Alert archive / Minnesota / Frost Advisories in 2014

Frost Advisory 2, NWS Twin Cities, MN

May 15, 201421 counties in Minnesota

NWS Twin Cities, MN issued this frost advisory at May 15, 2014, 3:27 PM CDT for 21 counties in Minnesota. It took effect at May 16, 2014, 1:00 AM CDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
May 15, 2014, 3:27 PM CDT (20:27 UTC)
In effect from
May 16, 2014, 1:00 AM CDT
Expired
May 16, 2014, 7:00 AM CDT
In force
6 hr
Issued by
NWS Twin Cities, MN
All 21 counties

Blue Earth County, MN, Brown County, MN, Chippewa County, MN, Douglas County, MN, Faribault County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Martin County, MN, McLeod County, MN, Meeker County, MN, Nicollet County, MN, Pope County, MN, Redwood County, MN, Renville County, MN, Sibley County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Watonwan County, MN, Yellow Medicine County, MN

The radar

The Minneapolis radar (KMPX), 110 km from the middle of the area, began a volume at 20:29 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 12:00Z, 8.5 hours before the alert went out and 107 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 12:00Z on 2014-05-15Temperature 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 12:00Z on 2014-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -26 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
1084 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-26 m²/s²
0-3 km storm-relative helicity
6 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.

968 
WWUS73 KMPX 152027
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
327 PM CDT THU MAY 15 2014

...AREAS OF FROST DEVELOPING TONIGHT...

.AFTER A CHILLY DAY...SKIES ARE EXPECTED TO CLEAR THIS EVENING
WITH LOW TEMPERATURES FALLING INTO THE LOWER 30S OVERNIGHT. WITH
LIGHT WINDS...AREAS OF FROST ARE LIKELY TO DEVELOP WHICH COULD
POSE AN ISSUE FOR TENDER VEGETATION.

MNZ041-042-047>049-054>058-064>067-073>075-082-083-091-092-160430-
/O.NEW.KMPX.FR.Y.0002.140516T0600Z-140516T1200Z/
DOUGLAS-TODD-STEVENS-POPE-STEARNS-LAC QUI PARLE-SWIFT-CHIPPEWA-
KANDIYOHI-MEEKER-YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-REDWOOD-
BROWN-NICOLLET-WATONWAN-BLUE EARTH-MARTIN-FARIBAULT-
INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE...MORRIS...
GLENWOOD...ST. CLOUD...MADISON...BENSON...MONTEVIDEO...WILLMAR...
LITCHFIELD...GRANITE FALLS...OLIVIA...HUTCHINSON...GAYLORD...
REDWOOD FALLS...NEW ULM...ST. PETER...ST. JAMES...MANKATO...
FAIRMONT...BLUE EARTH
327 PM CDT THU MAY 15 2014

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

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED
A FROST ADVISORY...WHICH IS IN EFFECT FROM 1 AM TO 7 AM CDT
FRIDAY. 

* LOW TEMPERATURES...LOWER TO MIDDLE 30S.

* IMPACTS...UNPROTECTED TENDER VEGETATION MAY BE DAMAGED WITH THE
  FROST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

BORGHOFF
1 follow-up statement
314 
WWUS73 KMPX 160438
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1138 PM CDT THU MAY 15 2014

...AREAS OF FROST DEVELOPING EARLY THIS MORNING...

.CLEARING SKIES ARE EXPECTED EARLY THIS MORNING WITH TEMPERATURES
FALLING INTO THE LOWER TO MIDDLE 30S. DUE TO LIGHT WINDS...AREAS OF
FROST ARE LIKELY TO DEVELOP WHICH COULD POSE A PROBLEM FOR TENDER
VEGETATION.

MNZ041-042-047>049-054>058-064>067-073>075-082-083-091-092-161200-
/O.CON.KMPX.FR.Y.0002.140516T0600Z-140516T1200Z/
DOUGLAS-TODD-STEVENS-POPE-STEARNS-LAC QUI PARLE-SWIFT-CHIPPEWA-
KANDIYOHI-MEEKER-YELLOW MEDICINE-RENVILLE-MCLEOD-SIBLEY-REDWOOD-
BROWN-NICOLLET-WATONWAN-BLUE EARTH-MARTIN-FARIBAULT-
INCLUDING THE CITIES OF...ALEXANDRIA...LONG PRAIRIE...MORRIS...
GLENWOOD...ST. CLOUD...MADISON...BENSON...MONTEVIDEO...WILLMAR...
LITCHFIELD...GRANITE FALLS...OLIVIA...HUTCHINSON...GAYLORD...
REDWOOD FALLS...NEW ULM...ST. PETER...ST. JAMES...MANKATO...
FAIRMONT...BLUE EARTH
1138 PM CDT THU MAY 15 2014

...FROST ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT FRIDAY...

A FROST ADVISORY REMAINS IN EFFECT UNTIL 7 AM CDT FRIDAY. 

* LOW TEMPERATURES...LOWER TO MIDDLE 30S.

* IMPACTS...UNPROTECTED TENDER VEGETATION MAY BE DAMAGED WITH 
  THE FROST. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Nearby

Frost Advisories in Minnesota, 2014Every frost advisory in 2014

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.