Alert archive / Wisconsin / Flash Flood Watches in 2018
Flash Flood Watch 4, NWS Green Bay, WI
NWS Green Bay, WI issued this flash flood watch at Aug 28, 2018, 4:08 AM CDT for Brown County, Kewaunee County, Outagamie County, Wisconsin. It took effect at Aug 28, 2018, 12:00 PM CDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Aug 28, 2018, 4:08 AM CDT (09:08 UTC)
- In effect from
- Aug 28, 2018, 12:00 PM CDT
- Expired
- Aug 28, 2018, 9:05 PM CDT
- In force
- 9 hr
- Issued by
- NWS Green Bay, WI
- Flood severity
- None
Counties Brown County, WI, Kewaunee County, WI, Outagamie County, WI
The radar
The Green Bay radar (KGRB), 11 km from the middle of the area, began a volume at 09:10 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
Green Bay/Straub, WI (KGRB), launched 00:00Z, 9.1 hours before the alert went out and 9 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.
- Mixed-layer CAPE
- 1227 J/kg
- Mixed-layer CIN
- -75 J/kg
- Mixed-layer LCL
- 1085 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 198 m²/s²
- 0-3 km storm-relative helicity
- 370 m²/s²
- Significant tornado parameter
- 1.1
- Supercell composite
- 13.5
The text
As transmitted.
070 WGUS63 KGRB 280908 FFAGRB URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Green Bay WI 408 AM CDT Tue Aug 28 2018 ...ADDITIONAL HEAVY RAINFALL POSSIBLE THROUGH THIS EVENING... .Additional heavy rainfall is possible through this evening. Ongoing thunderstorms from Wautoma to Manitowoc will end early this morning, then there will be a break in the rains during the middle to late morning. But another round of widespread showers and thunderstorms is expected this afternoon and evening, bringing a returned threat of flooding. WIZ038>040-281600- /O.NEW.KGRB.FF.A.0004.180828T1700Z-180829T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Outagamie-Brown-Kewaunee- Including the cities of Appleton, Green Bay, Kewaunee, and Luxemburg 408 AM CDT Tue Aug 28 2018 ...FLASH FLOOD WATCH IN EFFECT FROM NOON CDT TODAY THROUGH THIS EVENING... The National Weather Service in Green Bay has issued a * Flash Flood Watch for a portion of northeast Wisconsin, including the following areas, Brown, Kewaunee, and Outagamie counties. * From noon CDT today through this evening. * A widespread 1 to 2 inch rainfall is expected during the afternoon and evening, with local amounts to 3 inches possible. * The heavy rain could result in flooding, especially in urban areas and near streams and rivers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ WIZ045-048>050-281600- /O.EXT.KGRB.FF.A.0003.000000T0000Z-180829T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Waushara-Winnebago-Calumet-Manitowoc- Including the cities of Redgranite, Wautoma, Oshkosh, Neenah, Menasha, Chilton, Brillion, New Holstein, Manitowoc, and Two Rivers 408 AM CDT Tue Aug 28 2018 ...FLASH FLOOD WATCH NOW IN EFFECT THROUGH THIS EVENING... The Flash Flood Watch is now in effect for * Portions of central Wisconsin and east central Wisconsin, including Waushara, Calumet, Manitowoc, and Winnebago Counties. * Through this evening. * Rain will diminish early today. But another round of rain is likely during the afternoon and evening. An additional rainfall of 1 to 2 inches is expected during the afternoon and evening, with local amounts to 3 inches possible. * The heavy rain could result in flooding, especially in urban areas and near streams and rivers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ Skowronski
5 follow-up statements
348 WGUS63 KGRB 281550 FFAGRB Flood Watch National Weather Service Green Bay WI 1050 AM CDT Tue Aug 28 2018 ...ADDITIONAL HEAVY RAINFALL POSSIBLE THIS AFTERNOON AND EVENING... .Additional heavy rainfall is possible through this evening. Thunderstorms are expected to redevelop around early to mid after noon, and impact much of central to northeast Wisconsin. These storms will renew the threat of flooding. WIZ045-048>050-290500- /O.CON.KGRB.FF.A.0003.000000T0000Z-180829T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Waushara-Winnebago-Calumet-Manitowoc- Including the cities of Redgranite, Wautoma, Oshkosh, Neenah, Menasha, Chilton, Brillion, New Holstein, Manitowoc, and Two Rivers 1050 AM CDT Tue Aug 28 2018 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING... The Flash Flood Watch continues for * Portions of central Wisconsin and east central Wisconsin, including the following areas, in central Wisconsin, Waushara. In east central Wisconsin, Calumet, Manitowoc, and Winnebago. * Through this evening * Another round of rain is likely during the afternoon and evening. An additional rainfall of 1 to 2 inches is expected during the afternoon and evening, with local amounts to 3 inches possible. * The heavy rain could result in flooding, especially in urban areas and near streams and rivers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ WIZ038>040-290500- /O.CON.KGRB.FF.A.0004.180828T1700Z-180829T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Outagamie-Brown-Kewaunee- Including the cities of Appleton, Green Bay, Kewaunee, and Luxemburg 1050 AM CDT Tue Aug 28 2018 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH THIS EVENING... The Flash Flood Watch continues for * A portion of northeast Wisconsin, including the following areas, Brown, Kewaunee, and Outagamie. * Through this evening * A widespread 1 to 2 inch rainfall is expected during the afternoon and evening, with local amounts to 3 inches possible. * The heavy rain could result in flooding, especially in urban areas and near streams and rivers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ mpc
209 WGUS63 KGRB 281943 FFAGRB URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Green Bay WI 243 PM CDT Tue Aug 28 2018 ...HEAVY RAINFALL POSSIBLE THROUGH LATE TONIGHT... .Heavy rainfall is possible through midnight. Thunderstorms are expected to impact much of central to northeast Wisconsin for the rest of this afternoon and evening. These storms will bring a threat of flooding rains. WIZ036-037-290500- /O.EXA.KGRB.FF.A.0003.000000T0000Z-180829T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Portage-Waupaca- Including the cities of Stevens Point, Plover, New London, Waupaca, and Clintonville 243 PM CDT Tue Aug 28 2018 ...FLASH FLOOD WATCH IN EFFECT UNTIL MIDNIGHT CDT TONIGHT... The National Weather Service in Green Bay has expanded the * Flash Flood Watch to include portions of central Wisconsin and northeast Wisconsin, including the following areas, in central Wisconsin, Portage. In northeast Wisconsin, Waupaca. * Until midnight CDT tonight * Heavy rainfall is possible through midnight. Rainfall of 1 to 2 inches is expected, with local amounts to 3 inches possible. * The heavy rain could result in flooding, especially in urban areas and near streams and rivers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ WIZ045-048>050-290500- /O.CON.KGRB.FF.A.0003.000000T0000Z-180829T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Waushara-Winnebago-Calumet-Manitowoc- Including the cities of Redgranite, Wautoma, Oshkosh, Neenah, Menasha, Chilton, Brillion, New Holstein, Manitowoc, and Two Rivers 243 PM CDT Tue Aug 28 2018 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT... The Flash Flood Watch continues for * Portions of central Wisconsin and east central Wisconsin, including the following areas, in central Wisconsin, Waushara. In east central Wisconsin, Calumet, Manitowoc, and Winnebago. * Until midnight CDT tonight * Heavy rainfall is expected through midnight. Rainfall of 1 to 2 inches is expected, with local amounts to 3 inches possible. * The heavy rain could result in flooding, especially in urban areas and near streams and rivers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ WIZ038>040-290500- /O.CON.KGRB.FF.A.0004.000000T0000Z-180829T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Outagamie-Brown-Kewaunee- Including the cities of Appleton, Green Bay, Kewaunee, and Luxemburg 243 PM CDT Tue Aug 28 2018 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT... The Flash Flood Watch continues for * A portion of northeast Wisconsin, including the following areas, Brown, Kewaunee, and Outagamie. * Until midnight CDT tonight * A widespread 1 to 2 inch rainfall is expected through midnight, with local amounts to 3 inches possible. * The heavy rain could result in flooding, especially in urban areas and near streams and rivers. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ mpc
860 WGUS63 KGRB 282230 FFAGRB Flood Watch National Weather Service Green Bay WI 530 PM CDT Tue Aug 28 2018 ...LOCALLY HEAVY RAINFALL POSSIBLE THIS EVENING... .Sporadic heavy rainfall will continue this evening, and urban flooding is occurring over parts of central and east central Wisconsin. WIZ036-037-045-048>050-290500- /O.CON.KGRB.FF.A.0003.000000T0000Z-180829T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Portage-Waupaca-Waushara-Winnebago-Calumet-Manitowoc- Including the cities of Stevens Point, Plover, New London, Waupaca, Clintonville, Redgranite, Wautoma, Oshkosh, Neenah, Menasha, Chilton, Brillion, New Holstein, Manitowoc, and Two Rivers 530 PM CDT Tue Aug 28 2018 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT... The Flash Flood Watch continues for * Portions of central Wisconsin, east central Wisconsin, and northeast Wisconsin, including the following areas, in central Wisconsin, Portage and Waushara. In east central Wisconsin, Calumet, Manitowoc, and Winnebago. In northeast Wisconsin, Waupaca. * Until midnight CDT tonight * Pockets of heavy rainfall may continue this evening, but additional rainfall amounts should remain under an inch. * Urban and small stream flooding is occurring over parts of central and east central Wisconsin, and may continue for several more hours. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ WIZ038>040-290500- /O.CON.KGRB.FF.A.0004.000000T0000Z-180829T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Outagamie-Brown-Kewaunee- Including the cities of Appleton, Green Bay, Kewaunee, and Luxemburg 530 PM CDT Tue Aug 28 2018 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT... The Flash Flood Watch continues for * A portion of northeast Wisconsin, including the following areas, Brown, Kewaunee, and Outagamie. * Until midnight CDT tonight * Pockets of heavy rainfall may continue this evening, but additional rainfall amounts should remain under an inch. * Urban and small stream flooding is occurring over parts of central and east central Wisconsin, and may continue for several more hours. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ TSK
481 WGUS63 KGRB 290053 FFAGRB Flood Watch National Weather Service Green Bay WI 753 PM CDT Tue Aug 28 2018 ...LOCALLY HEAVY RAINFALL POSSIBLE THIS EVENING... .Sporadic heavy rainfall will continue this evening, and urban flooding is occurring over parts of central and east central Wisconsin. WIZ036-037-290200- /O.CAN.KGRB.FF.A.0003.000000T0000Z-180829T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Portage-Waupaca- Including the cities of Stevens Point, Plover, New London, Waupaca, and Clintonville 753 PM CDT Tue Aug 28 2018 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of central Wisconsin and northeast Wisconsin has been cancelled. Portage and Waupaca counties missed out on the heavy rainfall this afternoon, and additional rainfall amounts should remain under a half inch, so the threat of flash flooding has diminished. $$ WIZ045-048>050-290500- /O.CON.KGRB.FF.A.0003.000000T0000Z-180829T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Waushara-Winnebago-Calumet-Manitowoc- Including the cities of Redgranite, Wautoma, Oshkosh, Neenah, Menasha, Chilton, Brillion, New Holstein, Manitowoc, and Two Rivers 753 PM CDT Tue Aug 28 2018 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT... The Flash Flood Watch continues for * Portions of central Wisconsin and east central Wisconsin, including the following areas, in central Wisconsin, Waushara. In east central Wisconsin, Calumet, Manitowoc, and Winnebago. * Until midnight CDT tonight * Pockets of heavy rainfall may continue this evening, but additional rainfall amounts will remain under an inch. * Urban and small stream flooding is occurring over parts of central and east central Wisconsin, but is gradually subsiding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ WIZ038>040-290500- /O.CON.KGRB.FF.A.0004.000000T0000Z-180829T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Outagamie-Brown-Kewaunee- Including the cities of Appleton, Green Bay, Kewaunee, and Luxemburg 753 PM CDT Tue Aug 28 2018 ...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT... The Flash Flood Watch continues for * A portion of northeast Wisconsin, including the following areas, Brown, Kewaunee, and Outagamie. * Until midnight CDT tonight * Pockets of heavy rainfall may continue this evening, but additional rainfall amounts should remain under a half inch. * Urban and small stream flooding is occurring over parts of central and east central Wisconsin, but is gradually subsiding. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation. You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. && $$ TSK
424 WGUS63 KGRB 290205 FFAGRB Flood Watch National Weather Service Green Bay WI 905 PM CDT Tue Aug 28 2018 WIZ045-048>050-290315- /O.CAN.KGRB.FF.A.0003.000000T0000Z-180829T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Waushara-Winnebago-Calumet-Manitowoc- Including the cities of Redgranite, Wautoma, Oshkosh, Neenah, Menasha, Chilton, Brillion, New Holstein, Manitowoc, and Two Rivers 905 PM CDT Tue Aug 28 2018 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for portions of central Wisconsin and east central Wisconsin has been cancelled. The threat of heavy rainfall and flash flooding has diminished, so the flash flood watch has been cancelled. Motorists should still be alert for standing water on area roadways overnight. $$ WIZ038>040-290315- /O.CAN.KGRB.FF.A.0004.000000T0000Z-180829T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Outagamie-Brown-Kewaunee- Including the cities of Appleton, Green Bay, Kewaunee, and Luxemburg 905 PM CDT Tue Aug 28 2018 ...FLASH FLOOD WATCH IS CANCELLED... The Flash Flood Watch for a portion of northeast Wisconsin has been cancelled. The threat of heavy rainfall and flash flooding has diminished, so the flash flood watch has been cancelled. Motorists should still be alert for standing water on area roadways overnight. $$ TSK
What forecasters said that day
The local office's own words before this flash flood watch went out, 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 this flash flood watch went out at Aug 28, 3:40 AM CDT, 28 minutes earlier.
Area forecast discussion, Aug 28, 3:40 AM CDT, 28 minutes before
Area Forecast Discussion National Weather Service Green Bay WI 340 AM CDT Tue Aug 28 2018 Forecast discussion for routine morning forecast issuance .SYNOPSIS... Issued at 335 AM CDT Tue Aug 28 2018 Still very humid with more showers and thunderstorms today--ending from northwest to southeast tonight. Cooler and drier Wednesday. Throughout the period, the upper pattern will be dominated by ridging over the eastern Pacific which will gradually retrograde westward, and downstream troughing over western into central North America. The weather across the forecast area will primarily be affected by oscillations in the amplitude of the pattern. Very humid conditions will persist today, then cooler and drier air will spread across the area Wednesday. Readings should return to AOA normal thereafter. Another significant round of thunderstorms is expected this afternoon and evening. That combined with additional chances later in the period should result in above to much above normal precipitation totals. && .SHORT TERM...Today...Tonight...and Wednesday Issued at 335 AM CDT Tue Aug 28 2018 Ongoing convection continues across the southern tier of counties in the forecast area. The storms continue to backbuild, but there has been a decrease in the amount and intensity of redevelopment over western Wisconsin during the past hour or so. That's likely a result of the LLJ slowly veering westerly and it has been picked up on by the short-term models. So expect the ongoing convection to wane toward daybreak. There should be a lull in the precipitation across the area during the rest of the morning. However, a cold front will slowly sag southeast across the area today. The front combined with increasing large scale forcing from mid-level FGEN and divergence in the RRQ of an upper speed max in the Lake Superior region will lead to another round of convection this afternoon and evening. Severe storms are possible, through widespread clouds will probably limited destabilization and somewhat hold back the severe threat. Damaging wind gusts will be the primary severe hazard. Of greater concern is the flooding potential. Two rounds of heavy rain have already fallen across the southern part of the area-- Monday morning and again late Monday evening and overnight. This is the area at greatest risk of receiving additional heavy rain as the large scale forcing interacts with the very moist air mass (PWATs AOA 2") across the area. The greatest potential for flooding will be from noon to midnight, and over the southeast 1/3 of the forecast area. That period/area needs to be covered by a Flash Flood Watch. The complicating factor is the lingering portion of the current watch, and the fact there is some urban/small stream flooding ongoing. Considered various options for how to manage the headlines, and finally opted to extend the current FFA for the southern tier to midnight, and have a new FFA for Outagamie/Brown/Kewaunee begin at noon. Some adjustments to timing and areal extent may be necessary as convective trends later today become clearer. .LONG TERM...Wednesday Night Through Monday Issued at 335 AM CDT Tue Aug 28 2018 Models are in general agreement with an upper ridge parked over the southeast CONUS and a broad upper trough from the Pacific Northwest into the northern Plains. A series of shortwaves will eject out of this trough and move east-northeast which would impact northeast WI Friday/Saturday and again Monday. Temperatures are expected to be below normal through Thursday, then rise above normal thereafter. High pressure is expected to stretch from the western Great Lakes into southeast Ontario Wednesday night, bringing mostly clear skies, light winds and cool conditions to northeast WI. Would anticipate at least patchy fog across the area due to all the rain from previous days. Min temperatures to range from the upper 30s to lower 40s north-central WI, upper 40s to lower 50s across east-central WI. This high pressure farther to the east, allowing for a return flow to gradually develop over WI. The return of south-southeast winds and mostly sunny skies will provide an uptick in temperatures with readings in the middle to upper 60s near Lake MI, upper 60s to lower 70s elsewhere. As a mid-level shortwave moves through the southwest flow aloft into the Upper MS Valley, increased forcing from this feature, combined with WAA, should at least bring an increase in clouds to central WI later Thursday night. The air mass over northeast WI still looks too dry to support any precipitation. Min temperatures will not be as cool as Wednesday night with readings in the lower 50s north, middle to upper 50s south. This shortwave rides northeast into the western Great Lakes region on Friday and combined with increasing instability (steep mid-level lapse rates), will lead to the next chance for showers/thunderstorms into northeast WI. Depending upon how unstable we can get, some of these storms could become strong and will need to be watched for severe potential. Max temperatures on Friday to be in the lower 70s north-central/near Lake MI, generally middle 70s everywhere else. Additional showers and thunderstorms are expected Friday night into Saturday as a cold front approaches/eventually moves through the region. Depending on rainfall amounts, will have to watch for any flooding potential as the ground will likely be saturated. Max temperatures on Saturday to be in the middle 70s north-central/ near Lake MI, upper 70s to around 80 degrees far northeast WI/ south. Any precipitation left over east-central WI Saturday evening should end as an area of high pressure builds into the region later Saturday night. Skies will gradually become mostly clear and as north-northwest winds become light overnight, cannot rule out patchy fog. The high pressure is forecast to already be shifting east on Sunday, but still have enough influence to keep our forecast dry through the day. Max temperatures Sunday to be in the lower to middle 70s near Lake MI, middle to upper 70s for inland locations. There are issues among the models as to when a warm front will being lifting north into WI early next week. The ECMWF is faster than the GFS with elevated showers/thunderstorms reaching central/ east-central WI by 12Z Monday. The GFS does not bring any precipitation into the forecast area until Monday afternoon. For now, have followed the model consensus which leans toward the faster ECMWF. Max temperatures for Monday to generally be in the middle to upper 70s. && .AVIATION...for 12Z TAF Issuance Issued at 335 AM CDT Tue Aug 28 2018 IFR and some LIFR conditions will persist over the northwest part of the forecast area early today, but should begin to gradually improve after daybreak. Otherwise, the main aviation concern will the thunderstorms this afternoon and evening. && .GRB WATCHES/WARNINGS/ADVISORIES... Flash Flood Watch through this evening for WIZ045-048>050. Flash Flood Watch from noon CDT today through this evening for WIZ038>040. Beach Hazards Statement through this afternoon for WIZ022-WIZ040-050 SYNOPSIS.......Skowronski SHORT TERM.....Skowronski LONG TERM......Kallas AVIATION.......Skowronski
Hazardous weather outlook, Aug 27, 6:56 PM CDT, 9 hours 12 minutes before
Hazardous Weather Outlook National Weather Service Green Bay WI 656 PM CDT Mon Aug 27 2018 WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-290000- Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln- Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano- Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago- Calumet-Manitowoc-Southern Marinette County- Southern Oconto County- 656 PM CDT Mon Aug 27 2018 This Hazardous Weather Outlook is for north-central and northeast Wisconsin. .DAY ONE...Tonight There is an enhanced risk of severe storms across the area tonight. The primary concerns with these storms are damaging winds and an isolated tornado. Torrential rainfall could lead to flooding, especially across parts of central and east-central Wisconsin, at locations that received heavy rain last night. Large waves may result in dangerous currents and hazardous swimming conditions on Lake Michigan beaches tonight. .DAYS TWO THROUGH SEVEN...Tuesday through Monday There is a marginal risk of severe storms south of a line from Wausaukee to Wisconsin Rapids on Tuesday afternoon and evening. Damaging winds and large hail are the main concerns with the storms. Additional heavy rainfall could also lead to flooding. Large waves may result in dangerous currents and hazardous swimming conditions on Lake Michigan beaches into early Tuesday afternoon. There is another chance for thunderstorms late Friday afternoon through Saturday. It is too early to determine their severe potential. .SPOTTER INFORMATION STATEMENT... Spotters are requested to report rainfall amounts in excess of one inch, flooding, or any other severe weather to the National Weather Service in Green Bay. LMZ521-522-541>543-290000- The Bay of Green Bay south of a line from Cedar River MI to Rock Island Passage-Lake Michigan from Washington Island to Sheboygan- 656 PM CDT Mon Aug 27 2018 This Hazardous Weather Outlook is for portions of northwest Lake Michigan and the waters of Green Bay. .DAY ONE...Tonight Areas of dense marine fog will impact the nearshore waters south of Sturgeon Bay through midnight. Thunderstorms are likely tonight. Some of these storms could be strong or severe from late evening through the early overnight hours. Conditions hazardous to small craft are expected tonight, on the nearshore waters of Lake Michigan and on the waters of Green Bay, due to increasing southerly winds and waves. .DAYS TWO THROUGH SEVEN...Tuesday through Monday There is a chance of thunderstorms at times Tuesday afternoon and evening. Some of these storms could be strong or severe. Thunderstorms are possible again Friday night into next weekend. Conditions hazardous to small craft are expected to continue Tuesday morning into early Tuesday afternoon on the waters of Lake Michigan. Kieckbusch
In the hours before
Local storm report, Aug 28, 12:22 AM CDT, 3 hours 46 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
1222 AM CDT TUE AUG 28 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1027 PM TSTM WND DMG HARRISON 44.13N 88.29W
08/27/2018 CALUMET WI LAW ENFORCEMENT
TREE DOWN. TIME ESTIMATED BY RADAR. DELAYED REPORT.
1032 PM TSTM WND DMG HILBERT 44.13N 88.16W
08/27/2018 CALUMET WI LAW ENFORCEMENT
TREE DOWN ON ROAD. TIME ESTIMATED BY RADAR. DELAYED
REPORT.
1037 PM TSTM WND DMG CHILTON 44.03N 88.16W
08/27/2018 CALUMET WI LAW ENFORCEMENT
TREE BRANCHES AND POWERLINES DOWN. TIME ESTIMATED BY
RADAR. DELAYED REPORT.
&&
BERSCHLocal storm report, Aug 28, 12:28 AM CDT, 3 hours 40 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
1228 AM CDT TUE AUG 28 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1053 PM TSTM WND DMG KIEL 43.91N 88.03W
08/27/2018 MANITOWOC WI LAW ENFORCEMENT
TREE DOWN. TIME ESTIMATED BY RADAR. DELAYED REPORT.
1102 PM TSTM WND DMG MANITOWOC 44.08N 87.66W
08/27/2018 MANITOWOC WI LAW ENFORCEMENT
TREE DOWN. TIME ESTIMATED BY RADAR. DELAYED REPORT.
&&
BERSCHLocal storm report, Aug 28, 12:38 AM CDT, 3 hours 30 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
1238 AM CDT TUE AUG 28 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1015 PM TSTM WND DMG NEENAH 44.18N 88.44W
08/27/2018 WINNEBAGO WI LAW ENFORCEMENT
TREE DOWN ON POWERLINE. TIME ESTIMATED BY RADAR. DELAYED
REPORT.
&&
BERSCHLocal storm report, Aug 28, 1:03 AM CDT, 3 hours 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
103 AM CDT TUE AUG 28 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0913 PM TSTM WND DMG SCANDINAVIA 44.46N 89.13W
08/27/2018 WAUPACA WI LAW ENFORCEMENT
TREE DOWN. TIME ESTIMATED BY RADAR. DELAYED REPORT.
0929 PM TSTM WND DMG CLINTONVILLE 44.61N 88.75W
08/27/2018 WAUPACA WI LAW ENFORCEMENT
TWO TREES DOWN. TIME ESTIMATED BY RADAR. DELAYED REPORT.
0929 PM TSTM WND DMG WAUTOMA 44.06N 89.28W
08/27/2018 WAUSHARA WI LAW ENFORCEMENT
A FEW TREES DOWN IN THE COUNTY. TIME ESTIMATED BY RADAR.
DELAYED REPORT.
0938 PM TSTM WND DMG WAUPACA 44.34N 89.06W
08/27/2018 WAUPACA WI LAW ENFORCEMENT
TREE DOWN. TIME ESTIMATED BY RADAR. DELAYED REPORT.
0950 PM TSTM WND DMG FREMONT 44.26N 88.86W
08/27/2018 WAUPACA WI LAW ENFORCEMENT
TREE DOWN. TIME ESTIMATED BY RADAR. DELAYED REPORT.
&&
BERSCHLocal storm report, Aug 28, 1:20 AM CDT, 2 hours 48 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREEN BAY WI
120 AM CDT TUE AUG 28 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0818 PM TSTM WND DMG LITTLE CHICAGO 45.04N 89.84W
08/27/2018 MARATHON WI LAW ENFORCEMENT
TREE DOWN. TIME ESTIMATED BY RADAR. DELAYED REPORT.
0825 PM TSTM WND DMG MERRILL 45.18N 89.68W
08/27/2018 LINCOLN WI LAW ENFORCEMENT
MULTIPLE TREES AND POWERLINES DOWN. TIME ESTIMATED BY
RADAR. DELAYED REPORT.
0831 PM TSTM WND DMG WAUSAU 44.96N 89.63W
08/27/2018 MARATHON WI LAW ENFORCEMENT
TREE AND POWERLINE DOWN. TIME ESTIMATED BY RADAR. DELAYED
REPORT.
0844 PM TSTM WND DMG 1 S HARRISON 45.47N 89.50W
08/27/2018 LINCOLN WI LAW ENFORCEMENT
TREES AND POWERLINES DOWN. TIME ESTIMATED BY RADAR.
DELAYED REPORT.
0845 PM TSTM WND DMG JEFFRIS 45.50N 89.43W
08/27/2018 LINCOLN WI LAW ENFORCEMENT
MULTIPLE 12 INCH DIAMETER TREES ON PINE LAKE ROAD. TIME
ESTIMATED BY RADAR. DELAYED REPORT.
&&
BERSCHLocal storm report, Aug 28, 1:27 AM CDT, 2 hours 41 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE GREEN BAY WI
127 AM CDT TUE AUG 28 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0804 PM TSTM WND DMG MARSHFIELD 44.66N 90.16W
08/27/2018 WOOD WI PUBLIC
TREES DOWN IN THE CITY. PUBLIC REPORT FROM WAOW. DELAYED
REPORT.
0818 PM TSTM WND DMG LITTLE CHICAGO 45.04N 89.84W
08/27/2018 MARATHON WI LAW ENFORCEMENT
TREE DOWN. TIME ESTIMATED BY RADAR. DELAYED REPORT.
0825 PM TSTM WND DMG MERRILL 45.18N 89.68W
08/27/2018 LINCOLN WI LAW ENFORCEMENT
MULTIPLE TREES AND POWERLINES DOWN. TIME ESTIMATED BY
RADAR. DELAYED REPORT.
0831 PM TSTM WND DMG WAUSAU 44.96N 89.63W
08/27/2018 MARATHON WI LAW ENFORCEMENT
TREE AND POWERLINE DOWN. TIME ESTIMATED BY RADAR. DELAYED
REPORT.
0844 PM TSTM WND DMG 1 S HARRISON 45.47N 89.50W
08/27/2018 LINCOLN WI LAW ENFORCEMENT
TREES AND POWERLINES DOWN. TIME ESTIMATED BY RADAR.
DELAYED REPORT.
0845 PM TSTM WND DMG JEFFRIS 45.50N 89.43W
08/27/2018 LINCOLN WI LAW ENFORCEMENT
MULTIPLE 12 INCH DIAMETER TREES ON PINE LAKE ROAD. TIME
ESTIMATED BY RADAR. DELAYED REPORT.
0850 PM TSTM WND DMG ANTIGO 45.15N 89.15W
08/27/2018 LANGLADE WI LAW ENFORCEMENT
TREES DOWN. TIME ESTIMATED.
0901 PM TSTM WND GST S PLOVER 44.45N 89.53W
08/27/2018 M48.00 MPH PORTAGE WI TRAINED SPOTTER
REPORT OF 1.19 INCHES AS OF 940 PM, AS WELL.
0913 PM TSTM WND DMG SCANDINAVIA 44.46N 89.13W
08/27/2018 WAUPACA WI LAW ENFORCEMENT
TREE DOWN. TIME ESTIMATED BY RADAR. DELAYED REPORT.
0924 PM TSTM WND DMG 1 SE AMHERST 44.44N 89.27W
08/27/2018 PORTAGE WI LAW ENFORCEMENT
TREES ON POWER LINES
0929 PM TSTM WND DMG WAUTOMA 44.06N 89.28W
08/27/2018 WAUSHARA WI LAW ENFORCEMENT
A FEW TREES DOWN IN THE COUNTY. TIME ESTIMATED BY RADAR.
DELAYED REPORT.
0929 PM TSTM WND DMG CLINTONVILLE 44.61N 88.75W
08/27/2018 WAUPACA WI LAW ENFORCEMENT
TWO TREES DOWN. TIME ESTIMATED BY RADAR. DELAYED REPORT.
0934 PM TSTM WND GST WAUTOMA 44.06N 89.28W
08/27/2018 M48.00 MPH WAUSHARA WI AWOS
0938 PM TSTM WND DMG WAUPACA 44.34N 89.06W
08/27/2018 WAUPACA WI LAW ENFORCEMENT
TREE DOWN. TIME ESTIMATED BY RADAR. DELAYED REPORT.
0950 PM FUNNEL CLOUD FREMONT 44.26N 88.86W
08/27/2018 WAUPACA WI LAW ENFORCEMENT
TIME ESTIMATED
0950 PM TSTM WND DMG FREMONT 44.26N 88.86W
08/27/2018 WAUPACA WI LAW ENFORCEMENT
TREE DOWN. TIME ESTIMATED BY RADAR. DELAYED REPORT.
1010 PM TSTM WND GST APPLETON 44.26N 88.40W
08/27/2018 M51.00 MPH OUTAGAMIE WI AWOS
1015 PM TSTM WND DMG NEENAH 44.18N 88.44W
08/27/2018 WINNEBAGO WI LAW ENFORCEMENT
TREE DOWN ON POWERLINE. TIME ESTIMATED BY RADAR. DELAYED
REPORT.
1016 PM TSTM WND DMG 1 NW APPLETON 44.27N 88.42W
08/27/2018 OUTAGAMIE WI PUBLIC
REPORT OF A LARGE TREE BLOCKING A ROAD NEAR THE
INTERSECTION OF SUMMER STREET AND LOCUST STREET. TIME
ESTIMATED BY RADAR. REPORT VIA SOCIAL MEDIA.
1023 PM TSTM WND GST GREEN BAY 44.51N 88.00W
08/27/2018 M52.00 MPH BROWN WI ASOS
1025 PM TSTM WND DMG W GREEN BAY 44.51N 88.00W
08/27/2018 BROWN WI LAW ENFORCEMENT
NUMEROUS REPORTS OF TREES DOWN ON THE WEST SIDE OF GREEN
BAY.
1025 PM TSTM WND DMG GREEN BAY 44.51N 88.00W
08/27/2018 BROWN WI PUBLIC
REPORTS OF BRANCHES AND POWER LINES DOWN ACROSS GREEN
BAY.
1027 PM TSTM WND DMG HARRISON 44.13N 88.29W
08/27/2018 CALUMET WI LAW ENFORCEMENT
TREE DOWN. TIME ESTIMATED BY RADAR. DELAYED REPORT.
1030 PM TSTM WND GST OSHKOSH 44.01N 88.55W
08/27/2018 M55.00 MPH WINNEBAGO WI ASOS
TIME ESTIMATED BETWEEN 1025 AND 1030 PM.
1032 PM TSTM WND DMG HILBERT 44.13N 88.16W
08/27/2018 CALUMET WI LAW ENFORCEMENT
TREE DOWN ON ROAD. TIME ESTIMATED BY RADAR. DELAYED
REPORT.
1037 PM TSTM WND DMG CHILTON 44.03N 88.16W
08/27/2018 CALUMET WI LAW ENFORCEMENT
TREE BRANCHES AND POWERLINES DOWN. TIME ESTIMATED BY
RADAR. DELAYED REPORT.
1040 PM TSTM WND DMG BRUSSELS 44.73N 87.63W
08/27/2018 DOOR WI LAW ENFORCEMENT
TREES AND POWERLINES DOWN. TIME ESTIMATED BY RADAR.
DELAYED REPORT.
1049 PM TSTM WND DMG STURGEON BAY 44.83N 87.38W
08/27/2018 DOOR WI LAW ENFORCEMENT
TREES AND POWERLINES DOWN. TIME ESTIMATED BY RADAR.
DELAYED REPORT.
1050 PM TSTM WND GST STURGEON BAY 44.83N 87.38W
08/27/2018 M41.00 MPH DOOR WI AWOS
1053 PM TSTM WND DMG KIEL 43.91N 88.03W
08/27/2018 MANITOWOC WI LAW ENFORCEMENT
TREE DOWN. TIME ESTIMATED BY RADAR. DELAYED REPORT.
1053 PM TSTM WND DMG KEWAUNEE 44.46N 87.50W
08/27/2018 KEWAUNEE WI LAW ENFORCEMENT
TREE DOWN IN THE CITY
1054 PM TSTM WND DMG ALGOMA 44.61N 87.43W
08/27/2018 KEWAUNEE WI LAW ENFORCEMENT
TREE BRANCH ON POWERLINE
1054 PM TSTM WND GST WASHINGTON ISLAND 45.38N 86.90W
08/27/2018 M62.00 MPH DOOR WI CO-OP OBSERVER
1056 PM TSTM WND DMG JACKSONPORT 44.98N 87.18W
08/27/2018 DOOR WI LAW ENFORCEMENT
TREES AND POWERLINES DOWN. TIME ESTIMATED BY RADAR.
DELAYED REPORT.
1100 PM TSTM WND GST MANITOWOC 44.08N 87.66W
08/27/2018 M48.00 MPH MANITOWOC WI AWOS
1102 PM TSTM WND DMG MANITOWOC 44.08N 87.66W
08/27/2018 MANITOWOC WI LAW ENFORCEMENT
TREE DOWN. TIME ESTIMATED BY RADAR. DELAYED REPORT.
1110 PM TSTM WND DMG KIEL 43.91N 88.03W
08/27/2018 MANITOWOC WI EMERGENCY MNGR
REPORT OF A TREE DOWN ON POWER LINES.
1110 PM TSTM WND DMG MANITOWOC 44.08N 87.66W
08/27/2018 MANITOWOC WI EMERGENCY MNGR
MULTIPLE REPORTS OF TREES DOWN IN MANITOWOC.
1120 PM MARINE TSTM WIND 19 ESE ROCK ISLAND STAT 45.31N 86.46W
08/27/2018 M56.00 MPH LMZ563 WI BUOY
1127 PM FLOOD OSHKOSH 44.01N 88.55W
08/27/2018 WINNEBAGO WI PUBLIC
2 TO 4 INCHES OF STANDING WATER OVER HIGH AVE JUST SOUTH
OF NEW YORK AVE FOR A BLOCK IN OSHKOSH. REPORT VIA SOCIAL
MEDIA.
&&
BERSCHThe office that day
Everything else NWS Green Bay, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 7:28 PM CDT | Special Weather Statement | GRB | Marathon | 62 min |
| Aug 27, 7:48 PM CDT | Severe Thunderstorm Warning | GRB | Marathon, Wood | 57 min |
| Aug 27, 8:12 PM CDT | Special Weather Statement | GRB | Lincoln | 33 min |
| Aug 27, 8:30 PM CDT | Severe Thunderstorm Warning | GRB | Langlade, Lincoln, Marathon | 44 min |
| Aug 27, 8:44 PM CDT | Severe Thunderstorm Warning | GRB | Portage, Wood | 48 min |
| Aug 27, 9:03 PM CDT | Special Weather Statement | GRB | Forest | 42 min |
| Aug 27, 9:08 PM CDT | Severe Thunderstorm Warning | GRB | Portage, Waupaca, Waushara | 37 min |
| Aug 27, 9:28 PM CDT | Severe Thunderstorm Warning | GRB | Outagamie, Portage, Shawano, Waupaca | 47 min |
| Aug 27, 9:40 PM CDT | Tornado Warning | GRB | Waupaca, Waushara, Winnebago | 35 min |
| Aug 27, 9:43 PM CDT | Special Marine Warning | GRB | 62 min | |
| Aug 27, 9:48 PM CDT | Severe Thunderstorm Warning | GRB | Oconto, Shawano | 42 min |
| Aug 27, 9:59 PM CDT | Severe Thunderstorm Warning | GRB | Calumet, Outagamie, Waupaca, Winnebago | 38 min |
| Aug 27, 10:18 PM CDT | Special Weather Statement | GRB | Brown | 42 min |
| Aug 27, 10:28 PM CDT | Special Marine Warning | GRB | 92 min | |
| Aug 27, 10:29 PM CDT | Special Weather Statement | GRB | Door | 61 min |
| Aug 27, 10:32 PM CDT | Severe Thunderstorm Warning | GRB | Brown, Calumet, Kewaunee, Manitowoc | 43 min |
| Aug 27, 10:39 PM CDT | Special Marine Warning | GRB | 71 min | |
| Aug 27, 10:41 PM CDT | Severe Thunderstorm Warning | GRB | Door | 36 min |
| Aug 27, 11:09 PM CDT | Areal Flood Advisory | GRB | Calumet, Manitowoc, Winnebago | 6 hr |
| Aug 28, 2:45 AM CDT | Areal Flood Advisory | GRB | Waushara | 3 hr |
| Aug 28, 1:37 PM CDT | Special Weather Statement | GRB | Portage, Waupaca, Waushara, Wood | 53 min |
| Aug 28, 2:03 PM CDT | Special Weather Statement | GRB | Waupaca, Waushara, Winnebago | 42 min |
| Aug 28, 2:20 PM CDT | Special Weather Statement | GRB | Outagamie | 40 min |
| Aug 28, 2:35 PM CDT | Severe Thunderstorm Warning | GRB | Brown, Outagamie | 29 min |
| Aug 28, 2:36 PM CDT | Severe Thunderstorm Warning | GRB | Waushara | 39 min |
| Aug 28, 3:08 PM CDT | Areal Flood Advisory | GRB | Brown, Outagamie, Waupaca, Waushara, Winnebago | 3 hr |
| Aug 28, 3:24 PM CDT | Severe Thunderstorm Warning | GRB | Waushara, Winnebago | 51 min |
| Aug 28, 3:33 PM CDT | Special Weather Statement | GRB | Kewaunee | 27 min |
| Aug 28, 3:50 PM CDT | Areal Flood Advisory | GRB | Brown, Calumet, Door, Kewaunee, Manitowoc, Winnebago | 3 hr |
| Aug 28, 4:03 PM CDT | Severe Thunderstorm Warning | GRB | Brown, Calumet, Manitowoc, Winnebago | 42 min |
| Aug 28, 4:08 PM CDT | Special Marine Warning | GRB | 112 min | |
| Aug 28, 4:27 PM CDT | Tornado Warning | GRB | Calumet, Manitowoc | 18 min |
| Aug 28, 4:38 PM CDT | Tornado Warning | GRB | Manitowoc | 20 min |
| Aug 28, 4:53 PM CDT | Flash Flood Warning | GRB | Calumet, Outagamie, Winnebago | 3 hr |
| Aug 28, 5:55 PM CDT | Areal Flood Advisory | GRB | Brown, Outagamie, Waushara, Winnebago | 3 hr |
| Aug 28, 6:42 PM CDT | Areal Flood Advisory | GRB | Calumet | 2 hr |
Nearby
Flash Flood Watches in Wisconsin, 2018Every flash flood watch in 2018
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.