Alert archive / Colorado / High Wind Warnings in 2020

High Wind Warning 3, NWS Denver/Boulder, CO

January 16, 202019 counties in Colorado

NWS Denver/Boulder, CO issued this high wind warning at Jan 16, 2020, 2:09 PM MST for 19 counties in Colorado. It took effect at Jan 17, 2020, 11:00 AM MST. It was in force for 15 hr. 60 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
Jan 16, 2020, 2:09 PM MST (21:09 UTC)
In effect from
Jan 17, 2020, 11:00 AM MST
Expired
Jan 18, 2020, 2:00 AM MST
In force
15 hr
Issued by
NWS Denver/Boulder, CO

Counties Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Clear Creek County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Gilpin County, CO, Jefferson County, CO, Larimer County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Park County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO

The radar

The Denver radar (KFTG), 22 km from the middle of the area, began a volume at 21:13 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.

What was reported inside it

TimeReportWhereRemark
Jan 17, 11:10 AM MSTNON-TSTM WND GST 451 Nne Lone Tree, COMESONET STATION CO001 I-25 @ C-470 WEST.
Jan 17, 11:14 AM MSTNON-TSTM WND GST 472 Sse Centennial, COASOS STATION KAPA DENVER ARAPAHOE.
Jan 17, 11:30 AM MSTNON-TSTM WND GST 476 W Elbert, COAWOS STATION KMNH MONUMENT ELBERT.
Jan 17, 11:34 AM MSTNON-TSTM WND GST 452 Se Denver Intl Airpor, COASOS STATION KDEN DENVER.
Jan 17, 12:01 PM MSTNON-TSTM WND GST 452 Ssw Crescent Village, COMESONET STATION DW9321 WONDERVU.
Jan 17, 12:05 PM MSTNON-TSTM WND GST 4613 Ene Kiowa, COMESONET STATION AR864 KIOWA.
Jan 17, 12:10 PM MSTNON-TSTM WND GST 482 Ene Marshall, COMESONET STATION CO133 1.4W OF MCCASLIN RD.
Jan 17, 12:10 PM MSTNON-TSTM WND GST 553 Sw Rocky Flats, COMESONET STATION CO109 N-93 - JCT. 93 & 72.
Jan 17, 12:16 PM MSTNON-TSTM WND GST 561 Ne Crisman, COMESONET STATION EW4338 BOULDER.
Jan 17, 3:00 PM MSTNON-TSTM WND GST 582 Ene Marshall, COMESONET STATION CO133 1.4W OF MCCASLIN RD.
Jan 17, 4:01 PM MSTNON-TSTM WND GST 653 Sw Rocky Flats, COCDOT SENSOR CO109.
Jan 17, 4:28 PM MSTNON-TSTM WND GST 763 Sw Rocky Flats, COCDOT SENSOR CO109.
Jan 17, 4:31 PM MSTNON-TSTM WND GST 592 Ne Morrison, COMESONET STATION CW8926 LAKEWOOD.
Jan 17, 4:52 PM MSTNON-TSTM WND GST 511 Nnw Briggsdale, COMESONET STATION CO043 BRIGGSDALE.
Jan 17, 4:52 PM MSTNON-TSTM WND GST 55Virginia Dale, COMESONET STATION CO036 VIRGINIA DALE.
Jan 17, 5:00 PM MSTSNOW 22 Wsw Meeker Park, COCOPELAND LAKE SNOTEL. SWE 0.1 INCH. THE DURATION OF THE SNOW EVENT WAS 24 HOURS.
Jan 17, 5:00 PM MSTSNOW 41 Ene Trail Ridge, COWILLOW PARK SNOTEL. SWE 0.3 INCH. THE DURATION OF THE SNOW EVENT WAS 24 HOURS.
Jan 17, 5:00 PM MSTSNOW 41 Sw Eldora, COTHE DURATION OF THE SNOW EVENT WAS 24 HOURS.
Jan 17, 5:11 PM MSTNON-TSTM WND GST 712 N Carter Lake, COMESONET STATION FW2478 LOVELAND.
Jan 17, 5:43 PM MSTNON-TSTM WND GST 722 Wnw Boulder, COMESONET STATION FW1714 BOULDER.
Jan 17, 5:44 PM MSTNON-TSTM WND GST 793 Ene Bergen Park, COMESONET STATION FW4176 GOLDEN.
Jan 17, 5:49 PM MSTNON-TSTM WND GST 561 Ene Boulder, COAWOS STATION KBDU BOULDER MUNI.
Jan 17, 5:50 PM MSTNON-TSTM WND GST 616 Sw Carr, COMESONET STATION CO132 CR-82 BUCKEYE RD.
Jan 17, 5:55 PM MSTNON-TSTM WND GST 503 Ne Boulder, COMESONET STATION DW0417 BOULDER.
Jan 17, 5:59 PM MSTNON-TSTM WND GST 525 N Pawnee Pass, COAWOS STATION K1MW.
Jan 17, 6:02 PM MSTNON-TSTM WND GST 582 Nne Natural Fort, COMESONET STATION CO041 NATURAL FORT.
Jan 17, 6:05 PM MSTNON-TSTM WND GST 622 Ssw Laporte, COMESONET STATION FCC01 CHRISTMAN AIR FIELD.
Jan 17, 6:07 PM MSTNON-TSTM WND GST 722 Nw Genesee, COMESONET STATION CO065 I-70 @ GENESEE.
Jan 17, 6:10 PM MSTNON-TSTM WND GST 586 Sw Carr, COCDOT SENSOR CO166.
Jan 17, 6:17 PM MSTNON-TSTM WND GST 501 E Red Feather Lakes, COMESONET STATION EW0957 RED FEATHER LAKES.
Jan 17, 6:25 PM MSTNON-TSTM WND GST 525 Nnw Nunn, COMESONET STATION UP718 4.9 N NUNN (UPR).
Jan 17, 6:30 PM MSTNON-TSTM WND GST 533 Ssw Rocky Flats, COMESONET STATION FW2847 ARVADA.
Jan 17, 6:31 PM MSTNON-TSTM WND GST 563 Wnw Arvada, COMESONET STATION EW2549 ARVADA.
Jan 17, 6:32 PM MSTNON-TSTM WND GST 502 Ene Wiggins, COMESONET STATION CO039 WIGGINS @ BIJOU CREEK.
Jan 17, 6:32 PM MSTNON-TSTM WND GST 52Nunn, COMESONET STATION CO135 CO17100 NUNN.
Jan 17, 6:32 PM MSTNON-TSTM WND GST 542 Ese Sterling, COMESONET STATION CO035 STERLING.
Jan 17, 6:38 PM MSTNON-TSTM WND GST 582 S Rocky Flats, COMESONET STATION FW1909 ARVADA.
Jan 17, 6:45 PM MSTNON-TSTM WND GST 813 Nne White Ranch Open, COMESONET STATION UP709 2.8 NE WHITE RANCH OPEN SPACE (UPR).
Jan 17, 6:47 PM MSTNON-TSTM WND GST 52Floyd Hill, COMESONET STATION CO071 FLOYD HILL.
Jan 17, 6:47 PM MSTNON-TSTM WND GST 753 Nne Pleasant View, COMESONET STATION EW7094 GOLDEN.
Jan 17, 6:48 PM MSTNON-TSTM WND GST 545 N Pawnee Buttes, COAWOS STATION K1OW OSCAR MADIS.
Jan 17, 6:50 PM MSTNON-TSTM WND GST 693 Ese Buckeye, CORAWS SENSOR BEYC2.
Jan 17, 6:50 PM MSTNON-TSTM WND GST 853 Sw Rocky Flats, COMESONET STATION CO109 N-93 - JCT. 93 & 72.
Jan 17, 7:00 PM MSTNON-TSTM WND GST 572 Nne Rocky Flats, COMESONET STATION RFN 1.7 NE ROCKY FLATS (CDPHE).
Jan 17, 7:02 PM MSTNON-TSTM WND GST 503 Ene Nederland, COMESONET STATION FW1761 NEDERLAND.
Jan 17, 7:06 PM MSTNON-TSTM WND GST 615 S Lyons, COMESONET STATION EW8833 LONGMONT.
Jan 17, 7:10 PM MSTNON-TSTM WND GST 802 Nnw Rocky Flats, CO
Jan 17, 7:13 PM MSTNON-TSTM WND GST 504 Ene Nederland, COMESONET STATION DW5338 NEDERLAND.
Jan 17, 7:35 PM MSTNON-TSTM WND GST 571 Ne Aspen Springs, COMESONET STATION FW0549 BLACK HAWK.
Jan 17, 7:41 PM MSTNON-TSTM WND GST 783 Nw Marshall, CONCAR MESALAB STATION.
Jan 17, 7:52 PM MSTNON-TSTM WND GST 638 S Holyoke, COCDOT SENSOR CO048.
Jan 17, 7:56 PM MSTNON-TSTM WND GST 641 Ne Aspen Springs, COMESONET STATION DW4381 BLACK HAWK.
Jan 17, 7:58 PM MSTNON-TSTM WND GST 582 Wnw Brookvale, COMESONET STATION CEKC2 CORRAL CREEK.
Jan 17, 8:00 PM MSTNON-TSTM WND GST 60Akron, COASOS STATION KAKO AKRON.
Jan 17, 8:01 PM MSTNON-TSTM WND GST 781 Ne Crisman, COMESONET STATION EW4338 BOULDER.
Jan 17, 8:06 PM MSTNON-TSTM WND GST 641 N Glen Haven, COMESONET STATION EW4490 GLEN HAVEN.
Jan 17, 8:10 PM MSTNON-TSTM WND GST 553 Wsw Sterling, COAWOS STATION KSTK STERLING.
Jan 17, 8:10 PM MSTNON-TSTM WND GST 602 Wsw Golden, COMESONET STATION LOOC2 LOOKOUT MOUNTAIN.
Jan 17, 8:15 PM MSTNON-TSTM WND GST 581 N Akron, COKAKO ASOS.
Jan 17, 8:15 PM MSTNON-TSTM WND GST 642 W Log Lane Village, CO

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 12:00Z, 9.2 hours before the alert went out and 99 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 12:00Z on 2020-01-16Temperature 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 12:00Z on 2020-01-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 189 square meters per square second.1939587897117136Sfc1 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
1966 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
189 m²/s²
0-3 km storm-relative helicity
167 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

169 
WWUS75 KBOU 162109
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver CO
209 PM MST Thu Jan 16 2020

COZ035-036-038-039-171200-
/O.UPG.KBOU.HW.A.0001.200117T1800Z-200118T0900Z/
/O.NEW.KBOU.HW.W.0003.200117T1800Z-200118T0900Z/
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-
Larimer County Below 6000 Feet/Northwest Weld County-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
Including the cities of Estes Park, Glendevey, Nederland, 
Red Feather Lakes, Bailey, Central City, Evergreen, Georgetown, 
Idaho Springs, Westcreek, Fort Collins, Hereford, Loveland, Nunn,
Arvada, Boulder, Golden, Lakewood, and Longmont
209 PM MST Thu Jan 16 2020

...HIGH WIND WARNING IN EFFECT FROM 11 AM FRIDAY TO 2 AM MST
SATURDAY...

* WHAT...West winds 30 to 40 mph with gusts up to 75 mph 
  expected.

* WHERE...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, Larimer County Below 6000 Feet/Northwest Weld County and 
  Boulder and Jefferson Counties Below 6000 Feet/West Broomfield 
  County.

* WHEN...From 11 AM Friday to 2 AM MST Saturday.

* IMPACTS...Strong winds will blow around unsecured objects. 
  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.

&&

$$

COZ042-171200-
/O.UPG.KBOU.HW.A.0001.200117T1800Z-200118T0900Z/
/O.NEW.KBOU.HW.W.0003.200117T2000Z-200118T0900Z/
Northeast Weld County-
Including the cities of Briggsdale, Grover, Pawnee Buttes, 
Raymer, and Stoneham
209 PM MST Thu Jan 16 2020

...HIGH WIND WARNING IN EFFECT FROM 1 PM FRIDAY TO 2 AM MST
SATURDAY...

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

* WHERE...Northern Weld County.

* WHEN...From 1 PM Friday to 2 AM MST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Hazardous driving conditions due to powerful cross winds will 
pose a serious risk for drivers. Visibilities may be suddenly 
reduced to near zero when encountering blowing dust, so slow down
when approaching a plume of blowing dust and be prepared to stop.
Strong winds may lead to property damage. Loose outdoor items 
should be brought inside or secured properly.

&&

$$

COZ040-041-043>051-171200-
/O.NEW.KBOU.HW.W.0003.200117T2000Z-200118T0900Z/
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
Including the cities of Aurora, Brighton, City of Denver, 
Denver International Airport, Highlands Ranch, Littleton, Parker,
Castle Rock, Elbert, Fondis, Kiowa, Larkspur, Eaton, Fort Lupton,
Greeley, Roggen, Brush, Fort Morgan, Goodrich, Wiggins, Bennett, 
Byers, Deer Trail, Leader, Agate, Hugo, Limon, Matheson, Forder, 
Karval, Kutch, Punkin Center, Crook, Merino, Sterling, Peetz, 
Akron, Cope, Last Chance, Otis, Julesburg, Ovid, Sedgwick, 
Amherst, Haxtun, and Holyoke
209 PM MST Thu Jan 16 2020

...HIGH WIND WARNING IN EFFECT FROM 1 PM FRIDAY TO 2 AM MST
SATURDAY...

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

* WHERE...East central and northeast Colorado.

* WHEN...From 1 PM Friday to 2 AM MST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Hazardous driving conditions due to powerful cross winds will 
pose a serious risk for drivers. Visibilities may be suddenly 
reduced to near zero when encountering blowing dust, so slow down
when approaching a plume of blowing dust and be prepared to stop.
Strong winds may lead to property damage. Loose outdoor items 
should be brought inside or secured properly.

&&

$$
4 follow-up statements
389 
WWUS75 KBOU 171119
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver CO
419 AM MST Fri Jan 17 2020

COZ035-036-038-039-172300-
/O.CON.KBOU.HW.W.0003.200117T1800Z-200118T0900Z/
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-
Larimer County Below 6000 Feet/Northwest Weld County-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
Including the cities of Estes Park, Glendevey, Nederland, 
Red Feather Lakes, Bailey, Central City, Evergreen, Georgetown, 
Idaho Springs, Westcreek, Fort Collins, Hereford, Loveland, Nunn,
Arvada, Boulder, Golden, Lakewood, and Longmont
419 AM MST Fri Jan 17 2020

...HIGH WIND WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
2 AM MST SATURDAY...

* WHAT...West winds 30 to 40 mph with gusts up to 75 mph 
  expected.

* WHERE...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, Larimer County Below 6000 Feet/Northwest Weld County and 
  Boulder and Jefferson Counties Below 6000 Feet/West Broomfield 
  County.

* WHEN...From 11 AM Friday to 2 AM MST Saturday.

* IMPACTS...Strong winds will blow around unsecured objects. 
  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.

&&

$$

COZ040>051-172300-
/O.CON.KBOU.HW.W.0003.200117T2000Z-200118T0900Z/
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Northeast Weld County-Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
Including the cities of Aurora, Brighton, City of Denver, 
Denver International Airport, Highlands Ranch, Littleton, Parker,
Castle Rock, Elbert, Fondis, Kiowa, Larkspur, Briggsdale, Grover,
Pawnee Buttes, Raymer, Stoneham, Eaton, Fort Lupton, Greeley, 
Roggen, Brush, Fort Morgan, Goodrich, Wiggins, Bennett, Byers, 
Deer Trail, Leader, Agate, Hugo, Limon, Matheson, Forder, Karval,
Kutch, Punkin Center, Crook, Merino, Sterling, Peetz, Akron, 
Cope, Last Chance, Otis, Julesburg, Ovid, Sedgwick, Amherst, 
Haxtun, and Holyoke
419 AM MST Fri Jan 17 2020

...HIGH WIND WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON
TO 2 AM MST SATURDAY...

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

* WHERE...East central and northeast Colorado.

* WHEN...From 1 PM Friday to 2 AM MST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Hazardous driving conditions due to powerful cross winds will
pose a serious risk for drivers. Visibilities may be suddenly
reduced to near zero when encountering blowing dust, so slow down
when approaching a plume of blowing dust and be prepared to stop.
Strong winds may lead to property damage. Loose outdoor items
should be brought inside or secured properly.

&&

$$
071 
WWUS75 KBOU 171707
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver CO
1007 AM MST Fri Jan 17 2020

COZ035-036-038-039-180115-
/O.CON.KBOU.HW.W.0003.200117T1800Z-200118T0900Z/
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-
Larimer County Below 6000 Feet/Northwest Weld County-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
Including the cities of Estes Park, Glendevey, Nederland, 
Red Feather Lakes, Bailey, Central City, Evergreen, Georgetown, 
Idaho Springs, Westcreek, Fort Collins, Hereford, Loveland, Nunn,
Arvada, Boulder, Golden, Lakewood, and Longmont
1007 AM MST Fri Jan 17 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM MST SATURDAY...

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

* WHERE...Jefferson and West Douglas Counties Above 6000 
  Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 
  Feet, Larimer and Boulder Counties Between 6000 and 9000 Feet, 
  Boulder and Jefferson Counties Below 6000 Feet/West Broomfield 
  County and Larimer County Below 6000 Feet/Northwest Weld 
  County.

* WHEN...Until 2 AM MST Saturday.

* IMPACTS...Strong winds will blow around unsecured objects. 
  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.

&&

$$

COZ040>051-180115-
/O.CON.KBOU.HW.W.0003.200117T2000Z-200118T0900Z/
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Northeast Weld County-Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
Including the cities of Aurora, Brighton, City of Denver, 
Denver International Airport, Highlands Ranch, Littleton, Parker,
Castle Rock, Elbert, Fondis, Kiowa, Larkspur, Briggsdale, Grover,
Pawnee Buttes, Raymer, Stoneham, Eaton, Fort Lupton, Greeley, 
Roggen, Brush, Fort Morgan, Goodrich, Wiggins, Bennett, Byers, 
Deer Trail, Leader, Agate, Hugo, Limon, Matheson, Forder, Karval,
Kutch, Punkin Center, Crook, Merino, Sterling, Peetz, Akron, 
Cope, Last Chance, Otis, Julesburg, Ovid, Sedgwick, Amherst, 
Haxtun, and Holyoke
1007 AM MST Fri Jan 17 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM MST SATURDAY...

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

* WHERE...Much of east central and northeast Colorado.

* WHEN...High winds will spread east across the plains of Colorado
  this afternoon and early evening. High winds may last until 2 
  AM MST Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Hazardous driving conditions due to powerful cross winds will 
pose a serious risk for drivers. Visibilities may be suddenly 
reduced to near zero when encountering blowing dust, so slow down
when approaching a plume of blowing dust and be prepared to stop.
Strong winds may lead to property damage. Loose outdoor items 
should be brought inside or secured properly.

&&

$$
919 
WWUS75 KBOU 180309
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver CO
809 PM MST Fri Jan 17 2020

COZ040-041-043-045>047-180415-
/O.CAN.KBOU.HW.W.0003.000000T0000Z-200118T0900Z/
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Central and South Weld County-
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Including the cities of Aurora, Brighton, City of Denver, 
Denver International Airport, Highlands Ranch, Littleton, Parker,
Castle Rock, Elbert, Fondis, Kiowa, Larkspur, Eaton, Fort Lupton,
Greeley, Roggen, Bennett, Byers, Deer Trail, Leader, Agate, Hugo,
Limon, Matheson, Forder, Karval, Kutch, and Punkin Center
809 PM MST Fri Jan 17 2020

...HIGH WIND WARNING IS CANCELLED...

Strong winds have decreased this evening, therefore the High Wind
Warning has been cancelled. Gusts up to 45 mph will be possible
through around midnight. 

$$

COZ035-036-038-039-180900-
/O.CON.KBOU.HW.W.0003.000000T0000Z-200118T0900Z/
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-
Larimer County Below 6000 Feet/Northwest Weld County-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
Including the cities of Estes Park, Glendevey, Nederland, 
Red Feather Lakes, Bailey, Central City, Evergreen, Georgetown, 
Idaho Springs, Westcreek, Fort Collins, Hereford, Loveland, Nunn,
Arvada, Boulder, Golden, Lakewood, and Longmont
809 PM MST Fri Jan 17 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM MST SATURDAY...

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

* WHERE...Jefferson and West Douglas Counties Above 6000 
  Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 
  Feet, Larimer and Boulder Counties Between 6000 and 9000 Feet, 
  Boulder and Jefferson Counties Below 6000 Feet/West Broomfield 
  County and Larimer County Below 6000 Feet/Northwest Weld 
  County.

* WHEN...Until 2 AM MST Saturday.

* IMPACTS...Strong winds will blow around unsecured objects. 
  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.

&&

$$

COZ042-044-048>051-180900-
/O.CON.KBOU.HW.W.0003.000000T0000Z-200118T0900Z/
Northeast Weld County-Morgan County-Logan County-
Washington County-Sedgwick County-Phillips County-
Including the cities of 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
809 PM MST Fri Jan 17 2020

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 2 AM MST SATURDAY...

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

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

* WHEN...Until 2 AM MST Saturday.

* IMPACTS...Strong winds will blow around unsecured objects. 
  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.

&&

$$
402 
WWUS75 KBOU 180904
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver CO
204 AM MST Sat Jan 18 2020

COZ035-036-038-039-042-044-048>051-181015-
/O.EXP.KBOU.HW.W.0003.000000T0000Z-200118T0900Z/
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-
Larimer County Below 6000 Feet/Northwest Weld County-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-Northeast Weld County-Morgan County-Logan County-
Washington County-Sedgwick County-Phillips County-
Including the cities of Estes Park, Glendevey, Nederland, 
Red Feather Lakes, Bailey, Central City, Evergreen, Georgetown, 
Idaho Springs, Westcreek, Fort Collins, Hereford, Loveland, Nunn,
Arvada, Boulder, Golden, Lakewood, Longmont, 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
204 AM MST Sat Jan 18 2020

...HIGH WIND WARNING HAS EXPIRED...

The strong winds from earlier this afternoon and evening have 
weakened considerably. Steady northwest winds will persist 
overnight mainly along the Colorado, Wyoming and Nebraska 
borders, however gusts are expected to remain under 30 mph.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 16, 4:33 AM MSTHigh Wind WatchBOUBoulder, Broomfield, Clear Creek, Douglas, Gilpin, Jefferson and 3 more10 hr
Jan 16, 2:01 PM MSTWinter Weather AdvisoryBOUBoulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more30 hr

Nearby

High Wind Warnings in Colorado, 2020Every high wind warning in 2020

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; radar from the NEXRAD Level II archive.