Alert archive / Iowa / Flash Flood Warnings in 2024
Flash Flood Warning 13, NWS Des Moines, IA
NWS Des Moines, IA issued this flash flood warning at Jun 22, 2024, 12:24 AM CDT for 4 counties in Iowa. It was in force for 6 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 22, 2024, 12:24 AM CDT (05:24 UTC)
- Expired
- Jun 22, 2024, 6:04 AM CDT
- In force
- 6 hr
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Humboldt County, IA, Kossuth County, IA, Pocahontas County, IA, Winnebago County, IA
The radar
The Des Moines radar (KDMX), 159 km from the middle of the area, began a volume at 05:26 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 22, 4:10 AM CDT | RAIN 2.66 | Algona, IA | Mesonet station ALGIA Algona. |
| Jun 22, 6:00 AM CDT | RAIN 3.3 | 1 Nw Burt, IA | Cocorahs station IA-KS-5 Burt 0.5 NW. 3.30 inches. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 5.4 hours before the alert went out and 200 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
- 583 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
772
WGUS53 KDMX 220524
FFWDMX
IAC091-109-151-189-221130-
/O.NEW.KDMX.FF.W.0013.240622T0524Z-240622T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Des Moines IA
1224 AM CDT Sat Jun 22 2024
The National Weather Service in Des Moines has issued a
* Flash Flood Warning for...
Northern Humboldt County in north central Iowa...
Kossuth County in north central Iowa...
Winnebago County in north central Iowa...
Northern Pocahontas County in northwestern Iowa...
* Until 630 AM CDT Saturday.
* At 1224 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. The expected rainfall rate is 2
to 3 inches in 1 hour. Flash flooding is ongoing or expected to
begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Algona, Lake Mills, Laurens, Union Slogh, Buffalo Center, West
Bend, Bancroft, Rolfe, Burt, Whittemore, Thompson, Titonka,
Wesley, Livermore, Corwith, Bode, Fenton, Lu Verne, Lakota and
Rake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For the latest river and stream observations and forecasts refer to
weather.gov/desmoines/water.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 4291 9491 4291 9444 4325 9444 4350 9400
4350 9350 4342 9350 4326 9387 4326 9397
4289 9397 4277 9430 4276 9491
FLASH FLOOD...RADAR INDICATED
EXPECTED RAINFALL RATE...2-3 INCHES IN 1 HOUR
$$
Lee2 follow-up statements
379
WGUS73 KDMX 220742
FFSDMX
Flash Flood Statement
National Weather Service Des Moines IA
242 AM CDT Sat Jun 22 2024
IAC091-109-151-189-221130-
/O.CON.KDMX.FF.W.0013.000000T0000Z-240622T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Humboldt IA-Kossuth IA-Pocahontas IA-Winnebago IA-
242 AM CDT Sat Jun 22 2024
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 630 AM CDT THIS
MORNING FOR NORTHERN HUMBOLDT, KOSSUTH, WINNEBAGO AND NORTHERN
POCAHONTAS COUNTIES...
At 242 AM CDT, Doppler radar indicated that the heaviest rain has
moved out of the area, however, light to moderate rain is still
falling and waters may continue to rise. Flash flooding may still be
ongoing.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
Some locations that will experience flash flooding include...
Algona, Lake Mills, Laurens, Union Slogh, Buffalo Center, West
Bend, Bancroft, Rolfe, Burt, Whittemore, Thompson, Titonka,
Wesley, Livermore, Corwith, Bode, Fenton, Lu Verne, Lakota and
Rake.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
For the latest river and stream observations and forecasts refer to
weather.gov/desmoines/water.
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 4291 9491 4291 9444 4325 9444 4350 9400
4350 9350 4342 9350 4326 9387 4326 9397
4289 9397 4277 9430 4276 9491
FLASH FLOOD...RADAR INDICATED
$$
Lee883
WGUS73 KDMX 221104
FFSDMX
Flash Flood Statement
National Weather Service Des Moines IA
604 AM CDT Sat Jun 22 2024
IAC091-109-151-189-221114-
/O.CAN.KDMX.FF.W.0013.000000T0000Z-240622T1130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Humboldt IA-Kossuth IA-Pocahontas IA-Winnebago IA-
604 AM CDT Sat Jun 22 2024
...FLASH FLOOD WARNING FOR NORTHERN HUMBOLDT, KOSSUTH, WINNEBAGO AND
NORTHERN POCAHONTAS COUNTIES HAS BEEN REPLACED WITH A FLOOD
WARNING...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
A Flood Watch remains in effect until 100 PM CDT Saturday for
portions of central, north central, northeast, northwest, and west
central Iowa.
A Flood Watch remains in effect until 100 PM CDT Saturday for
portions of north central and northwest Iowa.
&&
LAT...LON 4291 9491 4291 9444 4325 9444 4350 9400
4350 9350 4342 9350 4326 9387 4326 9397
4289 9397 4277 9430 4276 9491
$$
LeeThe office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 9:30 PM CDT | River Flood Warning | DMX | Cerro Gordo, Floyd, Worth | 4 days |
| Jun 21, 10:46 PM CDT | Flash Flood Warning | DMX | Emmet, Kossuth | 6 hr |
| Jun 21, 11:35 PM CDT | Special Weather Statement | DMX | Palo Alto | 40 min |
| Jun 21, 11:41 PM CDT | Flash Flood Warning | DMX | Palo Alto | 6 hr |
| Jun 22, 1:02 AM CDT | Flash Flood Warning | DMX | Cerro Gordo, Hancock, Winnebago, Worth | 6 hr |
| Jun 22, 1:36 AM CDT | Flash Flood Warning | DMX | Cerro Gordo, Hancock | 5 hr |
| Jun 22, 1:49 AM CDT | Special Weather Statement | DMX | Cerro Gordo, Worth | 26 min |
| Jun 22, 4:51 AM CDT | Areal Flood Warning | DMX | Emmet, Kossuth | 6 hr |
| Jun 22, 5:52 AM CDT | Areal Flood Warning | DMX | Palo Alto | 5 hr |
| Jun 22, 6:04 AM CDT | Areal Flood Warning | DMX | Humboldt, Kossuth, Pocahontas, Winnebago | 6 hr |
| Jun 22, 6:43 AM CDT | Areal Flood Warning | DMX | Cerro Gordo, Hancock, Winnebago, Worth | 6 hr |
| Jun 22, 6:43 AM CDT | Areal Flood Warning | DMX | Cerro Gordo, Hancock | 6 hr |
| Jun 22, 10:54 AM CDT | Areal Flood Warning | DMX | Emmet, Palo Alto | 12 hr |
| Jun 22, 11:42 AM CDT | River Flood Warning | DMX | Boone, Hamilton, Webster | 21 days |
| Jun 22, 11:42 AM CDT | River Flood Warning | DMX | Humboldt | 5 days |
| Jun 22, 11:46 AM CDT | River Flood Warning | DMX | Black Hawk, Bremer, Butler | 6 days |
| Jun 22, 11:51 AM CDT | River Flood Warning | DMX | Black Hawk | 16 days |
| Jun 22, 11:51 AM CDT | River Flood Warning | DMX | Black Hawk, Bremer, Butler | 4 days |
| Jun 22, 11:51 AM CDT | River Flood Warning | DMX | Black Hawk | 6 days |
| Jun 22, 4:40 PM CDT | Tornado Warning | DMX | Black Hawk, Bremer | 35 min |
Nearby
Flash Flood Warnings in Iowa, 2024Every flash flood warning in 2024
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.