Alert archive / Minnesota / Freezing Rain Advisories in 2011

Freezing Rain Advisory 2, NWS Twin Cities, MN

December 29, 201111 counties in Minnesota

NWS Twin Cities, MN issued this freezing rain advisory at Dec 29, 2011, 9:17 PM CST for 11 counties in Minnesota. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Dec 29, 2011, 9:17 PM CST (03:17 UTC)
Expired
Dec 30, 2011, 3:15 AM CST
In force
6 hr
Issued by
NWS Twin Cities, MN

Counties Blue Earth County, MN, Brown County, MN, Chippewa County, MN, Faribault County, MN, Lac qui Parle County, MN, Martin County, MN, Redwood County, MN, Stevens County, MN, Swift County, MN, Watonwan County, MN, Yellow Medicine County, MN

The radar

The Minneapolis radar (KMPX), 129 km from the middle of the area, began a volume at 03:15 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, 3.3 hours before the alert went out and 127 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 2011-12-30Temperature 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 2011-12-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 4 square meters per square second.19395878Sfc1 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
1287 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
4 m²/s²
0-3 km storm-relative helicity
52 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.

867 
WWUS43 KMPX 300317
WSWMPX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
917 PM CST THU DEC 29 2011

...WINTRY MIX OF PRECIPITATION EXPECTED TONIGHT...

.A FREEZING RAIN ADVISORY HAS BEEN ISSUED FOR AREAS NEAR AND WEST
OF A LINE FROM MORRIS...TO WILLMAR...TO NEW ULM...TO BLUE EARTH.
THIS IS DUE TO THE POTENTIAL OF FREEZING RAIN AND A FINE COATING
OF ICE TONIGHT. JUST TO THE EAST OF THESE AREAS IN PORTIONS OF
CENTRAL AND SOUTHERN MINNESOTA...THE RAIN IS EXPECTED TO CHANGE
OVER TO SNOW. THEREFORE...A WINTER WEATHER ADVISORY HAS BEEN
ISSUED DUE TO THE THREAT FOR LIGHT ICE AND SNOW ACCUMULATIONS. THE
PRECIPITATION TONIGHT COULD MAKE FOR A SLIPPERY COMMUTE TOMORROW
MORNING.

MNZ047-054>056-064-073-074-082-083-091-092-301130-
/O.NEW.KMPX.ZR.Y.0002.111230T0317Z-111230T1200Z/
STEVENS-LAC QUI PARLE-SWIFT-CHIPPEWA-YELLOW MEDICINE-REDWOOD-
BROWN-WATONWAN-BLUE EARTH-MARTIN-FARIBAULT-
INCLUDING THE CITIES OF...MORRIS...MADISON...BENSON...
MONTEVIDEO...GRANITE FALLS...REDWOOD FALLS...NEW ULM...
ST. JAMES...MANKATO...FAIRMONT...BLUE EARTH
917 PM CST THU DEC 29 2011

...FREEZING RAIN ADVISORY IN EFFECT UNTIL 6 AM CST FRIDAY...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED
A FREEZING RAIN ADVISORY...WHICH IS IN EFFECT UNTIL 6 AM CST
FRIDAY. 

* TIMING...FREEZING RAIN WILL CONTINUE MOVING INTO WESTERN
  MINNESOTA TONIGHT. LIGHT ICE ACCUMULATIONS ARE EXPECTED BETWEEN
  10 PM CST TONIGHT AND 4 AM CST FRIDAY. 

* ICE ACCUMULATIONS...FROM TRACE AMOUNTS TO A FEW HUNDREDTHS OF AN
  INCH.

* OTHER IMPACTS...UNTREATED ROADS AND OTHER SURFACES MAY BE
  SLIPPERY FOR THE FRIDAY MORNING COMMUTE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZING RAIN ADVISORY MEANS THAT PERIODS OF FREEZING RAIN OR
FREEZING DRIZZLE WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS. SLOW DOWN AND USE CAUTION WHILE DRIVING.

&&

$$

MNZ041-048-057-065-067-075-076-084-085-093-301130-
/O.NEW.KMPX.WW.Y.0042.111230T0317Z-111230T1200Z/
DOUGLAS-POPE-KANDIYOHI-RENVILLE-SIBLEY-NICOLLET-LE SUEUR-WASECA-
STEELE-FREEBORN-
INCLUDING THE CITIES OF...ALEXANDRIA...GLENWOOD...WILLMAR...
OLIVIA...GAYLORD...ST. PETER...LE SUEUR...WASECA...OWATONNA...
ALBERT LEA
917 PM CST THU DEC 29 2011

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 AM CST FRIDAY...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED
A WINTER WEATHER ADVISORY FOR THE COMBINATION OF FREEZING RAIN AND
LIGHT SNOW...WHICH IS IN EFFECT UNTIL 6 AM CST FRIDAY.

* TIMING...A MIXTURE OF LIGHT FREEZING RAIN AND SNOW IS EXPECTED
  AFTER MIDNIGHT TONIGHT AND BEFORE 6 AM CST FRIDAY.

* MAIN IMPACT...ICY ROADS ARE POSSIBLE TONIGHT AND TOMORROW
  MORNING DUE TO THE COMBINATION OF SNOW AND ICE. LIGHT ICE
  ACCUMULATIONS AND/OR 1 TO 2 INCHES OF SNOW IS POSSIBLE.

* OTHER IMPACTS...UNTREATED ROADS AND OTHER SURFACES MAY BE
  SLIPPERY FOR THE FRIDAY MORNING COMMUTE.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$
CLF
1 follow-up statement
189 
WWUS43 KMPX 300915
WSWMPX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
315 AM CST FRI DEC 30 2011

...WINTRY PRECIPITATION TAPERING OFF THIS MORNING...

.A WINTER WEATHER ADVISORY IS NOW IN EFFECT THROUGH 9 AM CST...
GENERALLY ALONG AND SOUTH OF A LINE FROM RENVILLE THROUGH GAYLORD
AND LE CENTER TO OWATONNA. PERIODS OF SNOW... MIXED WITH SLEET AND
SOME FREEZING RAIN AT TIMES... WILL CONTINUE THROUGH DAYBREAK...
TAPERING OFF FROM WEST TO EAST DURING THE MID MORNING HOURS. SNOW
ACCUMULATIONS OF A DUSTING TO 2 INCHES ARE EXPECTED... ALONG WITH
SOME MINOR SLEET ACCUMULATION AND THE POSSIBILITY OF A THIN GLAZE
OF ICE. EXERCISE CAUTION IF VENTURING OUT THIS MORNING... AS ROADS
AND WALKWAYS WILL BE SLIPPERY.

MNZ073-074-082-083-091-092-301500-
/O.CAN.KMPX.ZR.Y.0002.000000T0000Z-111230T1200Z/
/O.EXB.KMPX.WW.Y.0042.000000T0000Z-111230T1500Z/
REDWOOD-BROWN-WATONWAN-BLUE EARTH-MARTIN-FARIBAULT-
INCLUDING THE CITIES OF...REDWOOD FALLS...NEW ULM...ST. JAMES...
MANKATO...FAIRMONT...BLUE EARTH
315 AM CST FRI DEC 30 2011

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 9 AM CST THIS
MORNING...
...FREEZING RAIN ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED
A WINTER WEATHER ADVISORY FOR SNOW... SLEET... AND LIGHT FREEZING
RAIN... WHICH IS IN EFFECT UNTIL 9 AM CST THIS MORNING. THE
FREEZING RAIN ADVISORY HAS BEEN CANCELLED.

* TIMING...PERIODS OF SNOW... MIXED WITH SLEET AND SOME FREEZING
  RAIN AT TIMES... WILL CONTINUE THROUGH DAYBREAK... TAPERING OFF
  FROM WEST TO EAST DURING THE MID MORNING HOURS.

* MAIN IMPACT...SNOWFALL ACCUMULATIONS OF A DUSTING TO 2 INCHES...
  ALONG WITH SOME MINOR SLEET ACCUMULATION AND THE POSSIBILITY OF
  A THIN GLAZE OF ICE.

* OTHER IMPACTS...UNTREATED ROADS AND OTHER SURFACES WILL BE
  SLIPPERY FOR THE MORNING COMMUTE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

MNZ047-054>056-064-301015-
/O.CAN.KMPX.ZR.Y.0002.000000T0000Z-111230T1200Z/
STEVENS-LAC QUI PARLE-SWIFT-CHIPPEWA-YELLOW MEDICINE-
INCLUDING THE CITIES OF...MORRIS...MADISON...BENSON...
MONTEVIDEO...GRANITE FALLS
315 AM CST FRI DEC 30 2011

...FREEZING RAIN ADVISORY IS CANCELLED...

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

SOME LIGHT SNOW WILL PERSIST THROUGH AROUND DAYBREAK... WITH BRIEF
PERIODS OF LIGHT SLEET POSSIBLE. UNTREATED ROADS AND OTHER
SURFACES MAY BE SLIPPERY FOR THE MORNING COMMUTE.

$$

MNZ041-048-057-301015-
/O.CAN.KMPX.WW.Y.0042.000000T0000Z-111230T1200Z/
DOUGLAS-POPE-KANDIYOHI-
INCLUDING THE CITIES OF...ALEXANDRIA...GLENWOOD...WILLMAR
315 AM CST FRI DEC 30 2011

...WINTER WEATHER ADVISORY IS CANCELLED...

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

SOME LIGHT SNOW WILL PERSIST THROUGH AROUND DAYBREAK... WITH BRIEF
PERIODS OF LIGHT SLEET POSSIBLE. UNTREATED ROADS AND OTHER
SURFACES MAY BE SLIPPERY FOR THE MORNING COMMUTE.

$$

MNZ065-067-075-076-084-085-093-301500-
/O.EXT.KMPX.WW.Y.0042.000000T0000Z-111230T1500Z/
RENVILLE-SIBLEY-NICOLLET-LE SUEUR-WASECA-STEELE-FREEBORN-
INCLUDING THE CITIES OF...OLIVIA...GAYLORD...ST. PETER...
LE SUEUR...WASECA...OWATONNA...ALBERT LEA
315 AM CST FRI DEC 30 2011

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 9 AM CST THIS
MORNING...

THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 9 AM CST THIS
MORNING. 

* TIMING...PERIODS OF SNOW... MIXED WITH SLEET AND SOME FREEZING
  RAIN AT TIMES... WILL CONTINUE THROUGH DAYBREAK... TAPERING OFF
  FROM WEST TO EAST DURING THE MID MORNING HOURS.

* MAIN IMPACT...SNOWFALL ACCUMULATIONS OF A DUSTING TO 2 INCHES...
  ALONG WITH SOME MINOR SLEET ACCUMULATION AND THE POSSIBILITY OF
  A THIN GLAZE OF ICE.

* OTHER IMPACTS...UNTREATED ROADS AND OTHER SURFACES WILL BE
  SLIPPERY FOR THE MORNING COMMUTE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 29, 9:17 PM CSTWinter Weather AdvisoryMPXBlue Earth, Brown, Douglas, Faribault, Freeborn, Kandiyohi and 10 more12 hr

Nearby

Freezing Rain Advisories in Minnesota, 2011Every freezing rain advisory in 2011

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.