Alert archive / Colorado / Frost Advisories in 2012

Frost Advisory 2, NWS Pueblo, CO

September 14, 20125 counties in Colorado

NWS Pueblo, CO issued this frost advisory at Sep 14, 2012, 12:25 PM MDT for 5 counties in Colorado. It took effect at Sep 15, 2012, 1:00 AM MDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Sep 14, 2012, 12:25 PM MDT (18:25 UTC)
In effect from
Sep 15, 2012, 1:00 AM MDT
Expired
Sep 15, 2012, 8:00 AM MDT
In force
7 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 18:23 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, 6.4 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 2012-09-14Temperature 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 2012-09-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -25 square meters per square second.1939Sfc1 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
3420 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-25 m²/s²
0-3 km storm-relative helicity
41 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.

049 
WWUS75 KPUB 141825
NPWPUB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PUEBLO CO
1225 PM MDT FRI SEP 14 2012

COZ069>071-150030-
/O.NEW.KPUB.FR.Y.0002.120915T0700Z-120915T1400Z/
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
1225 PM MDT FRI SEP 14 2012

...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM MDT SATURDAY...

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 1 AM TO 8 AM MDT SATURDAY. 

* LOCATION...THE SAN LUIS VALLEY.

* TEMPERATURE...MINIMUM TEMPERATURES BETWEEN 29 AND 35 DEGREES ARE
  ANTICIPATED OVER MANY SECTIONS OF THE SAN LUIS VALLEY LATER
  TONIGHT...ESPECIALLY AFTER MIDNIGHT...AND FROST WILL BE LIKELY.

* IMPACT...TAKE PRECAUTIONS TO PROTECT CROPS OR VEGETATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TEMPERATURES AROUND FREEZING ARE ANTICIPATED. TAKE PRECAUTIONS TO PROTECT
CROPS OR VEGETATION.

&&

$$
4 follow-up statements
485 
WWUS75 KPUB 142035
NPWPUB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PUEBLO CO
235 PM MDT FRI SEP 14 2012

COZ069>071-150245-
/O.CON.KPUB.FR.Y.0002.120915T0700Z-120915T1400Z/
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
235 PM MDT FRI SEP 14 2012

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM MDT
SATURDAY...

A FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM MDT
SATURDAY. 

* LOCATION...THE SAN LUIS VALLEY.

* TEMPERATURE...MINIMUM TEMPERATURES BETWEEN 29 AND 35 DEGREES 
  ARE ANTICIPATED OVER MANY SECTIONS OF THE SAN LUIS VALLEY 
  LATER TONIGHT...ESPECIALLY AFTER MIDNIGHT...AND FROST WILL BE 
  LIKELY. 

* IMPACT...TAKE PRECAUTIONS TO PROTECT CROPS OR VEGETATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TEMPERATURES AROUND FREEZING ARE ANTICIPATED. TAKE PRECAUTIONS TO
PROTECT CROPS OR VEGETATION.

&&

$$
227 
WWUS75 KPUB 150151
NPWPUB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PUEBLO CO
751 PM MDT FRI SEP 14 2012

COZ069>071-151000-
/O.CON.KPUB.FR.Y.0002.120915T0700Z-120915T1400Z/
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
751 PM MDT FRI SEP 14 2012

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM MDT
SATURDAY...

A FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM MDT
SATURDAY. 

* LOCATION...THE SAN LUIS VALLEY.

* TEMPERATURE...MINIMUM TEMPERATURES BETWEEN 29 AND 35 DEGREES 
  ARE ANTICIPATED OVER MANY SECTIONS OF THE SAN LUIS VALLEY 
  LATER TONIGHT...ESPECIALLY AFTER MIDNIGHT...AND FROST WILL BE 
  LIKELY. 

* IMPACT...TAKE PRECAUTIONS TO PROTECT CROPS OR VEGETATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TEMPERATURES AROUND FREEZING ARE ANTICIPATED. TAKE PRECAUTIONS TO
PROTECT CROPS OR VEGETATION.

&&

$$
610 
WWUS75 KPUB 150922
NPWPUB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PUEBLO CO
322 AM MDT SAT SEP 15 2012

COZ069>071-151400-
/O.CON.KPUB.FR.Y.0002.000000T0000Z-120915T1400Z/
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
322 AM MDT SAT SEP 15 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.

* TEMPERATURES...LOW TEMPERATURES BETWEEN 29 AND 35 DEGREES ARE
  EXPECTED OVER MANY PARTS OF THE SAN LUIS VALLEY EARLY THIS
  MORNING. DUE TO MOISTURE IN THE AIR FROM RECENT PRECIPITATION...
  FROST WILL BE LIKELY.

* IMPACT...TAKE PRECAUTIONS TO PROTECT CROPS OR VEGETATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TEMPERATURES AROUND FREEZING ARE ANTICIPATED. TAKE PRECAUTIONS TO
PROTECT CROPS OR VEGETATION.

&&

$$
516 
WWUS75 KPUB 151349
NPWPUB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PUEBLO CO
749 AM MDT SAT SEP 15 2012

COZ069>071-151500-
/O.EXP.KPUB.FR.Y.0002.000000T0000Z-120915T1400Z/
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
749 AM MDT SAT SEP 15 2012

...FROST ADVISORY WILL EXPIRE AT 8 AM MDT THIS MORNING...

THE FROST ADVISORY WILL EXPIRE AT 8 AM MDT THIS MORNING. 

THE FROST ADVISORY THAT WAS IN EFFECT FOR THE SAN LUIS VALLEY
WILL BE ALLOWED TO EXPIRE AT 8 AM MDT AS THE SUN COMES UP AND
TEMPERATURES RISE ABOVE FREEZING.

$$

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.