An Arctic cold front moving across Upper Michigan brought blizzard to near-blizzard conditions over the Keweenaw Peninsula on the afternoon and evening of the 13th.
Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS MQT wrote it up.
An Arctic cold front moving across Upper Michigan brought blizzard to near-blizzard conditions over the Keweenaw Peninsula on the afternoon and evening of the 13th.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Marquette, MI wrote its last area forecast discussion before the first event at Dec 13, 1:15 PM EST, 2 hours 45 minutes earlier.
AREA FORECAST DISCUSSION...UPDATE
NATIONAL WEATHER SERVICE MARQUETTE MI
115 PM EST THU DEC 13 2007
UPDATED DISCUSSION FOR BLIZZARD WARNING AND AVIATION FOR 18Z TAFS
.UPDATE...
MADE AN UPDATE TO THE FORECAST TO ISSUE A BLIZZARD WARNING FOR
KEWEENAW AND NORTHERN HOUGHTON COUNTIES. 1000MB LOW OVER SWRN
ONTARIO CONTINUING ITS EASTWARD PROGRESSION JUST TO THE NORTH OF LK
SUPERIOR. BELIEVE THERE MAYBE SOME MINOR INTENSIFICATION OF THE LOW
AS IT INTERACTS WITH THE RELATIVELY WARM WATERS OF NRN LK SUPERIOR.
LIGHT SNOW PRESENTLY SEEN OVER THE ARROWHEAD OF MN...ALONG INITIAL
COLD FRONT WILL BEGIN TO WORK INTO THE WRN UP DURING THE AFTN AND
BEGIN TO INTENSIFY DUE TO THE W WINDS COMING OFF THE LAKE. THIS
INCREASE IN SNOW INTENSITY AND WIND WILL PRODUCE DECREASING
VISIBILITIES ACROSS THE KEWEENAW PENINSULA DURING THE LATE AFTN.
CONDITIONS WILL CONTINUE TO DETERIORATE DURING THE EVENING
HOURS...AS SECOND SFC TROUGH/FRONT SLIDES SE ACROSS WRN UP. PRESSURE
RISE COUPLET SEEN OVER NW MN THIS MORNING WAS PRODUCING GUSTS TO
43KTS AT KHCO IN THE AREA OF MAX PRESSURE RISE. THIS SAME COUPLET
WILL MOVE ACROSS THE KEWEENAW BETWEEN 01-04Z AND EXPECT SIMILAR
GUSTS THERE...WHICH WILL PRODUCE VISIBILITIES TO 1/4 MILE OR
LESS...WITH FREQUENT WHITEOUT CONDITIONS. THEREFORE...HAVE ISSUED A
BLIZZARD WARNING FROM 21Z THURSDAY TO 06Z FRIDAY. CONDITIONS WILL
IMPROVE AFTER 06Z AS WINDS AND SNOW BEGIN TO DECREASE.
&&
.DISCUSSION...
MAIN FCST CONCERN IS THE LAKE ENHANCED/LAKE EFFECT EVENT THIS AFTN
THRU FRI MORNING.
WATER VAPOR IMAGERY AND RUC ANALYSIS SHOW SPLIT FLOW PATTERN
CONTINUING OVER THE CONUS. A POSITIVE TILT TROF IN THE SRN STREAM
EXTENDS FROM THE MID MISSISSIPPI VALLEY TO TX. ANOTHER SRN STREAM
SHORTWAVE WAS JUST OF THE SRN CA COAST. FARTHER UPSTREAM...SHORTWAVE
JUST OFF THE BRITISH COLUMBIA COAST WILL SEND ENERGY INTO THE SRN
STREAM WHICH WILL COMBINE WITH CA SHORTWAVE TO SPIN UP A SIGNIFICANT
LWR MISSISSIPPI VALLEY TO NEW ENGLAND STORM THIS WEEKEND. IN THE NRN
STREAM...ATTENTION IS ON THE POTENT SHORTWAVE OVER SRN MANITOBA/ERN
DAKOTAS. SYSTEM HASNT LOST ANY STRENGTH SINCE MOVING ONSHORE IN
BRITISH COLUMBIA 24HRS AGO AS IMPRESSIVE HEIGHT FALLS CONTINUE ALONG
ITS TRACK. 00Z SOUNDING AT KGGW IN NE MT INDICATED A 12HR HEIGHT
FALL OF 170M AT 500MB. ALTHOUGH A MOISTURE CONNECTION IS LACKING...
THERE IS A RIBBON OF DEEP MOISTURE ASSOCIATED WITH THE SHORTWAVE AS
SHOWN BY KBIS SOUNDING. PROFILE WAS MOSTLY SATURATED THRU THE COLUMN
WITH PRECIPITABLE WATER 205PCT OF NORMAL. STRONG DEEP LAYER FORCING
WITH SHORTWAVE IS MOSTLY CENTERED JUST N OF THE U.S./CANADA BORDER
PER RUC ANALYSIS WHERE RADARS INDICATE A SHIELD OF SNOW SPREADING
INTO NRN ONTARIO. TAIL OF FORCING DOES EXTEND S INTO MN AND IS
RESULTING IN A NARROW BAND OF SNOW INTO NRN MN ALONG RIBBON OF DEEP
MOISTURE. DESPITE ONGOING WAA/ISENTROPIC ASCENT REGIME OVER THE
UPPER LAKES...NO PCPN IS OCCURRING DUE TO THE VERY DRY AIRMASS OVER
THE AREA AS SHOWN BY 00Z KINL/KGRB/KMPX SOUNDINGS. AT THE
SFC...ASSOCIATED LOW PRESSURE WAS LOCATED IN EXTREME SE MANITOBA
00Z MODEL RUNS SHOW NO SIGNIFICANT CHANGES WITH SYSTEM AS IT CROSSES
THE UPPER GREAT LAKES TODAY. 6HR 500MB HEIGHT FALLS ARE STILL
PROGGED TO BE NEARLY 100M. ALTHOUGH THE STRONGEST DEEP LAYER FORCING
WILL PASS JUST N OF UPPER MI...SWD EXTENSION OF FORCING COINCIDING
WITH RIBBON OF DEEP LAYER MOISTURE PER 00Z KBIS SOUNDING SHOULD
YIELD A BAND OF -SN PASSING ACROSS THE FCST AREA. ALTHOUGH THERE IS
A LOT OF DRY AIR OVER THE AREA NOW...IT APPEARS MODELS MAY BE A
LITTLE DEFICIENT WITH THE POPS/PCPN AMOUNTS ACROSS THE FCST AREA AS
RIBBON OF DEEP MOISTURE/FORCING PASSES OVER THE AREA. WILL THUS
SPREAD A SHORT PERIOD OF LIKELY POPS ACROSS THE N WHERE SATURATION
POTENTIAL IS A LITTLE BETTER. WILL KEEP CHC POPS ACROSS THE S. SNOW
ACCUMULATION WILL BE UNDER 1 INCH WITH THIS BRIEF PERIOD OF -SN. AS
FOR LAKE EFFECT...WINDS WILL HAVE JUST ENOUGH SRLY COMPONENT OVER
LAKE MICHIGAN TO ALLOW FOR THE POTENTIAL OF BRIEF LAKE ENHANCEMENT
OR AT LEAST LOW-LEVEL MOISTENING AS BAND OF FORCING PASSES EARLY
THIS AFTN. STILL ACCUMULATIONS SHOULDNT BE MORE THAN 1 INCH. TO
THE W...WINDS WILL BECOME MORE WRLY AT THE END OF THE PERIOD OF DEEP
LAYER FORCING. SO...LAKE ENHANCEMENT WONT BE TAKEN FULL ADVANTAGE
OF. STILL...THERE IS AN OPPORTUNITY FOR MAYBE A FEW INCHES OF SNOW
DURING THE DAY OVER THE KEWEENAW. THE BIGGER IMPACT WILL BE THE
STRONG WINDS THAT DEVELOP IN THE AFTN/EVENING. ISALLOBARIC WIND
COMPONENT WILL BE ALIGNED WITH THE WRLY BOUNDARY LAYER WIND (A
FAVORABLE DIRECTION FOR STRONG WINDS ON THE KEWEENAW). WITH 35-40KT
AVBL WITHIN 3KFT OF THE GROUND AND A HEALTHY ISALLOBARIC PUSH...
WINDS WILL LIKELY BE STRONGER THAN GUIDANCE INDICATES LATE
AFTN/EARLY EVENING...AND BLSN WILL BE A BIG ISSUE IN OPEN AREAS.
POTENT APPEARANCE OF SHORTWAVE ON WATER VAPOR IMAGERY IS ALSO
SUPPORTIVE OF GOING ABOVE MODEL GUIDANCE ON WINDS. THIS INCLUDES
OVER LAKE SUPERIOR WHERE GALES ARE A GOOD BET. A COUPLE OF OBS IN ND
HAVE ALREADY INDICATED GUSTS ABOVE 35KT EARLY THIS MORNING... AN
INDICATION OF WHAT SHOULD OCCUR OVER LAKE SUPERIOR AND THE KEWEENAW.
WILL RIDE WITH THE ADVY FOR THE KEWEENAW...BUT WILL HIT THE BLSN
ASPECT HARDER IN THE ADVY STATEMENT. WILL NEED TO WATCH FOR THE
POSSIBILITY OF UPGRADING TO A WARNING IF IT APPEARS SEVERAL HRS OF
SIGNIFICANT BLSN WILL OCCUR. AS FOR HEADLINES...HAD TO MAKE SOME
CHANGES TO INCLUDE BLSN IN SOME OF THE ADVY HEADLINES SINCE THAT IS
DEFINITELY NEEDED. WITH THAT CHANGE BEING MADE...HEADLINE TYPES
WERE ALSO CHANGED TO LAKE EFFECT SNOW.
ACROSS THE REST OF THE COUNTIES BORDERING LAKE SUPERIOR...SECOND
COLD FRONT WILL SWEEP ACROSS THE AREA THIS EVENING...SHIFTING WRLY
WINDS TO THE NW. THIS SHOULD RESULT IN A BRIEF PERIOD OF MDT
(PERHAPS HVY) SNOW AND BLSN. NW-SE ORIENTED WIND PARALLEL LES REGIME
SHOULD THEN QUICKLY SETUP...SUPPORTING HEAVIER SNOW ACCUMULATIONS
FOR ONTONAGON/GOGEBIC...THE HURON MOUNTAINS AND ERN
MARQUETTE/ALGER/LUCE. HOWEVER...THERE IS SOME QUESTION ABOUT HOW
MUCH LOWERING OF INVERSION OCCURS DURING THE NIGHT. THE GFS LOWERS
INVERSION DOWN TO 3-5KFT WHILE NAM IS NO LWR THAN 6-8KFT...HIGHEST
OVER THE E. THIS HAS IMPORTANT IMPLICATIONS FOR HEADLINES...
ESPECIALLY E OF KMQT...AS NAM SCENARIO WOULD SUPPORT ACCUMULATIONS
GETTING INTO WARNING CRITERIA. WILL LEAN SOMEWHAT TOWARD THE GFS AS
THE CANADIAN/UKMET LEND SOME SUPPORT FOR THE GFS IDEA OF UPPER TROF
SHIFTING E AND CYCLONIC FLOW RELAXING A LITTLE QUICKER THAN THE NAM
INDICATES. AFTER A SURGE OF STRONG/GUSTY WINDS WITH FROPA...WINDS
OVER THE W AND INLAND OVER THE E WILL RELAX DURING THE OVERNIGHT...
RESULTING IN DIMINISHING OF BLOWING/DRIFTING SN. WINDS WILL REMAIN
FAIRLY STRONG/GUSTY NEAR THE LAKESHORE E OF KMQT THRU THE NIGHT.
NNW FLOW LES IS EXPECTED FRI AS 850MB TEMPS ONLY MODERATE FROM -17C
IN THE MORNING TO -15C BY EVENING. WITH INVERSIONS RUNNING 3-5KFT
AND SFC HIGH PRES BUILDING INTO THE UPPER LAKES DURING THE
DAY...RESULTING IN INCREASINGLY ANTICYCLONIC FLOW (ESPECIALLY OVER
WRN LAKE SUPERIOR)...SNOW ACCUMULATIONS WILL GENERALLY BE ON THE
LIGHT SIDE (1 TO 4 WITH LOCALLY 5 INCHES). HIGHER ACCUMULATIONS WILL
BE OF KMQT WITH LONGER FETCH AVBL ACROSS LAKE SUPERIOR.
PRECONDITIONING FROM UNFROZEN LAKE NIPIGON SHOULD RESULT IN ONE OR
TWO DOMINANT BANDS. AWAY FROM LAKE EFFECT...DRY WEATHER IS EXPECTED.
WILL FAVOR THE COOLER GFS MOS FOR HIGHS GIVEN SOURCE REGION OF THE
CHILLY AIRMASS THAT WILL BE OVER THE AREA.
LES WILL DIMINISH/END FROM W TO E FRI NIGHT AS HIGH PRES SLIDES
ACROSS THE UPPER LAKES...RESULTING IN WINDS BECOMING SW BY SAT
MORNING. THERE MAY BE AN OPPORTUNITY FOR A MESOLOW TO DEVELOP OVER
ERN LAKE SUPERIOR UNDER THE PERIOD OF LIGHT WINDS. SHOULD ONE
DEVELOP...ANY ENHANCED LES THAT WOULD RESULT WILL NOT AFFECT UPPER
MI SINCE WINDS BECOME SW LATE IN THE NIGHT. WITH HIGH PRES PASSING
OVER THE AREA AND LAKE EFFECT CLOUDS DEPARTING...IT SHOULD BE A COLD
NIGHT...ESPECIALLY WITH MIN PRECIPITABLE WATER AROUND 0.1 INCHES
OVER THE AREA. WHILE THERE MAY BE SOME HIGH CLOUDS TO CONTEND
WITH...WILL STILL GO AT OR BLO THE COOLER GFS MOS GUIDANCE GIVEN THE
OTHER FAVORABLE RADIATIONAL COOLING FACTORS.
&&
.AVIATION (FOR THE 18Z TAF ISSUANCE)...
MAIN CONCERN IS FOR RESTRICTED VSBY DUE TO SNOW/BLOWING SNOW AT KCMX
LATE THIS AFTERNOON AND THROUGH THE EVENING. A LINGERING LOW LEVEL
JET OVER THE AREA WILL CAUSE A WIND SHEAR EARLY THIS
AFTERNOON...BEFORE PRESSURE GRADIENT INCREASES THE SFC WINDS AS COLD
FRONT APPROACHES. UPPER TROF/SFC LOW CONTINUES TO APPROACH THE
REGION...WITH LIGHT SNOW DEVELOPING OVER THE ARROWHEAD OF MN.
WESTERLY WINDS PICK UP WITH TIGHTENING PRES GRADIENT...WITH
STRONGEST WINDS ASSOCIATED WITH THE PASSAGE OF SECOND COLD FRONT
DURING THE EVENING. THE ASSOCIATED STRONG PRESSURE RISE COUPLET WITH
THE FRONT WILL PRODUCE GUSTY NW WINDS IN THE 40-45KT RANGE ALONG THE
KEWEENAW PENINSULA ESPECIALLY IN THE 00-03Z TIME PERIOD. COMBINED
WITH THE -SN AND BLSN...THIS WILL PRODUCE A FAIRLY LONG TIME PERIOD
OF VLIFR CONDITIONS DURING THE EVENING AT KCMX. KSAW TRANSITIONING
TO MVFR CONDITIONS AT THIS TIME AS SFC TROF BRINGS LOWER STRATUS
IN AND POSSIBLY SOME 5SM VSBYS. DONT EXPECT WINDS TO STRENGTHEN TO
KCMX VALUES...BUT DO THINK SOME 25-30KT GUSTS ARE POSSIBLE AS
SECONDARY FRONT MOVES THROUGH AROUND 06Z. WINDS WILL GRADUALLY
DIMINISH AT KCMX AND KSAW AFTER 06Z...AS SFC LOW TRACKS FARTHER E.
TAPERED -SN OFF AT KCMX DURING THE MORNING...AS DRIER AIR AND LOWER
INVERSION HEIGHTS LIMIT CONFIDENCE OF SNOW THERE. ENDED -SN EARLIER
AT KSAW...WITH DRIER AIR ALOFT LIMITING -SN TO AREAS NEAR LK
SUPERIOR.
&&
.MARINE (FOR THE 4 AM LAKE SUPERIOR FORECAST ISSUANCE)...
THE LOW PRESSURE AREA WILL MOVE ACROSS SOUTH CENTRAL CANADA TODAY
BECOMING JUST NORTH OF WAWA THIS EVENING. THIS LOW WILL TRACK INTO
SOUTHEAST QUEBEC LATE TONIGHT. WIND GUST AS HIGH AS 37KNOTS ARE
BEING REPORTED OVER THE DAKOTAS THIS MORNING WITH THIS SYSTEM. IF
THIS PERSIST...GALE FORCE GUSTS WILL MOVE OF THE LAKE LATE THIS
AFTERNOON. MEANWHILE...A RIDGE OF HIGH PRESSURE WILL MOVE INTO THE
NORTHERN MINNESOTA THIS EVENING BRINGING LIGHTER WINDS TO THE AREA.
SOUTH TO SOUTHWEST WINDS OF 20-30KT WILL DEVELOP AHEAD OF THE LOW
TONIGHT AND THIS MORNING. BEHIND THE LOW THERE WILL BE A SHORT
PERIOD OF NORTHWEST GALES TONIGHT...MAINLY OVER CENTRAL AND EASTERN
LAKE SUPERIOR. ANOTHER RIDGE WILL MOVE THROUGH LAKE SUPERIOR ON
FRIDAY AND FRIDAY EVENING. ANOTHER LOW WILL RACE ACROSS NORTHERN
ONTARIO ON SATURDAY BRINGING STRONG GUSTY WINDS TO THE LAKE AGAIN.
&&
.MQT WATCHES/WARNINGS/ADVISORIES...
MICHIGAN...LAKE EFFECT SNOW AND BLOWING SNOW ADVISORY FROM 1 AM TO 10 AM
EST FRIDAY FOR MIZ001-003.
BLIZZARD WARNING FROM 4 PM THIS AFTERNOON TO 1 AM EST FRIDAY FOR
MIZ001-003.
LAKE EFFECT SNOW ADVISORY FROM 4 PM EST /3 PM CST/ THIS
AFTERNOON TO 10 AM EST /9 AM CST/ FRIDAY FOR MIZ004-009-084.
LAKE EFFECT SNOW AND BLOWING SNOW ADVISORY FROM 4 PM THIS
AFTERNOON TO 10 AM EST FRIDAY FOR MIZ002.
LAKE EFFECT SNOW AND BLOWING SNOW ADVISORY FROM 7 PM THIS
EVENING TO 1 PM EST FRIDAY FOR MIZ006-007-085.
LAKE EFFECT SNOW ADVISORY FROM 7 PM THIS EVENING TO 1 PM EST
FRIDAY FOR MIZ005.
LAKE SUPERIOR...HEAVY FREEZING SPRAY WARNING FROM 7 PM THIS EVENING TO 1 PM EST
FRIDAY FOR LSZ265>267.
GALE WARNING FROM 4 PM THIS AFTERNOON TO 6 AM EST FRIDAY FOR
LSZ263>267.
HEAVY FREEZING SPRAY WARNING FROM 7 PM THIS EVENING TO 7 AM EST
FRIDAY FOR LSZ263-264.
GALE WARNING UNTIL 1 AM EST FRIDAY FOR LSZ242>244.
LAKE MICHIGAN...NONE.
&&
UPDATE...SRF
DISCUSSION...ROLFSON
AVIATION...SRF
MARINE...DLGHAZARDOUS WEATHER OUTLOOK...UPDATED NATIONAL WEATHER SERVICE MARQUETTE MI 150 PM EST THU DEC 13 2007 MIZ001-003-141200- KEWEENAW-NORTHERN HOUGHTON- 150 PM EST THU DEC 13 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL UPPER MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT HEAVY LAKE EFFECT SNOW SHOWERS ARE EXPECTED BY EARLY THIS EVENING. IN ADDITION...STRONG WINDS WILL CAUSE BLOWING SNOW AND WHITEOUT CONDITIONS THIS EVENING. CONDITIONS WILL IMPROVE AFTER MIDNIGHT TONIGHT AS WINDS AND BLOWING SNOW DIMINISH. A BLIZZARD WARNING IS IN EFFECT FOR THIS EVENING. SEE THE LATEST WINTER WEATHER STATEMENT FOR DETAILS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY LAKE EFFECT SNOW WILL DIMINISH FRIDAY MORNING. SEE THE LATEST WINTER WEATHER STATEMENT FOR DETAILS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED...BUT SPOTTERS ARE ENCOURAGED TO REPORT SNOW ACCUMULATIONS AND ANY SIGNIFICANT BLOWING SNOW TO THE NATIONAL WEATHER SERVICE. MIZ002-004-009-084-141200- ONTONAGON-BARAGA-GOGEBIC-SOUTHERN HOUGHTON- 150 PM EST THU DEC 13 2007 /1250 PM CST THU DEC 13 2007/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF WESTERN UPPER MICHIGAN AND CENTRAL UPPER MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT LAKE EFFECT SNOW...POSSIBLY LOCALLY HEAVY...IS EXPECTED LATE THIS AFTERNOON AND TONIGHT. IN ADDITION...STRONG WINDS WILL CAUSE BLOWING SNOW...ESPECIALLY LATE IN THE AFTERNOON AND EVENING. EXPECT SHARPLY REDUCED VISIBILITIES IN SNOW AND BLOWING SNOW. SEE THE LATEST WINTER WEATHER STATEMENT FOR DETAILS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY LAKE EFFECT SNOW AND WINDS WILL DIMINISH FRIDAY MORNING. SEE THE LATEST WINTER WEATHER STATEMENT FOR DETAILS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED...BUT SPOTTERS ARE ENCOURAGED TO REPORT SNOW ACCUMULATIONS AND ANY SIGNIFICANT BLOWING SNOW TO THE NATIONAL WEATHER SERVICE. MIZ005>007-085-141200- MARQUETTE-ALGER-LUCE-NORTHERN SCHOOLCRAFT- 150 PM EST THU DEC 13 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL UPPER MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT LAKE EFFECT SNOW...POSSIBLY LOCALLY HEAVY...IS EXPECTED TONIGHT. IN ADDITION...STRONG WINDS WILL CAUSE BLOWING SNOW...ESPECIALLY LATE IN THE EVENING AND OVERNIGHT. EXPECT SHARPLY REDUCED VISIBILITIES IN SNOW AND BLOWING SNOW. SEE THE LATEST WINTER WEATHER STATEMENT FOR DETAILS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY LAKE EFFECT SNOW AND BLOWING SNOW WILL DIMINISH FRIDAY MORNING. SEE THE LATEST WINTER WEATHER STATEMENT FOR DETAILS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED...BUT SPOTTERS ARE ENCOURAGED TO REPORT SNOW ACCUMULATIONS AND ANY SIGNIFICANT BLOWING SNOW TO THE NATIONAL WEATHER SERVICE. MIZ010>014-141200- IRON-DICKINSON-MENOMINEE-DELTA-SOUTHERN SCHOOLCRAFT- 150 PM EST THU DEC 13 2007 /1250 PM CST THU DEC 13 2007/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF CENTRAL UPPER MICHIGAN. .DAY ONE...THIS AFTERNOON 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. LSZ162-240>251-263>267-141200- LAKE SUPERIOR WEST OF A LINE FROM SAXON HARBOR WI TO GRAND PORTAGE MN BEYOND 5NM-SAXON HARBOR WI TO BLACK RIVER MI- BLACK RIVER TO ONTONAGON MI- ONTONAGON TO UPPER ENTRANCE OF PORTAGE CANAL MI- UPPER ENTRANCE OF PORTAGE CANAL TO EAGLE RIVER MI- EAGLE RIVER TO MANITOU ISLAND MI- MANITOU ISLAND TO POINT ISABELLE MI- POINT ISABELLE TO LOWER ENTRANCE OF PORTAGE CANAL MI- LOWER ENTRANCE OF PORTAGE CANAL TO HURON ISLANDS MI INCLUDING KEWEENAW AND HURON BAYS-HURON ISLANDS TO MARQUETTE MI- MARQUETTE TO MUNISING MI-MUNISING TO GRAND MARAIS MI- GRAND MARAIS TO WHITEFISH POINT MI- LAKE SUPERIOR FROM SAXON HARBOR WI TO UPPER ENTRANCE TO PORTAGE CANAL MI 5NM OFF SHORE TO THE US/CANADIAN BORDER INCLUDING ISLE ROYALE NATIONAL PARK- LAKE SUPERIOR FROM UPPER ENTRANCE TO PORTAGE CANAL TO MANITOU ISLAND MI 5NM OFF SHORE TO THE US/CANADIAN BORDER- LAKE SUPERIOR WEST OF LINE FROM MANITOU ISLAND TO MARQUETTE MI BEYOND 5NM FROM SHORE- LAKE SUPERIOR EAST OF A LINE FROM MANITOU ISLAND TO MARQUETTE MI AND WEST OF A LINE FROM GRAND MARAIS MI TO THE US/CANADIAN BORDER BEYOND 5NM FROM SHORE- LAKE SUPERIOR FROM GRAND MARAIS MI TO WHITEFISH POINT MI 5NM OFF SHORE TO THE US/CANADIAN BORDER- 150 PM EST THU DEC 13 2007 /1250 PM CST THU DEC 13 2007/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN LAKE SUPERIOR...CENTRAL LAKE SUPERIOR AND WESTERN LAKE SUPERIOR. .DAY ONE...THIS AFTERNOON AND TONIGHT WEST TO NORTHWEST GALE FORCE WINDS OF 40 TO 45 KNOTS ARE EXPECTED OVER MOST OF LAKE SUPERIOR THROUGH TONIGHT. STORM FORCE GUSTS TO 50 KNOTS ARE POSSIBLE OVER THE CENTRAL PORTION OF LAKE SUPERIOR THIS EVENING. HEAVY FREEZING SPRAY IS EXPECTED OVER MUCH OF LAKE SUPERIOR TONIGHT. SEE THE LATEST LAKE SUPERIOR OPEN LAKE FORECAST FOR DETAILS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY HEAVY FREEZING SPRAY IS EXPECTED OVER CENTRAL AND EASTERN LAKE SUPERIOR FRIDAY MORNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. LMZ221-248-250-141200- GREEN BAY NORTH OF LINE FROM CEDAR RIVER MI TO ROCK ISLAND PASSAGE-SEUL CHOIX POINT TO POINT DETOUR MI- 5NM EAST OF A LINE FROM FAIRPORT MI TO ROCK ISLAND PASSAGE- 150 PM EST THU DEC 13 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN LAKE LAKE MICHIGAN. .DAY ONE...THIS AFTERNOON AND TONIGHT WEST TO NORTHWEST GALE FORCE GUSTS TO 35 KNOTS ARE POSSIBLE THIS EVENING. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED. JLA
The national radar mosaic for the moment the first event began.
1 winter weather, 1 blizzard. Local standard time, as filed.
Briefly heavy lake effect snow reduced visibility to a quarter mile or less at times from Eagle River to Lac La Belle. Snowfall amounts ending on the morning of the 14th included four inches at Phoenix and four to six inches at Eagle River.
Frequent wind gusts at or above 35 mph and visibility frequently reduced to less than a quarter-mile were reported from Calumet to Houghton between 530 and 1030 pm.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Michigan in 2007Every state in 2007This day in weather historyWarnings in Michigan, December 2007
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 70943, 70937.