Weather for Caldwell, Idaho
Lat: 43.66N, Lon: 116.67W
Wx Zone: IDZ012
CWA Used: BOI
Idaho Drought MonitorThe Idaho Drought monitor is a subset of the United States Monitor, issued every Thursday morning, based on drought conditions the previous Tuesday. The map below shows the current drought level around the state, and the percent of Idaho land area in each drought level compared to the previous week. Read an explanation of the drought intensities and what they mean. |
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Idaho Hydrologic Information StatementNote that if drought conditions are not being experienced, or in the case of river flooding or heavy rain, this statement may be used to indicate river flows or flood potential. 000 FGUS75 KBOI 211821 ESFBOI 210600- WATER SUPPLY OUTLOOK NATIONAL WEATHER SERVICE 1220 PM MDT TUE MAY 21 2013 ...IDAHO WATER SUPPLY AND SPRING FLOOD OUTLOOK AS OF MAY 2013... ...NEAR NORMAL TO BELOW NORMAL RUNOFF VOLUMES ACROSS IDAHO... ...SPRING FLOOD RISK FOR NORTHERN IDAHO IS NEAR AVERAGE... ...SPRING FLOOD RISK FOR SOUTHERN IDAHO IS BELOW AVERAGE... THE NATIONAL WEATHER SERVICE WATER SUPPLY OUTLOOK FOR IDAHO FOR THE 2013 WATER YEAR PROJECTS NEAR NORMAL TO BELOW NORMAL RUNOFF VOLUMES ACROSS THE STATE AS OF MAY 21. WATER SUPPLY PROJECTIONS ARE MOST FAVORABLE FOR THE NORTHERN PORTION OF THE STATE...AND BECOME PROGRESSIVELY LESS FAVORABLE ACROSS CENTRAL AND SOUTHERN IDAHO. AFTER A REASONABLY GOOD START TO THE 2013 WATER YEAR...CONSECUTIVE MONTHS OF WELL BELOW NORMAL PRECIPITATION HAVE OCCURRED ACROSS CENTRAL AND SOUTHERN IDAHO SINCE JANUARY...RESULTING IN ABNORMALLY DRY CONDITIONS ACROSS CENTRAL AND SOUTHERN IDAHO...WITH POCKETS OF MODERATE DROUGHT ACROSS THE SOUTH. THE STORM TRACK HAS BEEN A LITTLE MORE FAVORABLE FOR NORTHERN IDAHO THIS SPRING...RESULTING IN AREAS OF NORMAL TO ABOVE NORMAL PRECIPITATION IN APRIL...BUT IT HAS BEEN QUITE DRY IN MAY. TEMPERATURES OVER THE PAST 30 DAYS HAVE GENERALLY BEEN ABOVE NORMAL FOR THE WEST CENTRAL AND PANHANDLE REGIONS OF IDAHO...AND NEAR NORMAL ELSEWHERE. THE SEASONAL TRANSITION TO WARMER WEATHER BROUGHT INCREASED SNOWMELT ALONG WITH HIGHER FLOWS TO MANY IDAHO RIVERS AND STREAM IN LATE APRIL AND MAY. HOWEVER...SOME BASINS ACROSS SOUTHERN IDAHO WHERE WINTER SNOWPACK WAS THE POOREST...HAVE ALREADY EXPERIENCED THEIR SNOWMELT PEAK FLOWS...AND HAVE EITHER ALREADY MELTED OUT...OR ARE ON PACE TO MELT OUT SEVERAL WEEKS AHEAD OF NORMAL. THE SPRING FLOOD THREAT FOR SOUTHERN IDAHO IS BELOW AVERAGE DUE TO THE POOR SNOWPACK AND EARLY MELT. BETTER SNOW CONDITIONS ACROSS NORTHERN IDAHO SUPPORT ABOUT AVERAGE SPRING FLOOD THREAT...ALTHOUGH LARGELY DEPENDENT ON SPRING RAINS. AS HIGH ELEVATION SNOWMELT CONTINUES OVER THE NEXT MONTH...REMEMBER THAT IT IS NOT ALWAYS POSSIBLE TO FORECAST SPECIFIC RAIN STORMS...OR RAIN AND SNOWMELT EVENTS MORE THAN 4 TO 7 DAYS INTO THE FUTURE. THEREFORE...SHORT RANGE RIVER FORECASTS SHOULD BE MONITORED CLOSELY IF A RAIN EVENT OCCURS. DETAILS REGARDING POSSIBLE OR RESULTING FLOODING WILL BE AVAILABLE IN SHORT TERM OUTLOOKS...FLOOD WATCHES AND FLOOD WARNINGS ISSUED BY THE NATIONAL WEATHER SERVICE. REFER TO SECTIONS BELOW AND LINKS PROVIDED FOR THE LATEST DETAILS REGARDING WATER SUPPLY FORECASTS FOR SPECIFIC LOCATIONS... SNOWPACK...PRECIPITATION...RESERVOIR CONDITIONS...DROUGHT...AND LONG TERM WEATHER OUTLOOKS. WATER SUPPLY FORECASTS... WATER SUPPLY FORECASTS ISSUED BY THE NORTHWEST RIVER FORECAST CENTER AND THE COLORADO BASIN RIVER FORECAST CENTER ARE ISSUED FREQUENTLY...ON EITHER A WEEKLY OR DAILY BASIS. FOR THE LATEST WATER SUPPLY FORECASTS FOR IDAHO PLEASE REFER TO THE FOLLOWING WEB SITES. NATIONAL WEATHER SERVICE-NORTHWEST RIVER FORECAST CENTER WWW.NWRFC.NOAA.GOV/WS NATIONAL WEATHER SERVICE-COLORADO BASIN RIVER FORECAST CENTER WWW.CBRFC.NOAA.GOV/GMAP/CMAP2.PHP?CON=WSUP USDA-NATURAL RESOURCES CONSERVATION SERVICE WWW.ID.NRCS.USDA.GOV/SNOW/WATERSUPPLY SNOWPACK INFORMATION... ACCORDING TO NRCS SNOTEL DATA...AS OF MAY 21...FROM THE CLEARWATER BASIN TO THE CANADIAN BORDER SNOWPACK PERCENTAGES WERE 73 TO 84 PERCENT OF NORMAL. TO THE SOUTH...SEVERAL SUB BASINS IN THE UPPER SNAKE REGION WERE NEAR 55 PERCENT OF NORMAL. FOR THE REST OF SOUTHERN IDAHO...INCLUDING THE SALMON BASIN...SNOWPACK WAS GENERALLY LESS THAN 45 PERCENT OF NORMAL WITH SOME BASINS ALREADY MELTED OUT. CURRENT DAY SNOW WATER EQUIVALENT AND PERCENT OF NORMAL SNOWPACK INFORMATION CAN BE FOUND AT THE FOLLOWING WEB SITES. NATIONAL WEATHER SERVICE-NORTHWEST RIVER FORECAST CENTER WWW.NWRFC.NOAA.GOV/SNOW NATIONAL WEATHER SERVICE-COLORADO BASIN RIVER FORECAST CENTER WWW.CBRFC.NOAA.GOV/GMAP/CMAP2.PHP?CON=SNOW NATIONAL WEATHER SERVICE-NATIONAL HYDROLOGIC REMOTE SENSING CENTER WWW.NOHRSC.NWS.GOV USDA-NATURAL RESOURCES CONSERVATION SERVICE WWW.ID.NRCS.USDA.GOV/SNOW/DATA/CURRENT.HTML RESERVOIR INFORMATION... MOST RESERVOIRS IN IDAHO WERE HOLDING NEAR AVERAGE STORAGE AT THE BEGINNING OF MAY. THERE WERE SOME EXCEPTIONS ACROSS SOUTHERN IDAHO...WHERE RESERVOIR STORAGE WAS ONLY 45 TO 70 PERCENT OF AVERAGE. THE LATEST RESERVOIR STORAGE INFORMATION CAN BE FOUND AT THE FOLLOWING WEB SITES BUREAU OF RECLAMATION RESERVOIR STORAGE WWW.USBR.GOV/PN/HYDROMET/SELECT.HTML USDA-NATURAL RESOURCES CONSERVATION SERVICE WWW.WCC.NRCS.USDA.GOV/CGIBIN/RESV-GRAPH.PL?STATE=ID DROUGHT CONDITIONS... ACCORDING TO THE U.S. DROUGHT MONITOR...AS OF MAY 21...ABNORMALLY DRY CONDITIONS EXISTED ACROSS MOST OF CENTRAL AND SOUTHERN IDAHO...WITH AREAS OF MODERATE DROUGHT CONDITIONS ACROSS SOUTHEAST IDAHO...AND THE TREASURE VALLEY AND OWYHEE MOUNTAINS IN SOUTHWEST IDAHO. THE IDAHO DEPARTMENT OF WATER RESOURCES POSTED DROUGHT DECLARATIONS FOR FOUR COUNTIES IN SOUTH CENTRAL AND SOUTHEAST IDAHO ON MAY 14. THE LATEST DROUGHT CONDITIONS AND COUNTY DROUGHT DECLARATIONS CAN BE FOUND AT THE FOLLOWING WEB SITES. U.S. DROUGHT MONITOR WWW.DROUGHTMONITOR.UNL.EDU U.S. DROUGHT PORTAL WWW.DROUGHT.GOV IDAHO DEPARTMENT OF WATER RESOURCES WWW.IDWR.IDAHO.GOV/NEWS/DROUGHT/DROUGHT.HTM PEAK FLOW FORECASTS... THE LATEST PEAK FLOW FORECASTS CAN BE FOUND AT THE FOLLOWING WEB SITES. NORTHWEST RIVER FORECAST CENTER PEAK FLOW WWW.NWRFC.NOAA.GOV/PEAK COLORADO BASIN RIVER FORECAST CENTER PEAK FLOW WWW.CBRFC.NOAA.GOV/GMAP/LIST/LIST.PHP?TYPE=PEAK TEMPERATURE AND PRECIPITATION OUTLOOKS... ACCORDING TO THE CLIMATE PREDICTION CENTER JUNE OUTLOOK... PROBABILITIES FAVOR WARMER THAN NORMAL TEMPERATURES AND BELOW NORMAL PRECIPITATION ACROSS IDAHO. FOR JULY THROUGH SEPTEMBER...PROBABILITIES FAVOR WARMER THAN NORMAL TEMPERATURES ACROSS IDAHO...AND BELOW NORMAL PRECIPITATION FOR ALL BUT THE SOUTHEAST PORTION OF THE STATE. THE LATEST LONG RANGE AND SEASONAL OUTLOOKS ISSUED BY THE NATIONAL WEATHER SERVICE CLIMATE PREDICTION CENTER CAN BE FOUND AT THE FOLLOWING WEB SITE. WWW.CPC.NCEP.NOAA.GOV $$ TAL |