Alert archive / Minnesota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 88, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 22, 2012, 7:31 PM CDT for Becker County, Clay County, Otter Tail County, Minnesota. It was in force for 29 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
- Jul 22, 2012, 7:31 PM CDT (00:31 UTC)
- Expired
- Jul 22, 2012, 8:00 PM CDT
- In force
- 29 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Becker County, MN, Clay County, MN, Otter Tail County, MN
The radar
The Fargo/Grand Forks radar (KMVX), 146 km from the middle of the area, began a volume at 00:30 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 22, 7:35 PM CDT | HAIL 1 | 4 Se Rollag, MN | |
| Jul 22, 7:45 PM CDT | TSTM WND DMG | 2 Wnw Cormorant, MN | SEVERAL LARGE TREES WERE EITHER SNAPPED OR UPROOTED ALONG THE NORTH SHORE OF LAKE IDA. TREES VARIED FROM 1 TO 2.5 FOOT IN DIAMETER. |
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 22, 3:25 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Minneapolis, MN (KMPX), launched 00:00Z, 0.5 hours before the alert went out and 268 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
- 1224 J/kg
- Mixed-layer CIN
- -280 J/kg
- Mixed-layer LCL
- 1320 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 23 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
418 WUUS53 KFGF 230031 SVRFGF MNC005-027-111-230100- /O.NEW.KFGF.SV.W.0088.120723T0031Z-120723T0100Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 731 PM CDT SUN JUL 22 2012 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN BECKER COUNTY IN NORTHWEST MINNESOTA... SOUTHEASTERN CLAY COUNTY IN NORTHWEST MINNESOTA... NORTHWESTERN OTTER TAIL COUNTY IN WEST CENTRAL MINNESOTA... * UNTIL 800 PM CDT * AT 726 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THE STORM WAS LOCATED 5 MILES SOUTHWEST OF CORMORANT...OR 17 MILES SOUTHWEST OF DETROIT LAKES...MOVING TO THE EAST AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... DUNVILLA AROUND 740 PM CDT. SHOREHAM AND LAKE LIDA AROUND 745 PM CDT. VERGAS AROUND 755 PM CDT. FRAZEE...DENT AND BIG MCDONALD LAKE AROUND 800 PM CDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. && LAT...LON 4672 9559 4650 9566 4662 9626 4679 9621 TIME...MOT...LOC 0031Z 282DEG 27KT 4668 9610 WIND...HAIL <50MPH 1.00IN $$ VG
2 follow-up statements
825 WWUS53 KFGF 230044 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 744 PM CDT SUN JUL 22 2012 MNC027-230054- /O.CAN.KFGF.SV.W.0088.000000T0000Z-120723T0100Z/ CLAY MN- 744 PM CDT SUN JUL 22 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CLAY COUNTY IN NORTHWEST MINNESOTA IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 4677 9613 4672 9559 4650 9566 4660 9618 TIME...MOT...LOC 0044Z 285DEG 20KT 4666 9602 $$ MNC005-111-230100- /O.CON.KFGF.SV.W.0088.000000T0000Z-120723T0100Z/ OTTER TAIL MN-BECKER MN- 744 PM CDT SUN JUL 22 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHWESTERN BECKER COUNTY IN NORTHWEST MINNESOTA...AND NORTH CENTRAL OTTER TAIL COUNTY IN WEST CENTRAL MINNESOTA UNTIL 800 PM CDT... AT 740 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THE STORM WAS LOCATED NEAR DUNVILLA...OR 14 MILES SOUTHWEST OF DETROIT LAKES...MOVING TO THE EAST AT 25 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... LAKE LIDA AROUND 755 PM CDT. FRAZEE...VERGAS AND STAR LAKE AROUND 800 PM CDT. THEREAFTER SOME OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM INCLUDE DENT AND BIG MCDONALD LAKE. PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. && LAT...LON 4677 9613 4672 9559 4650 9566 4660 9618 TIME...MOT...LOC 0044Z 285DEG 20KT 4666 9602 WIND...HAIL <50MPH 1.00IN $$ VG
197 WWUS53 KFGF 230058 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 758 PM CDT SUN JUL 22 2012 MNC005-111-230108- /O.EXP.KFGF.SV.W.0088.000000T0000Z-120723T0100Z/ OTTER TAIL MN-BECKER MN- 758 PM CDT SUN JUL 22 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN BECKER COUNTY IN NORTHWEST MINNESOTA...AND NORTH CENTRAL OTTER TAIL COUNTY IN WEST CENTRAL MINNESOTA WILL EXPIRE AT 800 PM CDT... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY. LAT...LON 4677 9613 4672 9559 4650 9566 4660 9618 TIME...MOT...LOC 0058Z 285DEG 20KT 4664 9591 $$ VG
The office that day
Everything else NWS Grand Forks, ND issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 7:21 PM CDT | Special Weather Statement | FGF | Becker | 24 min |
| Jul 22, 8:08 PM CDT | Special Weather Statement | FGF | Becker | 67 min |
| Jul 22, 8:15 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Otter Tail | 18 min |
| Jul 22, 8:19 PM CDT | Severe Thunderstorm Warning | FGF | Becker, Hubbard, Wadena | 37 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.