Alert archive / Wisconsin / Frost Advisories in 2016

Frost Advisory 2, NWS La Crosse, WI

May 4, 201610 counties in Wisconsin

NWS La Crosse, WI issued this frost advisory at May 4, 2016, 2:57 AM CDT for 10 counties in Wisconsin. It took effect at May 5, 2016, 1:00 AM CDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
May 4, 2016, 2:57 AM CDT (07:57 UTC)
In effect from
May 5, 2016, 1:00 AM CDT
Expired
May 5, 2016, 7:00 AM CDT
In force
6 hr
Issued by
NWS La Crosse, WI

Counties Adams County, WI, Clark County, WI, Jackson County, WI, Juneau County, WI, La Crosse County, WI, Monroe County, WI, Richland County, WI, Taylor County, WI, Trempealeau County, WI, Vernon County, WI

The radar

The La Crosse radar (KARX), 57 km from the middle of the area, began a volume at 08:01 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

Green Bay/Straub, WI (KGRB), launched 00:00Z, 8.0 hours before the alert went out and 204 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, Green Bay/Straub, WI at 00:00Z on 2016-05-04Temperature 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, Green Bay/Straub, WI at 00:00Z on 2016-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 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
2290 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
79 m²/s²
0-3 km storm-relative helicity
85 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

743 
WWUS73 KARX 040757
NPWARX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
257 AM CDT WED MAY 4 2016

...AREAS OF FROST EXPECTED IN CENTRAL AND NORTH CENTRAL WISCONSIN
LATE TONIGHT AND THURSDAY MORNING...

.THE COMBINATION OF CLEAR SKIES AND LIGHT WINDS TONIGHT WILL LEAD
TO FROST DEVELOPMENT IN THE FAVORED COLDER VALLEYS AND BOGS OF
CENTRAL WISCONSIN. THIS FROST COULD DAMAGE OR KILL FROST SENSITIVE
PLANTS.

WIZ017-029-034-042>044-041600-
/O.NEW.KARX.FR.Y.0002.160505T0600Z-160505T1200Z/
TAYLOR-CLARK-JACKSON-MONROE-JUNEAU-ADAMS-
INCLUDING THE CITIES OF...MEDFORD...NEILLSVILLE...
BLACK RIVER FALLS...SPARTA...TOMAH...MAUSTON...FRIENDSHIP
257 AM CDT WED MAY 4 2016

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

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 1 AM TO 7 AM CDT THURSDAY. 

* TEMPERATURES WILL FALL INTO THE LOWER 30S LATE TONIGHT AND
  THURSDAY MORNING.

* THIS WILL CAUSE AREAS OF FROST TO DEVELOP AFTER MIDNIGHT
  TONIGHT. THIS FROST COULD DAMAGE OR KILL FROST SENSITIVE
  VEGETATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

BOYNE
5 follow-up statements
045 
WWUS73 KARX 041519
NPWARX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
1019 AM CDT WED MAY 4 2016

...AREAS OF FROST EXPECTED IN CENTRAL WISCONSIN TONIGHT...

.THE COMBINATION OF CLEAR SKIES AND LIGHT WINDS WILL LEAD TO
FROST DEVELOPMENT IN THE FAVORED COLDER VALLEYS AND BOGS OF
CENTRAL WISCONSIN TONIGHT. THIS FROST COULD DAMAGE OR KILL
SENSITIVE PLANTS.

WIZ017-029-034-042>044-050000-
/O.CON.KARX.FR.Y.0002.160505T0600Z-160505T1200Z/
TAYLOR-CLARK-JACKSON-MONROE-JUNEAU-ADAMS-
INCLUDING THE CITIES OF...MEDFORD...NEILLSVILLE...
BLACK RIVER FALLS...SPARTA...TOMAH...MAUSTON...FRIENDSHIP
1019 AM CDT WED MAY 4 2016

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

* TEMPERATURES WILL FALL INTO THE LOWER 30S TONIGHT...WITH THE
  COLDEST TEMPERATURES EXPECTED BETWEEN 3 AM AND 6 AM.

* THIS WILL CAUSE AREAS OF FROST TO DEVELOP. THIS FROST COULD
  DAMAGE OR KILL SENSITIVE VEGETATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LAWRENCE
848 
WWUS73 KARX 042007
NPWARX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
307 PM CDT WED MAY 4 2016

...AREAS OF FROST EXPECTED TONIGHT...

.THE COMBINATION OF CLEAR SKIES AND LIGHT WINDS WILL LEAD TO
FROST DEVELOPMENT IN THE FAVORED COLDER VALLEYS AND BOGS OF
CENTRAL AND WESTERN WISCONSIN TONIGHT. THIS FROST COULD DAMAGE
OR KILL SENSITIVE PLANTS.

WIZ033-051200-
/O.EXA.KARX.FR.Y.0002.160505T0600Z-160505T1200Z/
TREMPEALEAU-
INCLUDING THE CITIES OF...ARCADIA...WHITEHALL
307 PM CDT WED MAY 4 2016

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

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 1 AM TO 7 AM CDT THURSDAY. 

* TEMPERATURES WILL FALL INTO THE LOWER 30S TONIGHT...WITH THE 
  COLDEST TEMPERATURES EXPECTED BETWEEN 3 AM AND 6 AM. 

* THIS WILL CAUSE AREAS OF FROST TO DEVELOP. THIS FROST COULD 
  DAMAGE OR KILL SENSITIVE VEGETATION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

WIZ017-029-034-042>044-051200-
/O.CON.KARX.FR.Y.0002.160505T0600Z-160505T1200Z/
TAYLOR-CLARK-JACKSON-MONROE-JUNEAU-ADAMS-
INCLUDING THE CITIES OF...MEDFORD...NEILLSVILLE...
BLACK RIVER FALLS...SPARTA...TOMAH...MAUSTON...FRIENDSHIP
307 PM CDT WED MAY 4 2016

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

* TEMPERATURES WILL FALL INTO THE LOWER 30S TONIGHT...WITH THE 
  COLDEST TEMPERATURES EXPECTED BETWEEN 3 AM AND 6 AM. 

* THIS WILL CAUSE AREAS OF FROST TO DEVELOP. THIS FROST COULD 
  DAMAGE OR KILL SENSITIVE VEGETATION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

LAWRENCE
870 
WWUS73 KARX 050204
NPWARX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
904 PM CDT WED MAY 4 2016

...AREAS OF FROST EXPECTED TONIGHT...

.FROST WILL FORM OVERNIGHT ACROSS PORTIONS OF WESTERN INTO CENTRAL
WISCONSIN. WITH CLEAR SKIES AND LIGHT WINDS...TEMPERATURES WILL
BOTTOM OUT IN THE LOWER TO MIDDLE 30S ALLOWING THE FROST TO FORM.
TENDER VEGETATION SHOULD BE PROTECTED.

WIZ041-053-055-051015-
/O.EXA.KARX.FR.Y.0002.160505T0600Z-160505T1200Z/
LA CROSSE-VERNON-RICHLAND-
INCLUDING THE CITIES OF...LA CROSSE...VIROQUA...RICHLAND CENTER
904 PM CDT WED MAY 4 2016

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

THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 1 AM TO 7 AM CDT THURSDAY. 

* TEMPERATURES WILL FALL INTO THE LOWER TO MIDDLE 30S
  TONIGHT...WITH THE COLDEST TEMPERATURES EXPECTED BETWEEN 3 AM
  AND 6 AM.

* THIS WILL CAUSE AREAS OF FROST TO DEVELOP. THIS FROST COULD 
  DAMAGE OR KILL SENSITIVE VEGETATION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

WIZ017-029-033-034-042>044-051015-
/O.CON.KARX.FR.Y.0002.160505T0600Z-160505T1200Z/
TAYLOR-CLARK-TREMPEALEAU-JACKSON-MONROE-JUNEAU-ADAMS-
INCLUDING THE CITIES OF...MEDFORD...NEILLSVILLE...ARCADIA...
WHITEHALL...BLACK RIVER FALLS...SPARTA...TOMAH...MAUSTON...
FRIENDSHIP
904 PM CDT WED MAY 4 2016

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

* TEMPERATURES WILL FALL INTO THE LOWER TO MIDDLE 30S
  TONIGHT...WITH THE COLDEST TEMPERATURES EXPECTED BETWEEN 3 AM
  AND 6 AM.

* THIS WILL CAUSE AREAS OF FROST TO DEVELOP. THIS FROST COULD 
  DAMAGE OR KILL SENSITIVE VEGETATION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

04
634 
WWUS73 KARX 050802
NPWARX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
302 AM CDT THU MAY 5 2016

...AREAS OF EXPECTED FROST EARLY THIS MORNING...

.TEMPERATURES WILL BE IN THE UPPER 20S AND LOWER 30S EARLY THIS
MORNING IN WEST CENTRAL AND CENTRAL WISCONSIN. THIS WILL CAUSE
FROST TO DEVELOP...AND THIS FROST MAY DAMAGE OR KILL FROST
SENSITIVE PLANTS.

WIZ017-029-033-034-041>044-053-055-051200-
/O.CON.KARX.FR.Y.0002.000000T0000Z-160505T1200Z/
TAYLOR-CLARK-TREMPEALEAU-JACKSON-LA CROSSE-MONROE-JUNEAU-ADAMS-
VERNON-RICHLAND-
INCLUDING THE CITIES OF...MEDFORD...NEILLSVILLE...ARCADIA...
WHITEHALL...BLACK RIVER FALLS...LA CROSSE...SPARTA...TOMAH...
MAUSTON...FRIENDSHIP...VIROQUA...RICHLAND CENTER
302 AM CDT THU MAY 5 2016

...FROST ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT THIS MORNING...

* TEMPERATURES WILL BE IN THE UPPER 20S AND LOWER 30S EARLY THIS
  MORNING. THE COLDEST TEMPERATURES ARE EXPECTED BETWEEN 3 AM AND
  6 AM.

* THIS WILL CAUSE AREAS OF FROST TO DEVELOP...AND THIS FROST
  COULD DAMAGE OR KILL SENSITIVE VEGETATION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

BOYNE
840 
WWUS73 KARX 051147
NPWARX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LA CROSSE WI
647 AM CDT THU MAY 5 2016

...FROST ADVISORY WILL EXPIRE AT 7 AM CDT THIS MORNING...

.TEMPERATURES WILL RISE RAPIDLY THIS MORNING NOW THAT THE SUN HAS
RISEN....ALLOWING ANY FROST THAT DEVELOPED OVERNIGHT TO MELT. 

WIZ017-029-033-034-041>044-053-055-051300-
/O.EXP.KARX.FR.Y.0002.000000T0000Z-160505T1200Z/
TAYLOR-CLARK-TREMPEALEAU-JACKSON-LA CROSSE-MONROE-JUNEAU-ADAMS-
VERNON-RICHLAND-
INCLUDING THE CITIES OF...MEDFORD...NEILLSVILLE...ARCADIA...
WHITEHALL...BLACK RIVER FALLS...LA CROSSE...SPARTA...TOMAH...
MAUSTON...FRIENDSHIP...VIROQUA...RICHLAND CENTER
647 AM CDT THU MAY 5 2016

...FROST ADVISORY WILL EXPIRE AT 7 AM CDT THIS MORNING...

TEMPERATURES EARLY THIS MORNING ACROSS PORTIONS OF SOUTHWEST
WISCONSIN ARE STILL IN THE UPPER 20S TO LOWER 30S...BUT WILL RISE
RAPIDLY OVER THE NEXT FEW HOURS ALLOWING THE FROST THREAT TO
DIMINISH. AS A RESULT...THE FROST ADVISORY WILL BE ALLOWED TO
EXPIRE AT 7 AM CDT.

$$

ROGERS

The office that day

Everything else NWS La Crosse, WI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 3, 7:39 PM CDTSpecial Weather StatementARXMonroe36 min
May 3, 8:04 PM CDTSpecial Weather StatementARXLa Crosse41 min
May 3, 8:44 PM CDTSpecial Weather StatementARXCrawford, Richland, Vernon61 min
May 3, 9:35 PM CDTSpecial Weather StatementARXGrant55 min

Nearby

Frost Advisories in Wisconsin, 2016Every frost advisory in 2016

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.