Alert archive / Michigan / Frost Advisories in 2021

Frost Advisory 2, NWS Gaylord, MI

May 6, 20219 counties in Michigan

NWS Gaylord, MI issued this frost advisory at May 6, 2021, 3:21 PM EDT for 9 counties in Michigan. It took effect at May 7, 2021, 12:00 AM EDT. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
May 6, 2021, 3:21 PM EDT (19:21 UTC)
In effect from
May 7, 2021, 12:00 AM EDT
Expired
May 7, 2021, 7:54 AM EDT
In force
8 hr
Issued by
NWS Gaylord, MI

Counties Antrim County, MI, Arenac County, MI, Benzie County, MI, Charlevoix County, MI, Emmet County, MI, Gladwin County, MI, Grand Traverse County, MI, Leelanau County, MI, Manistee County, MI

The radar

The NCL Michigan radar (KAPX), 48 km from the middle of the area, began a volume at 19:20 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, 7.4 hours before the alert went out and 225 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 2021-05-06Temperature 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 2021-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -81 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
1490 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
-81 m²/s²
0-3 km storm-relative helicity
-5 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

028 
WWUS73 KAPX 061921
NPWAPX

URGENT - WEATHER MESSAGE
National Weather Service Gaylord MI
321 PM EDT Thu May 6 2021

MIZ017-018-022>024-027>030-032>036-070545-
/O.NEW.KAPX.FZ.W.0007.210507T0400Z-210507T1200Z/
Cheboygan-Presque Isle-Otsego-Montmorency-Alpena-Kalkaska-
Crawford-Oscoda-Alcona-Wexford-Missaukee-Roscommon-Ogemaw-Iosco-
Including the cities of Cheboygan, Rogers City, Gaylord, Atlanta,
Alpena, Kalkaska, Grayling, Mio, Harrisville, Cadillac, 
Lake City, Houghton Lake, West Branch, and Tawas City
321 PM EDT Thu May 6 2021

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT
FRIDAY...

* WHAT...Sub-freezing temperatures as low as 30 expected.

* WHERE...Portions of Northern Lower Michigan.

* WHEN...From midnight tonight to 8 AM EDT 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.

&&

$$

MIZ016-020-021-025-026-031-041-042-099-070545-
/O.NEW.KAPX.FR.Y.0002.210507T0400Z-210507T1200Z/
Emmet-Leelanau-Antrim-Benzie-Grand Traverse-Manistee-Gladwin-
Arenac-Charlevoix-
Including the cities of Petoskey, Northport, Mancelona, 
Frankfort, Traverse City, Manistee, Gladwin, Standish, 
and Charlevoix
321 PM EDT Thu May 6 2021

...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT
FRIDAY...

* WHAT...Temperatures as low as 33 will result in frost 
  formation.

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

* WHEN...From midnight tonight to 8 AM EDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$
3 follow-up statements
601 
WWUS73 KAPX 070115
NPWAPX

URGENT - WEATHER MESSAGE
National Weather Service Gaylord MI
915 PM EDT Thu May 6 2021

MIZ017-018-022>024-027>030-032>036-070915-
/O.CON.KAPX.FZ.W.0007.210507T0400Z-210507T1200Z/
Cheboygan-Presque Isle-Otsego-Montmorency-Alpena-Kalkaska-
Crawford-Oscoda-Alcona-Wexford-Missaukee-Roscommon-Ogemaw-Iosco-
Including the cities of Cheboygan, Rogers City, Gaylord, Atlanta,
Alpena, Kalkaska, Grayling, Mio, Harrisville, Cadillac, 
Lake City, Houghton Lake, West Branch, and Tawas City
915 PM EDT Thu May 6 2021

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM
EDT FRIDAY...

* WHAT...Sub-freezing temperatures as low as 30 expected.

* WHERE...Portions of Northern Lower Michigan.

* WHEN...From midnight tonight to 8 AM EDT 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.

&&

$$

MIZ016-020-021-025-026-031-041-042-099-070915-
/O.CON.KAPX.FR.Y.0002.210507T0400Z-210507T1200Z/
Emmet-Leelanau-Antrim-Benzie-Grand Traverse-Manistee-Gladwin-
Arenac-Charlevoix-
Including the cities of Petoskey, Northport, Mancelona, 
Frankfort, Traverse City, Manistee, Gladwin, Standish, 
and Charlevoix
915 PM EDT Thu May 6 2021

...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM
EDT FRIDAY...

* WHAT...Temperatures as low as 33 will result in frost 
  formation.

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

* WHEN...From midnight tonight to 8 AM EDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$
774 
WWUS73 KAPX 070759
NPWAPX

URGENT - WEATHER MESSAGE
National Weather Service Gaylord MI
359 AM EDT Fri May 7 2021

MIZ017-018-022>024-027>030-032>036-071200-
/O.CON.KAPX.FZ.W.0007.000000T0000Z-210507T1200Z/
Cheboygan-Presque Isle-Otsego-Montmorency-Alpena-Kalkaska-
Crawford-Oscoda-Alcona-Wexford-Missaukee-Roscommon-Ogemaw-Iosco-
Including the cities of Cheboygan, Rogers City, Gaylord, Atlanta,
Alpena, Kalkaska, Grayling, Mio, Harrisville, Cadillac, 
Lake City, Houghton Lake, West Branch, and Tawas City
359 AM EDT Fri May 7 2021

...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM EDT THIS MORNING...

* WHAT...Sub-freezing temperatures near or slightly below 32
  degrees.

* WHERE...Northern Lower Michigan.

* WHEN...Until 8 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.

&&

$$

MIZ016-020-021-025-026-031-041-042-099-071200-
/O.CON.KAPX.FR.Y.0002.000000T0000Z-210507T1200Z/
Emmet-Leelanau-Antrim-Benzie-Grand Traverse-Manistee-Gladwin-
Arenac-Charlevoix-
Including the cities of Petoskey, Northport, Mancelona, 
Frankfort, Traverse City, Manistee, Gladwin, Standish, 
and Charlevoix
359 AM EDT Fri May 7 2021

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

* WHAT...Temperatures as low as 33 will result in frost 
  formation.

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

* WHEN...Until 8 AM EDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$
636 
WWUS73 KAPX 071154
NPWAPX

URGENT - WEATHER MESSAGE
National Weather Service Gaylord MI
754 AM EDT Fri May 7 2021

MIZ017-018-022>024-027>030-032>036-071300-
/O.CAN.KAPX.FZ.W.0007.000000T0000Z-210507T1200Z/
Cheboygan-Presque Isle-Otsego-Montmorency-Alpena-Kalkaska-
Crawford-Oscoda-Alcona-Wexford-Missaukee-Roscommon-Ogemaw-Iosco-
Including the cities of Cheboygan, Rogers City, Gaylord, Atlanta,
Alpena, Kalkaska, Grayling, Mio, Harrisville, Cadillac, 
Lake City, Houghton Lake, West Branch, and Tawas City
754 AM EDT Fri May 7 2021

...FREEZE WARNING IS CANCELLED...

$$

MIZ016-020-021-025-026-031-041-042-099-071300-
/O.CAN.KAPX.FR.Y.0002.000000T0000Z-210507T1200Z/
Emmet-Leelanau-Antrim-Benzie-Grand Traverse-Manistee-Gladwin-
Arenac-Charlevoix-
Including the cities of Petoskey, Northport, Mancelona, 
Frankfort, Traverse City, Manistee, Gladwin, Standish, 
and Charlevoix
754 AM EDT Fri May 7 2021

...FROST ADVISORY IS CANCELLED...

$$

The office that day

Everything else NWS Gaylord, MI issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 6, 3:21 PM EDTFreeze WarningAPXAlcona, Alpena, Cheboygan, Crawford, Iosco, Kalkaska and 8 more17 hr

Nearby

Frost Advisories in Michigan, 2021Every frost advisory 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.