Winter’s Back…

Good Evening!  We have had a couple of very nice late Fall days to melt the snow from the storm Sunday/Monday of this week.  Now we are back into it with more winter weather on the way.  Lets have a look at what’s going on!

WINTER WEATHER ADVISORY ON DECK – As mentioned in the last post, NWS Boulder has a Winter Weather Advisory set to go active at 3 AM tomorrow morning, lasting the entire day.  We’ll see some snow starting to the north, and working south into and through the Metro. Let’s take a deeper dive.

PRE-DAWN AND EARLY PRECIP? – I am expecting clouds to thicken as the night progresses, and areas between Fort Collins and the state line could see some drizzle as soon as 3 AM. The tricky part of this forecast is, “does it become freezing drizzle right out of the gate or no?”  I think no, that precipitation drops further into the northern end of the Metro by about 6 AM.  It should be closer to then that stuff starts changing to freezing, and snow could be falling as soon as 8 AM in Denver proper.  Forecast data is coming in with varying speeds and temperature profiles, so confidence in an exact time snow will start is low.  All data does say that we’ll be snowing by noon tomorrow though!

WHERE AND HOW MUCH? – NWS Boulder has the Winter Weather Advisory up all the way down to the Palmer Divide.  It will be close but my money says if you gets south of say, Castle Rock or Larkspur, you should be fine, as in any snow there should be of little consequence, if you even see any there.  This appears to be a northeast quarter of Colorado affair, with the heavy stuff up in the high country!  Metro area, dusting to an inch.  Foothills, 1-3″, locally higher amounts possible, especially as you go north. High country, 4-8″ unless you’re around Leadville or Estes Park, then you might see double digits up to a foot!

Here’s my forecast for Denver and vicinity including Thornton and Littleton:

Tonight – Clear to start, increasing clouds and becoming chilly, some rain or perhaps drizzle late.  Lows near 28, winds  northerly 5-10 MPH. Winter Weather Advisory in play after 3 AM.

Saturday – Cloudy skies, any rain will change over to snow by about 11 AM, high only 34.  Winds N 5-10 mph.

Sunday – Skies slowly clearing, warmer.  High 43.

We’ll have more for you later and a six day planner as well!

 

 

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WINTER WEATHER ADVISORY STARTING AT 3 AM…

Good Evening! NWS Boulder has posted a Winter Weather Advisory – here’s what’s going on:

...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM SATURDAY TO  
MIDNIGHT MST SATURDAY NIGHT...  
  
* WHAT...MIXED PRECIPITATION EXPECTED, SPREADING SOUTHWARD ACROSS  
  THE PLAINS LATE TONIGHT INTO EARLY SATURDAY MORNING. TOTAL SNOW  
  ACCUMULATIONS OF UP TO TWO INCHES AND ICE ACCUMULATIONS LESS   
  THAN ONE TENTH OF AN INCH EXPECTED.  
  
* WHERE...PORTIONS OF EAST CENTRAL, NORTH CENTRAL AND NORTHEAST  
  COLORADO, INCLUDING THE I-25 CORRIDOR FROM THE WYOMING BORDER  
  THROUGH DENVER AND THE PALMER DIVIDE.   
  
* WHEN...FROM 3 AM SATURDAY TO MIDNIGHT MST SATURDAY NIGHT.  
  
* ADDITIONAL DETAILS...PLAN ON SLIPPERY ROAD CONDITIONS.  
  
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
  
A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW, SLEET OR  
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. EXPECT SLIPPERY  
ROADS AND LIMITED VISIBILITIES, AND USE CAUTION WHILE DRIVING.   
  
THE LATEST ROAD CONDITIONS FOR THE STATE YOU ARE CALLING FROM CAN  
BE OBTAINED BY CALLING 5 1 1.  

SEVERE THUNDERSTORM WARNING – DENVER METRO

BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SEVERE THUNDERSTORM WARNING  
NATIONAL WEATHER SERVICE DENVER CO  
1035 PM MDT FRI NOV 2 2018  
  
THE NATIONAL WEATHER SERVICE IN DENVER COLORADO HAS ISSUED A  
  
* SEVERE THUNDERSTORM WARNING FOR...  
  BROOMFIELD COUNTY IN NORTHEASTERN COLORADO...  
  WESTERN ARAPAHOE COUNTY IN NORTHEASTERN COLORADO...  
  DENVER COUNTY IN NORTHEASTERN COLORADO...  
  NORTHEASTERN JEFFERSON COUNTY IN CENTRAL COLORADO...  
  WESTERN ADAMS COUNTY IN NORTHEASTERN COLORADO...  
  SOUTHEASTERN BOULDER COUNTY IN NORTHEASTERN COLORADO...  
  
* UNTIL 1130 PM MDT.  
  
* AT 1034 PM MDT, A STRONG STROM WAS LOCATED OVER SOUTHWESTERN   
  BROOMFIELD, OR 16 MILES NORTHWEST OF DENVER, MOVING SOUTHEAST AT   
  35 MPH.  
  
  HAZARD...70 MPH WIND GUSTS.  
  
  SOURCE...RADAR INDICATED.  
  
  IMPACT...EXPECT CONSIDERABLE TREE DAMAGE. DAMAGE IS LIKELY TO   
           MOBILE HOMES, ROOFS, AND OUTBUILDINGS.  
  
* LOCATIONS IMPACTED INCLUDE...  
  DENVER, AURORA, THORNTON, ARVADA, WESTMINSTER, NORTHEASTERN  
  CENTENNIAL, BOULDER, BROOMFIELD, COMMERCE CITY, NORTHGLENN,  
  BRIGHTON, WHEAT RIDGE, LAFAYETTE, LOUISVILLE, ERIE, SUPERIOR,  
  FEDERAL HEIGHTS, DENVER INTERNATIONAL AIRPORT, ROCKY FLATS AND  
  ELDORADO SPRINGS.  
  
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
  
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A  
BUILDING.  

Snow On The Way Out…

Good Afternoon!

A cold afternoon in the area right now, with cloudy skies and snow moving through, and we’ll keep all of that stuff around and available for the balance of the day, but the good news is that the snowfall is GRADUALLY starting to taper off from northwest to southeast as the day wears on.  Let’s have a look at what’s going on right now.

frntsnowgraphic.png

Heaviest snow for the event has been in the northern part of the state just west of Boulder and up in Larimer and Weld counties.  Right now the main body of snow is off to the east between I-76 and I-70.  We’ll check out total storm accumulations later, but here’s where we stand as I write this at about 1 PM MDT:

FRNTCURCONDS101418.png

Still a slew of winter weather alerts up until at least 6 PM this evening, and some will be up into tomorrow.  It’s a safe bet that we will have some leaves to rake here in the next couple of days!

DOUBLE OR NOTHING:  Now, after we get this system and the snow out of here, how about a rebound temperature-wise?  We likely don’t see 50 tomorrow, even with the clearing skies, but I don’t think mid to upper 40’s will be a problem!  That’s double our readings today! I’m predicting a high of 46 for the Metro but, many spots will come in a degree or two either side of that.  Tuesday should be the day when 50 or better re-appears on the thermometer.

QUIET AFTER THIS:  Now that winter has kicked in the door and let us know he’s around, we’ll see the 50’s come and settle in with fair to mainly sunny skies for pretty much the rest of the week.  In the high country, there could be more snow issues later this week with a very weak disturbance the data is showing right now, but as it sits right now, I don’t expect that to mess with the Metro too much.

Here’s a look at the forecast:

frntnightcast101418.png

And for back to work tomorrow:

frntwakeup101518.png

 

Monday forecast looks like this:

frntdaycast101518.png

Have a great day!

Freeze Watch Posted

Good Evening!

NWS Boulder has posted a Freeze Watch for most of the blog area, including the Denver Metro…so take the precautions suggested and move animals indoors too.  Counties impacted are: Adams, Arapahoe, Boulder, Broomfield, Denver, Douglas, El Paso, Elbert, Jefferson, Larimer, Morgan, Weld.

...COLD NIGHTS AHEAD...

.A storm system will bring very cold air to northeast Colorado
through the first half of this week. At or below freezing
temperatures can be expected Monday night, with a hard, killing
freeze possible Tuesday night.
...FREEZE WATCH IN EFFECT FROM LATE MONDAY NIGHT THROUGH TUESDAY
MORNING...

The National Weather Service in Denver has issued a Freeze Watch,
which is in effect from late Monday night through Tuesday
morning.

* TEMPERATURE...27 to 32 degrees, with the coldest readings over
  the Cheyenne Ridge and Palmer Divide.

* IMPACTS...Outdoor vegetation and sprinkler systems, if left
  unprotected, may be damaged by below freezing temperatures.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Freeze Watch means sub-freezing temperatures are possible.
These conditions could kill crops and other sensitive vegetation.
Move them indoors or cover with blankets to protect them.

Even colder temperatures can be expected Tuesday night, so it
would be prudent to drain above ground outdoor sprinkler systems
to prevent damage.