Alert archive / Wisconsin / Frost Advisories in 2011

Frost Advisory 4, NWS Twin Cities, MN

September 14, 20114 counties in Wisconsin

NWS Twin Cities, MN issued this frost advisory at Sep 14, 2011, 4:21 AM CDT for 4 counties in Wisconsin. It took effect at Sep 15, 2011, 12:00 AM CDT. It was in force for .

The area

The counties it named.

The facts

Issued
Sep 14, 2011, 4:21 AM CDT (09:21 UTC)
In effect from
Sep 15, 2011, 12:00 AM CDT
Expired
Sep 14, 2011, 1:35 PM CDT
In force
Issued by
NWS Twin Cities, MN

Counties Chippewa County, WI, Eau Claire County, WI, Pepin County, WI, Rusk County, WI

The radar

The La Crosse radar (KARX), 126 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, 9.4 hours before the alert went out and 169 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 2011-09-14Temperature 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 2011-09-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 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
2090 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
21 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.

747 
WWUS73 KMPX 140921
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
421 AM CDT WED SEP 14 2011

...EARLY SEASON FREEZING CONDITIONS FOR MUCH OF THE AREA
TONIGHT...

.A FREEZE WARNING REMAINS IN EFFECT FOR ALL OF CENTRAL AND
MUCH OF SOUTHERN MINNESOTA FROM MIDNIGHT TONIGHT THROUGH 8 AM
THURSDAY MORNING. THIS WARNING INCLUDES THE TWIN CITIES...
ALBERT LEA...ALEXANDRIA...MANKATO...MONTEVIDEO...MORA...RED
WING...REDWOOD FALLS...AND ST. CLOUD. THE WARNING HAS BEEN
EXTENDED TO ENCOMPASS FAR WESTERN WISCONSIN...INCLUDING
MENOMONIE...NEW RICHMOND...AND RICE LAKE. A FROST ADVISORY HAS
BEEN ISSUED FURTHER EAST FOR TONIGHT INCLUDING DURAND...EAU
CLAIRE...AND LADYSMITH.

STRONG CANADIAN HIGH PRESSURE OVER THE AREA TONIGHT WILL BRING
THE COMBINATION OF LIGHT WINDS...A CLEAR SKY...AND WELL BELOW
NORMAL TEMPERATURES. A WIDESPREAD FREEZE APPEARS DEFINITE ACROSS
MUCH OF MINNESOTA AND IS LIKELY INTO FAR WESTERN WISCONSIN.
LOW TEMPERATURES ARE EXPECTED TO BE IN THE UPPER 20S TO LOWER 30S
ACROSS MUCH OF THE AREA.

A FREEZE WARNING IS ISSUED MAINLY DURING THE GROWING SEASON.
TEMPERATURES TONIGHT ARE EXPECTED TO DROP BELOW FREEZING. THESE
CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION.

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



WIZ014-015-023>025-141730-
/O.UPG.KMPX.FZ.A.0002.110915T0500Z-110915T1300Z/
/O.EXA.KMPX.FZ.W.0001.110915T0500Z-110915T1300Z/
POLK-BARRON-ST. CROIX-PIERCE-DUNN-
INCLUDING THE CITIES OF...AMERY...BALSAM LAKE...RICE LAKE...
BARRON...HUDSON...NEW RICHMOND...RIVER FALLS...PRESCOTT...
MENOMONIE...BOYCEVILLE
421 AM CDT WED SEP 14 2011

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CDT
THURSDAY...

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES/CHANHASSEN HAS
ISSUED A FREEZE WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT
TO 8 AM CDT THURSDAY. THE FREEZE WATCH IS NO LONGER IN EFFECT.

* LOW TEMPERATURES...AROUND 30 DEGREES TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

MNZ041>045-047>070-073>078-082>085-091>093-141730-
/O.CON.KMPX.FZ.W.0001.110915T0500Z-110915T1300Z/
DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-STEVENS-POPE-STEARNS-
BENTON-SHERBURNE-ISANTI-CHISAGO-LAC QUI PARLE-SWIFT-CHIPPEWA-
KANDIYOHI-MEEKER-WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON-
YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-CARVER-SCOTT-DAKOTA-
REDWOOD-BROWN-NICOLLET-LE SUEUR-RICE-GOODHUE-WATONWAN-BLUE EARTH-
WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN-
INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE...
LITTLE FALLS...PRINCETON...MORA...MORRIS...GLENWOOD...ST. CLOUD...
FOLEY...ELK RIVER...CAMBRIDGE...CENTER CITY...MADISON...BENSON...
MONTEVIDEO...WILLMAR...LITCHFIELD...MONTICELLO...MINNEAPOLIS...
BLAINE...ST. PAUL...STILLWATER...GRANITE FALLS...OLIVIA...
HUTCHINSON...GAYLORD...CHASKA...SHAKOPEE...BURNSVILLE...
REDWOOD FALLS...NEW ULM...ST. PETER...LE SUEUR...FARIBAULT...
RED WING...ST. JAMES...MANKATO...WASECA...OWATONNA...FAIRMONT...
BLUE EARTH...ALBERT LEA
421 AM CDT WED SEP 14 2011

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM
CDT THURSDAY...

A FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM
CDT THURSDAY. 

* LOW TEMPERATURES...26 TO 30 DEGREES N MOST OUTLYING AREAS
  TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

WIZ016-026>028-141730-
/O.UPG.KMPX.FZ.A.0002.110915T0500Z-110915T1300Z/
/O.NEW.KMPX.FR.Y.0004.110915T0500Z-110915T1300Z/
RUSK-PEPIN-CHIPPEWA-EAU CLAIRE-
INCLUDING THE CITIES OF...LADYSMITH...DURAND...PEPIN...
CHIPPEWA FALLS...BLOOMER...EAU CLAIRE...ALTOONA
421 AM CDT WED SEP 14 2011

...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CDT
THURSDAY...

THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES/CHANHASSEN HAS
ISSUED A FROST ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT
TO 8 AM CDT THURSDAY. THE FREEZE WATCH IS NO LONGER IN EFFECT.

LOW TEMPERATURES...MAINLY IN THE MID 30S TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
2 follow-up statements
862 
WWUS73 KMPX 141640
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1140 AM CDT WED SEP 14 2011

...EARLY SEASON FREEZING CONDITIONS FOR MUCH OF THE AREA
TONIGHT...

.A FREEZE WARNING REMAINS IN EFFECT FOR ALL OF CENTRAL AND SOUTHERN
MINNESOTA AND PARTS OF WEST CENTRAL WISCONSIN FROM MIDNIGHT
TONIGHT THROUGH 8 AM THURSDAY MORNING. THIS WARNING INCLUDES THE
TWIN CITIES...ALBERT LEA...ALEXANDRIA...MANKATO...MONTEVIDEO...RED
WING...AND ST. CLOUD IN MN AND MENOMINEE...NEW RICHMOND...AND
RICE LAKE IN WISCONSIN. A FROST ADVISORY IS IN EFFECT FURTHER
EAST IN WISCONSIN FOR TONIGHT INCLUDING DURAND...EAU CLAIRE...AND
LADYSMITH.

STRONG CANADIAN HIGH PRESSURE OVER THE AREA TONIGHT WILL BRING
THE COMBINATION OF LIGHT WINDS...A CLEAR SKY...AND WELL BELOW
NORMAL TEMPERATURES. A WIDESPREAD FREEZE APPEARS DEFINITE ACROSS
MUCH OF MINNESOTA AND IS LIKELY INTO FAR WESTERN WISCONSIN. LOW
TEMPERATURES ARE EXPECTED TO BE IN THE MID 20S TO LOWER 30S
ACROSS MUCH OF THE AREA.

A FREEZE WARNING IS ISSUED MAINLY DURING THE GROWING SEASON.
TEMPERATURES TONIGHT ARE EXPECTED TO DROP BELOW FREEZING. THESE
CONDITIONS COULD KILL CROPS AND OTHER SENSITIVE VEGETATION.

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

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014-015-023>025-
150045-
/O.CON.KMPX.FZ.W.0001.110915T0500Z-110915T1300Z/
DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-STEVENS-POPE-STEARNS-
BENTON-SHERBURNE-ISANTI-CHISAGO-LAC QUI PARLE-SWIFT-CHIPPEWA-
KANDIYOHI-MEEKER-WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON-
YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-CARVER-SCOTT-DAKOTA-
REDWOOD-BROWN-NICOLLET-LE SUEUR-RICE-GOODHUE-WATONWAN-BLUE EARTH-
WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN-POLK-BARRON-ST. CROIX-
PIERCE-DUNN-
INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE...
LITTLE FALLS...PRINCETON...MORA...MORRIS...GLENWOOD...ST. CLOUD...
FOLEY...ELK RIVER...CAMBRIDGE...CENTER CITY...MADISON...BENSON...
MONTEVIDEO...WILLMAR...LITCHFIELD...MONTICELLO...MINNEAPOLIS...
BLAINE...ST. PAUL...STILLWATER...GRANITE FALLS...OLIVIA...
HUTCHINSON...GAYLORD...CHASKA...SHAKOPEE...BURNSVILLE...
REDWOOD FALLS...NEW ULM...ST. PETER...LE SUEUR...FARIBAULT...
RED WING...ST. JAMES...MANKATO...WASECA...OWATONNA...FAIRMONT...
BLUE EARTH...ALBERT LEA...AMERY...BALSAM LAKE...RICE LAKE...
BARRON...HUDSON...NEW RICHMOND...RIVER FALLS...PRESCOTT...
MENOMONIE...BOYCEVILLE
1140 AM CDT WED SEP 14 2011

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM
CDT THURSDAY...

A FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM
CDT THURSDAY. 

* LOW TEMPERATURES...25 TO 30 DEGREES IN MOST OUTLYING AREAS 
  TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

WIZ016-026>028-150045-
/O.CON.KMPX.FR.Y.0004.110915T0500Z-110915T1300Z/
RUSK-PEPIN-CHIPPEWA-EAU CLAIRE-
INCLUDING THE CITIES OF...LADYSMITH...DURAND...PEPIN...
CHIPPEWA FALLS...BLOOMER...EAU CLAIRE...ALTOONA
1140 AM CDT WED SEP 14 2011

...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM
CDT THURSDAY...

A FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM
CDT THURSDAY. 

LOW TEMPERATURES...MAINLY IN THE LOWER TO MID 30S TONIGHT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
837 
WWUS73 KMPX 141835
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
135 PM CDT WED SEP 14 2011

...EARLY SEASON FREEZE FOR MUCH OF THE AREA TONIGHT...

.A FREEZE WARNING IS NOW IN EFFECT FOR ALL OF CENTRAL AND SOUTHERN
MINNESOTA AND WEST CENTRAL WISCONSIN FROM MIDNIGHT TONIGHT THROUGH
8 AM THURSDAY MORNING. 

STRONG CANADIAN HIGH PRESSURE WILL SETTLE OVER THE AREA TONIGHT...
BRINGING A COMBINATION OF LIGHT WIND...A CLEAR SKY...AND WELL
BELOW NORMAL TEMPERATURES. A WIDESPREAD FREEZE APPEARS LIKELY WITH
LOW TEMPERATURES IN MOST LOCATIONS BETWEEN 25 AND 30 DEGREES.

SENSITIVE OUTDOOR PLANTS WILL BE IMPACTED TONIGHT IF LEFT
UNCOVERED.


WIZ016-026>028-150245-
/O.UPG.KMPX.FR.Y.0004.110915T0500Z-110915T1300Z/
/O.EXA.KMPX.FZ.W.0001.110915T0500Z-110915T1300Z/
RUSK-PEPIN-CHIPPEWA-EAU CLAIRE-
INCLUDING THE CITIES OF...LADYSMITH...DURAND...PEPIN...
CHIPPEWA FALLS...BLOOMER...EAU CLAIRE...ALTOONA
135 PM CDT WED SEP 14 2011

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM CDT
THURSDAY...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED
A FREEZE WARNING...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO
8 AM CDT THURSDAY. THE FROST ADVISORY IS NO LONGER IN EFFECT. 

* LOW TEMPERATURES...25 TO 30 DEGREES IN MOST OUTLYING AREAS 
  TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

MNZ041>045-047>070-073>078-082>085-091>093-WIZ014-015-023>025-
150245-
/O.CON.KMPX.FZ.W.0001.110915T0500Z-110915T1300Z/
DOUGLAS-TODD-MORRISON-MILLE LACS-KANABEC-STEVENS-POPE-STEARNS-
BENTON-SHERBURNE-ISANTI-CHISAGO-LAC QUI PARLE-SWIFT-CHIPPEWA-
KANDIYOHI-MEEKER-WRIGHT-HENNEPIN-ANOKA-RAMSEY-WASHINGTON-
YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-CARVER-SCOTT-DAKOTA-
REDWOOD-BROWN-NICOLLET-LE SUEUR-RICE-GOODHUE-WATONWAN-BLUE EARTH-
WASECA-STEELE-MARTIN-FARIBAULT-FREEBORN-POLK-BARRON-ST. CROIX-
PIERCE-DUNN-
INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE...
LITTLE FALLS...PRINCETON...MORA...MORRIS...GLENWOOD...ST. CLOUD...
FOLEY...ELK RIVER...CAMBRIDGE...CENTER CITY...MADISON...BENSON...
MONTEVIDEO...WILLMAR...LITCHFIELD...MONTICELLO...MINNEAPOLIS...
BLAINE...ST. PAUL...STILLWATER...GRANITE FALLS...OLIVIA...
HUTCHINSON...GAYLORD...CHASKA...SHAKOPEE...BURNSVILLE...
REDWOOD FALLS...NEW ULM...ST. PETER...LE SUEUR...FARIBAULT...
RED WING...ST. JAMES...MANKATO...WASECA...OWATONNA...FAIRMONT...
BLUE EARTH...ALBERT LEA...AMERY...BALSAM LAKE...RICE LAKE...
BARRON...HUDSON...NEW RICHMOND...RIVER FALLS...PRESCOTT...
MENOMONIE...BOYCEVILLE
135 PM CDT WED SEP 14 2011

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM
CDT THURSDAY...

A FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM
CDT THURSDAY. 

* LOW TEMPERATURES...25 TO 30 DEGREES IN MOST OUTLYING AREAS 
  TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS SUB-FREEZING TEMPERATURES ARE IMMINENT OR
HIGHLY LIKELY. THESE CONDITIONS WILL KILL CROPS AND OTHER
SENSITIVE VEGETATION.

&&

$$

Nearby

Frost Advisories in Wisconsin, 2011Every frost 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.