Alert archive / Wisconsin / Flash Flood Warnings in 2018
Flash Flood Warning 6, NWS La Crosse, WI
NWS La Crosse, WI issued this flash flood warning at Jun 9, 2018, 11:18 PM CDT for Grant 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
- Jun 9, 2018, 11:18 PM CDT (04:18 UTC)
- Expired
- Jun 10, 2018, 2:15 AM CDT
- In force
- 3 hr
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Flood severity
- None
County Grant County, WI
The radar
The La Crosse radar (KARX), 104 km from the middle of the area, began a volume at 04:20 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 |
|---|---|---|---|
| Jun 10, 12:55 AM CDT | FLASH FLOOD | 2 Wsw Stitzer, WI | WATER OVER HIGHWAY 61 BETWEEN LANCASTER AND FENNIMORE. HIGHWAY 61 BEING CLOSED. WATER IN BASEMENT OF NEARBY HOME. |
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, 4.3 hours before the alert went out and 148 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
- 1247 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 1107 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 142 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.7
The text
As transmitted.
048
WGUS53 KARX 100418
FFWARX
WIC043-100715-
/O.NEW.KARX.FF.W.0006.180610T0418Z-180610T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service La Crosse WI
1118 PM CDT SAT JUN 9 2018
The National Weather Service in La Crosse has issued a
* Flash Flood Warning for...
Central Grant County in southwestern Wisconsin...
* Until 215 AM CDT
* At 1117 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Flash flooding is expected to
begin shortly.
* Some locations that will experience flooding include...
Lancaster, Fennimore, Bloomington, Preston, Beetown, Montfort,
Livingston, Bagley, Mount Hope, Patch Grove, and Millville.
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 4274 9105 4283 9108 4283 9110 4288 9110
4291 9114 4299 9115 4300 9110 4299 9106
4304 9096 4316 9043 4288 9043 4273 9102
$$
Rieck2 follow-up statements
240
WGUS73 KARX 100557
FFSARX
Flash Flood Statement
National Weather Service La Crosse WI
1257 AM CDT SUN JUN 10 2018
WIC043-100715-
/O.CON.KARX.FF.W.0006.000000T0000Z-180610T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Grant WI-
1257 AM CDT SUN JUN 10 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 215 AM CDT FOR
CENTRAL GRANT COUNTY...
At 1254 AM CDT, local law enforcement reported water over highway 61
between Lancaster and Fennimore and the road was being closed. Also
some reports of water in basements.
Moderate to heavy rainfall will persist for the next hour with an
additional 1/2 to 1 inch possible.
Some locations that will experience flooding include...
Lancaster, Fennimore, Bloomington, Preston, Beetown, Montfort,
Livingston, Mount Ida, Glen Haven, and Millville,
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4274 9105 4283 9108 4283 9110 4288 9110
4291 9114 4299 9115 4300 9110 4299 9106
4304 9096 4316 9043 4288 9043 4273 9102
$$
Rieck182
WGUS73 KARX 100710
FFSARX
Flash Flood Statement
National Weather Service La Crosse WI
210 AM CDT SUN JUN 10 2018
WIC043-100716-
/O.EXP.KARX.FF.W.0006.000000T0000Z-180610T0715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Grant WI-
210 AM CDT SUN JUN 10 2018
...THE FLASH FLOOD WARNING FOR CENTRAL GRANT COUNTY WILL EXPIRE AT
215 AM CDT...
The threat of additional heavy rain and flash flooding has ended.
Light to moderate rain continued over portions of the warning area,
but this will gradually diminish through 3 am as well.
Water remained over a few roads in northern Grant county with roads
being barricaded. Please continue to heed any remaining road
closures.
LAT...LON 4274 9105 4283 9108 4283 9110 4288 9110
4291 9114 4299 9115 4300 9110 4299 9106
4304 9096 4316 9043 4288 9043 4273 9102
$$
RRSThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 10:39 AM CDT | Areal Flood Warning | ARX | Grant | 6 hr |
| Jun 10, 3:54 PM CDT | Areal Flood Warning | ARX | Grant | 4 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.