Alert archive / Minnesota / Freeze Warnings in 2018

Freeze Warning 2, NWS Twin Cities, MN

October 11, 201813 counties in Minnesota

NWS Twin Cities, MN issued this freeze warning at Oct 11, 2018, 3:05 AM CDT for 13 counties in Minnesota. It took effect at Oct 11, 2018, 7:04 PM CDT. It was in force for 14 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Oct 11, 2018, 3:05 AM CDT (08:05 UTC)
In effect from
Oct 11, 2018, 7:04 PM CDT
Expired
Oct 12, 2018, 9:00 AM CDT
In force
14 hr
Issued by
NWS Twin Cities, MN

Counties Blue Earth County, MN, Brown County, MN, Faribault County, MN, Freeborn County, MN, Goodhue County, MN, Le Sueur County, MN, Martin County, MN, Nicollet County, MN, Redwood County, MN, Rice County, MN, Steele County, MN, Waseca County, MN, Watonwan County, MN

The radar

The Minneapolis radar (KMPX), 89 km from the middle of the area, began a volume at 08:04 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, 8.1 hours before the alert went out and 89 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 2018-10-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 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 2018-10-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -16 square meters per square second.1939587897Sfc1 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
No buoyant parcel
Mixed-layer LCL
511 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
-16 m²/s²
0-3 km storm-relative helicity
88 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

027 
WWUS73 KMPX 110805
NPWMPX

URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
305 AM CDT Thu Oct 11 2018

MNZ073>078-082>085-091>093-111615-
/O.NEW.KMPX.FZ.W.0002.181012T0600Z-181012T1400Z/
Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-
Waseca-Steele-Martin-Faribault-Freeborn-
Including the cities of Redwood Falls, New Ulm, St Peter, 
Le Sueur, Faribault, Red Wing, St James, Mankato, Waseca, 
Owatonna, Fairmont, Blue Earth, and Albert Lea
305 AM CDT Thu Oct 11 2018

...FREEZE WARNING IN EFFECT FROM 1 AM TO 9 AM CDT FRIDAY...

The National Weather Service in Twin Cities/Chanhassen has issued
a Freeze Warning, which is in effect from 1 AM to 9 AM CDT
Friday. 

* TEMPERATURES...upper 20s to near 30 degrees.

* TIMING...1 AM to 9 AM Friday morning.

* IMPACTS...Outdoor plants will be damaged or killed if not 
  protected.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Freeze Warning means sub-freezing temperatures are imminent or
highly likely. These conditions will kill crops and other
sensitive vegetation.

&&

$$
3 follow-up statements
092 
WWUS73 KMPX 111546
NPWMPX

URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
1046 AM CDT Thu Oct 11 2018

MNZ073>078-082>085-091>093-120000-
/O.CON.KMPX.FZ.W.0002.181012T0600Z-181012T1400Z/
Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-
Waseca-Steele-Martin-Faribault-Freeborn-
Including the cities of Redwood Falls, New Ulm, St Peter, 
Le Sueur, Faribault, Red Wing, St James, Mankato, Waseca, 
Owatonna, Fairmont, Blue Earth, and Albert Lea
1046 AM CDT Thu Oct 11 2018

...FREEZE WARNING REMAINS IN EFFECT FROM 1 AM TO 9 AM CDT
FRIDAY...

* TEMPERATURES...upper 20s to near 30 degrees.

* TIMING...1 AM to 9 AM Friday morning.

* IMPACTS...Outdoor plants will be damaged or killed if not 
  protected. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Freeze Warning means sub-freezing temperatures are imminent or
highly likely. These conditions will kill crops and other
sensitive vegetation.

&&

$$
978 
WWUS73 KMPX 120004
NPWMPX

URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
704 PM CDT Thu Oct 11 2018

MNZ073>078-082>085-091>093-120815-
/O.EXT.KMPX.FZ.W.0002.181012T0004Z-181012T1400Z/
Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-
Waseca-Steele-Martin-Faribault-Freeborn-
Including the cities of Redwood Falls, New Ulm, St Peter, 
Le Sueur, Faribault, Red Wing, St James, Mankato, Waseca, 
Owatonna, Fairmont, Blue Earth, and Albert Lea
704 PM CDT Thu Oct 11 2018

...FREEZE WARNING NOW IN EFFECT UNTIL 9 AM CDT FRIDAY...

* TEMPERATURES...upper 20s to near 30 degrees.

* TIMING...now to 9 AM Friday morning.

* IMPACTS...Outdoor plants will be damaged or killed if not 
  protected. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Freeze Warning means sub-freezing temperatures are imminent or
highly likely. These conditions will kill crops and other
sensitive vegetation.

&&

$$

Borghoff
054 
WWUS73 KMPX 121411
NPWMPX

URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
911 AM CDT Fri Oct 12 2018

MNZ073>078-082>085-091>093-121515-
/O.EXP.KMPX.FZ.W.0002.000000T0000Z-181012T1400Z/
Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-
Waseca-Steele-Martin-Faribault-Freeborn-
Including the cities of Redwood Falls, New Ulm, St Peter, 
Le Sueur, Faribault, Red Wing, St James, Mankato, Waseca, 
Owatonna, Fairmont, Blue Earth, and Albert Lea
911 AM CDT Fri Oct 12 2018

...FREEZE WARNING HAS EXPIRED...

Temperatures will continue to rise over the freezing mark this
morning. Therefore, the Freeze Warning has been allowed to expire.

$$

Nearby

Freeze Warnings in Minnesota, 2018Every freeze warning in 2018

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.