Alert archive / Minnesota / Snow Advisories in 2007

Snow Advisory 7, NWS Twin Cities, MN

December 8, 20077 counties in Minnesota

NWS Twin Cities, MN issued this snow advisory at Dec 8, 2007, 3:27 AM CST for 7 counties in Minnesota. It took effect at Dec 8, 2007, 6:00 PM CST. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Dec 8, 2007, 3:27 AM CST (09:27 UTC)
In effect from
Dec 8, 2007, 6:00 PM CST
Expired
Dec 9, 2007, 3:32 AM CST
In force
10 hr
Issued by
NWS Twin Cities, MN

Counties Blue Earth County, MN, Faribault County, MN, Freeborn County, MN, Martin County, MN, Steele County, MN, Waseca County, MN, Watonwan County, MN

The radar

The Minneapolis radar (KMPX), 112 km from the middle of the area, began a volume at 09:26 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, 9.5 hours before the alert went out and 112 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 2007-12-08Temperature 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 00:00Z on 2007-12-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 square meters per square second.1939587897Sfc1 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
1199 m above ground
0-6 km bulk shear
87 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
111 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 
WWUS43 KMPX 080927
WSWMPX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
327 AM CST SAT DEC 8 2007

...SEVERAL INCHES OF SNOW EXPECTED TONIGHT OVER SOUTH CENTRAL
MINNESOTA...

.SNOW IS EXPECTED TO DEVELOP TONIGHT OVER SOUTHERN MINNESOTA
AS AN UPPER LEVEL LOW PRESSURE SYSTEM MOVES TOWARDS THE GREAT
LAKES REGION. THE ATMOSPHERE IS FAVORABLE FOR THREE TO FOUR
INCHES OF SNOWFALL OVER SOUTH CENTRAL MINNESOTA WITH POSSIBLE
AMOUNTS TO NEAR SIX INCHES UNDER BRIEF HEAVY SNOW BANDS. 
THOUGH LIGHT SNOW MAY BEGIN LATE THIS AFTERNOON OVER THE
AREA...ACCUMULATING SNOW IS NOT EXPECTED TO START UNTIL EARLY IN
THE EVENING. SNOW WILL PERSIST INTO THE OVERNIGHT WITH
ACCUMULATIONS ENDING JUST BEFORE SUNRISE ON SUNDAY.

THE SNOW ADVISORY IN SOUTH CENTRAL MINNESOTA ENCOMPASSES AN AREA
ROUGHLY SOUTH OF U.S. HIGHWAY 14...OR ALONG AND SOUTH OF A LINE
FROM COMFREY TO MANKATO TO OWATONNA. THIS INCLUDES INTERSTATE
90. TRAVELING WITHIN THIS AREA TONIGHT MAY BECOME DIFFICULT DUE TO
SNOW ACCUMULATION AND REDUCED VISIBILITIES.


MNZ082>085-091>093-081730-
/O.NEW.KMPX.SN.Y.0007.071209T0000Z-071209T1200Z/
WATONWAN-BLUE EARTH-WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN-
INCLUDING THE CITIES OF...ST. JAMES...MANKATO...WASECA...
OWATONNA...FAIRMONT...BLUE EARTH...ALBERT LEA
327 AM CST SAT DEC 8 2007

...SNOW ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 6 AM CST
SUNDAY...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED
A SNOW ADVISORY...WHICH IS IN EFFECT FROM 6 PM THIS EVENING TO
6 AM CST SUNDAY. 

SNOW IS EXPECTED TO DEVELOP TONIGHT OVER SOUTHERN MINNESOTA
AS AN UPPER LEVEL LOW PRESSURE SYSTEM MOVES TOWARDS THE GREAT
LAKES REGION. THE ATMOSPHERE IS FAVORABLE FOR THREE TO FOUR
INCHES OF SNOWFALL OVER SOUTH CENTRAL MINNESOTA WITH POSSIBLE
AMOUNTS TO NEAR SIX INCHES UNDER BRIEF HEAVY SNOW BANDS. 
THOUGH LIGHT SNOW MAY BEGIN LATE THIS AFTERNOON OVER THE
AREA...ACCUMULATING SNOW IS NOT EXPECTED TO START UNTIL EARLY IN
THE EVENING. SNOW WILL PERSIST INTO THE OVERNIGHT WITH
ACCUMULATIONS ENDING JUST BEFORE SUNRISE ON SUNDAY.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING...INCLUDING
ALONG INTERSTATE 90.

$$
4 follow-up statements
000 
WWUS43 KMPX 081635
WSWMPX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1035 AM CST SAT DEC 8 2007

...MORE SNOW ON THE WAY FOR SOUTH CENTRAL MINNESOTA TONIGHT...

.SNOW IS EXPECTED TO DEVELOP THIS EVENING OVER SOUTHERN MINNESOTA
AS AN UPPER LEVEL LOW PRESSURE SYSTEM MOVES TOWARDS THE GREAT
LAKES REGION. AN INCREASE IN HIGH LEVEL MOISTURE IS EXPECTED TO
COMBINE WITH ENOUGH LIFT FOR A THREE TO FOUR INCHES SNOWFALL OVER
SOUTH CENTRAL MINNESOTA. ACCUMULATING SNOW IS NOT EXPECTED TO
START UNTIL THIS EVENING. HOWEVER...A FEW SNOW SHOWERS CAN NOT BE
RULED OUT AS EARLY AS THIS AFTERNOON.

THE SNOW ADVISORY IN SOUTH CENTRAL MINNESOTA ENCOMPASSES AN AREA
ROUGHLY SOUTH OF U.S. HIGHWAY 14...OR ALONG AND SOUTH OF A LINE
FROM COMFREY TO MANKATO TO OWATONNA. THIS INCLUDES INTERSTATE 90.
TRAVELING WITHIN THIS AREA TONIGHT MAY BECOME DIFFICULT DUE TO
SNOW ACCUMULATION AND REDUCED VISIBILITIES.

MNZ082>085-091>093-090045-
/O.CON.KMPX.SN.Y.0007.071209T0000Z-071209T1200Z/
WATONWAN-BLUE EARTH-WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN-
INCLUDING THE CITIES OF...ST. JAMES...MANKATO...WASECA...
OWATONNA...FAIRMONT...BLUE EARTH...ALBERT LEA
1035 AM CST SAT DEC 8 2007

...SNOW ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM
CST SUNDAY...

A SNOW ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING TO 6 AM
CST SUNDAY. 

SNOW IS EXPECTED TO DEVELOP THIS EVENING OVER SOUTHERN MINNESOTA
AS AN UPPER LEVEL LOW PRESSURE SYSTEM MOVES TOWARDS THE GREAT
LAKES REGION. AN INCREASE IN HIGH LEVEL MOISTURE IS EXPECTED TO
COMBINE WITH ENOUGH LIFT FOR A THREE TO FOUR INCHES SNOWFALL OVER
SOUTH CENTRAL MINNESOTA. ACCUMULATING SNOW IS NOT EXPECTED TO
START UNTIL THIS EVENING. HOWEVER...A FEW SNOW SHOWERS CAN NOT BE
RULED OUT AS EARLY AS THIS AFTERNOON.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING...INCLUDING
ALONG INTERSTATE 90.

$$
000 
WWUS43 KMPX 082336
WSWMPX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
536 PM CST SAT DEC 8 2007

...SNOW FOR SOUTH CENTRAL MINNESOTA TONIGHT...

.A SNOW ADVISORY REMAINS IN EFFECT TONIGHT OVER SOUTH CENTRAL
MINNESOTA...FROM ST. JAMES...MANKATO AND OWATONNA ON SOUTHWARD TO
THE IOWA BORDER. 

EARLY THIS EVENING...SNOW WAS FALLING ALONG THE I-90 CORRIDOR FROM
FAIRMONT TO ALBERT LEA. THE SNOW WAS ASSOCIATED WITH AN AREA OF
LOW PRESSURE ALOFT OVER THE CENTRAL PLAINS. THE SNOW OVER FAR
SOUTHERN MINNESOTA WILL EXPAND TO THE NORTH THIS EVENING ALONG
WITH AN INCREASE IN INTENSITY. THE SNOW WILL PERSIST THROUGH THE
NIGHT. TRAVELERS WILL FREQUENTLY ENCOUNTER VISIBILITIES LESS THAN
ONE MILE.

THE GREATEST SNOW ACCUMULATION OVERNIGHT WILL BE ALONG THE I-90
CORRIDOR...WITH UP TO 5 INCHES FORECAST. SNOW ACCUMULATION
FARTHER NORTH IN THE ST. JAMES...MANKATO AND OWATONNA AREAS WILL
BE UP TO 3 INCHES.

THE SNOW IS FORECAST TO DIMINISH QUICKLY TO LIGHT SNOW OR
FLURRIES SUNDAY MORNING.

MNZ082>085-091>093-090745-
/O.CON.KMPX.SN.Y.0007.071209T0000Z-071209T1200Z/
WATONWAN-BLUE EARTH-WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN-
INCLUDING THE CITIES OF...ST. JAMES...MANKATO...WASECA...
OWATONNA...FAIRMONT...BLUE EARTH...ALBERT LEA
536 PM CST SAT DEC 8 2007

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST SUNDAY...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST SUNDAY. 

SNOW WILL FALL TONIGHT ACROSS SOUTH CENTRAL MINNESOTA. THE
GREATEST SNOW ACCUMULATION OVERNIGHT WILL BE ALONG THE I-90
CORRIDOR...WITH UP TO 5 INCHES FORECAST. SNOW ACCUMULATION
FARTHER NORTH...IN THE ST. JAMES...MANKATO AND OWATONNA AREAS
WILL BE UP TO 3 INCHES. TRAVELERS WILL FREQUENTLY ENCOUNTER
VISIBILITIES LESS THAN ONE MILE.

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING...INCLUDING
ALONG INTERSTATE 90.

$$

RAH
000 
WWUS43 KMPX 090456
WSWMPX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1056 PM CST SAT DEC 8 2007

...A LITTLE MORE SNOW FOR SOUTH CENTRAL MINNESOTA OVERNIGHT...

.A SNOW ADVISORY REMAINS IN EFFECT OVERNIGHT ACROSS SOUTH CENTRAL
MINNESOTA...FROM ST. JAMES...MANKATO AND OWATONNA ON SOUTHWARD TO
THE IOWA BORDER.

OBSERVATIONS FROM LAW ENFORCEMENT AND WEATHER OBSERVERS INDICATE
THAT 3 TO 5 INCHES OF SNOW FELL DURING THE EVENING IN A BAND
STRETCHING FROM CEYLON ON NORTHEAST THROUGH BLUE EARTH...WELLS...
ELLENDALE...STEELE CENTER AND BLOOMING PRAIRIE.

AT 1055 PM...SNOW CONTINUED TO FALL ACROSS PORTIONS OF SOUTH
CENTRAL MINNESOTA...ALTHOUGH NOT AT THE PACE THAT WAS OBSERVED
DURING THE EVENING. RADAR INDICATED A NEW BAND OF SNOW FORMING
FROM WINDOM THROUGH ST. JAMES. THIS BAND OF SNOW WILL SPREAD
NORTHEAST INTO MANKATO BY MIDNIGHT. HOWEVER...THE INTENSITY OF THE
SNOW WILL BE LIGHT TO OCCASIONALLY MODERATE DURING THE OVERNIGHT
HOURS ACROSS THE ADVISORY AREA.

NEW SNOW ACCUMULATIONS OVERNIGHT WILL BE IN THE 1 TO 2 INCH RANGE
AND PRIMARILY FROM ST. JAMES ON EASTWARD TO OWATONNA. 

THE SNOW SHOULD BE OVER BY SUNDAY MORNING BUT MAY RETURN FOR A
TIME SUNDAY AFTERNOON AND EVENING.

MNZ082>085-091>093-091200-
/O.CON.KMPX.SN.Y.0007.000000T0000Z-071209T1200Z/
WATONWAN-BLUE EARTH-WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN-
INCLUDING THE CITIES OF...ST. JAMES...MANKATO...WASECA...
OWATONNA...FAIRMONT...BLUE EARTH...ALBERT LEA
1056 PM CST SAT DEC 8 2007

...SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST SUNDAY...

A SNOW ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST SUNDAY. 

SNOW WILL FALL OVERNIGHT ACROSS SOUTH CENTRAL MINNESOTA...BUT NOT
AT THE PACE SEEN DURING THE EVENING ALONG PORTIONS OF THE
INTERSTATE 90 CORRIDOR. NEW SNOWFALL ACCUMULATIONS OVERNIGHT WILL
BE IN THE 1 TO 2 INCH RANGE. 

A SNOW ADVISORY MEANS THAT PERIODS OF SNOW WILL CAUSE PRIMARILY
TRAVEL DIFFICULTIES. BE PREPARED FOR SNOW COVERED ROADS AND
LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING...INCLUDING
ALONG INTERSTATE 90.

$$

RAH
000 
WWUS43 KMPX 090932
WSWMPX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
332 AM CST SUN DEC 9 2007

...SNOW HAS TAPERED OFF ACROSS SOUTH CENTRAL MINNESOTA...

.SNOW HAS DECREASED IN INTENSITY ACROSS THE ADVISORY AREA EARLY
SUNDAY MORNING. LIGHT SNOW IS STILL POSSIBLE INTO THE DAY
TODAY...HOWEVER ACCUMULATIONS ARE EXPECTED TO BE UNDER ONE HALF
INCH. DIFFICULT TRAVEL CONDITIONS STILL MAY EXIST THROUGH DAYBREAK
DUE TO THE SNOW THAT FELL EARLIER SATURDAY NIGHT. SNOWFALL AMOUNTS
ON SATURDAY NIGHT WERE BETWEEN TWO AND FOUR AND A HALF INCHES.

MNZ082>085-091>093-091045-
/O.CAN.KMPX.SN.Y.0007.000000T0000Z-071209T1200Z/
WATONWAN-BLUE EARTH-WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN-
INCLUDING THE CITIES OF...ST. JAMES...MANKATO...WASECA...
OWATONNA...FAIRMONT...BLUE EARTH...ALBERT LEA
332 AM CST SUN DEC 9 2007

...SNOW ADVISORY IS CANCELLED...

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

SNOW HAS DECREASED IN INTENSITY ACROSS THE ADVISORY AREA EARLY
SUNDAY MORNING. LIGHT SNOW IS STILL POSSIBLE INTO THE DAY
SUNDAY...HOWEVER ACCUMULATIONS ARE EXPECTED TO BE UNDER ONE HALF
INCH. DIFFICULT TRAVEL CONDITIONS STILL MAY EXIST THROUGH
DAYBREAK DUE TO THE SNOW THAT FELL EARLIER SATURDAY NIGHT.
SNOWFALL AMOUNTS ON SATURDAY NIGHT WERE BETWEEN TWO AND FOUR AND A
HALF INCHES.

$$

WFO MPX

Nearby

Snow Advisories in Minnesota, 2007Every snow advisory in 2007

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.