Alert archive / Minnesota / Frost Advisories in 2015

Frost Advisory 7, NWS Twin Cities, MN

October 1, 20157 counties in Minnesota; 7 counties in Wisconsin

NWS Twin Cities, MN issued this frost advisory at Oct 1, 2015, 2:24 PM CDT for 7 counties in Minnesota; 7 counties in Wisconsin. It took effect at Oct 2, 2015, 1:00 AM CDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Oct 1, 2015, 2:24 PM CDT (19:24 UTC)
In effect from
Oct 2, 2015, 1:00 AM CDT
Expired
Oct 2, 2015, 8:00 AM CDT
In force
7 hr
Issued by
NWS Twin Cities, MN

Counties Benton County, MN, Chisago County, MN, Isanti County, MN, Kanabec County, MN, Mille Lacs County, MN, Morrison County, MN, Todd County, MN, Barron County, WI, Chippewa County, WI, Dunn County, WI, Eau Claire County, WI, Polk County, WI, Rusk County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 95 km from the middle of the area, began a volume at 19:25 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, 7.4 hours before the alert went out and 97 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 2015-10-01Temperature 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 2015-10-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -87 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
1345 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-87 m²/s²
0-3 km storm-relative helicity
-104 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.

073 
WWUS73 KMPX 011924
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
224 PM CDT THU OCT 1 2015

...FROST TONIGHT FOR PORTIONS OF CENTRAL MINNESOTA AND WESTERN
WISCONSIN...

.A FROST ADVISORY HAS BEEN ISSUED FROM 1 AM TO 8 AM CDT FRIDAY
FOR AREAS OF CENTRAL MINNESOTA AND WESTERN WISCONSIN ALONG AND
NORTH OF A LINE FROM LONG PRAIRIE TO EAU CLAIRE. AREAS OF FROST
ARE EXPECTED AS TEMPERATURES DROP INTO THE LOWER AND MIDDLE 30S.

MNZ042>045-050-052-053-WIZ014>016-023-025-027-028-020330-
/O.NEW.KMPX.FR.Y.0007.151002T0600Z-151002T1300Z/
TODD-MORRISON-MILLE LACS-KANABEC-BENTON-ISANTI-CHISAGO-POLK-
BARRON-RUSK-ST. CROIX-DUNN-CHIPPEWA-EAU CLAIRE-
INCLUDING THE CITIES OF...LONG PRAIRIE...LITTLE FALLS...
PRINCETON...MORA...FOLEY...CAMBRIDGE...CENTER CITY...OSCEOLA...
RICE LAKE...LADYSMITH...HUDSON...MENOMONIE...CHIPPEWA FALLS...
EAU CLAIRE
224 PM CDT THU OCT 1 2015

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

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

* LOCATION...PORTIONS OF CENTRAL MINNESOTA AND WESTERN WISCONSIN.

* TEMPERATURES...OVERNIGHT LOWS IN THE LOWER TO MIDDLE 30S.

* IMPACTS...OUTDOOR PLANTS AND VEGETATION COULD BE DAMAGED OR
  KILLED IF NOT PROTECTED OR BROUGHT INDOORS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
3 follow-up statements
189 
WWUS73 KMPX 020143
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
843 PM CDT THU OCT 1 2015

...FROST TONIGHT FOR PORTIONS OF CENTRAL MINNESOTA AND WESTERN
WISCONSIN...

.A FROST ADVISORY HAS BEEN ISSUED FROM 1 AM TO 8 AM CDT FRIDAY
FOR AREAS OF CENTRAL MINNESOTA AND WESTERN WISCONSIN ALONG AND
NORTH OF A LINE FROM LONG PRAIRIE TO EAU CLAIRE. AREAS OF FROST
ARE EXPECTED AS TEMPERATURES DROP INTO THE LOWER AND MIDDLE 30S.

MNZ042>045-050-052-053-WIZ014>016-023-025-027-028-020945-
/O.CON.KMPX.FR.Y.0007.151002T0600Z-151002T1300Z/
TODD-MORRISON-MILLE LACS-KANABEC-BENTON-ISANTI-CHISAGO-POLK-
BARRON-RUSK-ST. CROIX-DUNN-CHIPPEWA-EAU CLAIRE-
INCLUDING THE CITIES OF...LONG PRAIRIE...LITTLE FALLS...
PRINCETON...MORA...FOLEY...CAMBRIDGE...CENTER CITY...OSCEOLA...
RICE LAKE...LADYSMITH...HUDSON...MENOMONIE...CHIPPEWA FALLS...
EAU CLAIRE
843 PM CDT THU OCT 1 2015

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 8 AM CDT
FRIDAY...

* LOCATION...PORTIONS OF CENTRAL MINNESOTA AND WESTERN WISCONSIN.

* TEMPERATURES...LOWER TO MIDDLE 30S.

* IMPACTS...OUTDOOR PLANTS AND VEGETATION COULD BE DAMAGED OR 
  KILLED IF NOT PROTECTED OR BROUGHT INDOORS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

JRB
304 
WWUS73 KMPX 020816
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
316 AM CDT FRI OCT 2 2015

...FROST EARLY THIS MORNING FOR PORTIONS OF CENTRAL MINNESOTA AND
WESTERN WISCONSIN...

.A FROST ADVISORY REMAINS IN EFFECT THROUGH 8 AM THIS MORNING FOR
AREAS OF CENTRAL MINNESOTA AND WESTERN WISCONSIN ALONG AND NORTH
OF A LINE FROM LONG PRAIRIE TO EAU CLAIRE. FROST IS EXPECTED TO
FORM AS TEMPERATURES HOLD IN THE 30S THROUGH 8 AM. 

MNZ042>045-050-052-053-WIZ014>016-023-025-027-028-021300-
/O.CON.KMPX.FR.Y.0007.000000T0000Z-151002T1300Z/
TODD-MORRISON-MILLE LACS-KANABEC-BENTON-ISANTI-CHISAGO-POLK-
BARRON-RUSK-ST. CROIX-DUNN-CHIPPEWA-EAU CLAIRE-
INCLUDING THE CITIES OF...LONG PRAIRIE...LITTLE FALLS...
PRINCETON...MORA...FOLEY...CAMBRIDGE...CENTER CITY...OSCEOLA...
RICE LAKE...LADYSMITH...HUDSON...MENOMONIE...CHIPPEWA FALLS...
EAU CLAIRE
316 AM CDT FRI OCT 2 2015

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

* LOCATION...PORTIONS OF CENTRAL MINNESOTA AND WESTERN WISCONSIN.

* TEMPERATURES...LOWER TO MIDDLE 30S.

* IMPACTS...OUTDOOR PLANTS AND VEGETATION COULD BE DAMAGED OR 
  KILLED IF NOT PROTECTED OR BROUGHT INDOORS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

JLT
916 
WWUS73 KMPX 021302
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
802 AM CDT FRI OCT 2 2015

...FROST ADVISORY WILL EXPIRE AT 8 AM...

.TEMPERATURES WILL CONTINUE TO WARM INTO THE 40S THIS
MORNING...ENDING ANY THREAT FOR FROST.

MNZ042>045-050-052-053-WIZ014>016-023-025-027-028-021415-
/O.EXP.KMPX.FR.Y.0007.000000T0000Z-151002T1300Z/
TODD-MORRISON-MILLE LACS-KANABEC-BENTON-ISANTI-CHISAGO-POLK-
BARRON-RUSK-ST. CROIX-DUNN-CHIPPEWA-EAU CLAIRE-
INCLUDING THE CITIES OF...LONG PRAIRIE...LITTLE FALLS...
PRINCETON...MORA...FOLEY...CAMBRIDGE...CENTER CITY...OSCEOLA...
RICE LAKE...LADYSMITH...HUDSON...MENOMONIE...CHIPPEWA FALLS...
EAU CLAIRE
802 AM CDT FRI OCT 2 2015

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

TEMPERATURES WILL CONTINUE TO WARM INTO THE 40S THIS
MORNING...ENDING ANY THREAT FOR FROST.

$$

Nearby

Frost Advisories in Minnesota, 2015Frost Advisories in Wisconsin, 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.