Alert archive / North Dakota / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 41, NWS Grand Forks, ND
NWS Grand Forks, ND issued this severe thunderstorm warning at Jul 2, 2012, 10:57 AM CDT for Cavalier County, Towner County, North Dakota. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 2, 2012, 10:57 AM CDT (15:57 UTC)
- Expired
- Jul 2, 2012, 11:29 AM CDT
- In force
- 32 min
- Issued by
- NWS Grand Forks, ND
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 50.0 mph
Counties Cavalier County, ND, Towner County, ND
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 12:00Z, 4.0 hours before the alert went out and 241 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
- 2397 J/kg
- Mixed-layer CIN
- -360 J/kg
- Mixed-layer LCL
- 1384 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 115 m²/s²
- 0-3 km storm-relative helicity
- 168 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
807
WUUS53 KFGF 021557
SVRFGF
NDC019-095-021645-
/O.NEW.KFGF.SV.W.0041.120702T1557Z-120702T1645Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1057 AM CDT MON JUL 2 2012
THE NATIONAL WEATHER SERVICE IN GRAND FORKS HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
WESTERN CAVALIER COUNTY IN NORTHEAST NORTH DAKOTA...
TOWNER COUNTY IN NORTHEAST NORTH DAKOTA...
* UNTIL 1145 AM CDT
* AT 1052 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THE
STORM WAS LOCATED 6 MILES SOUTHWEST OF CONSIDINE...OR 37 MILES
NORTHWEST OF DEVILS LAKE...MOVING TO THE NORTHEAST AT 40 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
CANDO AROUND 1105 AM CDT.
ARNDT AROUND 1110 AM CDT.
ROCKLAKE AND EGELAND AROUND 1115 AM CDT.
NEWVILLE AROUND 1120 AM CDT.
THEREAFTER SOME OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM
INCLUDE CALIO...MUNICH...ALSEN AND HANNAH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.
&&
LAT...LON 4881 9952 4900 9870 4864 9853 4854 9893
4855 9897 4853 9898 4840 9948 4873 9949
4872 9952
TIME...MOT...LOC 1557Z 246DEG 33KT 4854 9934
WIND...HAIL <50MPH 1.00IN
$$
VG2 follow-up statements
002
WWUS53 KFGF 021610
SVSFGF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1110 AM CDT MON JUL 2 2012
NDC019-095-021645-
/O.CON.KFGF.SV.W.0041.000000T0000Z-120702T1645Z/
CAVALIER ND-TOWNER ND-
1110 AM CDT MON JUL 2 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR CENTRAL TOWNER
AND WESTERN CAVALIER COUNTIES IN NORTHEAST NORTH DAKOTA UNTIL 1145 AM
CDT...
AT 1106 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL. THE
STORM WAS LOCATED NEAR CONSIDINE...OR 38 MILES NORTHWEST OF DEVILS
LAKE...MOVING TO THE NORTHEAST AT 35 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
ARNDT AROUND 1115 AM CDT.
ROCKLAKE AND EGELAND AROUND 1120 AM CDT.
NEWVILLE AROUND 1125 AM CDT.
CALIO AROUND 1135 AM CDT.
THEREAFTER SOME OTHER LOCATIONS IMPACTED BY THE SEVERE THUNDERSTORM
INCLUDE HANNAH...CALVIN...ALSEN...MUNICH AND CLYDE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
REMEMBER SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES WITH LITTLE OR NO ADVANCE WARNING.
&&
LAT...LON 4881 9952 4900 9870 4864 9853 4854 9893
4855 9897 4853 9898 4840 9948 4873 9949
4872 9952
TIME...MOT...LOC 1610Z 242DEG 30KT 4860 9925
WIND...HAIL <50MPH 1.00IN
$$
VG129
WWUS53 KFGF 021629
SVSFGF
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE EASTERN ND/GRAND FORKS ND
1129 AM CDT MON JUL 2 2012
NDC019-095-021639-
/O.CAN.KFGF.SV.W.0041.000000T0000Z-120702T1645Z/
CAVALIER ND-TOWNER ND-
1129 AM CDT MON JUL 2 2012
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL TOWNER AND WESTERN
CAVALIER COUNTIES IN NORTHEAST NORTH DAKOTA IS CANCELLED...
THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
LAT...LON 4881 9952 4900 9870 4864 9853 4854 9893
4855 9897 4853 9898 4840 9948 4873 9949
4872 9952
TIME...MOT...LOC 1629Z 242DEG 30KT 4867 9904
$$
VGThe 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 | Barnes, Cass, Grand Forks, Pembina, Ransom, Richland and 4 more | 15 hr |
| Jul 2, 10:54 AM CDT | Special Weather Statement | FGF | Towner | 51 min |
| Jul 2, 12:12 PM CDT | Special Weather Statement | FGF | Pembina | 48 min |
| Jul 2, 12:29 PM CDT | Severe Thunderstorm Warning | FGF | Cavalier, Pembina | 31 min |
| Jul 2, 1:23 PM CDT | Special Weather Statement | FGF | Pembina | 37 min |
| Jul 2, 1:40 PM CDT | Severe Thunderstorm Warning | FGF | Pembina | 37 min |
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; the sounding from the Mesonet's radiosonde archive.