Alert archive / Colorado / Freeze Warnings in 2016

Freeze Warning 3, NWS Pueblo, CO

September 23, 20165 counties in Colorado

NWS Pueblo, CO issued this freeze warning at Sep 23, 2016, 3:03 PM MDT for 5 counties in Colorado. It took effect at Sep 24, 2016, 12:00 AM MDT. It was in force for 9 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
Sep 23, 2016, 3:03 PM MDT (21:03 UTC)
In effect from
Sep 24, 2016, 12:00 AM MDT
Expired
Sep 24, 2016, 9:00 AM MDT
In force
9 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 21:00 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, 9.1 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 2016-09-23Temperature 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 2016-09-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -84 square meters per square second.1939587897117136Sfc1 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
952 m above ground
0-6 km bulk shear
88 kt
0-1 km storm-relative helicity
-84 m²/s²
0-3 km storm-relative helicity
226 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

591 
WWUS75 KPUB 232103
NPWPUB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PUEBLO CO
303 PM MDT FRI SEP 23 2016

COZ069>071-240515-
/O.UPG.KPUB.FZ.A.0001.160924T0600Z-160924T1500Z/
/O.NEW.KPUB.FZ.W.0003.160924T0600Z-160924T1500Z/
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
303 PM MDT FRI SEP 23 2016

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM MDT
SATURDAY...

THE NATIONAL WEATHER SERVICE IN PUEBLO HAS ISSUED A FREEZE
WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM MDT
SATURDAY. THE FREEZE WATCH IS NO LONGER IN EFFECT. 

* LOCATION...THE SAN LUIS VALLEY.

* TEMPERATURES...TEMPERATURES WILL DROP INTO THE MID TO UPPER 20S
  FOR SEVERAL HOURS LATE TONIGHT INTO SATURDAY MORNING WITH THE
  POTENTIAL FOR A WIDESPREAD KILLING FREEZE.

* IMPACT...TENDER VEGETATION COULD BE SEVERELY DAMAGED OR KILLED 
  BRINGING AN END TO THE GROWING SEASON. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$
3 follow-up statements
911 
WWUS75 KPUB 240451
NPWPUB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PUEBLO CO
1051 PM MDT FRI SEP 23 2016

COZ069>071-241300-
/O.CON.KPUB.FZ.W.0003.160924T0600Z-160924T1500Z/
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
1051 PM MDT FRI SEP 23 2016

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM MDT SATURDAY...

* LOCATION...THE SAN LUIS VALLEY.

* TEMPERATURES...TEMPERATURES WILL DROP INTO THE MID TO UPPER 
  20S FOR SEVERAL HOURS LATE TONIGHT INTO SATURDAY MORNING WITH 
  THE POTENTIAL FOR A WIDESPREAD KILLING FREEZE. 

* IMPACT...TENDER VEGETATION COULD BE SEVERELY DAMAGED OR KILLED 
  BRINGING AN END TO THE GROWING SEASON. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$
603 
WWUS75 KPUB 240955
NPWPUB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PUEBLO CO
355 AM MDT SAT SEP 24 2016

COZ069>071-241500-
/O.CON.KPUB.FZ.W.0003.000000T0000Z-160924T1500Z/
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
355 AM MDT SAT SEP 24 2016

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING...

* LOCATION...THE SAN LUIS VALLEY.

* TEMPERATURES...TEMPERATURES HAVE DROPPED INTO THE MID TO UPPER
  20S EARLY THIS MORNING WITH A LIKELY WIDESPREAD KILLING FREEZE
  ONGOING.

* IMPACT...TENDER VEGETATION COULD BE SEVERELY DAMAGED OR KILLED 
  BRINGING AN END TO THE GROWING SEASON. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$
968 
WWUS75 KPUB 241508
NPWPUB

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PUEBLO CO
908 AM MDT SAT SEP 24 2016

COZ069>071-241615-
/O.EXP.KPUB.FZ.W.0003.000000T0000Z-160924T1500Z/
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
908 AM MDT SAT SEP 24 2016

...FREEZE WARNING HAS EXPIRED...

TEMPERATURES WILL CLIMB ABOVE FREEZING OVER THE NEXT HOUR.

$$

The office that day

Everything else NWS Pueblo, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 23, 1:42 AM MDTAreal Flood AdvisoryPUBFremont, Saguache3 hr
Sep 23, 6:28 AM MDTAreal Flood AdvisoryPUBFremont2 hr

Nearby

Freeze Warnings in Colorado, 2016Every freeze warning in 2016

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.