Alert archive / Minnesota / Special Weather Statements in 2020
Special Weather Statement, NWS Twin Cities, MN
NWS Twin Cities, MN issued this special weather statement at Aug 9, 2020, 12:49 PM CDT for Ramsey County, Washington County, Minnesota. It was in force for 41 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
- Aug 9, 2020, 12:49 PM CDT (17:49 UTC)
- Expired
- Aug 9, 2020, 1:30 PM CDT
- In force
- 41 min
- Issued by
- NWS Twin Cities, MN
Counties Ramsey County, MN, Washington County, MN
The radar
The Minneapolis radar (KMPX), 55 km from the middle of the area, began a volume at 17:51 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 12:00Z, 5.8 hours before the alert went out and 57 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
- 177 J/kg
- Mixed-layer CIN
- -195 J/kg
- Mixed-layer LCL
- 1013 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -94 m²/s²
- 0-3 km storm-relative helicity
- 40 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted.
085
WWUS83 KMPX 091749
SPSMPX
Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
1249 PM CDT Sun Aug 9 2020
MNZ060>063-WIZ023-091830-
Anoka-Washington-Hennepin-Ramsey-St. Croix-
1249 PM CDT Sun Aug 9 2020
...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL HENNEPIN...
SOUTHEASTERN ANOKA...WASHINGTON...RAMSEY AND NORTHWESTERN ST. CROIX
COUNTIES...
At 1249 PM CDT, a strong thunderstorm was located over Roseville, or
near Minneapolis, moving northeast at 35 mph.
Winds in excess of 30 mph are possible with this storm.
Locations impacted include...
Minneapolis, St. Paul, Brooklyn Park, Woodbury, Coon Rapids, Blaine,
St. Louis Park, Maplewood, Richfield, Roseville, Brooklyn Center and
Oakdale.
This includes Interstate 94 in Wisconsin between mile markers 1 and
2.
Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.
LAT...LON 4530 9275 4523 9276 4521 9273 4497 9268
4491 9304 4492 9313 4490 9315 4488 9329
4510 9341 4527 9288
TIME...MOT...LOC 1749Z 247DEG 30KT 4500 9318
$$
ETAThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 9, 2:57 AM CDT | Special Weather Statement | MPX | Chippewa, Lac qui Parle, Swift, Yellow Medicine | 63 min |
| Aug 9, 3:54 AM CDT | Special Weather Statement | MPX | Blue Earth, Brown, Faribault, Martin, Watonwan | 66 min |
| Aug 9, 9:50 AM CDT | Special Weather Statement | MPX | Freeborn | 25 min |
| Aug 9, 9:58 AM CDT | Special Weather Statement | MPX | Steele | 17 min |
| Aug 9, 10:00 AM CDT | Special Weather Statement | MPX | Goodhue | 45 min |
| Aug 9, 11:25 AM CDT | Special Weather Statement | MPX | Carver, McLeod | 35 min |
| Aug 9, 11:53 AM CDT | Special Weather Statement | MPX | Hennepin | 52 min |
Nearby
Special Weather Statements in Minnesota, 2020Every special weather statement in 2020
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.