Alert archive / Oklahoma / Mesoscale Discussions in 2014
Mesoscale Discussion 697
The Storm Prediction Center issued this mesoscale discussion at May 25, 2014, 2:02 PM CDT for 8 counties in Kansas; 27 counties in Oklahoma. It was in force for 118 min.
The area
The outline as issued.
The facts
- Issued
- May 25, 2014, 2:02 PM CDT (19:02 UTC)
- Expired
- May 25, 2014, 4:00 PM CDT
- In force
- 118 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 5%
All 35 counties
Butler County, KS, Chautauqua County, KS, Cowley County, KS, Elk County, KS, Greenwood County, KS, Labette County, KS, Montgomery County, KS, Wilson County, KS, Atoka County, OK, Cherokee County, OK, Coal County, OK, Craig County, OK, Creek County, OK, Haskell County, OK, Hughes County, OK, Kay County, OK, Latimer County, OK, Lincoln County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Osage County, OK, Pawnee County, OK, Payne County, OK, Pittsburg County, OK, Pushmataha County, OK, Rogers County, OK, Seminole County, OK, Sequoyah County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 48 km from the middle of the area, began a volume at 19:02 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
Norman, OK (KOUN), launched 12:00Z, 7.0 hours before the alert went out and 149 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
- 664 J/kg
- Mixed-layer CIN
- -100 J/kg
- Mixed-layer LCL
- 803 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
835
ACUS11 KWNS 251903
SWOMCD
SPC MCD 251902
OKZ000-KSZ000-252100-
MESOSCALE DISCUSSION 0697
NWS STORM PREDICTION CENTER NORMAN OK
0202 PM CDT SUN MAY 25 2014
AREAS AFFECTED...PORTIONS OF ERN OK AND SERN KS
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 251902Z - 252100Z
PROBABILITY OF WATCH ISSUANCE...5 PERCENT
SUMMARY...AN ISOLATED DMGG WIND GUST OR TWO WILL BE POSSIBLE THIS
AFTERNOON...THOUGH THE ISSUANCE OF A WW IS NOT NEEDED.
DISCUSSION...LOW-LEVEL LAPSE RATES ARE STEEPENING TO THE E OF A
MID/HIGH-LEVEL CLOUD SHIELD RELATED TO EARLIER GENERATIONS OF
CONVECTION TO THE W/SW. MODIFICATIONS TO THE 12Z OUN RAOB TO ACCOUNT
FOR SFC TEMPERATURES IN THE LOWER 80S AMIDST DEWPOINTS IN THE MIDDLE
60S TO AROUND 70F SUGGEST SBCAPE AROUND 2000-3000 J/KG WITH
NEAR-ZERO INHIBITION IN AREAS OF STRONGER INSOLATION. CONVECTION
WILL CONTINUE TO STRENGTHEN ALONG DIFFERENTIAL HEATING ZONES
ATTENDANT TO THE EDGE OF THE CLOUD SHIELD AND WEAK SFC CONFLUENCE
AXES IN THE BACKGROUND SSELY FLOW PATTERN FARTHER E. RELATIVELY
MODEST LOW/MID-LEVEL FLOW AOB 30 KT SHOULD PREVENT ANY SUBSTANTIAL
CONVECTIVE ORGANIZATION FROM TAKING PLACE. HOWEVER...A FEW WET
MICROBURSTS MAY OCCUR...WITH ONE OR TWO INSTANCES OF DMGG WIND GUSTS
POSSIBLE GIVEN WATER LOADING ASSOCIATED WITH 1.50-1.75-INCH PW
VALUES PER GPS DATA.
..COHEN/CORFIDI.. 05/25/2014
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...SHV...TSA...ICT...OUN...
LAT...LON 35469687 37489739 38259656 37539537 35919476 34859470
34149539 34419621 35469687SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 25, 1:12 PM CDT | Mesoscale Discussion | SPC | Texas | 3 hr |
| May 25, 3:28 PM CDT | Severe Thunderstorm Watch | SPC | Beaver, Texas | 8 hr |
Nearby
Mesoscale Discussions in Oklahoma, 2014Mesoscale Discussions in Kansas, 2014Every mesoscale discussion in 2014
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.