Alert archive / Colorado / High Wind Warnings in 2021

High Wind Warning 6, NWS Denver/Boulder, CO

October 12, 20216 counties in Colorado

NWS Denver/Boulder, CO issued this high wind warning at Oct 12, 2021, 2:47 PM MDT for 6 counties in Colorado. It took effect at Oct 13, 2021, 12:00 AM MDT. It was in force for 15 hr. 5 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
Oct 12, 2021, 2:47 PM MDT (20:47 UTC)
In effect from
Oct 13, 2021, 12:00 AM MDT
Expired
Oct 13, 2021, 2:50 PM MDT
In force
15 hr
Issued by
NWS Denver/Boulder, CO

Counties Boulder County, CO, Larimer County, CO, Logan County, CO, Phillips County, CO, Sedgwick County, CO, Weld County, CO

The radar

The Cheyenne radar (KCYS), 103 km from the middle of the area, began a volume at 20:48 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
Oct 13, 6:00 AM MDTSNOW 0.52 N Lyons, COCOCORAHS STATION CO-BO-137 LYONS 1.8 N.
Oct 13, 7:00 AM MDTSNOW 0.52 S Estes Park, COCOCORAHS STATION CO-LR-767 ESTES PARK 1.8 S.
Oct 13, 7:00 AM MDTSNOW 1.8Nederland, COCOCORAHS STATION CO-BO-92 NEDERLAND .47 ESE.
Oct 13, 7:00 AM MDTSNOW 21 Ssw Carr, COCOCORAHS STATION CO-WE-127 CARR 0.6 S.
Oct 13, 7:00 AM MDTSNOW 2.14 S Cherokee Park, COCOCORAHS STATION CO-LR-329 RED FEATHER 5.9 NE.

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, 8.8 hours before the alert went out and 95 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 2021-10-12Temperature 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 2021-10-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 170 square meters per square second.1939587897117Sfc1 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
1285 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
170 m²/s²
0-3 km storm-relative helicity
335 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

191 
WWUS75 KBOU 122047
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver/Boulder CO
247 PM MDT Tue Oct 12 2021

COZ035-130900-
/O.UPG.KBOU.HW.A.0004.211013T0600Z-211013T1800Z/
/O.NEW.KBOU.HW.W.0006.211013T0600Z-211013T1800Z/
Larimer and Boulder Counties Between 6000 and 9000 Feet-
Including Estes Park, Glendevey, Nederland, and Red Feather Lakes
247 PM MDT Tue Oct 12 2021

...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT
WEDNESDAY...

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

* WHERE...The Northern Front Range Foothills.

* WHEN...From midnight tonight to noon MDT Wednesday.

* 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. 

* ADDITIONAL DETAILS...Damaging winds will blow down trees and
  power lines. Travel will be difficult, especially 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.

&&

$$

COZ041-046-047-130000-
/O.CON.KBOU.HW.W.0005.000000T0000Z-211013T0000Z/
Elbert/Central and East Douglas Counties Above 6000 Feet-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Including Castle Rock, Elbert, Fondis, Kiowa, Larkspur, Agate, 
Hugo, Limon, Matheson, Forder, Karval, Kutch, and Punkin Center
247 PM MDT Tue Oct 12 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

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

* WHERE...Palmer Divide including Castle Rock, Elbert, and 
  Larkspur, Eastern Elbert and Northern Lincoln Counties and 
  Southern Lincoln County.

* WHEN...Until 6 PM MDT 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. 

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.

&&

$$
6 follow-up statements
648 
WWUS75 KBOU 122350
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver/Boulder CO
550 PM MDT Tue Oct 12 2021

COZ041-046-047-130100-
/O.EXP.KBOU.HW.W.0005.000000T0000Z-211013T0000Z/
Elbert/Central and East Douglas Counties Above 6000 Feet-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Including Castle Rock, Elbert, Fondis, Kiowa, Larkspur, Agate, 
Hugo, Limon, Matheson, Forder, Karval, Kutch, and Punkin Center
550 PM MDT Tue Oct 12 2021

...HIGH WIND WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING...

The wind has dropped below warning criteria, therefore the High 
Wind Warning will be allowed to expire at 6 PM MDT.

$$

COZ042-048-050-051-131200-
/O.EXB.KBOU.HW.W.0006.211013T1200Z-211014T0000Z/
Northeast Weld County-Logan County-Sedgwick County-
Phillips County-
Including Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, 
Crook, Merino, Sterling, Peetz, Julesburg, Ovid, Sedgwick, 
Amherst, Haxtun, and Holyoke
550 PM MDT Tue Oct 12 2021

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

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

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

* WHEN...From 6 AM to 6 PM MDT Wednesday.

* 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.

&&

$$

COZ035-131200-
/O.CON.KBOU.HW.W.0006.211013T0600Z-211013T1800Z/
Larimer and Boulder Counties Between 6000 and 9000 Feet-
Including Estes Park, Glendevey, Nederland, and Red Feather Lakes
550 PM MDT Tue Oct 12 2021

...HIGH WIND WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
NOON MDT WEDNESDAY...

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

* WHERE...The Northern Front Range Foothills.

* WHEN...From midnight tonight to noon MDT Wednesday.

* 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. 

* ADDITIONAL DETAILS...Damaging winds will blow down trees and
  power lines. Travel will be difficult, especially 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.

&&

$$
673 
WWUS75 KBOU 130353
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver CO
953 PM MDT Tue Oct 12 2021

COZ042-048-131200-
/O.NEW.KBOU.FZ.W.0001.211013T0353Z-211013T1400Z/
/O.CON.KBOU.HW.W.0006.211013T1200Z-211014T0000Z/
Northeast Weld County-Logan County-
Including the cities of Sterling, Pawnee Buttes, Stoneham, Crook,
Grover, Briggsdale, Merino, Peetz, and Raymer
953 PM MDT Tue Oct 12 2021

...FREEZE WARNING IN EFFECT UNTIL 8 AM MDT WEDNESDAY...
...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 AM TO 6 PM MDT 
WEDNESDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as low as 
  30 ongoing. For the High Wind Warning, northwest winds 25 to 35 
  mph with gusts up to 55 mph expected.

* WHERE...Logan County and Northeast Weld County Counties.

* WHEN...For the Freeze Warning, until 8 AM MDT Wednesday. For the 
  High Wind Warning, from 6 AM to 6 PM MDT Wednesday.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

COZ038>041-043>046-049-131200-
/O.NEW.KBOU.FZ.W.0001.211013T0353Z-211013T1400Z/
Larimer County Below 6000 Feet/Northwest Weld County-Boulder And
Jefferson Counties Below 6000 Feet/West Broomfield County-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-
Washington County-
Including the cities of Wiggins, Fort Morgan, Elbert, Hugo,
Roggen, Arvada, Byers, Larkspur, Agate, Leader, Boulder, City of
Denver, Cope, Aurora, Littleton, Akron, Last Chance, Brighton,
Highlands Ranch, Fort Lupton, Matheson, Loveland, Kiowa, Eaton,
Deer Trail, Longmont, Fondis, Denver International Airport,
Goodrich, Golden, Parker, Castle Rock, Lakewood, Otis, Fort
Collins, Greeley, Bennett, Nunn, Brush, Limon, and Hereford
953 PM MDT Tue Oct 12 2021

...FREEZE WARNING IN EFFECT UNTIL 8 AM MDT WEDNESDAY...

* WHAT...Sub-freezing temperatures as low as 29 ongoing.

* WHERE...North and Northeast Elbert County Below 6000 Feet/North 
  Lincoln County, Larimer County Below 6000 Feet/Northwest Weld 
  County, Boulder and Jefferson Counties Below 6000 Feet/West 
  Broomfield County, Central and East Adams and Arapahoe Counties, 
  Central and South Weld County, Elbert/Central and East Douglas 
  Counties Above 6000 Feet, Morgan County, North Douglas County 
  Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East 
  Broomfield County and Washington County Counties.

* WHEN...Until 8 AM MDT Wednesday.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

COZ035-131200-
/O.CON.KBOU.HW.W.0006.211013T0600Z-211013T1800Z/
Larimer and Boulder Counties Between 6000 and 9000 Feet-
Including the cities of Red Feather Lakes, Glendevey, Nederland,
and Estes Park
953 PM MDT Tue Oct 12 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MDT WEDNESDAY...

* WHAT...West winds 25 to 35 mph with gusts up to 75 mph expected.

* WHERE...Larimer and Boulder Counties Between 6000 and 9000 Feet 
  County.

* WHEN...Until Noon MDT Wednesday.

$$

COZ050-051-131200-
/O.CON.KBOU.HW.W.0006.211013T1200Z-211014T0000Z/
Sedgwick County-Phillips County-
Including the cities of Ovid, Holyoke, Julesburg, Amherst,
Sedgwick, and Haxtun
953 PM MDT Tue Oct 12 2021

...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 AM TO 6 PM MDT 
WEDNESDAY...

* WHAT...Northwest winds 25 to 35 mph with gusts up to 55 mph 
  expected.

* WHERE...Phillips County and Sedgwick County Counties.

* WHEN...From 6 AM to 6 PM MDT Wednesday.

$$

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

Entrekin
509 
WWUS75 KBOU 131114
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver CO
514 AM MDT Wed Oct 13 2021

COZ042-048-132000-
/O.CON.KBOU.FZ.W.0001.000000T0000Z-211013T1400Z/
/O.CON.KBOU.HW.W.0006.211013T1200Z-211014T0000Z/
Northeast Weld County-Logan County-
Including the cities of Sterling, Pawnee Buttes, Stoneham, Crook,
Grover, Briggsdale, Merino, Peetz, and Raymer
514 AM MDT Wed Oct 13 2021

...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM MDT THIS MORNING...
...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING...

* WHAT...For the Freeze Warning, sub-freezing temperatures as low as 
  31 ongoing. For the High Wind Warning, northwest winds 30 to 40 
  mph with gusts up to 60 mph expected.

* WHERE...Logan County and Northeast Weld County Counties.

* WHEN...For the Freeze Warning, until 8 AM MDT this morning. For 
  the High Wind Warning, until 6 PM MDT this evening.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

COZ038>041-043>046-049-131400-
/O.CON.KBOU.FZ.W.0001.000000T0000Z-211013T1400Z/
Larimer County Below 6000 Feet/Northwest Weld County-Boulder And
Jefferson Counties Below 6000 Feet/West Broomfield County-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-
Washington County-
Including the cities of Wiggins, Fort Morgan, Elbert, Hugo,
Roggen, Arvada, Byers, Larkspur, Agate, Leader, Boulder, City of
Denver, Cope, Aurora, Littleton, Akron, Last Chance, Brighton,
Highlands Ranch, Fort Lupton, Matheson, Loveland, Kiowa, Eaton,
Deer Trail, Longmont, Fondis, Denver International Airport,
Goodrich, Golden, Parker, Castle Rock, Lakewood, Otis, Fort
Collins, Greeley, Bennett, Nunn, Brush, Limon, and Hereford
514 AM MDT Wed Oct 13 2021

...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM MDT THIS MORNING...

* WHAT...Sub-freezing temperatures as low as 29 ongoing.

* WHERE...North and Northeast Elbert County Below 6000 Feet/North 
  Lincoln County, Larimer County Below 6000 Feet/Northwest Weld 
  County, Boulder and Jefferson Counties Below 6000 Feet/West 
  Broomfield County, Central and East Adams and Arapahoe Counties, 
  Central and South Weld County, Elbert/Central and East Douglas 
  Counties Above 6000 Feet, Morgan County, North Douglas County 
  Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East 
  Broomfield County and Washington County Counties.

* WHEN...Until 8 AM MDT this morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

COZ035-131800-
/O.CON.KBOU.HW.W.0006.000000T0000Z-211013T1800Z/
Larimer and Boulder Counties Between 6000 and 9000 Feet-
Including the cities of Red Feather Lakes, Glendevey, Nederland,
and Estes Park
514 AM MDT Wed Oct 13 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY...

* WHAT...West winds 35 to 45 mph with gusts up to 75 mph ongoing.

* WHERE...Larimer and Boulder Counties Between 6000 and 9000 Feet 
  County.

* WHEN...Until Noon MDT today.

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

$$

COZ050-051-132000-
/O.CON.KBOU.HW.W.0006.211013T1200Z-211014T0000Z/
Sedgwick County-Phillips County-
Including the cities of Ovid, Holyoke, Julesburg, Amherst,
Sedgwick, and Haxtun
514 AM MDT Wed Oct 13 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING...

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

* WHERE...Phillips County and Sedgwick County Counties.

* WHEN...Until 6 PM MDT 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.

$$

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

Entrekin
585 
WWUS75 KBOU 131429
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver/Boulder CO
829 AM MDT Wed Oct 13 2021

COZ042-048-140000-
/O.EXP.KBOU.FZ.W.0001.000000T0000Z-211013T1400Z/
/O.CON.KBOU.HW.W.0006.000000T0000Z-211014T0000Z/
Northeast Weld County-Logan County-
Including Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, 
Crook, Merino, Sterling, and Peetz
829 AM MDT Wed Oct 13 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
...FREEZE WARNING HAS EXPIRED...

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

* WHERE...Northeast Weld County and Logan County.

* WHEN...Until 6 PM MDT 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. 

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.

&&

$$

COZ038>041-043>046-049-131530-
/O.EXP.KBOU.FZ.W.0001.000000T0000Z-211013T1400Z/
Larimer County Below 6000 Feet/Northwest Weld County-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
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-Washington County-
Including Fort Collins, Hereford, Loveland, Nunn, Arvada, 
Boulder, Golden, Lakewood, Longmont, 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, Akron, Cope, Last Chance, and Otis
829 AM MDT Wed Oct 13 2021

...FREEZE WARNING HAS EXPIRED...

Temperatures are warming above freezing this morning so the Freeze
Warning was allowed to expire.

$$

COZ050-051-140000-
/O.CON.KBOU.HW.W.0006.000000T0000Z-211014T0000Z/
Sedgwick County-Phillips County-
Including Julesburg, Ovid, Sedgwick, Amherst, Haxtun, and Holyoke
829 AM MDT Wed Oct 13 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

* WHAT...Northwest winds 30 to 40 mph with gusts up to 55 mph.

* WHERE...Phillips County and Sedgwick County.

* WHEN...Until 6 PM MDT 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. 

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.

&&

$$

COZ035-131800-
/O.CON.KBOU.HW.W.0006.000000T0000Z-211013T1800Z/
Larimer and Boulder Counties Between 6000 and 9000 Feet-
Including Estes Park, Glendevey, Nederland, and Red Feather Lakes
829 AM MDT Wed Oct 13 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY...

* WHAT...West winds 35 to 45 mph with gusts up to 75 mph.

* WHERE...The Northern Front Range Foothills.

* WHEN...Until noon MDT today.

* 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.

&&

$$
457 
WWUS75 KBOU 131758
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver/Boulder CO
1158 AM MDT Wed Oct 13 2021

COZ035-131900-
/O.EXP.KBOU.HW.W.0006.000000T0000Z-211013T1800Z/
Larimer and Boulder Counties Between 6000 and 9000 Feet-
Including Estes Park, Glendevey, Nederland, and Red Feather Lakes
1158 AM MDT Wed Oct 13 2021

...HIGH WIND WARNING WILL EXPIRE AT NOON MDT TODAY...

While strong winds up to 60 mph will persist into the afternoon, 
gusts will no longer reach the High Wind Warning criteria of 75 
mph so the warning will be allowed to expire.

$$

COZ042-048-050-051-140000-
/O.CON.KBOU.HW.W.0006.000000T0000Z-211014T0000Z/
Northeast Weld County-Logan County-Sedgwick County-
Phillips County-
Including Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, 
Crook, Merino, Sterling, Peetz, Julesburg, Ovid, Sedgwick, 
Amherst, Haxtun, and Holyoke
1158 AM MDT Wed Oct 13 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...

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

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

* WHEN...Until 6 PM MDT 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. 

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.

&&

$$
371 
WWUS75 KBOU 132050
NPWBOU

URGENT - WEATHER MESSAGE
National Weather Service Denver/Boulder CO
250 PM MDT Wed Oct 13 2021

COZ042-048-050-051-132200-
/O.CAN.KBOU.HW.W.0006.000000T0000Z-211014T0000Z/
Northeast Weld County-Logan County-Sedgwick County-
Phillips County-
Including Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, 
Crook, Merino, Sterling, Peetz, Julesburg, Ovid, Sedgwick, 
Amherst, Haxtun, and Holyoke
250 PM MDT Wed Oct 13 2021

...HIGH WIND WARNING IS CANCELLED...

Winds have dropped below High Wind Warning criteria this afternoon
and will only get weaker as the day progresses towards sunset. The
High Wind Warning has been cancelled. 

$$

COZ041-140500-
/O.NEW.KBOU.FZ.W.0002.211014T0800Z-211014T1500Z/
Elbert/Central and East Douglas Counties Above 6000 Feet-
Including Castle Rock, Elbert, Fondis, Kiowa, and Larkspur
250 PM MDT Wed Oct 13 2021

...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM MDT THURSDAY...

* WHAT...Sub-freezing temperatures as low as 28 expected.

* WHERE...Palmer Divide including Castle Rock, Elbert, and 
  Larkspur.

* WHEN...From 2 AM to 9 AM MDT Thursday.

* IMPACTS...Frost and freeze conditions will kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 12, 3:56 AM MDTHigh Wind WatchBOUBoulder, Larimer11 hr
Oct 12, 3:56 AM MDTHigh Wind WarningBOUArapahoe, Douglas, Elbert, Lincoln14 hr
Oct 12, 5:05 PM MDTSpecial Weather StatementBOULogan25 min
Oct 12, 5:18 PM MDTSevere Thunderstorm WarningBOULogan, Phillips, Sedgwick42 min
Oct 12, 5:54 PM MDTTornado WarningBOUPhillips36 min

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; radar from the NEXRAD Level II archive.