Alert archive / Wisconsin / Flash Flood Warnings in 2018
Flash Flood Warning 1, NWS Green Bay, WI
NWS Green Bay, WI issued this flash flood warning at Aug 28, 2018, 4:53 PM CDT for Calumet County, Outagamie County, Winnebago County, Wisconsin. It was in force for 3 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Aug 28, 2018, 4:53 PM CDT (21:53 UTC)
- Expired
- Aug 28, 2018, 7:45 PM CDT
- In force
- 3 hr
- Issued by
- NWS Green Bay, WI
- Area
- Storm-based polygon
- Flood severity
- None
Counties Calumet County, WI, Outagamie County, WI, Winnebago County, WI
The radar
The Green Bay radar (KGRB), 40 km from the middle of the area, began a volume at 21:53 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 28, 5:42 PM CDT | HEAVY RAIN 2.55 | 1 W Kaukauna, WI | MAJOR STREET FLOODING. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.9 hours before the alert went out and 39 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
- 41 J/kg
- Mixed-layer CIN
- -407 J/kg
- Mixed-layer LCL
- 1253 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 138 m²/s²
- 0-3 km storm-relative helicity
- 152 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
483 WGUS53 KGRB 282153 FFWGRB WIC015-087-139-290045- /O.NEW.KGRB.FF.W.0001.180828T2153Z-180829T0045Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Green Bay WI 453 PM CDT TUE AUG 28 2018 The National Weather Service in Green Bay has issued a * Flash Flood Warning for... Northwestern Calumet County in east central Wisconsin... Northeastern Winnebago County in east central Wisconsin... Southeastern Outagamie County in northeastern Wisconsin... * Until 745 PM CDT. * At 452 PM CDT, local law enforcement reported heavy rain across the warned area. Up to two inches of rain have already fallen. Flash flooding is already occurring. * Some locations that will experience flooding include... Appleton, Menasha, Kaukauna, Little Chute, Kimberly, Darboy, Northern Lake Winnebago, Neenah, Combined Locks and Mackville. Additional rainfall amounts up to 1 inch are possible in the warned area. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. A Flash Flood Warning means that flooding is imminent or occurring. If you are in the warned area move to higher ground immediately. Residents living along streams and creeks should take immediate precautions to protect life and property. && LAT...LON 4427 8821 4407 8860 4413 8870 4435 8842 $$ MPC
3 follow-up statements
994 WGUS73 KGRB 282230 FFSGRB Flash Flood Statement National Weather Service Green Bay WI 530 PM CDT TUE AUG 28 2018 WIC015-087-139-290045- /O.CON.KGRB.FF.W.0001.000000T0000Z-180829T0045Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Calumet WI-Winnebago WI-Outagamie WI- 530 PM CDT TUE AUG 28 2018 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR NORTHWESTERN CALUMET...NORTHEASTERN WINNEBAGO AND SOUTHEASTERN OUTAGAMIE COUNTIES... At 529 PM CDT, local law enforcement reported flash flooding across the warned area. Up to two inches of rain has already fallen. Flash flooding is already occurring. Some locations that will experience flooding include... Appleton, Menasha, Kaukauna, Little Chute, Kimberly, Darboy, Northern Lake Winnebago, Neenah, Combined Locks and Mackville. Additional rainfall amounts of less than an inch are possible in the warned area. Although the heaviest rain has ended, Flash Flooding continues across the warned area. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. A Flash Flood Warning means that flooding is imminent or occurring. If you are in the warned area move to higher ground immediately. Residents living along streams and creeks should take immediate precautions to protect life and property. && LAT...LON 4427 8821 4407 8860 4413 8870 4435 8842 $$ Kurimski
918 WGUS73 KGRB 282348 FFSGRB Flash Flood Statement National Weather Service Green Bay WI 648 PM CDT TUE AUG 28 2018 WIC015-087-139-290045- /O.CON.KGRB.FF.W.0001.000000T0000Z-180829T0045Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Calumet WI-Winnebago WI-Outagamie WI- 648 PM CDT TUE AUG 28 2018 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR NORTHWESTERN CALUMET...NORTHEASTERN WINNEBAGO AND SOUTHEASTERN OUTAGAMIE COUNTIES... At 647 PM CDT, local law enforcement reported flash flooding across the warned area. Up to two inches of rain has already fallen with Flash flooding already occurring. Some locations that will experience flooding include... Appleton, Menasha, Kaukauna, Little Chute, Kimberly, Darboy, Northern Lake Winnebago, Neenah, Combined Locks and Mackville. Additional rainfall amounts of less than an inch are possible in the warned area. Although the heaviest rain has ended, Flash Flooding will continue across the warned area. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. A Flash Flood Warning means that flooding is imminent or occurring. If you are in the warned area move to higher ground immediately. Residents living along streams and creeks should take immediate precautions to protect life and property. && LAT...LON 4427 8821 4407 8860 4413 8870 4435 8842 $$ Kurimski
735 WGUS73 KGRB 290045 FFSGRB Flash Flood Statement National Weather Service Green Bay WI 745 PM CDT TUE AUG 28 2018 WIC015-087-139-290054- /O.EXP.KGRB.FF.W.0001.000000T0000Z-180829T0045Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Calumet WI-Winnebago WI-Outagamie WI- 745 PM CDT TUE AUG 28 2018 ...THE FLASH FLOOD WARNING FOR NORTHWESTERN CALUMET...NORTHEASTERN WINNEBAGO AND SOUTHEASTERN OUTAGAMIE COUNTIES WILL EXPIRE AT 745 PM CDT... Flood waters are receding and Flash Flooding is no longer expected to pose a threat. However an urban and small stream Flood Advisory remains in effect for the area until 900 PM CDT. Please continue to heed any remaining road closures. LAT...LON 4427 8821 4407 8860 4413 8870 4435 8842 $$ Kurimski
The 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, 4:08 AM CDT | Flash Flood Watch | GRB | Brown, Kewaunee, Outagamie | 17 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, 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 Warnings in Wisconsin, 2018Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.