Alert archive / Kentucky / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 202, NWS Jackson, KY
NWS Jackson, KY issued this severe thunderstorm warning at Jul 18, 1998, 9:40 PM EDT for Menifee County, Morgan County, Wolfe County, Kentucky. It was in force for 50 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Jul 18, 1998, 9:40 PM EDT (01:40 UTC)
- Expired
- Jul 18, 1998, 10:30 PM EDT
- In force
- 50 min
- Issued by
- NWS Jackson, KY
- Area
- Whole counties
Counties Menifee County, KY, Morgan County, KY, Wolfe County, KY
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 18, 10:05 PM EDT | Hail 0.75 | Frenchburg, KY |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 00:00Z, 1.7 hours before the alert went out and 176 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
- 635 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 1402 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Jackson, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 18, 2:40 PM EDT, 7 hours earlier.
Area forecast discussion, Jul 18, 2:40 PM EDT, 7 hours before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE JACKSON KY 240 PM EDT SAT JUL 18 1998 KJKL 88-D SHOWING ISOLATED -SHRA RACING ACROSS NORTHERN PART OF CWA. THESE SHRA IN RESPONSE TO A WEAK VORT LOBE MOVING ACROSS THIS AFTERNOON. SHOWERS ARE MORE NUMEROUS IN SE OH AND PORTIONS OF WESTERN WV AND THIS TREND SHOULD CONTINUE AS STRONGER DYNAMICS IN PLACE IN OH FOR TS THIS EVENING THERE. AS LONG AS -SHRA REMAIN ISOLATED...WILL OPT TO HANDLE IN NOWS AND OMIT FROM ZFP PACKAGE. PERSISTENT NW FLOW WILL BRING ANOTHER SHORT WAVE ACROSS OH ON SUNDAY AND THERE WILL BE MORE MOISTURE...MORE CAPE...AND SLIGHTLY MORE UNSTABLE CONDITIONS TO WORK WITH. OBSERVED LI/S FROM LAPS DATA TODAY ARE RUNNING -2 TO -4C. BY SUNDAY AFTERNOON THEY ARE PROGGED TO DROP TO AROUND -6 OR -7C. INSTABILITY ITSELF IS MUCH GREATER ACROSS N IN WHERE LI/S DROP AS LOW AS -12C. SO WHILE WE PROBABLY WON/T SEE THE STRONGEST STORMS ON SUNDAY...BELIEVE WE NEED TO KEEP SMALL POP GOING. ANY PRECIP ON SUNDAY SHOULD REFLECT A STRONG DIURNAL COMPONENT AND WOULD HARDLY BE WORTH MENTIONING BY SUNDAY EVENING. FOG SHOULD BE THERE AGAIN SUNDAY MORNING. LOOP THROUGH MRF SHOWS NEXT WEEK TO BE HOT AND DRY AS HIGH PRESSURE BUILDS AND BUILDS. LOOKS LIKE WED WILL BE OUR HOTTEST DAY WITH MAYBE A WEAK FRONT COMING ACROSS ON FRIDAY. AS FOR TEMPS...WOULD CONTINUE TO USE MID 60S FOR LOWS WITH HIGHS CLIMBING BACK INTO THE UPPER 80S AND LOWER 90S. THIS IS PRETTY CLOSE TO FWC NUMBERS. THE GRADUAL TREND SHOULD BE FOR WARMER AND MORE HUMID CONDITIONS WITH TIME AS FLOW BECOMES MORE SOUTHWEST BY SUNDAY AFTERNOON. THE FOLLOWING IS PRELIMINARY GUIDANCE FOR COORDINATION ONLY. OFFICIAL FORECASTS ARE CONTAINED WITHIN PRODUCT SDFZFPKY. JKL 65/89/68/91 0320 LOZ 63/90/65/92 0320 INGRAM
The office that day
Everything else NWS Jackson, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 2:11 AM EDT | Flash Flood Warning | JKL | Johnson | 3 hr |
| Jul 19, 3:28 AM EDT | Flash Flood Warning | JKL | Floyd | 2 hr |
| Jul 19, 2:01 PM EDT | Severe Thunderstorm Warning | JKL | Estill | 59 min |
| Jul 19, 2:30 PM EDT | Severe Thunderstorm Warning | JKL | Breathitt, Owsley | 45 min |
| Jul 19, 3:12 PM EDT | Severe Thunderstorm Warning | JKL | Estill, Powell | 63 min |
| Jul 19, 3:25 PM EDT | Severe Thunderstorm Warning | JKL | Harlan, Letcher | 60 min |
Nearby
Severe Thunderstorm Warnings in Kentucky, 1998Every severe thunderstorm warning in 1998
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.