Alert archive / Minnesota / Frost Advisories in 2006

Frost Advisory 2, NWS Twin Cities, MN

September 9, 2006Barron County, Polk County, Rusk County, Wisconsin; 7 counties in Minnesota

NWS Twin Cities, MN issued this frost advisory at Sep 9, 2006, 1:54 PM CDT for Barron County, Polk County, Rusk County, Wisconsin; 7 counties in Minnesota. It took effect at Sep 10, 2006, 1:00 AM CDT. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Sep 9, 2006, 1:54 PM CDT (18:54 UTC)
In effect from
Sep 10, 2006, 1:00 AM CDT
Expired
Sep 10, 2006, 3:06 AM CDT
In force
2 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, Polk County, WI, Rusk County, WI

The radar

The Minneapolis radar (KMPX), 101 km from the middle of the area, began a volume at 18:59 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, 6.9 hours before the alert went out and 101 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 2006-09-09Temperature 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 2006-09-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 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
716 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
70 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 091854
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
154 PM CDT SAT SEP 9 2006

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

.A CANADIAN HIGH PRESSURE SYSTEM SITUATED OVER THE WESTERN GREAT
LAKES REGION THIS SATURDAY WILL PROVIDE THE IDEAL COMBINATION OF
LIGHT WINDS...VERY DRY AIR AND CLEAR SKIES FOR A RAPID DROP IN
TEMPERATURES OVERNIGHT. CONSEQUENTLY...WIDESPREAD FROST IS
EXPECTED BY DAWN SUNDAY OVER PART OF CENTRAL MINNESOTA AND WEST
CENTRAL WISCONSIN.

MNZ042>045-050-052-053-WIZ014>016-100300-
/O.NEW.KMPX.FR.Y.0002.060910T0600Z-060910T1200Z/
TODD-MORRISON-MILLE LACS-KANABEC-BENTON-ISANTI-CHISAGO-POLK-
BARRON-RUSK-
INCLUDING THE CITIES OF...LONG PRAIRIE...LITTLE FALLS...
PRINCETON...MORA...FOLEY...CAMBRIDGE...CENTER CITY...AMERY...
BALSAM LAKE...RICE LAKE...BARRON...LADYSMITH
154 PM CDT SAT SEP 9 2006

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

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

WIDESPREAD FROST IS EXPECTED TONIGHT ACROSS PART OF CENTRAL
MINNESOTA AND PART OF WEST CENTRAL WISCONSIN. LIGHT WINDS AND
MOSTLY CLEAR SKIES WILL CREATE FAVORABLE CONDITIONS FOR
TEMPERATURES TO FALL INTO THE LOWER TO MID 30S. SOME FAVORABLE
LOCATIONS...ESPECIALLY SHELTERED LOW LYING AREAS...COULD SEE
READINGS DIP JUST BELOW FREEZING. 

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

$$
2 follow-up statements
000 
WWUS73 KMPX 100305
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1005 PM CDT SAT SEP 9 2006

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

.HIGH PRESSURE OVER THE GREAT LAKES WILL PROVIDE MAINLY CLEAR
SKIES AND LIGHT WINDS OVERNIGHT TO PORTIONS OF CENTRAL MINNESOTA
AND WEST CENTRAL WISCONSIN. FROST IS EXPECTED TO OCCUR MAINLY
ALONG AND NORTH OF A LINE FROM LONG PRAIRIE THROUGH CAMBRIDGE TO
LADYSMITH...AS TEMPERATURES DROP INTO THE MIDDLE 30S BY SUNDAY
MORNING.

MNZ042>045-050-052-053-WIZ014>016-101115-
/O.CON.KMPX.FR.Y.0002.060910T0600Z-060910T1200Z/
TODD-MORRISON-MILLE LACS-KANABEC-BENTON-ISANTI-CHISAGO-POLK-
BARRON-RUSK-
INCLUDING THE CITIES OF...LONG PRAIRIE...LITTLE FALLS...
PRINCETON...MORA...FOLEY...CAMBRIDGE...CENTER CITY...AMERY...
BALSAM LAKE...RICE LAKE...BARRON...LADYSMITH
1005 PM CDT SAT SEP 9 2006

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

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

FROST IS EXPECTED TONIGHT ACROSS PORTIONS OF CENTRAL MINNESOTA
AND WEST CENTRAL WISCONSIN...MAINLY ALONG AND NORTH OF A LINE FROM
LONG PRAIRIE THROUGH CAMBRIDGE TO LADYSMITH. LIGHT WINDS AND
MOSTLY CLEAR SKIES WILL CREATE FAVORABLE CONDITIONS FOR
TEMPERATURES TO FALL INTO THE MIDDLE 30S. 

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

$$

RAH
000 
WWUS73 KMPX 100806
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
306 AM CDT SUN SEP 10 2006

...FROST ADVISORY HAS BEEN CANCELLED...

.THE FROST ADVISORY THAT WAS PREVIOUSLY IN EFFECT THIS MORNING FOR
LOCATIONS TO THE NORTH OF A LINE FROM LONG PRAIRIE...TO
CAMBRIDGE...AND LADYSMITH HAS BEEN CANCELLED. THIS MORNINGS
TEMPERATURES ARE EXPECTED TO REMAIN IN THE LOW 40S...WHICH WILL
SIGNIFICANTLY REDUCE THE CHANCES OF WIDESPREAD FROST OCCURRING IN
THESE AREAS.

MNZ042>045-050-052-053-WIZ014>016-100915-
/O.CAN.KMPX.FR.Y.0002.000000T0000Z-060910T1200Z/
TODD-MORRISON-MILLE LACS-KANABEC-BENTON-ISANTI-CHISAGO-POLK-
BARRON-RUSK-
INCLUDING THE CITIES OF...LONG PRAIRIE...LITTLE FALLS...
PRINCETON...MORA...FOLEY...CAMBRIDGE...CENTER CITY...AMERY...
BALSAM LAKE...RICE LAKE...BARRON...LADYSMITH
306 AM CDT SUN SEP 10 2006

...FROST ADVISORY IS CANCELLED...

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

THIS MORNINGS TEMPERATURES ARE EXPECTED TO REMAIN IN THE LOW
40S...WHICH WILL SIGNIFICANTLY REDUCE THE CHANCES OF WIDESPREAD
FROST OCCURRING IN THESE AREAS.

$$

KAT

Nearby

Frost Advisories in Minnesota, 2006Frost Advisories in Wisconsin, 2006Every frost advisory in 2006

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.