Alert archive / Minnesota / Flash Flood Warnings in 2022

Flash Flood Warning 2, NWS Grand Forks, ND

April 23, 2022Clearwater County, Minnesota

NWS Grand Forks, ND issued this flash flood warning at Apr 23, 2022, 11:58 AM CDT for Clearwater County, Minnesota. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Apr 23, 2022, 11:58 AM CDT (16:58 UTC)
Expired: Apr 23, 2022, 6:00 PM CDT
In force: 6 hr
Issued by: NWS Grand Forks, ND
Area: Storm-based polygon
Flood severity: None

County Clearwater County, MN

The radar

The Fargo/Grand Forks radar (KMVX), 141 km from the middle of the area, began a volume at 16:58 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

International Fa, MN (KINL), launched 12:00Z, 5.0 hours before the alert went out and 191 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 516 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 163 m²/s²
0-3 km storm-relative helicity: 227 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

870 
WGUS53 KFGF 231658
FFWFGF
MNC029-232300-
/O.NEW.KFGF.FF.W.0002.220423T1658Z-220423T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Grand Forks ND
1158 AM CDT Sat Apr 23 2022

The National Weather Service in Grand Forks has issued a

* Flash Flood Warning for...
  Central Clearwater County in northwestern Minnesota...

* Until 600 PM CDT Saturday.

* At 1158 AM CDT, the public reported ongoing flooding over US 
  Highway 2 and Minnesota Highway 92. Debris has been washed onto 
  roadways. Minnesota Highway 92 between Highway 32 and 59 are 
  closed. Between 1 and 2 inches of rain have fallen. Additional 
  rainfall amounts of 0.5 to 1 inch are possible in the warned area.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Public reported.

  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...
  Bagley, Clearbrook, Rice Lake, Leonard, Ebro, Weme, northwestern 
  Lower Rice Lake and northern White Earth Nation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Safety message - Turn around, don't drown. Don't travel through 
flooded areas. Most flood deaths occur in vehicles.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 4768 9558 4778 9529 4776 9523 4771 9519
      4769 9519 4768 9519 4738 9535 4737 9549
      4755 9555 4758 9555 4759 9555 4762 9555
      4763 9555 4766 9555 4767 9555 4767 9556
      4767 9558

FLASH FLOOD...OBSERVED

$$

Perroux

1 follow-up statement

866 
WGUS73 KFGF 232253
FFSFGF

Flash Flood Statement
National Weather Service Grand Forks ND
553 PM CDT Sat Apr 23 2022

MNC029-232303-
/O.EXP.KFGF.FF.W.0002.000000T0000Z-220423T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clearwater MN-
553 PM CDT Sat Apr 23 2022

...FLASH FLOOD WARNING WILL EXPIRE AT 6 PM CDT THIS EVENING FOR 
CENTRAL CLEARWATER COUNTY...

Overland flooding still continues within the warned area, but has 
been replaced by a Flood Warning.

LAT...LON 4768 9558 4778 9529 4776 9523 4771 9519
      4769 9519 4768 9519 4738 9535 4737 9549
      4755 9555 4758 9555 4759 9555 4762 9555
      4763 9555 4766 9555 4767 9555 4767 9556
      4767 9558

$$

Perroux

The office that day

Everything else NWS Grand Forks, ND issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 22, 10:06 PM CDT	Severe Thunderstorm Warning	FGF	Clay, Wilkin	29 min
Apr 23, 12:15 AM CDT	Special Weather Statement	FGF	Clearwater	60 min
Apr 23, 2:50 AM CDT	Special Weather Statement	FGF	Clearwater	40 min
Apr 23, 3:57 AM CDT	Special Weather Statement	FGF	Beltrami, Clearwater	48 min
Apr 23, 4:32 AM CDT	Areal Flood Warning	FGF	Beltrami, Clearwater, Mahnomen, Norman, Pennington, Polk and 1 more	11 hr
Apr 23, 4:51 AM CDT	Special Weather Statement	FGF	Pennington, Red Lake	39 min
Apr 23, 5:35 AM CDT	Special Weather Statement	FGF	Beltrami	25 min
Apr 23, 6:03 AM CDT	Special Weather Statement	FGF	Beltrami	57 min
Apr 23, 6:18 AM CDT	Areal Flood Warning	FGF	Marshall, Pennington, Polk	10 hr
Apr 23, 7:20 AM CDT	Areal Flood Warning	FGF	Beltrami, Clearwater, Hubbard, Lake of the Woods, Marshall, Pennington and 1 more	18 hr
Apr 23, 8:00 AM CDT	River Flood Warning	FGF	Pennington	4 days
Apr 23, 8:56 AM CDT	River Flood Warning	FGF	Norman	6 days
Apr 23, 8:56 AM CDT	River Flood Warning	FGF	Norman	27 days
Apr 23, 8:56 AM CDT	River Flood Warning	FGF	Polk	12 days
Apr 23, 8:56 AM CDT	River Flood Warning	FGF	Norman	6 days
Apr 23, 8:56 AM CDT	River Flood Warning	FGF	Clay	5 days
Apr 23, 8:56 AM CDT	River Flood Warning	FGF	Clay	5 days
Apr 23, 10:13 AM CDT	River Flood Warning	FGF	Roseau	4 days
Apr 23, 11:13 AM CDT	Flash Flood Warning	FGF	Polk	9 hr
Apr 23, 11:32 AM CDT	River Flood Warning	FGF	Norman	28 days
Apr 23, 1:03 PM CDT	Flash Flood Warning	FGF	Clearwater, Polk, Red Lake	6 hr
Apr 23, 1:27 PM CDT	Wind Advisory	FGF	Clay, Grant, Otter Tail, Wilkin	5 hr
Apr 23, 3:56 PM CDT	Severe Thunderstorm Warning	FGF	Polk	49 min
Apr 23, 4:05 PM CDT	Winter Weather Advisory	FGF	Kittson, Marshall, Polk	42 hr
Apr 23, 4:47 PM CDT	Areal Flood Warning	FGF	Marshall, Pennington, Polk	4 days
Apr 23, 5:03 PM CDT	Special Weather Statement	FGF	Norman	27 min
Apr 23, 5:10 PM CDT	Areal Flood Warning	FGF	Becker, Clearwater, Mahnomen, Polk, Red Lake	4 days
Apr 23, 5:22 PM CDT	Flash Flood Warning	FGF	Norman	6 hr
Apr 23, 5:28 PM CDT	Special Weather Statement	FGF	Polk	32 min
Apr 23, 5:36 PM CDT	Severe Thunderstorm Warning	FGF	Polk	24 min
Apr 23, 6:00 PM CDT	Special Weather Statement	FGF	Polk	45 min
Apr 23, 6:09 PM CDT	Areal Flood Warning	FGF	Beltrami, Clearwater, Mahnomen, Norman, Pennington, Polk and 1 more	4 days
Apr 23, 6:26 PM CDT	Flash Flood Warning	FGF	Polk	6 hr

Nearby

Flash Flood Warnings in Minnesota, 2022 Every flash flood warning in 2022

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.