Alert archive / Minnesota / Special Weather Statements in 2021

Special Weather Statement, NWS Duluth, MN

April 5, 2021Carlton County, Minnesota

NWS Duluth, MN issued this special weather statement at Apr 5, 2021, 11:30 PM CDT for Carlton County, Minnesota. It was in force for 15 min. 5 reports 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: Apr 5, 2021, 11:30 PM CDT (04:30 UTC)
Expired: Apr 5, 2021, 11:45 PM CDT
In force: 15 min
Issued by: NWS Duluth, MN

County Carlton County, MN

The radar

The Duluth radar (KDLH), 18 km from the middle of the area, began a volume at 04:32 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
Apr 5, 11:40 PM CDT	HAIL 0.75	2 Wsw Cloquet, MN	SPOTTER REPORTS AT LEAST NICKEL SIZE HAIL COVERING THE GROUND.
Apr 5, 11:40 PM CDT	HAIL 0.88	2 Wsw Cloquet, MN	CORRECTS PREVIOUS HAIL REPORT FROM 2 WSW CLOQUET. SPOTTER REPORTS AT LEAST NICKEL SIZE HAIL COVERING THE GROUND.
Apr 5, 11:43 PM CDT	HAIL 0.5	Proctor, MN
Apr 5, 11:43 PM CDT	HAIL 0.88	Cloquet, MN	REPORT FROM SOCIAL MEDIA WITH IMAGES.
Apr 5, 11:45 PM CDT	HAIL 1.25	1 Ene Cloquet, MN	SOCIAL MEDIA REPORT WITH IMAGE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

International Fa, MN (KINL), launched 00:00Z, 4.5 hours before the alert went out and 222 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3022 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 85 m²/s²
0-3 km storm-relative helicity: 220 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

133 
WWUS83 KDLH 060430
SPSDLH

Special Weather Statement
National Weather Service Duluth MN
1130 PM CDT Mon Apr 5 2021

MNZ037-060445-
Carlton/South St. Louis-
1130 PM CDT Mon Apr 5 2021

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHEASTERN CARLTON 
AND EXTREME SOUTHEASTERN ST. LOUIS COUNTIES...

At 1129 PM CDT, strong thunderstorms were along a line extending from
near Mahtowa, to Scanlon, and moving east at 20 mph.

Wind gusts up to 40 mph, penny size hail, and occasional cloud to
ground lightning can be expected with these storms.

These storms will be near...
  Scanlon, Carlton, Wrenshall and Thomson around 1135 PM CDT.
  Proctor around 1145 PM CDT.

Other locations impacted by these storms include Jay Cooke State
Park, Cody, Norton Park, Esko, Billings Park, Morgan Park, Lincoln
Park, Irving, Denfeld and Spirit Valley.

Seek shelter inside a sturdy building and away from windows until
these storms pass. Get off area lakes and seek shelter on shore in a
sturdy shelter or a hard topped vehicle.

LAT...LON 4660 9283 4675 9240 4677 9202 4674 9209
      4674 9212 4672 9213 4670 9217 4671 9219
      4669 9219 4666 9227 4666 9228 4660 9239
TIME...MOT...LOC 0429Z 263DEG 18KT 4664 9265 4672 9240 

$$

Huyck

The office that day

Everything else NWS Duluth, MN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 5, 10:16 PM CDT	Special Weather Statement	DLH	Pine	14 min
Apr 5, 10:29 PM CDT	Special Weather Statement	DLH	Pine	16 min
Apr 5, 10:45 PM CDT	Special Weather Statement	DLH	Pine	15 min
Apr 5, 11:00 PM CDT	Special Weather Statement	DLH	Pine	15 min
Apr 5, 11:14 PM CDT	Special Weather Statement	DLH	Pine	16 min
Apr 5, 11:33 PM CDT	Special Weather Statement	DLH	Carlton	12 min
Apr 5, 11:44 PM CDT	Special Weather Statement	DLH	Carlton	16 min
Apr 5, 11:46 PM CDT	Special Weather Statement	DLH	Carlton	14 min
Apr 5, 11:53 PM CDT	Special Weather Statement	DLH	Aitkin	22 min
Apr 5, 11:59 PM CDT	Special Marine Warning	DLH		31 min
Apr 6, 12:17 AM CDT	Special Marine Warning	DLH		28 min
Apr 6, 2:25 AM CDT	Special Weather Statement	DLH	Carlton	20 min
Apr 6, 2:51 AM CDT	Special Weather Statement	DLH	Carlton	24 min
Apr 6, 8:47 AM CDT	Small Craft Advisory	DLH		3 hr
Apr 6, 1:50 PM CDT	Gale Warning	DLH		47 hr
Apr 5, 7:12 PM CDT	Special Weather Statement	DLH	Ashland	18 min
Apr 5, 7:15 PM CDT	Special Weather Statement	DLH	Sawyer	15 min
Apr 5, 7:29 PM CDT	Special Weather Statement	DLH	Ashland	16 min
Apr 5, 7:44 PM CDT	Special Weather Statement	DLH	Ashland	16 min
Apr 5, 7:59 PM CDT	Special Weather Statement	DLH	Iron	16 min
Apr 5, 8:02 PM CDT	Special Weather Statement	DLH	Douglas	13 min
Apr 5, 8:16 PM CDT	Special Weather Statement	DLH	Douglas	14 min
Apr 5, 9:18 PM CDT	Special Weather Statement	DLH	Iron	12 min
Apr 5, 9:42 PM CDT	Special Weather Statement	DLH	Sawyer	18 min
Apr 5, 9:54 PM CDT	Special Weather Statement	DLH	Washburn	21 min
Apr 5, 10:06 PM CDT	Special Weather Statement	DLH	Sawyer	9 min
Apr 5, 10:17 PM CDT	Special Weather Statement	DLH	Sawyer	13 min
Apr 5, 11:13 PM CDT	Special Weather Statement	DLH	Douglas	17 min
Apr 5, 11:35 PM CDT	Special Weather Statement	DLH	Douglas	10 min
Apr 5, 11:47 PM CDT	Special Weather Statement	DLH	Douglas	13 min
Apr 6, 12:02 AM CDT	Special Weather Statement	DLH	Douglas	13 min
Apr 6, 3:18 AM CDT	Special Weather Statement	DLH	Douglas	27 min

Nearby

Special Weather Statements in Minnesota, 2021 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.