Our Land: New Mexico’s Environmental Past, Present and Future
Tracking the Rio Grande’s Snowpack
Season 6 Episode 22 | 11m 9sVideo has Closed Captions
Tracking the snowpack in the West's river basins and forecasting the snowmelt.
The National Water and Climate Program tracks snowpack in the West’s river basins and provides forecasts for snowmelt. These are updated throughout the first part of the year to plan for streamflows and water supplies later in the year.
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Our Land: New Mexico’s Environmental Past, Present and Future is a local public television program presented by NMPBS
Our Land: New Mexico’s Environmental Past, Present and Future
Tracking the Rio Grande’s Snowpack
Season 6 Episode 22 | 11m 9sVideo has Closed Captions
The National Water and Climate Program tracks snowpack in the West’s river basins and provides forecasts for snowmelt. These are updated throughout the first part of the year to plan for streamflows and water supplies later in the year.
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Learn Moreabout PBS online sponsorship>> Gene: IT IS ONLY JANUARY BUT NOT TOO SOON TO THINK ABOUT THE WATER WE MIGHT SEE FEEDING THE RIO GRANDE THIS SPRING.
THE NATIONAL WATER AND CLIMATE CENTER IS PART OF THE U.S. DEPARTMENT OF AGRICULTURE AND TRACKS SNOW PACK IN THE WEST'S RIVER BASINS, PROVIDING FORECASTS FOR SNOW MELT.
THESE FORECASTS ARE UPDATED THROUGHOUT THE FIRST PART OF THE YEAR TO HELP WATER MANAGERS AND FARMERS AND THE REST OF US KNOW WHAT TO EXPECT.
OUR LAND LAURA PASKUS SPOKE THIS WEEK WITH ANGUS GOODBODY AT THE NATIONAL WATER AND CLIMATE CENTER AND HIS COLLEAGUE JAZ AMMON AT NEW MEXICO SNOW SURVEY PROGRAM IN ALBUQUERQUE TO UNDERSTAND WHERE WE STAND AHEAD OF SPRING.
>> Laura: GUS AND JAZ, THANK YOU FOR JOINING ME TODAY.
I APPRECIATE IT.
GUS, I WOULD LIKE TO START WITH YOU.
THE NRCS JUST PUT OUT THE JANUARY FORECAST FOR THE -- JANUARY WATER FORECAST FOR THE RIO GRANDE.
GENERALLY SPEAKING HOW DO THINGS LOOK RIGHT NOW?
>> Goodbody: GENERALLY SPEAKING THINGS ARE LOOKING BELOW AVERAGE FOR THE MOST PART AS FAR AS OUR EXPECTATION FOR SPRING AND SUMMER RUNOFF.
IT SORT OF DEPENDS ON WHICH PORTION OF THE BASIN WE ARE TALKING ABOUT, BUT RIGHT NOW MOST OF THE EARLY SNOW ACCUMULATION IS FOCUSED ON THE WESTERN PORTION OF THE BASIN IN THE HEADWATERS OF THE SAN JUAN MOUNTAINS, PARTICULARLY, ALONG WOLF CREEK PASS, IN THAT AREA.
>> Laura: SO, JAZ, ON THE GROUND, WHAT ARE YOU SEEING OUT THERE IN THE MOUNTAINS AROUND THE WATERSHED?
>> Ammon: I WAS ON ONE OF OUR WEATHER STATIONS IN THE TAOS AREA, ACTUALLY ON THE PROPERTY OF THE TAOS SKI VALLEY, GENERALLY, AND THINGS WERE PRETTY LOW.
ESPECIALLY I THINK COMPARED TO THE SAME TIME FOR THIS YEAR, LAST YEAR.
SO, WE DID GET SOME ADDITIONAL ACCUMULATION OF SNOW ACTUALLY AFTER OUR SURVEY CYCLE SO THAT IS A LITTLE BIT OPTIMISTIC.
THAT WEEKEND FOLLOWING OUR CUTOFF FOR THIS MOST RECENT SURVEY, OR THIS MOST RECENT FORECAST CYCLE, MAY PLACE A BIT MORE OPTIMISTIC OF A PICTURE, BUT THINGS WERE LOOKING LOW IN THE UPPER RIO GRANDE HEADWATERS WHEN I WAS UP THERE.
>> Laura: I WANT TO REMIND OUR AUDIENCE THAT WHEN WE ARE TALKING ABOUT SNOWPACK IN THESE WATER SUPPLY FORECASTS, WE ARE NOT JUST TALKING ABOUT THE AMOUNT OF SNOW THAT HITS THE GROUND.
CAN YOU TALK ABOUT SOME OF THE OTHER FACTORS THAT GO INTO WHAT AFFECTS THE SNOWPACK?
>> Ammon: OUR PROGRAM SPECIFICALLY REALLY FOCUSES ON THE SNOW/WATER EQUIVALENT IN THE SNOW.
SO, THAT IS SORT OF A DENSITY MEASUREMENT, HOW MUCH ACTUAL WATER IS PRESENT IN THAT DEPTH OF SNOW.
FOR THE RECREATION COMMUNITY, SKIERS OR SNOWMOBILERS, THOSE TYPES OF FOLKS, DEPTH IS PROBABLY THEIR MOST SIGNIFICANT FACTOR THEY ARE FOCUSED ON AND DENSITY MAY BE A SECONDARY FACTOR.
AND FOR US THAT SNOW WATER FACTOR REALLY IS WHAT WE ARE MEASURING.
>> Laura: LAST YEAR YOU AND I TALKED ABOUT SOME OF THESE SAME ISSUES.
CAN YOU EXPLAIN FOR PEOPLE HOW THINGS LIKE MAYBE TEMPERATURE, GROUNDWATER DEFICITS, THINGS LIKE THAT MIGHT AFFECT SNOW PACK?
>> Goodbody: SURE.
SO, IT IS MORE SO ABOUT HOW THE SNOW IS GOING TO MELT IN THE SPRING TIME AND SOME OF THE THINGS YOU MENTIONED REALLY CAN IMPACT THAT.
WHAT WE ARE TALKING ABOUT THERE IS IF WE HAVE DRYER SOILS OR DRYER GROUNDWATER CONDITIONS, IT MAY TAKE MORE OF THE SNOW MELT TO REPLENISH THOSE BEFORE WE SEE SIGNIFICANT RUNOFF IN OUR STREAMS IN SOME CASES.
THIS YEAR IS A LITTLE BIT DIFFERENT THAN THE MOST RECENT YEARS, IN THE SENSE THAT WE HAD QUITE A STRONG MONSOON THIS SUMMER, SO SOME OF THOSE DEFICITS THAT HAVE BEEN QUITE PERSISTENT IN THE RIO GRANDE BASIN IN THE MOST RECENT YEARS, WHILE NOT COMPLETELY GONE, ARE CERTAINLY IN A BETTER POSITION THIS YEAR.
SO WE DO EXPECT RUNOFF SUFFICIENCIES FROM THE SNOW WE GET THIS WINTER TO BE BETTER PERHAPS THAN IN PAST RECENT YEARS.
>> Laura: THAT IS SOMETHING NICE TO HEAR.
I KNOW THAT YOU ALSO LOOK AT THE COLORADO RIVER BASIN WHICH IS HUGE BUT, YOU KNOW, I AM WONDERING JUST A LITTLE BIT HOW THAT WATER SUPPLY FORECAST IS LOOKING THIS YEAR.
>> Goodbody: SO AS A WHOLE, THE UPPER COLORADO IS UP TO A DECENT START THIS YEAR WITH WELL ABOVE NORMAL SNOWPACK IN MUCH OF THE BASIN.
IT IS INTERESTING BECAUSE WEST WIDE THAT HAS SORT OF BEEN THE CASE.
IN A SENSE THE RIO GRANDE BASIN IS THE ONE AND MAYBE THE ARKANSAS, THE TWO BASINS, THAT HAVE BEEN LEFT OUT OF THIS EARLY SEASON MOISTURE TAP THAT WE HAVE SEEN FROM A LOT OF THE STORMS COMING OFF THE PACIFIC.
>> Laura: SO, ACKNOWLEDGING THAT THINGS CAN DEFINITELY CHANGE FOR THE WORSE AND FOR THE BETTER, WHAT CAN WE GENERALLY EXPECT FOR THE WATERSHED OVER THE NEXT FEW MONTHS?
LET'S START WITH YOU GUS AND THEN WE'LL TALK TO JAZ TOO.
>> Goodbody: THAT IS A REALLY IMPORTANT POINT IS THAT WE ARE EARLY IN THE SEASON RIGHT NOW.
SO, WHAT IS ACTUALLY GOING TO DETERMINE THE RUNOFF IN THE SPRING AND SUMMER IS LARGELY BASED ON WHAT IS YET TO HAPPEN THIS YEAR.
YOU KNOW, OUR ABILITY TO LOOK FORWARD AND ACTUALLY PREDICT WITH ANY CERTAINTY WHAT TO EXPECT FROM THE REST OF THIS WINTER IS SOMEWHAT LIMITED.
I WILL SAY THAT WE ARE CURRENTLY IN THE MIDDLE OF A THIRD CONSECUTIVE LA NINA YEAR, WHICH IS GENERALLY NOT REAL FAVORABLE AND FOR SNOW ACCUMULATION IN THE RIO GRANDE BASIN, BUT, AGAIN, IT IS REALLY VARIABLE YEAR TO YEAR, EVEN WITHIN LA NINA TYPE YEARS.
SO I AM NOT RULING ANYTHING OUT AT THIS POINT.
THE THING WE KNOW NOW IS WE ARE OFF TO LESS SNOW THAN WOULD BE TYPICAL FOR THIS TIME OF THE YEAR WHICH DOES NOT NECESSARILY BODE WELL FOR WHAT IS GOING TO HAPPEN IN THE SPRING AND SUMMER BUT THERE IS STILL TIME TO TURN THAT MESSAGE AROUND.
>> Laura: JAZ, DO YOU WANT TO ADD TO THAT?
>> Ammon: I WOULD JUST SAY THAT AS THOSE FOLKS WHO LIVE IN NEW MEXICO WILL BE WELL AWARE, OUR LANDSCAPE HERE IS VERY WIDELY VARIABLE THROUGHOUT THE STATE SO THE UPPER RIO GRANDE IS GOING TO BE A LOT DIFFERENT THAN MAYBE A DIFFERENT MOUNTAIN RANGE IN THE GILA OR OTHER AREAS SO WHERE YOU LIVE SPECIFICALLY MAY GET SOME KIND ANOMALOUS SITUATION OR OUTLOOK ACROSS THE RIO GRANDE MAY NOT REFLECT THAT SPECIFIC AREA VERY ACCURATELY, BUT GENERALLY WE ARE OPTIMISTIC THAT MOST DATA IS STILL YET TO COME SO WE CAN'T DRAW ANY STRONG CONCLUSIONS AT THIS POINT BEING THE JANUARY FORECAST CYCLE.
>> Laura: SO, I KNOW, YOU KNOW, WE HAVE HAD SOME ROUGH YEARS FOR FARMERS, FOR THE CITY AND CERTAINLY FOR THE RIO GRANDE ITSELF.
WE WERE KIND OF BALED OUT LATE IN THE SEASON LAST YEAR WITH SOME GOOD MONSOONS BUT IT SEEMS TO ME LIKE IT IS NOT TOO EARLY FOR PEOPLE TO BE PAYING ATTENTION TO WHAT IS HAPPENING UP IN THE MOUNTAINS.
I AM CURIOUS FROM BOTH OF YOU WHAT YOU WISH THE REST OF US WOULD MAYBE BE PAYING BETTER ATTENTION TO.
>> Goodbody: IT IS SORT OF BACK TO THE SAME THING, THAT WE ARE LIMITED AS FAR AS BEING ABLE TO PREDICT INTO THE FUTURE.
AND A LOT OF THE WEATHER THAT IS STILL TO COME THIS SEASON IS REALLY WHAT IS GOING TO DICTATE WHAT OR RUNOFF IS.
SO A LOT OF OUR FORECASTING, PARTICULARLY IN THE EARLY SEASON, IS MORE ABOUT GIVING A RANGE OF POSSIBLE OUTCOMES AND THEIR LIKELIHOODS ESSENTIALLY.
SO, I ENCOURAGE PEOPLE, YOU KNOW, TO LOOK AT THE FULL PROBABILISTIC FORECAST AND TRY TO DIG A LITTLE DEEPER THAN IS IT GOING TO BE ABOVE OR BELOW, BECAUSE JUST SOME THINGS ARE JUST NOT KNOWABLE.
>> Laura: WHAT ABOUT YOU JAZ?
ESPECIALLY, YOU'RE OUT CHECKING THE SNOW LEVELS AND STATIONS.
WHAT DO YOU HOPE THAT THE REST OF US WILL PAY ATTENTION TO THROUGHOUT THE REST OF THE SEASON?
>> Ammon: WELL, ONE OF THE INTERESTING THINGS ABOUT THE RIO GRANDE AND THESE OTHER MAJOR RIVER BASINS IS THAT THEY ARE HIGHLY MANAGED BASINS SO OUR FORECASTS ARE SPECIFICALLY FOR UNIMPAIRED STREAM FLOWS AND WE HAVE A LOT OF RESERVOIRS AND OTHER FACTORS IN THOSE WATERSHEDS THAT WILL DETERMINE HOW MUCH WATER IS IN THAT RIVER AT YOUR PARTICULAR LOCATION.
SO, IT IS HARD TO DRAW A DIRECT COMPARISON BETWEEN SNOW ACCUMULATION, SNOW WATER EQUIVALENT AND AMOUNT OF WATER THAT IS ACTUALLY IN THE RIVER.
>> Laura: ONE LAST QUESTION.
I AM CURIOUS, YOU KNOW, I FEEL LIKE ONE OF THE THINGS WE TALKED ABOUT HERE ON THE SHOW IS THERE ARE CERTAIN THINGS THAT ARE VERY PREDICTABLE IN TERMS OF CLIMATE CHANGE THAT A WARMER WORLD FOR THE SOUTHWEST TENDS TO BE A DRYER WORLD, BUT WE ALSO TALK A LOT ABOUT HOW CLIMATE CHANGE HAS MADE CERTAIN THINGS LESS PREDICTABLE AND LESS SURE.
I AM CURIOUS WHAT YOU BOTH MIGHT HAVE TO SAY ABOUT, YOU KNOW, WHAT WE CAN ANTICIPATE IN FUTURE YEARS WITH RESPECT TO CERTAINTY OR UNCERTAINTY IN THIS CHANGING CLIMATE?
>> Goodbody: THAT IS AN INTERESTING QUESTION.
YOU KNOW, A LOT OF THE BASIS FOR OUR UNDERSTANDING OF THESE SYSTEMS WITH REGARD TO RUNOFF DOES HAVE TO DO WITH WHAT WE HAVE OBSERVED IN THE PAST, TO SOME DEGREE.
PERHAPS, THE BIGGEST THING THAT CLIMATE CHANGE PRESENTS AS A CHALLENGE TO US FOR WATER SUPPLY FORECASTING IS THAT SOME OF THOSE PIECES MAY NOT BE STABLE, MEANING THEY MAY NOT BEHAVE THE SAME WAY THEY HAVE IN THE PAST, WHICH ULTIMATELY DOES LEAD TO INCREASED POTENTIAL UNCERTAINTY IN OUR FORECASTING GOING FORWARD.
THAT SAID, I WILL SAY THAT A LOT OF THE CHANGES WE ARE EXPERIENCING FROM CLIMATE CHANGE TENDS TO BE INCREMENTAL IN NATURE AND THEREFORE, ESPECIALLY IN THE CONTEXT OF THE UNCERTAINTY WITHIN FORECASTING ALREADY, I AM BASICALLY SAYING IT IS QUITE UNCERTAIN AS IT IS RIGHT NOW.
SO OF THESE NEW UNCERTAINTIES, WHILE CONCERNING DO NOT INVALIDATE THE CURRENT FORECASTS.
>> Laura: ANY LAST WORDS, JAZ?
>> Ammon: I WON'T ADD TOO MUCH TO WHAT GUS SAID BUT I WILL SAY KEEP -- STAY POSTED FOR WHAT IS YET TO COME.
WE NORMALLY DO A SUMMATION OF THE CONDITIONS WE HAVE OBSERVED THROUGHOUT THE WINTER, LATER ON IN THE SPRING, FOR THE RIO GRANDE BASIN.
SO THAT IS WHEN WE REALLY HAVE A MUCH CLEARER PICTURE OF WHAT TO EXPECT MOVING FORWARD INTO THE SUMMER AND THE IRRIGATION SEASON.
>> Laura: THANK YOU BOTH SO MUCH.
WE'LL ALL DEFINITELY BE PAYING ATTENTION.
SO, THANK YOU.
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Our Land: New Mexico’s Environmental Past, Present and Future is a local public television program presented by NMPBS