Alert archive / Minnesota / Frost Advisories in 2006

Frost Advisory 3, NWS Twin Cities, MN

September 19, 200625 counties in Minnesota; 4 counties in Wisconsin

NWS Twin Cities, MN issued this frost advisory at Sep 19, 2006, 3:29 AM CDT for 25 counties in Minnesota; 4 counties in Wisconsin. It took effect at Sep 19, 2006, 8:56 PM CDT. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Sep 19, 2006, 3:29 AM CDT (08:29 UTC)
In effect from
Sep 19, 2006, 8:56 PM CDT
Expired
Sep 20, 2006, 8:00 AM CDT
In force
11 hr
Issued by
NWS Twin Cities, MN
All 29 counties

Benton County, MN, Blue Earth County, MN, Brown County, MN, Chippewa County, MN, Chisago County, MN, Douglas County, MN, Faribault County, MN, Isanti County, MN, Kanabec County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Martin County, MN, McLeod County, MN, Meeker County, MN, Mille Lacs County, MN, Nicollet County, MN, Pope County, MN, Redwood County, MN, Renville County, MN, Sherburne County, MN, Sibley County, MN, Stevens County, MN, Swift County, MN, Watonwan County, MN, Yellow Medicine County, MN, Barron County, WI, Chippewa County, WI, Polk County, WI, Rusk County, WI

The radar

The Minneapolis radar (KMPX), 54 km from the middle of the area, began a volume at 08:28 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 00:00Z, 8.5 hours before the alert went out and 52 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 00:00Z on 2006-09-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2006-09-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 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
13 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
636 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
135 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 190829
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
329 AM CDT TUE SEP 19 2006

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

.A CANADIAN HIGH PRESSURE RIDGE EXTENDING SOUTHWARD FROM
SASKATCHEWAN INTO THE NORTHERN PLAIN STATES THIS TUESDAY MORNING IS
EXPECTED TO DRIFT INTO MINNESOTA LATER TONIGHT. THIS WILL MEAN
MUCH DRYER AIR WILL BE MOVING INTO MUCH OF WESTERN MINNESOTA LATER
TODAY. THE ARRIVAL OF MUCH DRIER AIR IN COMBINATION WITH CLEARING
SKIES AND LIGHT WINDS WILL RESULT IN A RAPID DROP IN TEMPERATURES
TONIGHT. CONSEQUENTLY...WIDESPREAD FROST IS EXPECTED BY DAWN
WEDNESDAY OVER PART OF WEST CENTRAL AND SOUTH CENTRAL MINNESOTA.

MNZ041-047-048-054>058-064>067-073>075-082-083-091-092-191630-
/O.NEW.KMPX.FR.Y.0003.060920T0600Z-060920T1300Z/
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
329 AM CDT TUE SEP 19 2006

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

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

WIDESPREAD FROST IS EXPECTED TONIGHT ACROSS PART OF WEST CENTRAL
AND SOUTH CENTRAL MINNESOTA.  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 TO JUST BELOW FREEZING.

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

$$
WET
2 follow-up statements
000 
WWUS73 KMPX 200156
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
856 PM CDT TUE SEP 19 2006

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

.A CANADIAN HIGH PRESSURE RIDGE STRETCHING THROUGH THE NORTHERN
PLAINS...IS EXPECTED TO DRIFT INTO MINNESOTA OVERNIGHT. DRIER AIR
OVER NORTHERN MINNESOTA AND NORTH DAKOTA THIS EVENING...WILL BE
MOVING INTO MUCH OF WESTERN AND CENTRAL MINNESOTA...AS WELL AS
PARTS OF WEST CENTRAL WISCONSIN LATE TONIGHT. THE COMBINATION OF
MOSTLY CLEAR SKIES AND LIGHT WINDS WILL RESULT IN A RAPID DROP IN
TEMPERATURE TONIGHT. CONSEQUENTLY... WIDESPREAD FROST IS EXPECTED
BY DAWN WEDNESDAY OVER PART OF WEST CENTRAL AND SOUTH CENTRAL
MINNESOTA AND WEST CENTRAL WISCONSIN.

MNZ044-045-050>053-WIZ014>016-027-201000-
/O.EXA.KMPX.FR.Y.0003.060920T0600Z-060920T1300Z/
MILLE LACS-KANABEC-BENTON-SHERBURNE-ISANTI-CHISAGO-POLK-BARRON-
RUSK-CHIPPEWA-
INCLUDING THE CITIES OF...PRINCETON...MORA...FOLEY...ELK RIVER...
CAMBRIDGE...CENTER CITY...AMERY...BALSAM LAKE...RICE LAKE...
BARRON...LADYSMITH...CHIPPEWA FALLS...BLOOMER
856 PM CDT TUE SEP 19 2006

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

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

WIDESPREAD FROST IS EXPECTED TONIGHT ACROSS PART OF CENTRAL
MINNESOTA AND 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 TO JUST BELOW
FREEZING.

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

$$

MNZ041>043-047>049-054>058-064>067-073>075-082-083-091-092-201000-
/O.CON.KMPX.FR.Y.0003.060920T0600Z-060920T1300Z/
DOUGLAS-TODD-MORRISON-STEVENS-POPE-STEARNS-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...LONG PRAIRIE...
LITTLE FALLS...MORRIS...GLENWOOD...ST. CLOUD...MADISON...BENSON...
MONTEVIDEO...WILLMAR...LITCHFIELD...GRANITE FALLS...OLIVIA...
HUTCHINSON...GAYLORD...REDWOOD FALLS...NEW ULM...ST. PETER...
ST. JAMES...MANKATO...FAIRMONT...BLUE EARTH
856 PM CDT TUE SEP 19 2006

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

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

WIDESPREAD FROST IS EXPECTED TONIGHT ACROSS PARTS OF CENTRAL AND
SOUTH CENTRAL MINNESOTA. 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 TO JUST BELOW FREEZING.

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

$$
JPR
000 
WWUS73 KMPX 200837
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
337 AM CDT WED SEP 20 2006

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

.WIDESPREAD FROST IS OCCURRING OVER MUCH OF WEST CENTRAL AND
SOUTHWEST MINNESOTA THIS MORNING WITH A FEW AREAS REPORTING
TEMPERATURES NEAR OR BELOW FREEZING ALONG AND SOUTHWEST OF THE
MINNESOTA RIVER VALLEY. FURTHER NORTH AND EAST...HIGHER DEWPOINTS
AND LINGERING CLOUDS PREVENTED A WIDESPREAD KILLING FROST. 

MNZ044-045-052-053-WIZ014>016-027-200945-
/O.CAN.KMPX.FR.Y.0003.000000T0000Z-060920T1300Z/
MILLE LACS-KANABEC-ISANTI-CHISAGO-POLK-BARRON-RUSK-CHIPPEWA-
INCLUDING THE CITIES OF...PRINCETON...MORA...CAMBRIDGE...
CENTER CITY...AMERY...BALSAM LAKE...RICE LAKE...BARRON...
LADYSMITH...CHIPPEWA FALLS...BLOOMER
337 AM CDT WED SEP 20 2006

...FROST ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS
CANCELLED THE FROST ADVISORY. PERSISTENT CLOUD COVER AND HIGHER
DEWPOINTS WERE ENOUGH TO KEEP TEMPERATURES IN THE MIDDLE AND UPPER
30S OVERNIGHT.

$$

MNZ041>043-047>051-054>058-064>067-073>075-082-083-091-092-201300-
/O.CON.KMPX.FR.Y.0003.000000T0000Z-060920T1300Z/
DOUGLAS-TODD-MORRISON-STEVENS-POPE-STEARNS-BENTON-SHERBURNE-
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...LONG PRAIRIE...
LITTLE FALLS...MORRIS...GLENWOOD...ST. CLOUD...FOLEY...
ELK RIVER...MADISON...BENSON...MONTEVIDEO...WILLMAR...
LITCHFIELD...GRANITE FALLS...OLIVIA...HUTCHINSON...GAYLORD...
REDWOOD FALLS...NEW ULM...ST. PETER...ST. JAMES...MANKATO...
FAIRMONT...BLUE EARTH
337 AM CDT WED SEP 20 2006

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

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

WIDESPREAD FROST IS OCCURRING THIS WEDNESDAY MORNING...ENDING THE
GROWING SEASON FOR THE YEAR. A FEW AREAS ALONG AND SOUTHWEST OF
THE MINNESOTA RIVER VALLEY WILL LIKELY SEE THE MERCURY DIP TO NEAR
30 BEFORE DAWN.



$$

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.