Alert archive / Minnesota / Frost Advisories in 2015

Frost Advisory 2, NWS Twin Cities, MN

May 18, 201512 counties in Minnesota

NWS Twin Cities, MN issued this frost advisory at May 18, 2015, 3:18 PM CDT for 12 counties in Minnesota. It took effect at May 19, 2015, 1:00 AM CDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
May 18, 2015, 3:18 PM CDT (20:18 UTC)
In effect from
May 19, 2015, 1:00 AM CDT
Expired
May 19, 2015, 7:56 AM CDT
In force
7 hr
Issued by
NWS Twin Cities, MN

Counties Benton County, MN, Chippewa County, MN, Douglas County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Morrison County, MN, Pope County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Yellow Medicine County, MN

The radar

The Minneapolis radar (KMPX), 149 km from the middle of the area, began a volume at 20:05 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, 8.3 hours before the alert went out and 146 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 2015-05-18Temperature 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 2015-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 93 square meters per square second.19395878Sfc1 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
685 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
93 m²/s²
0-3 km storm-relative helicity
115 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.

589 
WWUS73 KMPX 182018
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
318 PM CDT MON MAY 18 2015

...COLD TEMPERATURES WITH THE THREAT FOR FROST LATE TONIGHT...

.STRONG NORTHWEST WIND WILL DIMINISH OVERNIGHT AND THE SKY WILL
GRADUALLY BECOME PARTLY CLOUDY. THE COMBINATION OF LIGHTER WINDS
AND COLD TEMPERATURES WILL RESULT IN THE THREAT OF FROST FOR MUCH
OF WEST CENTRAL INTO CENTRAL MINNESOTA. A FROST ADVISORY HAS BEEN
ISSUED FROM 1 AM UNTIL 8 AM TUESDAY...FOR THE AREA WEST OF A LINE
FROM HILLMAN...ST CLOUD AND MONTEVIDEO.

IF THE LOW CLOUDS CLEAR EARLIER THAN ANTICIPATED...FROST AND
POTENTIAL FREEZING TEMPERATURES COULD BE MORE EXPANSIVE AND COULD
AFFECT A LARGER PORTION OF CENTRAL MINNESOTA OR WEST CENTRAL
WISCONSIN. 

MNZ041>043-047>050-054>057-064-190430-
/O.NEW.KMPX.FR.Y.0002.150519T0600Z-150519T1300Z/
DOUGLAS-TODD-MORRISON-STEVENS-POPE-STEARNS-BENTON-LAC QUI PARLE-
SWIFT-CHIPPEWA-KANDIYOHI-YELLOW MEDICINE-
INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE...
LITTLE FALLS...MORRIS...GLENWOOD...ST. CLOUD...FOLEY...MADISON...
BENSON...MONTEVIDEO...WILLMAR...GRANITE FALLS
318 PM CDT MON MAY 18 2015

...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT TUESDAY...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED
A FROST ADVISORY...WHICH IS IN EFFECT FROM 1 AM TO 8 AM CDT
TUESDAY. 

* TEMPERATURE...31 TO 34.

* WIND...NORTHWEST WIND WILL DIMINISH TO 5 TO 10 MPH LATE.

* IMPACTS...AREAS OF FROST ARE LIKELY AFTER MIDNIGHT THROUGH 8 AM
  TUESDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
3 follow-up statements
470 
WWUS73 KMPX 190324
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1024 PM CDT MON MAY 18 2015

...COLD TEMPERATURES WITH THE THREAT FOR FROST LATE TONIGHT...

.STRONG NORTHWEST WIND WILL DIMINISH OVERNIGHT AND THE SKY WILL
GRADUALLY BECOME PARTLY CLOUDY. THE COMBINATION OF LIGHTER WINDS
AND COLD TEMPERATURES WILL RESULT IN THE THREAT OF FROST FOR MUCH
OF WEST CENTRAL INTO CENTRAL MINNESOTA. A FROST ADVISORY HAS BEEN
ISSUED FROM 1 AM UNTIL 8 AM TUESDAY...FOR THE AREA WEST OF A LINE
FROM HILLMAN...ST CLOUD AND MONTEVIDEO.

IF THE LOW CLOUDS CLEAR EARLIER THAN ANTICIPATED...FROST AND
POTENTIAL FREEZING TEMPERATURES COULD BE MORE EXPANSIVE AND COULD
AFFECT A LARGER PORTION OF CENTRAL MINNESOTA OR WEST CENTRAL
WISCONSIN.

MNZ041>043-047>050-054>057-064-191100-
/O.CON.KMPX.FR.Y.0002.150519T0600Z-150519T1300Z/
DOUGLAS-TODD-MORRISON-STEVENS-POPE-STEARNS-BENTON-LAC QUI PARLE-
SWIFT-CHIPPEWA-KANDIYOHI-YELLOW MEDICINE-
INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE...
LITTLE FALLS...MORRIS...GLENWOOD...ST. CLOUD...FOLEY...MADISON...
BENSON...MONTEVIDEO...WILLMAR...GRANITE FALLS
1024 PM CDT MON MAY 18 2015

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT TUESDAY...

* TEMPERATURE...LOWS BETWEEN 31 AND 34.

* WIND...NORTHWEST WIND WILL DIMINISH TO 5 TO 10 MPH DURING THE
  EARLY MORNING HOURS TUESDAY.

* IMPACTS...SENSITIVE OUTDOOR VEGETATION MAY BE DAMAGED OR KILLED
  IF PROPER PRECAUTIONS ARE NOT TAKEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
778 
WWUS73 KMPX 190853
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
353 AM CDT TUE MAY 19 2015

...BETTER CHANCE OF FROST TONIGHT...

.A FROST ADVISORY HAS BEEN ISSUED FROM 1 AM UNTIL 7 AM
WEDNESDAY...FOR THE AREA NORTH OF A LINE FROM SAUK CENTER...ST
CLOUD AND FOREST LAKE IN MINNESOTA...AND NORTH OF A LINE FROM NEW
RICHMOND TO EAU CLAIRE IN WISCONSIN.

THERE IS A MUCH BETTER CHANCE OF WIDESPREAD FROST TONIGHT AS
WINDS WILL BE LIGHT AND SKY CONDITIONS WILL BE MOSTLY CLEAR.
SOME UNCERTAINTIES EXIST ON FROST POTENTIAL FOR AREAS TO THE
SOUTH OF THE ADVISORY AREA DUE TO INCREASING CLOUD COVER TONIGHT.

MNZ042-043-049-050-191700-
/O.NEW.KMPX.FR.Y.0003.150520T0600Z-150520T1200Z/
/O.CON.KMPX.FR.Y.0002.000000T0000Z-150519T1300Z/
TODD-MORRISON-STEARNS-BENTON-
INCLUDING THE CITIES OF...LONG PRAIRIE...LITTLE FALLS...
ST. CLOUD...FOLEY
353 AM CDT TUE MAY 19 2015

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING...
...FROST ADVISORY IN EFFECT FROM 1 AM TO 7 AM CDT WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED
A FROST ADVISORY...WHICH IS IN EFFECT FROM 1 AM TO 7 AM CDT
WEDNESDAY. 

* TEMPERATURE...LOWS BETWEEN 30 AND 34.

* IMPACTS...SENSITIVE OUTDOOR VEGETATION MAY BE DAMAGED OR 
  KILLED IF PROPER PRECAUTIONS ARE NOT TAKEN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MNZ044-045-051>053-WIZ014>016-023-025-027-028-191700-
/O.NEW.KMPX.FR.Y.0003.150520T0600Z-150520T1200Z/
MILLE LACS-KANABEC-SHERBURNE-ISANTI-CHISAGO-POLK-BARRON-RUSK-
ST. CROIX-DUNN-CHIPPEWA-EAU CLAIRE-
INCLUDING THE CITIES OF...PRINCETON...MORA...ELK RIVER...
CAMBRIDGE...CENTER CITY...OSCEOLA...RICE LAKE...LADYSMITH...
HUDSON...MENOMONIE...CHIPPEWA FALLS...EAU CLAIRE
353 AM CDT TUE MAY 19 2015

...FROST ADVISORY IN EFFECT FROM 1 AM TO 7 AM CDT WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED
A FROST ADVISORY...WHICH IS IN EFFECT FROM 1 AM TO 7 AM CDT
WEDNESDAY. 

* TEMPERATURE...LOWS BETWEEN 28 TO 34 DEGREES.

* IMPACTS...SENSITIVE OUTDOOR VEGETATION MAY BE DAMAGED OR 
  KILLED IF PROPER PRECAUTIONS ARE NOT TAKEN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MNZ041-047-048-054>057-064-191300-
/O.CON.KMPX.FR.Y.0002.000000T0000Z-150519T1300Z/
DOUGLAS-STEVENS-POPE-LAC QUI PARLE-SWIFT-CHIPPEWA-KANDIYOHI-
YELLOW MEDICINE-
INCLUDING THE CITIES OF...ALEXANDRIA...MORRIS...GLENWOOD...
MADISON...BENSON...MONTEVIDEO...WILLMAR...GRANITE FALLS
353 AM CDT TUE MAY 19 2015

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

* TEMPERATURE...LOWS BETWEEN 30 AND 34.

* IMPACTS...SENSITIVE OUTDOOR VEGETATION MAY BE DAMAGED OR 
  KILLED IF PROPER PRECAUTIONS ARE NOT TAKEN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

JLT
664 
WWUS73 KMPX 191256
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
756 AM CDT TUE MAY 19 2015

...WIDESPREAD FROST EXPECTED TONIGHT...

.A FROST ADVISORY IS IN EFFECT FROM 1 AM UNTIL 7 AM
WEDNESDAY...FOR LOCATIONS NORTH OF A LINE FROM SAUK CENTER...TO ST
CLOUD TO FOREST LAKE IN MINNESOTA...AND NORTH OF A LINE FROM NEW
RICHMOND TO EAU CLAIRE IN WISCONSIN.

THERE IS A MUCH BETTER CHANCE OF WIDESPREAD FROST TONIGHT AS
WINDS WILL BE LIGHT AND SKY CONDITIONS WILL BE MOSTLY CLEAR. SOME
UNCERTAINTIES EXIST ON FROST POTENTIAL FOR AREAS TO THE SOUTH OF
THE ADVISORY AREA DUE TO INCREASING CLOUD COVER TONIGHT.

MNZ042-043-049-050-192100-
/O.CAN.KMPX.FR.Y.0002.000000T0000Z-150519T1300Z/
/O.CON.KMPX.FR.Y.0003.150520T0600Z-150520T1200Z/
TODD-MORRISON-STEARNS-BENTON-
INCLUDING THE CITIES OF...LONG PRAIRIE...LITTLE FALLS...
ST. CLOUD...FOLEY
756 AM CDT TUE MAY 19 2015

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 7 AM CDT
WEDNESDAY...

* TEMPERATURE...LOWS BETWEEN 30 AND 34.

* IMPACTS...SENSITIVE OUTDOOR VEGETATION MAY BE DAMAGED OR 
  KILLED IF PROPER PRECAUTIONS ARE NOT TAKEN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MNZ041-047-048-054>057-064-191400-
/O.CAN.KMPX.FR.Y.0002.000000T0000Z-150519T1300Z/
DOUGLAS-STEVENS-POPE-LAC QUI PARLE-SWIFT-CHIPPEWA-KANDIYOHI-
YELLOW MEDICINE-
INCLUDING THE CITIES OF...ALEXANDRIA...MORRIS...GLENWOOD...
MADISON...BENSON...MONTEVIDEO...WILLMAR...GRANITE FALLS
756 AM CDT TUE MAY 19 2015

...FROST ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS
CANCELLED THE FROST ADVISORY. 


$$

MNZ044-045-051>053-WIZ014>016-023-025-027-028-192100-
/O.CON.KMPX.FR.Y.0003.150520T0600Z-150520T1200Z/
MILLE LACS-KANABEC-SHERBURNE-ISANTI-CHISAGO-POLK-BARRON-RUSK-
ST. CROIX-DUNN-CHIPPEWA-EAU CLAIRE-
INCLUDING THE CITIES OF...PRINCETON...MORA...ELK RIVER...
CAMBRIDGE...CENTER CITY...OSCEOLA...RICE LAKE...LADYSMITH...
HUDSON...MENOMONIE...CHIPPEWA FALLS...EAU CLAIRE
756 AM CDT TUE MAY 19 2015

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 7 AM CDT
WEDNESDAY...

* TEMPERATURE...LOWS BETWEEN 28 TO 34 DEGREES.

* IMPACTS...SENSITIVE OUTDOOR VEGETATION MAY BE DAMAGED OR 
  KILLED IF PROPER PRECAUTIONS ARE NOT TAKEN. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 17, 8:47 PM CDTSpecial Weather StatementMPXAnoka, Chisago, Isanti, Kanabec, Mille Lacs, Ramsey and 1 more28 min
May 17, 9:14 PM CDTSpecial Weather StatementMPXDakota, Hennepin, Scott, Sherburne, Wright61 min

Nearby

Frost Advisories in Minnesota, 2015Every frost advisory in 2015

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.