVICES...THE STATES OF VIRGINIA AND MARYLAND...THE US DEPARTMENT OF AGRICULTURE...US ARMY CORPS OF ENGINEERS AND US GEOLOGICAL SURVEY. QUESTIONS OR COMMENTS... FOR QUESTIONS OR COMMENTS ABOUT THIS DROUGHT INFORMATION STATEMENT...CONTACT: NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON 43858 WEATHER SERVICE RD STERLING VA 20166 PHONE...703-996-2200 LWXWEBMASTER@NOAA.GOV $$ JE