Precipitation for the month of August 2007 was nearly two inches below normal across parts of northern Wisconsin.
Every event with a place to put it; 1 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.
Precipitation for the month of August 2007 was nearly two inches below normal across parts of northern Wisconsin.
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 Jul 31, 1:51 PM CST, 10 hours 9 minutes earlier.
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREEN BAY WI 251 PM CDT TUE JUL 31 2007 .SHORT TERM...TONIGHT AND WEDNESDAY HIGH PRESSURE WILL BRING ANOTHER CLEAR NIGHT TO THE REGION. WITH DEW POINTS A TAD HIGHER THAN YESTERDAY...DID BRING UP LOWS A FEW DEGREES FROM THIS MORNING. WITH WATER TEMPERATURES OVER THE BAY AND LAKE AROUND 70...LOWS ALONG THE LAKE SHORE MAY BE A FEW DEGREES WARMER THAN INLAND LOCATIONS. THIS IS WHAT HAPPENED THIS MORNING AND WILL FOLLOW THAT TREND FOR TONIGHT. A HOT DAY IS IN STORE FOR THE REGION...WITH HIGHS AT MOST LOCATIONS IN THE 90 TO 95 DEGREE RANGE. THE LAKE SHORE MAY BE A TAD BIT COOLER TOMORROW...ALTHOUGH THAT IS NOT A CERTAINTY DEPENDING ON HOW QUICK THE GRADIENT WINDS PICK UP. ANY COOLING WOULD BE CONFINED TO THE IMMEDIATE LAKE SHORE REGION. TRENDED TOWARD THE WARMER NGM/MAV GUIDANCE FOR HIGHS. MET GUIDANCE HAS BEEN TOO COOL...ESPECIALLY AT GREEN BAY AND MANITOWOC. .LONG TERM...WEDNESDAY NIGHT THROUGH NEXT TUESDAY. FRONTAL BOUNDARY MOVING INTO WESTERN DAKOTAS THIS AFTERNOON PROGGED TO REACH NW LATE WEDNESDAY NIGHT BEFORE EXITING EC WI DURING THURSDAY AFTN. LATEST MODEL TREND IS FOR A SLIGHTLY FASTER MOVEMENT IN THE NEAR ZONAL FLOW...WILL GO WITH THAT TREND DUE GOOD MODEL AGREEMENT. ALTHOUGH HIGHER SURFACE DEWPOINTS WORKING NRN AHEAD OF THE FRONT...WARM AIR MASS HAVING DIFFICULTY SATURATING FOR WIDESPREAD CONVECTION...AND UPPER HEIGHT FALLS NOT AS IMPRESSIVE COMPARED TO LAST FEW RUNS. AS FAR AS SEVERE...FRONT OVERALL PASSING OVER THE CWA DURING NON PEAK HEATING PERIOD...ALTHOUGH THERE IS A POTENTIAL WINDOW OF SOME SCT ACTIVE WEATHER FOR THURSDAY AFTN BEFORE THE FRONT DEPARTS DURING AFTN PEAK HEATING. HIGH PRESSURE SETTLES IN THURSDAY NIGHT THROUGH EARLY IN THE WEEKEND. HOWEVER THE FCST BEGINS TO DIVERT WITH RETURN FLOW AND BOUNDARY LOCATION. SOME CONSENSUS FOR SURFACE WAVE TO WORK ALONG THE FRONT LATER SATURDAY INTO SUNDAY. WILL CONCENTRATE HIGHER POPS FOR THIS PERIOD BUT ACKNOWLEDGE SOME ADJUSTEMENT WILL LIKELY BE NEEDED IN THE FCST. THIS QUESTIONABLE FRONTAL UNCERTAINTY CONTINUES INTO TUESDAY AS WELL. && .AVIATION...HIGH PRESSURE WILL REMAIN ACROSS WISCONSIN THROUGH TONIGHT...THEN A COLD FRONT WILL APPROACH THE STATE FROM THE WEST ON WEDNESDAY. VFR CONDITIONS WILL CONTINUE THROUGH WEDNESDAY. THE ONLY EXCEPTION MAY BE SOME LOCAL MVFR/IFR CONDITIONS BETWEEN 06Z-11Z DUE TO FOG. SOME CUMULUS CLOUDS MAY DEVELOP TOMORROW ACROSS THE WEST...BUT SCATTERED COVERAGE WOULD MORE THAN LIKELY BE THE GREATEST COVERAGE FOR CLOUDS. && .GRB WATCHES/WARNINGS/ADVISORIES... NONE. && ECKBERG/TDH
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREEN BAY WI 342 AM CDT TUE JUL 31 2007 WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-011145- 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- 342 AM CDT TUE JUL 31 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH-CENTRAL AND NORTHEAST WISCONSIN. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THERE IS A CHANCE OF THUNDERSTORMS WEDNESDAY NIGHT INTO THURSDAY AS A COLD FRONT MOVES THROUGH THE REGION. WIDESPREAD SEVERE WEATHER IS NOT ANTICIPATED DURING THIS PERIOD. THERE IS ALSO A CHANCE OF THUNDERSTORMS FROM SATURDAY THROUGH MONDAY...BUT IT IS TOO EARLY TO DETERMINE IF SEVERE WEATHER WILL DEVELOP. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY OR TONIGHT. LMZ521-522-541>543-564-011145- THE BAY OF GREEN BAY SOUTH OF A LINE FROM CEDAR RIVER MI TO ROCK ISLAND PASSAGE-LAKE MICHIGAN FROM WASHINGTON ISLAND TO SHEBOYGAN- THE ADJOINING WISCONSIN WATERS OF LAKE MICHIGAN OUT TO MID-LAKE- 342 AM CDT TUE JUL 31 2007 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE WATERS OF CENTRAL AND SOUTHERN GREEN BAY...AND LAKE MICHIGAN FROM ROCK ISLAND PASSAGE TO SHEBOYGAN. .DAY ONE...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY THERE IS A CHANCE OF THUNDERSTORMS LATE WEDNESDAY NIGHT INTO THURSDAY AS A COLD FRONT MOVES THROUGH THE REGION. WIDESPREAD SEVERE WEATHER IS NOT ANTICIPATED DURING THIS PERIOD. THERE IS ALSO A CHANCE OF THUNDERSTORMS FROM SATURDAY THROUGH MONDAY...BUT IT IS TOO EARLY TO DETERMINE IF SEVERE WEATHER WILL DEVELOP. TSK/MG
The national radar mosaic for the moment the first event began.
1 drought. Local standard time, as filed.
Below normal rainfall caused D2, severe drought, conditions to persist in Vilas County throughout the month.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wisconsin in 2007Every state in 2007This day in weather historyWarnings in Wisconsin, August 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: 54951.