Alert archive / Colorado / Freeze Warnings in 2012

Freeze Warning 2, NWS Denver/Boulder, CO

October 5, 201216 counties in Colorado

NWS Denver/Boulder, CO issued this freeze warning at Oct 5, 2012, 5:03 AM MDT for 16 counties in Colorado. It took effect at Oct 6, 2012, 12:00 AM MDT. It was in force for 10 hr. 4 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Oct 5, 2012, 5:03 AM MDT (11:03 UTC)
In effect from
Oct 6, 2012, 12:00 AM MDT
Expired
Oct 6, 2012, 10:00 AM MDT
In force
10 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 11:06 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
Oct 6, 6:30 AM MDTSNOW 1.5Crook, CO
Oct 6, 7:00 AM MDTSNOW 2Sedgwick, CO
Oct 6, 7:00 AM MDTSNOW 2.8Holyoke, CO
Oct 6, 9:05 AM MDTSNOW 4Iliff, CO

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 11.1 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.

Skew-T log-pSkew-T log-p diagram, Denver, CO at 00:00Z on 2012-10-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 00:00Z on 2012-10-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 91 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1589 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
91 m²/s²
0-3 km storm-relative helicity
422 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

612 
WWUS75 KBOU 051103
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
503 AM MDT FRI OCT 5 2012

...FREEZING TEMPERATURES POSSIBLE TONIGHT AND LIKELY FRIDAY
NIGHT...

.TEMPERATURES WILL REMAIN NEAR FREEZING THROUGH THE EARLY
MORNING. ANOTHER COLD FRONT WILL PASS THROUGH THE AREA
TONIGHT...BRINGING EVEN COLDER AIR AND A CHANCE OF SNOW TONIGHT.
BELOW FREEZING TEMPERATURES ARE EXPECTED AGAIN ON SATURDAY NIGHT.

COZ038>051-051915-
/O.UPG.KBOU.FZ.A.0001.121006T0600Z-121006T1600Z/
/O.NEW.KBOU.FZ.W.0002.121006T0600Z-121006T1600Z/
/O.CON.KBOU.FR.Y.0001.000000T0000Z-121005T1500Z/
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-
INCLUDING THE CITIES OF...FORT COLLINS...HEREFORD...LOVELAND...
NUNN...ARVADA...BOULDER...GOLDEN...LAKEWOOD...LONGMONT...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
503 AM MDT FRI OCT 5 2012

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING...
...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM MDT
SATURDAY...

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM MDT
SATURDAY. THE FREEZE WATCH IS NO LONGER IN EFFECT. 

* TIMING...TEMPERATURES WILL REMAIN IN THE LOWER TO MID 30S
  THROUGH MID MORNING. LOW TEMPERATURES TONIGHT WILL BE A FEW
  DEGREES COLDER WITH LOWS IN THE UPPER 20S TO NEAR 30 DEGREES.
  EVEN COLDER TEMPERATURES ARE EXPECTED FOR SATURDAY NIGHT.

* IMPACTS...COLD OVERNIGHT TEMPERATURES WILL BRING AN END TO THE
  GROWING SEASON BY SATURDAY NIGHT. DAMAGE MAY OCCUR TO HOSES AND
  UNPROTECTED IRRIGATION SYSTEMS FRIDAY NIGHT OR SATURDAY NIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE OUTDOOR VEGETATION. IF POSSIBLE...MOVE PLANTS INDOORS
TO PROTECT THEM FROM THE COLD.  OTHERWISE COVER THEM WITH
NEWSPAPERS OR BLANKETS.

&&

$$
6 follow-up statements
435 
WWUS75 KBOU 051105
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
505 AM MDT FRI OCT 5 2012

...FREEZING TEMPERATURES TONIGHT AND SATURDAY NIGHT...

.TEMPERATURES WILL REMAIN NEAR FREEZING THROUGH THE EARLY
MORNING. ANOTHER COLD FRONT WILL PASS THROUGH THE AREA TONIGHT...
BRINGING EVEN COLDER AIR AND A CHANCE OF SNOW TONIGHT. BELOW
FREEZING TEMPERATURES ARE EXPECTED AGAIN ON SATURDAY NIGHT.

COZ038>051-051915-
/O.CON.KBOU.FZ.W.0002.121006T0600Z-121006T1600Z/
/O.CON.KBOU.FR.Y.0001.000000T0000Z-121005T1500Z/
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-
INCLUDING THE CITIES OF...FORT COLLINS...HEREFORD...LOVELAND...
NUNN...ARVADA...BOULDER...GOLDEN...LAKEWOOD...LONGMONT...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
505 AM MDT FRI OCT 5 2012

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING...
...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
10 AM MDT SATURDAY...

* TIMING...TEMPERATURES WILL REMAIN IN THE LOWER TO MID 30S 
  THROUGH MID MORNING. LOW TEMPERATURES TONIGHT WILL BE A FEW 
  DEGREES COLDER WITH LOWS IN THE UPPER 20S TO NEAR 30 DEGREES. 
  EVEN COLDER TEMPERATURES ARE EXPECTED FOR SATURDAY NIGHT. 

* IMPACTS...COLD OVERNIGHT TEMPERATURES WILL BRING AN END TO THE 
  GROWING SEASON BY SATURDAY NIGHT. DAMAGE MAY OCCUR TO HOSES 
  AND UNPROTECTED IRRIGATION SYSTEMS FRIDAY NIGHT OR SATURDAY 
  NIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE OUTDOOR VEGETATION. IF POSSIBLE...MOVE PLANTS INDOORS
TO PROTECT THEM FROM THE COLD.  OTHERWISE COVER THEM WITH
NEWSPAPERS OR BLANKETS.

&&

$$
743 
WWUS75 KBOU 051505
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
905 AM MDT FRI OCT 5 2012

...FREEZING TEMPERATURES TONIGHT AND SATURDAY NIGHT...

.THE COLD AIRMASS WILL REMAIN IN PLACE THROUGH TONIGHT...ALLOW
TEMPERATURES TO DROP TO OR JUST BELOW FREEZING. ANOTHER COLD
FRONT WILL THEN PUSH ACROSS THE AREA SATURDAY MORNING. AFTER
BRINGING SOME SNOW TO THE REGION...SKIES ARE EXPECTED TO GRADUALLY
CLEAR SATURDAY NIGHT ALLOWING TEMPERATURES TO DROP MUCH BELOW
FREEZING.

COZ038>051-060000-
/O.CAN.KBOU.FR.Y.0001.000000T0000Z-121005T1500Z/
/O.CON.KBOU.FZ.W.0002.121006T0600Z-121006T1600Z/
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-
INCLUDING THE CITIES OF...FORT COLLINS...HEREFORD...LOVELAND...
NUNN...ARVADA...BOULDER...GOLDEN...LAKEWOOD...LONGMONT...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
905 AM MDT FRI OCT 5 2012

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
10 AM MDT SATURDAY...
...FROST ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN DENVER HAS CANCELLED THE FROST
ADVISORY THAT WAS IN EFFECT UNTIL 9 AM THIS MORNING.

* TIMING...LOW TEMPERATURES TONIGHT WILL DROP TO THE FREEZING MARK
  OR JUST BELOW.  EVEN COLDER TEMPERATURES ARE EXPECTED FOR
  SATURDAY NIGHT.

* IMPACTS...COLD OVERNIGHT TEMPERATURES WILL BRING AN END TO THE
  GROWING SEASON BY SATURDAY NIGHT. DAMAGE MAY OCCUR TO HOSES AND
  UNPROTECTED IRRIGATION SYSTEMS FRIDAY NIGHT OR SATURDAY NIGHT.
  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE OUTDOOR VEGETATION. IF POSSIBLE...MOVE PLANTS INDOORS
TO PROTECT THEM FROM THE COLD. BLANKETS MAY NOT PROVIDE ENOUGH
PROTECTION FROM THE VERY COLD TEMPERATURES ESPECIALLY SATURDAY NIGHT.

TO PREVENT DAMAGE TO SPRINKLER AND IRRIGATION SYSTEMS...
THOROUGHLY DRAIN THE EXPOSED PORTION.

$$

BARJENBRUCH
364 
WWUS75 KBOU 052059
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
259 PM MDT FRI OCT 5 2012

...FREEZING TEMPERATURES TONIGHT AND SATURDAY NIGHT...

.THE COLD AIRMASS WILL REMAIN IN PLACE THROUGH TONIGHT...ALLOWING TEMPERATURES
TO DROP TO OR JUST BELOW FREEZING. ANOTHER COLD FRONT WILL THEN
PUSH ACROSS THE AREA SATURDAY MORNING. AFTER BRINGING SOME SNOW TO
THE REGION...SKIES ARE EXPECTED TO GRADUALLY CLEAR SATURDAY NIGHT
ALLOWING TEMPERATURES TO DROP INTO THE LOW TO MID 20S.

COZ038>051-060600-
/O.NEW.KBOU.HZ.W.0001.121007T0400Z-121007T1500Z/
/O.CON.KBOU.FZ.W.0002.121006T0600Z-121006T1600Z/
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-
INCLUDING THE CITIES OF...FORT COLLINS...HEREFORD...LOVELAND...
NUNN...ARVADA...BOULDER...GOLDEN...LAKEWOOD...LONGMONT...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
259 PM MDT FRI OCT 5 2012

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
10 AM MDT SATURDAY...
...HARD FREEZE WARNING IN EFFECT FROM 10 PM SATURDAY TO 9 AM MDT
SUNDAY...

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A HARD FREEZE
WARNING...WHICH IS IN EFFECT FROM 10 PM SATURDAY TO 9 AM MDT
SUNDAY. 

* TIMING...LOW TEMPERATURES TONIGHT WILL DROP TO THE FREEZING 
  MARK OR JUST BELOW. EVEN COLDER TEMPERATURES ARE EXPECTED FOR 
  SATURDAY NIGHT. 

* TEMPERATURE...LOWS TONIGHT WILL BE BETWEEN 28 TO 32 DEGREES.
  TEMPERATURES SATURDAY NIGHT WILL BE COLDER...BETWEEN 21 AND 27 DEGREES.

* IMPACTS...COLD OVERNIGHT TEMPERATURES WILL BRING AN END TO THE 
  GROWING SEASON BY SATURDAY NIGHT. DAMAGE MAY OCCUR TO HOSES 
  AND UNPROTECTED IRRIGATION SYSTEMS FRIDAY NIGHT OR SATURDAY 
  NIGHT. UNPROTECTED VEGETATION MAY BE DAMAGED OR KILLED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE OUTDOOR VEGETATION. IF POSSIBLE...MOVE PLANTS INDOORS
TO PROTECT THEM FROM THE COLD. BLANKETS MAY NOT PROVIDE ENOUGH
PROTECTION FROM THE VERY COLD TEMPERATURES ESPECIALLY SATURDAY
NIGHT.

TO PREVENT DAMAGE TO SPRINKLER AND IRRIGATION SYSTEMS...
THOROUGHLY DRAIN THE EXPOSED PORTION.

$$
094 
WWUS75 KBOU 060310
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
910 PM MDT FRI OCT 5 2012

...FREEZING TEMPERATURES TONIGHT AND SATURDAY NIGHT...

.THE COLD AIRMASS WILL REMAIN IN PLACE TONIGHT...ALLOWING
TEMPERATURES TO DROP TO JUST BELOW FREEZING. ANOTHER COLD FRONT
WILL PUSH ACROSS THE AREA SATURDAY MORNING. AFTER BRINGING SOME
SNOW TO THE FORECAST AREA...SKIES ARE EXPECTED TO GRADUALLY CLEAR
SATURDAY NIGHT ALLOWING TEMPERATURES TO DROP INTO THE LOW TO MID
20S.

COZ038>051-061115-
/O.CON.KBOU.FZ.W.0002.121006T0600Z-121006T1600Z/
/O.CON.KBOU.HZ.W.0001.121007T0400Z-121007T1500Z/
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-
INCLUDING THE CITIES OF...FORT COLLINS...HEREFORD...LOVELAND...
NUNN...ARVADA...BOULDER...GOLDEN...LAKEWOOD...LONGMONT...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
910 PM MDT FRI OCT 5 2012

...FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM MDT SATURDAY...
...HARD FREEZE WARNING REMAINS IN EFFECT FROM 10 PM SATURDAY TO
9 AM MDT SUNDAY...

* TIMING...LOW TEMPERATURES TONIGHT WILL DROP TO JUST BELOW THE
  FREEZING MARK.  EVEN COLDER TEMPERATURES ARE EXPECTED FOR
  SATURDAY NIGHT.

* TEMPERATURE...LOWS TONIGHT WILL BE BETWEEN 28 TO 32 DEGREES. 
  TEMPERATURES SATURDAY NIGHT WILL BE COLDER...BETWEEN 21 AND 27 
  DEGREES. 

* IMPACTS...COLD OVERNIGHT TEMPERATURES WILL BRING AN END TO THE
  GROWING SEASON BY SATURDAY NIGHT. DAMAGE MAY OCCUR TO HOSES AND
  UNPROTECTED IRRIGATION SYSTEMS TONIGHT...BUT MORE SO SATURDAY
  NIGHT. UNPROTECTED VEGETATION WILL CERTAINLY FREEZE SATURDAY
  NIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE OUTDOOR VEGETATION. IF POSSIBLE...MOVE PLANTS INDOORS
TO PROTECT THEM FROM THE COLD. BLANKETS MAY NOT PROVIDE ENOUGH
PROTECTION FROM THE VERY COLD TEMPERATURES ESPECIALLY SATURDAY
NIGHT.

TO PREVENT DAMAGE TO SPRINKLER AND IRRIGATION SYSTEMS...
THOROUGHLY DRAIN THE EXPOSED PORTION.

$$
093 
WWUS75 KBOU 061020
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
420 AM MDT SAT OCT 6 2012

...FREEZING TEMPERATURES AGAIN TONIGHT...

.THE COLD AIRMASS WILL REMAIN IN PLACE THROUGH TONIGHT...TEMPERATURES
WILL BE NEAR FREEZING THROUGH MID MORNING TODAY.  EVEN COLDER
TEMPERATURES ARE EXPECTED TONIGHT AS SKIES CLEAR OVERNIGHT ALLOWING
TEMPERATURES TO DROP INTO THE LOW TO MID 20S.

COZ038>051-061830-
/O.CON.KBOU.FZ.W.0002.000000T0000Z-121006T1600Z/
/O.CON.KBOU.HZ.W.0001.121007T0400Z-121007T1500Z/
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-
INCLUDING THE CITIES OF...FORT COLLINS...HEREFORD...LOVELAND...
NUNN...ARVADA...BOULDER...GOLDEN...LAKEWOOD...LONGMONT...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
420 AM MDT SAT OCT 6 2012

...FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM MDT THIS
MORNING...
...HARD FREEZE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING
TO 9 AM MDT SUNDAY...

* TIMING...EVEN COLDER TEMPERATURES ARE EXPECTED FOR TONIGHT.

* TEMPERATURE...LOWS TONIGHT WILL BE COLDER...BETWEEN 21 AND 27
  DEGREES.

* IMPACTS...COLD TEMPERATURES WILL BRING AN END TO THE GROWING
  SEASON TONIGHT. DAMAGE MAY OCCUR TO HOSES AND UNPROTECTED
  IRRIGATION SYSTEMS OVERNIGHT. UNPROTECTED VEGETATION WILL
  CERTAINLY FREEZE TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE OUTDOOR VEGETATION. IF POSSIBLE...MOVE PLANTS INDOORS
TO PROTECT THEM FROM THE COLD. BLANKETS MAY NOT PROVIDE ENOUGH
PROTECTION FROM THE VERY COLD TEMPERATURES ESPECIALLY SATURDAY
NIGHT.

TO PREVENT DAMAGE TO SPRINKLER AND IRRIGATION SYSTEMS...
THOROUGHLY DRAIN THE EXPOSED PORTION.

$$
141 
WWUS75 KBOU 061609
NPWBOU

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
1009 AM MDT SAT OCT 6 2012

...FREEZING TEMPERATURES AGAIN TONIGHT...

.THE COLD AIRMASS WILL REMAIN IN PLACE WITH EVEN COLDER
TEMPERATURES EXPECTED TONIGHT. PARTIALLY CLEARING SKIES WILL
LIKELY ALLOW TEMPERATURES TO DROP INTO THE LOWER TO MID 20S.

COZ038>051-070015-
/O.EXP.KBOU.FZ.W.0002.000000T0000Z-121006T1600Z/
/O.EXT.KBOU.HZ.W.0001.121007T0100Z-121007T1500Z/
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-
INCLUDING THE CITIES OF...FORT COLLINS...HEREFORD...LOVELAND...
NUNN...ARVADA...BOULDER...GOLDEN...LAKEWOOD...LONGMONT...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
1009 AM MDT SAT OCT 6 2012

...HARD FREEZE WARNING NOW IN EFFECT FROM 7 PM THIS EVENING TO
9 AM MDT SUNDAY...
...FREEZE WARNING HAS EXPIRED FOR THIS MORNING...

* TEMPERATURE...LOWS TONIGHT WILL BE COLDER...BETWEEN 21 AND 26 
  DEGREES.
 
* IMPACTS...COLD TEMPERATURES WILL BRING AN END TO THE GROWING 
  SEASON TONIGHT. DAMAGE MAY OCCUR TO HOSES AND UNPROTECTED 
  IRRIGATION SYSTEMS OVERNIGHT. UNPROTECTED VEGETATION WILL 
  CERTAINLY FREEZE TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE OUTDOOR VEGETATION. IF POSSIBLE...MOVE PLANTS INDOORS
TO PROTECT THEM FROM THE COLD. BLANKETS MAY NOT PROVIDE ENOUGH
PROTECTION FROM THE VERY COLD TEMPERATURES ESPECIALLY SATURDAY
NIGHT.

TO PREVENT DAMAGE TO SPRINKLER AND IRRIGATION SYSTEMS...
THOROUGHLY DRAIN THE EXPOSED PORTION.

$$

BARJENBRUCH

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 5, 2:59 PM MDTHard Freeze WarningBOUAdams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 10 more42 hr
Oct 5, 3:43 PM MDTWinter Weather AdvisoryBOULogan, Morgan, Phillips, Sedgwick, Washington, Weld22 hr

Nearby

Freeze Warnings in Colorado, 2012Every freeze warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.