Alert archive / Kentucky / Mesoscale Discussions in 2004
Mesoscale Discussion 201
The Storm Prediction Center issued this mesoscale discussion at Mar 18, 2004, 6:13 PM EST for 26 counties in Kentucky; Lawrence County, Ohio; 7 counties in West Virginia. It was in force for 62 min.
The area
The outline as issued.
The facts
- Issued
- Mar 18, 2004, 6:13 PM EST (23:13 UTC)
- Expired
- Mar 18, 2004, 7:15 PM EST
- In force
- 62 min
- Issued by
- the Storm Prediction Center
All 34 counties
Bath County, KY, Bourbon County, KY, Boyd County, KY, Bracken County, KY, Breathitt County, KY, Carter County, KY, Clark County, KY, Elliott County, KY, Fleming County, KY, Floyd County, KY, Greenup County, KY, Johnson County, KY, Lawrence County, KY, Lewis County, KY, Magoffin County, KY, Martin County, KY, Mason County, KY, Menifee County, KY, Montgomery County, KY, Morgan County, KY, Nicholas County, KY, Pike County, KY, Powell County, KY, Robertson County, KY, Rowan County, KY, Wolfe County, KY, Lawrence County, OH, Boone County, WV, Cabell County, WV, Kanawha County, WV, Lincoln County, WV, Logan County, WV, Mingo County, WV, Wayne County, WV
The radar
The Jackson,KY radar (KJKL), 69 km from the middle of the area, began a volume at 23:14 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
Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.2 hours before the alert went out and 154 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 532 m above ground
- 0-6 km bulk shear
- 91 kt
- 0-1 km storm-relative helicity
- 110 m²/s²
- 0-3 km storm-relative helicity
- 212 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
098 ACUS11 KWNS 182314 SWOMCD SPC MCD 182313 WVZ000-VAZ000-KYZ000-OHZ000-190015- MESOSCALE DISCUSSION 0201 NWS STORM PREDICTION CENTER NORMAN OK 0513 PM CST THU MAR 18 2004 AREAS AFFECTED...ERN KY...SCNTRL OH AND SWRN WV CONCERNING...CONVECTIVE TRENDS VALID 182313Z - 190015Z ...HAIL AND BRIEF GUSTY WINDS ARE POSSIBLE WITH TSTMS DEVELOPING ACROSS THE TRI-STATE OF KY/OH/WV... VERY STRONG UPPER IMPULSE CONTINUES TO DIG SEWD THROUGH THE UPPER MIDWEST WITH SRN PERIPHERY OF LARGE SCALE ASCENT SPREADING ACROSS THE OH VLY. STEEP MIDLEVEL LAPSE RATES ASSOCIATED WITH THIS DISTURBANCE ARE ALSO SPREADING ACROSS THE REGION AND CONTRIBUTING TO MUCAPES AOB 500 J/KG. WSWLY UNIDIRECTIONAL FLOW REGIME ORIGINATING IN SLIGHTLY MORE UNSTABLE AIR MASS UPSTREAM ACROSS THE LOWER OH VLY WILL CONTINUE TO FEED THE TSTMS AS THEY MOVE INTO THE WV COALFIELDS LATER THIS EVENING. VERTICAL SHEAR IS SUFFICIENT TO SUPPORT SUPERCELLS...THOUGH INSTABILITY IS SOMEWHAT MEAGER. COMBINATION OF COOL PROFILE...MAGNITUDE OF LARGE SCALE ASCENT AND AT LEAST SOME INSTABILITY WILL LIKELY SUPPORT TSTMS WITH HAIL AND PERHAPS BRIEF GUSTY WINDS. ACTIVITY WILL LIKELY WEAKEN AROUND 03 UTC IN THE WV/KY MOUNTAINS. SEVERE THREAT IS TOO MARGINAL TO WARRANT A WW. ..RACY.. 03/18/2004 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...RLX...JKL...ILN...LMK... 38848406 38758258 38348148 37808150 37298212 37458312 37788425 38488430
Nearby
Mesoscale Discussions in Kentucky, 2004Mesoscale Discussions in West Virginia, 2004Mesoscale Discussions in Ohio, 2004Every mesoscale discussion in 2004
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.