Alert archive / Minnesota / Frost Advisories in 2013

Frost Advisory 7, NWS Twin Cities, MN

October 12, 201319 counties in Minnesota

NWS Twin Cities, MN issued this frost advisory at Oct 12, 2013, 2:27 PM CDT for 19 counties in Minnesota. It took effect at Oct 13, 2013, 1:00 AM CDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Oct 12, 2013, 2:27 PM CDT (19:27 UTC)
In effect from
Oct 13, 2013, 1:00 AM CDT
Expired
Oct 13, 2013, 9:00 AM CDT
In force
8 hr
Issued by
NWS Twin Cities, MN

Counties Blue Earth County, MN, Brown County, MN, Chippewa County, MN, Douglas County, MN, Faribault County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Martin County, MN, McLeod County, MN, Meeker County, MN, Nicollet County, MN, Pope County, MN, Redwood County, MN, Renville County, MN, Sibley County, MN, Stevens County, MN, Swift County, MN, Watonwan County, MN, Yellow Medicine County, MN

The radar

The Minneapolis radar (KMPX), 112 km from the middle of the area, began a volume at 19:30 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

Minneapolis, MN (KMPX), launched 12:00Z, 7.5 hours before the alert went out and 110 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, Minneapolis, MN at 12:00Z on 2013-10-12Temperature 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, Minneapolis, MN at 12:00Z on 2013-10-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -96 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
915 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
-96 m²/s²
0-3 km storm-relative helicity
87 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.

580 
WWUS73 KMPX 121927
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
227 PM CDT SAT OCT 12 2013

...FROST POSSIBLE AFTER MIDNIGHT

.AREAS OF FROST CAN BE EXPECTED LATE TONIGHT. CLEAR SKIES AND
LIGHT WINDS WILL ALLOW TEMPERATURES TO FALL INTO THE LOWER AND
MIDDLE 30S ACROSS PORTIONS OF WEST CENTRAL INTO SOUTH CENTRAL
MINNESOTA. A FROST ADVISORY HAS BEEN ISSUED WEST OF A LINE FROM
ALEAXANDRIA....TO HUTCHINSON AND BLUE EARTH....FROM 1 AM UNTIL 9AM
SUNDAY MORNING. 

MNZ041-047-048-054>058-064>067-073>075-082-083-091-092-130330-
/O.NEW.KMPX.FR.Y.0007.131013T0600Z-131013T1400Z/
DOUGLAS-STEVENS-POPE-LAC QUI PARLE-SWIFT-CHIPPEWA-KANDIYOHI-
MEEKER-YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-REDWOOD-BROWN-
NICOLLET-WATONWAN-BLUE EARTH-MARTIN-FARIBAULT-
INCLUDING THE CITIES OF...ALEXANDRIA...MORRIS...GLENWOOD...
MADISON...BENSON...MONTEVIDEO...WILLMAR...LITCHFIELD...
GRANITE FALLS...OLIVIA...HUTCHINSON...GAYLORD...REDWOOD FALLS...
NEW ULM...ST. PETER...ST. JAMES...MANKATO...FAIRMONT...BLUE EARTH
227 PM CDT SAT OCT 12 2013

...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM CDT SUNDAY...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED
A FROST ADVISORY...WHICH IS IN EFFECT FROM 1 AM TO 9 AM CDT
SUNDAY. 

* TEMPERATURE: LOWS DROPPING INTO THE LOWER AND MIDDLE 30S. 

* IMPACTS: AREAS OF FROST POSING A THREAT TO SENSITIVE OUTDOOR
  PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$
2 follow-up statements
486 
WWUS73 KMPX 130236
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
936 PM CDT SAT OCT 12 2013

...FROST POSSIBLE OVERNIGHT...

.AREAS OF FROST CAN BE EXPECTED OVERNIGHT THRU DAYBREAK SUNDAY
MORNING. CLEAR SKIES AND LIGHT WINDS WILL ALLOW TEMPERATURES TO
FALL INTO THE LOWER AND MIDDLE 30S ACROSS PORTIONS OF WEST CENTRAL
INTO SOUTH CENTRAL MINNESOTA. A FROST ADVISORY HAS BEEN ISSUED FOR
LOCATIONS ALONG AND WEST OF A LINE FROM ALEXANDRIA...TO
HUTCHINSON TO BLUE EARTH FROM 1 AM UNTIL 9 AM SUNDAY MORNING.

MNZ041-047-048-054>058-064>067-073>075-082-083-091-092-131100-
/O.CON.KMPX.FR.Y.0007.131013T0600Z-131013T1400Z/
DOUGLAS-STEVENS-POPE-LAC QUI PARLE-SWIFT-CHIPPEWA-KANDIYOHI-
MEEKER-YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-REDWOOD-BROWN-
NICOLLET-WATONWAN-BLUE EARTH-MARTIN-FARIBAULT-
INCLUDING THE CITIES OF...ALEXANDRIA...MORRIS...GLENWOOD...
MADISON...BENSON...MONTEVIDEO...WILLMAR...LITCHFIELD...
GRANITE FALLS...OLIVIA...HUTCHINSON...GAYLORD...REDWOOD FALLS...
NEW ULM...ST. PETER...ST. JAMES...MANKATO...FAIRMONT...BLUE EARTH
936 PM CDT SAT OCT 12 2013

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM CDT
SUNDAY...

A FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM CDT SUNDAY. 

* TEMPERATURE: LOWS DROPPING INTO THE LOWER AND MIDDLE 30S.

* IMPACTS: AREAS OF FROST MAY CAUSE DAMAGE TO SENSITIVE OUTDOOR
  PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$
545 
WWUS73 KMPX 130723
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
223 AM CDT SUN OCT 13 2013

...FROST EARLY THIS MORNING...

.A FROST ADVISORY REMAINS IN EFFECT THROUGH 9 AM THIS MORNING FOR 
LOCATIONS ALONG AND WEST OF A LINE FROM ALEXANDRIA... TO
HUTCHINSON TO BLUE EARTH. CLEAR SKIES AND LIGHT WINDS WILL ALLOW
TEMPERATURES TO FALL TO THE LOWER AND MIDDLE 30S ACROSS THE
ADVISORY AREA BY DAYBREAK... WITH AREAS OF FROST OCCURRING.

MNZ041-047-048-054>058-064>067-073>075-082-083-091-092-131400-
/O.CON.KMPX.FR.Y.0007.000000T0000Z-131013T1400Z/
DOUGLAS-STEVENS-POPE-LAC QUI PARLE-SWIFT-CHIPPEWA-KANDIYOHI-
MEEKER-YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-REDWOOD-BROWN-
NICOLLET-WATONWAN-BLUE EARTH-MARTIN-FARIBAULT-
INCLUDING THE CITIES OF...ALEXANDRIA...MORRIS...GLENWOOD...
MADISON...BENSON...MONTEVIDEO...WILLMAR...LITCHFIELD...
GRANITE FALLS...OLIVIA...HUTCHINSON...GAYLORD...REDWOOD FALLS...
NEW ULM...ST. PETER...ST. JAMES...MANKATO...FAIRMONT...BLUE EARTH
223 AM CDT SUN OCT 13 2013

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING...

A FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT THIS MORNING. 

* TEMPERATURE: LOWS DROPPING INTO THE LOWER AND MIDDLE 30S.

* IMPACTS: FROST MAY CAUSE DAMAGE TO SENSITIVE OUTDOOR PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$

Nearby

Frost Advisories in Minnesota, 2013Every frost advisory 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.