Alert archive / North Dakota / Tornado Watches in 2005
Tornado Watch 375
The Storm Prediction Center issued this tornado watch at Jun 1, 2005, 8:50 PM MDT for 29 counties in North Dakota. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 1, 2005, 8:50 PM MDT (02:50 UTC)
- Expired
- Jun 2, 2005, 2:00 AM MDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
All 29 counties
Adams County, ND, Benson County, ND, Bottineau County, ND, Burleigh County, ND, Cavalier County, ND, Eddy County, ND, Emmons County, ND, Foster County, ND, Grant County, ND, Hettinger County, ND, Kidder County, ND, Logan County, ND, McHenry County, ND, McIntosh County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Nelson County, ND, Oliver County, ND, Pierce County, ND, Ramsey County, ND, Rolette County, ND, Sheridan County, ND, Sioux County, ND, Stark County, ND, Stutsman County, ND, Towner County, ND, Ward County, ND, Wells County, ND
The radar
The Bismarck radar (KBIS), 45 km from the middle of the area, began a volume at 02:49 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.
Warnings issued inside it
8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 8:56 PM MDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 32 min |
| Jun 1, 9:03 PM MDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry, Ward | 57 min |
| Jun 1, 9:28 PM MDT | Severe Thunderstorm Warning | BIS | Mercer, Morton, Oliver | 40 min |
| Jun 1, 9:41 PM MDT | Severe Thunderstorm Warning | BIS | McLean | 26 min |
| Jun 1, 10:49 PM MDT | Severe Thunderstorm Warning | BIS | Bottineau | 41 min |
| Jun 1, 11:38 PM MDT | Flash Flood Warning | BIS | Bottineau, McHenry, Renville, Ward | 6 hr |
| Jun 2, 12:26 AM MDT | Severe Thunderstorm Warning | BIS | McHenry, Ward | 34 min |
| Jun 2, 1:09 AM MDT | Severe Thunderstorm Warning | BIS | Bottineau, McHenry | 36 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 2.8 hours before the alert went out and 47 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
- 566 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 1099 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 195 m²/s²
- 0-3 km storm-relative helicity
- 349 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 020252
SEL5
SPC WW 020252
NDZ000-020800-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 375
NWS STORM PREDICTION CENTER NORMAN OK
950 PM CDT WED JUN 1 2005
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
SOUTHWEST...CENTRAL AND NORTHEASTERN NORTH DAKOTA
EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 950 PM
UNTIL 300 AM CDT.
TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 90 STATUTE MILES
EAST AND WEST OF A LINE FROM 65 MILES NORTH NORTHWEST OF DEVILS
LAKE NORTH DAKOTA TO 40 MILES EAST OF LEMMON SOUTH DAKOTA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU5).
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.
OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 374. WATCH NUMBER 374 WILL NOT BE IN EFFECT AFTER 950
PM CDT.
DISCUSSION...EMBEDDED SUPERCELLS EXPECTED TO PERSIST ALONG NNE/SSW
ORIENTED BOUNDARY OVER W CNTRL ND...WHERE LARGE SCALE ASCENT/LOW
LEVEL CONVERGENCE WILL FOCUS DOWNSTREAM FROM NE WY UPPER VORT.
GIVEN STRENGTH OF LOW LEVEL SPEED/DIRECTIONAL SHEAR...POTENTIAL WILL
EXIST FOR ISOLATED TORNADOES IN ADDITION TO HAIL/HIGH WIND AS
VORT-INDUCED COLD POOL NOW IN SW ND CONTINUES NEWD.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 21035.
...CORFIDI
485,0972 455,0992 455,1031 485,1012SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 8:03 PM MDT | Mesoscale Discussion | SPC | Adams, Bottineau, Burke, Burleigh, Dunn, Emmons and 18 more | 57 min |
| Jun 1, 10:39 PM MDT | Mesoscale Discussion | SPC | Benson, Burleigh, Cavalier, Eddy, Emmons, Foster and 17 more | 66 min |
| Jun 2, 12:40 AM MDT | Mesoscale Discussion | SPC | Adams, Benson, Bottineau, Burleigh, Cavalier, Eddy and 23 more | 95 min |
Nearby
Tornado Watches in North Dakota, 2005Every tornado watch in 2005
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; radar from the NEXRAD Level II archive.