Alert archive / North Dakota / Tornado Watches in 2008
Tornado Watch 352
The Storm Prediction Center issued this tornado watch at May 24, 2008, 6:24 PM CDT for 20 counties in North Dakota. It was in force for 5 hr.
The area
The outline as issued.
The facts
- Issued
- May 24, 2008, 6:24 PM CDT (23:24 UTC)
- Expired
- May 24, 2008, 11:36 PM CDT
- In force
- 5 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 50 kt
Counties Burleigh County, ND, Dickey County, ND, Dunn County, ND, Emmons County, ND, Foster County, ND, Grant County, ND, Hettinger 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, Sheridan County, ND, Sioux County, ND, Stark County, ND, Stutsman County, ND, Wells County, ND
The radar
The Bismarck radar (KBIS), 28 km from the middle of the area, began a volume at 23:23 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
- 30%
- One or more EF2 to EF5 tornadoes
- 20%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 5%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 5%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
17 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 6:43 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Sioux | 62 min |
| May 24, 7:14 PM CDT | Severe Thunderstorm Warning | BIS | Dickey | 61 min |
| May 24, 7:30 PM CDT | Tornado Warning | BIS | Dickey | 45 min |
| May 24, 7:46 PM CDT | Severe Thunderstorm Warning | BIS | Grant, Morton | 44 min |
| May 24, 7:58 PM CDT | Tornado Warning | BIS | Dickey, LaMoure | 32 min |
| May 24, 8:03 PM CDT | Tornado Warning | BIS | Morton | 27 min |
| May 24, 8:11 PM CDT | Severe Thunderstorm Warning | BIS | LaMoure | 35 min |
| May 24, 8:15 PM CDT | Tornado Warning | BIS | Morton, Oliver | 30 min |
| May 24, 8:24 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 51 min |
| May 24, 8:26 PM CDT | Tornado Warning | BIS | Burleigh, Morton, Oliver | 34 min |
| May 24, 8:33 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 42 min |
| May 24, 8:33 PM CDT | Severe Thunderstorm Warning | BIS | Morton | 42 min |
| May 24, 8:44 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh, Morton | 61 min |
| May 24, 8:50 PM CDT | Tornado Warning | BIS | McLean, Oliver | 25 min |
| May 24, 8:54 PM CDT | Tornado Warning | BIS | McLean, Mercer, Oliver | 36 min |
| May 24, 9:41 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh | 49 min |
| May 24, 9:44 PM CDT | Severe Thunderstorm Warning | BIS | Burleigh | 46 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, 11.4 hours before the alert went out and 31 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 774 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 234 m²/s²
- 0-3 km storm-relative helicity
- 235 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WWUS20 KWNS 242325
SEL2
SPC WW 242325
NDZ000-250600-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 352
NWS STORM PREDICTION CENTER NORMAN OK
625 PM CDT SAT MAY 24 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
SOUTH CENTRAL NORTH DAKOTA
EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 625 PM
UNTIL 100 AM CDT.
TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 60 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 110 STATUTE
MILES EAST AND WEST OF A LINE FROM 55 MILES NORTH OF BISMARCK
NORTH DAKOTA TO 60 MILES SOUTH SOUTHEAST OF BISMARCK NORTH
DAKOTA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).
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 346...WW 347...WW
348...WW 349...WW 350...WW 351...
DISCUSSION...SCTD TSTMS/POSSIBLE SUPERCELLS EXPECTED TO DEVELOP NEWD
INTO WW AREA THIS EVENING AS ASCENT/COOLING ALOFT ASSOCIATED WITH
LEFT EXIT REGION OF NEB/SD JET STREAK OVERSPREADS CORRIDOR OF
LOW-LVL WARMING/MOISTENING NEAR OCCLUDED FRONT. BACKED LOW-LEVEL
FLOW AND SMALL TEMP-DEW POINT SPREADS COULD YIELD A COUPLE TORNADOES
IN ADDITION TO SVR HAIL/WIND.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 50 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
400. MEAN STORM MOTION VECTOR 24035.
...CORFIDISPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 6:07 PM CDT | Mesoscale Discussion | SPC | Burleigh, Dickey, Dunn, Emmons, Grant, Hettinger and 12 more | 113 min |
Nearby
Tornado Watches in North Dakota, 2008Every tornado watch in 2008
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.