Alert archive / North Dakota / Mesoscale Discussions in 2005
Mesoscale Discussion 2000
The Storm Prediction Center issued this mesoscale discussion at Aug 16, 2005, 6:26 PM MDT for Wibaux County, Montana; Billings County, Golden Valley County, North Dakota. It was in force for 94 min.
The area
The outline as issued.
The facts
- Issued
- Aug 16, 2005, 6:26 PM MDT (00:26 UTC)
- Expired
- Aug 16, 2005, 8:00 PM MDT
- In force
- 94 min
- Issued by
- the Storm Prediction Center
Counties Wibaux County, MT, Billings County, ND, Golden Valley County, ND
The nearest sounding before it
Bismarck Municip, ND (KBIS), launched 00:00Z, 0.4 hours before the alert went out and 234 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
- 700 J/kg
- Mixed-layer CIN
- -59 J/kg
- Mixed-layer LCL
- 1373 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 198 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 ACUS11 KWNS 170026 SWOMCD SPC MCD 170026 NDZ000-MTZ000-170200- MESOSCALE DISCUSSION 2000 NWS STORM PREDICTION CENTER NORMAN OK 0726 PM CDT TUE AUG 16 2005 AREAS AFFECTED...ERN MT...WRN ND CONCERNING...SEVERE THUNDERSTORM WATCH 726... VALID 170026Z - 170200Z SEVERE CONVECTIVE DEVELOPMENT...INCLUDING ISOLATED SUPERCELLS...IS UNDERWAY ACROSS EASTERN MONTANA...VICINITY OF GLASGOW INTO AREAS WEST OF GLENDIVE. THIS IS IN MOIST EASTERLY UPSLOPE FLOW/WARM ADVECTION REGIME...ALONG WARM FRONT EAST OF DEEPENING SURFACE LOW...WHERE CAPE NOW RANGES FROM 1000 TO 2000 J/KG. ADDITIONAL STRONG/SEVERE STORMS ARE OCCURRING IN SURFACE TROUGH... TO THE SOUTH WARM FRONT...EAST OF BILLINGS MT INTO AREAS EAST OF GILLETTE WY. RISK OF DAMAGING WINDS/HAIL WILL CONTINUE ANOTHER COUPLE OF HOURS WITH THIS ACTIVITY...IN VERY WARM DEEP MIXED BOUNDARY LAYER...UNTIL STABILIZATION ASSOCIATED WITH DIURNAL COOLING STRENGTHENS. THEREAFTER...PRIMARY ACTIVITY IS EXPECTED TO BECOME FOCUSED NORTH OF WARM FRONT. WARM ADVECTION ASSOCIATED WITH STRENGTHENING SOUTHERLY LOW-LEVEL JET MAY EVENTUALLY SUPPORT GROWING CLUSTER OF STORMS...WITH STRONGEST STORMS ON SOUTHERN FLANK...IN CLOSEST PROXIMITY TO FRONT...WEST/NORTHWEST OF DICKINSON TOWARD 03-04Z. ..KERR.. 08/17/2005 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...BIS...BYZ...GGW... 47280454 47650412 47420286 47000254 46620284 46640405 46970449
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 16, 9:23 PM MDT | Mesoscale Discussion | SPC | Benson, Billings, Bottineau, Burke, Burleigh, Divide and 22 more | 2 hr |
| Aug 16, 10:35 PM MDT | Mesoscale Discussion | SPC | Barnes, Benson, Burleigh, Dunn, Eddy, Foster and 15 more | 55 min |
| Aug 17, 12:03 PM MDT | Mesoscale Discussion | SPC | Barnes, Burleigh, Cass, Dickey, Emmons, Foster and 14 more | 87 min |
| Aug 17, 12:35 PM MDT | Severe Thunderstorm Watch | SPC | Barnes, Cass, Dickey, Emmons, Grant, Kidder and 10 more | 8 hr |
| Aug 17, 4:18 PM MDT | Mesoscale Discussion | SPC | Barnes, Cass, Dickey, Emmons, Griggs, Kidder and 10 more | 117 min |
Nearby
Mesoscale Discussions in North Dakota, 2005Mesoscale Discussions in Montana, 2005Every mesoscale discussion 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.