Alert archive / Wisconsin / Flash Flood Warnings in 2018
Flash Flood Warning 2, NWS La Crosse, WI
NWS La Crosse, WI issued this flash flood warning at Jun 9, 2018, 4:21 AM CDT for Grant County, Wisconsin. It was in force for 3 hr. 2 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
- Jun 9, 2018, 4:21 AM CDT (09:21 UTC)
- Expired
- Jun 9, 2018, 7:15 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), 115 km from the middle of the area, began a volume at 09:22 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 9, 5:00 AM CDT | FLASH FLOOD | 2 Se Bagley, WI | MUDSLIDE COVERING 75 TO 100 FT OF COUNTY ROAD A SOUTH OF BAGLEY NEAR SANDY ROAD. TIME ESTIMATED. |
| Jun 9, 5:45 AM CDT | FLASH FLOOD | 2 Ssw Beetown, WI | DEBRIS AND WATER ON/OVER RATTLESNAKE AND GLASSMAKER ROADS SOUTH AND SOUTHWEST OF BEETOWN. |
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, 9.4 hours before the alert went out and 136 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
- 606 J/kg
- Mixed-layer CIN
- -102 J/kg
- Mixed-layer LCL
- 1081 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 102 m²/s²
- 0-3 km storm-relative helicity
- 164 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 4.3
The text
As transmitted.
543
WGUS53 KARX 090921
FFWARX
WIC043-091215-
/O.NEW.KARX.FF.W.0002.180609T0921Z-180609T1215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service La Crosse WI
421 AM CDT SAT JUN 9 2018
The National Weather Service in La Crosse has issued a
* Flash Flood Warning for...
Southwestern Grant County in southwestern Wisconsin...
* Until 715 AM CDT
* At 420 AM CDT, Doppler radar indicated heavy rain across portions
of the warned area. Radar estimates indicate 3 to locally 6 inches
of rain fall in the Beetown to North Andover to east of Bagley.
Flash flooding has not been reported yet, but much of this rain
fell on Rattlesnake Creek. Be on alert for flash flooding and
water over roads in the Bagley to North Andover to Beetown areas.
* Some locations that will experience flooding include...Beetown,
Potosi, Glen Haven, Bagley, Big H Campground, Wyalusing State
Park, Burton, North Andover and Brodtville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Please report flooding to your local law enforcement agency when you
can do so safely.
&&
LAT...LON 4267 9088 4283 9107 4296 9114 4298 9112
4298 9104 4277 9077 4269 9071 4266 9082
$$
RRS2 follow-up statements
135
WGUS73 KARX 091040
FFSARX
Flash Flood Statement
National Weather Service La Crosse WI
540 AM CDT SAT JUN 9 2018
WIC043-091215-
/O.CON.KARX.FF.W.0002.000000T0000Z-180609T1215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Grant WI-
540 AM CDT SAT JUN 9 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 AM CDT FOR
SOUTHWESTERN GRANT COUNTY...
At 530 AM CDT, local law enforcement reported a mudslide covering 75
to 100 ft of county road A south of Bagley. Additional areas where
heavy rains fell overnight include North Andover to Beetown, and
much of the Rattlesnake Creek drainage area. Be alert for water over
roads and washouts in these areas.
Some locations that will experience flooding include...Beetown,
Potosi, Glen Haven, Bagley, Big H Campground, Wyalusing State Park,
Burton, North Andover and Brodtville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Please report flooding to your local law enforcement agency when you
can do so safely.
&&
LAT...LON 4267 9088 4283 9107 4296 9114 4298 9112
4298 9104 4277 9077 4269 9071 4266 9082
$$
RRS368
WGUS73 KARX 091142
FFSARX
Flash Flood Statement
National Weather Service La Crosse WI
642 AM CDT SAT JUN 9 2018
WIC043-091215-
/O.CON.KARX.FF.W.0002.000000T0000Z-180609T1215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Grant WI-
642 AM CDT SAT JUN 9 2018
...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 AM CDT FOR
SOUTHWESTERN GRANT COUNTY...
At 635 AM CDT, local law enforcement reported water and debris over
roads south of Beetown near where Rattlesnake Creek flows into
the Grant River.
Some locations that will experience flooding include...
Beetown, Glen Haven, Bagley, Big H Campground, Burton, North Andover
and Brodtville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Please report flooding to your local law enforcement agency when you
can do so safely.
&&
LAT...LON 4267 9088 4283 9107 4296 9114 4298 9112
4298 9104 4277 9077 4269 9071 4266 9082
$$
RRSThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 1:49 AM CDT | Flash Flood Warning | ARX | Grant | 3 hr |
| Jun 9, 7:09 AM CDT | Areal Flood Warning | ARX | Grant | 3 hr |
| Jun 9, 11:04 AM CDT | Flash Flood Watch | ARX | Crawford, Grant | 14 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.