Alert archive / Colorado / High Wind Watches in 2011
High Wind Watch 10, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this high wind watch at Dec 29, 2011, 3:03 PM MST for 22 counties in Colorado. It took effect at Dec 31, 2011, 12:00 AM MST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Dec 29, 2011, 3:03 PM MST (22:03 UTC)
- In effect from
- Dec 31, 2011, 12:00 AM MST
- Expired
- Dec 30, 2011, 10:15 AM MST
- In force
- Issued by
- NWS Denver/Boulder, CO
All 22 counties
Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Clear Creek County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Gilpin County, CO, Grand County, CO, Jackson County, CO, Jefferson County, CO, Larimer County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Park County, CO, Phillips County, CO, Sedgwick County, CO, Summit County, CO, Washington County, CO, Weld County, CO
The radar
The Denver radar (KFTG), 21 km from the middle of the area, began a volume at 22:00 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.
The nearest sounding before it
Denver, CO (KDNR), launched 12:00Z, 10.1 hours before the alert went out and 120 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
- 2371 m above ground
- 0-6 km bulk shear
- 65 kt
- 0-1 km storm-relative helicity
- 186 m²/s²
- 0-3 km storm-relative helicity
- 421 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
551 WWUS75 KBOU 292203 NPWBOU URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 303 PM MST THU DEC 29 2011 ...HIGH WINDS WILL EASE THIS EVENING BUT ANOTHER ROUND OF STRONG WINDS EXPECTED LATE FRIDAY NIGHT AND SATURDAY... .STRONG WINDS WILL GRADUALLY DECREASE BY OR SHORTLY AFTER SUNSET THIS EVENING AS ONE UPPER LEVEL DISTURBANCE MOVES EAST INTO THE CENTRAL PLAINS. THE WINDS WILL CONTINUE TO DECREASE THROUGH THE NIGHT AND REMAIN RELATIVELY LIGHT THROUGH FRIDAY EVENING. HOWEVER...THE NEXT FAST MOVING WEATHER DISTURBANCE WILL BRING MORE STRONG WINDS BY FRIDAY NIGHT INTO SATURDAY. THE STRONGER WINDS ARE FIRST EXPECTED TO DEVELOP IN THE FRONT RANGE MOUNTAINS AND FOOTHILLS AFTER MIDNIGHT FRIDAY NIGHT...AND THEN SPREAD ACROSS THE PLAINS SATURDAY WITH THE PASSAGE OF THE UPPER LEVEL DISTURBANCE. COZ042-048-050-051-300615- /O.NEW.KBOU.HW.A.0010.111231T1600Z-120101T0000Z/ /O.CON.KBOU.HW.W.0010.000000T0000Z-111230T0000Z/ NORTHEAST WELD COUNTY-LOGAN COUNTY-SEDGWICK COUNTY- PHILLIPS COUNTY- INCLUDING THE CITIES OF...BRIGGSDALE...GROVER...PAWNEE BUTTES... RAYMER...STONEHAM...CROOK...MERINO...STERLING...PEETZ... JULESBURG...OVID...SEDGWICK...AMHERST...HAXTUN...HOLYOKE 303 PM MST THU DEC 29 2011 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... ...HIGH WIND WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A HIGH WIND WATCH...WHICH IS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY AFTERNOON. A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * TIMING...STRONG WINDS WILL CONTINUE THROUGH SUNDOWN AND THEN GRADUALLY DECREASE THIS EVENING. STRONG WINDS ARE EXPECTED TO REDEVELOP LATE SATURDAY MORNING AND CONTINUE THROUGH SATURDAY AFTERNOON. * WINDS...WEST TO NORTHWEST AT 30 TO 45 MPH WITH GUSTS AROUND 65 MPH. * IMPACTS...TRAVEL ACROSS NORTHEAST WELD...LOGAN...SEDGWICK AND PHILLIPS COUNTIES WILL BE DIFFICULT DUE TO THE STRONG WINDS. AREAS OF BLOWING DUST WILL REDUCE VISIBILITIES TO BELOW A MILE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... DRIVERS SHOULD BE ALERT TO RAPIDLY CHANGING VISIBILITIES IN BLOWING DUST. HIGH PROFILE AND LIGHTWEIGHT VEHICLES WILL BE PARTICULARLY SUSCEPTIBLE TO THE HIGH WINDS. && $$ COZ033>036-300615- /O.NEW.KBOU.HW.A.0010.111231T0700Z-120101T0000Z/ /O.CON.KBOU.HW.W.0010.000000T0000Z-111230T0000Z/ 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 303 PM MST THU DEC 29 2011 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... ...HIGH WIND WATCH IN EFFECT FROM LATE FRIDAY NIGHT THROUGH SATURDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A HIGH WIND WATCH...WHICH IS IN EFFECT FROM LATE FRIDAY NIGHT THROUGH SATURDAY AFTERNOON. A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * TIMING...STRONG WINDS WILL CONTINUE THROUGH SUNDOWN AND THEN GRADUALLY DECREASE THIS EVENING. STRONG WINDS ARE EXPECTED TO REDEVELOP LATE FRIDAY NIGHT AND THEN CONTINUE THROUGH SATURDAY AFTERNOON. * WINDS...WEST WINDS OF 30 TO 45 MPH WILL GUST ABOVE 75 MPH. * IMPACTS...PEOPLE PLANNING TRAVEL IN THE FRONT RANGE FOOTHILLS AND OVER THE HIGHER MOUNTAIN PASSES SHOULD BE PREPARED FOR STRONG AND SUDDEN WIND GUSTS. DRIVERS OF LIGHTWEIGHT OR HIGH PROFILE VEHICLES SHOULD AVOID TRAVEL ON NORTH TO SOUTH ROADS SUCH AS THE PEAK TO PEAK HIGHWAY BETWEEN ESTES PARK AND BLACKHAWK...AND HIGHWAY 287 BETWEEN FORT COLLINS AND LARAMIE WYOMING. INTERSTATE 70 FROM GEORGETOWN TO THE EISENHOWER TUNNEL WILL ALSO BE PRONE TO THE HIGH WINDS. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY. && $$ COZ038-039-300615- /O.NEW.KBOU.HW.A.0010.111231T1600Z-120101T0000Z/ 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 303 PM MST THU DEC 29 2011 ...HIGH WIND WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A HIGH WIND WATCH...WHICH IS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY AFTERNOON. * TIMING...STRONG WINDS ARE EXPECTED TO REDEVELOP SATURDAY MORNING AND CONTINUE THROUGH SATURDAY AFTERNOON. * WINDS...WEST TO NORTHWEST AT 30 TO 45 MPH WITH GUSTS AROUND 75 MPH POSSIBLE. * IMPACTS...TRAVEL MAY BECOME DIFFICULT IN HIGH PROFILE OR LIGHTWEIGHT VEHICLES SATURDAY. SUDDEN STRONG CROSS WINDS WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WATCH MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS MAY OCCUR. PERSONS IN THE WATCH AREA SHOULD REMAIN ALERT TO THE POSSIBILITY OF HIGH WINDS AND BE PREPARED TO TAKE ACTION SHOULD HIGH WINDS DEVELOP. && $$ COZ040-041-043>047-049-300615- /O.NEW.KBOU.HW.A.0010.111231T1600Z-120101T0000Z/ NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- WASHINGTON COUNTY- INCLUDING THE CITIES OF...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER...CASTLE ROCK...ELBERT...KIOWA...LARKSPUR...SIMLA... EATON...FORT LUPTON...GREELEY...ROGGEN...BRUSH...FORT MORGAN... GOODRICH...WIGGINS...BENNETT...BYERS...DEER TRAIL...LEADER... AGATE...HUGO...LIMON...MATHESON...FORDER...KARVAL...KUTCH... PUNKIN CENTER...AKRON...COPE...LAST CHANCE...OTIS 303 PM MST THU DEC 29 2011 ...HIGH WIND WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY AFTERNOON... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A HIGH WIND WATCH...WHICH IS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY AFTERNOON. * TIMING...STRONG WINDS ARE EXPECTED TO DEVELOP LATE SATURDAY MORNING AND CONTINUE THROUGH SATURDAY AFTERNOON. * WINDS...NORTHWEST AT 30 TO 40 MPH WITH GUSTS AROUND 60 MPH POSSIBLE. * IMPACTS...TRAVEL MAY BECOME DIFFICULT IN HIGH PROFILE OR LIGHTWEIGHT VEHICLES SATURDAY. SUDDEN STRONG CROSS WINDS WILL BE POSSIBLE. IN ADDITION...AREAS OF BLOWING DUST MAY ALSO REDUCE VISIBILITIES OVER THE EASTERN PLAINS OF COLORADO. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WATCH MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS MAY OCCUR. PERSONS IN THE WATCH AREA SHOULD REMAIN ALERT TO THE POSSIBILITY OF HIGH WINDS AND BE PREPARED TO TAKE ACTION SHOULD HIGH WINDS DEVELOP. && $$
3 follow-up statements
897 WWUS75 KBOU 300008 NPWBOU URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 508 PM MST THU DEC 29 2011 ...HIGH WINDS WILL EASE THIS EVENING BUT ANOTHER ROUND OF STRONG WINDS EXPECTED LATE FRIDAY NIGHT AND SATURDAY... .STRONG WINDS WILL GRADUALLY DECREASE BY OR SHORTLY AFTER SUNSET THIS EVENING AS ONE UPPER LEVEL DISTURBANCE MOVES EAST INTO THE CENTRAL PLAINS. THE WINDS WILL CONTINUE TO DECREASE THROUGH THE NIGHT AND REMAIN RELATIVELY LIGHT THROUGH FRIDAY EVENING. HOWEVER...THE NEXT FAST MOVING WEATHER DISTURBANCE WILL BRING MORE STRONG WINDS BY FRIDAY NIGHT INTO SATURDAY. THE STRONGER WINDS ARE FIRST EXPECTED TO DEVELOP IN THE FRONT RANGE MOUNTAINS AND FOOTHILLS AFTER MIDNIGHT FRIDAY NIGHT...AND THEN SPREAD ACROSS THE PLAINS SATURDAY WITH THE PASSAGE OF THE UPPER LEVEL DISTURBANCE. COZ042-048-050-051-301230- /O.EXP.KBOU.HW.W.0010.000000T0000Z-111230T0000Z/ /O.CON.KBOU.HW.A.0010.111231T1600Z-120101T0000Z/ NORTHEAST WELD COUNTY-LOGAN COUNTY-SEDGWICK COUNTY- PHILLIPS COUNTY- INCLUDING THE CITIES OF...BRIGGSDALE...GROVER...PAWNEE BUTTES... RAYMER...STONEHAM...CROOK...MERINO...STERLING...PEETZ... JULESBURG...OVID...SEDGWICK...AMHERST...HAXTUN...HOLYOKE 508 PM MST THU DEC 29 2011 ...HIGH WIND WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY AFTERNOON... ...HIGH WIND WARNING HAS EXPIRED... THE HIGH WIND WARNING IS NO LONGER IN EFFECT. WINDS WILL CONTINUE TO DECREASE THROUGH THE REST OF THURSDAY EVENING. A HIGH WIND WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY AFTERNOON. * TIMING...STRONG WINDS ARE EXPECTED TO REDEVELOP LATE SATURDAY MORNING AND CONTINUE THROUGH SATURDAY AFTERNOON. * WINDS...WEST TO NORTHWEST AT 30 TO 45 MPH WITH GUSTS AROUND 65 MPH. * IMPACTS...TRAVEL ACROSS NORTHEAST WELD...LOGAN...SEDGWICK AND PHILLIPS COUNTIES WILL BE DIFFICULT DUE TO THE STRONG WINDS. AREAS OF BLOWING DUST WILL REDUCE VISIBILITIES TO BELOW A MILE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WATCH MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS MAY OCCUR. PERSONS IN THE WATCH AREA SHOULD REMAIN ALERT TO THE POSSIBILITY OF HIGH WINDS AND BE PREPARED TO TAKE ACTION SHOULD HIGH WINDS DEVELOP. && $$ COZ033>036-301230- /O.EXP.KBOU.HW.W.0010.000000T0000Z-111230T0000Z/ /O.CON.KBOU.HW.A.0010.111231T0700Z-120101T0000Z/ 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 PM MST THU DEC 29 2011 ...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE FRIDAY NIGHT THROUGH SATURDAY AFTERNOON... ...HIGH WIND WARNING HAS EXPIRED... THE HIGH WIND WARNING IS NO LONGER IN EFFECT. GUSTY WINDS WILL CONTINUE INTO THURSDAY EVENING...ESPECIALLY IN THE HIGHER AREAS ...BUT ARE EXPECTED TO REMAIN BELOW WARNING LEVELS. A HIGH WIND WATCH REMAINS IN EFFECT FROM LATE FRIDAY NIGHT THROUGH SATURDAY AFTERNOON. * TIMING...STRONG WINDS WILL CONTINUE THROUGH SUNDOWN AND THEN GRADUALLY DECREASE THIS EVENING. STRONG WINDS ARE EXPECTED TO REDEVELOP LATE FRIDAY NIGHT AND THEN CONTINUE THROUGH SATURDAY AFTERNOON. * WINDS...WEST WINDS OF 30 TO 45 MPH WILL GUST ABOVE 75 MPH. * IMPACTS...PEOPLE PLANNING TRAVEL IN THE FRONT RANGE FOOTHILLS AND OVER THE HIGHER MOUNTAIN PASSES SHOULD BE PREPARED FOR STRONG AND SUDDEN WIND GUSTS. DRIVERS OF LIGHTWEIGHT OR HIGH PROFILE VEHICLES SHOULD AVOID TRAVEL ON NORTH TO SOUTH ROADS SUCH AS THE PEAK TO PEAK HIGHWAY BETWEEN ESTES PARK AND BLACKHAWK...AND HIGHWAY 287 BETWEEN FORT COLLINS AND LARAMIE WYOMING. INTERSTATE 70 FROM GEORGETOWN TO THE EISENHOWER TUNNEL WILL ALSO BE PRONE TO THE HIGH WINDS. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WATCH MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS MAY OCCUR. PERSONS IN THE WATCH AREA SHOULD REMAIN ALERT TO THE POSSIBILITY OF HIGH WINDS AND BE PREPARED TO TAKE ACTION SHOULD HIGH WINDS DEVELOP. && $$ COZ038-039-301230- /O.CON.KBOU.HW.A.0010.111231T1600Z-120101T0000Z/ 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 PM MST THU DEC 29 2011 ...HIGH WIND WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY AFTERNOON... A HIGH WIND WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY AFTERNOON. * TIMING...STRONG WINDS ARE EXPECTED TO REDEVELOP SATURDAY MORNING AND CONTINUE THROUGH SATURDAY AFTERNOON. * WINDS...WEST TO NORTHWEST AT 30 TO 45 MPH WITH GUSTS AROUND 75 MPH POSSIBLE. * IMPACTS...TRAVEL MAY BECOME DIFFICULT IN HIGH PROFILE OR LIGHTWEIGHT VEHICLES SATURDAY. SUDDEN STRONG CROSS WINDS WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WATCH MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS MAY OCCUR. PERSONS IN THE WATCH AREA SHOULD REMAIN ALERT TO THE POSSIBILITY OF HIGH WINDS AND BE PREPARED TO TAKE ACTION SHOULD HIGH WINDS DEVELOP. && $$ COZ040-041-043>047-049-301230- /O.CON.KBOU.HW.A.0010.111231T1600Z-120101T0000Z/ NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- WASHINGTON COUNTY- INCLUDING THE CITIES OF...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER...CASTLE ROCK...ELBERT...KIOWA...LARKSPUR...SIMLA... EATON...FORT LUPTON...GREELEY...ROGGEN...BRUSH...FORT MORGAN... GOODRICH...WIGGINS...BENNETT...BYERS...DEER TRAIL...LEADER... AGATE...HUGO...LIMON...MATHESON...FORDER...KARVAL...KUTCH... PUNKIN CENTER...AKRON...COPE...LAST CHANCE...OTIS 508 PM MST THU DEC 29 2011 ...HIGH WIND WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY AFTERNOON... A HIGH WIND WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY AFTERNOON. * TIMING...STRONG WINDS ARE EXPECTED TO DEVELOP LATE SATURDAY MORNING AND CONTINUE THROUGH SATURDAY AFTERNOON. * WINDS...NORTHWEST AT 30 TO 40 MPH WITH GUSTS AROUND 60 MPH POSSIBLE. * IMPACTS...TRAVEL MAY BECOME DIFFICULT IN HIGH PROFILE OR LIGHTWEIGHT VEHICLES SATURDAY. SUDDEN STRONG CROSS WINDS WILL BE POSSIBLE. IN ADDITION...AREAS OF BLOWING DUST MAY ALSO REDUCE VISIBILITIES OVER THE EASTERN PLAINS OF COLORADO. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WATCH MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS MAY OCCUR. PERSONS IN THE WATCH AREA SHOULD REMAIN ALERT TO THE POSSIBILITY OF HIGH WINDS AND BE PREPARED TO TAKE ACTION SHOULD HIGH WINDS DEVELOP. && $$
757 WWUS75 KBOU 301052 NPWBOU URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 352 AM MST FRI DEC 30 2011 ...HIGH WINDS WILL EASE TODAY BUT ANOTHER ROUND OF STRONG WINDS EXPECTED LATE TONIGHT AND SATURDAY... .STRONG WINDS ALOFT CONTINUE ACROSS NORTHERN COLORADO...BUT THE THREAT OF HIGH WINDS WILL BE LOWER TODAY AND CLIMB LATER THIS EVENING. ANOTHER STRONG TROUGH WITH STRONG COLD FRONT WILL SLAM INTO THE MOUNTAINS LATE TONIGHT...WITH THE COLD AIR SPILLING ACROSS THE PLAINS ON SATURDAY. COZ033>036-301900- /O.CON.KBOU.HW.A.0010.111231T0700Z-120101T0000Z/ 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...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 352 AM MST FRI DEC 30 2011 ...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY AFTERNOON... A HIGH WIND WATCH REMAINS IN EFFECT FROM LATE FRIDAY NIGHT THROUGH SATURDAY AFTERNOON. * TIMING...HIGH WINDS ARE EXPECTED TO REDEVELOP LATE FRIDAY NIGHT AND THEN CONTINUE THROUGH SATURDAY AFTERNOON. * WINDS...NORTHWEST WINDS OF 30 TO 45 MPH WILL GUST ABOVE 75 MPH. * IMPACTS...PEOPLE PLANNING TRAVEL IN THE FRONT RANGE FOOTHILLS AND OVER THE HIGHER MOUNTAIN PASSES SHOULD BE PREPARED FOR STRONG AND SUDDEN WIND GUSTS. DRIVERS OF LIGHTWEIGHT OR HIGH PROFILE VEHICLES SHOULD AVOID TRAVEL ON NORTH TO SOUTH ROADS SUCH AS THE PEAK TO PEAK HIGHWAY BETWEEN ESTES PARK AND BLACKHAWK...AND HIGHWAY 287 BETWEEN FORT COLLINS AND LARAMIE WYOMING. INTERSTATE 70 FROM GEORGETOWN TO THE EISENHOWER TUNNEL WILL ALSO BE PRONE TO THE HIGH WINDS. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WATCH MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS MAY OCCUR. PERSONS IN THE WATCH AREA SHOULD REMAIN ALERT TO THE POSSIBILITY OF HIGH WINDS AND BE PREPARED TO TAKE ACTION SHOULD HIGH WINDS DEVELOP. && $$ COZ038-039-301900- /O.CON.KBOU.HW.A.0010.111231T1600Z-120101T0000Z/ LARIMER COUNTY BELOW 6000 FEET/NORTHWEST WELD COUNTY- BOULDER AND JEFFERSON COUNTIES BELOW 6000 FEET/WEST BROOMFIELD COUNTY- INCLUDING...FORT COLLINS...HEREFORD...LOVELAND...NUNN...ARVADA... BOULDER...GOLDEN...LAKEWOOD...LONGMONT 352 AM MST FRI DEC 30 2011 ...HIGH WIND WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY AFTERNOON... * TIMING...STRONG WINDS ARE EXPECTED TO REDEVELOP SATURDAY MORNING AND CONTINUE THROUGH SATURDAY AFTERNOON. * WINDS...WEST TO NORTHWEST AT 30 TO 45 MPH WITH GUSTS AROUND 75 MPH POSSIBLE. * IMPACTS...TRAVEL MAY BECOME DIFFICULT IN HIGH PROFILE OR LIGHTWEIGHT VEHICLES SATURDAY. SUDDEN STRONG CROSS WINDS WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WATCH MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS MAY OCCUR. PERSONS IN THE WATCH AREA SHOULD REMAIN ALERT TO THE POSSIBILITY OF HIGH WINDS AND BE PREPARED TO TAKE ACTION SHOULD HIGH WINDS DEVELOP. && $$ COZ040>051-301900- /O.CON.KBOU.HW.A.0010.111231T1600Z-120101T0000Z/ NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- INCLUDING...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER...CASTLE ROCK...ELBERT...KIOWA...LARKSPUR...SIMLA... BRIGGSDALE...GROVER...PAWNEE BUTTES...RAYMER...STONEHAM...EATON... FORT LUPTON...GREELEY...ROGGEN...BRUSH...FORT MORGAN...GOODRICH... WIGGINS...BENNETT...BYERS...DEER TRAIL...LEADER...AGATE...HUGO... LIMON...MATHESON...FORDER...KARVAL...KUTCH...PUNKIN CENTER... CROOK...MERINO...STERLING...PEETZ...AKRON...COPE...LAST CHANCE... OTIS...JULESBURG...OVID...SEDGWICK...AMHERST...HAXTUN...HOLYOKE 352 AM MST FRI DEC 30 2011 ...HIGH WIND WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY AFTERNOON... A HIGH WIND WATCH REMAINS IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY AFTERNOON. * TIMING...STRONG WINDS ARE EXPECTED TO REDEVELOP LATE SATURDAY MORNING AND CONTINUE THROUGH SATURDAY AFTERNOON. * WINDS...WEST TO NORTHWEST AT 30 TO 45 MPH WITH GUSTS AROUND 65 MPH. * IMPACTS...TRAVEL ACROSS NORTHEAST WELD...LOGAN...SEDGWICK AND PHILLIPS COUNTIES WILL BE DIFFICULT DUE TO THE STRONG WINDS. AREAS OF BLOWING DUST WILL REDUCE VISIBILITIES TO BELOW A MILE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WATCH MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS MAY OCCUR. PERSONS IN THE WATCH AREA SHOULD REMAIN ALERT TO THE POSSIBILITY OF HIGH WINDS AND BE PREPARED TO TAKE ACTION SHOULD HIGH WINDS DEVELOP. && $$
592 WWUS75 KBOU 301715 NPWBOU URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER CO 1015 AM MST FRI DEC 30 2011 ...HIGH WINDS WILL REDEVELOP LATE TONIGHT AND SATURDAY... .ANOTHER STRONG AND FAST MOVING UPPER LEVEL DISTURBANCE AND COLD FRONT WILL HIT COLORADO EARLY SATURDAY MORNING. AHEAD OF THIS FEATURE...STRONG WINDS ARE EXPECTED TO DEVELOP ACROSS THE FRONT RANGE MOUNTAINS AND FOOTHILLS LATE TONIGHT. THE STRONG WINDS WILL THEN SPREAD RAPIDLY EASTWARD ACROSS THE PLAINS SATURDAY MORNING WITH THE PASSAGE OF THE UPPER LEVEL DISTURBANCE AND COLD FRONT. TRAVEL CONDITIONS WILL BE HAZARDOUS. SNOW AND BLOWING SNOW WILL REDUCE VISIBILITIES IN THE MOUNTAINS...WHILE ON THE PLAINS AREAS OF BLOWING DUST MAY REDUCE VISIBILITIES TO NEAR ZERO IN SPOTS. TRAVEL IN HIGH PROFILE OR LIGHTWEIGHT VEHICLES IS NOT RECOMMENDED DUE TO THE STRENGTH OF THESE WINDS. SEMI-TRAILERS MAY BE BLOWN OFF THE ROAD. THIS WARNING INCLUDES INTERSTATE 76 FROM DENVER TO THE NEBRASKA BORDER...INTERSTATE 70 FROM THE EISENHOWER TUNNEL INTO KANSAS...AND I-25 FROM MONUMENT HILL THROUGH THE FRONT RANGE URBAN CORRIDOR TO THE WYOMING BORDER. COZ033>036-310500- /O.UPG.KBOU.HW.A.0010.111231T0700Z-120101T0000Z/ /O.NEW.KBOU.HW.W.0011.111231T0700Z-120101T0000Z/ 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 1015 AM MST FRI DEC 30 2011 ...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 5 PM MST SATURDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 5 PM MST SATURDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * TIMING...HIGH WINDS ARE EXPECTED TO REDEVELOP SHORTLY AFTER MIDNIGHT TONIGHT AND THEN CONTINUE THROUGH SATURDAY AFTERNOON. * WINDS...WEST WINDS OF 30 TO 45 MPH WILL GUST IN EXCESS OF 80 MPH ABOVE TIMBERLINE AND IN WIND PRONE AREAS OF THE FOOTHILLS. * IMPACTS...PEOPLE PLANNING TRAVEL IN THE FRONT RANGE FOOTHILLS AND OVER THE HIGHER MOUNTAIN PASSES SHOULD BE PREPARED FOR STRONG AND SUDDEN WIND GUSTS. DRIVERS OF LIGHTWEIGHT OR HIGH PROFILE VEHICLES SHOULD AVOID TRAVEL. THIS INCLUDES THE PEAK TO PEAK HIGHWAY BETWEEN ESTES PARK AND BLACKHAWK...HIGHWAY 287 BETWEEN FORT COLLINS AND LARAMIE WYOMING...AND HIGHWAY 72 THROUGH COAL CREEK CANYON. INTERSTATE 70 WILL ALSO BE PRONE TO THE HIGH WINDS...WITH THE STRONGEST WINDS EXPECTED AROUND GEORGETOWN WHERE GUSTS AROUND 90 MPH ARE LIKELY. * OTHER IMPACTS...SNOW AND BLOWING SNOW WILL SIGNIFICANTLY REDUCE VISIBILITIES OVER THE HIGHER MOUNTAIN PASSES. ROADS WILL ALSO BE SNOW COVERED AND ICY...WITH SLOW TRAVEL. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY. && $$ COZ038-039-310500- /O.UPG.KBOU.HW.A.0010.111231T1600Z-120101T0000Z/ /O.NEW.KBOU.HW.W.0011.111231T1500Z-120101T0000Z/ 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 1015 AM MST FRI DEC 30 2011 ...HIGH WIND WARNING IN EFFECT FROM 8 AM TO 5 PM MST SATURDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM 8 AM TO 5 PM MST SATURDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * TIMING...HIGH WINDS WILL DEVELOP EARLY SATURDAY MORNING. THE STRONGEST WINDS ARE EXPECTED TO OCCUR BETWEEN 9 AM AND 3 PM... WITH A GRADUAL DECREASE LATE SATURDAY AFTERNOON. * WINDS...WEST TO NORTHWEST 30 TO 45 MPH WITH GUSTS AROUND 75 MPH. * IMPACTS...TRAVEL WILL BE DIFFICULT AND DRIVERS OF LIGHTWEIGHT OR HIGH PROFILE VEHICLES SHOULD AVOID TRAVEL ON SATURDAY. * OTHER IMPACTS...BROKEN TREE LIMBS AND BRIEF POWER OUTAGES WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY. && $$ COZ040-041-043>047-310500- /O.UPG.KBOU.HW.A.0010.111231T1600Z-120101T0000Z/ /O.NEW.KBOU.HW.W.0011.111231T1500Z-120101T0000Z/ NORTH DOUGLAS COUNTY BELOW 6000 FEET/DENVER/WEST ADAMS AND ARAPAHOE COUNTIES/EAST BROOMFIELD COUNTY- ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET- CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY- CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY- SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...AURORA...BRIGHTON...CITY OF DENVER... DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH...LITTLETON... PARKER...CASTLE ROCK...ELBERT...KIOWA...LARKSPUR...SIMLA... EATON...FORT LUPTON...GREELEY...ROGGEN...BRUSH...FORT MORGAN... GOODRICH...WIGGINS...BENNETT...BYERS...DEER TRAIL...LEADER... AGATE...HUGO...LIMON...MATHESON...FORDER...KARVAL...KUTCH... PUNKIN CENTER 1015 AM MST FRI DEC 30 2011 ...HIGH WIND WARNING IN EFFECT FROM 8 AM TO 5 PM MST SATURDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM 8 AM TO 5 PM MST SATURDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * TIMING...HIGH WINDS WILL DEVELOP SATURDAY MORNING...AND THEN CONTINUE THROUGH THE DAY. WINDS WILL GRADUALLY DECREASE TOWARD SUNSET SATURDAY. * WINDS...WEST TO NORTHWEST 30 TO 45 MPH WITH GUSTS AROUND 65 MPH. * IMPACTS...TRAVEL WILL BE DIFFICULT AND DRIVERS OF LIGHTWEIGHT OR HIGH PROFILE VEHICLES SHOULD AVOID TRAVEL ON SATURDAY. SEMI- TRAILERS MAY BE OVERTURNED. BLOWING DUST NEAR OPEN FIELDS ON THE EASTERN PLAINS WILL ALSO REDUCE VISIBILITIES. * OTHER IMPACTS...BROKEN TREE LIMBS AND BRIEF POWER OUTAGES WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY. && $$ COZ042-048>051-310500- /O.UPG.KBOU.HW.A.0010.111231T1600Z-120101T0000Z/ /O.NEW.KBOU.HW.W.0011.111231T1500Z-120101T0200Z/ NORTHEAST WELD COUNTY-LOGAN COUNTY-WASHINGTON COUNTY- SEDGWICK COUNTY-PHILLIPS COUNTY- INCLUDING THE CITIES OF...BRIGGSDALE...GROVER...PAWNEE BUTTES... RAYMER...STONEHAM...CROOK...MERINO...STERLING...PEETZ...AKRON... COPE...LAST CHANCE...OTIS...JULESBURG...OVID...SEDGWICK... AMHERST...HAXTUN...HOLYOKE 1015 AM MST FRI DEC 30 2011 ...HIGH WIND WARNING IN EFFECT FROM 8 AM TO 7 PM MST SATURDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A HIGH WIND WARNING...WHICH IS IN EFFECT FROM 8 AM TO 7 PM MST SATURDAY. THE HIGH WIND WATCH IS NO LONGER IN EFFECT. * TIMING...HIGH WINDS WILL DEVELOP SATURDAY MORNING AND THEN CONTINUE INTO EARLY SATURDAY EVENING BEFORE DECREASING. * WINDS...NORTHWEST 30 TO 45 MPH WITH GUSTS AROUND 70 MPH. * IMPACTS...TRAVEL ACROSS THE NORTHEAST PLAINS OF COLORADO WILL BE DIFFICULT DUE TO THE STRONG WINDS. DRIVERS OF SEMI-TRUCKS SHOULD DELAY TRAVEL UNTIL WINDS SUBSIDE AS SEMI-TRUCKS WILL BE SUBJECT TO OVERTURNING DUE TO THE STRONG CROSS WINDS. AREAS OF BLOWING DUST WILL REDUCE VISIBILITIES TO NEAR ZERO AT TIMES. * OTHER IMPACTS...BROKEN TREE LIMBS AND BRIEF POWER OUTAGES WILL BE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A HIGH WIND WARNING MEANS THAT STRONG AND POTENTIALLY DAMAGING WINDS ARE EITHER OCCURRING OR HIGHLY LIKELY. && $$ BARJENBRUCH/KRIEDERMAN
What forecasters said that day
The local office's own words before this high wind watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Denver/Boulder, CO wrote its last area forecast discussion before this high wind watch went out at Dec 29, 11:21 AM MST, 3 hours 42 minutes earlier.
Area forecast discussion, Dec 29, 11:21 AM MST, 3 hours 42 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DENVER CO 1121 AM MST THU DEC 29 2011 .AVIATION...STRONG WEST WINDS WITH GUSTS OF 20 TO 30 KNOTS ARE EXPECTED TO CONTINUE AT THE DENVER AREA AIRPORTS THROUGH MOST OF THE AFTERNOON WITH THE STRONGEST READINGS EXPECTED AT KBJC...THEN AT KDEN AND KAPA. WINDS WILL SUBSIDE AGAIN TONIGHT...GOING TO TYPICAL DRAINAGE WINDS IN THE EVENING. VFR CONDITIONS WILL PREVAIL THROUGH THE NEXT 24 HOURS. && .PREV DISCUSSION... /ISSUED 734 AM MST THU DEC 29 2011/ UPDATE...STRONG WINDS HAD DEVELOPED OVER THE FRONT RANGE FOOTHILLS EARLY THIS MORNING. PEAK GUSTS OF 75 MPH WAS RECORDED AT THE WIND TECHNOLOGY CENTER SOUTH OF BOULDER...WHILE SOME TREES WERE ALSO KNOCKED DOWN ALONG HIGHWAY 36 BETWEEN PINEWOOD SPRINGS AND ESTES PARK. AT THE SAME TIME...SNOW HAD QUICKLY SPREAD ACROSS THE MOUNTAINS SO HAVE INCREASED THE SNOWFALL THERE TODAY. 12Z GJT AND SLC SOUNDINGS WERE MOIST ADIABATIC THROUGH A RELATIVELY DEEP LAYER FROM 700 MB TO 400 MB...SO EXPECT MORE SNOW IN THE HIGH COUNTRY AND HAVE INCREASED THE SNOW AMOUNTS THERE. GIVEN THE AMOUNT OF WIND WE MAY NEED TO ISSUE AN ADVISORY. PREV DISCUSSION... /ISSUED 440 AM MST THU DEC 29 2011/ SHORT TERM...IT HAS BEEN GUSTY THIS EVENING...BUT NO HIGH WINDS. CROSS SECTIONS STILL INDICATE THE DEVELOPMENT OF HIGH WINDS THIS MORNING...AND SANGSTER HIGH WIND PROGRAM STILL SHOWS HIGH WIND WARNING LEVEL WINDS THROUGH 18Z. NAM SHOWS JET ARRIVING AROUND 18Z...AND BEING IN GOOD LOCATION FOR HIGH WINDS INTO THE EVENING. THE HIGH WIND WARNING REMAINS IN EFFECT THROUGH 5PM TODAY...IT MAY NEED TO BE EXTENDED INTO THE EVENING. AS A RESULT OF WEST WINDS GUSTING 20 TO 30 MPH ALONG THE URBAN CORRIDOR...IT HAS BEEN A MILD NIGHT...AND WE WILL GET A HEAD START ON WARMING TODAY. FOR DENVER GUIDANCE WAS 56 FOR HIGH ON NAM AND 66 ON GFS. WILL FAVOR NAM DUE TO PERSISTENT SNOW COVER. ACROSS NORTHEAST COLORADO WINDS WILL SPREAD OUT THIS AFTERNOON...WITH GUSTS 30 TO 40 MPH THIS AFTERNOON NORTH AND EAST OF FORT MORGAN...ALONG WITH TEMPERATURES IN THE 50S. THE MOUNTAIN SNOWS HAVE ALSO BEEN SLOW TO MATERIALIZE THIS MORNING. RADAR SHOWS SNOW INTO WESTERN WYOMING AND UTAH...SO SHOULD ARRIVE IN OUR MOUNTAINS BEFORE MIDDAY. HAVE LOWERED POPS A BIT IN THE MOUNTAINS FOR THE MORNING. MODELS STILL SUGGEST SOME MEASURABLE SNOW...ON THE ORDER OF 2 TO 5 INCHES BY THE TIME THE SNOW TAPERS OFF TONIGHT. LONG TERM...STRONG JET-LEVEL ZONAL FLOW SENDS YET ANOTHER UPR AIR DISTURBANCE INLAND OVER THE PACIFIC NORTHWEST ON FRIDAY WHICH THEN RACES EAST-SOUTHEASTWARD ACROSS WYOMING AND NORTHERN COLORADO EITHER LATE FRIDAY NIGHT OR SATURDAY MORNING. MODELS DIFFER ON THE DETAILS BUT TIMING DIFFERENCES APPEAR SMALL. STRONG QG ASCENT/DECENT COUPLET ASSOCIATED WITH THE PASSING TROUGH IS LIKELY TO PRODUCE LARGE PRES FALLS EAST OF THE MTNS PRIOR TO TROUGH PASSAGE...THEN EVEN GREATER PRESSURE RISES WITH STG COLD AIR ADVECTION IN THE WAKE OF THE TROUGH. A STEEP CROSS MTN PRES GRADIENT AND W/NWLY RIDGETOP FLOW OF 65-80KT WILL INITIALLY PRODUCE STRONG/GUSTY WEST-SOUTHWESTERLY CHINOOK WINDS THEN EVEN STRONGER BORA-TYPE WINDS DURING THE DAY SATURDAY. MODEL WIND FIELDS AND CROSS SECTIONS INDICATE WIND SPEEDS APPROACHING IF NOT EXCEEDING HIGH WIND CRITERIA IN AND NEAR THE FRONT RANGE AS WELL AS ACROSS THE NORTHEAST PLAINS OF COLORADO WITH INFLUX OF COLD AIR. PERIOD OF STRONGEST WINDS APPEARS TO BE SHORT...PERHAPS NO MORE THAN 9 HOURS. UNCERTAINTIES IN THE TIMING AND STRENGTH OF THIS WAVE AND COLD AIR PUSH PREVENTS ME FROM ISSUING A HIGH WIND WATCH AT THIS TIME. WILL NEED TO CONTINUE TO MONITOR THIS SITUATION AND LATER MODEL RUNS TO HELP PIN THIS HIGH WIND THREAT. OTHERWISE...LOOKING FOR ANOTHER DAY OF UNSEASONABLY MILD TEMPERATURES FRIDAY WITH DOWNSLOPE FLOW BENEATH A SHORTWAVE UPPER RIDGE. ON SATURDAY COULD SEE TEMPS AS MUCH AS 15F COOLER THAN THE DAY BEFORE. ALL DEPENDS ON WHEN THE 850-700MB TROUGH PASSES. MTNS COULD SEE A FEW INCHES OF SNOW WITH PASSAGE OF THE TROUGH FRIDAY NIGHT. COULD GET PRETTY NASTY FOR A TIME WITH WHITEOUT CONDITIONS LATE FRIDAY NIGHT WITH 60-80KT WIND GUSTS ON THE HIGH PASSES. SATURDAY NIGHT INTO SUNDAY...WINDS EASE UP AS WINDS ON THE PLAINS SHIFTING TO A NORTH-NORTHEASTERLY DIRECTION DURING THE DAY SUNDAY WHICH SHOULD PREVENT MUCH WARMING. HOWEVER SHOULD SEE PLENTY OF SUNSHINE WITH STRONG SUBSIDENCE AND DRYING ALOFT. LOOKING AHEAD TO WEDNESDAY...RIDGING OVER THE CENTRAL ROCKY MTN REGION SHOULD KEEP THINGS DRY EVEN IN THE HIGH COUNTRY...AND WINDS GENERALLY ON THE LIGHT SIDE WITH A NORTHWARD SHIFT IN THE STORM TRACK. EXPECT TEMPERATURES DURING THE PERIOD TO BE NEAR TO ABOVE AVERAGE. AVIATION...WINDS HAVE FINALLY SUBSIDED THIS MORNING...EXPECT WITH MIXING THAT WESTERLY WINDS WILL INCREASE AGAIN MID MORNING WITH GUSTS OF 20 TO 30 KNOTS DEVELOPING AT DEN AND BJC. WINDS WILL SUBSIDE AGAIN TONIGHT...GOING TO TYPICAL DRAINAGE WINDS IN THE EVENING. VFR CONDITIONS WILL PREVAIL THROUGH THE NEXT 24 HOURS. && .BOU WATCHES/WARNINGS/ADVISORIES... HIGH WIND WARNING UNTIL 5 PM MST THIS AFTERNOON FOR COZ033>036. && SHORT TERM...KRIEDERMAN LONG TERM....BAKER AVIATION...KRIEDERMAN
Hazardous weather outlook, Dec 29, 10:37 AM MST, 4 hours 26 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DENVER CO 1037 AM MST THU DEC 29 2011 COZ030>051-301300- JACKSON COUNTY BELOW 9000 FEET-WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET-GRAND AND SUMMIT COUNTIES BELOW 9000 FEET-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-CENTRAL AND SOUTHEAST PARK COUNTY-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-NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY-CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES- NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN COUNTY-SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY-LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY- 1037 AM MST THU DEC 29 2011 ...HIGH WIND WARNING CONTINUES FOR THE FRONT RANGE MOUNTAINS AND FOOTHILLS THROUGH 5 PM THIS AFTERNOON... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL COLORADO. .DAY ONE...TODAY AND TONIGHT THE HIGH WIND WARNING REMAINS IN EFFECT TODAY AS AN UPPER JET CONTINUES TO NEAR. GUSTS OF 65 TO 80 MPH ARE POSSIBLE IN THE MOUNTAINS EAST OF THE CONTINENTAL DIVIDE AND ALONG THE FOOTHILLS. WINDS GUSTING BETWEEN 40 AND 60 MPH WILL OCCUR ACROSS THE NORTHEAST PLAINS ALONG THE WYOMING BORDER AND NORTH THROUGH EAST OF FORT MORGAN THIS AFTERNOON. SNOW SHOWERS WILL CONTINUE OVER THE HIGH COUNTRY THROUGH THE EARLY AFTERNOON...WITH 2 TO 5 INCHES POSSIBLE ON WEST SLOPES BEFORE SNOW TAPERS OFF LATER TONIGHT. TEMPERATURES WILL REMAIN ABOVE NORMAL UNDER THESE WINDY DOWNSLOPING CONDITIONS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY STRONG GUSTY WINDS WILL DEVELOP AGAIN IN THE MOUNTAINS AND ALONG THE FRONT RANGE FRIDAY NIGHT AHEAD OF A FAST MOVING STORM SYSTEM RACING OUT OF THE PACIFIC NORTHWEST. WINDS WILL THEN STRENGTHEN AND ALSO SPREAD EAST ACROSS THE PLAINS ON SATURDAY WITH THE PASSAGE OF THIS STORM SYSTEM. MOUNTAIN AREAS SHOULD SEE A COUPLE INCHES OF NEW SNOWFALL ALONG WITH BLOWING SNOW SATURDAY...WHILE THE PLAINS WILL REMAIN DRY. DRY AND MORE TRANQUIL WEATHER WILL THEN PREVAIL FROM SUNDAY THROUGH THE MIDDLE OF NEXT WEEK. TEMPERATURES WILL WARM TO ABOVE NORMAL LEVELS AS WELL. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT. HOWEVER... WE WOULD APPRECIATE ANY REPORTS OF WIND GUSTS OVER 60 MPH. KRIEDERMAN/BARJENBRUCH
In the hours before
Local storm report, Dec 29, 9:16 AM MST, 5 hours 47 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
916 AM MST THU DEC 29 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0844 AM NON-TSTM WND GST 3 NE BOULDER 40.06N 105.21W
12/29/2011 M64.00 MPH BOULDER CO AWOS
BOULDER AIRPORT
0840 AM NON-TSTM WND GST 2 NE BOULDER 40.05N 105.22W
12/29/2011 M60.00 MPH BOULDER CO MESONET
NCAR FOOTHILLS LAB
0836 AM NON-TSTM WND GST 2 NW ROCKY FLATS 39.91N 105.23W
12/29/2011 M79.00 MPH JEFFERSON CO MESONET
NATIONAL WIND TECHNOLOGY CENTER
0735 AM NON-TSTM WND GST 2 SW BOULDER 40.01N 105.28W
12/29/2011 M70.00 MPH BOULDER CO MESONET
NCAR MESA LAB
0729 AM NON-TSTM WND GST 2 NW ROCKY FLATS 39.91N 105.24W
12/29/2011 M77.00 MPH JEFFERSON CO MESONET
NATIONAL WIND TECHNOLOGY CENTER
0712 AM NON-TSTM WND GST 2 SW BOULDER 40.01N 105.28W
12/29/2011 M68.00 MPH BOULDER CO MESONET
NCAR MESA LAB
0614 AM NON-TSTM WND GST NATURAL FORT REST AREA 40.96N 104.92W
12/29/2011 M68.00 MPH WELD CO MESONET
0600 AM NON-TSTM WND DMG 6 SE ESTES PARK 40.31N 105.44W
12/29/2011 LARIMER CO NWS EMPLOYEE
NUMEROUS TREES DOWN ON HWY 36 BETWEEN ESTES PARK AND
PINEWOOD SPRINGS.
&&
FREDINLocal storm report, Dec 29, 12:15 PM MST, 2 hours 48 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
1215 PM MST THU DEC 29 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0925 AM NON-TSTM WND GST 2 SW BOULDER 40.01N 105.28W
12/29/2011 M72.00 MPH BOULDER CO MESONET
NCAR MESA LAB
0920 AM NON-TSTM WND GST 2 NW ROCKY FLATS 39.91N 105.23W
12/29/2011 M80.00 MPH JEFFERSON CO MESONET
NATIONAL WIND TECHNOLOGY CENTER
0844 AM NON-TSTM WND GST 3 NE BOULDER 40.06N 105.21W
12/29/2011 M64.00 MPH BOULDER CO AWOS
BOULDER AIRPORT
0840 AM NON-TSTM WND GST 2 NE BOULDER 40.05N 105.22W
12/29/2011 M60.00 MPH BOULDER CO MESONET
NCAR FOOTHILLS LAB
0836 AM NON-TSTM WND GST 2 NW ROCKY FLATS 39.91N 105.23W
12/29/2011 M79.00 MPH JEFFERSON CO MESONET
NATIONAL WIND TECHNOLOGY CENTER
0735 AM NON-TSTM WND GST 2 SW BOULDER 40.01N 105.28W
12/29/2011 M70.00 MPH BOULDER CO MESONET
NCAR MESA LAB
0729 AM NON-TSTM WND GST 2 NW ROCKY FLATS 39.91N 105.24W
12/29/2011 M77.00 MPH JEFFERSON CO MESONET
NATIONAL WIND TECHNOLOGY CENTER
0712 AM NON-TSTM WND GST 2 SW BOULDER 40.01N 105.28W
12/29/2011 M68.00 MPH BOULDER CO MESONET
NCAR MESA LAB
0614 AM NON-TSTM WND GST NATURAL FORT REST AREA 40.96N 104.92W
12/29/2011 M68.00 MPH WELD CO MESONET
0600 AM NON-TSTM WND DMG 6 SE ESTES PARK 40.31N 105.44W
12/29/2011 LARIMER CO NWS EMPLOYEE
NUMEROUS TREES DOWN ON HWY 36 BETWEEN ESTES PARK AND
PINEWOOD SPRINGS.
0220 AM NON-TSTM WND GST 4 SE PINECLIFFE 39.89N 105.38W
12/29/2011 M102 MPH JEFFERSON CO CO-OP OBSERVER
&&
FREDINLocal storm report, Dec 29, 2:33 PM MST, 30 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE DENVER CO
233 PM MST THU DEC 29 2011
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0212 PM NON-TSTM WND GST 2 N LONGMONT 40.20N 105.11W
12/29/2011 M66.00 MPH BOULDER CO TRAINED SPOTTER
0209 PM NON-TSTM WND GST HAXTUN 40.64N 102.63W
12/29/2011 M60.00 MPH PHILLIPS CO TRAINED SPOTTER
EXTENSIVE BLOWING DUST
0925 AM NON-TSTM WND GST 2 SW BOULDER 40.01N 105.28W
12/29/2011 M72.00 MPH BOULDER CO MESONET
NCAR MESA LAB
0920 AM NON-TSTM WND GST 2 NW ROCKY FLATS 39.91N 105.23W
12/29/2011 M80.00 MPH JEFFERSON CO MESONET
NATIONAL WIND TECHNOLOGY CENTER
0844 AM NON-TSTM WND GST 3 NE BOULDER 40.06N 105.21W
12/29/2011 M64.00 MPH BOULDER CO AWOS
BOULDER AIRPORT
0840 AM NON-TSTM WND GST 2 NE BOULDER 40.05N 105.22W
12/29/2011 M60.00 MPH BOULDER CO MESONET
NCAR FOOTHILLS LAB
0836 AM NON-TSTM WND GST 2 NW ROCKY FLATS 39.91N 105.23W
12/29/2011 M79.00 MPH JEFFERSON CO MESONET
NATIONAL WIND TECHNOLOGY CENTER
0735 AM NON-TSTM WND GST 2 SW BOULDER 40.01N 105.28W
12/29/2011 M70.00 MPH BOULDER CO MESONET
NCAR MESA LAB
0729 AM NON-TSTM WND GST 2 NW ROCKY FLATS 39.91N 105.24W
12/29/2011 M77.00 MPH JEFFERSON CO MESONET
NATIONAL WIND TECHNOLOGY CENTER
0712 AM NON-TSTM WND GST 2 SW BOULDER 40.01N 105.28W
12/29/2011 M68.00 MPH BOULDER CO MESONET
NCAR MESA LAB
0614 AM NON-TSTM WND GST NATURAL FORT REST AREA 40.96N 104.92W
12/29/2011 M68.00 MPH WELD CO MESONET
0600 AM NON-TSTM WND DMG 6 SE ESTES PARK 40.31N 105.44W
12/29/2011 LARIMER CO NWS EMPLOYEE
NUMEROUS TREES DOWN ON HWY 36 BETWEEN ESTES PARK AND
PINEWOOD SPRINGS.
0220 AM NON-TSTM WND GST 4 SE PINECLIFFE 39.89N 105.38W
12/29/2011 M102 MPH JEFFERSON CO CO-OP OBSERVER
&&
FREDINNearby
High Wind Watches in Colorado, 2011Every high wind watch in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.