Alert archive / Missouri / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 28, NWS Paducah, KY
NWS Paducah, KY issued this severe thunderstorm warning at Apr 13, 1998, 5:40 PM CDT for Wayne County, Missouri. It was in force for 50 min. 2 reports 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
- Apr 13, 1998, 5:40 PM CDT (22:40 UTC)
- Expired
- Apr 13, 1998, 6:30 PM CDT
- In force
- 50 min
- Issued by
- NWS Paducah, KY
- Area
- Whole counties
County Wayne County, MO
The radar
The Paducah radar (KPAH), 150 km from the middle of the area, began a volume at 22:40 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 13, 5:44 PM CDT | Hail 1.75 | Piedmont, MO | Reported on Highway 34. |
| Apr 13, 6:02 PM CDT | Hail 0.75 | Piedmont, MO | Occurred on Highway 49. |
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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 13, 1:45 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Little Rock, AR (KLZK), launched 12:00Z, 10.7 hours before the alert went out and 258 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
- 11 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 688 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 300 m²/s²
- 0-3 km storm-relative helicity
- 284 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Paducah, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 13, 1:15 PM CDT, 4 hours 25 minutes earlier.
Area forecast discussion, Apr 13, 1:15 PM CDT, 4 hours 25 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE PADUCAH KY 115 PM CDT MON APR 13 1998 THUNDERSTORM POTENTIAL/SEVERITY NEXT FEW DAYS IS MAIN CONCERN. VORTICITY CENTER NOTED ON SATELLITE LOOPS OVER NORTHEAST MISSOURI SEEMINGLY HANDLED A BIT BETTER BY ETA. VORTICITY CENTER MOVES INTO CENTRAL ILLINOIS BY 00Z WITH TAIL PORTION INTO NORTHERN ARKANSAS. ATMOSPHERE STILL CAPPED AND SFC-BASED LIFTED INDICIES SUGGEST CURRENT STORMS MOVING INTO SEMO/S IL MAY REMAIN BLO SEVERE LIMITS. DEWPOINT INCREASE HAS BEEN SLOW...WITH VALUES LOWER THAN ETA FORECASTS. ALSO THE EXTENSIVE CLOUD COVER ACROSS REGION HAS NOT HELPED TO FURTHER DESTABILIZE THE AIRMASS. SO ETA FORECAST LI/CAPE ETC MAY BE SOMEWHAT OVERDONE IN THIS AREA. HOWEVER...WITH H5 JET MAX AND H3 DIFFLUENCE AND HIGHER DEWPOINTS AND TAIL OF VORT... ANOTHER LINE OF STORMS IS LIKELY TO FORM OVER MISSOURI/ARKANSAS AND MOVE THIS WAY. THEREFORE MENTION OF STORMS FOR ALL ZONES THIS EVENING...PERHAPS ALL-NIGHT MENTION FOR EASTERNMOST AREAS. . AS LIFT AND DEEPER MOISTURE SHIFTS EAST LATE TONIGHT/TUESDAY SHOULD BE ONLY MINIMAL CHANCES OF STORMS TUESDAY...PERHAPS WAITING UNTIL TUESDAY NIGHT/WEDNESDAY AS NEXT VORT CENTER APPROACHES IN BROAD SW UPPER FLOW. SFC WINDS SHOULD CONTINUE GUSTY THROUGH EVENING HOURS. SEVERAL SITES HAVE NEARLY REACHED WIND ADVISORY CRITERIA OVER SEMO AND S IL...BUT NOT WIDESPREAD ENOUGH AS YET TO ISSUE. SUGGEST CONTINUING TO MENTION WINDY IN EVENING FORECASTS...BUT TRENDING DOWNWARD OVERNIGHT AS TIGHT GRADIENT LIFTS EAST. NUMERICAL GUIDANCE IS CLOSE ON TEMPS AND SEE NO REASON TO SUGGEST MUCH DEVIATION. SDB
The office that day
Everything else NWS Paducah, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 13, 6:19 PM CDT | Severe Thunderstorm Warning | PAH | Wayne | 41 min |
| Apr 13, 6:23 PM CDT | Tornado Warning | PAH | Ripley | 52 min |
| Apr 13, 6:29 PM CDT | Severe Thunderstorm Warning | PAH | Bollinger | 61 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 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; radar from the NEXRAD Level II archive.