Alert archive / Colorado / Blizzard Warnings in 2017
Blizzard Warning 1, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this blizzard warning at Mar 23, 2017, 3:28 PM MDT for 5 counties in Colorado. It took effect at Mar 24, 2017, 12:00 AM MDT. It was in force for 12 hr. 12 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 23, 2017, 3:28 PM MDT (21:28 UTC)
- In effect from
- Mar 24, 2017, 12:00 AM MDT
- Expired
- Mar 24, 2017, 12:00 PM MDT
- In force
- 12 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Adams County, CO, Arapahoe County, CO, Douglas County, CO, Elbert County, CO, Lincoln County, CO
The radar
The Denver radar (KFTG), 47 km from the middle of the area, began a volume at 21:26 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 24, 5:58 AM MDT | SNOW 1.4 | Ese Castle Pines, CO | |
| Mar 24, 7:00 AM MDT | SNOW 2.5 | 5 Nne Parker, CO | |
| Mar 24, 7:00 AM MDT | HEAVY SNOW 7 | 3 Ese Castle Rock, CO | |
| Mar 24, 7:00 AM MDT | HEAVY SNOW 7.1 | 2 Wnw Larkspur, CO | |
| Mar 24, 7:30 AM MDT | SNOW 4 | Cheesman Reservoir, CO | |
| Mar 24, 8:00 AM MDT | SNOW 2 | 2 Wsw Byers, CO | |
| Mar 24, 8:00 AM MDT | SNOW 2 | 3 E Franktown, CO | |
| Mar 24, 8:00 AM MDT | HEAVY SNOW 11 | 1 Ese The Pinery, CO | |
| Mar 24, 8:30 AM MDT | SNOW 4.8 | 1 Ssw Bennett, CO | |
| Mar 24, 9:45 AM MDT | HEAVY SNOW 10.5 | 1 Wnw Ponderosa Park, CO | |
| Mar 24, 10:30 AM MDT | HEAVY SNOW 7 | 7 Se Watkins, CO | |
| Mar 24, 11:24 AM MDT | SNOW 5 | Simla, 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 (KDEN), launched 12:00Z, 9.5 hours before the alert went out and 100 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 3043 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 33 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
824 WWUS45 KBOU 232128 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver/Boulder CO 328 PM MDT Thu Mar 23 2017 ...Strong storm to blizzard conditions bring snow, rain and wind later tonight and ate tonight through Friday morning across the Palmer Divide towards the Limon area... A spring storm will bring much needed precipitation to northeast and north central Colorado. Precipitation is expected to develop across the forecast area tonight and then intensify late tonight through Friday morning as the storm system strengthens over southeast Colorado. Moderate to heavy snowfall can be expected over the mountains, foothills, Palmer Ridge and some adjacent plains tonight into Friday morning, heaviest along and south of of the I-70 corridor. Very strong northerly winds will develop late tonight and continue through midday Friday across the plains. Blizzard conditions will be possible from the Palmer Divide east towards Limon and north across central and eastern Adams and Arapahoe Counties with zero visiblities at times. COZ041-240530- /O.UPG.KBOU.BZ.A.0001.170324T0600Z-170324T1800Z/ /O.NEW.KBOU.BZ.W.0001.170324T0600Z-170324T1800Z/ Elbert/Central and East Douglas Counties Above 6000 Feet- Including the cities of Castle Rock, Elbert, Fondis, Kiowa, and Larkspur 328 PM MDT Thu Mar 23 2017 ...BLIZZARD WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT FRIDAY... The National Weather Service in Denver has issued a Blizzard Warning, which is in effect from midnight tonight to noon MDT Friday. The Blizzard Watch is no longer in effect. * TIMING...Snow will increase in intensity after midnight, and continue through Friday morning. * SNOW ACCUMULATIONS...6 to 12 inches over the Palmer Ridge. Snowfall rates up to two inches per hour will be possible Friday morning. * WIND/VISIBILITY...Northerly winds are expected to increase to 30 to 40 mph with gusts to 55 mph over the Palmer Ridge late tonight through Friday morning. Visibilities will be near zero at times. * IMPACTS...Heavy snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ COZ045-046-240530- /O.UPG.KBOU.BZ.A.0001.170324T0900Z-170324T1800Z/ /O.NEW.KBOU.BZ.W.0001.170324T0900Z-170324T1800Z/ Central and East Adams and Arapahoe Counties- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Including the cities of Bennett, Byers, Deer Trail, Leader, Agate, Hugo, Limon, and Matheson 328 PM MDT Thu Mar 23 2017 ...BLIZZARD WARNING IN EFFECT FROM 3 AM TO NOON MDT FRIDAY... The National Weather Service in Denver has issued a Blizzard Warning, which is in effect from 3 AM to noon MDT Friday. The Blizzard Watch is no longer in effect. * TIMING...Rain will change to snow late tonight and continue through midday Friday before decreasing in the afternoon. * SNOW ACCUMULATIONS...5 to 10 inches. * WIND/VISIBILITY...North winds will increase to 30 to 45 mph late tonight with gusts up to 55 mph at times through early Friday afternoon. Visibilities will be near zero at times. * IMPACTS...Heavy snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ COZ036-240530- /O.UPG.KBOU.WS.A.0007.170324T0600Z-170324T1800Z/ /O.NEW.KBOU.WS.W.0006.170324T0600Z-170324T1800Z/ Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- Including the cities of Bailey, Central City, Evergreen, Georgetown, Idaho Springs, and Westcreek 328 PM MDT Thu Mar 23 2017 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT FRIDAY... The National Weather Service in Denver has issued a Winter Storm Warning for heavy snow, which is in effect from midnight tonight to noon MDT Friday. The Winter Storm Watch is no longer in effect. * TIMING...Snow will increase in intensity over the mountains and southern foothills after midnight and continue through Friday morning. The heaviest snowfall is likely from late tonight through Friday morning. * SNOW ACCUMULATIONS...6 to 12 inches over the high mountains and southern foothills. Snowfall rates up to two inches per hour will be possible in the mountains and southern foothills early Friday morning. * WIND/VISIBILITY...Northerly winds from 15 to 25 mph with gusts to 35 mph are expected over the southern Foothills late tonight through Friday morning. Speeds will be much lighter in the mountains with gusts up to 20 mph at times. Visibilities could be under one quarter of a mile in the windiest areas. * IMPACTS...Heavy snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for heavy snow means severe winter weather conditions are expected or occurring. Significant amounts of snow are forecast that will make travel dangerous. Only travel in an emergency. If you must travel...keep an extra flashlight... food...and water in your vehicle in case of an emergency. && $$ COZ034-240530- /O.UPG.KBOU.WS.A.0007.170324T0600Z-170324T1800Z/ /O.EXB.KBOU.WW.Y.0015.170324T0900Z-170324T1800Z/ South and Southeast Grand/West Central and Southwest Boulder/ Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet- Including the cities of Berthoud Pass, Breckenridge, East Slopes Mosquito Range, East Slopes Southern Gore Range, Eisenhower Tunnel, Indian Peaks, Kenosha Mountains, Mount Evans, Williams Fork Mountains, and Winter Park 328 PM MDT Thu Mar 23 2017 ...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO NOON MDT FRIDAY... The National Weather Service in Denver has issued a Winter Weather Advisory for snow, which is in effect from 3 AM to noon MDT Friday. The Winter Storm Watch is no longer in effect. * TIMING...Snow will increase in intensity over the mountains and southern foothills after midnight and continue through Friday morning. The heaviest snowfall is likely from late tonight through Friday morning. * SNOW ACCUMULATIONS...4 to 8 inches mainly over the eastern slopes. * WIND/VISIBILITY...Northerly winds from 15 to 25 mph with gusts to 35 mph are expected over the southern Foothills late tonight through Friday morning. Speeds will be much lighter in the mountains with gusts up to 20 mph at times. Visibilities could be under one quarter of a mile in the windiest areas. * IMPACTS...Snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for blowing snow means that visibilities will be limited due to strong winds blowing snow around. Use caution when traveling...especially in open areas. && $$ COZ039-040-049-240530- /O.EXB.KBOU.WW.Y.0015.170324T0900Z-170324T1800Z/ 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-Washington County- Including the cities of Arvada, Boulder, Golden, Lakewood, Longmont, Aurora, Brighton, City of Denver, Denver International Airport, Highlands Ranch, Littleton, Parker, Akron, Cope, Last Chance, and Otis 328 PM MDT Thu Mar 23 2017 ...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO NOON MDT FRIDAY... The National Weather Service in Denver has issued a Winter Weather Advisory for snow ans blowing snow, which is in effect from 3 AM to noon MDT Friday. * TIMING...Snow will increase in intensity over the northern mountains after midnight and continue into Friday morning. The heaviest snowfall is likely from late night through mid morning Friday. * SNOW ACCUMULATIONS...3 to 6 inches. * WIND/VISIBILITY...North 20 to 35 mph with gusts to 45 mph. Visibilities could be under one quarter of a mile in heavier snow. * IMPACTS...Snow, gusty winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means that periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities...and use caution while driving. && $$ COZ035-240530- /O.EXA.KBOU.WW.Y.0015.170324T0600Z-170324T1800Z/ Larimer and Boulder Counties Between 6000 and 9000 Feet- Including the cities of Estes Park, Glendevey, Nederland, and Red Feather Lakes 328 PM MDT Thu Mar 23 2017 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT FRIDAY... The National Weather Service in Denver has issued a Winter Weather Advisory for snow, which is in effect from midnight tonight to noon MDT Friday. * TIMING...Snow will increase in intensity over the northern mountains after midnight and continue into Friday morning. The heaviest snowfall is likely from late night through mid morning Friday. * SNOW ACCUMULATIONS...4 to 8 inches. * WIND/VISIBILITY...North 15 to 30 mph. Visibilities could be under one quarter of a mile in heavier snow. * IMPACTS...Snow, gusty winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means that periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities...and use caution while driving. && $$ COZ033-240530- /O.CON.KBOU.WW.Y.0015.170324T0600Z-170324T1800Z/ South and East Jackson/Larimer/North and Northeast Grand/ Northwest Boulder Counties Above 9000 Feet- Including the cities of Cameron Pass, Laramie and Medicine Bow Mountains, Rabbit Ears Range, Rocky Mountain National Park, and Willow Creek Pass 328 PM MDT Thu Mar 23 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT FRIDAY... * TIMING...Snow will increase in intensity over the northern mountains after midnight and continue into Friday morning. The heaviest snowfall is likely from late night through mid morning Friday. * SNOW ACCUMULATIONS...4 to 8 inches mainly on east facing slopes. * WIND/VISIBILITY...North 15 to 30 mph. Visibilities could be under one quarter of a mile in heavier snow. * IMPACTS...Snow, gusty winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means that periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities...and use caution while driving. && $$
8 follow-up statements
246 WWUS45 KBOU 232130 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver/Boulder CO 330 PM MDT Thu Mar 23 2017 ...Strong storm to bring blizzard conditions to parts of northeastern Colorado... A spring storm will bring much needed precipitation to northeast and north central Colorado. Precipitation is expected to develop across the forecast area tonight and then intensify late tonight through Friday morning as the storm system strengthens over southeast Colorado. Moderate to heavy snowfall can be expected over the mountains, foothills, Palmer Ridge and some adjacent plains tonight into Friday morning, heaviest along and south of of the I-70 corridor. Very strong northerly winds will develop late tonight and continue through midday Friday across the plains. Blizzard conditions will be possible from the Palmer Divide east towards Limon and north across central and eastern Adams and Arapahoe Counties with zero visiblities at times. COZ041-240530- /O.CON.KBOU.BZ.W.0001.170324T0600Z-170324T1800Z/ Elbert/Central and East Douglas Counties Above 6000 Feet- Including the cities of Castle Rock, Elbert, Fondis, Kiowa, and Larkspur 330 PM MDT Thu Mar 23 2017 ...BLIZZARD WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT FRIDAY... * TIMING...Snow will increase in intensity after midnight, and continue through Friday morning. * SNOW ACCUMULATIONS...6 to 12 inches over the Palmer Ridge. Snowfall rates up to two inches per hour will be possible Friday morning. * WIND/VISIBILITY...Northerly winds are expected to increase to 30 to 40 mph with gusts to 55 mph over the Palmer Ridge late tonight through Friday morning. Visibilities will be near zero at times. * IMPACTS...Heavy snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ COZ045-046-240530- /O.CON.KBOU.BZ.W.0001.170324T0900Z-170324T1800Z/ Central and East Adams and Arapahoe Counties- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Including the cities of Bennett, Byers, Deer Trail, Leader, Agate, Hugo, Limon, and Matheson 330 PM MDT Thu Mar 23 2017 ...BLIZZARD WARNING REMAINS IN EFFECT FROM 3 AM TO NOON MDT FRIDAY... * TIMING...Rain will change to snow late tonight and continue through midday Friday before decreasing in the afternoon. * SNOW ACCUMULATIONS...5 to 10 inches. * WIND/VISIBILITY...North winds will increase to 30 to 45 mph late tonight with gusts up to 55 mph at times through early Friday afternoon. Visibilities will be near zero at times. * IMPACTS...Heavy snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ COZ036-240530- /O.CON.KBOU.WS.W.0006.170324T0600Z-170324T1800Z/ Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- Including the cities of Bailey, Central City, Evergreen, Georgetown, Idaho Springs, and Westcreek 330 PM MDT Thu Mar 23 2017 ...WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT FRIDAY... * TIMING...Snow will increase in intensity over the mountains and southern foothills after midnight and continue through Friday morning. The heaviest snowfall is likely from late tonight through Friday morning. * SNOW ACCUMULATIONS...6 to 12 inches over the high mountains and southern foothills. Snowfall rates up to two inches per hour will be possible in the mountains and southern foothills early Friday morning. * WIND/VISIBILITY...Northerly winds from 15 to 25 mph with gusts to 35 mph are expected over the southern Foothills late tonight through Friday morning. Speeds will be much lighter in the mountains with gusts up to 20 mph at times. Visibilities could be under one quarter of a mile in the windiest areas. * IMPACTS...Heavy snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for heavy snow means severe winter weather conditions are expected or occurring. Significant amounts of snow are forecast that will make travel dangerous. Only travel in an emergency. If you must travel...keep an extra flashlight... food...and water in your vehicle in case of an emergency. && $$ COZ034-240530- /O.CON.KBOU.WW.Y.0015.170324T0900Z-170324T1800Z/ South and Southeast Grand/West Central and Southwest Boulder/ Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet- Including the cities of Berthoud Pass, Breckenridge, East Slopes Mosquito Range, East Slopes Southern Gore Range, Eisenhower Tunnel, Indian Peaks, Kenosha Mountains, Mount Evans, Williams Fork Mountains, and Winter Park 330 PM MDT Thu Mar 23 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM TO NOON MDT FRIDAY... * TIMING...Snow will increase in intensity over the mountains and southern foothills after midnight and continue through Friday morning. The heaviest snowfall is likely from late tonight through Friday morning. * SNOW ACCUMULATIONS...4 to 8 inches mainly over the eastern slopes. * WIND/VISIBILITY...Northerly winds from 15 to 25 mph with gusts to 35 mph are expected over the southern Foothills late tonight through Friday morning. Speeds will be much lighter in the mountains with gusts up to 20 mph at times. Visibilities could be under one quarter of a mile in the windiest areas. * IMPACTS...Snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for blowing snow means that visibilities will be limited due to strong winds blowing snow around. Use caution when traveling...especially in open areas. && $$ COZ039-040-049-240530- /O.CON.KBOU.WW.Y.0015.170324T0900Z-170324T1800Z/ Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County-Washington County- Including the cities of Arvada, Boulder, Golden, Lakewood, Longmont, Aurora, Brighton, City of Denver, Denver International Airport, Highlands Ranch, Littleton, Parker, Akron, Cope, Last Chance, and Otis 330 PM MDT Thu Mar 23 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM TO NOON MDT FRIDAY... * TIMING...Snow will increase in intensity over the northern mountains after midnight and continue into Friday morning. The heaviest snowfall is likely from late night through mid morning Friday. * SNOW ACCUMULATIONS...3 to 6 inches. * WIND/VISIBILITY...North 20 to 35 mph with gusts to 45 mph. Visibilities could be under one quarter of a mile in heavier snow. * IMPACTS...Snow, gusty winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means that periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities...and use caution while driving. && $$ COZ033-035-240530- /O.CON.KBOU.WW.Y.0015.170324T0600Z-170324T1800Z/ South and East Jackson/Larimer/North and Northeast Grand/ Northwest Boulder Counties Above 9000 Feet- Larimer and Boulder Counties Between 6000 and 9000 Feet- Including the cities of Cameron Pass, Laramie and Medicine Bow Mountains, Rabbit Ears Range, Rocky Mountain National Park, Willow Creek Pass, Estes Park, Glendevey, Nederland, and Red Feather Lakes 330 PM MDT Thu Mar 23 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO NOON MDT FRIDAY... * TIMING...Snow will increase in intensity over the northern mountains after midnight and continue into Friday morning. The heaviest snowfall is likely from late night through mid morning Friday. * SNOW ACCUMULATIONS...4 to 8 inches. * WIND/VISIBILITY...North 15 to 30 mph. Visibilities could be under one quarter of a mile in heavier snow. * IMPACTS...Snow, gusty winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means that periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities...and use caution while driving. && $$
267 WWUS45 KBOU 240543 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver/Boulder CO 1143 PM MDT Thu Mar 23 2017 ...Strong storm to bring blizzard conditions to parts of northeastern Colorado... A spring storm will bring much needed precipitation to northeast and north central Colorado. Precipitation is expected to develop across the forecast area tonight and then intensify late tonight through Friday morning as the storm system strengthens over southeast Colorado. Moderate to heavy snowfall can be expected over the mountains, foothills, Palmer Ridge and some adjacent plains tonight into Friday morning, heaviest along and south of of the I-70 corridor. Very strong northerly winds will develop late tonight and continue through midday Friday across the plains. Blizzard conditions will be possible from the Palmer Divide east towards Limon and north across central and eastern Adams and Arapahoe Counties with zero visiblities at times. COZ033-035-240645- /O.CAN.KBOU.WW.Y.0015.170324T0600Z-170324T1800Z/ South and East Jackson/Larimer/North and Northeast Grand/ Northwest Boulder Counties Above 9000 Feet- Larimer and Boulder Counties Between 6000 and 9000 Feet- Including the cities of Cameron Pass, Laramie and Medicine Bow Mountains, Rabbit Ears Range, Rocky Mountain National Park, Willow Creek Pass, Estes Park, Glendevey, Nederland, and Red Feather Lakes 1143 PM MDT Thu Mar 23 2017 ...WINTER WEATHER ADVISORY IS CANCELLED... The National Weather Service in Denver has cancelled the Winter Weather Advisory. Light snow is expected overnight with the heavier snow further to the south, therefore the advisory has been cancelled. $$ COZ041-241345- /O.CON.KBOU.BZ.W.0001.170324T0600Z-170324T1800Z/ Elbert/Central and East Douglas Counties Above 6000 Feet- Including the cities of Castle Rock, Elbert, Fondis, Kiowa, and Larkspur 1143 PM MDT Thu Mar 23 2017 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT FRIDAY... * TIMING...Snow will increase in intensity after midnight, and continue through Friday morning. * SNOW ACCUMULATIONS...6 to 12 inches over the Palmer Ridge. Snowfall rates up to two inches per hour will be possible Friday morning. * WIND/VISIBILITY...Northerly winds are expected to increase to 30 to 40 mph with gusts to 55 mph over the Palmer Ridge late tonight through Friday morning. Visibilities will be near zero at times. * IMPACTS...Heavy snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ COZ045-046-241345- /O.CON.KBOU.BZ.W.0001.170324T0900Z-170324T1800Z/ Central and East Adams and Arapahoe Counties- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Including the cities of Bennett, Byers, Deer Trail, Leader, Agate, Hugo, Limon, and Matheson 1143 PM MDT Thu Mar 23 2017 ...BLIZZARD WARNING REMAINS IN EFFECT FROM 3 AM TO NOON MDT FRIDAY... * TIMING...Rain will change to snow late tonight and continue through midday Friday before decreasing in the afternoon. * SNOW ACCUMULATIONS...5 to 10 inches. * WIND/VISIBILITY...North winds will increase to 30 to 45 mph late tonight with gusts up to 55 mph at times through early Friday afternoon. Visibilities will be near zero at times. * IMPACTS...Heavy snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ COZ036-241345- /O.CON.KBOU.WS.W.0006.170324T0600Z-170324T1800Z/ Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- Including the cities of Bailey, Central City, Evergreen, Georgetown, Idaho Springs, and Westcreek 1143 PM MDT Thu Mar 23 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT FRIDAY... * TIMING...Snow will increase in intensity over the mountains and southern foothills after midnight and continue through Friday morning. The heaviest snowfall is likely from late tonight through Friday morning. * SNOW ACCUMULATIONS...6 to 10 inches over foothills along and south of Interstate 70. Snowfall rates around an inch per hour will be possible in the mountains and southern foothills early Friday morning. * WIND/VISIBILITY...Northerly winds from 15 to 25 mph with gusts to 35 mph are expected over the southern Foothills late tonight through Friday morning. Speeds will be much lighter in the mountains with gusts up to 20 mph at times. Visibilities could be under one quarter of a mile in the windiest areas. * IMPACTS...Heavy snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for heavy snow means severe winter weather conditions are expected or occurring. Significant amounts of snow are forecast that will make travel dangerous. Only travel in an emergency. If you must travel...keep an extra flashlight... food...and water in your vehicle in case of an emergency. && $$ COZ034-241345- /O.CON.KBOU.WW.Y.0015.170324T0900Z-170324T1800Z/ South and Southeast Grand/West Central and Southwest Boulder/ Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet- Including the cities of Berthoud Pass, Breckenridge, East Slopes Mosquito Range, East Slopes Southern Gore Range, Eisenhower Tunnel, Indian Peaks, Kenosha Mountains, Mount Evans, Williams Fork Mountains, and Winter Park 1143 PM MDT Thu Mar 23 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM TO NOON MDT FRIDAY... * TIMING...Snow will increase in intensity over the mountains overnight and continue through Friday morning. The heaviest snowfall is likely from late tonight through Friday morning. * SNOW ACCUMULATIONS...4 to 7 inches mainly over the eastern slopes along and south of the interstate 70 corridor. * WIND/VISIBILITY...Northerly winds from 15 to 25 mph with gusts to 35 mph are expected over the southern Foothills late tonight through Friday morning. Speeds will be much lighter in the mountains with gusts up to 20 mph at times. Visibilities could be under one quarter of a mile in the windiest areas. * IMPACTS...Snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for blowing snow means that visibilities will be limited due to strong winds blowing snow around. Use caution when traveling...especially in open areas. && $$ COZ039-040-049-241345- /O.CON.KBOU.WW.Y.0015.170324T0900Z-170324T1800Z/ 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-Washington County- Including the cities of Arvada, Boulder, Golden, Lakewood, Longmont, Aurora, Brighton, City of Denver, Denver International Airport, Highlands Ranch, Littleton, Parker, Akron, Cope, Last Chance, and Otis 1143 PM MDT Thu Mar 23 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM TO NOON MDT FRIDAY... * TIMING...Snow will increase in intensity over the northern mountains after midnight and continue into Friday morning. The heaviest snowfall is likely from late night through mid morning Friday. * SNOW ACCUMULATIONS...2 to 6 inches, heaviest south of Interstate 70. * WIND/VISIBILITY...North 20 to 35 mph with gusts to 45 mph. Visibilities could be under one quarter of a mile in heavier snow. * IMPACTS...Snow, gusty winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means that periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities...and use caution while driving. && $$
985 WWUS45 KBOU 240916 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver/Boulder CO 316 AM MDT Fri Mar 24 2017 ...Strong storm to bring blizzard conditions to parts of northeastern Colorado... Moderate to heavy snowfall can be expected over the mountains, foothills, Palmer Ridge and some adjacent plains through this morning, heaviest along and south of the I-70 corridor. Very strong northerly winds will continue through midday across the plains. Blizzard conditions will be possible from the Palmer Divide east towards Limon and north across eastern Arapahoe County with visibilities near zero at times. COZ041-241800- /O.CON.KBOU.BZ.W.0001.000000T0000Z-170324T1800Z/ Elbert/Central and East Douglas Counties Above 6000 Feet- Including the cities of Castle Rock, Elbert, Fondis, Kiowa, and Larkspur 316 AM MDT Fri Mar 24 2017 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY... * TIMING...Snow and strong winds will continue through the morning hours. * SNOW ACCUMULATIONS...5 to 10 inches over the Palmer Ridge. Snowfall rates of 1 to 2 inches will occur in the heavier bands of snow. * WIND/VISIBILITY...Northerly winds are expected to increase to 30 to 40 mph with gusts to 55 mph over the Palmer Ridge through this morning. Visibilities will be near zero at times. * IMPACTS...Moderate to heavy snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ COZ045-046-241800- /O.CON.KBOU.BZ.W.0001.000000T0000Z-170324T1800Z/ Central and East Adams and Arapahoe Counties- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Including the cities of Bennett, Byers, Deer Trail, Leader, Agate, Hugo, Limon, and Matheson 316 AM MDT Fri Mar 24 2017 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY... * TIMING...snow and strong winds will continue through the morning hours, with the snow expected to decrease towards noon. * SNOW ACCUMULATIONS...3 to 7 inches. * WIND/VISIBILITY...North winds 30 to 45 mph with gusts up to 55 mph at times through the afternoon. Visibilities will be near zero at times. * IMPACTS...Heavy snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ COZ036-241800- /O.CON.KBOU.WS.W.0006.000000T0000Z-170324T1800Z/ Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- Including the cities of Bailey, Central City, Evergreen, Georgetown, Idaho Springs, and Westcreek 316 AM MDT Fri Mar 24 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY... * TIMING...Snow will continue to spread into the southern front range foothills through the morning, then decrease toward midday. * SNOW ACCUMULATIONS...5 to 10 inches, heaviest south of Interstate 70. * WIND/VISIBILITY...Northerly winds from 15 to 25 mph with gusts to 35 mph are expected. Visibilities could be under one quarter of a mile in the windiest areas. * IMPACTS...Heavy snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Storm Warning for heavy snow means severe winter weather conditions are expected or occurring. Significant amounts of snow are forecast that will make travel dangerous. Only travel in an emergency. If you must travel...keep an extra flashlight... food...and water in your vehicle in case of an emergency. && $$ COZ034-241800- /O.CON.KBOU.WW.Y.0015.000000T0000Z-170324T1800Z/ South and Southeast Grand/West Central and Southwest Boulder/ Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet- Including the cities of Berthoud Pass, Breckenridge, East Slopes Mosquito Range, East Slopes Southern Gore Range, Eisenhower Tunnel, Indian Peaks, Kenosha Mountains, Mount Evans, Williams Fork Mountains, and Winter Park 316 AM MDT Fri Mar 24 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY... * TIMING...Snow will continue through the morning hours but will decrease towards midday. The heaviest snowfall will occur along east facing slopes. * SNOW ACCUMULATIONS...4 to 7 inches mainly over the eastern slopes along and south of the interstate 70 corridor. * WIND/VISIBILITY...Northerly winds from 15 to 25 mph with gusts to 35 mph are expected. * IMPACTS...Snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for blowing snow means that visibilities will be limited due to strong winds blowing snow around. Use caution when traveling...especially in open areas. && $$ COZ039-040-049-241800- /O.CON.KBOU.WW.Y.0015.000000T0000Z-170324T1800Z/ Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County-Washington County- Including the cities of Arvada, Boulder, Golden, Lakewood, Longmont, Aurora, Brighton, City of Denver, Denver International Airport, Highlands Ranch, Littleton, Parker, Akron, Cope, Last Chance, and Otis 316 AM MDT Fri Mar 24 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY... * TIMING...Bands of snow will continue to develop this morning and continue through mid morning. In and around the Denver area the heaviest snowfall will occur over southern portions of the metro area. from around Boulder north to Longmont lighter precipitation with a mix of rain and snow is expected. * SNOW ACCUMULATIONS...2 to 5 inches, mainly south of Interstate 70. Little if any snow accumulation is expected from around Boulder north to Longmont. * WIND/VISIBILITY...North 20 to 35 mph with gusts to 45 mph. Visibilities could be under one quarter of a mile in heavier snow. * IMPACTS...Snow, gusty winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means that periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities...and use caution while driving. && $$
508 WWUS45 KBOU 241223 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver/Boulder CO 623 AM MDT Fri Mar 24 2017 COZ036-241800- /O.CAN.KBOU.WS.W.0006.000000T0000Z-170324T1800Z/ /O.EXA.KBOU.WW.Y.0015.000000T0000Z-170324T1800Z/ Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- Including the cities of Bailey, Central City, Evergreen, Georgetown, Idaho Springs, and Westcreek 623 AM MDT Fri Mar 24 2017 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MDT TODAY... ...WINTER STORM WARNING IS CANCELLED... The National Weather Service in Denver has issued a Winter Weather Advisory for snow and blowing snow, which is in effect until noon MDT today. The Winter Storm Warning has been cancelled. * TIMING...light snow will continue through the mid morning hours then decrease toward noon. * SNOW ACCUMULATIONS...1 to 3 inches, mainly extreme southern jefferson and western douglas counties. * WIND/VISIBILITY...North 20 to 35 mph with gusts to 45 mph. Visibilities could be under one quarter of a mile in heavier snow. * IMPACTS...Snow, gusty winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for blowing snow means that visibilities will be limited due to strong winds blowing snow around. Use caution when traveling...especially in open areas. && $$ COZ034-039-241330- /O.CAN.KBOU.WW.Y.0015.000000T0000Z-170324T1800Z/ South and Southeast Grand/West Central and Southwest Boulder/ Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet- Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- Including the cities of Berthoud Pass, Breckenridge, East Slopes Mosquito Range, East Slopes Southern Gore Range, Eisenhower Tunnel, Indian Peaks, Kenosha Mountains, Mount Evans, Williams Fork Mountains, Winter Park, Arvada, Boulder, Golden, Lakewood, and Longmont 623 AM MDT Fri Mar 24 2017 ...WINTER WEATHER ADVISORY IS CANCELLED... The National Weather Service in Denver has cancelled the Winter Weather Advisory. The storm has shifted to the south and east with decreasing snowfall over the advisory area. heavy snowfall is no longer expected. $$ COZ041-241800- /O.CON.KBOU.BZ.W.0001.000000T0000Z-170324T1800Z/ Elbert/Central and East Douglas Counties Above 6000 Feet- Including the cities of Castle Rock, Elbert, Fondis, Kiowa, and Larkspur 623 AM MDT Fri Mar 24 2017 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY... * TIMING...Snow and strong winds will continue through the morning hours. * SNOW ACCUMULATIONS...5 to 10 inches over the Palmer Ridge. Snowfall rates of 1 to 2 inches will occur in the heavier bands of snow. * WIND/VISIBILITY...Northerly winds are expected to increase to 30 to 40 mph with gusts to 55 mph over the Palmer Ridge through this morning. Visibilities will be near zero at times. * IMPACTS...Moderate to heavy snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ COZ045-046-241800- /O.CON.KBOU.BZ.W.0001.000000T0000Z-170324T1800Z/ Central and East Adams and Arapahoe Counties- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Including the cities of Bennett, Byers, Deer Trail, Leader, Agate, Hugo, Limon, and Matheson 623 AM MDT Fri Mar 24 2017 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY... * TIMING...snow and strong winds will continue through the morning hours, with the snow expected to decrease towards noon. * SNOW ACCUMULATIONS...3 to 7 inches. * WIND/VISIBILITY...North winds 30 to 45 mph with gusts up to 55 mph at times through the afternoon. Visibilities will be near zero at times. * IMPACTS...Heavy snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ COZ040-049-241800- /O.CON.KBOU.WW.Y.0015.000000T0000Z-170324T1800Z/ North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County-Washington County- Including the cities of Aurora, Brighton, City of Denver, Denver International Airport, Highlands Ranch, Littleton, Parker, Akron, Cope, Last Chance, and Otis 623 AM MDT Fri Mar 24 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY... * TIMING...Bands of light snow will continue mid morning. In and around the Denver area the snow will be confined to extreme eastern and southern parts of the metro area. * SNOW ACCUMULATIONS...1 to 4 inches. * WIND/VISIBILITY...North 20 to 35 mph with gusts to 45 mph. Visibilities could be under one quarter of a mile in heavier snow. * IMPACTS...Snow, gusty winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means that periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities...and use caution while driving. && $$
812 WWUS45 KBOU 241404 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver/Boulder CO 804 AM MDT Fri Mar 24 2017 COZ040-241515- /O.CAN.KBOU.WW.Y.0015.000000T0000Z-170324T1800Z/ North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County- Including the cities of Aurora, Brighton, City of Denver, Denver International Airport, Highlands Ranch, Littleton, and Parker 804 AM MDT Fri Mar 24 2017 ...WINTER WEATHER ADVISORY IS CANCELLED... The National Weather Service in Denver has cancelled the Winter Weather Advisory. The heavier snow has shifted east and south of the Denver area with only some light snow showers still expected over far southern portions of Denver. Little or no additional accumulations are expected. $$ COZ041-241800- /O.CON.KBOU.BZ.W.0001.000000T0000Z-170324T1800Z/ Elbert/Central and East Douglas Counties Above 6000 Feet- Including the cities of Castle Rock, Elbert, Fondis, Kiowa, and Larkspur 804 AM MDT Fri Mar 24 2017 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY... * TIMING...Snow and strong winds will continue through the morning hours. * SNOW ACCUMULATIONS...5 to 10 inches over the Palmer Ridge. Snowfall rates up to 1 inch will occur in the heavier bands of snow. * WIND/VISIBILITY...Northerly winds are expected to increase to 30 to 40 mph with gusts to 55 mph over the Palmer Ridge through this morning. Visibilities will be near zero at times. * IMPACTS...Moderate to heavy snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ COZ045-046-241800- /O.CON.KBOU.BZ.W.0001.000000T0000Z-170324T1800Z/ Central and East Adams and Arapahoe Counties- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Including the cities of Bennett, Byers, Deer Trail, Leader, Agate, Hugo, Limon, and Matheson 804 AM MDT Fri Mar 24 2017 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY... * TIMING...snow and strong winds will continue through the morning hours, with the snow expected to decrease towards noon. * SNOW ACCUMULATIONS...3 to 7 inches. * WIND/VISIBILITY...North winds 30 to 45 mph with gusts up to 55 mph at times through the afternoon. Visibilities will be near zero at times. * IMPACTS...Heavy snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ COZ036-241800- /O.CON.KBOU.WW.Y.0015.000000T0000Z-170324T1800Z/ Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- Including the cities of Bailey, Central City, Evergreen, Georgetown, Idaho Springs, and Westcreek 804 AM MDT Fri Mar 24 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY... * TIMING...light snow will continue through the mid morning hours then decrease toward noon. * SNOW ACCUMULATIONS...1 to 3 inches, mainly extreme southern jefferson and western douglas counties. * WIND/VISIBILITY...North 20 to 35 mph with gusts to 45 mph. Visibilities could be under one quarter of a mile in heavier snow. * IMPACTS...Snow, gusty winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for blowing snow means that visibilities will be limited due to strong winds blowing snow around. Use caution when traveling...especially in open areas. && $$ COZ049-241800- /O.CON.KBOU.WW.Y.0015.000000T0000Z-170324T1800Z/ Washington County- Including the cities of Akron, Cope, Last Chance, and Otis 804 AM MDT Fri Mar 24 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY... * TIMING...Bands of light rain and snow will continue through late morning. The heavier snow will be across Southern and southwest portions of Washington counties. * SNOW ACCUMULATIONS...1 to 4 inches. * WIND/VISIBILITY...North 20 to 35 mph with gusts to 45 mph. Visibilities could be under one quarter of a mile in heavier snow. * IMPACTS...Snow, gusty winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means that periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities...and use caution while driving. && $$
975 WWUS45 KBOU 241442 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver/Boulder CO 842 AM MDT Fri Mar 24 2017 COZ036-241545- /O.CAN.KBOU.WW.Y.0015.000000T0000Z-170324T1800Z/ Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- Including the cities of Bailey, Central City, Evergreen, Georgetown, Idaho Springs, and Westcreek 842 AM MDT Fri Mar 24 2017 ...WINTER WEATHER ADVISORY IS CANCELLED... The National Weather Service in Denver has cancelled the Winter Weather Advisory. Snow will continue to diminish through mid morning. Little or no additional accumulation is expected. $$ COZ041-241800- /O.CON.KBOU.BZ.W.0001.000000T0000Z-170324T1800Z/ Elbert/Central and East Douglas Counties Above 6000 Feet- Including the cities of Castle Rock, Elbert, Fondis, Kiowa, and Larkspur 842 AM MDT Fri Mar 24 2017 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY... * TIMING...Snow and strong winds will decrease through the morning hours, especially over Douglas county. * SNOW ACCUMULATIONS...5 to 10 inches over the Palmer Ridge. Snowfall rates up to 1 inch will occur in the heavier bands of snow. * WIND/VISIBILITY...Northerly winds are expected to increase to 30 to 40 mph with gusts to 55 mph over the Palmer Ridge through this morning. Visibilities will be near zero at times. * IMPACTS...Moderate to heavy snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ COZ045-046-241800- /O.CON.KBOU.BZ.W.0001.000000T0000Z-170324T1800Z/ Central and East Adams and Arapahoe Counties- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Including the cities of Bennett, Byers, Deer Trail, Leader, Agate, Hugo, Limon, and Matheson 842 AM MDT Fri Mar 24 2017 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY... * TIMING...snow and strong winds will continue through the morning hours, with the snow expected to decrease towards noon. * SNOW ACCUMULATIONS...3 to 7 inches. * WIND/VISIBILITY...North winds 30 to 45 mph with gusts up to 55 mph at times through the afternoon. Visibilities will be near zero at times. * IMPACTS...Heavy snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ COZ049-241800- /O.CON.KBOU.WW.Y.0015.000000T0000Z-170324T1800Z/ Washington County- Including the cities of Akron, Cope, Last Chance, and Otis 842 AM MDT Fri Mar 24 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY... * TIMING...Bands of light rain and snow will continue through late morning. The heavier snow will be across Southern and southwest portions of Washington counties. * SNOW ACCUMULATIONS...1 to 4 inches. * WIND/VISIBILITY...North 20 to 35 mph with gusts to 45 mph. Visibilities could be under one quarter of a mile in heavier snow. * IMPACTS...Snow, gusty winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Winter Weather Advisory for snow means that periods of snow will cause primarily travel difficulties. Be prepared for snow covered roads and limited visibilities...and use caution while driving. && $$
649 WWUS45 KBOU 241612 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver/Boulder CO 1012 AM MDT Fri Mar 24 2017 COZ045-241715- /O.CAN.KBOU.BZ.W.0001.000000T0000Z-170324T1800Z/ Central and East Adams and Arapahoe Counties- Including the cities of Bennett, Byers, Deer Trail, and Leader 1012 AM MDT Fri Mar 24 2017 ...BLIZZARD WARNING IS CANCELLED... The National Weather Service in Denver has cancelled the Blizzard Warning. Snow will continue to change to rain through late morning as visibilities have improved, so the blizzard warning will be cancelled. $$ COZ049-241715- /O.CAN.KBOU.WW.Y.0015.000000T0000Z-170324T1800Z/ Washington County- Including the cities of Akron, Cope, Last Chance, and Otis 1012 AM MDT Fri Mar 24 2017 ...WINTER WEATHER ADVISORY IS CANCELLED... The National Weather Service in Denver has cancelled the Winter Weather Advisory. No additional snowfall is expected as much of the precipitation has changed to rain. $$ COZ041-241800- /O.CON.KBOU.BZ.W.0001.000000T0000Z-170324T1800Z/ Elbert/Central and East Douglas Counties Above 6000 Feet- Including the cities of Castle Rock, Elbert, Fondis, Kiowa, and Larkspur 1012 AM MDT Fri Mar 24 2017 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY... * TIMING...Snow and strong winds will decrease through the morning hours, especially over Douglas county. * SNOW ACCUMULATIONS...5 to 10 inches over the Palmer Ridge. Snowfall rates up to 1 inch will occur in the heavier bands of snow. * WIND/VISIBILITY...Northerly winds are expected to increase to 30 to 40 mph with gusts to 55 mph over the Palmer Ridge through this morning. Visibilities will be near zero at times. * IMPACTS...Moderate to heavy snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ COZ046-241800- /O.CON.KBOU.BZ.W.0001.000000T0000Z-170324T1800Z/ North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Including the cities of Agate, Hugo, Limon, and Matheson 1012 AM MDT Fri Mar 24 2017 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL NOON MDT TODAY... * TIMING...snow and strong winds will continue through the morning hours, with the snow expected to decrease towards noon. * SNOW ACCUMULATIONS...3 to 7 inches. * WIND/VISIBILITY...North winds 25 to 35 mph with gusts up to 45 mph at times through the afternoon. Visibilities will be near zero at times until noon. * IMPACTS...Heavy snow, strong winds and poor visibilities will create hazardous winter driving conditions. Roads will be icy and snow packed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$
169 WWUS45 KBOU 241801 WSWBOU URGENT - WINTER WEATHER MESSAGE National Weather Service Denver/Boulder CO 1201 PM MDT Fri Mar 24 2017 COZ041-046-241915- /O.EXP.KBOU.BZ.W.0001.000000T0000Z-170324T1800Z/ Elbert/Central and East Douglas Counties Above 6000 Feet- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Including the cities of Castle Rock, Elbert, Fondis, Kiowa, Larkspur, Agate, Hugo, Limon, and Matheson 1201 PM MDT Fri Mar 24 2017 ...BLIZZARD WARNING HAS EXPIRED... Rain and snow showers will decrease through the afternoon while visibilities have improved over Elbert and Lincoln counties. Therefore, the blizzard warning will be allowed to expire. Any additional snowfall will be under an inch. $$
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 23, 5:00 AM MDT | Blizzard Watch | BOU | Adams, Arapahoe, Douglas, Elbert, Lincoln | 10 hr |
| Mar 23, 5:00 AM MDT | Winter Weather Advisory | BOU | Adams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 9 more | 29 hr |
| Mar 23, 3:28 PM MDT | Winter Storm Warning | BOU | Clear Creek, Douglas, Gilpin, Jefferson, Park | 15 hr |
| Mar 23, 3:38 PM MDT | High Wind Warning | BOU | Elbert, Lincoln | 20 hr |
Nearby
Blizzard Warnings in Colorado, 2017Every blizzard warning in 2017
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.