Alert archive / Colorado / Snow Advisories in 2007
Snow Advisory 6, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this snow advisory at Mar 24, 2007, 4:58 AM MDT for Park County, Colorado. It was in force for 13 hr.
The area
The counties it named.
The facts
- Issued
- Mar 24, 2007, 4:58 AM MDT (10:58 UTC)
- Expired
- Mar 24, 2007, 6:00 PM MDT
- In force
- 13 hr
- Issued by
- NWS Denver/Boulder, CO
County Park County, CO
The radar
The Denver radar (KFTG), 125 km from the middle of the area, began a volume at 10:59 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 00:00Z, 11.0 hours before the alert went out and 229 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
- 18 J/kg
- Mixed-layer CIN
- -47 J/kg
- Mixed-layer LCL
- 1866 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- -54 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this snow advisory 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 snow advisory went out at Mar 24, 3:55 AM MDT, 1 hour 3 minutes earlier.
Area forecast discussion, Mar 24, 3:55 AM MDT, 1 hour 3 minutes before
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</html>Hazardous weather outlook, Mar 23, 10:58 AM MDT, 18 hours before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DENVER CO 1058 AM MDT FRI MAR 23 2007 COZ030>051-241200- 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- 1058 AM MDT FRI MAR 23 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL COLORADO. .DAY ONE...TODAY AND TONIGHT SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WILL DEVELOP ACROSS THE AREA THIS AFTERNOON. SOME OF THE STORMS ACROSS THE FAR NORTHEAST PLAINS COULD PRODUCE BRIEF HEAVY RAIN...GUSTY WINDS AND HAIL. THE RAIN WILL BE MIXED WITH SNOW ABOVE 10 THOUSAND FEET. THE SHOWERS WILL BECOME MORE NUMEROUS TONIGHT WITH A FEW THUNDERSTORMS LINGERING AFTER MIDNIGHT OVER THE FAR NORTHEAST PLAINS. THE SNOW LEVEL WILL LOWER TO AROUND 8000 FEET OVERNIGHT...WITH ACCUMULATIONS UP TO 4 INCHES POSSIBLE OVER THE MOUNTAINS AND FOOTHILLS BY SATURDAY MORNING. A STRONG STORM SYSTEM WILL CONTINUE TO MOVE NORTHEAST TOWARD COLORADO...SPREADING MOISTURE ACROSS THE AREA. IN ADDITION... A COLD FRONT WILL PUSH SOUTH THROUGH NORTHEAST COLORADO THIS EVENING...WITH UPSLOPE FLOW DEVELOPING IN ITS WAKE. .DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY SHOWERS AND THUNDERSTORMS WILL BECOME MORE WIDESPREAD ACROSS THE FORECAST AREA SATURDAY. THE SNOW LEVEL IS EXPECTED TO VARY BETWEEN 7500 AND 8500 FEET SATURDAY...WITH ADDITIONAL SNOW ACCUMULATIONS OF 2 TO 7 INCHES POSSIBLE IN THE HIGHER FOOTHILLS AND MOUNTAINS. PRECIPITATION IS THEN EXPECTED TO DECREASE SATURDAY NIGHT EXCEPT IN THE MOUNTAINS WHERE A FEW MORE INCHES OF SNOW WILL BE POSSIBLE OVERNIGHT. DRY CONDITIONS ARE EXPECTED FROM SUNDAY THROUGH TUESDAY. THE NEXT STORM SYSTEM WILL BRING A CHANCE OF PRECIPITATION TO THE FORECAST AREA WEDNESDAY AND THURSDAY. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT.
The office that day
Everything else NWS Denver/Boulder, CO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 23, 7:04 PM MDT | Severe Thunderstorm Warning | BOU | Morgan | 48 min |
| Mar 24, 4:22 PM MDT | Tornado Warning | BOU | Phillips | 38 min |
| Mar 24, 4:59 PM MDT | Tornado Warning | BOU | Phillips, Sedgwick | 48 min |
Nearby
Snow Advisories in Colorado, 2007Every snow advisory in 2007
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.