Alert archive / Michigan / Frost Advisories in 2012

Frost Advisory 9, NWS Gaylord, MI

September 23, 201218 counties in Michigan

NWS Gaylord, MI issued this frost advisory at Sep 23, 2012, 4:16 PM EDT for 18 counties in Michigan. It took effect at Sep 24, 2012, 2:00 AM EDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Sep 23, 2012, 4:16 PM EDT (20:16 UTC)
In effect from
Sep 24, 2012, 2:00 AM EDT
Expired
Sep 24, 2012, 8:18 AM EDT
In force
6 hr
Issued by
NWS Gaylord, MI

Counties Alcona County, MI, Alpena County, MI, Arenac County, MI, Cheboygan County, MI, Crawford County, MI, Gladwin County, MI, Grand Traverse County, MI, Iosco County, MI, Kalkaska County, MI, Manistee County, MI, Missaukee County, MI, Montmorency County, MI, Ogemaw County, MI, Oscoda County, MI, Otsego County, MI, Presque Isle County, MI, Roscommon County, MI, Wexford County, MI

The radar

The NCL Michigan radar (KAPX), 36 km from the middle of the area, began a volume at 20:18 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

Alpena, MI (KAPX), launched 12:00Z, 8.3 hours before the alert went out and 171 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, Alpena, MI at 12:00Z on 2012-09-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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, Alpena, MI at 12:00Z on 2012-09-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 100 square meters per square second.19395878Sfc1 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
529 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
100 m²/s²
0-3 km storm-relative helicity
114 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

741 
WWUS73 KAPX 232016
NPWAPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE GAYLORD MI
416 PM EDT SUN SEP 23 2012

...AREAS OF FROST TONIGHT OVER INTERIOR NORTHERN LOWER MICHIGAN...

.HIGH PRESSURE AND DRIER AIR WILL EDGE INTO THE STATE TONIGHT.
THIS WILL LEAD TO THINNING/CLEARING SKIES LATER TONIGHT ALONG WITH
DIMINISHING WINDS...ALLOWING TEMPERATURES TO DIP INTO THE LOWER
AND MIDDLE 30S BY MONDAY MORNING. SOME OF THE COLDEST LOCATIONS
MAY DIP BELOW FREEZING FOR A TIME. AREAS OF FROST WILL DEVELOP...
ESPECIALLY EAST OF US-131. PRECAUTIONS SHOULD BE TAKEN TO PROTECT
SENSITIVE OUTDOOR PLANTS FROM THE COLD TEMPERATURES.

MIZ017-018-022>024-026>036-041-042-240400-
/O.NEW.KAPX.FR.Y.0009.120924T0600Z-120924T1300Z/
CHEBOYGAN-PRESQUE ISLE-OTSEGO-MONTMORENCY-ALPENA-GRAND TRAVERSE-
KALKASKA-CRAWFORD-OSCODA-ALCONA-MANISTEE-WEXFORD-MISSAUKEE-
ROSCOMMON-OGEMAW-IOSCO-GLADWIN-ARENAC-
INCLUDING THE CITIES OF...CHEBOYGAN...ROGERS CITY...GAYLORD...
ATLANTA...ALPENA...TRAVERSE CITY...KALKASKA...GRAYLING...MIO...
HARRISVILLE...MANISTEE...CADILLAC...LAKE CITY...HOUGHTON LAKE...
WEST BRANCH...TAWAS CITY...GLADWIN...STANDISH
416 PM EDT SUN SEP 23 2012

...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM EDT MONDAY...

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A FROST
ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 9 AM EDT MONDAY. 

HAZARDOUS WEATHER...

 * TEMPERATURES FALLING TO BETWEEN 32 DEGREES AND 36 DEGREES WITH
   A FEW LOCATIONS DIPPING BELOW FREEZING.
 * AREAS OF FROST OVER INTERIOR AREAS OF NORTHERN LOWER MICHIGAN.

IMPACTS...

 * COLD TEMPERATURES MAY DAMAGE SENSITIVE PLANTS. PRECAUTIONS
   SHOULD BE TAKEN TO PROTECT THEM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS EXPECTED. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$

ADAM
2 follow-up statements
762 
WWUS73 KAPX 240658
NPWAPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE GAYLORD MI
258 AM EDT MON SEP 24 2012

...AREAS OF FROST EARLY THIS MORNING OVER INTERIOR NORTHERN LOWER
MICHIGAN...

...STRONG WINDS QUICKLY DEVELOPING TODAY...ESPECIALLY NEAR LAKE MICHIGAN...

.TEMPERATURES IN THE LOW TO MID 30S WILL BE COMMON OVER INTERIOR
PORTIONS OF NORTHERN LOWER MICHIGAN THROUGH SUNRISE. SOME OF THE
COLDEST LOCATIONS MAY DIP BELOW FREEZING FOR A TIME. AREAS OF
FROST WILL CONTINUE...ESPECIALLY EAST OF US-131.

.BY LATER THIS MORNING...THE INTERACTION BETWEEN AN APPROACHING
COLD FRONT AND DEPARTING HIGH PRESSURE WILL LEAD TO RAPID
DEVELOPMENT OF VERY GUSTY SOUTHWEST WINDS. THE STRONGEST WINDS ARE
EXPECTED ALONG THE IMMEDIATE LAKE MICHIGAN COAST OF NORTHWEST
LOWER MICHIGAN AND THROUGH THE STRAITS...AS WELL AS BEAVER ISLAND.
WINDS GUSTS TO 45 MPH ARE LIKELY IN THESE AREAS BEFORE WINDS
BEGIN TO SUBSIDE EARLY THIS EVENING.

MIZ015-016-019-020-241500-
/O.NEW.KAPX.WI.Y.0005.120924T1500Z-120925T0000Z/
MACKINAC-EMMET-CHARLEVOIX-LEELANAU-
INCLUDING THE CITIES OF...ST. IGNACE...PETOSKEY...CHARLEVOIX...
NORTHPORT
258 AM EDT MON SEP 24 2012

...WIND ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT
THIS EVENING...

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM EDT
THIS EVENING. 

HAZARDOUS WEATHER...

 * SUSTAINED WINDS APPROACHING 30 MPH...WITH FREQUENT GUSTS TO 45
   MPH. THE HIGHEST WINDS WILL BE ALONG THE IMMEDIATE LAKE
   MICHIGAN COASTLINE...AS WELL AS BEAVER ISLAND.

IMPACTS...

 * MINOR TREE DAMAGE IS POSSIBLE.

 * LIGHT WEIGHT AND UNSECURED OBJECTS COULD EASILY BE BLOWING
   ABOUT.

 * SOME POWER OUTAGES ARE POSSIBLE.

 * DIFFICULT DRIVING CONDITIONS...ESPECIALLY IN UNSHELTERED AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR
HIGH PROFILE VEHICLES. USE EXTRA CAUTION. VISIT
WWW.WEATHER.GOV/APX/?N=WEATHER_PREPAREDNESS (ALL LOWER CASE) FOR
ADDITIONAL WEATHER PREPAREDNESS INFORMATION TO KEEP YOU AND YOUR
FAMILY SAFE.

&&

$$

MIZ017-018-022>024-026>036-041-042-241300-
/O.CON.KAPX.FR.Y.0009.000000T0000Z-120924T1300Z/
CHEBOYGAN-PRESQUE ISLE-OTSEGO-MONTMORENCY-ALPENA-GRAND TRAVERSE-
KALKASKA-CRAWFORD-OSCODA-ALCONA-MANISTEE-WEXFORD-MISSAUKEE-
ROSCOMMON-OGEMAW-IOSCO-GLADWIN-ARENAC-
INCLUDING THE CITIES OF...CHEBOYGAN...ROGERS CITY...GAYLORD...
ATLANTA...ALPENA...TRAVERSE CITY...KALKASKA...GRAYLING...MIO...
HARRISVILLE...MANISTEE...CADILLAC...LAKE CITY...HOUGHTON LAKE...
WEST BRANCH...TAWAS CITY...GLADWIN...STANDISH
258 AM EDT MON SEP 24 2012

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING...

A FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM EDT THIS MORNING. 

HAZARDOUS WEATHER...

 * TEMPERATURES BETWEEN 32 DEGREES AND 36 DEGREES WITH A FEW
   LOCATIONS DIPPING BELOW FREEZING. AREAS OF FROST.

IMPACTS...

 * COLD TEMPERATURES MAY DAMAGE SENSITIVE PLANTS. PRECAUTIONS 
   SHOULD BE TAKEN TO PROTECT THEM. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS EXPECTED. SENSITIVE OUTDOOR
PLANTS MAY BE KILLED IF LEFT UNCOVERED.

&&

$$

MSB
054 
WWUS73 KAPX 241218
NPWAPX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE GAYLORD MI
818 AM EDT MON SEP 24 2012

...STRONG WINDS QUICKLY DEVELOPING TODAY...ESPECIALLY NEAR LAKE
MICHIGAN...

THE INTERACTION BETWEEN AN APPROACHING COLD FRONT AND DEPARTING
HIGH PRESSURE WILL LEAD TO RAPID DEVELOPMENT OF VERY GUSTY
SOUTHWEST WINDS THROUGH LATE MORNING AND AFTERNOON. THE STRONGEST
WINDS ARE EXPECTED ALONG THE IMMEDIATE LAKE MICHIGAN COAST OF
NORTHWEST LOWER MICHIGAN AND THROUGH THE STRAITS...AS WELL AS
BEAVER ISLAND. WINDS GUSTS TO 45 MPH ARE LIKELY IN THESE AREAS
BEFORE WINDS BEGIN TO SUBSIDE EARLY THIS EVENING.

MIZ017-018-022>024-026>036-041-042-241330-
/O.CAN.KAPX.FR.Y.0009.000000T0000Z-120924T1300Z/
CHEBOYGAN-PRESQUE ISLE-OTSEGO-MONTMORENCY-ALPENA-GRAND TRAVERSE-
KALKASKA-CRAWFORD-OSCODA-ALCONA-MANISTEE-WEXFORD-MISSAUKEE-
ROSCOMMON-OGEMAW-IOSCO-GLADWIN-ARENAC-
INCLUDING THE CITIES OF...CHEBOYGAN...ROGERS CITY...GAYLORD...
ATLANTA...ALPENA...TRAVERSE CITY...KALKASKA...GRAYLING...MIO...
HARRISVILLE...MANISTEE...CADILLAC...LAKE CITY...HOUGHTON LAKE...
WEST BRANCH...TAWAS CITY...GLADWIN...STANDISH
818 AM EDT MON SEP 24 2012

...FROST ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN GAYLORD HAS CANCELLED THE FROST
ADVISORY. 

TEMPERATURES HAVE WARMED ABOVE FREEZING IN MOST AREAS...AND WILL
CONTINUE TO RISE WELL INTO THE 50S THROUGH THE MORNING.

$$

MIZ015-016-019-020-250000-
/O.CON.KAPX.WI.Y.0005.120924T1500Z-120925T0000Z/
MACKINAC-EMMET-CHARLEVOIX-LEELANAU-
INCLUDING THE CITIES OF...ST. IGNACE...PETOSKEY...CHARLEVOIX...
NORTHPORT
818 AM EDT MON SEP 24 2012

...WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING. 

HAZARDOUS WEATHER...

 * SUSTAINED WINDS APPROACHING 30 MPH...WITH FREQUENT GUSTS TO 
   45 MPH. THE HIGHEST WINDS WILL BE ALONG THE IMMEDIATE LAKE 
   MICHIGAN COASTLINE...AS WELL AS ON BEAVER ISLAND. 

IMPACTS...

 * MINOR TREE DAMAGE IS POSSIBLE.

 * LIGHT WEIGHT AND UNSECURED OBJECTS COULD EASILY BE BLOWING 
   ABOUT. 

 * SOME POWER OUTAGES ARE POSSIBLE.

 * DIFFICULT DRIVING CONDITIONS...ESPECIALLY IN UNSHELTERED AREAS
   FOR HIGH PROFILE VEHICLES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR
HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

&&

$$

LAWRENCE

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 23, 4:06 PM EDTGale WarningAPX34 hr

Nearby

Frost Advisories in Michigan, 2012Every frost advisory in 2012

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.