Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 48, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 2, 2012, 6:10 PM CDT for 5 counties in Minnesota. It was in force for 65 min. 3 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
- Jul 2, 2012, 6:10 PM CDT (23:10 UTC)
- Expired
- Jul 2, 2012, 7:15 PM CDT
- In force
- 65 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 70.0 mph
Counties Becker County, MN, Clearwater County, MN, Mahnomen County, MN, Norman County, MN, Polk County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 134 km from the middle of the area, began a volume at 23:11 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 |
|---|---|---|---|
| Jul 2, 6:10 PM CDT | HAIL 1 | 5 E Bejou, MN | PUBLIC REPORT POSTED ON KVLY FACEBOOK SITE |
| Jul 2, 6:41 PM CDT | TSTM WND DMG | 10 S Bagley, MN | MULTIPLE 5 TO 6 INCH TREES DOWN ACROSS HIGH 92 TWO MILES SOUTHWEST OF LAKE MINERVA. RECORDED WIND GUSTS 45 MPH. |
| Jul 2, 7:08 PM CDT | HAIL 1 | 6 Sw Snellman, 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 |
|---|---|---|---|
| Jul 2, 11:43 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
International Fa, MN (KINL), launched 12:00Z, 11.2 hours before the alert went out and 214 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
- 3219 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 897 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 88 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.5
The text
As transmitted, in the capitals the NWS used until 2016.
065 WUUS53 KFGF 022310 SVRFGF MNC005-029-087-107-119-030015- /O.NEW.KFGF.SV.W.0048.120702T2310Z-120703T0015Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 610 PM CDT MON JUL 2 2012 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN BECKER COUNTY IN NORTHWEST MINNESOTA... SOUTHERN CLEARWATER COUNTY IN NORTHWEST MINNESOTA... MAHNOMEN COUNTY IN NORTHWEST MINNESOTA... SOUTHEASTERN NORMAN COUNTY IN NORTHWEST MINNESOTA... SOUTHEASTERN POLK COUNTY IN NORTHWEST MINNESOTA... * UNTIL 715 PM CDT * AT 607 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 70 MPH. THE STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 5 MILES SOUTHWEST OF FOSSTON TO 7 MILES SOUTHEAST OF FLOM...MOVING TO THE EAST AT 20 MPH. * SEVERE THUNDERSTORMS WILL BE NEAR... WAUBUN AROUND 615 PM CDT. FOSSTON AROUND 620 PM CDT. OGEMA AND BEAULIEU AROUND 625 PM CDT. CALLAWAY AROUND 630 PM CDT. THEREAFTER SOME OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORMS INCLUDE WHITE EARTH...RICHWOOD...PINE BEND...CLEARBROOK...ROY LAKE AND TULABY LAKE. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. THE STORMS HAVE A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS. TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THE STORMS...AND MAY LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS. && LAT...LON 4775 9521 4674 9521 4702 9618 4761 9596 TIME...MOT...LOC 2310Z 284DEG 19KT 4754 9583 4708 9604 WIND...HAIL 70MPH 1.00IN $$ HOPKINS
2 follow-up statements
925
WWUS53 KFGF 022338
SVSFGF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
638 PM CDT MON JUL 2 2012
MNC107-022348-
/O.CAN.KFGF.SV.W.0048.000000T0000Z-120703T0015Z/
NORMAN MN-
638 PM CDT MON JUL 2 2012
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN NORMAN COUNTY IN
NORTHWEST MINNESOTA IS CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE
WARNED AREA.
LAT...LON 4695 9592 4720 9577 4762 9588 4775 9521
4674 9521
TIME...MOT...LOC 2338Z 284DEG 19KT 4750 9552 4724 9551
4702 9563
$$
MNC005-029-087-119-030015-
/O.CON.KFGF.SV.W.0048.000000T0000Z-120703T0015Z/
MAHNOMEN MN-BECKER MN-CLEARWATER MN-POLK MN-
638 PM CDT MON JUL 2 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
POLK...SOUTHERN CLEARWATER...EASTERN BECKER AND EASTERN MAHNOMEN
COUNTIES IN NORTHWEST MINNESOTA UNTIL 715 PM CDT...
AT 634 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 70 MPH. THE STORMS WERE
LOCATED ALONG A LINE EXTENDING FROM NEAR EBRO TO 4 MILES EAST OF
NAYTAHWAUSH TO 7 MILES SOUTHWEST OF MANY POINT LAKE...MOVING TO THE
EAST AT 20 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
MANY POINT LAKE...LOWER RICE LAKE AND HEIGHT OF LAND LAKE AROUND
645 PM CDT.
BAGLEY AND LONG LOST LAKE AROUND 650 PM CDT.
ZERKEL AROUND 655 PM CDT.
LEONARD AND BAD MEDICINE LAKE AROUND 700 PM CDT.
THEREAFTER SOME OTHER LOCATIONS IMPACTED BY SEVERE THUNDERSTORMS
INCLUDE UPPER RICE LAKE...TOAD LAKE...SNELLMAN...SHEVLIN...PONSFORD
AND WOLF LAKE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.
THE STORMS HAVE A HISTORY OF PRODUCING LARGE HAIL. SEEK SHELTER NOW
INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
LEAD TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
LAT...LON 4695 9592 4720 9577 4762 9588 4775 9521
4674 9521
TIME...MOT...LOC 2338Z 284DEG 19KT 4750 9552 4724 9551
4702 9563
WIND...HAIL 70MPH 1.00IN
$$
HOPKINS320
WWUS53 KFGF 022358
SVSFGF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
658 PM CDT MON JUL 2 2012
MNC087-030007-
/O.CAN.KFGF.SV.W.0048.000000T0000Z-120703T0015Z/
MAHNOMEN MN-
658 PM CDT MON JUL 2 2012
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN MAHNOMEN COUNTY IN
NORTHWEST MINNESOTA IS CANCELLED...
THE LINE OF STORMS WHICH PROMPTED THE WARNING HAVE MOVED OUT OF THE
WARNED AREA.
LAT...LON 4674 9521 4689 9571 4715 9557 4715 9555
4724 9552 4740 9556 4750 9555 4751 9558
4767 9562 4775 9522
TIME...MOT...LOC 2357Z 284DEG 19KT 4747 9537 4721 9537
4700 9549
$$
MNC005-029-119-030015-
/O.CON.KFGF.SV.W.0048.000000T0000Z-120703T0015Z/
BECKER MN-CLEARWATER MN-POLK MN-
658 PM CDT MON JUL 2 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EXTREME
SOUTHEASTERN POLK...SOUTHERN CLEARWATER AND EASTERN BECKER COUNTIES
IN NORTHWEST MINNESOTA UNTIL 715 PM CDT...
AT 653 PM CDT...WEATHER SPOTTERS REPORTED A LINE OF SEVERE
THUNDERSTORMS PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN
EXCESS OF 70 MPH. THE STORMS WERE LOCATED ALONG A LINE EXTENDING
FROM 3 MILES SOUTH OF BAGLEY TO 2 MILES NORTHEAST OF LONG LOST LAKE
TO 5 MILES SOUTH OF MANY POINT LAKE...MOVING TO THE EAST AT 20 MPH.
SEVERE THUNDERSTORMS WILL BE NEAR...
UPPER RICE LAKE...TOAD LAKE AND LEONARD AROUND 705 PM CDT.
SNELLMAN...SHEVLIN AND PONSFORD AROUND 710 PM CDT.
WOLF LAKE...TWO INLETS AND OSAGE AROUND 715 PM CDT.
THEREAFTER SOME OTHER LOCATIONS IMPACTED BY SEVERE THUNDERSTORMS
INCLUDE MIDWAY AND ALIDA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.
THE STORMS HAVE A HISTORY OF PRODUCING DESTRUCTIVE WINDS AND LARGE
HAIL. SEEK SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM
WINDOWS. SPOTTERS HAVE REPORTED MANY FIVE TO SIX INCH DIAMETER TREES
DOWN AND OVER COUNTY ROAD 92 2 MILES NORTH OF ZERKEL.
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY! LIGHTNING IS ONE OF NATURE'S LEADING KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
&&
LAT...LON 4674 9521 4689 9571 4715 9557 4715 9555
4724 9552 4740 9556 4750 9555 4751 9558
4767 9562 4775 9522
TIME...MOT...LOC 2357Z 284DEG 19KT 4747 9537 4721 9537
4700 9549
WIND...HAIL 70MPH 1.00IN
$$
HOPKINSThe office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 4:15 AM CDT | Heat Advisory | FGF | Becker, Clay, Clearwater, Grant, Kittson, Mahnomen and 8 more | 15 hr |
| Jul 2, 1:36 PM CDT | Severe Thunderstorm Warning | FGF | Roseau | 39 min |
| Jul 2, 1:40 PM CDT | Severe Thunderstorm Warning | FGF | Kittson | 37 min |
| Jul 2, 2:03 PM CDT | Special Weather Statement | FGF | Lake of the Woods | 42 min |
| Jul 2, 3:10 PM CDT | Severe Thunderstorm Warning | FGF | Beltrami, Lake of the Woods | 35 min |
| Jul 2, 5:22 PM CDT | Severe Thunderstorm Warning | FGF | Norman | 53 min |
| Jul 2, 5:36 PM CDT | Severe Thunderstorm Warning | FGF | Clearwater, Mahnomen, Polk | 54 min |
| Jul 2, 5:53 PM CDT | Special Weather Statement | FGF | Becker | 67 min |
| Jul 2, 6:30 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Beltrami, Clearwater, Hubbard, Wadena | 60 min |
| Jul 2, 6:33 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Hubbard, Otter Tail, Wadena | 57 min |
Nearby
Severe Thunderstorm Warnings in Minnesota, 2012Every severe thunderstorm warning in 2012
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.