Alert archive / Michigan / Freeze Warnings in 2021

Freeze Warning 4, NWS Gaylord, MI

April 21, 20216 counties in Michigan

NWS Gaylord, MI issued this freeze warning at Apr 21, 2021, 3:00 PM EDT for 6 counties in Michigan. It took effect at Apr 21, 2021, 8:00 PM EDT. It was in force for 13 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
Apr 21, 2021, 3:00 PM EDT (19:00 UTC)
In effect from
Apr 21, 2021, 8:00 PM EDT
Expired
Apr 22, 2021, 9:21 AM EDT
In force
13 hr
Issued by
NWS Gaylord, MI

Counties Antrim County, MI, Benzie County, MI, Charlevoix County, MI, Grand Traverse County, MI, Leelanau County, MI, Manistee County, MI

The radar

The NCL Michigan radar (KAPX), 81 km from the middle of the area, began a volume at 19:03 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

Green Bay/Straub, WI (KGRB), launched 12:00Z, 7.0 hours before the alert went out and 191 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, Green Bay/Straub, WI at 12:00Z on 2021-04-21Temperature 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, Green Bay/Straub, WI at 12:00Z on 2021-04-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 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
943 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
55 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

277 
WWUS73 KAPX 211900
NPWAPX

URGENT - WEATHER MESSAGE
National Weather Service Gaylord MI
300 PM EDT Wed Apr 21 2021

MIZ020-021-025-026-031-099-220300-
/O.NEW.KAPX.FZ.W.0004.210422T0000Z-210422T1500Z/
Leelanau-Antrim-Benzie-Grand Traverse-Manistee-Charlevoix-
Including the cities of Northport, Mancelona, Frankfort, 
Traverse City, Manistee, and Charlevoix
300 PM EDT Wed Apr 21 2021

...FREEZE WARNING IN EFFECT FROM 8 PM THIS EVENING TO 11 AM EDT
THURSDAY...

* WHAT...Sub-freezing temperatures as low as 23 expected.

* WHERE...Leelanau, Antrim, Benzie, Grand Traverse, Manistee and 
  Charlevoix Counties.

* WHEN...From 8 PM this evening to 11 AM EDT Thursday.

* IMPACTS...Frost and freeze conditions will kill crops and other
  sensitive vegetation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. 

&&

$$
3 follow-up statements
796 
WWUS73 KAPX 220201
NPWAPX

URGENT - WEATHER MESSAGE
National Weather Service Gaylord MI
1001 PM EDT Wed Apr 21 2021

MIZ020-021-025-026-031-099-221200-
/O.CON.KAPX.FZ.W.0004.000000T0000Z-210422T1500Z/
Leelanau-Antrim-Benzie-Grand Traverse-Manistee-Charlevoix-
Including the cities of Northport, Mancelona, Frankfort, 
Traverse City, Manistee, and Charlevoix
1001 PM EDT Wed Apr 21 2021

...FREEZE WARNING REMAINS IN EFFECT UNTIL 11 AM EDT THURSDAY...

* WHAT...Sub-freezing temperatures as low as 23 expected.

* WHERE...Leelanau, Antrim, Benzie, Grand Traverse, Manistee and 
  Charlevoix Counties.

* WHEN...From 8 PM this evening to 11 AM EDT Thursday.

* IMPACTS...Frost and freeze conditions will kill crops and 
  other sensitive vegetation.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

JZ
822 
WWUS73 KAPX 220716
NPWAPX

URGENT - WEATHER MESSAGE
National Weather Service Gaylord MI
316 AM EDT Thu Apr 22 2021

MIZ020-021-025-026-031-099-221500-
/O.CON.KAPX.FZ.W.0004.000000T0000Z-210422T1500Z/
Leelanau-Antrim-Benzie-Grand Traverse-Manistee-Charlevoix-
Including the cities of Northport, Mancelona, Frankfort, 
Traverse City, Manistee, and Charlevoix
316 AM EDT Thu Apr 22 2021

...FREEZE WARNING REMAINS IN EFFECT UNTIL 11 AM EDT THIS
MORNING...

* WHAT...Sub-freezing temperatures as low as 23.

* WHERE...Leelanau, Antrim, Benzie, Grand Traverse, Manistee and 
  Charlevoix Counties.

* WHEN...Until 11 AM EDT this morning.

* 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.

&&

$$
910 
WWUS73 KAPX 221321
NPWAPX

URGENT - WEATHER MESSAGE
National Weather Service Gaylord MI
921 AM EDT Thu Apr 22 2021

MIZ020-021-025-026-031-099-221430-
/O.CAN.KAPX.FZ.W.0004.000000T0000Z-210422T1500Z/
Leelanau-Antrim-Benzie-Grand Traverse-Manistee-Charlevoix-
Including the cities of Northport, Mancelona, Frankfort, 
Traverse City, Manistee, and Charlevoix
921 AM EDT Thu Apr 22 2021

...FREEZE WARNING IS CANCELLED...

Temperatures have warmed to above freezing at most locations this
morning. Therefore the freeze warning is cancelled.

$$

Nearby

Freeze Warnings in Michigan, 2021Every freeze warning 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.