Alert archive / Minnesota / Frost Advisories in 2019

Frost Advisory 2, NWS Twin Cities, MN

October 3, 201916 counties in Minnesota

NWS Twin Cities, MN issued this frost advisory at Oct 3, 2019, 3:28 PM CDT for 16 counties in Minnesota. It took effect at Oct 4, 2019, 1:00 AM CDT. It was in force for .

The area

The counties it named.

The facts

Issued
Oct 3, 2019, 3:28 PM CDT (20:28 UTC)
In effect from
Oct 4, 2019, 1:00 AM CDT
Expired
Oct 4, 2019, 12:39 AM CDT
In force
Issued by
NWS Twin Cities, MN

Counties Brown County, MN, Chippewa County, MN, Douglas County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Martin County, MN, Meeker County, MN, Pope County, MN, Redwood County, MN, Renville 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), 130 km from the middle of the area, began a volume at 20:28 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 128 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 2019-10-03Temperature 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 2019-10-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -103 square meters per square second.1939587897117136Sfc1 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
2286 m above ground
0-6 km bulk shear
91 kt
0-1 km storm-relative helicity
-103 m²/s²
0-3 km storm-relative helicity
100 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

116 
WWUS73 KMPX 032028
NPWMPX

URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
328 PM CDT Thu Oct 3 2019

MNZ041-042-047>049-054>058-064-065-073-074-082-091-040430-
/O.NEW.KMPX.FR.Y.0002.191004T0600Z-191004T1400Z/
Douglas-Todd-Stevens-Pope-Stearns-Lac Qui Parle-Swift-Chippewa-
Kandiyohi-Meeker-Yellow Medicine-Renville-Redwood-Brown-Watonwan-
Martin-
Including the cities of Alexandria, Long Prairie, Morris, 
Glenwood, St Cloud, Madison, Benson, Montevideo, Willmar, 
Litchfield, Granite Falls, Olivia, Redwood Falls, New Ulm, 
St James, and Fairmont
328 PM CDT Thu Oct 3 2019

...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM CDT FRIDAY...

* WHAT...Temperatures as low as 35 will result in frost 
  formation.

* WHERE...Portions of central, south central, southwest and west 
  central Minnesota.

* WHEN...From 1 AM to 9 AM CDT Friday.

* IMPACTS...Frost could damage sensitive outdoor vegetation if
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$
2 follow-up statements
391 
WWUS73 KMPX 040226
NPWMPX

URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
926 PM CDT Thu Oct 3 2019

MNZ041-042-047>049-054>058-064-065-073-074-082-091-041030-
/O.CON.KMPX.FR.Y.0002.191004T0600Z-191004T1400Z/
Douglas-Todd-Stevens-Pope-Stearns-Lac Qui Parle-Swift-Chippewa-
Kandiyohi-Meeker-Yellow Medicine-Renville-Redwood-Brown-Watonwan-
Martin-
Including the cities of Alexandria, Long Prairie, Morris, 
Glenwood, St Cloud, Madison, Benson, Montevideo, Willmar, 
Litchfield, Granite Falls, Olivia, Redwood Falls, New Ulm, 
St James, and Fairmont
926 PM CDT Thu Oct 3 2019

...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM CDT
FRIDAY...

* WHAT...Temperatures as low as 35 will result in frost 
  formation.

* WHERE...Portions of central, south central, southwest and west 
  central Minnesota.

* WHEN...From 1 AM to 9 AM CDT Friday.

* IMPACTS...Frost could damage sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$
943 
WWUS73 KMPX 040539
NPWMPX

URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
1239 AM CDT Fri Oct 4 2019

MNZ041-042-047>049-054>058-064-065-073-074-082-091-040645-
/O.CAN.KMPX.FR.Y.0002.191004T0600Z-191004T1400Z/
Douglas-Todd-Stevens-Pope-Stearns-Lac Qui Parle-Swift-Chippewa-
Kandiyohi-Meeker-Yellow Medicine-Renville-Redwood-Brown-Watonwan-
Martin-
Including the cities of Alexandria, Long Prairie, Morris, 
Glenwood, St Cloud, Madison, Benson, Montevideo, Willmar, 
Litchfield, Granite Falls, Olivia, Redwood Falls, New Ulm, 
St James, and Fairmont
1239 AM CDT Fri Oct 4 2019

...FROST ADVISORY IS CANCELLED...

The National Weather Service in Twin Cities/Chanhassen has
cancelled the Frost Advisory. 

Widespread cloud cover will keep temperatures too warm for frost
development later tonight. Therefore, the Frost Advisory is 
cancelled.

$$

Borghoff

Nearby

Frost Advisories in Minnesota, 2019Every frost advisory in 2019

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.