Alert archive / Colorado / High Wind Warnings in 2015
High Wind Warning 5, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this high wind warning at Dec 17, 2015, 4:01 PM MST for 12 counties in Colorado. It took effect at Dec 17, 2015, 8:00 PM MST. It was in force for 15 hr. 1 report 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
- Dec 17, 2015, 4:01 PM MST (23:01 UTC)
- In effect from
- Dec 17, 2015, 8:00 PM MST
- Expired
- Dec 18, 2015, 10:52 AM MST
- In force
- 15 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Boulder County, CO, Broomfield County, CO, Clear Creek County, CO, Douglas County, CO, Gilpin County, CO, Grand County, CO, Jackson County, CO, Jefferson County, CO, Larimer County, CO, Park County, CO, Summit County, CO, Weld County, CO
The radar
The Denver radar (KFTG), 82 km from the middle of the area, began a volume at 23:03 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 |
|---|---|---|---|
| Dec 17, 10:19 PM MST | NON-TSTM WND GST 86 | 3 Se Pinecliffe, CO | GROUND BLIZZARDS AND WHITE OUT CONDITIONS |
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, 11.0 hours before the alert went out and 193 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
- 2056 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 94 m²/s²
- 0-3 km storm-relative helicity
- 131 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
166 WWUS75 KBOU 172301 NPWBOU URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 401 PM MST THU DEC 17 2015 ...HIGH WINDS EXPECTED TONIGHT IN AND NEAR THE FRONT RANGE... .A STRONG JET STREAM WILL PUSH OVER COLORADO TONIGHT...FORMING A MOUNTAIN WAVE THAT WILL HELP STRONG WINDS ALOFT SURFACE OVER THE FRONT RANGE MOUNTAINS AND FOOTHILLS. THE STRONG WINDS ARE MOST LIKELY AT ELEVATIONS ABOVE 8000 FEET AND IN WIND PRONE LOWER FOOTHILLS LOCATIONS SUCH AS THE AREAS JUST WEST OF BOULDER AND GOLDEN AND CARTER LAKE AS WELL AS AREAS NEAR THE WYOMING BORDER. HIGHER AREAS WILL LIKELY SEE WINDS GUSTS AS HIGH AS 80 MPH...WHILE AREAS NEAR THE BASE OF THE FOOTHILLS WILL LIKELY SEE GUSTS IN THE 60 TO 75 MPH RANGE. THE IMPACT OF THESE WINDS WILL BE GREATER DUE TO THE RECENT SNOWFALL. SIGNIFICANT BLOWING AND DRIFTING SNOW IS EXPECTED IN OPEN AREAS...AND BLIZZARD CONDITIONS ARE POSSIBLE IN THE WINDIEST AREAS. HIGHWAYS MOST LIKELY TO BE IMPACTED INCLUDE LOVELAND AND BERTHOUD PASSES...THE PEAK-TO-PEAK HIGHWAY BETWEEN BLACK HAWK AND ESTES PARK...HIGHWAY 93 BETWEEN GOLDEN AND BOULDER...HIGHWAY 287 BETWEEN FORT COLLINS AND LARAMIE...INTERSTATE 25 BETWEEN WELLINGTON AND CHEYENNE...AND HIGHWAY 285 IN SOUTH PARK. ROAD CLOSURES MAY BE POSSIBLE IN SOME OF THESE LOCATIONS DUE TO POOR VISIBILITIES AND DRIFTING SNOW. TRAVELERS SHOULD ALSO NOTE THAT CONDITIONS WILL BE JUST AS BAD OR WORSE IN THE AREA BETWEEN CHEYENNE AND RAWLINS. THERE IS ALREADY SOME WIND IN MANY OF THESE AREAS...WITH GUSTS TO 54 MPH AT BERTHOUD PASS AND IN THE 30 TO 40 MPH RANGE IN THE HIGHER FOOTHILLS AND THE LARAMIE AREA THIS AFTERNOON. WINDS WILL STEADILY INCREASE THIS EVENING...THEN A BURST OF MUCH STRONGER WINDS IS EXPECTED IN THE EARLY MORNING HOURS. DRIVERS SHOULD CONSIDER MAKING ALTERNATE PLANS TO AVOID THE WORST AREAS LATER TONIGHT AND FRIDAY MORNING. COZ033>036-038-039-180715- /O.NEW.KBOU.HW.W.0005.151218T0300Z-151218T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET-LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS... BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE... EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL... INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS... WILLIAMS FORK MOUNTAINS...WINTER PARK...ESTES PARK...GLENDEVEY... NEDERLAND...RED FEATHER LAKES...BAILEY...CENTRAL CITY... EVERGREEN...GEORGETOWN...IDAHO SPRINGS...WESTCREEK... FORT COLLINS...HEREFORD...LOVELAND...NUNN...ARVADA...BOULDER... GOLDEN...LAKEWOOD...LONGMONT 401 PM MST THU DEC 17 2015 ...HIGH WIND WARNING IN EFFECT FROM 8 PM THIS EVENING TO 11 AM MST FRIDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM 8 PM THIS EVENING TO 11 AM MST FRIDAY. * TIMING...WINDS WILL INCREASE THIS EVENING...THEN A PERIOD OF VERY STRONG WINDS IS LIKELY LATE TONIGHT AND EARLY FRIDAY MORNING. * WINDS...WEST WINDS INCREASING TO 30 TO 50 MPH THIS EVENING. GUSTS TO 80 MPH OVER THE MOUNTAINS AND WINDIER FOOTHILLS LOCATIONS...WITH GUSTS OF 60 TO 75 MPH IN AREAS NEAR THE BASE OF THE FOOTHILLS AND NEAR THE WYOMING BORDER. * IMPACTS...EXTENSIVE BLOWING SNOW IN OPEN AREAS MAY CAUSE BLIZZARD CONDITIONS AT TIMES. ROAD CLOSURES ARE POSSIBLE. WINDS MAY CAUSE DAMAGE TO TREES AND LESS SECURE PORTIONS OF BUILDINGS. POWER OUTAGES ARE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY. RESIDENTS SHOULD MOVE TRASH CANS...PATIO FURNITURE...AND ANY OTHER ITEMS EASILY TOSSED ABOUT BY HIGH WINDS INDOORS. MOTORISTS TRAVELING IN HIGH PROFILE VEHICLES SHOULD CONSIDER DELAYING TRAVEL UNTIL THE WINDS SUBSIDE. && $$ GIMMESTAD
3 follow-up statements
317 WWUS75 KBOU 180450 NPWBOU URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 950 PM MST THU DEC 17 2015 ...HIGH WINDS EXPECTED TONIGHT IN AND NEAR THE FRONT RANGE... .A STRONG JET STREAM WILL PUSH OVER COLORADO TONIGHT...FORMING A MOUNTAIN WAVE THAT WILL HELP STRONG WINDS ALOFT SURFACE OVER THE FRONT RANGE MOUNTAINS AND FOOTHILLS. THE STRONG WINDS ARE MOST LIKELY AT ELEVATIONS ABOVE 8000 FEET AND IN WIND PRONE LOWER FOOTHILLS LOCATIONS SUCH AS THE AREAS JUST WEST OF BOULDER AND GOLDEN AND CARTER LAKE AS WELL AS AREAS NEAR THE WYOMING BORDER. HIGHER AREAS WILL LIKELY SEE WINDS GUSTS AS HIGH AS 80 MPH... WHILE AREAS NEAR THE BASE OF THE FOOTHILLS WILL LIKELY SEE GUSTS IN THE 60 TO 75 MPH RANGE. THE IMPACT OF THESE WINDS WILL BE GREATER DUE TO THE RECENT SNOWFALL. SIGNIFICANT BLOWING AND DRIFTING SNOW IS EXPECTED IN OPEN AREAS...AND BLIZZARD CONDITIONS ARE POSSIBLE IN THE WINDIEST AREAS. HIGHWAYS MOST LIKELY TO BE IMPACTED INCLUDE LOVELAND AND BERTHOUD PASSES...THE PEAK-TO-PEAK HIGHWAY BETWEEN BLACK HAWK AND ESTES PARK...HIGHWAY 93 BETWEEN GOLDEN AND BOULDER...HIGHWAY 287 BETWEEN FORT COLLINS AND LARAMIE...INTERSTATE 25 BETWEEN WELLINGTON AND CHEYENNE...AND HIGHWAY 285 IN SOUTH PARK. ROAD CLOSURES MAY BE POSSIBLE IN SOME OF THESE LOCATIONS DUE TO POOR VISIBILITIES AND DRIFTING SNOW. TRAVELERS SHOULD ALSO NOTE THAT CONDITIONS WILL BE JUST AS BAD OR WORSE IN THE AREA BETWEEN CHEYENNE AND RAWLINS WYOMING AND MANY ROADS ARE CLOSED IN THAT AREA. THERE IS ALREADY SOME WIND IN MANY OF THESE AREAS...WITH GUSTS TO 61 MPH AT BERTHOUD PASS AND IN THE 30 TO 50 MPH RANGE IN THE HIGHER FOOTHILLS AND THE LARAMIE AREA THIS EVENING. THE WINDS WERE ALSO STARTING TO REACH THE SURFACE AROUND ROCKY FLATS AND BOULDER. WINDS WILL INCREASE SOME MORE INTO THE EARLY MORNING HOURS...WITH A FEW HOURS OF MUCH STRONGER WINDS POSSIBLE LATE TONIGHT. DRIVERS SHOULD CONSIDER MAKING ALTERNATE PLANS TO AVOID THE WORST AREAS LATER TONIGHT AND FRIDAY MORNING. COZ033>036-038-039-181300- /O.CON.KBOU.HW.W.0005.000000T0000Z-151218T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET-LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS... BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE... EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL... INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS... WILLIAMS FORK MOUNTAINS...WINTER PARK...ESTES PARK...GLENDEVEY... NEDERLAND...RED FEATHER LAKES...BAILEY...CENTRAL CITY... EVERGREEN...GEORGETOWN...IDAHO SPRINGS...WESTCREEK... FORT COLLINS...HEREFORD...LOVELAND...NUNN...ARVADA...BOULDER... GOLDEN...LAKEWOOD...LONGMONT 950 PM MST THU DEC 17 2015 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST FRIDAY... * TIMING...WINDS WILL BECOME MORE WIDESPREAD AND INCREASE INTO THE EARLY MORNING HOURS. A PERIOD OF VERY STRONG WINDS IS LIKELY LATE TONIGHT AND EARLY FRIDAY MORNING. * WINDS...WEST WINDS AT 30 TO 50 MPH. GUSTS TO 80 MPH OVER THE MOUNTAINS AND WINDIER FOOTHILLS LOCATIONS...WITH GUSTS OF 60 TO 75 MPH IN AREAS NEAR THE BASE OF THE FOOTHILLS AND NEAR THE WYOMING BORDER. * IMPACTS...EXTENSIVE BLOWING SNOW IN OPEN AREAS MAY CAUSE BLIZZARD CONDITIONS AT TIMES. ROAD CLOSURES ARE POSSIBLE. WINDS MAY CAUSE DAMAGE TO TREES AND LESS SECURE PORTIONS OF BUILDINGS. POWER OUTAGES ARE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY. RESIDENTS SHOULD MOVE TRASH CANS...PATIO FURNITURE...AND ANY OTHER ITEMS EASILY TOSSED ABOUT BY HIGH WINDS INDOORS. MOTORISTS TRAVELING IN HIGH PROFILE VEHICLES SHOULD CONSIDER DELAYING TRAVEL UNTIL THE WINDS SUBSIDE. && $$ GIMMESTAD
801 WWUS75 KBOU 181208 NPWBOU URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 508 AM MST FRI DEC 18 2015 ...HIGH WINDS THREAT CONTINUES FOR THE FRONT RANGE MOUNTAINS AND FOOTHILLS...NOT SO FOR THE NEARBY PLAINS... COZ038-039-181315- /O.CAN.KBOU.HW.W.0005.000000T0000Z-151218T1800Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- INCLUDING THE CITIES OF...FORT COLLINS...HEREFORD...LOVELAND... NUNN...ARVADA...BOULDER...GOLDEN...LAKEWOOD...LONGMONT 508 AM MST FRI DEC 18 2015 ...HIGH WIND WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE HIGH WIND WARNING. HIGH WINDS ARE NO LONGER ANTICIPATED ALONG THE BASE OF THE FRONT RANGE FOOTHILLS. HOWEVER WEST WINDS MAY STILL GUST 30 TO 45 MPH TIMES IN AREAS PRONE TO HIGH WINDS THROUGH MID-MORNING. THESE AREAS INCLUDE HIGHWAY 93 BETWEEN GOLDEN AND BOULDER...U.S. HIGHWAY 36 FROM BOULDER TO LYONS AND U.S. HIGHWAY 287 FROM FORT COLLINS TO THE WYOMING BORDER. THE GUSTY WINDS COULD PRODUCE BLOWING SNOW THAT COULD REDUCE VISIBILITIES AND CREATE ICY ROAD SURFACES. $$ COZ033>036-181800- /O.CON.KBOU.HW.W.0005.000000T0000Z-151218T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET-LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS... BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE... EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL... INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS... WILLIAMS FORK MOUNTAINS...WINTER PARK...ESTES PARK...GLENDEVEY... NEDERLAND...RED FEATHER LAKES...BAILEY...CENTRAL CITY... EVERGREEN...GEORGETOWN...IDAHO SPRINGS...WESTCREEK 508 AM MST FRI DEC 18 2015 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * TIMING...VERY STRONG AND GUSTY WEST WINDS ARE STILL LIKELY THROUGH MID-MORNING TODAY. * WINDS...SUSTAINED WEST WINDS OF 30 TO 50 MPH AND PEAK GUSTS TO 75 MPH ARE LIKELY. * IMPACTS...STRONG WINDS MAY PRODUCE GROUND BLIZZARD CONDITIONS IN OPEN AREAS. BLOWING AND DRIFTING SNOW COULD CAUSE BRIEF ROAD CLOSURES DUE TO SEVERELY REDUCED VISIBILITIES AND ICY ROAD SURFACES. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY. RESIDENTS SHOULD MOVE TRASH CANS...PATIO FURNITURE...AND ANY OTHER ITEMS EASILY TOSSED ABOUT BY HIGH WINDS INDOORS. MOTORISTS TRAVELING IN HIGH PROFILE VEHICLES SHOULD CONSIDER DELAYING TRAVEL UNTIL THE WINDS SUBSIDE LATER TODAY. && $$ BAKER
247 WWUS75 KBOU 181752 NPWBOU URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 1052 AM MST FRI DEC 18 2015 COZ033>036-181900- /O.CAN.KBOU.HW.W.0005.000000T0000Z-151218T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET-LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET- JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS... BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE... EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL... INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS... WILLIAMS FORK MOUNTAINS...WINTER PARK...ESTES PARK...GLENDEVEY... NEDERLAND...RED FEATHER LAKES...BAILEY...CENTRAL CITY... EVERGREEN...GEORGETOWN...IDAHO SPRINGS...WESTCREEK 1052 AM MST FRI DEC 18 2015 ...HIGH WIND WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE HIGH WIND WARNING. WINDS OVER THE MOUNTAINS AND FOOTHILLS HAVE BEEN GRADUALLY DECREASING AS AN UPPER LEVEL RIDGE BUILDS OVER THE STATE AND PRESSURE GRADIENTS BEGIN RELAXING. SOME GUSTY WINDS OF 40 TO 50 MPH WILL STILL BE POSSIBLE OVER MOUNTAIN RIDGES...BUT HAZARDOUS CONDITONS ARE NO LONGER EXPECTED. $$
Nearby
High Wind Warnings in Colorado, 2015Every high wind warning in 2015
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.