Alert archive / Minnesota / Frost Advisories in 2008

Frost Advisory 3, NWS Twin Cities, MN

October 2, 200811 counties in Minnesota; Polk County, Wisconsin

NWS Twin Cities, MN issued this frost advisory at Oct 2, 2008, 3:46 PM CDT for 11 counties in Minnesota; Polk County, Wisconsin. It took effect at Oct 3, 2008, 2:00 AM CDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Oct 2, 2008, 3:46 PM CDT (20:46 UTC)
In effect from
Oct 3, 2008, 2:00 AM CDT
Expired
Oct 3, 2008, 8:00 AM CDT
In force
6 hr
Issued by
NWS Twin Cities, MN

Counties Benton County, MN, Chisago County, MN, Douglas County, MN, Isanti County, MN, Kanabec County, MN, Mille Lacs County, MN, Morrison County, MN, Pope County, MN, Sherburne County, MN, Stearns County, MN, Todd County, MN, Polk County, WI

The radar

The Minneapolis radar (KMPX), 103 km from the middle of the area, began a volume at 21:02 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, 8.8 hours before the alert went out and 102 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 2008-10-02Temperature 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 2008-10-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 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
1085 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
171 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.

000 
WWUS73 KMPX 022046
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
346 PM CDT THU OCT 2 2008

...FROST ADVISORY LATE TONIGHT FOR CENTRAL MINNESOTA AND A SMALL
PART OF WEST CENTRAL WISCONSIN...

.A COOL FRONT WILL MOVE THROUGH CENTRAL MINNESOTA AND WEST CENTRAL
WISCONSIN THIS EVENING. CLEARING SKIES AND DRIER AIR BEHIND THE
FRONT WILL BE FAVORABLE FOR TEMPERATURES TO DROP INTO THE LOWER
AND MIDDLE 30S LATE TONIGHT. AREAS OF FROST ARE LIKELY GENERALLY
NORTH OF A LONE FROM AROUND GLENWOOD...TO ST CLOUD...TO RICE LAKE.

AREA NURSERIES AND GARDNERS SHOULD TAKE NECESSARY PRECAUTIONS FOR
THOSE TEMPERATURE SENSITIVE PLANTS.

MNZ041>045-048>053-WIZ014-030500-
/O.NEW.KMPX.FR.Y.0003.081003T0700Z-081003T1300Z/
DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-POPE-STEARNS-BENTON-
SHERBURNE-ISANTI-CHISAGO-POLK-
INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE...
LITTLE FALLS...PRINCETON...MORA...GLENWOOD...ST. CLOUD...FOLEY...
ELK RIVER...CAMBRIDGE...CENTER CITY...AMERY...BALSAM LAKE
346 PM CDT THU OCT 2 2008

...FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM CDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED
A FROST ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 8 AM CDT
FRIDAY. 

CLEARING SKIES AND DRIER AIR BEHIND A COLD FRONT...WILL ALLOW
TEMPERATURES TO DROP INTO THE LOWER AND MIDDLE 30S LATE TONIGHT.
AREAS OF FROST ARE LIKELY IN THE EARLY MORNING HOURS. 

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

$$
2 follow-up statements
000 
WWUS73 KMPX 022253 CCA
NPWMPX

URGENT - WEATHER MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
552 PM CDT THU OCT 2 2008

...FROST ADVISORY LATE TONIGHT FOR CENTRAL MINNESOTA AND A SMALL
PART OF WEST CENTRAL WISCONSIN...

.A COOL FRONT WILL MOVE THROUGH CENTRAL MINNESOTA AND WEST CENTRAL
WISCONSIN THIS EVENING. CLEARING SKIES AND DRIER AIR BEHIND THE
FRONT WILL BE FAVORABLE FOR TEMPERATURES TO DROP INTO THE LOWER
AND MIDDLE 30S LATE TONIGHT. AREAS OF FROST ARE LIKELY GENERALLY
NORTH OF A LINE FROM AROUND GLENWOOD...TO ST CLOUD...TO RICE LAKE.

AREA NURSERIES AND GARDENERS SHOULD TAKE NECESSARY PRECAUTIONS FOR
THOSE TEMPERATURE SENSITIVE PLANTS.

MNZ041>045-048>053-WIZ014-030715-
/O.NEW.KMPX.FR.Y.0003.081003T0700Z-081003T1300Z/
DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-POPE-STEARNS-BENTON-
SHERBURNE-ISANTI-CHISAGO-POLK-
INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE...
LITTLE FALLS...PRINCETON...MORA...GLENWOOD...ST. CLOUD...FOLEY...
ELK RIVER...CAMBRIDGE...CENTER CITY...AMERY...BALSAM LAKE
552 PM CDT THU OCT 2 2008

...FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM CDT FRIDAY...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED
A FROST ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 8 AM CDT
FRIDAY. 

CLEARING SKIES AND DRIER AIR BEHIND A COLD FRONT...WILL ALLOW
TEMPERATURES TO DROP INTO THE LOWER AND MIDDLE 30S LATE TONIGHT.
AREAS OF FROST ARE LIKELY IN THE EARLY MORNING HOURS. 

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

$$
000 
WWUS73 KMPX 030613
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
113 AM CDT FRI OCT 3 2008

...FROST ADVISORY LATE TONIGHT FOR CENTRAL MINNESOTA AND A SMALL
PART OF WEST CENTRAL WISCONSIN...

.OVERNIGHT TEMPERATURES OVER CENTRAL MINNESOTA AND PARTS OF WEST 
CENTRAL WISCONSIN WILL LOWER INTO THE LOWER TO MIDDLE 30S BY
DAYBREAK THURSDAY. LIGHT WINDS...CLEAR SKIES AND DRY AIRMASS WILL
CAUSE THE FORMATION OF WIDESPREAD FROST AS TEMPERATURES LOWER
INTO THE 30S.

AREAS OF FROST ARE LIKELY GENERALLY NORTH OF A LINE FROM AROUND
GLENWOOD...TO ST CLOUD...TO RICE LAKE.

AREA NURSERIES AND GARDENERS SHOULD HAD ALREADY TAKEN NECESSARY
PRECAUTIONS FOR TEMPERATURE SENSITIVE PLANTS.

MNZ041>045-048>053-WIZ014-031300-
/O.CON.KMPX.FR.Y.0003.081003T0700Z-081003T1300Z/
DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-POPE-STEARNS-BENTON-
SHERBURNE-ISANTI-CHISAGO-POLK-
INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE...
LITTLE FALLS...PRINCETON...MORA...GLENWOOD...ST. CLOUD...FOLEY...
ELK RIVER...CAMBRIDGE...CENTER CITY...AMERY...BALSAM LAKE
113 AM CDT FRI OCT 3 2008

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

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

CLEAR SKIES AND LIGHT WINDS WILL SENT THE TEMPERATURES TUMBLING
INTO THE LOWER TO MIDDLE 30S BY DAYBREAK THURSDAY. THESE CONDITION
WILL CAUSE SOME WIDESPREAD FROST.

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

$$

Nearby

Frost Advisories in Minnesota, 2008Frost Advisories in Wisconsin, 2008Every frost advisory in 2008

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.