Alert archive / Minnesota / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 13, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jun 7, 2015, 4:38 PM CDT for Mahnomen County, Minnesota. It was in force for 29 min. 1 report 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 7, 2015, 4:38 PM CDT (21:38 UTC)
- Expired
- Jun 7, 2015, 5:07 PM CDT
- In force
- 29 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
County Mahnomen County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 114 km from the middle of the area, began a volume at 21:41 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 7, 5:00 PM CDT | FUNNEL CLOUD | 4 Sw Naytahwaush, MN | PHOTO AND REPORT POSTED TO SOCIAL MEDIA. |
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 12:00Z, 9.6 hours before the alert went out and 233 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
- 5 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 469 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- -78 m²/s²
- 0-3 km storm-relative helicity
- -48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
792
WUUS53 KFGF 072138
SVRFGF
MNC087-072245-
/O.NEW.KFGF.SV.W.0013.150607T2138Z-150607T2245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
438 PM CDT SUN JUN 7 2015
THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CENTRAL MAHNOMEN COUNTY IN NORTHWESTERN MINNESOTA...
* UNTIL 545 PM CDT
* AT 438 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER BEJOU...OR
42 MILES NORTH OF DETROIT LAKES...MOVING SOUTHEAST AT 25 MPH.
HAZARD...QUARTER SIZE HAIL.
SOURCE...RADAR INDICATED.
IMPACT...DAMAGE TO VEHICLES IS EXPECTED.
* THIS SEVERE THUNDERSTORM WILL BE NEAR...
MAHNOMEN AROUND 450 PM CDT.
BEAULIEU AROUND 500 PM CDT.
NAYTAHWAUSH AROUND 525 PM CDT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.
&&
LAT...LON 4729 9555 4715 9580 4740 9607 4741 9606
4749 9597
TIME...MOT...LOC 2138Z 313DEG 22KT 4742 9599
HAIL...1.00IN
WIND...<50MPH
$$
DK2 follow-up statements
597 WWUS53 KFGF 072154 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 454 PM CDT SUN JUN 7 2015 MNC087-072245- /O.CON.KFGF.SV.W.0013.000000T0000Z-150607T2245Z/ MAHNOMEN MN- 454 PM CDT SUN JUN 7 2015 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR CENTRAL MAHNOMEN COUNTY... AT 454 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR BEAULIEU...OR 37 MILES NORTH OF DETROIT LAKES...MOVING SOUTHEAST AT 25 MPH. HAZARD...QUARTER SIZE HAIL. SOURCE...RADAR INDICATED. IMPACT...DAMAGE TO VEHICLES IS EXPECTED. THIS SEVERE STORM WILL BE NEAR... BEAULIEU AROUND 500 PM CDT. NAYTAHWAUSH AROUND 525 PM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A BUILDING. && LAT...LON 4729 9555 4715 9580 4732 9598 4744 9587 TIME...MOT...LOC 2154Z 313DEG 22KT 4735 9588 HAIL...1.00IN WIND...<50MPH $$ DK
264
WWUS53 KFGF 072207
SVSFGF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
507 PM CDT SUN JUN 7 2015
MNC087-072217-
/O.CAN.KFGF.SV.W.0013.000000T0000Z-150607T2245Z/
MAHNOMEN MN-
507 PM CDT SUN JUN 7 2015
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL MAHNOMEN COUNTY IS
CANCELLED...
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 HAS BEEN CANCELLED.
LAT...LON 4729 9555 4715 9580 4732 9598 4744 9587
TIME...MOT...LOC 2205Z 313DEG 22KT 4729 9579
$$
DKThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 7:09 PM CDT | Special Weather Statement | FGF | Otter Tail | 66 min |
| Jun 6, 7:39 PM CDT | Special Weather Statement | FGF | Otter Tail | 36 min |
| Jun 6, 11:21 PM CDT | Dense Fog Advisory | FGF | Kittson, Marshall, Polk | 8 hr |
| Jun 7, 1:32 PM CDT | Special Weather Statement | FGF | Marshall | 58 min |
| Jun 7, 1:45 PM CDT | Severe Thunderstorm Warning | FGF | Marshall, Polk | 60 min |
| Jun 7, 1:57 PM CDT | Severe Thunderstorm Warning | FGF | Kittson | 63 min |
| Jun 7, 2:13 PM CDT | Tornado Warning | FGF | Marshall, Polk | 47 min |
| Jun 7, 2:33 PM CDT | Severe Thunderstorm Warning | FGF | Kittson, Marshall | 29 min |
| Jun 7, 3:13 PM CDT | Severe Thunderstorm Warning | FGF | Norman, Polk | 62 min |
| Jun 7, 3:39 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Lake of the Woods, Roseau | 32 min |
| Jun 7, 3:48 PM CDT | Severe Thunderstorm Warning | FGF | Polk, Red Lake | 42 min |
| Jun 7, 4:39 PM CDT | Severe Thunderstorm Warning | FGF | Polk | 36 min |
| Jun 7, 5:59 PM CDT | Special Weather Statement | FGF | Hubbard | 61 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2015Every severe thunderstorm warning in 2015
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.