Wednesday Afternoon Model Update

10/21/26 Wednesday 12:30 pm

The models initialized pretty well on rain start times across the forecast area.  That is encouraging or scary depending on your perspective.

While I am thinking about it, keep this in the back of your mind. If you have watched any weather media lately, you have probably heard about Super Typhoon Champi (pronounced Chompy). Champi is big enough that it could recurve all the way from Asia to Alaska’s Bering Sea, wreaking complete havoc on the fishing fleet (probably ending up in next year’s Deadliest Catch episodes).

From there it could slide down the Canadian Coast, then the Pacific Northwest Coast, slide all the way down to the Central/Southern California Coast, and end up as a big storm in our backyards. I don’t have models that track that far yet; this is pure intuition.  I might be wrong; I’ll have a better idea in 7-10 days when the models can pick it up.

I got dangerously close to heading down the rabbit hole there…

The WPC NOAA Weather Prediction Center) finally updated their ERO (Excessive Rain Outlook) today; nothing like waiting until the last minute.

Here are the latest crazy model runs. I will not be surprised when the reports are logged if we see totals higher than forecast guidance.

These forecast totals run from 6 am this morning through Sunday night.

T=Telluride C=Cortez M=Mancos D=Durango B=Bayfield P=Pagosa Springs WC=Wolf Creek Pass

NBM

German

GFS AI

European

Canadian

I’ll be back in the morning.

Venmo: @Jeff-Givens-11 

OR

Click here to DONATE with PayPal

Cash App users:  $JGDWG

ZELLE: jgivenscbr@gmail.com

Prefer to send a check? Click below to request instructions.

Click here to submit any question

Submit or search Precipitation Report

Wednesday Flood Potential

10/21/26 Wednesday 9 am

Before I get started, I have received many emails asking about the area in and around Vallecito and Lemon Reservoirs. First, I was as surprised as everyone else. Perhaps it will be more like when than if. We will see.

Los Pinos, Florida, and Vallecito Creek all have gauges and are tracked by the River Forecast Center. I can monitor flows. So if they somehow dont catch the rising flows, I can let everyone know what I am seeing on the near-live observations.

I won’t share the little graph portion anymore, just the data. Two changes: La Plata River at Hesperus and the Animas at Cedar Hill, near the New Mexico border, are now forecast to be above action stage at peak flow. Action stage means you should monitor the situation closely, and you may experience minor flooding in low-lying areas.

All of these peak times are subject to change by NOAA’s River Forecast Center.

On these data boxes next to “Forecast Peak in the parentheses have the projected time and date of the peak. In the example below for Animas Durango, it is (10/24/00z). That is 6 pm Friday.

 Animas Durango near Science Center:

Notice the forecast peak has increased and sits (for now) a couple of inches or less below action stage. If you are close to creeks that flow into the Animas, I suggest you come up with a game plan.  Or contact the County EMS. This also applies to the Trimble area and areas along 550 between Trimble and Animas City.

Forecast Date: 2026-10-21 15:00Z
Forecast Peak: 6.97 ft, 7213 cfs (10/24/00Z)
Critical Stages/Flows: Flood: 8.0 ft, 10000 cfs – Action: 7.0 ft, 7288 cfs
Current Observation: 3.54 ft, 1142 cfs (10/21/14Z)

 

La Plata River at Hesperus: The forecast peak has increased above the action stage.  Peak is forecast for Friday at 6 am

Forecast Date: 2026-10-21 15:00Z
Forecast Peak: 5.07 ft, 487 cfs (10/23/12Z)
Critical Stages/Flows: Flood: 5.5 ft, 685 cfs – Action: 5.0 ft, 453 cfs
Current Observation: 3.94 ft, 71 cfs (10/21/14Z)

 

Mancos River in Mancos is no longer on the list. I don’t understand enough about it to explain why. I am just telling you what their models are predicting.

 

La Plata River at CO/NM state line: Is still right below action stage. The peak is forecast for Friday at noon

Forecast Date: 2026-10-21 15:00Z
Forecast Peak: 7.73 ft, 802 cfs (10/23/18Z)
Critical Stages/Flows: Flood: 9.0 ft, 1220 cfs – Action: 8.0 ft, 884 cfs
Current Observation: 3.62 ft, 10 cfs (10/21/15Z)

 

Animas River at Cedar Hill near CO/NM border: Forecast peak has increased. It is now above the action stage. Forecast peak is Friday at 10 pm.

Forecast Date: 2026-10-21 15:00Z
Forecast Peak: 9.59 ft, 7760 cfs (10/24/04Z)
Critical Stages/Flows: Flood: 10.5 ft, 10411 cfs – Action: 9.5 ft, 7524 cfs
Current Observation: 5.75 ft, 1281 cfs (10/21/15Z)

 

San Juan River at Pagosa Springs: The forecast peak remains above flood stage. The peak forecast is Friday at 6 am. If this verifies, it will be the 10th highest peak on record for this location. 1 through 8 were decades ago. 9th highest occurred 5/23/2005.

Forecast Date: 2026-10-21 15:00Z
Forecast Peak: 10.73 ft, 4705 cfs (10/23/12Z)
Critical Stages/Flows: Flood: 10.5 ft, 4477 cfs – Action: 9.5 ft, 3487 cfs
Current Observation: 5.51 ft, 470 cfs (10/21/15Z)

 

My next weather model update will be out around 2-3 pm.

Venmo: @Jeff-Givens-11 

OR

Click here to DONATE with PayPal

Cash App users:  $JGDWG

ZELLE: jgivenscbr@gmail.com

Prefer to send a check? Click below to request instructions.

Click here to submit any question

Submit or search Precipitation Report

Wednesday Morning

10/21/26 Wednesday 3:30 am

 Overview

Showers should start moving into the western forecast area this morning, then late morning to around noon across the northern and central portions, and early afternoon in the eastern portions. At least that is what the latest models are forecasting (so it could change a bit)

I have very few changes overall. One thing I am watching is dropping snow levels for Saturday and Sunday. This could change, but for now it looks like they could drop below pass level.

I have given it thought, and I have decided not to treat the weekend totals as a separate event. Models don’t always do a great job defining start and stop times, especially with successive systems.

That is why, even though they are different systems (one ending Friday afternoon and another starting Friday evening), we’ll use model guidance for totals between now and Monday morning. As I said, I am more concerned with the overall totals than trying to determine starts, stops, and lulls.

We have a lot of new people and some longtime followers who need a refresher, so I made cheat sheets for the forecast maps.

T=Telluride C=Cortez M=Mancos D=Durango B=Bayfield P=Pagosa Springs WC=Wolf Creek Pass

Going forward, I will include these “cheaters” every time I post forecast maps. All of these maps show total liquid equivalent precipitation from Wednesday through Sunday evening

German Model: Further clarification on map locations correlated with forecast amounts shown. 1.65=Telluride, 2.46=Cortez,  5.44=NE of Bayfield near Upper Pine Fire Station number 8, 5.74=Pagosa Springs

NBM (model)

European Model

Canadian Model-Crazy!

GFS AI

I’ll update flood potential mid-morning when the new data is out. I am curious to see if there are any new additions to what we saw yesterday.

Venmo: @Jeff-Givens-11 

OR

Click here to DONATE with PayPal

Cash App users:  $JGDWG

ZELLE: jgivenscbr@gmail.com

Prefer to send a check? Click below to request instructions.

Click here to submit any question

Submit or search Precipitation Report

Tuesday Afternoon Update: Too Big To Ignore!

10/20/26 Tuesday Noon

Morning models are slightly slowing the onset of heavy precipitation (again), as expected.

Overview

Nothing meaningful has changed; showers and storms will start moving into the area tomorrow. Heavy rain will develop later in the day/night and last through Friday or Sunday; it’s complicated, more on this in a moment.

Here are the latest precipitation forecast models through Friday night.

NBM

German

Canadian

European

GFS AI-  I fired the old original GFS. It is not dependable; it flip-flops all of the time and forecasts scenarios that could never happen with our terrain. I have been tracking the GFS AI for a while, and it is impressive. That’s the first time I have ever used the words GFS and Impressive together.

Time to revisit what I said earlier: “Heavy rain will develop later in the day/night and last through Friday or Sunday; it’s complicated”

That is an understatement. It’s also why I named this post “Too Big To Ignore!”

I have mentioned a couple of times that the Euro doesn’t stop raining on Friday; it continues through Sunday night/Monday morning. All of the other models are now on board with this solution. If this happens, I will have to update all of the flood areas; this could become a big problem. The maps I posted above are for precipitation through Friday night.

If I extend these models through Sunday night. Look at what it does to those totals:

German Model through Sunday night

Canadian Model through Sunday night

European Model through Sunday Night

GFS AI through Sunday night- that is a scary 10 inches of liquid at Wolf Creek Pass. Canadian showed 8.5 inches

To complicate things further, there is a slight chance we could see lower snow levels this weekend.

If you did not read my last update on current areas forecasted to have potential flooding issues, you can read it here: Tuesday Potential Flood Areas To Watch For Event

Venmo: @Jeff-Givens-11 

OR

Click here to DONATE with PayPal

Cash App users:  $JGDWG

ZELLE: jgivenscbr@gmail.com

Prefer to send a check? Click below to request instructions.

Click here to submit any question

Submit or search Precipitation Report

Tuesday Potential Flood Areas To Watch For Event

Tuesday 10:00 am

My weather update will be out this afternoon. But I wanted to get this out ASAP.

So far, these are the areas to keep an eye on: Animas River at Durango, La Plata River at Hesperus, Mancos River at Mancos, Animas River at Cedar Hill, La Plata River at the CO/NM state line, and the worst conditions are forecast to occur at the San Juan River in Pagosa. These are the only 6 so far. I will post any additions or changes. But as I said, so far these are the only ones.

1)Animas River (DRGC2, the bridge next to Powerhouse Science Center). This matters not only for this location but also for the North Valley. The last time I remember us having issues, we hit just over 7 feet. At 6 feet, water can back up Hermosa Creek, Waterfall Creek, and irrigation channels. I specifically remember seeing flooding in the ditches on 550 near Trimble and Hermosa, and (at the time) the old Gliderport. The forecast below shows the Animas hitting 6.5 feet, just below action stage at 7 feet. The flow (so far) is forecast to hit 6,090 cfs. The peak is forecast on Friday at 6 am.

2)La Plata River (Hesperus) Current Forecast is to hit 5 feet, which is action stage. Flow is forecast at 453 cfs. The peak is forecast on Friday at 7 am.

3)Mancos River forecast is 4.81 feet; action stage is 5 feet. Peak flow is forecast at 245 cfs. The current forecast has it peaking Friday at 5 am.

4)Animas at Cedar Hill: forecast is 9.09 feet. Action stage is 9.5 feet with flow at 6,400 cfs. The peak is forecast at 10 pm on Friday.

5)La Plata River at the CO/NM state line: forecast is 7.57 feet. Action stage is 8 feet. Flow is forecast at 735 cfs. Peak is forecast for Friday at 4 pm.

6) San Juan River at Pagosa Springs: Forecast is 10.75 feet. Action stage is 9.5 feet. Flood Stage is 10.5 feet, with flow at 4725 cfs. Forecast Peak is Friday at 5 am.

I am going to get to work on the afternoon update; it should be out by 3 pm.

Venmo: @Jeff-Givens-11 

OR

Click here to DONATE with PayPal

Cash App users:  $JGDWG

ZELLE: jgivenscbr@gmail.com

Prefer to send a check? Click below to request instructions.

Click here to submit any question

Submit or search Precipitation Report

Tuesday Morning Update: Storm Extends Through Next Weekend??

10 20/26 Tuesday 4 am

What Changed Overnight

For the last week, the European has been showing “leftovers,” extending the rain into the weekend. They were the only model to do this. Guess what? All of the other models crowded into that same solution overnight. One or two more days of moderate rain would greatly increase the totals.

Most models add an extra 1 to 2 inches, on top of the already high projected totals. For now, I am going to set the weekend aside until I can determine what the models are trying to lock onto. In the back of your minds, you can add an extra inch or so to prepare/mentally prepare, if necessary.

Overview

Another day with very slight chances of rain this afternoon and evening; only light accumulations are expected. Last night, many areas picked up 0.10″ to 0.20″, slightly more than I expected. On Wednesday, widespread moderate rain should enter the area by noon.

Noon is 9 hours later than the models showed a couple of days ago. That is why I haven’t been married to start and stop times; this almost always happens with Southern California low-pressure systems. By the way, most of the time, delay = strengthening… 

Moderate rain enters the picture by noon on Wednesday; it will get progressively heavier as the day wears on. Moderate to occasionally heavy rain will continue for most of the night into Thursday. On Thursday heavy to very heavy rain will dominate the forecast for at least 24 to 36 hours. As far as we know…

I say that to remind everyone things are constantly evolving; more delays (an even later start on Wednesday) wouldn’t surprise me at all.

Here are the overnight weather models’ forecast for event precipitation through Friday afternoon (only).

NBM (NOAA): This usually conservative model continues to spread high totals across the entire forecast area. It is the only model (so far) that has not bought off on the weekend rains. As soon as it does, I’ll be all in. If I had to bet, I would say we will see that happen by later today.

European

German

Canadian

I will be back between 1 and 4 pm today. Please check it out in case there are changes.

Venmo: @Jeff-Givens-11 

OR

Click here to DONATE with PayPal

Cash App users:  $JGDWG

ZELLE: jgivenscbr@gmail.com

Prefer to send a check? Click below to request instructions.

Click here to submit any question

Submit or search Precipitation Report

Monday Late Afternoon: Hi NWS Nice Of You To Join Us

Monday 4 pm

I gave a little nudge in one of my posts the other day, saying I was concerned I wasn’t hearing enough from NWS, CDOT, or EMS in different cities in the forecast area about the upcoming event. I knew word would travel fast if I posted that.

Thankfully, they got on board this afternoon in their discussion:

National Weather Service Grand Junction CO
300 PM MDT Mon Oct 19 2026

.KEY MESSAGES...

- Isolated showers and seasonable temperatures to start the work
  week.

- Widespread rain returns Wednesday through Friday.

- The potential for flooding increases on Thursday and Friday
  especially for portions of southeast Utah and southwest
  Colorado.

- Rainfall amounts in the southern mountains range from 1-3
  inches with locally higher amounts possible in the San Juans.

&&

.DISCUSSION...
Issued at 1112 AM MDT Mon Oct 19 2026

ISOLATED SHOWERS AND SEASONABLE TEMPS TO BEGIN THE WORK WEEK:

Broad southwesterly flow will dominate the start of the work week,
maintaining moisture advection across the region. Expect a
continuation of cloud cover along with isolated showers through
Tuesday. Modest warm air advection will nudge high temperatures
closer to seasonal normals despite the increased cloud cover. While
localized breezy conditions could accompany collapsing showers,
organized convection is not anticipated.

WIDESPREAD RAIN AND FLOOD POTENTIAL LATE-WEEK:

By Wednesday, a strong low pressure system drops southward along the
California coast, while an upper level jet noses into the Four
Corners region. These two features will work in tandem to bring
remnant moisture from what is now Hurricane Trudy into the region,
bringing the return of widespread precipitation chances. Initial
model solutions depict the most likely time period for widespread
showers to be Wednesday night through Thursday night. It is also
important to note that a large majority of the precipitation from
this system will fall as rain, with the pool of colder temperatures
staying well north of the forecast area. As a result, snow levels
will remain high, generally at or above 12,000 feet. Given the
prospect of high-elevation rain falling onto antecedent snowpack and
saturated soils from last week`s precipitation, flash flooding and
hydrologic impacts will be monitored closely as the system
progresses. The highest amounts of rainfall are currently showing up
in the southern mountains where 1-3 inches of rainfall are
possible. The San Juans look to take the brunt from this system
so locally higher amounts are possible. In fact, some of the
river forecasts in that area are reaching flood stage. Ensemble
guidance supports PWATs upwards of 250-300% of normal, providing
another strong signal to monitor for potential impacts. Keep in
mind that the forecast remains fluid this far out, and key
details may shift over the coming days. Stay tuned for updates.

Precipitation chances continue into Friday afternoon, though
coverage will gradually taper off. Meanwhile, the low pressure
system will be absorbed into the main flow, driving a frontal
passage through the area. This will bring cooler temperatures on
Friday, dropping highs by 5 to 10 degrees compared to Thursday and
potentially taking overnight temperatures back below freezing.

 

Then I saw this; I couldn’t be happier about their engagement on this matter! And this GREAT news from LPCG!

MORE BIG RAIN IS FORECASTED! The National Weather Service is predicting heavy rains in the region over the next several days. La Plata County has sandbags available at no charge for county residents to assist property owners in protecting their property from potential flood damage in low-lying and flood-prone areas. The sand and sandbags are available at the listed locations below and are on a self-serve basis; shovels may be provided, but residents are advised to bring their own in case none are available. Sand and bags are available 24 hours a day at: •La Plata County Fairgrounds and Event Center (north lot near the rodeo arena), 2500 Main Ave., Durango •Upper Pine River Fire Protection Station 1, 75 South Clover Dr., Bayfield AND Upper Pine Fire Protection District Station 4, 80 W Vallecito Creek Rd., Bayfield •Los Pinos Fire District Station 1, 275 Browning Ave, Ignacio, CO 81137 •Fort Lewis Mesa Fire Department Station 1, 164 County Road 130, Hesperus, CO 81326 Rainfall could cause mudslides and loosen other large objects and debris throughout the region, and drivers should be aware of these potential road hazards. To report road damage, please call

or fill out a road repair request form on the La Plata County website at: https://www.co.laplata.co.us/departments/road_and_bridge/repair_request_form.php Sign up for LPC Alerts to get emergency alerts that may affect you at: www.lpcgov.org/LPCAlerts

Venmo: @Jeff-Givens-11 

OR

Click here to DONATE with PayPal

Cash App users:  $JGDWG

ZELLE: jgivenscbr@gmail.com

Prefer to send a check? Click below to request instructions.

Click here to submit any question

Submit or search Precipitation Report



Monday Afternoon Model Update

10/19/26 Monday 12:30 pm

First off, a couple of things to discuss/remind you all about.

Until I have time to teach/refresh those who struggle to read the precipitation maps, I’ll keep giving a brief forecast overview at the start of every update.

As a reminder to long-time followers, and to let you new folks know, I handle winter snow forecasts much differently than rain events. I crop and enlarge the forecast area on the maps, and I label Durango, Telluride, and Wolf Creek Pass.

Then I post my forecast amounts. I group the areas by how much snow I forecast. To view the areas, click Precipitation Reports at the top of the main page. Then click Subdivision/Area, and the drop-down menu will show all the areas I will be covering.

Overview

A slight chance of showers developing this afternoon, evening, and overnight into Tuesday morning. The showers will not be widespread, and anything reaching the ground should be light compared to what’s on the way.

The latest model runs have removed light showers from Tuesday afternoon’s forecast. On Wednesday afternoon, showers should start building in from west to east. Showers should get heavier overnight into Thursday morning. Moderate to heavy rain should fall all day and night Thursday before diminishing by Friday morning. On Saturday, some models show showers redeveloping from residual moisture in the area, as well as small perturbations that broke off the main storm system. All in all, 2 to 5 inches of rain will fall across the forecast area this week.

At this point, snow may be above treeline and not affect the passes. I won’t know until the low starts moving onshore.

This is how it looks now if nothing changes. Which would be unusual; therefore, while I am fairly confident in the accumulations, I am not at all confident in the Wednesday through Friday timing of the system’s start and stop.

Models continue to be very consistent with their event totals.

European

NBM (NOAA blended model)

This morning’s run

NBM brand new run (it was released while I was preparing this update)

 

German

Canadian

I will be back early tomorrow!

Venmo: @Jeff-Givens-11 

OR

Click here to DONATE with PayPal

Cash App users:  $JGDWG

ZELLE: jgivenscbr@gmail.com

Prefer to send a check? Click below to request instructions.

Click here to submit any question

Submit or search Precipitation Report

Monday Morning Update: The Latest On This Week’s Potent Storm

10/19/26 Monday 4:00 am

Light isolated showers may develop this afternoon. There is a slightly higher chance of light showers Tuesday afternoon. Heavier precipitation is forecast to arrive by Wednesday afternoon, bringing 36 to 48 hours of heavy rain.

There aren’t many changes in the setup. Not yet, anyway. I am a little surprised the models haven’t budged on their storm track or timing. We will see what happens over the next 24 hours. The models are mostly unchanged; more on those in a moment.

It is still too early to determine snow levels. I am leaning toward snow levels being too high to affect travel (above pass levels). That is not my preference. Higher snow levels could lead to rain on existing snow, increasing runoff.  It is still too early to know. Why? Because we don’t know how much the low will deepen and strengthen off the Central and Southern California Coast before it comes ashore.

Here is our storm, and a couple of ways to look at it.

Satellite feed  (4:45 am)

Static image

Adjusted image (explained)

The system is moving down the Pacific Coast and is currently located off the Washington-Oregon coast.

The only change is with the European model. It is showing some “leftovers” coming through on Saturday. The other models have the system departing late Friday.

In some cases, the totals are getting higher!

European: mostly unchanged

NBM (NOAA and WPC model): Higher totals than last run. Normally this is one of the most conservative models; it’s showing values higher than I have ever seen from it across such a widespread area.

German ICON model: Higher Totals

Canadian GDPS: Higher totals

Just a note on the Canadian. This model is less popular, especially east of the Continental Divide and across most of the United States. However, this model’s physics were designed with the Canadian Rockies in mind. It is my heaviest-weighted model for my Wolf Creek winter storm snow forecasts.

If you are new, and there are a lot of new people over the last 24 hours, welcome. I usually post a second update between 1 pm and 3 pm when we are on “storm alert.”

 

Venmo: @Jeff-Givens-11 

OR

Click here to DONATE with PayPal

Cash App users:  $JGDWG

ZELLE: jgivenscbr@gmail.com

Prefer to send a check? Click below to request instructions.

Click here to submit any question

Submit or search Precipitation Reports

Sunday Afternoon Model Updates

Sunday 12:30 pm

Showers are starting to pop up. This has nothing to do with the upcoming storm. We should have similar conditions tomorrow.  As we shift to SW flow, we could see higher amounts on Tuesday.

First, sorry about the error post. I am very sensitive to getting a clogged-up inbox. For now, I am going to take a break from the Sus Posts pages and concentrate on this incredible event that looks like it is headed this way Wednesday through Friday.

From the emails I’ve received, it looks like everyone needs to travel on Thursday, which, at this moment, looks like the heaviest day of precipitation.

I will follow up, but for now, it’s too early to determine snow levels. The models sometimes get confused by subtropical air masses with setups like this.

Also, we can’t get completely married to the timing. As we learned with the last one, the low-pressure system will do what it wants when it wants. I noticed the NWS got a little more engaged with this event in their late-morning discussion.

I won’t share every model like I did this morning. But I have gone through them, most have higher totals this afternoon. If you have not read this morning’s post, read it here.

Here are the latest model runs:

NOAA’s NBM

European

Canadian-Holy Bullseye Yikes!

I will be back in the morning!

Venmo: @Jeff-Givens-11 

OR

Click here to DONATE with PayPal

Cash App users:  $JGDWG

ZELLE: jgivenscbr@gmail.com

Prefer to send a check? Click below to request instructions.

Click here to submit any question

Submit or search Precipitation Reports