Alert archive / Colorado / High Wind Watches in 2021

High Wind Watch 5, NWS Denver/Boulder, CO

October 26, 20217 counties in Colorado

NWS Denver/Boulder, CO issued this high wind watch at Oct 26, 2021, 3:06 AM MDT for 7 counties in Colorado. It took effect at Oct 26, 2021, 6:00 PM MDT. It was in force for .

The area

The counties it named.

The facts

Issued
Oct 26, 2021, 3:06 AM MDT (09:06 UTC)
In effect from
Oct 26, 2021, 6:00 PM MDT
Expired
Oct 26, 2021, 9:51 AM MDT
In force
Issued by
NWS Denver/Boulder, CO

Counties Elbert County, CO, Lincoln County, CO, Logan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO

The radar

The Denver radar (KFTG), 114 km from the middle of the area, began a volume at 09:08 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 9.1 hours before the alert went out and 31 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Denver, CO at 00:00Z on 2021-10-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2021-10-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 293 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3168 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
293 m²/s²
0-3 km storm-relative helicity
362 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

741 
WWUS75 KBOU 260906
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver CO
306 AM MDT Tue Oct 26 2021

COZ042-048>051-262115-
/O.NEW.KBOU.HW.A.0005.211027T0000Z-211027T0600Z/
Northeast Weld County-Logan County-Washington County-Sedgwick
County-Phillips County-
Including the cities of Sterling, Pawnee Buttes, Stoneham, Ovid,
Cope, Holyoke, Otis, Crook, Julesburg, Grover, Amherst,
Briggsdale, Sedgwick, Merino, Last Chance, Haxtun, Peetz, Raymer,
and Akron
306 AM MDT Tue Oct 26 2021

...HIGH WIND WATCH IN EFFECT THIS EVENING...

* WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph 
  possible.

* WHERE...Logan County, Northeast Weld County, Phillips County, 
  Sedgwick County and Washington County Counties.

* WHEN...This evening.

* IMPACTS...Gusty winds will blow around unsecured objects and a few 
  power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

COZ046-047-262115-
/O.NEW.KBOU.HW.A.0005.211027T0000Z-211027T0900Z/
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-Southeast Elbert County Below 6000 Feet/South Lincoln
County-
Including the cities of Punkin Center, Karval, Hugo, Matheson,
Forder, Limon, Agate, and Kutch
306 AM MDT Tue Oct 26 2021

...HIGH WIND WATCH IN EFFECT FROM THIS EVENING THROUGH LATE 
TONIGHT...

* WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph 
  possible.

* WHERE...North and Northeast Elbert County Below 6000 Feet/North 
  Lincoln County and Southeast Elbert County Below 6000 Feet/South 
  Lincoln County Counties.

* WHEN...From this evening through late tonight.

* IMPACTS...Gusty winds will blow around unsecured objects and a few 
  power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

For more information from the National Weather Service, visit 
https://weather.gov/bou

Danielson
1 follow-up statement
852 
WWUS75 KBOU 261551
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver CO
951 AM MDT Tue Oct 26 2021

COZ042-048>051-270230-
/O.UPG.KBOU.HW.A.0005.211027T0000Z-211027T0600Z/
/O.NEW.KBOU.HW.W.0007.211027T0000Z-211027T0600Z/
Northeast Weld County-Logan County-Washington County-Sedgwick
County-Phillips County-
Including the cities of Sterling, Pawnee Buttes, Stoneham, Ovid,
Cope, Holyoke, Otis, Crook, Julesburg, Grover, Amherst,
Briggsdale, Sedgwick, Merino, Last Chance, Haxtun, Peetz, Raymer,
and Akron
951 AM MDT Tue Oct 26 2021

...HIGH WIND WARNING IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT 
MDT TONIGHT...

* WHAT...Northwest winds 25 to 40 mph with gusts up to 60 mph.

* WHERE...Logan, Northeast Weld, Phillips, Sedgwick, and Washington 
  Counties.

* WHEN...From 6 PM this evening to Midnight MDT tonight.

* IMPACTS...Gusty winds will blow around unsecured objects and a few 
  power outages may result. Travel will be difficult, especially for 
  high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

COZ046-047-270230-
/O.UPG.KBOU.HW.A.0005.211027T0000Z-211027T0900Z/
/O.NEW.KBOU.HW.W.0007.211027T0000Z-211027T0900Z/
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-Southeast Elbert County Below 6000 Feet/South Lincoln
County-
Including the cities of Punkin Center, Karval, Hugo, Matheson,
Forder, Limon, Agate, and Kutch
951 AM MDT Tue Oct 26 2021

...HIGH WIND WARNING IN EFFECT FROM 6 PM THIS EVENING TO 3 AM MDT 
WEDNESDAY...

* WHAT...Northwest winds 25 to 40 mph with gusts up to 60 mph.

* WHERE...North and eastern Elbert County Below 6000 Feet and 
  Lincoln County.

* WHEN...From 6 PM this evening to 3 AM MDT Wednesday.

* IMPACTS...Gusty winds will blow around unsecured objects and a few 
  power outages may result. Travel will be difficult, especially for 
  high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

COZ044-270230-
/O.NEW.KBOU.HW.W.0007.211027T0000Z-211027T0600Z/
Morgan County-
Including the cities of Wiggins, Brush, Fort Morgan, and Goodrich
951 AM MDT Tue Oct 26 2021

...HIGH WIND WARNING IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT 
MDT TONIGHT...

* WHAT...Northwest winds 25 to 40 mph with gusts up to 60 mph 
  expected.

* WHERE...Morgan County.

* WHEN...From 6 PM this evening to Midnight MDT tonight.

* IMPACTS...Gusty winds will blow around unsecured objects and a few 
  power outages may result. Travel will be difficult, especially for 
  high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high 
profile vehicles. Use extra caution.

&&

$$

For more information from the National Weather Service, visit 
https://weather.gov/bou

Meier

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 26, 3:12 AM MDTRed Flag WarningBOUElbert, Lincoln, Washington15 hr
Oct 26, 9:51 AM MDTHigh Wind WarningBOUElbert, Lincoln, Logan, Morgan, Phillips, Sedgwick and 2 more14 hr

Nearby

High Wind Watches in Colorado, 2021Every high wind watch in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.