Alert archive / Wisconsin / Flash Flood Warnings in 2018
Flash Flood Warning 17, NWS La Crosse, WI
NWS La Crosse, WI issued this flash flood warning at Aug 28, 2018, 3:38 AM CDT for La Crosse County, Monroe County, Vernon County, Wisconsin; Houston County, Minnesota. It was in force for 4 hr. 15 reports 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, 3:38 AM CDT (08:38 UTC)
- Expired
- Aug 28, 2018, 7:30 AM CDT
- In force
- 4 hr
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Flood severity
- None
Counties Houston County, MN, La Crosse County, WI, Monroe County, WI, Vernon County, WI
The radar
The La Crosse radar (KARX), 28 km from the middle of the area, began a volume at 08:38 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, 3:48 AM CDT | FLASH FLOOD | 1 N Rockton, WI | 2 PEOPLE RESCUED IN WATER UP TO THEIR NECKS WHO WERE CAMPING NEAR THE KICKAPOO RIVER ON A CANOE TRIP |
| Aug 28, 4:21 AM CDT | FLASH FLOOD | 6 Sse La Crosse, WI | ROAD CLOSURES NEAR GOOSE ISLAND COUNTY PARK AND WISCONSIN HIGHWAY 35 NEAR VERNON COUNTY LINE |
| Aug 28, 4:21 AM CDT | FLASH FLOOD | 8 Se La Crosse, WI | CHEST HIGH WATER REPORTED. RESCUES BEING PERFORMED IN BROOKVIEW MOBILE HOME PARK. |
| Aug 28, 5:47 AM CDT | FLASH FLOOD | 4 S Ontario, WI | WISCONSIN HIGHWAY 131 CLOSED DUE TO HIGH WATER BETWEEN ONTARIO AND ROCKTON |
| Aug 28, 6:00 AM CDT | HEAVY RAIN 4.09 | Genoa Dam 8, WI | CO-OP OBSERVER STATION GENW3, GENOA DAM 8. |
| Aug 28, 6:50 AM CDT | FLASH FLOOD | Coon Valley, WI | HIGHWAYS 14 AND 162 CLOSED NEAR TOWN DUE TO FLOODING |
| Aug 28, 7:00 AM CDT | HEAVY RAIN 4.29 | Viroqua 0.8 Ese, WI | COCORAHS STATION WI-VR-2, VIROQUA 0.8 ESE. |
| Aug 28, 7:00 AM CDT | HEAVY RAIN 6.64 | Hillsboro 2sw, WI | CO-OP OBSERVER STATION HLBW3, HILLSBORO 2SW. |
| Aug 28, 7:00 AM CDT | HEAVY RAIN 7 | Hillsboro Wsw, WI | CO-OP OBSERVER STATION HBOW3, HILLSBORO WSW. |
| Aug 28, 7:00 AM CDT | HEAVY RAIN 7.42 | Stoddard, WI | CO-OP OBSERVER STATION STDW3, STODDARD. |
| Aug 28, 7:00 AM CDT | HEAVY RAIN 8.58 | 3 Wnw Kendall, WI | COCORAHS STATION WI-MN-4, 3 WNW KENDALL. |
| Aug 28, 7:00 AM CDT | HEAVY RAIN 8.66 | Melvina, WI | COCORAHS STATION WI-MN-5, MELVINA. |
| Aug 28, 7:00 AM CDT | HEAVY RAIN 9.98 | Westby 3ene, WI | CO-OP OBSERVER STATION WESW3, WESTBY 3ENE. |
| Aug 28, 7:29 AM CDT | HEAVY RAIN 7.75 | 2 Ne Genoa, WI | |
| Aug 28, 7:33 AM CDT | FLASH FLOOD | Avalanche, WI | HIGH WATER ALONG WEST FORK OF KICKAPOO RIVER ALONG COUNTY ROAD S |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 8.6 hours before the alert went out and 228 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
- 1833 J/kg
- Mixed-layer CIN
- -78 J/kg
- Mixed-layer LCL
- 1443 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 192 m²/s²
- 0-3 km storm-relative helicity
- 302 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 15.7
The text
As transmitted.
090
WGUS53 KARX 280838
FFWARX
MNC055-WIC063-081-123-281230-
/O.NEW.KARX.FF.W.0017.180828T0838Z-180828T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service La Crosse WI
338 AM CDT TUE AUG 28 2018
The National Weather Service in La Crosse has issued a
* Flash Flood Warning for...
Houston County in southeastern Minnesota...
Southeastern La Crosse County in west central Wisconsin...
Vernon County in southwestern Wisconsin...
Southern Monroe County in west central Wisconsin...
* Until 730 AM CDT.
* At 331 AM CDT, radar was indicating the heaviest rain has shifted
east out of the area. However, there was still scattered showers
and storms ongoing across the warned area. Law enforcement
reported numerous roads washed out and roads with water over
them, along with a few rock and mudslides.
* Some locations that will experience flooding include...
Viroqua, Caledonia, Westby, Hillsboro, Spring Grove, Cashton,
Houston, Stoddard, Coon Valley, La Farge, Hokah, New Albin,
Brownsville, Glendale, Springville, Portland, Norwalk, Ontario and
Wilton.
Excessive rainfall over the warned area will cause mud slides near
steep terrain. The mud slide can consist of rock, mud, vegetation
and other loose materials.
Additional rainfall amounts of 1 to 2 inches are possible in the
warned area, mainly across southern Monroe and eastern Vernon
counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4355 9067 4353 9067 4349 9118 4350 9173
4375 9173 4380 9115 4385 9091 4392 9031
4356 9031
$$
DAS2 follow-up statements
839
WGUS73 KARX 281001
FFSARX
Flash Flood Statement
National Weather Service La Crosse WI
501 AM CDT TUE AUG 28 2018
MNC055-WIC063-081-123-281230-
/O.CON.KARX.FF.W.0017.000000T0000Z-180828T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Houston MN-La Crosse WI-Vernon WI-Monroe WI-
501 AM CDT TUE AUG 28 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 AM CDT FOR
HOUSTON...SOUTHEASTERN LA CROSSE...VERNON AND SOUTHERN MONROE
COUNTIES...
At 452 AM CDT, local law enforcement in the warned area reported
many roads washed out and roads with water and mud over them. Severe
flooding continues along the Coon Creek and in Coon Valley. Expect
this to continue through this morning.
Excessive rainfall that fell over the warned area will cause mud
slides near steep terrain. The mud slide can consist of rock, mud,
vegetation and other loose materials.
Some locations that will experience flooding include...
Coon Valley, Oil City, Wilton, Viroqua, Caledonia, Westby,
Hillsboro, Spring Grove, Cashton, Houston, Stoddard, La Farge,
Hokah, New Albin, Brownsville, Glendale, Springville, Portland,
Norwalk, and Ontario.
Rainfall has pretty much ended across the area with the exceptions
of a few thunderstorms lingering across southern Monroe county.
Up to another inch of rain can be expected across that area.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4355 9067 4353 9067 4349 9118 4350 9173
4375 9173 4380 9115 4385 9091 4392 9031
4356 9031
$$
DAS124
WGUS73 KARX 281151
FFSARX
Flash Flood Statement
National Weather Service La Crosse WI
651 AM CDT TUE AUG 28 2018
MNC055-WIC063-081-123-281230-
/O.CON.KARX.FF.W.0017.000000T0000Z-180828T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Houston MN-La Crosse WI-Vernon WI-Monroe WI-
651 AM CDT TUE AUG 28 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 730 AM CDT FOR
HOUSTON...SOUTHEASTERN LA CROSSE...VERNON AND SOUTHERN MONROE
COUNTIES...
At 645 AM CDT, Law enforcement reported water and debris over
numerous roads along with numerous closures.
Excessive rainfall that fell over the warned area may cause
additional mud slides near steep terrain. These slides can consist
of rock, mud, vegetation and other loose materials.
Some locations that will experience flooding include...
Coon Valley, Viroqua, Caledonia, Westby, Hillsboro, Spring Grove,
Cashton, Houston, Stoddard, La Farge, Hokah, New Albin, Brownsville,
Glendale, Springville, Portland, Norwalk, Ontario and Wilton.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 4355 9067 4353 9067 4349 9118 4350 9173
4375 9173 4380 9115 4385 9091 4392 9031
4356 9031
$$
DASThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 27, 7:02 PM CDT | Special Weather Statement | ARX | Clark, Jackson, Taylor | 58 min |
| Aug 27, 7:57 PM CDT | Areal Flood Advisory | ARX | La Crosse | 2 hr |
| Aug 27, 8:30 PM CDT | Tornado Warning | ARX | Juneau, Monroe | 30 min |
| Aug 27, 8:34 PM CDT | Special Weather Statement | ARX | Adams, Juneau, Monroe | 56 min |
| Aug 27, 8:57 PM CDT | Severe Thunderstorm Warning | ARX | Adams, Juneau | 33 min |
| Aug 27, 9:54 PM CDT | Areal Flood Advisory | ARX | La Crosse | 111 min |
| Aug 27, 10:07 PM CDT | Flash Flood Warning | ARX | Vernon | 3 hr |
| Aug 27, 10:26 PM CDT | Flash Flood Warning | ARX | La Crosse, Monroe | 3 hr |
| Aug 27, 11:32 PM CDT | Flash Flood Warning | ARX | Vernon | 3 hr |
| Aug 27, 11:51 PM CDT | River Flood Warning | ARX | Monroe, Vernon | 58 hr |
| Aug 28, 12:07 AM CDT | Flash Flood Warning | ARX | Adams, Juneau | 3 hr |
| Aug 28, 12:57 AM CDT | Flash Flood Warning | ARX | Monroe, Vernon | 3 hr |
| Aug 28, 1:36 AM CDT | Flash Flood Warning | ARX | La Crosse | 114 min |
| Aug 28, 1:51 AM CDT | Flash Flood Warning | ARX | La Crosse, Monroe, Vernon | 3 hr |
| Aug 28, 2:54 AM CDT | Flash Flood Warning | ARX | Adams, Juneau | 3 hr |
| Aug 28, 3:05 AM CDT | River Flood Warning | ARX | Richland, Vernon | 55 hr |
| Aug 28, 3:05 AM CDT | River Flood Warning | ARX | Richland, Vernon | 7 days |
| Aug 28, 3:05 AM CDT | River Flood Warning | ARX | Vernon | 5 days |
| Aug 28, 3:05 AM CDT | River Flood Warning | ARX | Crawford | 5 days |
| Aug 28, 3:05 AM CDT | River Flood Warning | ARX | Crawford | 14 days |
| Aug 28, 3:05 AM CDT | River Flood Warning | ARX | Crawford | 14 days |
| Aug 28, 5:43 AM CDT | Flash Flood Warning | ARX | Adams, Juneau | 3 hr |
| Aug 28, 7:33 AM CDT | Areal Flood Warning | ARX | La Crosse, Monroe, Vernon | 5 hr |
| Aug 28, 8:59 AM CDT | Areal Flood Warning | ARX | Adams, Juneau | 5 hr |
| Aug 28, 12:32 PM CDT | Areal Flood Warning | ARX | La Crosse, Monroe, Vernon | 6 hr |
| Aug 28, 1:30 PM CDT | Special Weather Statement | ARX | Juneau, Monroe | 60 min |
| Aug 28, 1:48 PM CDT | Areal Flood Warning | ARX | Adams, Juneau | 33 hr |
| Aug 28, 1:54 PM CDT | Severe Thunderstorm Warning | ARX | Juneau, Monroe, Vernon | 51 min |
| Aug 28, 2:27 PM CDT | Severe Thunderstorm Warning | ARX | Adams | 48 min |
| Aug 28, 2:32 PM CDT | Tornado Warning | ARX | Adams, Juneau | 28 min |
| Aug 28, 2:45 PM CDT | Tornado Warning | ARX | Adams | 17 min |
| Aug 28, 3:07 PM CDT | Flash Flood Warning | ARX | Adams, Crawford, Juneau, Monroe, Richland, Vernon | 6 hr |
| Aug 28, 6:41 PM CDT | Areal Flood Warning | ARX | La Crosse, Monroe, Vernon | 12 hr |
Nearby
Flash Flood Warnings in Wisconsin, 2018Flash Flood Warnings in Minnesota, 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.