Alert archive / Kansas / Mesoscale Discussions in 2003
Mesoscale Discussion 1949
The Storm Prediction Center issued this mesoscale discussion at Jul 21, 2003, 8:21 PM CDT for 16 counties in Kansas; Franklin County, Harlan County, Webster County, Nebraska. It was in force for 54 min.
The area
The outline as issued.
The facts
- Issued
- Jul 21, 2003, 8:21 PM CDT (01:21 UTC)
- Expired
- Jul 21, 2003, 9:15 PM CDT
- In force
- 54 min
- Issued by
- the Storm Prediction Center
Counties Barton County, KS, Ellis County, KS, Ellsworth County, KS, Graham County, KS, Lincoln County, KS, Mitchell County, KS, Ness County, KS, Osborne County, KS, Pawnee County, KS, Phillips County, KS, Rice County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Smith County, KS, Trego County, KS, Franklin County, NE, Harlan County, NE, Webster County, NE
The radar
The Grand Island radar (KUEX), 142 km from the middle of the area, began a volume at 01:24 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 00:00Z, 1.4 hours before the alert went out and 168 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
- 1021 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 2845 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 100 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
026 ACUS11 KWNS 220121 SWOMCD SPC MCD 220121 KSZ000-NEZ000-220215- MESOSCALE DISCUSSION 1949 NWS STORM PREDICTION CENTER NORMAN OK 0821 PM CDT MON JUL 21 2003 AREAS AFFECTED...S CNTRL NEB AND N CNTRL KS CONCERNING...SEVERE THUNDERSTORM POTENTIAL VALID 220121Z - 220215Z THREAT FOR ISOLATED DAMAGING WIND AND HAIL MAY PERSIST INTO S CNTRL NEB AND N CNTRL KS AS STORMS DEVELOP SEWD OUT OF WRN NEB AND KS. AREA IS BEING MONITORED FOR POSSIBLE WW. STORMS ARE EXPECTED TO CONTINUE DEVELOPING SEWD ALONG INSTABILITY GRADIENT AND JUST N OF BAROCLINIC ZONE THAT CURRENTLY EXTENDS FROM CNTRL KS NWWD THROUGH WRN NEB. GIVEN RELATIVELY HIGH DEWPOINT SPREADS ACROSS W CNTRL KS...STORMS MAY BECOME OUTFLOW DOMINANT WITH INCREASING THREAT FOR DAMAGING WIND AS THEY DEVELOP SEWD. ..DIAL.. 07/22/2003 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...TOP...ICT...GID...DDC...GLD... 38979998 40529967 40319857 39009772 38299821 38099990
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 7:53 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Decatur, Graham, Norton, Rawlins, Sheridan and 2 more | 97 min |
| Jul 21, 11:39 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Bourbon, Butler, Chautauqua, Cherokee and 12 more | 2 hr |
Nearby
Mesoscale Discussions in Kansas, 2003Mesoscale Discussions in Nebraska, 2003Every mesoscale discussion in 2003
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.