Alert archive / Wisconsin / Flash Flood Warnings in 2007
Flash Flood Warning 9, NWS La Crosse, WI
NWS La Crosse, WI issued this flash flood warning at Aug 18, 2007, 9:42 PM CDT for Richland County, Wisconsin. It was in force for 3 hr. 4 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Aug 18, 2007, 9:42 PM CDT (02:42 UTC)
- Expired
- Aug 19, 2007, 12:45 AM CDT
- In force
- 3 hr
- Issued by
- NWS La Crosse, WI
- Area
- Whole counties
County Richland County, WI
The radar
The La Crosse radar (KARX), 79 km from the middle of the area, began a volume at 02:46 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 18, 11:16 PM CDT | FLASH FLOOD | 1 E Viola, WI | WATER OVER HIGHWAY 56. |
| Aug 18, 11:16 PM CDT | FLASH FLOOD | 1 S Loyd, WI | WATER OVER HIGHWAY 58. |
| Aug 18, 11:16 PM CDT | FLASH FLOOD | 1 S Yuba, WI | WATER OVER COUNTY HIGHWAY C. |
| Aug 18, 11:41 PM CDT | FLASH FLOOD | Richland Center, WI | NUMEROUS STATE HIGHWAYS AND COUNTY ROADS CLOSED AND IMPASSABLE. ESTIMATED 75 PERCENT OF THE COUNTY ROADS ARE AFFECTED BY FLOOD WATERS. HWY 80 IMPASSABLE WITH BRIDGES BUCKLED. AT LEAST A DOZEN BOAT RESCUES FROM HOMES AND CARS. THE TOWN OF ROCKBRIDGE BASICALLY U |
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, 2.7 hours before the alert went out and 195 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 936 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 256 m²/s²
- 0-3 km storm-relative helicity
- 272 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
WGUS53 KARX 190244
FFWARX
WIC103-190545-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LA CROSSE WI
942 PM CDT SAT AUG 18 2007
THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
RICHLAND COUNTY IN SOUTHWEST WISCONSIN
* UNTIL 1245 AM CDT
* AT 942 PM CDT...NATIONAL WEATHER SERVICE RADAR DETECTED
THUNDERSTORMS PRODUCING VERY HEAVY RAIN ACROSS MUCH OF THE WARNED
AREA. ESTIMATES FROM RADAR INDICATED THAT NEARLY 2 INCHES OF
RAIN HAS FALLEN DURING THE PAST 2 HOURS OVER THE WARNED AREA. LAW
ENFORECEMENT REPORTS A MUD SLIDE ON COUNTY 0 JUST SOUTH OF OAK
RIDGE.
* SOME LOCATIONS THAT MAY BE AFFECTED INCLUDE...RICHLAND CENTER...
HIGHWAY 171 AND COUNTY U...HIGHWAYS 58 AND 154 AND HIGHWAY 130 AND
COUNT B.
EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE FLOODING OF CREEKS AND
STREAMS...ROADS AND ROADSIDE CULVERTS. THE HEAVY RAINS COULD ALSO
TRIGGER ROCK AND MUD-SLIDES IN STEEP TERRAIN. PERSONS IN THE WARNED
AREA SHOULD BE PREPARED TO ACT QUICKLY TO AVOID THESE HAZARDS.
LAT...LON 4356 9021 4321 9020 4331 9066 4355 9066
4356 9045
$$
RABERDING1 follow-up statement
000
WGUS73 KARX 190342
FFSARX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LA CROSSE WI
1040 PM CDT SAT AUG 18 2007
WIC103-190545-
RICHLAND WI-
1040 PM CDT SAT AUG 18 2007
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1245 AM CDT FOR
RICHLAND COUNTY...
AT 1037 PM CDT...THUNDERSTORMS PRODUCING FLASH FLOODING WAS REPORTED
OVER THE WARNED AREA WITH RADAR ESTIMATES OF 2 TO 4 INCHES ACROSS
THE WARNED AREA. LAW ENFORCEMENT REPORTS WATER OVER HIGHWAY 56 EAST
OF VIOLA AND ALSO OVER HIGHWAY 58 JUST NORTH OF LOYD.
LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO COUNTY ROADS
D AND N N...HIGHWAY 56 AND COUNTY M M...HIGHWAY 80 AND COUNTY C C...
GERMANTOWN...HIGHWAY 58 AND COUNTY K...BUNKER HILL...HUB CITY...ASH
RIDGE...WOODSTOCK...YUBA...WEST LIMA...ROCKBRIDGE...CAZENOVIA AND
BLOOM CITY.
AT 1037 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR REPORTED SLOW
MOVING THUNDERSTORMS WITH TORRENTIAL RAINFALL...RESULTING IN
DANGEROUS FLASH FLOODING ACROSS THE WARNED AREA..
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS. IF FLOODING IS OBSERVED ACT QUICKLY. MOVE TO
HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO
FLOODING WHEN WATER BEGINS RISING.
LAT...LON 4356 9021 4321 9020 4331 9066 4355 9066
4356 9045
$$
RABERDINGThe office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 8:43 PM CDT | Flash Flood Warning | ARX | La Crosse, Vernon | 3 hr |
| Aug 18, 11:39 PM CDT | Flash Flood Warning | ARX | Richland, Vernon | 6 hr |
| Aug 19, 1:39 AM CDT | Flash Flood Warning | ARX | Crawford | 4 hr |
| Aug 19, 3:48 AM CDT | River Flood Warning | ARX | Richland, Vernon | 8 days |
| Aug 19, 4:41 AM CDT | Flash Flood Warning | ARX | Grant | 3 hr |
| Aug 19, 7:12 AM CDT | River Flood Warning | ARX | Crawford | 11 days |
| Aug 19, 7:15 AM CDT | River Flood Warning | ARX | Richland, Vernon | 22 hr |
| Aug 19, 7:15 AM CDT | River Flood Warning | ARX | Crawford, Vernon | 10 days |
| Aug 19, 7:15 AM CDT | River Flood Warning | ARX | Crawford | 13 days |
| Aug 19, 7:50 AM CDT | Flash Flood Warning | ARX | Grant | 2 hr |
| Aug 19, 7:50 AM CDT | River Flood Warning | ARX | Vernon | 5 hr |
| Aug 19, 9:22 AM CDT | River Flood Warning | ARX | Crawford, Vernon | 7 days |
Nearby
Flash Flood Warnings in Wisconsin, 2007Every flash flood warning in 2007
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.