Alert archive / North Dakota / Tornado Watches in 2004
Tornado Watch 598
The Storm Prediction Center issued this tornado watch at Jul 10, 2004, 3:55 PM CDT for 26 counties in North Dakota. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 10, 2004, 3:55 PM CDT (20:55 UTC)
- Expired
- Jul 10, 2004, 10:00 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 26 counties
Barnes County, ND, Burleigh County, ND, Cass County, ND, Dickey County, ND, Eddy County, ND, Emmons County, ND, Foster County, ND, Grant County, ND, Griggs County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McIntosh County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Oliver County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Sheridan County, ND, Sioux County, ND, Steele County, ND, Stutsman County, ND, Traill County, ND, Wells County, ND
The radar
The Bismarck radar (KBIS), 57 km from the middle of the area, began a volume at 20:59 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
10 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 4:09 PM CDT | Severe Thunderstorm Warning | BIS | Mercer, Oliver | 66 min |
| Jul 10, 5:00 PM CDT | Flash Flood Warning | BIS | Oliver | 3 hr |
| Jul 10, 5:28 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh | 62 min |
| Jul 10, 6:21 PM CDT | Severe Thunderstorm Warning | BIS | Kidder | 54 min |
| Jul 10, 6:50 PM CDT | Tornado Warning | BIS | Kidder | 25 min |
| Jul 10, 8:06 PM CDT | Severe Thunderstorm Warning | BIS | Stutsman | 54 min |
| Jul 10, 8:10 PM CDT | Severe Thunderstorm Warning | FGF | Barnes, Cass | 65 min |
| Jul 10, 8:29 PM CDT | Tornado Warning | FGF | Cass | 61 min |
| Jul 10, 8:50 PM CDT | Flash Flood Warning | BIS | Stutsman | 115 min |
| Jul 10, 9:04 PM CDT | Flash Flood Warning | FGF | Cass | 12 hr |
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 12:00Z, 8.9 hours before the alert went out and 54 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
- 804 J/kg
- Mixed-layer CIN
- -244 J/kg
- Mixed-layer LCL
- 1142 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 98 m²/s²
- 0-3 km storm-relative helicity
- 118 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 102056
SEL8
SPC WW 102055
NDZ000-110300-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 598
NWS STORM PREDICTION CENTER NORMAN OK
355 PM CDT SAT JUL 10 2004
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
SOUTHERN AND EASTERN NORTH DAKOTA
EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 355 PM UNTIL
1000 PM CDT.
TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS ALONG AND 65 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 65 MILES SOUTH SOUTHWEST OF ROSEGLEN NORTH
DAKOTA TO 5 MILES SOUTH SOUTHEAST OF FARGO NORTH DAKOTA.
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...CONTINUE...WW 596...WW 597...
DISCUSSION...THUNDERSTORMS HAVE DEVELOPED ALONG A SURFACE BOUNDARY
NORTHWEST OF BIS AND OTHER STORMS ARE EXPECTED SOUTH AND EAST OF THE
BOUNDARY INTO THE EVENING HOURS. STRONG DEEP LAYER SHEAR AND
MODERATE TO STRONG INSTABILITY WILL BE FAVORABLE FOR SUPERCELLS.
THE MAIN THREAT WILL BE LARGE HAIL...THOUGH THE STRONG VEERING
PROFILES AND MOIST ENVIRONMENT ARE SUGGESTIVE OF A FEW TORNADOES
ALSO.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550.
MEAN STORM MOTION VECTOR 26030.
...IMY
474,1022 474,0964 455,0964 455,1022SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 9, 7:29 PM CDT | Mesoscale Discussion | SPC | Adams, Billings, Bowman, Dunn, Grant, Hettinger and 9 more | 2 hr |
| Jul 10, 8:56 AM CDT | Mesoscale Discussion | SPC | Richland, Traill | 94 min |
| Jul 10, 2:19 PM CDT | Mesoscale Discussion | SPC | Barnes, Burleigh, Eddy, Emmons, Foster, Griggs and 8 more | 2 hr |
| Jul 10, 3:07 PM CDT | Mesoscale Discussion | SPC | Grand Forks, Nelson, Walsh | 113 min |
| Jul 10, 3:39 PM CDT | Mesoscale Discussion | SPC | Billings, Bowman, Golden Valley, Hettinger, Slope, Stark | 2 hr |
| Jul 10, 3:56 PM CDT | Mesoscale Discussion | SPC | Billings, Bowman, Golden Valley, Hettinger, Slope, Stark | 2 hr |
| Jul 10, 6:30 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Billings, Bowman, Dunn, Golden Valley, Hettinger and 3 more | 7 hr |
| Jul 10, 6:51 PM CDT | Mesoscale Discussion | SPC | Barnes, Emmons, Grant, Kidder, LaMoure, Logan and 2 more | 114 min |
Nearby
Tornado Watches in North Dakota, 2004Every tornado watch in 2004
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.