Alert archive / Colorado / Winter Storm Warnings in 2013
Winter Storm Warning 12, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this winter storm warning at Nov 15, 2013, 3:46 PM MST for Grand County, Jackson County, Colorado. It took effect at Nov 16, 2013, 12:00 PM MST. It was in force for 23 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Nov 15, 2013, 3:46 PM MST (22:46 UTC)
- In effect from
- Nov 16, 2013, 12:00 PM MST
- Expired
- Nov 17, 2013, 11:00 AM MST
- In force
- 23 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Grand County, CO, Jackson County, CO
The radar
The Cheyenne radar (KCYS), 147 km from the middle of the area, began a volume at 22:51 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
Grand Junction, CO (KGJT), launched 12:00Z, 10.8 hours before the alert went out and 239 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
- 2250 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 117 m²/s²
- 0-3 km storm-relative helicity
- 194 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
934 WWUS45 KBOU 152246 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 346 PM MST FRI NOV 15 2013 ...SNOW AND WIND HEADED FOR THE NORTHERN COLORADO MOUNTAINS... .A WINTER STORM WILL MOVE ACROSS NORTHERN COLORADO THIS WEEKEND BRINGING SNOW TO THE MOUNTAINS AND WIND IN OTHER AREAS. IN NORTHERN COLORADO THERE WILL BE A PERIOD OF SNOW TONIGHT...THEN A DECREASE IN THE ACTIVITY LATE TONIGHT INTO SATURDAY MORNING. THE SNOW AND WIND WILL INCREASE LATER SATURDAY THROUGH SATURDAY NIGHT...WITH SNOW DECREASING SUNDAY MORNING. STRONG WINDS ARE EXPECTED WITH THIS STORM...SO NEAR BLIZZARD CONDITIONS ARE POSSIBLE SATURDAY NIGHT EVEN IN AREAS WITH LIMITED SNOW COVER. COZ031-161200- /O.NEW.KBOU.WS.W.0012.131116T1900Z-131117T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 346 PM MST FRI NOV 15 2013 ...WINTER STORM WARNING IN EFFECT FROM NOON SATURDAY TO 11 AM MST SUNDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM NOON SATURDAY TO 11 AM MST SUNDAY. * TIMING...SNOW WILL INCREASE ON SATURDAY AND CONTINUE SATURDAY NIGHT...THEN DIMINISH SUNDAY MORNING. * SNOW ACCUMULATIONS...10 TO 16 INCHES BY NOON SUNDAY. * WIND/VISIBILITY...WEST WINDS AT 20 TO 35 MPH WILL BE COMMON...WITH GUSTS TO 60 MPH OVER HIGHER RIDGES. NEAR BLIZZARD CONDITIONS ARE EXPECTED SATURDAY NIGHT. * IMPACTS...ROADS WILL BECOME SNOW COVERED AND HEAVY DRIFTING OF SNOW IS POSSIBLE. ROAD CLOSURES ARE POSSIBLE...ESPECIALLY ON LESS TRAVELED ROADS. 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. && $$ COZ033-034-161200- /O.NEW.KBOU.WW.Y.0027.131116T1900Z-131117T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS... BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE... EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL... INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS... WILLIAMS FORK MOUNTAINS...WINTER PARK 346 PM MST FRI NOV 15 2013 ...WINTER WEATHER ADVISORY IN EFFECT FROM NOON SATURDAY TO 11 AM MST SUNDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM NOON SATURDAY TO 11 AM MST SUNDAY. * TIMING...SNOW WILL INCREASE SATURDAY AFTERNOON AND CONTINUE SATURDAY NIGHT...THEN DIMINISH SUNDAY MORNING. * SNOW ACCUMULATIONS...8 TO 16 INCHES BY NOON SUNDAY. * WIND/VISIBILITY...WEST WINDS AT 20 TO 40 MPH WILL BE COMMON. GUSTS TO 80 MPH CAN BE EXPECTED ABOVE TIMBERLINE. NEAR BLIZZARD CONDITIONS ARE EXPECTED IN HIGHER AREAS SATURDAY NIGHT. * IMPACTS...ROADS WILL BECOME SNOWPACKED AND TRAVEL WILL BE DIFFICULT. SIGNIFICANT DRIFTING AND ROAD CLOSURES ARE POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ GIMMESTAD
6 follow-up statements
547 WWUS45 KBOU 160455 AAA WSWBOU URGENT - WINTER WEATHER MESSAGE...UPDATED NATIONAL WEATHER SERVICE DENVER/BOULDER CO 955 PM MST FRI NOV 15 2013 ...SNOW AND STRONG GUSTY WINDS HEADING FOR THE NORTH CENTRAL MOUNTAINS OF COLORADO... .A FAST MOVING PACIFIC STORM SYSTEM WILL DROP DOWN ACROSS NORTHERN COLORADO ON SATURDAY AND SATURDAY NIGHT BRINGING SNOW TO THE NORTHERN CENTRAL MOUNTAINS. SNOWFALL IS EXPECTED TO INCREASE SATURDAY EVENING...AND BECOME HEAVY AT TIMES ABOVE TIMBERLINE AND ON WEST FACING SLOPES. SNOW WILL ALSO BE ACCOMPANIED BY STRONG WEST WINDS RESULTING IN BLOWING AND DRIFTING SNOW ON THE HIGH MOUNTAIN PASSES. SNOWFALL IS EXPECTED TO GRADUALLY DIMINISH LATE SATURDAY NIGHT INTO SUNDAY MORNING WITH THIS STORM SYSTEM EXITING THE STATE. HOWEVER STRONG...COLD NORTHWEST WINDS WILL CONTINUE TO PRODUCE AREAS OF BLOWING SNOW POSSIBLY CREATING NEAR BLIZZARD CONDITIONS UP AROUND TIMBERLINE. COZ031-161300- /O.CON.KBOU.WS.W.0012.131116T1900Z-131117T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 955 PM MST FRI NOV 15 2013 ...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON SATURDAY TO 11 AM MST SUNDAY... * TIMING...SNOWFALL WILL INCREASE ON SATURDAY AND CONTINUE SATURDAY NIGHT...THEN DIMINISH SUNDAY MORNING. * TOTAL SNOW ACCUMULATIONS...9 TO 16 INCHES BY NOON ON SUNDAY. * WIND/VISIBILITY...WEST WINDS AT 20 TO 35 MPH WILL BE COMMON... WITH GUSTS TO AROUND 70 MPH ON THE HIGHER RIDGES AND PASSES. NEAR BLIZZARD CONDITIONS ARE EXPECTED SATURDAY NIGHT. * IMPACTS...ROADWAYS GENERALLY ABOVE 10 THOUSAND FEET WILL BECOME SNOW COVERED AND DRIFTED OVER SATURDAY NIGHT. ROAD CLOSURES ARE POSSIBLE...ESPECIALLY ON THE LESS TRAVELED ROADS. 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. && $$ BAKER COZ033-034-161300- /O.CON.KBOU.WW.Y.0027.131116T1900Z-131117T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS... BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE... EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL... INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS... WILLIAMS FORK MOUNTAINS...WINTER PARK 955 PM MST FRI NOV 15 2013 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON SATURDAY TO 11 AM MST SUNDAY... * TIMING...SNOW WILL INCREASE SATURDAY AFTERNOON AND CONTINUE SATURDAY NIGHT...THEN DIMINISH SUNDAY MORNING. * SNOW ACCUMULATIONS...7 TO 14 INCHES BY NOON ON SUNDAY. * WIND/VISIBILITY...WEST WINDS AT 20 TO 40 MPH WILL BE COMMON. GUSTS TO 75 MPH CAN BE EXPECTED ABOVE TIMBERLINE. NEAR BLIZZARD CONDITIONS ARE ALSO EXPECTED IN HIGHER AREAS SATURDAY NIGHT. * IMPACTS...ROADS WILL BECOME SNOWPACKED AND TRAVEL WILL BE DIFFICULT. DRIFTING MAY CAUSE ROAD CLOSURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ BAKER
183 WWUS45 KBOU 161109 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 409 AM MST SAT NOV 16 2013 ...SNOW AND STRONG GUSTY WINDS HEADING FOR THE NORTH CENTRAL MOUNTAINS OF COLORADO... .A FAST MOVING PACIFIC STORM SYSTEM WILL DROP DOWN ACROSS NORTHERN COLORADO TODAY AND TONIGHT BRINGING SNOW TO THE NORTH CENTRAL MOUNTAINS. SNOWFALL IS EXPECTED TO INCREASE THIS AFTERNOON...AND BECOME HEAVY AT TIMES ABOVE TIMBERLINE AND ON WEST FACING SLOPES THIS EVENING. SNOW WILL ALSO BE ACCOMPANIED BY STRONG WEST WINDS RESULTING IN BLOWING AND DRIFTING SNOW ON THE HIGH MOUNTAIN PASSES. SNOWFALL IS EXPECTED TO GRADUALLY DIMINISH BY SUNDAY MORNING AS THE STORM SYSTEM EXITS THE STATE. HOWEVER STRONG...COLD NORTHWEST WINDS WILL CONTINUE TO PRODUCE AREAS OF BLOWING SNOW POSSIBLY CREATING NEAR BLIZZARD CONDITIONS ABOVE 10000 FEET. COZ031-161915- /O.CON.KBOU.WS.W.0012.131116T1900Z-131117T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 409 AM MST SAT NOV 16 2013 ...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON TODAY TO 11 AM MST SUNDAY... * TIMING...SNOWFALL WILL INCREASE THIS AFTERNOON AND CONTINUE TONIGHT...THEN DIMINISH SUNDAY MORNING. * TOTAL SNOW ACCUMULATIONS...8 TO 16 INCHES BY NOON ON SUNDAY. * WIND/VISIBILITY...WEST WINDS AT 20 TO 35 MPH WILL BE COMMON... WITH GUSTS TO AROUND 60 MPH ON THE HIGHER RIDGES AND PASSES. NEAR BLIZZARD CONDITIONS ARE EXPECTED TONIGHT. * IMPACTS...ROADWAYS GENERALLY ABOVE 10 THOUSAND FEET WILL BECOME SNOW COVERED AND DRIFTED OVER TONIGHT. ROAD CLOSURES ARE POSSIBLE...ESPECIALLY ON THE LESS TRAVELED ROADS. 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. && $$ COZ033-034-161915- /O.CON.KBOU.WW.Y.0027.131116T1900Z-131117T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS... BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE... EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL... INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS... WILLIAMS FORK MOUNTAINS...WINTER PARK 409 AM MST SAT NOV 16 2013 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 11 AM MST SUNDAY... * TIMING...SNOW WILL INCREASE THIS AFTERNOON AND CONTINUE TONIGHT...THEN DIMINISH SUNDAY MORNING. * SNOW ACCUMULATIONS...7 TO 14 INCHES BY NOON ON SUNDAY. * WIND/VISIBILITY...WEST WINDS AT 20 TO 40 MPH WILL BE COMMON. GUSTS TO 75 MPH CAN BE EXPECTED ABOVE TIMBERLINE. NEAR BLIZZARD CONDITIONS ARE ALSO EXPECTED IN HIGHER AREAS TONIGHT. * IMPACTS...ROADS WILL BECOME SNOWPACKED AND TRAVEL WILL BE DIFFICULT TONIGHT. DRIFTING MAY CAUSE ROAD CLOSURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
223 WWUS45 KBOU 161830 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 1130 AM MST SAT NOV 16 2013 ...SNOW AND STRONG WINDS MOVING INTO THE NORTH CENTRAL MOUNTAINS OF COLORADO... .A FAST MOVING PACIFIC STORM SYSTEM WILL MOVE ACROSS NORTHERN COLORADO TODAY AND TONIGHT. SNOW WILL INCREASE OVER THE MOUNTAIN THIS AFTERNOON...AND BECOME HEAVY AT TIMES ABOVE TIMBERLINE AND ON WEST FACING SLOPES THIS EVENING. SNOW WILL ALSO BE ACCOMPANIED BY STRONG WEST WINDS RESULTING IN WIDESPREAD BLOWING AND DRIFTING SNOW. BLIZZARD CONDITIONS ARE POSSIBLE ON THE HIGHER MOUNTAIN HIGHWAYS. SNOWFALL WILL DIMINISH BY SUNDAY MORNING AS THE STORM SYSTEM EXITS THE STATE. HOWEVER STRONG...COLD NORTHWEST WINDS WILL CONTINUE TO PRODUCE EXTENSIVE BLOWING SNOW IN HIGHER AREAS. COZ031-170400- /O.CON.KBOU.WS.W.0012.131116T1900Z-131117T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 1130 AM MST SAT NOV 16 2013 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY... * TIMING...SNOWFALL WILL BE HEAVY AT TIMES TONIGHT...THEN DIMINISH SUNDAY MORNING. * TOTAL SNOW ACCUMULATIONS...8 TO 16 INCHES BY NOON ON SUNDAY. * WIND/VISIBILITY...WEST WINDS AT 20 TO 35 MPH WILL BE COMMON... WITH GUSTS TO AROUND 60 MPH ON THE HIGHER RIDGES AND PASSES. NEAR BLIZZARD CONDITIONS ARE EXPECTED TONIGHT. * IMPACTS...ROADWAYS WILL BECOME SNOW COVERED WITH EXTENSIVE BLOWING AND DRIFTING SNOW AT HIGHER ELEVATIONS TONIGHT. LESS TRAVELED ROADS MAY BECOME IMPASSABLE. 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. CONSIDER DELAYING UNNECESSARY TRAVEL. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ030-032-170400- /O.EXB.KBOU.WW.Y.0027.131116T2100Z-131117T1200Z/ JACKSON COUNTY BELOW 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...GOULD...NORTH PARK...RAND...SPICER... WALDEN...DILLON...FRASER...GRANBY...GRAND LAKE... HOT SULPHUR SPRINGS...KREMMLING 1130 AM MST SAT NOV 16 2013 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 AM MST SUNDAY... THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 5 AM MST SUNDAY. * TIMING...SNOW WILL INCREASE THIS AFTERNOON AND CONTINUE TONIGHT...DIMINISHING EARLY SUNDAY MORNING. * SNOW ACCUMULATIONS...4 TO 8 INCHES. * WIND/VISIBILITY...WEST WINDS AT 20 TO 30 MPH WILL BE COMMON WITH GUSTS AS HIGH AS 50 MPH PRODUCING EXTENSIVE BLOWING AND DRIFTING SNOW TONIGHT. * IMPACTS...ROADS WILL BECOME SNOWPACKED AND TRAVEL WILL BE DIFFICULT TONIGHT DUE TO LOW VISIBILITIES AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ033-034-170400- /O.CON.KBOU.WW.Y.0027.131116T1900Z-131117T1800Z/ 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 1130 AM MST SAT NOV 16 2013 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY... * TIMING...SNOW WILL INCREASE THIS AFTERNOON AND CONTINUE TONIGHT...THEN DIMINISH SUNDAY MORNING. * SNOW ACCUMULATIONS...7 TO 14 INCHES BY NOON ON SUNDAY. * WIND/VISIBILITY...WEST WINDS AT 20 TO 40 MPH WILL BE COMMON. GUSTS OF 60 TO 90 MPH CAN BE EXPECTED ABOVE TIMBERLINE. NEAR BLIZZARD CONDITIONS ARE EXPECTED IN HIGHER AREAS TONIGHT...WITH EXTENSIVE BLOWING AND DRIFTING SNOW IN THE MOUNTAIN VALLEYS. * IMPACTS...ROADS WILL BECOME SNOWPACKED AND TRAVEL WILL BE DIFFICULT TONIGHT. DRIFTING MAY CAUSE ROAD CLOSURES. 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. && $$ GIMMESTAD
553 WWUS45 KBOU 162251 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 351 PM MST SAT NOV 16 2013 ...SNOW AND WINDS INCREASING OVER THE NORTH CENTRAL MOUNTAINS OF COLORADO... .A MOIST AND WINDY STORM SYSTEM WILL MOVE ACROSS NORTHERN COLORADO TONIGHT...BRINGING MODERATE TO HEAVY SNOW. THE SNOW WILL ALSO BE ACCOMPANIED BY STRONG WEST WINDS RESULTING IN WIDESPREAD BLOWING AND DRIFTING SNOW. BLIZZARD CONDITIONS ARE POSSIBLE ON THE HIGHER MOUNTAIN HIGHWAYS. SNOWFALL WILL DIMINISH BY SUNDAY MORNING AS THE STORM SYSTEM EXITS THE STATE. HOWEVER STRONG...COLD NORTHWEST WINDS WILL CONTINUE TO PRODUCE EXTENSIVE BLOWING SNOW IN HIGHER AREAS. AS OF LATE AFTERNOON SNOWFALL AMOUNTS OF 1 TO 4 INCHES WERE ALREADY REPORTED OVER THE NORTHERN COLORADO MOUNTAINS WITH THE HIGHEST AMOUNTS FROM ROCKY MOUNTAIN NATIONAL PARK NORTHWARD. WINDS WERE GENERALLY IN THE 20 TO 40 MPH RANGE...BUT GUSTS AS HIGH AS 69 MPH HAD ALREADY BEEN REPORTED ABOVE TIMBERLINE NEAR BERTHOUD PASS. COZ031-170700- /O.CON.KBOU.WS.W.0012.000000T0000Z-131117T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 351 PM MST SAT NOV 16 2013 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY... * TIMING...SNOWFALL WILL BE HEAVY AT TIMES TONIGHT...THEN DIMINISH SUNDAY MORNING. * TOTAL SNOW ACCUMULATIONS...8 TO 16 INCHES BY NOON ON SUNDAY. * WIND/VISIBILITY...WEST WINDS AT 20 TO 35 MPH WILL BE COMMON... WITH GUSTS TO AROUND 60 MPH ON THE HIGHER RIDGES AND PASSES. NEAR BLIZZARD CONDITIONS ARE EXPECTED TONIGHT. * IMPACTS...ROADWAYS WILL BECOME SNOW COVERED WITH EXTENSIVE BLOWING AND DRIFTING SNOW AT HIGHER ELEVATIONS TONIGHT. LESS TRAVELED ROADS MAY BECOME IMPASSABLE. 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. CONSIDER DELAYING UNNECESSARY TRAVEL. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ033-034-170700- /O.CON.KBOU.WW.Y.0027.000000T0000Z-131117T1800Z/ 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 351 PM MST SAT NOV 16 2013 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY... * TIMING...SNOW WILL BE HEAVY AT TIMES TONIGHT...THEN DIMINISH SUNDAY MORNING. * SNOW ACCUMULATIONS...6 TO 12 INCHES BY NOON ON SUNDAY. * WIND/VISIBILITY...WEST WINDS AT 20 TO 40 MPH WILL BE COMMON. GUSTS OF 60 TO 90 MPH CAN BE EXPECTED ABOVE TIMBERLINE. NEAR BLIZZARD CONDITIONS ARE EXPECTED IN HIGHER AREAS TONIGHT... WITH EXTENSIVE BLOWING AND DRIFTING SNOW IN THE MOUNTAIN VALLEYS. * IMPACTS...ROADS WILL BECOME SNOWPACKED AND TRAVEL WILL BE DIFFICULT TONIGHT. DRIFTING MAY CAUSE ROAD CLOSURES. 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. && $$ COZ030-032-170700- /O.CON.KBOU.WW.Y.0027.000000T0000Z-131117T1200Z/ JACKSON COUNTY BELOW 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...GOULD...NORTH PARK...RAND...SPICER... WALDEN...DILLON...FRASER...GRANBY...GRAND LAKE... HOT SULPHUR SPRINGS...KREMMLING 351 PM MST SAT NOV 16 2013 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY... * TIMING...SNOW WILL CONTINUE THIS EVENING...DIMINISHING EARLY SUNDAY MORNING. * SNOW ACCUMULATIONS...4 TO 8 INCHES. * WIND/VISIBILITY...WEST WINDS AT 20 TO 30 MPH WILL BE COMMON WITH GUSTS AS HIGH AS 50 MPH PRODUCING EXTENSIVE BLOWING AND DRIFTING SNOW TONIGHT. * IMPACTS...ROADS WILL BECOME SNOWPACKED AND TRAVEL WILL BE DIFFICULT TONIGHT DUE TO LOW VISIBILITIES AND DRIFTING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ GIMMESTAD
012 WWUS45 KBOU 170350 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 850 PM MST SAT NOV 16 2013 ...SNOW AND WINDS CONTINUE OVER THE NORTH CENTRAL MOUNTAINS OF COLORADO TONIGHT... .A MOIST AND WINDY STORM SYSTEM WILL MOVE ACROSS NORTHERN COLORADO TONIGHT...BRINGING MODERATE TO HEAVY SNOW AT TIMES. THE SNOW WILL ALSO BE ACCOMPANIED BY STRONG WEST WINDS RESULTING IN WIDESPREAD BLOWING AND DRIFTING SNOW. BLIZZARD CONDITIONS ARE POSSIBLE ON THE HIGHER MOUNTAIN HIGHWAYS. SNOWFALL WILL DIMINISH BY SUNDAY MORNING AS THE STORM SYSTEM EXITS THE STATE. HOWEVER STRONG... COLD NORTHWEST WINDS WILL CONTINUE TO PRODUCE EXTENSIVE BLOWING SNOW IN HIGHER AREAS. AS OF THIS EVENING...WINDS WERE INCREASING OVER THE HIGH MOUNTAIN PASSES WITH SPEEDS IN THE 20 TO 35 MPH RANGE WITH GUSTS AS HIGH AS 65 MPH. THE HEAVIER SNOW BANDS HAVE SHIFTED A BIT SOUTH...NOW OVER THE INTERSTATE 70 CORRIDOR AND PARK COUNTY. COZ031-171300- /O.CON.KBOU.WS.W.0012.000000T0000Z-131117T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 850 PM MST SAT NOV 16 2013 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY... * TIMING...SNOWFALL WILL BE HEAVY AT TIMES TONIGHT...THEN DIMINISH SUNDAY MORNING. * TOTAL SNOW ACCUMULATIONS...8 TO 16 INCHES BY NOON ON SUNDAY. * WIND/VISIBILITY...WEST WINDS AT 20 TO 35 MPH WILL BE COMMON... WITH GUSTS TO AROUND 60 MPH ON THE HIGHER RIDGES AND PASSES. NEAR BLIZZARD CONDITIONS ARE EXPECTED TONIGHT. * IMPACTS...ROADWAYS WILL BECOME SNOW COVERED WITH EXTENSIVE BLOWING AND DRIFTING SNOW AT HIGHER ELEVATIONS TONIGHT. LESS TRAVELED ROADS MAY BECOME IMPASSABLE. 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. CONSIDER DELAYING UNNECESSARY TRAVEL. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ033-034-171300- /O.CON.KBOU.WW.Y.0027.000000T0000Z-131117T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS... BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE... EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL... INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS... WILLIAMS FORK MOUNTAINS...WINTER PARK 850 PM MST SAT NOV 16 2013 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST SUNDAY... * TIMING...SNOW WILL BE HEAVY AT TIMES TONIGHT...THEN DIMINISH SUNDAY MORNING. * SNOW ACCUMULATIONS...6 TO 12 INCHES BY NOON ON SUNDAY. * WIND/VISIBILITY...WEST WINDS AT 20 TO 40 MPH WILL BE COMMON. GUSTS OF 60 TO 90 MPH CAN BE EXPECTED ABOVE TIMBERLINE. NEAR BLIZZARD CONDITIONS ARE EXPECTED IN HIGHER AREAS TONIGHT... WITH EXTENSIVE BLOWING AND DRIFTING SNOW IN THE MOUNTAIN VALLEYS. * IMPACTS...ROADS WILL BECOME SNOWPACKED AND TRAVEL WILL BE DIFFICULT TONIGHT. DRIFTING MAY CAUSE ROAD CLOSURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ COZ030-032-171200- /O.CON.KBOU.WW.Y.0027.000000T0000Z-131117T1200Z/ JACKSON COUNTY BELOW 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...GOULD...NORTH PARK...RAND...SPICER... WALDEN...DILLON...FRASER...GRANBY...GRAND LAKE... HOT SULPHUR SPRINGS...KREMMLING 850 PM MST SAT NOV 16 2013 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY... * TIMING...SNOW WILL CONTINUE THIS EVENING...DIMINISHING EARLY SUNDAY MORNING. * SNOW ACCUMULATIONS...4 TO 8 INCHES. * WIND/VISIBILITY...WEST WINDS AT 15 TO 25 MPH WILL BE COMMON WITH GUSTS AS HIGH AS 40 MPH PRODUCING EXTENSIVE BLOWING AND DRIFTING SNOW TONIGHT. * IMPACTS...ROADS WILL BECOME SNOWPACKED AND TRAVEL WILL BE DIFFICULT TONIGHT DUE TO LOW VISIBILITIES AND DRIFTING SNOW. 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. && $$
195 WWUS45 KBOU 171153 WSWBOU URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE DENVER/BOULDER CO 453 AM MST SUN NOV 17 2013 ...SNOW AND WINDS CONTINUE OVER THE NORTH CENTRAL MOUNTAINS OF COLORADO THIS MORNING... .SNOW CONTINUES FALLING OVER THE NORTH CENTRAL MOUNTAINS THIS MORNING AS STRONG WINDS GENERATE SNOW ON THE WINDWARD EXPOSURES THIS MORNING. STRONG WINDS AND SNOW FALLING MODERATE AT TIMES HAS PRODUCED QUITE A BIT OF BLOWING AND DRIFTING SNOW AT ELEVATIONS ABOVE 10 THOUSAND FEET. SNOWFALL WILL BEGIN DIMINISHING LATER THIS MORNING AS THE STORM SYSTEM EXITS THE STATE. HOWEVER...AS THE SNOW TAPERS OFF...CONTINUING WINDS WILL CONTINUE TO PRODUCE EXTENSIVE BLOWING SNOW IN HIGHER AREAS. SNOW HAS DECREASED ACROSS NORTH PARK AND MIDDLE PARK...SO THE WINTER WEATHER ADVISORY FOR THOSE VALLEYS WILL EXPIRE AT 5 AM. COZ030-032-171300- /O.EXP.KBOU.WW.Y.0027.000000T0000Z-131117T1200Z/ JACKSON COUNTY BELOW 9000 FEET- GRAND AND SUMMIT COUNTIES BELOW 9000 FEET- INCLUDING THE CITIES OF...GOULD...NORTH PARK...RAND...SPICER... WALDEN...DILLON...FRASER...GRANBY...GRAND LAKE... HOT SULPHUR SPRINGS...KREMMLING 453 AM MST SUN NOV 17 2013 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... WEST WINDS WILL CONTINUE AT 20 TO 30 MPH THIS MORNING...BUT NO ADDITIONAL SNOW ACCUMULATIONS ARE EXPECTED. $$ COZ031-171800- /O.CON.KBOU.WS.W.0012.000000T0000Z-131117T1800Z/ WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF... EAST SLOPES PARK AND NORTHERN GORE RANGES...GORE PASS... RABBIT EARS PASS 453 AM MST SUN NOV 17 2013 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * TIMING...LIGHT TO MODERATE SNOWFALL THIS MORNING WILL BEGIN TAPERING OFF THROUGH THE AFTERNOON. AN ADDITIONAL 1 TO 3 INCHES OF SNOW WILL OCCUR THIS MORNING. * TOTAL SNOW ACCUMULATIONS...8 TO 16 INCHES BY NOON TODAY. * WIND/VISIBILITY...WEST WINDS AT 20 TO 35 MPH WILL BE COMMON... WITH GUSTS TO AROUND 60 MPH ON THE HIGHER RIDGES AND PASSES. NEAR BLIZZARD CONDITIONS ARE POSSIBLE THIS MORNING. * IMPACTS...ROADWAYS WILL BE SNOW COVERED WITH EXTENSIVE BLOWING AND DRIFTING SNOW AT HIGHER ELEVATIONS THIS MORNING. LESS TRAVELED ROADS MAY BE IMPASSABLE. 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. CONSIDER DELAYING UNNECESSARY TRAVEL. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ COZ033-034-171800- /O.CON.KBOU.WW.Y.0027.000000T0000Z-131117T1800Z/ SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/ NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET- SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/ GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE 9000 FEET- INCLUDING THE CITIES OF...CAMERON PASS... LARAMIE AND MEDICINE BOW MOUNTAINS...RABBIT EARS RANGE... ROCKY MOUNTAIN NATIONAL PARK...WILLOW CREEK PASS... BERTHOUD PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE... EAST SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL... INDIAN PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS... WILLIAMS FORK MOUNTAINS...WINTER PARK 453 AM MST SUN NOV 17 2013 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * TIMING...LIGHT TO MODERATE SNOW THIS MORNING WILL TAPER OFF DURING THE AFTERNOON HOURS. UP TO 3 INCHES OF ADDITIONAL SNOW IS POSSIBLE THIS MORNING. * SNOW ACCUMULATIONS...6 TO 12 INCHES BY NOON TODAY. * WIND/VISIBILITY...WEST WINDS AT 20 TO 40 MPH WILL BE COMMON. GUSTS OF 60 TO 90 MPH CAN BE EXPECTED ABOVE TIMBERLINE. NEAR BLIZZARD CONDITIONS ARE EXPECTED IN HIGHER AREAS THIS MORNING. * IMPACTS...ROADS MAY BE SNOWPACKED WITH DIFFICULT TRAVEL CONDITIONS THIS MORNING. DRIFTING SNOW MAY CAUSE SOME ROAD CLOSURES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$
What forecasters said that day
The local office's own words before this winter storm warning 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 winter storm warning went out at Nov 15, 3:28 PM MST, 18 minutes earlier.
Area forecast discussion, Nov 15, 3:28 PM MST, 18 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE DENVER/BOULDER CO 328 PM MST FRI NOV 15 2013 .SHORT TERM...CLOUDS HAVE ROLLED INTO THE MOUNTAINS OF THE CWA AT THIS TIME. THE FOOTHILLS AND PLAINS ARE NEARLY CLOUD FREE. THE RADAR IS SHOWING SOME ECHOES ALONG THE JACKSON/LARIMER COUNTY BORDERS. WEST-SOUTHWESTERLY FLOW ALOFT WILL COVER THE CWA THIS EVENING. A BROAD UPPER TROUGH WITH A COUPLE PIECES OF ENERGY WILL MOVE INTO COLORADO BEFORE 12Z SATURDAY MORNING. THE UPPER TROUGH AXIS IS TO BE OVER THE WESTERN CWA AT 00Z SATURDAY AFTERNOON LATE. THERE IS SOME UPWARD QG MOTION PROGGED THIS EVENING...THEN A BRIEF SHOT OF DOWNWARD ENERGY THROUGH SATURDAY MORNING...THEN UPWARD MOTION AGAIN SATURDAY AFTERNOON. FOR MOISTURE TONIGHT AND SATURDAY...IT IS PRETTY DEEP OVER THE MOUNTAINS...BUT ONLY SOME MID AND UPPER LEVEL MOISTURE FOR THE PLAINS HERE AND THERE. MOISTURE GETS PRETTY DEEP IN THE MOUNTAINS SATURDAY AFTERNOON. THE QPF FIELDS HAVE LIMITED MEASURABLE PRECIPITATION IN THE MOUNTAINS TONIGHT THROUGH SATURDAY MORNING. BY SATURDAY AFTERNOON...THERE IS MORE INDICATED FOR THE MOUNTAINS. THE PLAINS ARE DRY. SO WILL GO WITH MOUNTAIN POPS IN 50-70% RANGE THIS EVENING...A BIT LOWER OVERNIGHT AND SATURDAY MORNING...THEN 70-90%S SATURDAY AFTERNOON. WILL START THE APPROPRIATE HIGHLIGHTS IN THE HIGH MOUNTAINS AT 18Z SATURDAY AS PER THE LONG TERM FORECASTER. FOR TEMPERATURES...THE NAM HAS SATURDAY'S HIGHS COOLER THAN TODAY...WITH THE GFS SIMILAR TO TODAY. WILL SPLIT THE DIFFERENCE. .LONG TERM...MAIN TROUGH AXIS WILL MOVE THROUGH EARLY SUNDAY. QUICK SHOT OF LIFT WITH LOTS OF WIND ALOFT...THEN STRONG WARM ADVECTION ALOFT AND SHARP SUBSIDENCE WILL ARRIVE BY MIDDAY. WIND THREAT IS MAINLY A BRUTE FORCE EFFORT...BUT WITH AS MUCH AS 80 KNOTS AT MOUNTAINTOP LEVEL AND COLD ADVECTION ALOFT DURING THE NIGHT...IT WILL NOT TAKE MUCH TO MIX DOWN VERY STRONG GUSTS INTO THE HIGHER/WIND PRONE FOOTHILLS. LOTS OF SHEAR FOR A MOUNTAIN WAVE...BUT THERE MAY BE A WINDOW OF OPPORTUNITY AS THE WARM ADVECTION ALOFT KICKS IN BEHIND THE TROUGH SUNDAY MORNING. I WOULD NOT BE SURPRISED TO SEE AN AMPLIFIED WAVE ONLY IN THE BOULDER/GOLDEN FOOTHILLS AREA AND NOT ANYWHERE ELSE...BUT WE CANNOT IGNORE THE AMOUNT OF FLOW THAT IS THERE TO WORK WITH...IF THERE IS AMPLIFICATION THE WINDS COULD BE REALLY STRONG. AS FOR THE SNOW...AGAIN THE MAIN THING GOING FOR THIS SYSTEM IS THE WIND SPEEDS. SNOW AMOUNTS LOOK MARGINAL FOR A WARNING WITH THE BEST SHOT SATURDAY NIGHT. WENT AHEAD WITH A WARNING FOR ZONE 31...RABBIT EARS PASS AREA...AND AN ADVISORY FOR THE REST OF OUR HIGH MOUNTAINS. WINDS SHOULD CAUSE PLENTY OF BLOWING SNOW IN AREAS WITH DECENT SNOW COVER...WHICH WILL INCREASE DURING THE STORM. WITH THE WARM ADVECTION EXPECT QUICK DRYING ON SUNDAY...STILL A SHALLOW CLOUD LAYER WEST OF THE FRONT RANGE BUT WITH THE SUBSIDENCE PROBABLY NOT MUCH SNOWFALL. FOR THE EARLY PART OF THE WEEK...PRETTY DRY WITH FAIRLY LIGHT WESTERLY FLOW ALOFT. BETTER AGREEMENT ON A TROUGH IN THE THURSDAY/FRIDAY TIME PERIOD BUT BIG DETAIL DIFFERENCES. SOME OF THE ECMWF RUNS BRING A STRONG PUSH OF MUCH COLDER AIR ON WEDNESDAY OR THURSDAY WITH LIGHT OVERRUNNING SNOW FOR 24-36 HOURS. OTHER EC RUNS AND MOST OF THE GFS IS MORE BENIGN. MODEL CONSENSUS IS FINE ON THIS...COLDER THU/FRI WITH A SLIGHT CHANCE OF RAIN/SNOW FOR THE PLAINS. && .AVIATION...NORMAL DIURNAL WIND TRENDS ARE LIKELY OVERNIGHT WITH A TAD OF ENHANCED DOWNSLOPING THROWN IN. THERE COULD WEAKER SOUTHEASTERLIES ON SATURDAY AFTER 15Z. THERE WILL BE NO CEILING ISSUES FOR THE NEXT 24 HOURS. && .BOU WATCHES/WARNINGS/ADVISORIES... HIGH WIND WATCH FROM SATURDAY AFTERNOON THROUGH SUNDAY MORNING FOR COZ035>039. && SHORT TERM...GIMMESTAD LONG TERM....RJK AVIATION...GIMMESTAD
Hazardous weather outlook, Nov 15, 11:07 AM MST, 4 hours 39 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DENVER/BOULDER CO 1107 AM MST FRI NOV 15 2013 COZ030>051-161815- 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- 1107 AM MST FRI NOV 15 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL COLORADO. .DAY ONE...TODAY AND TONIGHT SCATTERED SNOW SHOWERS WILL DEVELOP OVER THE MOUNTAINS LATER THIS AFTERNOON...SNOW WILL BECOME LIKELY OVERNIGHT IN THE HIGH MOUNTAINS. SNOWFALL ACCUMULATIONS WILL BE 1 TO 4 INCHES BY SATURDAY DAWN. THERE WILL BE A CHANCE OF SNOW OVER THE HIGH VALLEYS OVERNIGHT...AND A SLIGHT CHANCE IN THE HIGHER FOOTHILLS. THE PLAINS WILL BE DRY TODAY AND TONIGHT. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY WINDS ALOFT OVER COLORADO WILL BE INCREASING ON SATURDAY AS ANOTHER WEATHER DISTURBANCE APPROACHES COLORADO FROM THE PACIFIC NORTHWEST. SNOW WILL INCREASE AGAIN OVER THE MOUNTAINS BY SATURDAY AFTERNOON AS SURFACE WINDS ALSO BEGIN INCREASING. THE SNOW WILL LAST INTO SUNDAY...WITH ADDITIONAL ACCUMULATIONS OF 6-12 INCHES LIKELY BY SUNDAY AFTERNOON. FROM THE HIGHER MOUNTAINS DOWN ACROSS THE FRONT RANGE FOOTHILLS WINDS WILL BECOME STRONG. A HIGH WIND WATCH WILL BE IN EFFECT FOR SATURDAY NIGHT AND SUNDAY MORNING AS WINDS INCREASE TO 30 TO 50 MPH WITH GUSTS TO 75 MPH POSSIBLE. ON THE PLAINS THERE WILL JUST BE A SLIGHT CHANCE OF LIGHT RAIN OR SNOW SHOWERS SATURDAY NIGHT OR EARLY SUNDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT. RJK/CMG
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 15, 4:43 AM MST | High Wind Watch | BOU | Boulder, Broomfield, Clear Creek, Douglas, Gilpin, Jefferson and 3 more | 31 hr |
| Nov 15, 3:46 PM MST | Winter Weather Advisory | BOU | Boulder, Clear Creek, Gilpin, Grand, Jackson, Jefferson and 3 more | 43 hr |
Nearby
Winter Storm Warnings in Colorado, 2013Every winter storm warning in 2013
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.