Alert archive / Minnesota / Flash Flood Warnings in 2011
Flash Flood Warning 3, NWS Twin Cities, MN
NWS Twin Cities, MN issued this flash flood warning at Jul 10, 2011, 6:08 AM CDT for Carver County, Hennepin County, Ramsey County, Minnesota. It was in force for 89 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 10, 2011, 6:08 AM CDT (11:08 UTC)
- Expired
- Jul 10, 2011, 7:37 AM CDT
- In force
- 89 min
- Issued by
- NWS Twin Cities, MN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Carver County, MN, Hennepin County, MN, Ramsey County, MN
The radar
The Minneapolis radar (KMPX), 17 km from the middle of the area, began a volume at 11:08 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, 11.1 hours before the alert went out and 19 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
- 1607 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 1076 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 121 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 7.3
The text
As transmitted, in the capitals the NWS used until 2016.
045
WGUS53 KMPX 101108
FFWMPX
MNC019-053-123-101400-
/O.NEW.KMPX.FF.W.0003.110710T1108Z-110710T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
608 AM CDT SUN JUL 10 2011
THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES HAS ISSUED A
* FLASH FLOOD WARNING FOR...
CENTRAL CARVER COUNTY IN EAST CENTRAL MINNESOTA...
RAMSEY COUNTY IN EAST CENTRAL MINNESOTA...
SOUTHERN HENNEPIN COUNTY IN EAST CENTRAL MINNESOTA...
* UNTIL 900 AM CDT
* AT 603 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL TRACKING ACROSS THE
WARNED AREA. RAINFALL AMOUNTS OF NEAR 1 TO 1.5 INCHES IN AN HOUR
ARE LIKELY.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
TO OCCUR IN URBAN AREAS. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING
INCLUDE...MINNEAPOLIS...ST PAUL...ARDEN HILLS...BLOOMINGTON...CARVER...
CHANHASSEN...CHASKA...COLOGNE...DEEPHAVEN...EDEN PRAIRIE...EDINA...
EXCELSIOR....GOLDEN VALLEY...HOPKINS...LITTLE CANADA...MAPLEWOOD...MAYER
MINNETONKA...MOUNDS VIEW...NEW BRIGHTON...NORTH OAKS...RICHFIELD...
ROBBINSDALE...ROSEVILLE...SHOREVIEW...SHOREWOOD...ST BONIFACIUS AND
ST LOUIS PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.
&&
LAT...LON 4471 9384 4488 9394 4496 9344 4506 9329
4504 9328 4504 9323 4511 9321 4511 9301
4493 9299 4491 9305 4492 9313 4486 9321
4481 9334 4480 9354 4475 9362
$$1 follow-up statement
290
WGUS73 KMPX 101237
FFSMPX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN
737 AM CDT SUN JUL 10 2011
MNC019-053-123-101247-
/O.CAN.KMPX.FF.W.0003.000000T0000Z-110710T1400Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CARVER MN-HENNEPIN MN-RAMSEY MN-
737 AM CDT SUN JUL 10 2011
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR RAMSEY...SOUTHERN
HENNEPIN AND CENTRAL CARVER COUNTIES IS CANCELLED...
FLOOD PRODUCING RAINS HAVE ENDED IN THE WARNED AREA AND ADDITIONAL
SCATTERED SHOWERS AND THUNDERSTORMS APPEAR TO BE DEVELOPING OVER AREAS
TO THE NORTH...OVER EAST CENTRAL MINNESOTA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF FLOODING WAS OBSERVED PLEASE RELAY YOUR REPORT TO LOCAL LAW
ENFORCEMENT OR TO THE NATIONAL WEATHER SERVICE IN THE TWIN CITIES.
&&
LAT...LON 4471 9384 4488 9394 4496 9344 4506 9329
4504 9328 4504 9323 4511 9321 4511 9301
4493 9299 4491 9305 4492 9313 4486 9321
4481 9334 4480 9354 4475 9362
$$The office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 3:15 AM CDT | Special Weather Statement | MPX | Watonwan | 60 min |
| Jul 10, 4:06 AM CDT | Special Weather Statement | MPX | Scott | 39 min |
| Jul 10, 4:22 AM CDT | Severe Thunderstorm Warning | MPX | Carver, Dakota, Scott, Sibley | 68 min |
| Jul 10, 4:56 AM CDT | Areal Flood Advisory | MPX | Carver, Dakota, Le Sueur, Rice, Scott, Sibley | 3 hr |
| Jul 10, 5:27 AM CDT | Special Weather Statement | MPX | Goodhue | 63 min |
| Jul 10, 5:32 AM CDT | Severe Thunderstorm Warning | MPX | Dakota, Goodhue, Washington | 58 min |
| Jul 10, 6:34 PM CDT | Special Weather Statement | MPX | Douglas, Kandiyohi, Pope, Stearns, Stevens, Swift and 1 more | 86 min |
| Jul 10, 6:44 PM CDT | Severe Thunderstorm Warning | MPX | Douglas, Pope, Stevens | 61 min |
Nearby
Flash Flood Warnings in Minnesota, 2011Every flash flood warning in 2011
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.