Lack of significant rainfall for the last couple of weeks of November led to worsening drought conditions. Parts of Lincoln County, Oneida County and Vilas County that were experiencing moderate drought (D1) conditions earlier in the month, were classified as severe drought (D2) starting on the 27th of the month, and continuing into December 2012.
Every event with a place to put it; 3 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 GRB wrote it up.
Lack of significant rainfall for the last couple of weeks of November led to worsening drought conditions. Parts of Lincoln County, Oneida County and Vilas County that were experiencing moderate drought (D1) conditions earlier in the month, were classified as severe drought (D2) starting on the 27th of the month, and continuing into December 2012.
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 Green Bay, WI wrote its last area forecast discussion before the first event at Nov 27, 2:58 AM CST, 3 hours 2 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREEN BAY WI 258 AM CST TUE NOV 27 2012 .SYNOPSIS...RATHER TRANQUIL WX FOR THIS TIME OF YEAR WITH TEMPERATURES MODERATING BACK TO ABOVE NORMAL. BROAD BUT SHALLOW LARGE-SCALE TROF NOW OVER THE GREAT LAKES RGN WL SHIFT INTO THE ERN CONUS AND THEN LIFT OUT ACRS ERN CANADA ALLOWING THE UPR FLOW TO FLATTEN BACK TO ZONAL FOR LATE IN THE WEEK AND THE WEEKEND. THE TREND FOR NEXT WEEK SEEMS TO BE FOR AN UPR TROF FM THE ERN PAC TO PROGRESS INTO THE WRN CONUS...BUT WITH ONLY MODEST AMPLIFICATION. THE DEVELOPING ZONAL FLOW REGIME WL ALLOW TEMPS TO RISE BACK TO ABV NORMAL LEVELS...THOUGH THE SNOW COVER NOW ACRS MUCH OF THE AREA MAY SLOW THAT A BIT. THE ZONAL REGIME WL BRING WEAK WX SYSTEMS ACRS THE AREA FM TIME TO TIME. THOSE WL GENERATE SOME LGT PCPN...BUT WITH GULF MOISTURE REMAINING WELL TO OUR S...AMNTS SHOULD END UP BLO NORMAL FOR THE PERIOD. && .SHORT TERM...TDA/TNGT/WED. FAIRLY TRANQUIL WX FOR EARLY WINTER. UPR TROF CROSSING THE RGN TDA/TNGT WL STRENGTHEN A BIT AS SPEED MAX DIGS ESE DOWN THE UPSTREAM SIDE OF THE TROF. COMBO OF SOME QG FORCING AND DIV IN LFQ OF SPEED MAX MAY GENERATE SOME SHSN ACRS THE N AT TIMES...ESP INVOF COLD FRONT SLIPPING INTO THE FCST AREA TDA/TNGT. WL CARRY CHC POPS ACRS THE N...AND JUST FLURRIES ACRS MOST OF THE REST OF THE AREA AS MOISTURE WL BE LIMITED. ANY LINGERING PCPN SHOULD END EARLY WED. TEMPS FM PREV FCST SEEMED REASONABLE SO NO SIG CHGS NEEDED. .LONG TERM...WEDNESDAY NIGHT THROUGH MONDAY. UPPER FLOW WAS FORECAST TO BECOME ZONAL BY THE END OF THE WEEK WITH RELATIVELY WEAK SHORT WAVES PASSING THROUGH THE REGION BEFORE A TROUGH AMPLIFIES OVER THE PLAINS EARLY NEXT WEEK. THE ZONAL FLOW SHOULD RESULT IN A WARMING TREND FOR THE AREA...WITH HIGHS 10 DEGREES OR MORE ABOVE NORMAL BY THE END OF THE PERIOD. THE WARMER TEMPERATURES SHOULD RESULT IN MORE LIQUID THAN FROZEN PRECIPITATION WITH THE PASSING SHORT WAVES...AND THE SYSTEMS SHOULD NOT BRING MUCH MOISTURE ALONG WITH THEM. HAVE CHANCES FOR MAINLY RAIN DURING THE WEEKEND WITH SOME SLIGHT CHANCE POPS DURING THE WEEK. && .AVIATION...FOR THE 12Z TAF ISSUANCE. EXPECT MAINLY VFR CONDITIONS...THOUGH SOME MVFR CIGS NOW OVER NRN MN COULD SLIP INTO THE N TNGT. && .GRB WATCHES/WARNINGS/ADVISORIES... NONE. && SKOWRONSKI/MG
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREEN BAY WI 310 AM CST TUE NOV 27 2012 WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-281200- VILAS-ONEIDA-FOREST-FLORENCE-NORTHERN MARINETTE-LINCOLN-LANGLADE- MENOMINEE-NORTHERN OCONTO-DOOR-MARATHON-SHAWANO-WOOD-PORTAGE- WAUPACA-OUTAGAMIE-BROWN-KEWAUNEE-WAUSHARA-WINNEBAGO-CALUMET- MANITOWOC-SOUTHERN MARINETTE-SOUTHERN OCONTO- 310 AM CST TUE NOV 27 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL AND NORTHEAST WISCONSIN. .DAY ONE...TODAY AND TONIGHT THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT. LMZ521-522-541>543-281200- THE BAY OF GREEN BAY SOUTH OF A LINE FROM CEDAR RIVER MI TO ROCK ISLAND PASSAGE-LAKE MICHIGAN FROM WASHINGTON ISLAND TO SHEBOYGAN- 310 AM CST TUE NOV 27 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHWEST LAKE MICHIGAN AND THE WATERS OF GREEN BAY. .DAY ONE...TODAY AND TONIGHT THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW. SKOWRONSKI
The national radar mosaic for the moment the first event began.
3 drought. Local standard time, as filed.
Severe drought (D2) conditions expanded to included far southwest Vilas County by late November. The severe drought (D2) continued into December 2012.
Severe drought (D2) conditions expanded to included the western half of Oneida County by late November. The severe drought (D2) continued into December 2012.
Severe drought (D2) conditions expanded to included far northwest Lincoln County by late November. The severe drought (D2) continued into December 2012.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wisconsin in 2012Every state in 2012This day in weather historyWarnings in Wisconsin, November 2012
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: 415794, 415795, 415796.