Alert archive / Missouri / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 199, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at Aug 19, 1996, 5:00 PM CDT for Atchison County, Missouri. It was in force for 60 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
- Aug 19, 1996, 5:00 PM CDT (22:00 UTC)
- Expired
- Aug 19, 1996, 6:00 PM CDT
- In force
- 60 min
- Issued by
- NWS Kansas City, MO
- Area
- Whole counties
County Atchison County, MO
The radar
The Omaha radar (KOAX), 127 km from the middle of the area, began a volume at 21:59 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 |
|---|---|---|---|
| Aug 19, 5:20 PM CDT | Hail 0.75 | Rockport, MO |
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
Omaha, NE (KOAX), launched 12:00Z, 10.0 hours before the alert went out and 127 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
- 1345 J/kg
- Mixed-layer CIN
- -116 J/kg
- Mixed-layer LCL
- 826 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 60 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 Kansas City, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 19, 3:40 PM CDT, 1 hour 20 minutes earlier.
Area forecast discussion, Aug 19, 3:40 PM CDT, 1 hour 20 minutes before
NORTHWEST MISSOURI FORECAST DISCUSSION NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO 335 PM CDT MON AUG 19 1996 AWIPS 1KM VSBL IMAGERY SHOWS CNVTN DVLPG ALG SFC FNT OVR NRN KS/SRN NEB INTO SRN IA. MAX LO LVL MOISTURE CONVERGENCE OVR SE NEB SHOULD PROVIDE LIFT NEEDED FOR STG TSTM DVLPMNT NEXT FEW HRS. EXPCT TSTM ACTIVITY TO MOVE EAST ALONG BNDRY AND SAG SWRD INTO NRN MO THIS EVENING. MDLS SUGGEST CONTINUED CONVERGENCE OVER NORTH CNTRL KANSAS TOWARD MIDNIGHT AND EXPECT TO SEE ADDITIONAL REDEVELOPMENT UPSTREAM. POTENTIAL FOR TSTSMS MAY LINGER INTO THE MORNING HOURS OVER WESTERN PORTIONS OF THE STATE ON TUESDAY. LONGER TERM...MODELS SUGGEST SUMMER. STG SHORT WAVE TROUGH MOVES INTVO THE NORTHERN ROCKIES 36 TO 48 HRS WHICH RESULTS IN RIDGING ACROSS THE CENTRAL PLAINS. WARMER TEMPERATURES INTO THE LOWER 90S AND LOWER POPS AS SFC FRONT LIFTS WELL TO THE NORTH OF THE AREA. MCI BU 70/90 71/93 70 99531 BROWNING
In the hours before
Special weather statement, Aug 19, 1:02 PM CDT, 3 hours 58 minutes before
KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-201200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 100 PM CDT MON AUG 19 1996 ...SLIGHT RISK OF SEVERE THUNDERSTORMS NORTH OF A LINE FROM ST JOSEPH TO PRINCETON THIS EVENING AND EARLY TONIGHT... FORECAST...THUNDERSTORMS ARE FORECAST TO DEVELOP ALONG A FRONT IN SOUTHERN NEBRASKA AND SOUTHERN IOWA AND MOVE INTO NORTHERN MISSOURI LATE THIS AFTERNOON AND EVENING...WITH ISOLATED SEVERE THUNDERSTOMS POSSIBLE. THE MAIN SEVERE THREAT WILL BE FROM LARGE HAIL AND DAMAGING WINDS. ISOLATED THUNDERSTOMS MAY DEVELOP ACROSS WEST CENTRAL MISSOURI LATE THIS AFTERNOON IN THE VERY MOIST AND UNSTABLE AIR. WEAK WINDS ALOFT PRECLUDE THESE STORMS FROM BECOMING SEVERE. ACTIVATION OF CIVIL DEFENSE...HAM RADIO AND STORM SPOTTER NETWORKS MAY BE REQUIRED OVER EXTREME NORTHWEST MISSOURI LATE THIS AFTERNOON AND EVENING. DISCUSSION...AN OUTFLOW BOUNDARY FROM OVERNIGHT CONVECTION HAS PUSHED SOUTH INTO EXTREME NORTHERN MISSOURI WHILE A COLD FRONT IS MOVING INTO SOUTHEAST NEBRASKA. CONVERGENCE OF LOW LEVEL...MOIST AND UNSTABLE AIR ALONG THESE BOUNDARIES WILL AID THUNDERSTORM DEVELOPMENT THIS AFTERNOON. THESE STORMS WILL MOVE EAST AND SAG SOUTH THIS EVENING. DUE TO THE INSTABILITY AND STRONGER WINDS ALOFT...THERE IS A POTENTIAL FOR ISOLATED SEVERE THUNDERSTORMS IN NORTHWEST MISSOURI. BROWNING
The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 4:03 PM CDT | Severe Thunderstorm Warning | EAX | Atchison | 47 min |
| Aug 19, 5:17 PM CDT | Flash Flood Warning | EAX | Atchison | 4 hr |
Nearby
Severe Thunderstorm Warnings in Missouri, 1996Every severe thunderstorm warning in 1996
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.