Alert archive / Colorado / Freeze Warnings in 2013
Freeze Warning 1, NWS Denver/Boulder, CO
NWS Denver/Boulder, CO issued this freeze warning at Oct 4, 2013, 6:06 AM MDT for 16 counties in Colorado. It took effect at Oct 4, 2013, 9:00 PM MDT. It was in force for 12 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
- Oct 4, 2013, 6:06 AM MDT (12:06 UTC)
- In effect from
- Oct 4, 2013, 9:00 PM MDT
- Expired
- Oct 5, 2013, 9:00 AM MDT
- In force
- 12 hr
- Issued by
- NWS Denver/Boulder, CO
Counties Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Jefferson County, CO, Larimer County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO
The radar
The Denver radar (KFTG), 42 km from the middle of the area, began a volume at 12:10 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 (KDEN), launched 12:00Z, 0.1 hours before the alert went out and 80 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
- 556 m above ground
- 0-6 km bulk shear
- 87 kt
- 0-1 km storm-relative helicity
- -334 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this freeze 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 freeze warning went out at Oct 3, 3:44 PM MDT, 14 hours 22 minutes earlier.
Area forecast discussion, Oct 3, 3:44 PM MDT, 14 hours 22 minutes before
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</html>Hazardous weather outlook, Oct 3, 11:14 AM MDT, 18 hours 52 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE DENVER/BOULDER CO 1114 AM MDT THU OCT 3 2013 COZ030>051-041715- 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- 1114 AM MDT THU OCT 3 2013 ...WINTER STORM WARNING TONIGHT THROUGH FRIDAY AFTERNOON FOR THE NORTHERN MOUNTAINS... ...WINTER STORM WATCH LATE TONIGHT THROUGH FRIDAY AFTERNOON FOR THE NORTHERN FRONT RANGE FOOTHILLS... ...HIGH WIND WATCH IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON FOR THE NORTHEAST PLAINS... ...FREEZE WATCH IN EFFECT FROM FRIDAY EVENING THROUGH SATURDAY MORNING FOR THE URBAN CORRIDOR AND NORTHEAST PLAINS... THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST AND NORTH CENTRAL COLORADO. .DAY ONE...TODAY AND TONIGHT A STORM SYSTEM WILL MOVE INTO NORTHWEST COLORADO BY LATE TONIGHT. AS THIS SYSTEM GETS CLOSER SNOW WILL INCREASE IN THE NORTHERN MOUNTAINS TONIGHT AND WILL BE HEAVY AT TIMES. AT LOWER ELEVATIONS RAIN SHOWERS WILL INCREASE TONIGHT MAINLY FROM DENVER NORTH TO THE WYOMING BORDER AND IN THE NORTHERN FOOTHILLS. THE RAIN WILL CHANGE TO SNOW IN THE NORTHERN FOOTHILLS AFTER MIDNIGHT. SOME SNOW MAY MIX IN WITH THE RAIN TOWARDS SUNRISE OVER NORTHERN AREAS OF THE FRONT RANGE URBAN CORRIDOR. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY THE STORM SYSTEM WILL CONTINUE TO MOVE EASTWARD ACROSS THE FORECAST AREA FRIDAY INTO FRIDAY EVENING...WITH SNOW IN THE HIGH COUNTRY. TOTAL SNOWFALL AMOUNTS IN THE MOUNTAINS NORTH OF INTERSTATE 70 FROM 6 TO 12 INCHES WILL BE POSSIBLE...WITH LOCALLY HIGHER AMOUNTS. IN THE FOOTHILLS OF LARIMER COUNTY...5 TO 10 INCHES OF SNOW WILL BE POSSIBLE THROUGH FRIDAY EVENING. LESSER AMOUNTS ARE EXPECTED IN THE HIGH VALLEYS AND MOUNTAINS AND FOOTHILLS SOUTHWARD TOWARD I-70. OVER NORTHEAST COLORADO THERE WILL BE A GOOD CHANCE OF RAIN... MIXED WITH SNOW AT TIMES...THROUGH THE DAY FRIDAY. STRONG AND GUSTY NORTH TO NORTHWEST WINDS WILL DEVELOP ON FRIDAY AND CONTINUE INTO SATURDAY OVER THE PLAINS. THE WIND WILL BE STRONGEST FRIDAY AFTERNOON ESPECIALLY TOWARDS THE NEBRASKA AND KANSAS BORDERS... WITH GUSTS IN EXCESS OF 60 MPH POSSIBLE. THE SYSTEM WILL EXIT THE REGION FRIDAY NIGHT. CLEARING SKIES WILL LEAD TO FREEZING TEMPERATURES OVER THE URBAN CORRIDOR AND NORTHEAST PLAINS FRIDAY NIGHT THROUGH SATURDAY MORNING. AN UPPER LEVEL RIDGE OF HIGH PRESSURE WILL BRING DRIER AND WARMER CONDITIONS TO THE OUTLOOK AREA FOR THE REST OF THE PERIOD. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT. BARJENBRUCH/COOPER
Nearby
Freeze Warnings in Colorado, 2013Every freeze 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.