Alert archive / Minnesota / Frost Advisories in 2016

Frost Advisory 6, NWS Twin Cities, MN

September 13, 2016Morrison County, Todd County, Minnesota

NWS Twin Cities, MN issued this frost advisory at Sep 13, 2016, 2:17 PM CDT for Morrison County, Todd County, Minnesota. It took effect at Sep 14, 2016, 3:00 AM CDT. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Sep 13, 2016, 2:17 PM CDT (19:17 UTC)
In effect from
Sep 14, 2016, 3:00 AM CDT
Expired
Sep 14, 2016, 8:00 AM CDT
In force
5 hr
Issued by
NWS Twin Cities, MN

Counties Morrison County, MN, Todd County, MN

The radar

The Minneapolis radar (KMPX), 155 km from the middle of the area, began a volume at 19:19 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 12:00Z, 7.3 hours before the alert went out and 153 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 2016-09-13Temperature 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 2016-09-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 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
753 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
73 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

967 
WWUS73 KMPX 131917
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
217 PM CDT TUE SEP 13 2016

...FIRST FROST OF THE SEASON ACROSS PARTS OF NORTH CENTRAL
MINNESOTA...

.HIGH PRESSURE WILL MOVE INTO THE AREA TONIGHT. SKIES WILL CLEAR
AND WINDS WILL BECOME CALM...AND ALLOW TEMPERATURES TO FALL INTO
THE MID 30S.

MNZ042-043-140330-
/O.NEW.KMPX.FR.Y.0006.160914T0800Z-160914T1300Z/
TODD-MORRISON-
INCLUDING THE CITIES OF...LONG PRAIRIE...LITTLE FALLS
217 PM CDT TUE SEP 13 2016

...FROST ADVISORY IN EFFECT FROM 3 AM TO 8 AM CDT WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN TWIN CITIES/CHANHASSEN HAS ISSUED
A FROST ADVISORY...WHICH IS IN EFFECT FROM 3 AM TO 8 AM CDT
WEDNESDAY. 

* TEMPERATURE...33 TO 36

* IMPACTS...FROST MAY 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.

&&

$$
2 follow-up statements
356 
WWUS73 KMPX 140103
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
803 PM CDT TUE SEP 13 2016

MNZ042-043-140915-
/O.CON.KMPX.FR.Y.0006.160914T0800Z-160914T1300Z/
TODD-MORRISON-
INCLUDING THE CITIES OF...LONG PRAIRIE...LITTLE FALLS
803 PM CDT TUE SEP 13 2016

...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 8 AM CDT
WEDNESDAY...

* TEMPERATURES...33 TO 36

* TIMING...EARLY MORNING HOURS. 

* IMPACTS...FROST MAY DAMAGE OR KILL SENSITIVE VEGETATION IF NOT
  COVERED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
544 
WWUS73 KMPX 140755
NPWMPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
255 AM CDT WED SEP 14 2016

MNZ042-043-141300-
/O.CON.KMPX.FR.Y.0006.160914T0800Z-160914T1300Z/
TODD-MORRISON-
INCLUDING THE CITIES OF...LONG PRAIRIE...LITTLE FALLS
255 AM CDT WED SEP 14 2016

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM CDT THIS MORNING...

* TEMPERATURES...33 TO 36

* TIMING...EARLY MORNING HOURS.

* IMPACTS...FROST MAY DAMAGE OR KILL SENSITIVE VEGETATION IF NOT 
  COVERED. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Nearby

Frost Advisories in Minnesota, 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.