Alert archive / Minnesota / Special Weather Statements in 2021
Special Weather Statement, NWS Twin Cities, MN
NWS Twin Cities, MN issued this special weather statement at Jul 24, 2021, 1:46 AM CDT for Anoka County, Minnesota. It was in force for 44 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 24, 2021, 1:46 AM CDT (06:46 UTC)
- Expired
- Jul 24, 2021, 2:30 AM CDT
- In force
- 44 min
- Issued by
- NWS Twin Cities, MN
County Anoka County, MN
The radar
The Minneapolis radar (KMPX), 70 km from the middle of the area, began a volume at 06:49 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, 6.8 hours before the alert went out and 72 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
- 2540 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 1098 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 124 m²/s²
- 0-3 km storm-relative helicity
- 143 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.4
The text
As transmitted.
861
WWUS83 KMPX 240646
SPSMPX
Special Weather Statement
National Weather Service Twin Cities/Chanhassen MN
146 AM CDT Sat Jul 24 2021
MNZ053-061-063-240730-
Anoka-Washington-Chisago-
146 AM CDT Sat Jul 24 2021
...A STRONG THUNDERSTORM WILL AFFECT SOUTH CENTRAL CHISAGO...
NORTHEASTERN ANOKA AND NORTHERN WASHINGTON COUNTIES...
At 146 AM CDT, a strong thunderstorm was located over Ham Lake, or 20
miles south of Cambridge, moving east at 30 mph.
Winds in excess of 40 mph and half inch hail are possible with this
storm.
Locations impacted include...
Coon Rapids, Blaine, Andover, Lino Lakes, Forest Lake, Ham Lake,
Hugo, East Bethel, Chisago City, Lindstrom, Scandia and Stacy.
LAT...LON 4529 9275 4521 9275 4519 9278 4520 9327
4528 9331 4548 9282
TIME...MOT...LOC 0646Z 255DEG 27KT 4525 9317
$$
TDHThe office that day
Everything else NWS Twin Cities, MN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 12:03 AM CDT | Special Weather Statement | MPX | Stevens | 27 min |
| Jul 24, 12:36 AM CDT | Special Weather Statement | MPX | Swift | 24 min |
| Jul 24, 1:07 AM CDT | Special Weather Statement | MPX | Pope | 23 min |
| Jul 24, 1:09 AM CDT | Special Weather Statement | MPX | Douglas | 36 min |
| Jul 24, 1:37 AM CDT | Severe Thunderstorm Warning | MPX | Morrison, Stearns, Todd | 38 min |
| Jul 24, 1:50 AM CDT | Special Weather Statement | MPX | Douglas, Todd | 40 min |
| Jul 24, 2:03 AM CDT | Severe Thunderstorm Warning | MPX | Chisago, Washington | 25 min |
| Jul 24, 2:16 AM CDT | Special Weather Statement | MPX | Benton, Mille Lacs | 44 min |
| Jul 24, 2:19 AM CDT | Special Weather Statement | MPX | Morrison | 26 min |
| Jul 24, 2:27 AM CDT | Special Weather Statement | MPX | Chisago, Isanti | 33 min |
| Jul 24, 3:06 AM CDT | Special Weather Statement | MPX | Kanabec | 24 min |
| Jul 24, 2:32 AM CDT | Special Weather Statement | MPX | Polk | 43 min |
Nearby
Special Weather Statements in Minnesota, 2021Every special weather statement in 2021
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.