Alert archive / Kansas / Mesoscale Discussions in 2009
Mesoscale Discussion 921
The Storm Prediction Center issued this mesoscale discussion at Jun 2, 2009, 12:35 PM MDT for Prowers County, Colorado; 17 counties in Kansas. It was in force for 55 min.
The area
The outline as issued.
The facts
- Issued
- Jun 2, 2009, 12:35 PM MDT (18:35 UTC)
- Expired
- Jun 2, 2009, 1:30 PM MDT
- In force
- 55 min
- Issued by
- the Storm Prediction Center
Counties Prowers County, CO, Finney County, KS, Ford County, KS, Grant County, KS, Gray County, KS, Greeley County, KS, Hamilton County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Lane County, KS, Meade County, KS, Morton County, KS, Scott County, KS, Seward County, KS, Stanton County, KS, Stevens County, KS, Wichita County, KS
The radar
The Dodge City radar (KDDC), 115 km from the middle of the area, began a volume at 18:35 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.
The nearest sounding before it
Dodge City, (KDDC), launched 12:00Z, 6.6 hours before the alert went out and 121 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
- 21 J/kg
- Mixed-layer CIN
- -339 J/kg
- Mixed-layer LCL
- 1411 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 84 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
ACUS11 KWNS 021835
SWOMCD
SPC MCD 021835
KSZ000-COZ000-021930-
MESOSCALE DISCUSSION 0921
NWS STORM PREDICTION CENTER NORMAN OK
0135 PM CDT TUE JUN 02 2009
AREAS AFFECTED...SWRN KS / FAR SERN CO
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 021835Z - 021930Z
POTENTIAL APPEARS TO BE INCREASING FOR AN ISOLD BRIEF TORNADO OR TWO
ACROSS PARTS OF FAR SERN CO AND SWRN KS.
COMPACT AND NEARLY VERTICALLY STACKED LOW/COLD POCKET OVER SWRN KS
WILL ONLY SLOWLY DRIFT EWD OVER THE NEXT FEW HOURS. SURFACE
ANALYSIS SHOWS A MOIST AXIS CHARACTERIZED BY UPPER 50S DEWPOINTS
EXTENDING WWD FROM S-CNTRL KS TO SERN CO. WITHIN THIS
CORRIDOR...SEVERAL SMALL CB/S HAVE REPORTEDLY PRODUCED FUNNEL CLOUDS
OVER BACA COUNTY WITHIN THE PAST HOUR. LATEST VISIBLE IMAGERY SHOWS
WIDESPREAD BUT BROKEN CLOUD COVER MAINLY OVER PARTS OF SWRN KS.
STUNTED BUT SUFFICIENT DIABATIC HEATING HAS LEAD TO A MARGINALLY
UNSTABLE AIRMASS /250-750 J/KG MLCAPE/ WITHIN A SHELTERED LOW LCL
ENVIRONMENT /AOB 1000 M/. STRONGLY VEERING WIND PROFILES IN EXIT
REGION OF UPPER JETLET MAY SUPPORT TRANSIENT SUPERCELL STRUCTURE
WITH TIME IF STORMS CAN ORGANIZE. LARGE LOW LEVEL CAPE AMIDST
ABUNDANT LOW LEVEL VORTICITY /PER STRONGLY VEERED PROFILES/ IN
BACKED SURFACE FLOW MAY CONTINUE TO SUPPORT FUNNEL CLOUDS AND
PERHAPS A BRIEF TORNADO OR TWO. GIVEN LIMITED AREAL EXTENT AND
NATURE OF THREAT...A WW IS NOT ANTICIPATED ATTM.
..SMITH.. 06/02/2009
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...DDC...GLD...PUB...
LAT...LON 37420247 37120187 37040104 37150017 37240004 37629975
37959965 38450015 38700097 38640168 38440238 38290256
37950260 37420247SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 8:27 PM MDT | Mesoscale Discussion | SPC | Jewell, Republic, Smith, Washington | 63 min |
| Jun 1, 10:40 PM MDT | Mesoscale Discussion | SPC | Atchison, Clay, Cloud, Dickinson, Geary, Jackson and 10 more | 2 hr |
| Jun 2, 1:14 PM MDT | Mesoscale Discussion | SPC | Anderson, Coffey, Douglas, Franklin, Jefferson, Johnson and 8 more | 2 hr |
Nearby
Mesoscale Discussions in Kansas, 2009Mesoscale Discussions in Colorado, 2009Every mesoscale discussion in 2009
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.