Alert archive / Minnesota / Flash Flood Warnings in 2018

Flash Flood Warning 19, NWS Duluth, MN

July 12, 2018Aitkin County, Crow Wing County, Pine County, Minnesota

NWS Duluth, MN issued this flash flood warning at Jul 12, 2018, 5:57 AM CDT for Aitkin County, Crow Wing County, Pine County, Minnesota. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 12, 2018, 5:57 AM CDT (10:57 UTC)
Expired: Jul 12, 2018, 10:00 AM CDT
In force: 4 hr
Issued by: NWS Duluth, MN
Area: Storm-based polygon
Flood severity: None

Counties Aitkin County, MN, Crow Wing County, MN, Pine County, MN

The radar

The Duluth radar (KDLH), 103 km from the middle of the area, began a volume at 10:59 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

Minneapolis, MN (KMPX), launched 00:00Z, 11.0 hours before the alert went out and 173 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: 3531 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 1135 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 82 m²/s²
0-3 km storm-relative helicity: 221 m²/s²
Significant tornado parameter: 2.0
Supercell composite: 12.9

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Duluth, MN wrote its last area forecast discussion before this flash flood warning went out at Jul 12, 3:55 AM CDT, 2 hours 2 minutes earlier.

Area forecast discussion, Jul 12, 3:55 AM CDT, 2 hours 2 minutes before

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Hazardous weather outlook, Jul 12, 4:21 AM CDT, 1 hour 36 minutes before

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In the hours before

Local storm report, Jul 12, 3:50 AM CDT, 2 hours 7 minutes before

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Special weather statement, Jul 12, 3:53 AM CDT, 2 hours 4 minutes before

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Local storm report, Jul 12, 4:19 AM CDT, 1 hour 38 minutes before

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Local storm report, Jul 12, 4:24 AM CDT, 1 hour 33 minutes before

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Special weather statement, Jul 12, 4:24 AM CDT, 1 hour 33 minutes before

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Local storm report, Jul 12, 4:32 AM CDT, 1 hour 25 minutes before

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The office that day

Everything else NWS Duluth, MN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 11, 8:58 PM CDT	Special Weather Statement	DLH	Koochiching	32 min
Jul 11, 9:32 PM CDT	Special Weather Statement	DLH	Koochiching	13 min
Jul 11, 9:37 PM CDT	Severe Thunderstorm Warning	DLH	Koochiching	38 min
Jul 11, 10:20 PM CDT	Severe Thunderstorm Warning	DLH	Koochiching	40 min
Jul 11, 10:42 PM CDT	Tornado Warning	DLH	Koochiching	33 min
Jul 11, 11:10 PM CDT	Severe Thunderstorm Warning	DLH	Itasca, Koochiching	50 min
Jul 11, 11:42 PM CDT	Severe Thunderstorm Warning	DLH	Cass	48 min
Jul 11, 11:59 PM CDT	Severe Thunderstorm Warning	DLH	Aitkin, Cass, Itasca	46 min
Jul 12, 12:18 AM CDT	Severe Thunderstorm Warning	DLH	Cass, Crow Wing	42 min
Jul 12, 12:34 AM CDT	Flash Flood Warning	DLH	Itasca, Koochiching	3 hr
Jul 12, 12:42 AM CDT	Severe Thunderstorm Warning	DLH	Aitkin, Cass, Itasca, Saint Louis	48 min
Jul 12, 12:53 AM CDT	Severe Thunderstorm Warning	DLH	Aitkin, Cass, Crow Wing	37 min
Jul 12, 12:59 AM CDT	Special Weather Statement	DLH	Saint Louis	31 min
Jul 12, 1:16 AM CDT	Severe Thunderstorm Warning	DLH	Cass, Crow Wing	29 min
Jul 12, 1:27 AM CDT	Severe Thunderstorm Warning	DLH	Aitkin, Carlton, Itasca, Saint Louis	48 min
Jul 12, 1:33 AM CDT	Special Weather Statement	DLH	Saint Louis	42 min
Jul 12, 1:47 AM CDT	Special Weather Statement	DLH	Crow Wing	28 min
Jul 12, 1:56 AM CDT	Severe Thunderstorm Warning	DLH	Aitkin, Cass, Crow Wing	49 min
Jul 12, 2:14 AM CDT	Special Weather Statement	DLH	Carlton	16 min
Jul 12, 2:15 AM CDT	Special Weather Statement	DLH	Saint Louis	45 min
Jul 12, 2:19 AM CDT	Flash Flood Warning	DLH	Aitkin, Cass, Crow Wing, Itasca	4 hr
Jul 12, 2:22 AM CDT	Severe Thunderstorm Warning	DLH	Saint Louis	38 min
Jul 12, 2:31 AM CDT	Special Marine Warning	DLH		47 min
Jul 12, 2:41 AM CDT	Severe Thunderstorm Warning	DLH	Aitkin, Carlton, Cass, Crow Wing	49 min
Jul 12, 3:00 AM CDT	Flash Flood Warning	DLH	Aitkin, Carlton, Cass, Crow Wing, Pine, Saint Louis	3 hr
Jul 12, 3:17 AM CDT	Areal Flood Warning	DLH	Itasca, Koochiching, Saint Louis	9 hr
Jul 12, 3:34 AM CDT	Special Weather Statement	DLH	Pine	26 min
Jul 12, 3:53 AM CDT	Special Weather Statement	DLH	Pine	37 min
Jul 12, 4:07 AM CDT	Small Craft Advisory	DLH		12 hr
Jul 12, 4:20 AM CDT	Flash Flood Warning	DLH	Pine	5 hr
Jul 12, 4:24 AM CDT	Special Weather Statement	DLH	Pine	36 min
Jul 12, 6:21 AM CDT	Special Weather Statement	DLH	Pine	24 min
Jul 12, 6:28 AM CDT	Severe Thunderstorm Warning	DLH	Pine	13 min
Jul 12, 9:42 AM CDT	Areal Flood Warning	DLH	Aitkin, Carlton, Crow Wing, Pine	6 hr
Jul 12, 11:45 AM CDT	Special Weather Statement	DLH	Chisago	15 min
Jul 12, 4:01 PM CDT	River Flood Warning	DLH	Aitkin, Crow Wing	42 hr
Jul 12, 8:31 AM CDT	Special Weather Statement	DLH	Burnett	29 min
Jul 12, 9:01 AM CDT	Special Weather Statement	DLH	Burnett	29 min
Jul 12, 9:30 AM CDT	Special Weather Statement	DLH	Burnett	30 min
Jul 12, 11:09 AM CDT	Special Weather Statement	DLH	Burnett	36 min
Jul 12, 5:15 PM CDT	Special Weather Statement	DLH	Burnett	30 min
Jul 12, 5:57 PM CDT	Special Weather Statement	DLH	Burnett, Washburn	33 min
Jul 12, 6:34 PM CDT	Special Weather Statement	DLH	Washburn	26 min
Jul 12, 6:52 PM CDT	Special Weather Statement	DLH	Washburn	23 min

Nearby

Flash Flood Warnings in Minnesota, 2018 Every flash flood warning in 2018

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.