Alert archive / Wisconsin / Areal Flood Advisories in 2021
Areal Flood Advisory 7, NWS La Crosse, WI
NWS La Crosse, WI issued this areal flood advisory at Jun 29, 2021, 12:28 PM CDT for Crawford County, Wisconsin; Allamakee County, Iowa. It was in force for 53 min.
The area
The counties it named.
The facts
- Issued
- Jun 29, 2021, 12:28 PM CDT (17:28 UTC)
- Expired
- Jun 29, 2021, 1:21 PM CDT
- In force
- 53 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
Counties Allamakee County, IA, Crawford County, WI
The radar
The La Crosse radar (KARX), 62 km from the middle of the area, began a volume at 17:31 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.
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 5.5 hours before the alert went out and 190 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
- 403 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 837 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 95 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.4
What forecasters said that day
The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS La Crosse, WI wrote its last area forecast discussion before this areal flood advisory went out at Jun 29, 5:21 AM CDT, 7 hours 7 minutes earlier.
Area forecast discussion, Jun 29, 5:21 AM CDT, 7 hours 7 minutes before
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</html>Hazardous weather outlook, Jun 29, 3:21 AM CDT, 9 hours 7 minutes before
Hazardous Weather Outlook National Weather Service La Crosse WI 321 AM CDT Tue Jun 29 2021 IAZ008>011-018-019-029-030-MNZ079-086>088-094>096-WIZ017-029- 032>034-041>044-053>055-061-301200- Mitchell-Howard-Winneshiek-Allamakee-Floyd-Chickasaw-Fayette- Clayton-Wabasha-Dodge-Olmsted-Winona-Mower-Fillmore-Houston- Taylor-Clark-Buffalo-Trempealeau-Jackson-La Crosse-Monroe-Juneau- Adams-Vernon-Crawford-Richland-Grant- 321 AM CDT Tue Jun 29 2021 This Hazardous Weather Outlook is for portions of southeast Minnesota...northeast Iowa and southwest into central Wisconsin. .DAY ONE...Today and Tonight Scattered thunderstorms are possible today. Although organized severe weather is not expected, strong winds, small hail, and locally heavy rainfall may accompany any storms, especially this afternoon and early evening. .DAYS TWO THROUGH SEVEN...Wednesday through Monday Isolated storms remain possible Wednesday into Thursday but severe weather is unlikely. .SPOTTER INFORMATION STATEMENT... No action needed. .EMERGENCY MANAGEMENT COORDINATION... No webinar is scheduled.
In the hours before
Local storm report, Jun 29, 8:09 AM CDT, 4 hours 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
809 AM CDT TUE JUN 29 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0808 AM HEAVY RAIN 6 W GOODRICH 45.15N 90.20W
06/29/2021 M1.40 INCH TAYLOR WI PUBLIC
&&Local storm report, Jun 29, 12:28 PM CDT, 0 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LA CROSSE WI
1228 PM CDT TUE JUN 29 2021
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1200 PM FLOOD 6 N PRAIRIE DU CHIEN 43.12N 91.14W
06/29/2021 CRAWFORD WI LAW ENFORCEMENT
ABOUT A FOOT OF WATER REPORTED ON PART OF
HWY 35 NEAR COUNTY ROAD N.
&&The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 1:21 PM CDT | Flash Flood Warning | ARX | Crawford | 3 hr |
| Jun 29, 1:31 PM CDT | Special Weather Statement | ARX | Buffalo, Clark | 59 min |
| Jun 29, 2:29 PM CDT | Special Weather Statement | ARX | Clark | 31 min |
| Jun 29, 3:22 PM CDT | Areal Flood Advisory | ARX | Crawford | 68 min |
| Jun 29, 3:25 PM CDT | Tornado Warning | ARX | Crawford | 65 min |
| Jun 29, 4:29 PM CDT | Special Weather Statement | ARX | La Crosse | 31 min |
| Jun 29, 4:59 PM CDT | Special Weather Statement | ARX | La Crosse, Monroe | 61 min |
| Jun 29, 5:50 PM CDT | Special Weather Statement | ARX | Juneau | 55 min |
| Jun 29, 2:50 PM CDT | Special Weather Statement | ARX | Allamakee | 40 min |
| Jun 29, 3:54 PM CDT | Special Weather Statement | ARX | Winona | 36 min |
Nearby
Areal Flood Advisories in Wisconsin, 2021Areal Flood Advisories in Iowa, 2021Every areal flood advisory in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.