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LongTermOutlookApril2004
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LongTermOutlookApril2004
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Last modified
10/4/2011 3:53:32 PM
Creation date
9/30/2006 10:30:29 AM
Metadata
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Template:
Drought Mitigation
Title
Long Term Weather Outlook
Date
4/13/2004
Description
Presentation
Basin
Statewide
Drought Mitigation - Doc Type
Presentation
Document Relationships
ClimateUpdateApril2004
(Attachment)
Path:
\Drought Mitigation\Backfile
NRCSApril2004
(Attachment)
Path:
\Drought Mitigation\Backfile
ShortTermOutlookApril2004
(Attachment)
Path:
\Drought Mitigation\Backfile
SWSIReportApril2004
(Attachment)
Path:
\Drought Mitigation\Backfile
WATFAgendaApril2004
(Attachment)
Path:
\Drought Mitigation\Backfile
WATFSummaryApril2004
(Attachment)
Path:
\Drought Mitigation\Backfile
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<br />Executive Summary (April 19,2004) <br /> <br />I. The most recent EI Nino event - declared over last June - tried to make a comeback last tall, <br />but has been 'clinically dead' for some time now. Ncar-neutral EN SO conditions remain the <br />safest bet for the next few months, with dwindling hope remaining for a resurgent EI Nitio <br />later this year. <br /> <br />2. After a disappointing March that produced early snowmelt in elevations below about 9,000 <br />n., and reducing the snowpack during a time of year when it should be growing the tastest, <br />early April tried to make up for it. This appears to have benefitted the Front Range, the <br />Sangre de Cristos, and the San Juans the most, while the northwestern and northeastern <br />corners of Colorado receivcd the least. Despite some resemblance of March 2004 with April <br />2002, this docs not look like a repeat of that extreme spring. On the other hand, despite a <br />wet start in parts of Colorado, one should not expect the rest of April to remain wet. <br /> <br />3. In my experimental forecasts for April through June 2004, overall tilts in the odds remain <br />weak (none bigger than +/-8%), and unsettled. After last month's drastic drop in forecast <br />amounts, the latest iteration keeps the mountains of north-central Colorado and adjacent <br />plains into WY on the dry side, while the plains south and east of Denver continue their tilt <br />towards wetness. A first look at the monsoon season favors a wetter than normal monsoon <br />both from Arizona into eastern Utah, as well as over the Southern Plains from NM eastward. <br />Six out often forecast regions, including most of Colorado, appear undecided at this point. <br /> <br />4. Bottomline: The roller-coaster ride of alternating wet and dry spells for Colorado will <br />continue into the foreseeahle future. Until the tropical Pacific "makes up its mind" whether <br />to slide into EI Nino or La Nina, less predictable shorter-tenn variability will dominate the <br />picture, leading to volatile climate forecasts and increased uncertainty. The good news is <br />that there arc no strong indications of renewed drought in the near future. <br />
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