Alert archive / Minnesota / Flash Flood Warnings in 2017
Flash Flood Warning 4, NWS Twin Cities, MN
NWS Twin Cities, MN issued this flash flood warning at Aug 16, 2017, 8:13 PM CDT for Carver County, Hennepin County, Scott County, Minnesota. It was in force for 3 hr. 1 report 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
- Aug 16, 2017, 8:13 PM CDT (01:13 UTC)
- Expired
- Aug 16, 2017, 11:15 PM CDT
- In force
- 3 hr
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Carver County, MN, Hennepin County, MN, Scott County, MN
The radar
The Minneapolis radar (KMPX), 4 km from the middle of the area, began a volume at 01:12 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 |
|---|---|---|---|
| Aug 16, 8:40 PM CDT | FLASH FLOOD | 1 Ene Shakopee, MN | CARS STALLED AT THE INTERSECTION OF HIGHWAY 101 AND MARSCHALL RD. |
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, 1.2 hours before the alert went out and 6 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
- 445 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 756 m above ground
- 0-6 km bulk shear
- 56 kt
- 0-1 km storm-relative helicity
- 217 m²/s²
- 0-3 km storm-relative helicity
- 238 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 3.6
The text
As transmitted.
300 WGUS53 KMPX 170113 FFWMPX MNC019-053-139-170415- /O.NEW.KMPX.FF.W.0004.170817T0113Z-170817T0415Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ BULLETIN - EAS ACTIVATION REQUESTED Flash Flood Warning National Weather Service Twin Cities/Chanhassen MN 813 PM CDT WED AUG 16 2017 The National Weather Service in The Twin Cities has issued a * Flash Flood Warning for... Southwestern Hennepin County in east central Minnesota... Northeastern Scott County in east central Minnesota... East central Carver County in east central Minnesota... * Until 1115 PM CDT * At 813 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. One to two inches of rain have already fallen. Flash flooding is expected to begin shortly. * Some locations that will experience flooding include... Plymouth, Eden Prairie, Minnetonka, Shakopee, Savage, Chaska, Chanhassen, Prior Lake, Mound, Orono, Minnetrista and Wayzata. Additional rainfall amounts of of an inch are possible in the warned area. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && LAT...LON 4496 9366 4500 9349 4470 9335 4475 9352 $$ BORGHOFF
1 follow-up statement
950 WGUS73 KMPX 170347 FFSMPX Flash Flood Statement National Weather Service Twin Cities/Chanhassen MN 1047 PM CDT WED AUG 16 2017 MNC019-053-139-170356- /O.CAN.KMPX.FF.W.0004.000000T0000Z-170817T0415Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hennepin MN-Scott MN-Carver MN- 1047 PM CDT WED AUG 16 2017 ...THE FLASH FLOOD WARNING FOR SOUTHWESTERN HENNEPIN...NORTHEASTERN SCOTT AND EAST CENTRAL CARVER COUNTIES IS CANCELLED... The heavy rain has ended...and flooding is no longer expected to pose a threat. Flood waters have receded...and are no longer expected to pose a threat. Please continue to heed any remaining road closures. LAT...LON 4496 9366 4500 9349 4470 9335 4475 9352 $$ DWE
The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 7:29 PM CDT | Special Weather Statement | MPX | Carver, McLeod, Scott | 61 min |
| Aug 16, 7:42 PM CDT | Tornado Warning | MPX | Carver, Hennepin, Scott | 20 min |
| Aug 16, 7:49 PM CDT | Flood Watch | MPX | Benton, Chippewa, Douglas, Kandiyohi, Lac qui Parle, McLeod and 13 more | 12 hr |
| Aug 16, 7:59 PM CDT | Tornado Warning | MPX | Carver, McLeod | 31 min |
| Aug 16, 10:42 PM CDT | Areal Flood Warning | MPX | Chippewa, Kandiyohi, Lac qui Parle, Redwood, Renville, Swift and 1 more | 9 hr |
| Aug 16, 11:57 PM CDT | Special Weather Statement | MPX | Renville | 48 min |
| Aug 17, 1:03 AM CDT | Flash Flood Warning | MPX | Redwood, Renville | 4 hr |
| Aug 17, 1:31 AM CDT | Special Weather Statement | MPX | Renville | 44 min |
| Aug 17, 2:04 AM CDT | High Wind Warning | MPX | Brown, Nicollet, Sibley | 88 min |
| Aug 17, 3:32 AM CDT | Wind Advisory | MPX | Blue Earth, Brown, Carver, Dakota, Goodhue, Le Sueur and 10 more | 4 hr |
Nearby
Flash Flood Warnings in Minnesota, 2017Every flash flood warning in 2017
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.