Alert archive / Minnesota / Freeze Watches in 2021

Freeze Watch 1, NWS Twin Cities, MN

May 27, 202116 counties in Minnesota; Barron County, Polk County, Rusk County, Wisconsin

NWS Twin Cities, MN issued this freeze watch at May 27, 2021, 4:09 AM CDT for 16 counties in Minnesota; Barron County, Polk County, Rusk County, Wisconsin. It took effect at May 28, 2021, 1:00 AM CDT. It was in force for .

The area

The counties it named.

The facts

Issued
May 27, 2021, 4:09 AM CDT (09:09 UTC)
In effect from
May 28, 2021, 1:00 AM CDT
Expired
May 27, 2021, 7:59 PM CDT
In force
Issued by
NWS Twin Cities, MN

Counties Benton County, MN, Chippewa County, MN, Chisago County, MN, Douglas County, MN, Isanti County, MN, Kanabec County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Mille Lacs County, MN, Morrison County, MN, Pope County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Yellow Medicine County, MN, Barron County, WI, Polk County, WI, Rusk County, WI

The radar

The Minneapolis radar (KMPX), 94 km from the middle of the area, began a volume at 09:11 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, 9.2 hours before the alert went out and 92 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 2021-05-27Temperature 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 00:00Z on 2021-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1948 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
44 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

781 
WWUS73 KMPX 270909
NPWMPX

URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
409 AM CDT Thu May 27 2021

MNZ041>045-050-052-053-WIZ014>016-272115-
/O.NEW.KMPX.FZ.A.0001.210528T0600Z-210528T1200Z/
Douglas-Todd-Morrison-Mille Lacs-Kanabec-Benton-Isanti-Chisago-
Polk-Barron-Rusk-
Including the cities of Alexandria, Long Prairie, Little Falls, 
Princeton, Mora, Sauk Rapids, Cambridge, Center City, Osceola, 
Rice Lake, and Ladysmith
409 AM CDT Thu May 27 2021

...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
MORNING...

* WHAT...Sub-freezing temperatures possible.

* WHERE...Portions of central Minnesota and northwest Wisconsin.

* WHEN...From late tonight through Friday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing of uninsulated outdoor water pipes, they should be 
wrapped, drained, or allowed to drip slowly.

&&

$$
2 follow-up statements
773 
WWUS73 KMPX 271945
NPWMPX

URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
245 PM CDT Thu May 27 2021

MNZ041>045-050-280500-
/O.UPG.KMPX.FZ.A.0001.210528T0600Z-210528T1200Z/
/O.NEW.KMPX.FZ.W.0003.210528T0900Z-210528T1200Z/
Douglas-Todd-Morrison-Mille Lacs-Kanabec-Benton-
Including the cities of Alexandria, Long Prairie, Little Falls, 
Princeton, Mora, and Sauk Rapids
245 PM CDT Thu May 27 2021

...FREEZE WARNING IN EFFECT FROM 4 AM TO 7 AM CDT FRIDAY...

* WHAT...Sub-freezing temperatures as low as 32 expected.

* WHERE...Douglas, Todd, Morrison, Mille Lacs, Kanabec and 
  Benton Counties.

* WHEN...From 4 AM to 7 AM CDT Friday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

MNZ047>049-054>057-064-280500-
/O.EXB.KMPX.FZ.A.0001.210528T0900Z-210528T1200Z/
Stevens-Pope-Stearns-Lac Qui Parle-Swift-Chippewa-Kandiyohi-
Yellow Medicine-
Including the cities of Morris, Glenwood, St Cloud, Madison, 
Benson, Montevideo, Willmar, and Granite Falls
245 PM CDT Thu May 27 2021

...FREEZE WATCH IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
MORNING...

* WHAT...Sub-freezing temperatures as low as 33 possible.

* WHERE...Stevens, Pope, Stearns, Lac Qui Parle, Swift, 
  Chippewa, Kandiyohi and Yellow Medicine Counties.

* WHEN...From late tonight through Friday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

MNZ052-053-WIZ014>016-280500-
/O.EXT.KMPX.FZ.A.0001.210528T0900Z-210528T1200Z/
Isanti-Chisago-Polk-Barron-Rusk-
Including the cities of Cambridge, Center City, Osceola, 
Rice Lake, and Ladysmith
245 PM CDT Thu May 27 2021

...FREEZE WATCH NOW IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
MORNING...

* WHAT...Sub-freezing temperatures possible.

* WHERE...Portions of central Minnesota and northwest Wisconsin.

* WHEN...From late tonight through Friday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$
388 
WWUS73 KMPX 280059
NPWMPX

URGENT - WEATHER MESSAGE
National Weather Service Twin Cities/Chanhassen MN
759 PM CDT Thu May 27 2021

MNZ047>049-052>057-064-WIZ014>016-280200-
/O.CAN.KMPX.FZ.A.0001.210528T0900Z-210528T1200Z/
Stevens-Pope-Stearns-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-
Kandiyohi-Yellow Medicine-Polk-Barron-Rusk-
Including the cities of Morris, Glenwood, St Cloud, Cambridge, 
Center City, Madison, Benson, Montevideo, Willmar, Granite Falls,
Osceola, Rice Lake, and Ladysmith
759 PM CDT Thu May 27 2021

...FREEZE WATCH IS CANCELLED...

Temperatures will likely remain above freezing tonight due to
cloud cover lingering until very late tonight. Therefore, the
Freeze Watch has been cancelled.

$$

MNZ041>045-050-280900-
/O.CON.KMPX.FZ.W.0003.210528T0900Z-210528T1200Z/
Douglas-Todd-Morrison-Mille Lacs-Kanabec-Benton-
Including the cities of Alexandria, Long Prairie, Little Falls, 
Princeton, Mora, and Sauk Rapids
759 PM CDT Thu May 27 2021

...FREEZE WARNING REMAINS IN EFFECT FROM 4 AM TO 7 AM CDT
FRIDAY...

* WHAT...Sub-freezing temperatures as low as 31 expected.

* WHERE...Morrison, Douglas, Benton, Todd, Kanabec and Mille 
  Lacs Counties.

* WHEN...From 4 AM to 7 AM CDT Friday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

Borghoff

The office that day

Everything else NWS Twin Cities, MN issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 27, 2:45 PM CDTFreeze WarningMPXBenton, Douglas, Kanabec, Mille Lacs, Morrison, Todd16 hr

Nearby

Freeze Watches in Minnesota, 2021Freeze Watches in Wisconsin, 2021Every freeze watch in 2021

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.