Alert archive / Kansas / Mesoscale Discussions in 2013
Mesoscale Discussion 1521
The Storm Prediction Center issued this mesoscale discussion at Jul 25, 2013, 6:43 PM CDT for 30 counties in Kansas; 17 counties in Oklahoma; 8 counties in Texas. It was in force for 92 min.
The area
The outline as issued.
The facts
- Issued
- Jul 25, 2013, 6:43 PM CDT (23:43 UTC)
- Expired
- Jul 25, 2013, 8:15 PM CDT
- In force
- 92 min
- Issued by
- the Storm Prediction Center
All 55 counties
Barber County, KS, Barton County, KS, Butler County, KS, Clark County, KS, Comanche County, KS, Cowley County, KS, Edwards County, KS, Ellis County, KS, Ellsworth County, KS, Ford County, KS, Gray County, KS, Harper County, KS, Harvey County, KS, Hodgeman County, KS, Kingman County, KS, Kiowa County, KS, McPherson County, KS, Meade County, KS, Ness County, KS, Pawnee County, KS, Pratt County, KS, Reno County, KS, Rice County, KS, Rush County, KS, Russell County, KS, Sedgwick County, KS, Seward County, KS, Stafford County, KS, Sumner County, KS, Trego County, KS, Alfalfa County, OK, Beaver County, OK, Blaine County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Garfield County, OK, Grant County, OK, Harper County, OK, Kay County, OK, Kingfisher County, OK, Major County, OK, Noble County, OK, Roger Mills County, OK, Texas County, OK, Woods County, OK, Woodward County, OK, Hansford County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Roberts County, TX, Sherman County, TX
The radar
The Dodge City radar (KDDC), 96 km from the middle of the area, began a volume at 23:47 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, 11.7 hours before the alert went out and 95 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
- 24 J/kg
- Mixed-layer CIN
- -238 J/kg
- Mixed-layer LCL
- 1912 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 9 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
548
ACUS11 KWNS 252344
SWOMCD
SPC MCD 252343
KSZ000-OKZ000-TXZ000-260115-
MESOSCALE DISCUSSION 1521
NWS STORM PREDICTION CENTER NORMAN OK
0643 PM CDT THU JUL 25 2013
AREAS AFFECTED...WCNTRL TO SRN KS...OK PANHANDLE...NCNTRL TO NW OK
AND NRN TX PANHANDLE
CONCERNING...SEVERE THUNDERSTORM WATCH 444...
VALID 252343Z - 260115Z
THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 444
CONTINUES.
SUMMARY...THE SEVERE THREAT MAY INCREASE SOMEWHAT ACROSS SW KS AND
THE OK PANHANDLE EARLY THIS EVENING. WIND DAMAGE AND LARGE HAIL WILL
BE POSSIBLE WITH THE STRONGER UPDRAFTS. AS THE STORMS APPROACH THE
SERN EDGE OF WW 444....A NEW WATCH MAY BECOME NECESSARY LATE THIS
EVENING.
DISCUSSION...SFC ANALYSIS SHOWS A 1010 MB LOW OVER FAR SW KS WITH A
TROUGH EXTENDING NWD ACROSS NW KS. SFC DEWPOINTS TO THE EAST OF THE
TROUGH ARE GENERALLY IN THE MID TO UPPER 60S F WITH MESOANALYSIS
ESTIMATING MLCAPE VALUES IN THE 1500 TO 2000 J/KG RANGE. THIS ALONG
WITH LARGE-SCALE ASCENT ASSOCIATED WITH A VORTICITY MAXIMA OVER NW
KS SHOULD SUPPORT THE STORMS SEWD ACROSS THE REMAINDER OF WW 444
THIS EVENING. AS THE CELLS APPROACH THE EDGE OF WW 444 LATE THIS
EVENING...MODERATE TO STRONG INSTABILITY COUPLED WITH 0-6 KM SHEAR
IN THE 30 TO 40 KT RANGE LOCATED IN SRN KS AND NRN OK MAY ENABLE THE
DEVELOPING MCS TO REMAIN SEVERE. THE PRIMARY THREATS ARE EXPECTED TO
BE WIND DAMAGE AND LARGE HAIL. THE WIND DAMAGE THREAT MAY BECOME
MORE DOMINANT IF A LINEAR MCS CAN DEVELOP LATE THIS EVENING.
..BROYLES/CORFIDI.. 07/25/2013
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...TSA...ICT...OUN...GID...DDC...GLD...AMA...
LAT...LON 39279968 37810063 36670159 36330198 36060215 35740213
35520185 35409961 35659834 36319724 36569664 37009638
37679648 39289855 39279968SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 3:24 PM CDT | Mesoscale Discussion | SPC | Barton, Clark, Decatur, Edwards, Ellis, Finney and 35 more | 96 min |
| Jul 25, 4:43 PM CDT | Severe Thunderstorm Watch | SPC | Barber, Barton, Clark, Comanche, Decatur, Edwards and 40 more | 8 hr |
Nearby
Mesoscale Discussions in Kansas, 2013Mesoscale Discussions in Oklahoma, 2013Mesoscale Discussions in Texas, 2013Every mesoscale discussion in 2013
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.