Alert archive / Colorado / Frost Advisories in 2012

Frost Advisory 3, NWS Pueblo, CO

September 15, 20125 counties in Colorado

NWS Pueblo, CO issued this frost advisory at Sep 15, 2012, 2:47 PM MDT for 5 counties in Colorado. It took effect at Sep 16, 2012, 2:00 AM MDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Sep 15, 2012, 2:47 PM MDT (20:47 UTC)
In effect from
Sep 16, 2012, 2:00 AM MDT
Expired
Sep 16, 2012, 7:39 AM MDT
In force
6 hr
Issued by
NWS Pueblo, CO

Counties Alamosa County, CO, Conejos County, CO, Costilla County, CO, Rio Grande County, CO, Saguache County, CO

The radar

The Pueblo radar (KPUX), 190 km from the middle of the area, began a volume at 20:48 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, 8.8 hours before the alert went out and 279 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, Grand Junction, CO at 12:00Z on 2012-09-15Temperature 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 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Grand Junction, CO at 12:00Z on 2012-09-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 66 square meters per square second.193958Sfc1 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
3261 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
66 m²/s²
0-3 km storm-relative helicity
47 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

971 
WWUS75 KPUB 152047
NPWPUB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PUEBLO CO
247 PM MDT SAT SEP 15 2012

COZ069>071-160300-
/O.NEW.KPUB.FR.Y.0003.120916T0800Z-120916T1400Z/
DEL NORTE VICINITY/NORTHERN SAN LUIS VALLEY BELOW 8500 FT-
ALAMOSA VICINITY/CENTRAL SAN LUIS VALLEY BELOW 8500 FT-
SOUTHERN SAN LUIS VALLEY-
INCLUDING...CENTER...DEL NORTE...ALAMOSA...MONTE VISTA...
MANASSA...LA JARA...ANTONITO...SANFORD...SAN LUIS...
FORT GARLAND...BLANCA
247 PM MDT SAT SEP 15 2012

...FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM MDT SUNDAY...

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 8 AM MDT SUNDAY. 

* LOCATION...THE SAN LUIS VALLEY

* TEMPERATURE...LOWS TONIGHT ARE EXPECTED TO FALL INTO THE UPPER
  20S AND LOWER 30S...MAINLY IN THE CENTER PORTIONS OF THE
  VALLEY...INCLUDING BUT NOT LIMITED TO...ALAMOSA...MONTE VISTA...
  MOSCA AND LA JARA.

* IMPACT...THE COLD TEMPERATURES COULD DAMAGE SOME VEGETATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TEMPERATURES AROUND FREEZING WILL OCCUR FOR A SHORT PERIOD OF
TIME. TAKE PRECAUTIONS TO PROTECT CROPS OR VEGETATION.

&&

$$
4 follow-up statements
461 
WWUS75 KPUB 160230
NPWPUB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PUEBLO CO
830 PM MDT SAT SEP 15 2012

COZ069>071-160830-
/O.CON.KPUB.FR.Y.0003.120916T0800Z-120916T1400Z/
DEL NORTE VICINITY/NORTHERN SAN LUIS VALLEY BELOW 8500 FT-
ALAMOSA VICINITY/CENTRAL SAN LUIS VALLEY BELOW 8500 FT-
SOUTHERN SAN LUIS VALLEY-
INCLUDING...CENTER...DEL NORTE...ALAMOSA...MONTE VISTA...
MANASSA...LA JARA...ANTONITO...SANFORD...SAN LUIS...
FORT GARLAND...BLANCA
830 PM MDT SAT SEP 15 2012

...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 AM MDT
SUNDAY...

A FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 AM MDT SUNDAY. 

* LOCATION...THE SAN LUIS VALLEY

* TEMPERATURE...LOWS TONIGHT ARE EXPECTED TO FALL INTO THE UPPER 
  20S AND LOWER 30S...MAINLY IN THE CENTER PORTIONS OF THE 
  VALLEY...INCLUDING BUT NOT LIMITED TO...ALAMOSA...MONTE 
  VISTA... MOSCA AND LA JARA. 

* IMPACT...THE COLD TEMPERATURES COULD DAMAGE SOME VEGETATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TEMPERATURES AROUND FREEZING WILL OCCUR FOR A SHORT PERIOD OF
TIME. TAKE PRECAUTIONS TO PROTECT CROPS OR VEGETATION.

&&

$$
488 
WWUS75 KPUB 160525
NPWPUB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PUEBLO CO
1125 PM MDT SAT SEP 15 2012

COZ069>071-161130-
/O.CON.KPUB.FR.Y.0003.120916T0800Z-120916T1400Z/
DEL NORTE VICINITY/NORTHERN SAN LUIS VALLEY BELOW 8500 FT-
ALAMOSA VICINITY/CENTRAL SAN LUIS VALLEY BELOW 8500 FT-
SOUTHERN SAN LUIS VALLEY-
INCLUDING...CENTER...DEL NORTE...ALAMOSA...MONTE VISTA...
MANASSA...LA JARA...ANTONITO...SANFORD...SAN LUIS...
FORT GARLAND...BLANCA
1125 PM MDT SAT SEP 15 2012

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM MDT SUNDAY...

A FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM MDT SUNDAY. 

* LOCATION...THE SAN LUIS VALLEY

* TEMPERATURE...LOWS TONIGHT ARE EXPECTED TO FALL INTO THE UPPER
  20S AND LOWER 30S...MAINLY IN THE CENTRAL PORTIONS OF THE
  VALLEY...INCLUDING BUT NOT LIMITED TO...ALAMOSA...MONTE VISTA...
  MOSCA AND LA JARA.

* IMPACT...THE COLD TEMPERATURES COULD DAMAGE SOME VEGETATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TEMPERATURES AROUND FREEZING WILL OCCUR FOR A SHORT PERIOD OF
TIME. TAKE PRECAUTIONS TO PROTECT CROPS OR VEGETATION.

&&

$$
890 
WWUS75 KPUB 161035
NPWPUB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PUEBLO CO
435 AM MDT SUN SEP 16 2012

COZ069>071-161400-
/O.CON.KPUB.FR.Y.0003.000000T0000Z-120916T1400Z/
DEL NORTE VICINITY/NORTHERN SAN LUIS VALLEY BELOW 8500 FT-
ALAMOSA VICINITY/CENTRAL SAN LUIS VALLEY BELOW 8500 FT-
SOUTHERN SAN LUIS VALLEY-
INCLUDING...CENTER...DEL NORTE...ALAMOSA...MONTE VISTA...
MANASSA...LA JARA...ANTONITO...SANFORD...SAN LUIS...
FORT GARLAND...BLANCA
435 AM MDT SUN SEP 16 2012

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM MDT THIS MORNING...

A FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM MDT THIS MORNING. 

* LOCATION...THE SAN LUIS VALLEY

* TEMPERATURE...TEMPERATURES FALLING INTO THE LOWER 30S EARLY THIS
  MORNING WILL KEEP THE POTENTIAL FOR AREAS OF FROST ACROSS MAINLY
  CENTRAL PORTIONS OF THE SAN LUIS VALLEY...INCLUDING BUT NOT
  LIMITED TO...ALAMOSA...MONTE VISTA...MOSCA AND LA JARA.

* IMPACT...THE COLD TEMPERATURES COULD DAMAGE SOME VEGETATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TEMPERATURES AROUND FREEZING WILL OCCUR FOR A SHORT PERIOD OF
TIME. TAKE PRECAUTIONS TO PROTECT CROPS OR VEGETATION.

&&

$$
357 
WWUS75 KPUB 161339
NPWPUB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PUEBLO CO
739 AM MDT SUN SEP 16 2012

COZ069>071-161445-
/O.CAN.KPUB.FR.Y.0003.000000T0000Z-120916T1400Z/
DEL NORTE VICINITY/NORTHERN SAN LUIS VALLEY BELOW 8500 FT-
ALAMOSA VICINITY/CENTRAL SAN LUIS VALLEY BELOW 8500 FT-
SOUTHERN SAN LUIS VALLEY-
739 AM MDT SUN SEP 16 2012

...FROST ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS CANCELLED THE FROST
ADVISORY. 

TEMPERATURES IN THE MID TO UPPER 30S ACROSS CENTRAL PORTIONS OF
THE SAN LUIS VALLEY WILL CONTINUE TO WARM THROUGH THE REST OF THE
MORNING.

$$

Nearby

Frost Advisories in Colorado, 2012Every frost advisory 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.