Alert archive / Colorado / High Wind Warnings in 2021

High Wind Warning 4, NWS Denver/Boulder, CO

March 28, 202110 counties in Colorado

NWS Denver/Boulder, CO issued this high wind warning at Mar 28, 2021, 8:44 PM MDT for 10 counties in Colorado. It took effect at Mar 29, 2021, 3:00 AM MDT. It was in force for 13 hr. 35 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Mar 28, 2021, 8:44 PM MDT (02:44 UTC)
In effect from
Mar 29, 2021, 3:00 AM MDT
Expired
Mar 29, 2021, 4:00 PM MDT
In force
13 hr
Issued by
NWS Denver/Boulder, CO

Counties Boulder County, CO, Clear Creek County, CO, Douglas County, CO, Gilpin County, CO, Grand County, CO, Jackson County, CO, Jefferson County, CO, Larimer County, CO, Park County, CO, Summit County, CO

What was reported inside it

TimeReportWhereRemark
Mar 29, 3:31 AM MDTNON-TSTM WND GST 553 Wnw Loveland, COMESONET STATION DW5856 LOVELAND.
Mar 29, 4:49 AM MDTNON-TSTM WND GST 613 Se Tolland, COAWOS STATION KC99 DAKOTA HILL.
Mar 29, 5:33 AM MDTNON-TSTM WND GST 592 Nne Ward, COMESONET STATION CW5038 WARD.
Mar 29, 6:24 AM MDTNON-TSTM WND GST 53Red Feather Lakes, COMESONET STATION RFRC2 REDFEATHER.
Mar 29, 6:38 AM MDTNON-TSTM WND GST 701 N Glen Haven, COMESONET STATION EW4490 GLEN HAVEN.
Mar 29, 6:42 AM MDTNON-TSTM WND GST 528 Wnw Cowdrey, COMESONET STATION IMRC2 INDEPENDENCE MOUNTAIN.
Mar 29, 6:55 AM MDTNON-TSTM WND GST 741 Ene Berthoud Pass, COAWOS STATION K0CO BERTHOUD PASS.
Mar 29, 8:16 AM MDTNON-TSTM WND GST 563 Wnw Mishawaka, COMESONET STATION EW0853 LIVERMORE.
Mar 29, 8:36 AM MDTNON-TSTM WND GST 503 Ese Pinecliffe, COMESONET STATION FW8937 GOLDEN.
Mar 29, 8:36 AM MDTNON-TSTM WND GST 545 S Lyons, COMESONET STATION EW8833 LONGMONT.
Mar 29, 9:02 AM MDTNON-TSTM WND GST 555 S Estes Park, COMESONET STATION CO045 007N007 LILY LAKE.
Mar 29, 9:35 AM MDTNON-TSTM WND GST 673 Ese Buckeye, COMESONET STATION BEYC2 BUCKEYE.
Mar 29, 10:10 AM MDTNON-TSTM WND GST 586 Sw Carr, COMESONET STATION CO166 CR-82 BUCKEYE RD.
Mar 29, 10:29 AM MDTNON-TSTM WND GST 531 N Georgetown, COMESONET STATION CO162 0.85 MI E OF 15TH ST GEORGETOWN.
Mar 29, 10:35 AM MDTNON-TSTM WND GST 613 Ene Nederland, COMESONET STATION FW1761 NEDERLAND.
Mar 29, 10:49 AM MDTNON-TSTM WND GST 524 Ene Nederland, COMESONET STATION DW5338 NEDERLAND.
Mar 29, 11:43 AM MDTNON-TSTM WND GST 585 S Virginia Dale, COMESONET STATION DW3707 LIVERMORE.
Mar 29, 12:02 PM MDTNON-TSTM WND GST 60Virginia Dale, COMESONET STATION CO036 287N381 VIRGINIA DALE.
Mar 29, 12:16 PM MDTNON-TSTM WND GST 611 Ne Crisman, COMESONET STATION EW4338 1 NE CRISMAN.
Mar 29, 1:23 PM MDTNON-TSTM WND GST 622 S Cheesman Reservoir, COMESONET STATION CHRC2 CHEESMAN.
Mar 29, 1:31 PM MDTNON-TSTM WND GST 543 Se Niwot, COMESONET STATION FW3675 LAFAYETTE.
Mar 29, 1:35 PM MDTNON-TSTM WND GST 521 S Copper Mountain, COAWOS STATION KCCU RED CLIFF PASS.
Mar 29, 1:49 PM MDTNON-TSTM WND GST 502 N Copper Mountain, COMESONET STATION CO154 0.6 MI E OF CO-91 COPPER MTN.
Mar 29, 2:06 PM MDTNON-TSTM WND GST 512 Ne Hygiene, COMESONET STATION AU469 LONGMONT.
Mar 29, 2:33 PM MDTNON-TSTM WND GST 524 Sw Hygiene, COMESONET STATION DW1011 LONGMONT.
Mar 29, 2:35 PM MDTNON-TSTM WND GST 511 N Walden, COAWOS STATION K33V WALDEN.
Mar 29, 2:39 PM MDTNON-TSTM WND GST 554 Nnw Keystone, COMESONET STATION CO159 2.9 MI W OF EJMT - THE BOX.
Mar 29, 2:57 PM MDTNON-TSTM WND GST 502 Ssw Roxborough Park, COMESONET STATION CTPC2 CARPENTER PEAK.
Mar 29, 3:01 PM MDTNON-TSTM WND GST 533 Nw Campion, COMESONET STATION AR167 BERTHOUD.
Mar 29, 3:02 PM MDTNON-TSTM WND GST 503 Wnw Loveland Pass, COMESONET STATION CO126 070E214 EJT WEST PORTAL.
Mar 29, 3:15 PM MDTNON-TSTM WND GST 511 S Hygiene, COAWOS STATION KLMO LONGMONT VBRAND.
Mar 29, 3:19 PM MDTNON-TSTM WND GST 554 Nnw Keystone, COMESONET STATION CO159 2.9 MI W OF EJMT - THE BOX.
Mar 29, 3:46 PM MDTNON-TSTM WND GST 6011 Nne Kremmling, COMESONET STATION GSPC2 GUNSIGHT.
Mar 29, 3:49 PM MDTNON-TSTM WND GST 552 N Copper Mountain, COMESONET STATION CO154 0.6 MI E OF CO-91 COPPER MTN.
Mar 29, 3:53 PM MDTNON-TSTM WND GST 532 Ne Hygiene, COMESONET STATION AU469 LONGMONT.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 2.7 hours before the alert went out and 206 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 2021-03-29Temperature 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 2021-03-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.193958Sfc1 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
3364 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
113 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

847 
WWUS75 KBOU 290244
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver/Boulder CO
844 PM MDT Sun Mar 28 2021

COZ033>036-291045-
/O.UPG.KBOU.HW.A.0003.210329T0900Z-210329T2200Z/
/O.NEW.KBOU.HW.W.0004.210329T0900Z-210329T2200Z/
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Including Cameron Pass, Laramie and Medicine Bow Mountains, 
Rabbit Ears Range, Rocky Mountain National Park, 
Willow Creek Pass, Berthoud Pass, Breckenridge, 
East Slopes Mosquito Range, East Slopes Southern Gore Range, 
Eisenhower Tunnel, Indian Peaks, Kenosha Mountains, Mount Evans, 
Williams Fork Mountains, Winter Park, Estes Park, Glendevey, 
Nederland, Red Feather Lakes, Bailey, Central City, Evergreen, 
Georgetown, Idaho Springs, and Westcreek
844 PM MDT Sun Mar 28 2021

...HIGH WIND WARNING IN EFFECT FROM 3 AM TO 4 PM MDT MONDAY...

* WHAT...West winds 25 to 40 mph with gusts around 75 mph 
  expected.

* WHERE...Rocky Mountain National Park and the Medicine Bow 
  Range, The Mountains of Summit County, the Mosquito Range, and 
  the Indian Peaks, The Northern Front Range Foothills and The 
  Southern Front Range Foothills.

* WHEN...From 3 AM to 4 PM MDT Monday.

* IMPACTS...Strong winds will blow unsecured objects around. Tree
  limbs could be blown down and a few power outages may result.
  Travel will be difficult for high profile vehicles. The
  strongest winds will be along and north of the I-70 Corridor. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Strong winds may lead to property damage. Hazardous driving
conditions due to powerful cross winds will pose a serious risk
for drivers, especially for light weight and high profile
vehicles. Loose outdoor items should be brought inside or secured
properly.

&&

$$

COZ046-291045-
/O.EXT.KBOU.HW.A.0003.210329T2100Z-210330T0600Z/
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Including Agate, Hugo, Limon, and Matheson
844 PM MDT Sun Mar 28 2021

...HIGH WIND WATCH IN EFFECT FROM LATE MONDAY AFTERNOON THROUGH 
MONDAY EVENING...

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

* WHERE...Eastern Elbert and Northern Lincoln Counties.

* WHEN...From Monday afternoon through Monday evening.

* IMPACTS...Strong winds will blow unsecured objects around. Tree
  limbs could be blown down and a few power outages may result.
  Travel will be difficult for high profile vehicles. This
  includes I-70 through the Limon area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

COZ042-044-048>051-291045-
/O.CON.KBOU.HW.A.0003.210329T2100Z-210330T0600Z/
Northeast Weld County-Morgan County-Logan County-
Washington County-Sedgwick County-Phillips County-
Including Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, 
Brush, Fort Morgan, Goodrich, Wiggins, Crook, Merino, Sterling, 
Peetz, Akron, Cope, Last Chance, Otis, Julesburg, Ovid, Sedgwick,
Amherst, Haxtun, and Holyoke
844 PM MDT Sun Mar 28 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE MONDAY AFTERNOON
THROUGH MONDAY EVENING...

* WHAT...Northwest winds 30 to 40 mph with gusts up to 60 mph 
  possible.

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

* WHEN...From late Monday afternoon through Monday evening.

* IMPACTS...Strong winds will blow unsecured objects around. Tree
  limbs could be blown down and a few power outages may result.
  Travel will be difficult for high profile vehicles. This
  includes I-76 through northeast Colorado. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$
3 follow-up statements
975 
WWUS75 KBOU 291035
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver/Boulder CO
435 AM MDT Mon Mar 29 2021

COZ033>036-292100-
/O.CON.KBOU.HW.W.0004.000000T0000Z-210329T2200Z/
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Including Cameron Pass, Laramie and Medicine Bow Mountains, 
Rabbit Ears Range, Rocky Mountain National Park, 
Willow Creek Pass, Berthoud Pass, Breckenridge, 
East Slopes Mosquito Range, East Slopes Southern Gore Range, 
Eisenhower Tunnel, Indian Peaks, Kenosha Mountains, Mount Evans, 
Williams Fork Mountains, Winter Park, Estes Park, Glendevey, 
Nederland, Red Feather Lakes, Bailey, Central City, Evergreen, 
Georgetown, Idaho Springs, and Westcreek
435 AM MDT Mon Mar 29 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 PM MDT THIS
AFTERNOON...

* WHAT...West winds 30 to 50 mph with gusts up to 80 mph.

* WHERE...The Southern Front Range Foothills, The Northern Front 
  Range Foothills, The Mountains of Summit County, the Mosquito 
  Range, and the Indian Peaks and Rocky Mountain National Park 
  and the Medicine Bow Range.

* WHEN...Until 4 PM MDT this afternoon.

* IMPACTS...Strong winds will blow unsecured objects around. 
  Tree limbs could be blown down and a few power outages may 
  result. Travel will be difficult for high profile vehicles. 
  The strongest winds will be along and north of the I-70 
  Corridor.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Strong winds may lead to property damage. Hazardous driving
conditions due to powerful cross winds will pose a serious risk
for drivers, especially for light weight and high profile
vehicles. Loose outdoor items should be brought inside or secured
properly.

&&

$$

COZ042-044-046-048>051-292100-
/O.CON.KBOU.HW.A.0003.210329T2100Z-210330T0600Z/
Northeast Weld County-Morgan County-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-Logan County-Washington County-Sedgwick County-
Phillips County-
Including Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, 
Brush, Fort Morgan, Goodrich, Wiggins, Agate, Hugo, Limon, 
Matheson, Crook, Merino, Sterling, Peetz, Akron, Cope, 
Last Chance, Otis, Julesburg, Ovid, Sedgwick, Amherst, Haxtun, 
and Holyoke
435 AM MDT Mon Mar 29 2021

...HIGH WIND WATCH REMAINS IN EFFECT FROM 3 PM MDT THIS AFTERNOON
THROUGH THIS EVENING...

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

* WHERE...Northeast Weld County, Phillips County, Sedgwick 
  County, Morgan County, Eastern Elbert and Northern Lincoln 
  Counties, Logan County and Washington County.

* WHEN...From 3 PM MDT this afternoon through this evening.

* IMPACTS...Strong winds will blow unsecured objects around. 
  Tree limbs could be blown down and a few power outages may 
  result. Travel will be difficult for high profile vehicles. 
  This includes I-76 through northeast Colorado.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Fasten loose objects or shelter objects in a safe
location prior to the onset of winds.

&&

$$

Gimmestad
005 
WWUS75 KBOU 291449
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver/Boulder CO
849 AM MDT Mon Mar 29 2021

COZ042-044-046-048>051-291600-
/O.CAN.KBOU.HW.A.0003.210329T2100Z-210330T0600Z/
Northeast Weld County-Morgan County-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-Logan County-Washington County-Sedgwick County-
Phillips County-
Including Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, 
Brush, Fort Morgan, Goodrich, Wiggins, Agate, Hugo, Limon, 
Matheson, Crook, Merino, Sterling, Peetz, Akron, Cope, 
Last Chance, Otis, Julesburg, Ovid, Sedgwick, Amherst, Haxtun, 
and Holyoke
849 AM MDT Mon Mar 29 2021

...HIGH WIND WATCH IS CANCELLED...

The High Wind Watch has been cancelled for the above locations.
However, wind gusts up to 50 mph will still be possible for this
afternoon and into the evening hours. Loose items and broken tree
limbs could become a hazard in high winds. 

$$

COZ033>036-292200-
/O.CON.KBOU.HW.W.0004.000000T0000Z-210329T2200Z/
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Including Cameron Pass, Laramie and Medicine Bow Mountains, 
Rabbit Ears Range, Rocky Mountain National Park, 
Willow Creek Pass, Berthoud Pass, Breckenridge, 
East Slopes Mosquito Range, East Slopes Southern Gore Range, 
Eisenhower Tunnel, Indian Peaks, Kenosha Mountains, Mount Evans, 
Williams Fork Mountains, Winter Park, Estes Park, Glendevey, 
Nederland, Red Feather Lakes, Bailey, Central City, Evergreen, 
Georgetown, Idaho Springs, and Westcreek
849 AM MDT Mon Mar 29 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 PM MDT THIS
AFTERNOON...

* WHAT...West winds 30 to 40 mph with gusts up to 80 mph.

* WHERE...The Southern Front Range Foothills, The Northern Front 
  Range Foothills, The Mountains of Summit County, the Mosquito 
  Range, and the Indian Peaks and Rocky Mountain National Park 
  and the Medicine Bow Range.

* WHEN...Until 4 PM MDT this afternoon.

* IMPACTS...Strong winds will blow unsecured objects around. 
  Tree limbs could be blown down and a few power outages may 
  result. Travel will be difficult for high profile vehicles. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Strong winds may lead to property damage. Hazardous driving
conditions due to powerful cross winds will pose a serious risk
for drivers, especially for light weight and high profile
vehicles. Loose outdoor items should be brought inside or secured
properly.

&&

$$
529 
WWUS75 KBOU 292219
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver/Boulder CO
419 PM MDT Mon Mar 29 2021

COZ033>036-292330-
/O.EXP.KBOU.HW.W.0004.000000T0000Z-210329T2200Z/
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Including Cameron Pass, Laramie and Medicine Bow Mountains, 
Rabbit Ears Range, Rocky Mountain National Park, 
Willow Creek Pass, Berthoud Pass, Breckenridge, 
East Slopes Mosquito Range, East Slopes Southern Gore Range, 
Eisenhower Tunnel, Indian Peaks, Kenosha Mountains, Mount Evans, 
Williams Fork Mountains, Winter Park, Estes Park, Glendevey, 
Nederland, Red Feather Lakes, Bailey, Central City, Evergreen, 
Georgetown, Idaho Springs, and Westcreek
419 PM MDT Mon Mar 29 2021

...HIGH WIND WARNING HAS EXPIRED...

Strong winds will continue across the area this evening, but
speeds will remain under high wind criteria, or under 75 mph
gusts. 

$$

Nearby

High Wind Warnings in Colorado, 2021Every high wind warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.