Alert archive / Wisconsin / Frost Advisories in 2013

Frost Advisory 2, NWS Twin Cities, MN

May 23, 20139 counties in Wisconsin; 4 counties in Minnesota

NWS Twin Cities, MN issued this frost advisory at May 23, 2013, 5:19 AM CDT for 9 counties in Wisconsin; 4 counties in Minnesota. It took effect at May 24, 2013, 12:00 AM CDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
May 23, 2013, 5:19 AM CDT (10:19 UTC)
In effect from
May 24, 2013, 12:00 AM CDT
Expired
May 24, 2013, 7:00 AM CDT
In force
7 hr
Issued by
NWS Twin Cities, MN

Counties Chisago County, MN, Isanti County, MN, Kanabec County, MN, Washington County, MN, Barron County, WI, Chippewa County, WI, Dunn County, WI, Eau Claire County, WI, Pepin County, WI, Pierce County, WI, Polk County, WI, Rusk County, WI, Saint Croix County, WI

The radar

The Minneapolis radar (KMPX), 110 km from the middle of the area, began a volume at 10:19 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, 10.3 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 2013-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 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 2013-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 square meters per square second.1939Sfc1 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
1 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
573 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
28 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.

720 
WWUS73 KMPX 231019
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
519 AM CDT THU MAY 23 2013

...TEMPERATURES NEAR FREEZING TONIGHT...

.TEMPERATURES ARE EXPECTED TO DROP TO NEAR FREEZING AFTER MIDNIGHT
TONIGHT ACROSS PORTIONS OF WESTERN WISCONSIN. AS A RESULT...FROST
IS EXPECTED. TENDER VEGETATION MAY BE DAMAGED IF PRECAUTIONS ARE
NOT TAKEN TO PROTECT OUTDOOR PLANTS.

WIZ014>016-025-027-028-231830-
/O.NEW.KMPX.FR.Y.0002.130524T0500Z-130524T1200Z/
POLK-BARRON-RUSK-DUNN-CHIPPEWA-EAU CLAIRE-
INCLUDING THE CITIES OF...AMERY...BALSAM LAKE...RICE LAKE...
BARRON...LADYSMITH...MENOMONIE...BOYCEVILLE...CHIPPEWA FALLS...
BLOOMER...EAU CLAIRE...ALTOONA
519 AM CDT THU MAY 23 2013

...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM CDT
FRIDAY...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED
A FROST ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO
7 AM CDT FRIDAY. 

* TEMPERATURE: LOWER 30S WITH UPPER 20S POSSIBLE.

* IMPACTS: COLD TEMPERATURES WILL LEAD TO WIDESPREAD FROST
  FORMATION. IF NOT COVERED...THIS FROST COULD CAUSE DAMAGE TO
  SENSITIVE VEGETATION...INCLUDING EARLY SEASON FLOWERS OR GARDEN
  VEGETABLE PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
4 follow-up statements
339 
WWUS73 KMPX 231506
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
ISSUED BY NATIONAL WEATHER SERVICE LA CROSSE WI
1006 AM CDT THU MAY 23 2013

...TEMPERATURES FALLING TO NEAR FREEZING TONIGHT...

.UNDER CLEAR SKIES AND LIGHT WINDS...TEMPERATURES ARE EXPECTED TO DROP TO
NEAR FREEZING AFTER MIDNIGHT TONIGHT ACROSS PORTIONS OF WESTERN
WISCONSIN. AS A RESULT...FROST IS EXPECTED. TENDER VEGETATION MAY
BE DAMAGED IF PRECAUTIONS ARE NOT TAKEN TO PROTECT OUTDOOR PLANTS.

WIZ014>016-025-027-028-232315-
/O.CON.KMPX.FR.Y.0002.130524T0500Z-130524T1200Z/
POLK-BARRON-RUSK-DUNN-CHIPPEWA-EAU CLAIRE-
INCLUDING THE CITIES OF...AMERY...BALSAM LAKE...RICE LAKE...
BARRON...LADYSMITH...MENOMONIE...BOYCEVILLE...CHIPPEWA FALLS...
BLOOMER...EAU CLAIRE...ALTOONA
1006 AM CDT THU MAY 23 2013

...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM
CDT FRIDAY...

A FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM
CDT FRIDAY. 

* TEMPERATURES OVERNIGHT ARE EXPECTED TO DIP IN TO THE LOWER 30S...
  WITH UPPER 20S POSSIBLE.

* COLD TEMPERATURES WILL LEAD TO WIDESPREAD FROST FORMATION. THIS
  FROST COULD CAUSE DAMAGE TO SENSITIVE VEGETATION IF NOT
  COVERED...INCLUDING EARLY SEASON FLOWERS OR GARDEN VEGETABLE
  PLANTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
BAUMGARDT
757 
WWUS73 KMPX 231953
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
253 PM CDT THU MAY 23 2013

...TEMPERATURES FALLING TO NEAR FREEZING TONIGHT...

.UNDER CLEAR SKIES AND LIGHT WINDS...TEMPERATURES ARE EXPECTED TO
DROP TO NEAR FREEZING AFTER MIDNIGHT TONIGHT ACROSS PORTIONS OF
WESTERN WISCONSIN AND EAST CENTRAL MINNESOTA. AS A RESULT...
FROST IS EXPECTED... AND A FROST ADVISORY IS IN EFFECT OVERNIGHT
NORTH AND EAST OF A LINE FROM NEAR CAMBRIDGE TO RED WING. TENDER
VEGETATION MAY BE DAMAGED IF PRECAUTIONS ARE NOT TAKEN TO PROTECT
OUTDOOR PLANTS.

MNZ045-052-053-063-WIZ023-024-026-241200-
/O.EXA.KMPX.FR.Y.0002.130524T0500Z-130524T1200Z/
KANABEC-ISANTI-CHISAGO-WASHINGTON-ST. CROIX-PIERCE-PEPIN-
INCLUDING THE CITIES OF...MORA...CAMBRIDGE...CENTER CITY...
STILLWATER...HUDSON...NEW RICHMOND...RIVER FALLS...PRESCOTT...
DURAND...PEPIN
253 PM CDT THU MAY 23 2013

...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM CDT
FRIDAY...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED
A FROST ADVISORY...WHICH IS IN EFFECT FROM MIDNIGHT TONIGHT TO
7 AM CDT FRIDAY. 

* TEMPERATURES OVERNIGHT ARE EXPECTED TO DIP IN TO THE LOWER 
  30S... WITH UPPER 20S POSSIBLE. 

* COLD TEMPERATURES WILL LEAD TO WIDESPREAD FROST FORMATION. 
  THIS FROST COULD CAUSE DAMAGE TO SENSITIVE VEGETATION IF NOT 
  COVERED...INCLUDING EARLY SEASON FLOWERS OR GARDEN VEGETABLE 
  PLANTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

WIZ014>016-025-027-028-241200-
/O.CON.KMPX.FR.Y.0002.130524T0500Z-130524T1200Z/
POLK-BARRON-RUSK-DUNN-CHIPPEWA-EAU CLAIRE-
INCLUDING THE CITIES OF...AMERY...BALSAM LAKE...RICE LAKE...
BARRON...LADYSMITH...MENOMONIE...BOYCEVILLE...CHIPPEWA FALLS...
BLOOMER...EAU CLAIRE...ALTOONA
253 PM CDT THU MAY 23 2013

...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM
CDT FRIDAY...

A FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM
CDT FRIDAY. 

* TEMPERATURES OVERNIGHT ARE EXPECTED TO DIP IN TO THE LOWER 
  30S... WITH UPPER 20S POSSIBLE. 

* COLD TEMPERATURES WILL LEAD TO WIDESPREAD FROST FORMATION. 
  THIS FROST COULD CAUSE DAMAGE TO SENSITIVE VEGETATION IF NOT 
  COVERED...INCLUDING EARLY SEASON FLOWERS OR GARDEN VEGETABLE 
  PLANTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
269 
WWUS73 KMPX 240126
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
826 PM CDT THU MAY 23 2013

...TEMPERATURES FALLING TO NEAR FREEZING TONIGHT...

.UNDER CLEAR SKIES AND LIGHT WINDS...TEMPERATURES ARE EXPECTED TO
DROP TO NEAR FREEZING AFTER MIDNIGHT TONIGHT ACROSS PORTIONS OF
WESTERN WISCONSIN AND EAST CENTRAL MINNESOTA. AS A RESULT...
FROST IS EXPECTED... AND A FROST ADVISORY IS IN EFFECT OVERNIGHT
NORTH AND EAST OF A LINE FROM NEAR CAMBRIDGE TO RED WING. TENDER
VEGETATION MAY BE DAMAGED IF PRECAUTIONS ARE NOT TAKEN TO PROTECT
OUTDOOR PLANTS.

MNZ045-052-053-063-WIZ014>016-023>028-241200-
/O.CON.KMPX.FR.Y.0002.130524T0500Z-130524T1200Z/
KANABEC-ISANTI-CHISAGO-WASHINGTON-POLK-BARRON-RUSK-ST. CROIX-
PIERCE-DUNN-PEPIN-CHIPPEWA-EAU CLAIRE-
INCLUDING THE CITIES OF...MORA...CAMBRIDGE...CENTER CITY...
STILLWATER...AMERY...BALSAM LAKE...RICE LAKE...BARRON...
LADYSMITH...HUDSON...NEW RICHMOND...RIVER FALLS...PRESCOTT...
MENOMONIE...BOYCEVILLE...DURAND...PEPIN...CHIPPEWA FALLS...
BLOOMER...EAU CLAIRE...ALTOONA
826 PM CDT THU MAY 23 2013

...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM
CDT FRIDAY...

A FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 7 AM
CDT FRIDAY. 

* TEMPERATURES OVERNIGHT ARE EXPECTED TO DIP IN TO THE LOWER
  30S...WITH UPPER 20S POSSIBLE.

* COLD TEMPERATURES WILL LEAD TO WIDESPREAD FROST FORMATION. 
  THIS FROST COULD CAUSE DAMAGE TO SENSITIVE VEGETATION IF NOT 
  COVERED...INCLUDING EARLY SEASON FLOWERS OR GARDEN VEGETABLE 
  PLANTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
379 
WWUS73 KMPX 240757
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
257 AM CDT FRI MAY 24 2013

...TEMPERATURES FALLING TO NEAR FREEZING EARLY THIS MORNING...

.A FROST ADVISORY REMAINS IN EFFECT THROUGH DAYBREAK FOR AREAS
NORTH AND EAST OF THE TWIN CITIES AS WELL AS FOR ALL OF WEST
CENTRAL WISCONSIN. TEMPERATURES WILL DROP TO NEAR THE FREEZING
MARK EARLY THIS MORNING ACROSS THE ADVISORY AREA WITH FROST
OCCURRING. TENDER VEGETATION MAY BE DAMAGED IF PRECAUTIONS ARE NOT
TAKEN TO PROTECT OUTDOOR PLANTS.

MNZ045-052-053-063-WIZ014>016-023>028-241200-
/O.CON.KMPX.FR.Y.0002.000000T0000Z-130524T1200Z/
KANABEC-ISANTI-CHISAGO-WASHINGTON-POLK-BARRON-RUSK-ST. CROIX-
PIERCE-DUNN-PEPIN-CHIPPEWA-EAU CLAIRE-
INCLUDING THE CITIES OF...MORA...CAMBRIDGE...CENTER CITY...
STILLWATER...AMERY...BALSAM LAKE...RICE LAKE...BARRON...
LADYSMITH...HUDSON...NEW RICHMOND...RIVER FALLS...PRESCOTT...
MENOMONIE...BOYCEVILLE...DURAND...PEPIN...CHIPPEWA FALLS...
BLOOMER...EAU CLAIRE...ALTOONA
257 AM CDT FRI MAY 24 2013

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

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

* TEMPERATURES FALLING TO THE LOWER 30S.

* COLD TEMPERATURES WILL LEAD TO WIDESPREAD FROST FORMATION. 
  THIS FROST COULD CAUSE DAMAGE TO SENSITIVE VEGETATION IF NOT 
  COVERED...INCLUDING EARLY SEASON FLOWERS OR GARDEN VEGETABLE 
  PLANTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Nearby

Frost Advisories in Wisconsin, 2013Frost Advisories in Minnesota, 2013Every frost advisory in 2013

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.