Alert archive / North Dakota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 4, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at May 2, 2012, 11:23 PM CDT for Richland County, Sargent County, North Dakota. It was in force for 39 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
- May 2, 2012, 11:23 PM CDT (04:23 UTC)
- Expired
- May 3, 2012, 12:02 AM CDT
- In force
- 39 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Richland County, ND, Sargent County, ND
The radar
The Aberdeen radar (KABR), 129 km from the middle of the area, began a volume at 04:25 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 |
|---|---|---|---|
| May 2, 11:25 PM CDT | TSTM WND DMG | Cayuga, ND | TREES UPROOTED |
| May 2, 11:55 PM CDT | TSTM WND DMG | 2 N Mantador, ND | TREES UPROOTED |
| May 2, 11:59 PM CDT | TSTM WND DMG | 4 Wnw Great Bend, ND | ABOUT ONE HALF MILE OF POWER POLES WERE SNAPPED NEAR THE INTERSECTION OF CR16 AND CR1. A BARN AND SILO AT A FARMSTEAD WERE HEAVILY DAMAGED. PEAK WINDS ESTIMATED FROM 80 TO 90 MPH. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 4.4 hours before the alert went out and 172 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
- 10 J/kg
- Mixed-layer CIN
- -51 J/kg
- Mixed-layer LCL
- 2487 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 119 m²/s²
- 0-3 km storm-relative helicity
- 170 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
044 WUUS53 KFGF 030423 SVRFGF NDC077-081-030515- /O.NEW.KFGF.SV.W.0004.120503T0423Z-120503T0515Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 1123 PM CDT WED MAY 2 2012 THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHERN RICHLAND COUNTY IN SOUTHEAST NORTH DAKOTA... EASTERN SARGENT COUNTY IN SOUTHEAST NORTH DAKOTA... * UNTIL 1215 AM CDT * AT 1120 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THE STORM WAS LOCATED NEAR CAYUGA...OR 38 MILES WEST OF WAHPETON...MOVING TO THE EAST AT 35 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... LIDGERWOOD AROUND 1140 PM CDT. STILES AROUND 1145 PM CDT. MANTADOR AROUND 1150 PM CDT. HANKINSON AROUND 1155 PM CDT. THEREAFTER SOME OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM INCLUDE GREAT BEND. FOR MOTORISTS ON INTERSTATE 29...THE SEVERE THUNDERSTORM WILL BE BETWEEN...MILE MARKERS 3 AND 17 AROUND MIDNIGHT CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. && LAT...LON 4621 9676 4596 9678 4601 9748 4621 9746 TIME...MOT...LOC 0423Z 275DEG 32KT 4609 9733 WIND...HAIL 60MPH 1.00IN $$ HOPPES
2 follow-up statements
292 WWUS53 KFGF 030435 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 1135 PM CDT WED MAY 2 2012 NDC077-081-030515- /O.CON.KFGF.SV.W.0004.000000T0000Z-120503T0515Z/ SARGENT ND-RICHLAND ND- 1135 PM CDT WED MAY 2 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHERN RICHLAND AND EASTERN SARGENT COUNTIES IN SOUTHEAST NORTH DAKOTA UNTIL 1215 AM CDT... AT 1133 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THE STORM WAS LOCATED 4 MILES NORTHEAST OF GENESEO...OR 31 MILES WEST OF WAHPETON...MOVING TO THE EAST AT 35 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... STILES AROUND 1145 PM CDT. MANTADOR AROUND 1150 PM CDT. HANKINSON AROUND 1155 PM CDT. GREAT BEND AROUND MIDNIGHT CDT. FOR MOTORISTS ON INTERSTATE 29...THE SEVERE THUNDERSTORM WILL BE BETWEEN...MILE MARKERS 3 AND 18 AROUND MIDNIGHT CDT... PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. && LAT...LON 4621 9676 4596 9678 4601 9748 4621 9746 TIME...MOT...LOC 0434Z 275DEG 32KT 4611 9717 $$ HOPPES
474 WWUS53 KFGF 030502 SVSFGF SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND 1202 AM CDT THU MAY 3 2012 NDC077-081-030512- /O.CAN.KFGF.SV.W.0004.000000T0000Z-120503T0515Z/ SARGENT ND-RICHLAND ND- 1202 AM CDT THU MAY 3 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN RICHLAND AND EASTERN SARGENT COUNTIES IN SOUTHEAST NORTH DAKOTA IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE WARNED AREA. LAT...LON 4621 9676 4596 9678 4601 9748 4621 9746 TIME...MOT...LOC 0502Z 275DEG 32KT 4609 9681 $$ HOPPES
Nearby
Severe Thunderstorm Warnings in North Dakota, 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.