Alert archive / North Dakota / Tornado Watches in 2007
Tornado Watch 389
The Storm Prediction Center issued this tornado watch at Jun 12, 2007, 2:02 PM CDT for 28 counties in North Dakota; 23 counties in South Dakota. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 12, 2007, 2:02 PM CDT (19:02 UTC)
- Expired
- Jun 12, 2007, 8:10 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 60 kt
All 51 counties
Benson County, ND, Bottineau County, ND, Burleigh County, ND, Cavalier County, ND, Dickey County, ND, Eddy County, ND, Emmons County, ND, Foster County, ND, Grant County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McHenry County, ND, McIntosh County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Oliver County, ND, Pierce County, ND, Ramsey County, ND, Renville County, ND, Rolette County, ND, Sheridan County, ND, Sioux County, ND, Stutsman County, ND, Towner County, ND, Ward County, ND, Wells County, ND, Bennett County, SD, Buffalo County, SD, Campbell County, SD, Corson County, SD, Dewey County, SD, Edmunds County, SD, Faulk County, SD, Haakon County, SD, Hand County, SD, Hughes County, SD, Hyde County, SD, Jackson County, SD, Jones County, SD, Lyman County, SD, McPherson County, SD, Mellette County, SD, Potter County, SD, Stanley County, SD, Sully County, SD, Todd County, SD, Tripp County, SD, Walworth County, SD, Ziebach County, SD
The radar
The Bismarck radar (KBIS), 21 km from the middle of the area, began a volume at 19:02 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 SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 40%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 50%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 80%
Warnings issued inside it
12 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 2:07 PM CDT | Severe Thunderstorm Warning | ABR | Dewey, Hughes, Potter, Stanley, Sully, Walworth | 53 min |
| Jun 12, 2:08 PM CDT | Severe Thunderstorm Warning | BIS | McLean, Mercer | 67 min |
| Jun 12, 2:27 PM CDT | Flash Flood Warning | UNR | Mellette | 6 hr |
| Jun 12, 2:44 PM CDT | Tornado Warning | BIS | McLean | 19 min |
| Jun 12, 2:53 PM CDT | Tornado Warning | BIS | Ward | 37 min |
| Jun 12, 3:29 PM CDT | Tornado Warning | BIS | Ward | 15 min |
| Jun 12, 3:29 PM CDT | Flash Flood Warning | ABR | Buffalo, Campbell, Corson, Dewey, Edmunds, Faulk and 10 more | 6 hr |
| Jun 12, 3:38 PM CDT | Severe Thunderstorm Warning | BIS | Bottineau | 40 min |
| Jun 12, 4:45 PM CDT | Flash Flood Warning | UNR | Todd | 6 hr |
| Jun 12, 4:51 PM CDT | Severe Thunderstorm Warning | FGF | Benson, Towner | 54 min |
| Jun 12, 5:10 PM CDT | Severe Thunderstorm Warning | ABR | Corson | 20 min |
| Jun 12, 5:32 PM CDT | Tornado Warning | ABR | Potter | 28 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 12:00Z, 7.0 hours before the alert went out and 22 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
- 746 J/kg
- Mixed-layer CIN
- -246 J/kg
- Mixed-layer LCL
- 871 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 121901
SEL9
SPC WW 121901
NDZ000-SDZ000-130200-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 389
NWS STORM PREDICTION CENTER NORMAN OK
200 PM CDT TUE JUN 12 2007
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
LARGE PART OF CENTRAL NORTH DAKOTA
LARGE PART OF CENTRAL SOUTH DAKOTA
EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 200 PM UNTIL
900 PM CDT.
TORNADOES...HAIL TO 2.5 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 70 STATUTE
MILES EAST AND WEST OF A LINE FROM 70 MILES NORTHEAST OF MINOT
NORTH DAKOTA TO 80 MILES SOUTH SOUTHEAST OF PHILIP SOUTH DAKOTA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU9).
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 384...WW 385...WW
386...WW 387...WW 388...
DISCUSSION...THUNDERSTORMS WILL CONTINUE TO INTENSIFY ALONG/AHEAD OF
N/S FRONTAL ZONE THRU WRN DAKOTAS. WITH MLCAPES INCREASING TO
2500J/KG AND LOW LEVEL SHEAR OF 20KT...SUPERCELLS ARE LIKELY. IN
ADDITION TO LARGE HAIL/DAMAGING WINDS...TORNADOES ARE POSSIBLE WITH
ANY SUPERCELL.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 21025.
...HALESSPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 9:13 PM CDT | Mesoscale Discussion | SPC | Bottineau, Burleigh, Dunn, McHenry, McLean, Mercer and 7 more | 92 min |
| Jun 11, 11:32 PM CDT | Severe Thunderstorm Watch | SPC | Adams, Billings, Bowman, Burke, Divide, Dunn and 11 more | 5 hr |
| Jun 12, 3:03 AM CDT | Mesoscale Discussion | SPC | Adams, Billings, Bowman, Burke, Divide, Dunn and 11 more | 57 min |
| Jun 12, 12:40 PM CDT | Mesoscale Discussion | SPC | Adams, Benson, Burleigh, Dunn, Emmons, Grant and 15 more | 2 hr |
| Jun 12, 4:23 PM CDT | Mesoscale Discussion | SPC | Benson, Bottineau, Burleigh, Eddy, Emmons, Foster and 14 more | 2 hr |
Nearby
Tornado Watches in North Dakota, 2007Tornado Watches in South Dakota, 2007Every tornado watch in 2007
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.