Alert archive / Wisconsin / Flash Flood Warnings in 2016
Flash Flood Warning 44, NWS La Crosse, WI
NWS La Crosse, WI issued this flash flood warning at Sep 21, 2016, 7:06 PM CDT for Clark County, Wisconsin. It was in force for 5 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
- Sep 21, 2016, 7:06 PM CDT (00:06 UTC)
- Expired
- Sep 22, 2016, 12:00 AM CDT
- In force
- 5 hr
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Flood severity
- None
County Clark County, WI
The radar
The La Crosse radar (KARX), 122 km from the middle of the area, began a volume at 00:08 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 |
|---|---|---|---|
| Sep 21, 8:15 PM CDT | FLASH FLOOD | Greenwood, WI | WIDESPREAD FLOODING OCCURRING ACROSS MUCH OF CLARK COUNTY, WITH NUMEROUS ROADS IMPASSABLE. . |
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 00:00Z, 0.1 hours before the alert went out and 198 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
- 2148 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- -29 m²/s²
- 0-3 km storm-relative helicity
- -43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
660 WGUS53 KARX 220006 FFWARX WIC019-220500- /O.NEW.KARX.FF.W.0044.160922T0006Z-160922T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE LA CROSSE WI 706 PM CDT WED SEP 21 2016 THE NATIONAL WEATHER SERVICE IN LA CROSSE HAS ISSUED A * FLASH FLOOD WARNING FOR... CLARK COUNTY IN CENTRAL WISCONSIN... * UNTIL MIDNIGHT CDT * AT 703 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. SEVERAL REPORTS OF WATER OVER ROADWAYS HAVE BEEN RECEIVED FROM CENTRAL CLARK COUNTY EARLY THIS EVENING ...AND ADDITIONAL HEAVY RAINFALL WILL IMPACT MUCH OF THE COUNTY THROUGH MIDNIGHT. 2 TO AS MUCH AS 5 ADDITIONAL INCHES OF RAIN ARE POSSIBLE. IF NOT ALREADY ONGOING...FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY. * SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... NEILLSVILLE...ABBOTSFORD...SPENCER...GREENWOOD...OWEN... DORCHESTER...SHERWOOD...LONGWOOD...WITHEE...UNITY... CURTISS AND SEVEN SISTER MOUNDS. 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 4503 9031 4442 9032 4460 9092 4503 9092 $$ LAWRENCE
1 follow-up statement
305 WGUS73 KARX 220116 FFSARX FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE LA CROSSE WI 816 PM CDT WED SEP 21 2016 WIC019-220500- /O.CON.KARX.FF.W.0044.000000T0000Z-160922T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ CLARK WI- 816 PM CDT WED SEP 21 2016 ...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR CLARK COUNTY... AT 813 PM CDT...COUNTY OFFICIALS REPORT WIDESPREAD FLOODING ACROSS MUCH OF CLARK COUNTY DUE TO ONGOING HEAVY RAINFALL. RAIN AMOUNTS OF 3 TO AS MUCH AS 6 INCHES HAVE ALREADY OCCURRED...WITH AN ADDITIONAL 1 TO 2 INCHES EXPECTED THROUGH MIDNIGHT...ESPECIALLY OVER THE SOUTHERN HALF OF THE COUNTY. PER REQUEST FROM COUNTY OFFICIALS...TRAVEL IS NOT ADVISED ACROSS CLARK COUNTY THIS EVENING DUE TO ONGOING FLOODING. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... NEILLSVILLE...ABBOTSFORD...SPENCER...COLBY...THORP...LOYAL... GREENWOOD...DORCHESTER...WILLARD...WITHEE...GRANTON...AND CURTISS. PRECAUTIONARY/PREPAREDNESS ACTIONS... TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD DEATHS OCCUR IN VEHICLES. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. && LAT...LON 4503 9031 4442 9032 4460 9092 4503 9092 $$ LAWRENCE
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 11:11 PM CDT | Areal Flood Warning | ARX | La Crosse | 3 hr |
| Sep 21, 11:55 PM CDT | Flash Flood Warning | ARX | Clark | 6 hr |
| Sep 22, 12:48 AM CDT | Flash Flood Warning | ARX | Crawford, Richland, Vernon | 6 hr |
| Sep 22, 2:21 AM CDT | River Flood Warning | ARX | Clark | 22 hr |
| Sep 22, 2:38 AM CDT | River Flood Warning | ARX | Richland, Vernon | 43 hr |
| Sep 22, 3:09 AM CDT | Areal Flood Warning | ARX | La Crosse | 12 hr |
| Sep 22, 4:21 AM CDT | River Flood Warning | ARX | Monroe, Vernon | 29 hr |
| Sep 22, 5:28 AM CDT | Areal Flood Warning | ARX | Clark | 24 hr |
| Sep 22, 6:51 AM CDT | Flash Flood Warning | ARX | Crawford, Richland, Vernon | 3 hr |
| Sep 22, 9:38 AM CDT | Flash Flood Warning | ARX | Crawford, Richland, Vernon | 3 hr |
| Sep 22, 11:20 AM CDT | River Flood Warning | ARX | Crawford, Grant | 10 days |
| Sep 22, 11:20 AM CDT | River Flood Warning | ARX | Grant | 9 days |
| Sep 22, 12:58 PM CDT | Areal Flood Warning | ARX | Crawford, Richland, Vernon | 21 hr |
Nearby
Flash Flood Warnings in Wisconsin, 2016Every flash flood warning in 2016
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.