Alert archive / Iowa / Flood Watches in 2024
Flood Watch 2, NWS La Crosse, WI
NWS La Crosse, WI issued this flood watch at May 24, 2024, 2:38 AM CDT for 4 counties in Iowa. It took effect at May 24, 2024, 4:00 AM CDT. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- May 24, 2024, 2:38 AM CDT (07:38 UTC)
- In effect from
- May 24, 2024, 4:00 AM CDT
- Expired
- May 24, 2024, 4:00 PM CDT
- In force
- 12 hr
- Issued by
- NWS La Crosse, WI
- Flood severity
- None
Counties Chickasaw County, IA, Clayton County, IA, Fayette County, IA, Floyd County, IA
The radar
The La Crosse radar (KARX), 120 km from the middle of the area, began a volume at 07:40 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 00:00Z, 7.6 hours before the alert went out and 197 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
- 2523 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 82 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this flood watch 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 flood watch went out at May 23, 10:23 PM CDT, 4 hours 15 minutes earlier.
Area forecast discussion, May 23, 10:23 PM CDT, 4 hours 15 minutes before
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</html>The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 7:42 AM CDT | Severe Thunderstorm Warning | ARX | Grant | 63 min |
| May 24, 10:32 AM CDT | River Flood Warning | ARX | Juneau | 8 days |
| May 24, 1:02 PM CDT | Special Weather Statement | ARX | Grant | 43 min |
| May 24, 2:36 PM CDT | Special Weather Statement | ARX | Grant | 54 min |
| May 24, 4:25 AM CDT | Special Weather Statement | ARX | Chickasaw | 35 min |
| May 24, 5:47 AM CDT | Special Weather Statement | ARX | Chickasaw, Floyd, Mitchell | 43 min |
| May 24, 6:01 AM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd, Howard, Mitchell | 44 min |
| May 24, 6:31 AM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Fayette, Howard, Winneshiek | 44 min |
| May 24, 7:13 AM CDT | Special Weather Statement | ARX | Allamakee | 32 min |
| May 24, 6:58 AM CDT | Special Weather Statement | ARX | Dodge, Mower, Olmsted | 32 min |
| May 24, 8:24 AM CDT | Special Weather Statement | ARX | Dodge, Olmsted, Wabasha | 36 min |
Nearby
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.