Alert archive / Colorado / High Wind Warnings in 2016

High Wind Warning 4, NWS Denver/Boulder, CO

October 16, 20169 counties in Colorado

NWS Denver/Boulder, CO issued this high wind warning at Oct 16, 2016, 2:50 PM MDT for 9 counties in Colorado. It took effect at Oct 17, 2016, 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 16, 2016, 2:50 PM MDT (20:50 UTC)
In effect from
Oct 17, 2016, 12:00 AM MDT
Expired
Oct 17, 2016, 2:34 PM MDT
In force
15 hr
Issued by
NWS Denver/Boulder, CO

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

The radar

The Denver radar (KFTG), 102 km from the middle of the area, began a volume at 20:52 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 17, 5:00 AM MDTNON-TSTM WND GST 70Berthoud Pass, CO
Oct 17, 6:00 AM MDTNON-TSTM WND GST 73Berthoud Pass, CO
Oct 17, 6:00 AM MDTNON-TSTM WND GST 809 E Dillon, CO
Oct 17, 10:00 AM MDTNON-TSTM WND GST 78Berthoud Pass, CO
Oct 17, 1:58 PM MDTNON-TSTM WND GST 72Berthoud Pass, 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, 8.8 hours before the alert went out and 213 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 2016-10-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2016-10-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 122 square meters per square second.1939587897Sfc1 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
3622 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
122 m²/s²
0-3 km storm-relative helicity
174 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

791 
WWUS75 KBOU 162050
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
250 PM MDT SUN OCT 16 2016

...STRONG WINDS EXPECTED IN THE MOUNTAINS TONIGHT AND MONDAY...

.A POWERFUL PACIFIC JET STREAM MOVING ACROSS THE CENTRAL ROCKIES
WILL BRING STRONG WINDS TO THE COLORADO MOUNTAINS. THE WINDS ARE
EXPECTED TO STRENGTHEN LATE THIS EVENING AND THEN CONTINUE
INTO MONDAY AFTERNOON. THE STRONGEST WINDS WITH GUSTS IN EXCESS
OF 80 MPH WILL BE POSSIBLE OVER THE HIGHER PEAKS OF THE FRONT
RANGE MOUNTAINS FROM THE MEDICINE BOW RANGE SOUTHWARD THROUGH
ROCKY MOUNTAIN NATIONAL PARK...BERTHOUD PASS...AND INTO SUMMIT
COUNTY.

COZ033-034-170500-
/O.UPG.KBOU.HW.A.0004.161017T0000Z-161018T0600Z/
/O.NEW.KBOU.HW.W.0004.161017T0600Z-161017T2200Z/
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-
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
250 PM MDT SUN OCT 16 2016

...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 4 PM MDT
MONDAY...

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 4 PM MDT
MONDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. 

* TIMING...WINDS ARE EXPECTED TO INCREASE TONIGHT AND CONTINUE
  THROUGH MONDAY. THE STRONGER GUSTS WILL GRADUALLY DECREASE BY
  LATE AFTERNOON.

* WINDS...WEST 25 TO 45 MPH WITH GUSTS IN EXCESS OF 80 MPH...
  STRONGEST ABOVE TIMBERLINE.

* IMPACTS...STRONG GUSTY WINDS OVER HIGHER MOUNTAIN PASSES WILL 
  CREATE DIFFICULT TRAVEL CONDITIONS FOR DRIVERS OF HIGH PROFILE 
  VEHICLES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$
4 follow-up statements
232 
WWUS75 KBOU 170327
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
927 PM MDT SUN OCT 16 2016

...STRONG WINDS EXPECTED IN THE MOUNTAINS TONIGHT AND MONDAY...

.A POWERFUL PACIFIC JET STREAM MOVING ACROSS THE CENTRAL ROCKIES
WILL BRING STRONG WINDS TO THE COLORADO MOUNTAINS. THE WINDS ARE
EXPECTED TO STRENGTHEN LATER THIS EVENING AND THEN CONTINUE INTO
MONDAY AFTERNOON. THE STRONGEST WINDS WITH GUSTS IN EXCESS OF
80 MPH WILL BE POSSIBLE OVER THE HIGHER PEAKS OF THE FRONT RANGE
MOUNTAINS FROM THE MEDICINE BOW RANGE SOUTHWARD THROUGH ROCKY
MOUNTAIN NATIONAL PARK...BERTHOUD PASS...AND INTO SUMMIT COUNTY.

COZ033-034-171230-
/O.CON.KBOU.HW.W.0004.161017T0600Z-161017T2200Z/
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-
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
927 PM MDT SUN OCT 16 2016

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 PM MDT MONDAY...

* TIMING...WINDS ARE EXPECTED TO INCREASE TONIGHT AND CONTINUE 
  THROUGH MONDAY. THE STRONGER GUSTS WILL GRADUALLY DECREASE BY 
  LATE AFTERNOON. 

* WINDS...WEST 25 TO 45 MPH WITH GUSTS IN EXCESS OF 80 MPH... 
  STRONGEST ABOVE TIMBERLINE. 

* IMPACTS...STRONG GUSTY WINDS OVER HIGHER MOUNTAIN PASSES WILL 
  CREATE DIFFICULT TRAVEL CONDITIONS FOR DRIVERS OF HIGH PROFILE 
  VEHICLES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$
670 
WWUS75 KBOU 171031
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
431 AM MDT MON OCT 17 2016

...STRONG WINDS EXPECTED IN THE MOUNTAINS TODDAY...

.A POWERFUL PACIFIC JET STREAM MOVING ACROSS THE CENTRAL ROCKIES
WILL BRING STRONG WINDS TO THE COLORADO MOUNTAINS. THE WINDS ARE
EXPECTED TO STRENGTHEN THIS MORNING AND THEN CONTINUE INTO THE AFTERNOON.
THE STRONGEST WINDS WITH GUSTS IN EXCESS OF 80 MPH WILL BE
POSSIBLE OVER THE HIGHER PEAKS OF THE FRONT RANGE MOUNTAINS FROM
THE MEDICINE BOW RANGE SOUTHWARD THROUGH ROCKY MOUNTAIN NATIONAL
PARK...BERTHOUD PASS...AND INTO SUMMIT COUNTY.

COZ033-034-171845-
/O.CON.KBOU.HW.W.0004.000000T0000Z-161017T2200Z/
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-
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
431 AM MDT MON OCT 17 2016

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

* TIMING...WINDS ARE EXPECTED TO INCREASE THIS MORNING AND
  CONTINUE THROUGH THIS AFTERNOON. THE STRONGER GUSTS WILL
  GRADUALLY DECREASE BY LATE AFTERNOON.

* WINDS...WEST 25 TO 45 MPH WITH GUSTS IN EXCESS OF 80 MPH... 
  STRONGEST ABOVE TIMBERLINE. 

* IMPACTS...STRONG GUSTY WINDS OVER HIGHER MOUNTAIN PASSES WILL 
  CREATE DIFFICULT TRAVEL CONDITIONS FOR DRIVERS OF HIGH PROFILE 
  VEHICLES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$
385 
WWUS75 KBOU 171805
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
1205 PM MDT MON OCT 17 2016


COZ033-034-172200-
/O.CON.KBOU.HW.W.0004.000000T0000Z-161017T2200Z/
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-
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
1205 PM MDT MON OCT 17 2016

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

* TIMING...STRONG WINDS ARE EXPECTED TO CONTINUE THROUGH 4 PM THIS
  AFTERNOON...THEN GRADUALLY DECREASE.

* WINDS...WEST 25 TO 40 MPH WITH GUSTS IN EXCESS OF 75 MPH...
  STRONGEST ABOVE TIMBERLINE.

* IMPACTS...STRONG GUSTY WINDS OVER HIGHER MOUNTAIN PASSES WILL 
  CREATE DIFFICULT TRAVEL CONDITIONS FOR DRIVERS OF HIGH PROFILE 
  VEHICLES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. CONTINUE TO MONITOR THE LATEST FORECASTS.

&&

$$
223 
WWUS75 KBOU 172034
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
234 PM MDT MON OCT 17 2016


COZ033-034-172145-
/O.CAN.KBOU.HW.W.0004.000000T0000Z-161017T2200Z/
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-
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
234 PM MDT MON OCT 17 2016

...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE HIGH
WIND WARNING. 

ALTHOUGH GUSTY WINDS ARE EXPECTED TO CONTINUE THROUGH THE REST OF
THE AFTERNOON...THEY ARE NO LONGER EXPECTED TO REACH HIGH WIND
CRITERIA. THEREFORE THE HIGH WIND WARNING HAS BEEN CANCELLED.

WEST TO NORTHWEST WINDS 20 TO 35 MPH CAN BE EXPECTED FOR THE
REMAINDER OF THE AFTERNOON WITH SOME GUSTS TO 60 MPH OVER THE
MORE EXPOSED AREAS.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 16, 2:51 PM MDTRed Flag WarningBOUAdams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 15 more28 hr

Nearby

High Wind Warnings in Colorado, 2016Every high wind warning in 2016

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.