Alert archive / Minnesota / Flash Flood Warnings in 2016
Flash Flood Warning 33, NWS Twin Cities, MN
NWS Twin Cities, MN issued this flash flood warning at Sep 21, 2016, 11:11 PM CDT for Anoka County, Hennepin County, Minnesota. It was in force for 5 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
- Sep 21, 2016, 11:11 PM CDT (04:11 UTC)
- Expired
- Sep 22, 2016, 4:00 AM CDT
- In force
- 5 hr
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Emergency
- Flash flood emergency
- Flood severity
- None
Counties Anoka County, MN, Hennepin County, MN
The radar
The Minneapolis radar (KMPX), 35 km from the middle of the area, began a volume at 04:12 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 |
|---|---|---|---|
| Sep 22, 12:23 AM CDT | HEAVY RAIN 9.86 | 2 W Maple Grove, MN | RAINFALL TOTAL SINCE THIS MORNING. |
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, 4.2 hours before the alert went out and 37 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
- 144 J/kg
- Mixed-layer CIN
- -361 J/kg
- Mixed-layer LCL
- 641 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 428 m²/s²
- 0-3 km storm-relative helicity
- 596 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 11.6
The text
As transmitted.
764
WGUS53 KMPX 220411
FFWMPX
MNC003-053-220900-
/O.NEW.KMPX.FF.W.0033.160922T0411Z-160922T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
1111 PM CDT WED SEP 21 2016
...FLASH FLOOD EMERGENCY FOR MAPLE GROVE...BROOKLYN PARK...AND
JUST NORTH OF FRIDLEY...
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* FLASH FLOOD WARNING FOR...
NORTHEASTERN HENNEPIN COUNTY IN EAST CENTRAL MINNESOTA...
SOUTH CENTRAL ANOKA COUNTY IN EAST CENTRAL MINNESOTA...
* UNTIL 400 AM CDT
* AT 1106 PM CDT...EMERGENCY MANAGEMENT OFFICIALS REPORTED
WIDESPREAD...SIGNIFICANT FLOODING OCCURRING ACROSS THE WARNED
AREA. 6 TO 9 INCHES OF RAIN HAVE ALREADY FALLEN AND 2 TO 3 MORE
INCHES ARE LIKELY AS ADDITIONAL THUNDERSTORMS PUSH ACROSS THE
AREA. WIDESPREAD...SIGNIFICANT FLOODING IS OCCURRING!
THIS IS A FLASH FLOOD EMERGENCY FOR PORTIONS OF NORTHERN HENNEPIN
AND FAR SOUTHERN ANOKA COUNTIES...INCLUDING THE CITIES OF MAPLE
GROVE...BROOKLYN PARK...AND JUST NORTH OF FRIDLEY. THIS IS A
PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER GROUND NOW!
* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BROOKLYN PARK...MAPLE GROVE...COON RAPIDS...BLAINE...
BROOKLYN CENTER...FRIDLEY...MOUNDS VIEW...SPRING LAKE PARK...
CORCORAN...OSSEO AND CRYSTAL AIRPORT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MOVE TO HIGHER GROUND NOW. THIS IS AN EXTREMELY DANGEROUS AND
LIFE-THREATENING SITUATION. DO NOT ATTEMPT TO TRAVEL UNLESS YOU ARE
FLEEING AN AREA SUBJECT TO FLOODING OR UNDER AN EVACUATION ORDER.
&&
LAT...LON 4512 9321 4512 9323 4510 9322 4509 9323
4508 9323 4507 9360 4511 9361 4515 9319
$$
BORGHOFF1 follow-up statement
224
WGUS73 KMPX 220854
FFSMPX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
354 AM CDT THU SEP 22 2016
MNC003-053-220903-
/O.EXP.KMPX.FF.W.0033.000000T0000Z-160922T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
HENNEPIN MN-ANOKA MN-
354 AM CDT THU SEP 22 2016
...THE FLASH FLOOD WARNING FOR NORTHEASTERN HENNEPIN AND SOUTH
CENTRAL ANOKA COUNTIES WILL EXPIRE AT 400 AM CDT...
FLOOD WATERS ARE RECEDING...AND ADDITIONAL FLOODING IS NO LONGER
EXPECTED. PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.
LAT...LON 4512 9321 4512 9323 4510 9322 4509 9323
4508 9323 4507 9360 4511 9361 4515 9319
$$
FRANKSThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 7:00 PM CDT | Severe Thunderstorm Warning | MPX | Hennepin, Wright | 30 min |
| Sep 21, 8:10 PM CDT | Severe Thunderstorm Warning | MPX | Hennepin, Ramsey | 50 min |
| Sep 21, 8:24 PM CDT | Flash Flood Warning | MPX | Hennepin, Ramsey | 3 hr |
| Sep 21, 10:07 PM CDT | Flash Flood Warning | MPX | Blue Earth, Goodhue, Rice, Steele, Waseca | 7 hr |
| Sep 21, 11:21 PM CDT | Severe Thunderstorm Warning | MPX | Freeborn | 39 min |
| Sep 22, 12:23 AM CDT | Flash Flood Warning | MPX | Blue Earth, Faribault, Freeborn, Steele, Waseca | 4 hr |
| Sep 22, 2:21 AM CDT | Special Weather Statement | MPX | Le Sueur, Rice | 3 hr |
| Sep 22, 2:29 AM CDT | Special Weather Statement | MPX | Blue Earth | 3 hr |
| Sep 22, 3:59 AM CDT | Flash Flood Watch | MPX | Blue Earth, Brown, Dakota, Faribault, Freeborn, Goodhue and 9 more | 7 hr |
| Sep 22, 4:48 AM CDT | Areal Flood Warning | MPX | Blue Earth, Faribault, Freeborn, Steele, Waseca | 24 hr |
| Sep 22, 4:57 AM CDT | Areal Flood Warning | MPX | Blue Earth, Goodhue, Le Sueur, Rice, Steele, Waseca | 24 hr |
| Sep 22, 4:57 AM CDT | River Flood Warning | MPX | Goodhue | 70 hr |
| Sep 22, 6:51 AM CDT | Special Weather Statement | MPX | Watonwan | 3 hr |
| Sep 22, 10:57 AM CDT | River Flood Warning | MPX | Goodhue | 43 hr |
Nearby
Flash Flood Warnings in Minnesota, 2016Every flash flood warning in 2016
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.