Freeze Warning 11, NWS Grand Rapids, MI

340 
WWUS73 KGRR 131950
NPWGRR

URGENT - WEATHER MESSAGE
National Weather Service Grand Rapids MI
350 PM EDT Thu May 13 2021

MIZ037>040-043>045-140400-
/O.CON.KGRR.FZ.W.0011.210514T0400Z-210514T1200Z/
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-
Including the cities of Ludington, Baldwin, Reed City, Clare, 
Hart, Fremont, and Big Rapids
350 PM EDT Thu May 13 2021

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

* WHAT...Sub-freezing temperatures as low as 28 expected.

* WHERE...Portions of central and west central Michigan.

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

* IMPACTS...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.

&&

$$

MIZ046-050>052-056>059-064>067-071>074-140400-
/O.CON.KGRR.FR.Y.0006.210514T0400Z-210514T1200Z/
Isabella-Muskegon-Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-
Allegan-Barry-Eaton-Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
Including the cities of Mount Pleasant, Muskegon, Greenville, 
Alma, Grand Haven, Jenison, Grand Rapids, Ionia, St. Johns, 
Holland, Hastings, Charlotte, Lansing, South Haven, Kalamazoo, 
Battle Creek, and Jackson
350 PM EDT Thu May 13 2021

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

* WHAT...Temperatures as low as 32 will result in frost 
  formation.

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

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

* IMPACTS...Temperatures near freezing could harm plants and 
  other sensitive outdoor vegetation if left uncovered.

* ADDITIONAL DETAILS...Some locations in Van Buren and Allegan 
  Counties may briefly drop below freezing around sunrise.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/grr

643 
WWUS73 KGRR 140152
NPWGRR

URGENT - WEATHER MESSAGE
National Weather Service Grand Rapids MI
952 PM EDT Thu May 13 2021

MIZ037>040-043>045-141000-
/O.CON.KGRR.FZ.W.0011.210514T0400Z-210514T1200Z/
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-
Including the cities of Ludington, Baldwin, Reed City, Clare, 
Hart, Fremont, and Big Rapids
952 PM EDT Thu May 13 2021

...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM EDT FRIDAY...

* WHAT...Sub-freezing temperatures as low as 28 expected.

* WHERE...Portions of central and west central Michigan.

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

* IMPACTS...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.

&&

$$

MIZ046-050>052-056>059-064>067-071>074-141000-
/O.CON.KGRR.FR.Y.0006.210514T0400Z-210514T1200Z/
Isabella-Muskegon-Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-
Allegan-Barry-Eaton-Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
Including the cities of Mount Pleasant, Muskegon, Greenville, 
Alma, Grand Haven, Jenison, Grand Rapids, Ionia, St. Johns, 
Holland, Hastings, Charlotte, Lansing, South Haven, Kalamazoo, 
Battle Creek, and Jackson
952 PM EDT Thu May 13 2021

...FROST ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT FRIDAY...

* WHAT...Temperatures as low as 32 will result in frost 
  formation.

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

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

* IMPACTS...Temperatures near freezing could harm plants and 
  other sensitive outdoor vegetation if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/grr

962 
WWUS73 KGRR 140815
NPWGRR

URGENT - WEATHER MESSAGE
National Weather Service Grand Rapids MI
415 AM EDT Fri May 14 2021

MIZ037>040-043>045-141200-
/O.CON.KGRR.FZ.W.0011.000000T0000Z-210514T1200Z/
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-
Including the cities of Ludington, Baldwin, Reed City, Clare, 
Hart, Fremont, and Big Rapids
415 AM EDT Fri May 14 2021

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

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

* WHERE...Portions of central and west central Michigan.

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

* IMPACTS...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.

&&

$$

MIZ046-050>052-056>059-064>067-071>074-141200-
/O.CON.KGRR.FR.Y.0006.000000T0000Z-210514T1200Z/
Isabella-Muskegon-Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-
Allegan-Barry-Eaton-Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
Including the cities of Mount Pleasant, Muskegon, Greenville, 
Alma, Grand Haven, Jenison, Grand Rapids, Ionia, St. Johns, 
Holland, Hastings, Charlotte, Lansing, South Haven, Kalamazoo, 
Battle Creek, and Jackson
415 AM EDT Fri May 14 2021

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

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

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

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

* IMPACTS...Temperatures near freezing could harm plants and 
  other sensitive outdoor vegetation if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/grr

645 
WWUS73 KGRR 141059
NPWGRR

URGENT - WEATHER MESSAGE
National Weather Service Grand Rapids MI
659 AM EDT Fri May 14 2021

MIZ037>040-043>045-141200-
/O.CAN.KGRR.FZ.W.0011.000000T0000Z-210514T1200Z/
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-
Including the cities of Ludington, Baldwin, Reed City, Clare, 
Hart, Fremont, and Big Rapids
659 AM EDT Fri May 14 2021

...FREEZE WARNING IS CANCELLED...

Temperatures are rising quickly so the threat of freezing 
temperatures has ended.

$$

MIZ046-050>052-056>059-064>067-071>074-141200-
/O.CAN.KGRR.FR.Y.0006.000000T0000Z-210514T1200Z/
Isabella-Muskegon-Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-
Allegan-Barry-Eaton-Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
Including the cities of Mount Pleasant, Muskegon, Greenville, 
Alma, Grand Haven, Jenison, Grand Rapids, Ionia, St. Johns, 
Holland, Hastings, Charlotte, Lansing, South Haven, Kalamazoo, 
Battle Creek, and Jackson
659 AM EDT Fri May 14 2021

...FROST ADVISORY IS CANCELLED...

Temperatures are rising quickly so the threat of frost 
has ended.

$$

For more information from the National Weather Service visit
https://weather.gov/grr

Area Forecast Discussion
National Weather Service Grand Rapids MI
741 AM EDT Thu May 13 2021

LATEST UPDATE...
Aviation

.SYNOPSIS...
Issued at 330 AM EDT Thu May 13 2021

-High Pressure Building with Warming Temperatures

-Short wave with weak precipitation chances Saturday

-Precipitation chances continues to trend southward late weekend

&&

.DISCUSSION...(Today through next Wednesday)
Issued at 33o AM EDT Thu May 13 2021

--High Pressure Building with Warming Temperatures--

Dry air with building high pressure will dominate the weather
pattern today and into the weekend. The inversion at the surface
will allow for another cold morning with frost/freeze headlines
across Southwest Michigan.
As the inversion breaks down this morning, westerly winds will
pick up, though the winds will be fairly light around 5 to 10
mph. Temperatures will increase and given the high pressure, along
with the dry air, it will be a fairly warm day. Highs are
expected to be in the upper 60s through most of the region
potentially hitting the low 70s along the US-10 corridor. Fair
weather and warming temperatures will continue through the end of
the work week.

--Short wave with weak precipitation chances Saturday--

A short wave trough will filter its way into the region Saturday.
this will bring some increased cloudiness. However given the dry
pattern it will be difficult to form precipitation. There is a
slight chance Saturday afternoon. The best chance will be
Saturday night into Sunday with better mid to upper level
instability.

--Precipitation chances continues to trend southward--

The warm and dry conditions will continue through most of the
weekend. The model trends continue to keep the surface system,
and its warm front, mainly through the southern tier of Michigan.
So there is a decent chance of rain along the I-94 corridor late
Sunday into Monday. Precip amounts will be fairly low. The strong
jet aloft continues to trend southward, which will keep the
system and its corresponding warm front south of Michigan.

 Early next week a negatively tilted ridge will building over the
upper midwest and into central Canada. This ridge will stifle
convection and continue the warming temperatures. There is an
opportunity to relieve the dry conditions mid to late next week
with a northward propagating shortwave, however there is some
disparity in the models so confidence in position and timing
remains low.

&&

.AVIATION...(For the 12Z TAFS through 12Z Friday morning)
Issued at 740 AM EDT Thu May 13 2021

Clear skies and light winds will prevail into Friday afternoon.

&&

.MARINE...
Issued at 330 AM EDT Thu May 13 2021

High pressure centered over the Great Lakes Region will keep
winds and waves below Small Craft Advisory criteria the next
several days. However expect stronger onshore flow of 10-15 kts
during the afternoon and early evening hours due to lake breeze
circulations (differential heating of land vs lake).

&&

.GRR WATCHES/WARNINGS/ADVISORIES...
MI...Frost Advisory until 8 AM EDT this morning for MIZ050>052-
     056>059-064>067-071>074.

     Freeze Warning until 8 AM EDT this morning for MIZ037>040-
     043>046.

LM...None.
&&

SYNOPSIS...Ceru
DISCUSSION...Ceru
AVIATION...WDM
MARINE...Ceru

Hazardous Weather Outlook
National Weather Service Grand Rapids MI
449 AM EDT Thu May 13 2021

MIZ037>040-043>046-050>052-056>059-064>067-071>074-140900-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
449 AM EDT Thu May 13 2021

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...Today and Tonight

Frost and freezing temperatures are expected this morning.
Freezing conditions are more likely near and north of Highway
M-20.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Frost is possible Thursday night into early Friday morning.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.

LMZ844>849-140900-
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
Whitehall to Pentwater MI-Pentwater to Manistee MI-
449 AM EDT Thu May 13 2021

This hazardous weather outlook is for portions of southwest Lower
Michigan.

.DAY ONE...Today and Tonight

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed.