Alert archive / Minnesota / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 49, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 21, 2017, 6:02 PM CDT for Becker County, Clay County, Minnesota. It was in force for 43 min. 2 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
- Jun 21, 2017, 6:02 PM CDT (23:02 UTC)
- Expired
- Jun 21, 2017, 6:45 PM CDT
- In force
- 43 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties Becker County, MN, Clay County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 119 km from the middle of the area, began a volume at 23:01 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 |
|---|---|---|---|
| Jun 21, 6:15 PM CDT | HAIL 1 | 4 Ene Hawley, MN | LOTS OF DIME TO QUARTER SIZED HAIL. |
| Jun 21, 6:22 PM CDT | HAIL 1 | 4 Nnw Lake Park, MN |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 21, 5:08 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Aberdeen, SD (KABR), launched 12:00Z, 11.0 hours before the alert went out and 281 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1956 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 241 m²/s²
- 0-3 km storm-relative helicity
- 346 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
931
WUUS53 KFGF 212302
SVRFGF
MNC005-027-212345-
/O.NEW.KFGF.SV.W.0049.170621T2302Z-170621T2345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Eastern ND/Grand Forks ND
602 PM CDT WED JUN 21 2017
The National Weather Service in Grand Forks has issued a
* Severe Thunderstorm Warning for...
Southeastern Clay County in northwestern Minnesota...
Western Becker County in northwestern Minnesota...
* Until 645 PM CDT.
* At 602 PM CDT, a severe thunderstorm was located over Muskoda, or
18 miles east of Fargo, moving east at 55 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* This severe thunderstorm will be near...
Hawley around 610 PM CDT.
Dale around 615 PM CDT.
Lake Park around 620 PM CDT.
Westbury around 630 PM CDT.
Callaway and Richwood around 635 PM CDT.
This includes Interstate 94 in Minnesota between mile markers 19 and
20.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4669 9647 4689 9658 4714 9555 4689 9543
TIME...MOT...LOC 2302Z 253DEG 46KT 4683 9644
HAIL...1.25IN
WIND...60MPH
$$
dtr2 follow-up statements
348
WWUS53 KFGF 212325
SVSFGF
Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
625 PM CDT WED JUN 21 2017
MNC027-212334-
/O.CAN.KFGF.SV.W.0049.000000T0000Z-170621T2345Z/
Clay MN-
625 PM CDT WED JUN 21 2017
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CLAY COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A severe thunderstorm watch remains in effect until 1000 PM CDT for
northwestern Minnesota.
LAT...LON 4675 9615 4699 9617 4714 9555 4689 9543
TIME...MOT...LOC 2324Z 253DEG 46KT 4691 9603
$$
MNC005-212345-
/O.CON.KFGF.SV.W.0049.000000T0000Z-170621T2345Z/
Becker MN-
625 PM CDT WED JUN 21 2017
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR WESTERN BECKER COUNTY...
At 624 PM CDT, a severe thunderstorm was located near Lake Park, or
11 miles northwest of Detroit Lakes, moving east at 55 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
This severe storm will be near...
Westbury around 630 PM CDT.
Callaway and Richwood around 635 PM CDT.
Southwestern Many Point Lake and Height Of Land Lake around 645 PM
CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4675 9615 4699 9617 4714 9555 4689 9543
TIME...MOT...LOC 2324Z 253DEG 46KT 4691 9603
HAIL...1.25IN
WIND...60MPH
$$
dtr217
WWUS53 KFGF 212344
SVSFGF
Severe Weather Statement
National Weather Service Eastern ND/Grand Forks ND
644 PM CDT WED JUN 21 2017
MNC005-212353-
/O.EXP.KFGF.SV.W.0049.000000T0000Z-170621T2345Z/
Becker MN-
644 PM CDT WED JUN 21 2017
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN BECKER COUNTY WILL
EXPIRE AT 645 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore the warning will be allowed to expire.
However hail up to nickels is still possible in the White Earth
area.
A severe thunderstorm watch remains in effect until 1000 PM CDT for
northwestern Minnesota.
LAT...LON 4675 9615 4699 9617 4714 9555 4689 9543
TIME...MOT...LOC 2343Z 253DEG 46KT 4698 9570
$$
dtrThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 5:31 PM CDT | Special Weather Statement | FGF | Clay | 29 min |
| Jun 21, 5:46 PM CDT | Special Weather Statement | FGF | Wilkin | 44 min |
| Jun 21, 6:06 PM CDT | Special Weather Statement | FGF | Red Lake | 24 min |
| Jun 21, 6:21 PM CDT | Tornado Warning | FGF | Otter Tail, Wilkin | 24 min |
| Jun 21, 6:30 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Clearwater, Polk, Red Lake | 60 min |
| Jun 21, 6:41 PM CDT | Tornado Warning | FGF | Otter Tail, Wilkin | 49 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2017Every severe thunderstorm warning in 2017
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.