Alert archive / Missouri / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 205, NWS St. Louis, MO
NWS St. Louis, MO issued this severe thunderstorm warning at Jun 4, 2000, 6:51 PM CDT for Callaway County, Cole County, Missouri. It was in force for 54 min. 5 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
- Jun 4, 2000, 6:51 PM CDT (23:51 UTC)
- Expired
- Jun 4, 2000, 7:45 PM CDT
- In force
- 54 min
- Issued by
- NWS St. Louis, MO
- Area
- Whole counties
Counties Callaway County, MO, Cole County, MO
The radar
The St Louis radar (KLSX), 123 km from the middle of the area, began a volume at 23:55 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 |
|---|---|---|---|
| Jun 4, 7:12 PM CDT | Hail 1 | Jefferson City, MO | |
| Jun 4, 7:16 PM CDT | Hail 1.75 | Jefferson City, MO | |
| Jun 4, 7:20 PM CDT | Thunderstorm Wind 52 E | Jefferson City, MO | |
| Jun 4, 7:21 PM CDT | Hail 0.75 | Holts Summit, MO | Emergency management officials reported 3/4 inch hail. |
| Jun 4, 7:28 PM CDT | Hail 1.75 | Jefferson City, 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
Springfield, MO (KSGF), launched 12:00Z, 11.9 hours before the alert went out and 247 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
- 83 J/kg
- Mixed-layer CIN
- -292 J/kg
- Mixed-layer LCL
- 977 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 32 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 St. Louis, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 4, 1:55 PM CDT, 4 hours 56 minutes earlier.
Area forecast discussion, Jun 4, 1:55 PM CDT, 4 hours 56 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE ST LOUIS MO 155 PM CDT SUN JUN 4 2000 MAIN FORECAST CHALLENGE DEALS WITH THUNDERSTORMS TONIGHT. ETA SEEMED TO BE VERIFYING THE BEST AT 18Z...SO WILL FOLLOW THE CLOSEST. INGREDIENTS FOR TSRA ARE NOT ALL TOGETHER AS BEST UVV ASSOCIATED WITH SHORTWAVE TROF SRN MN/WRN IA WILL BE OVER IA...FAR NERN MO AND NRN AND CNTRL IL. ELEVATED STORMS ALONG MO/IA BORDER ARE STAYING JUST OUTSIDE OF CWFA ATTM. FORECAST FOR EVENING HAS BEEN COMPLICATED BY OUTFLOW BOUNDARY LAID OUT BY MORNING CONVECTION NEAR THE MS RIVER. AT 18Z...SATELLITE AND SURFACE OBS PLACED THIS BOUNDARY FROM THE SRN STL METRO TO COU TO NEAR CHILLICOTHE LINE. THE COLD FRONT WAS CURRENTLY INTERSECTING THE COLD FRONT OVER NWRN MO WHERE OBJECTIVE ANALYSIS IS SHOWING LOCALIZED SFC MOISTURE CONVERGENCE WITH LITTLE CAP AND LI'S AOB MINUS 8 AND CAPES AOA 2000 J/KG. THIS INTERSECTION IS CLOSE TO SFC LOW OVER S CNTRL IA WHICH THE MESOETA MOVES TO JUST NE OF STL BY 06Z. THINK BOUNDARY WILL MOVE BACK N JUST A BIT IN RESPONSE TO THE LOW...SO WILL PUT BEST POPS ALONG AND N OF BOUNDARY OVR NE MO AND SW IL. SVR TSRA IS POSSIBLE AS 0-6 KM SHEAR IS BETWEEN 35-45 KTS AND SELY SFC WINDS ARE ENHANCING SRH ALONG AND N OF THE BOUNDARY. LOWER CHC POPS WILL DO FARTHER S ALONG THE COLD FRONT. FRONT WILL MOVE SE OVERNIGHT WITH WINDS TURNING NLY BEHIND FNT. ABUNDANT LOW CLOUDS SEEN BEHIND FRONT OVER UPPER MIDWEST WILL FILTER DOWN OVER REGION. CYCONLIC LOW FLOW WITH HIGH RELATIVE HUMIDITIES SHOULD KEEP THESE CLOUDS IN THE REGION INTO MONDAY NIGHT. RIDGE WILL FINALLY CROSS AREA ON TUESDAY...SO DON'T EXPECT MUCH OF WARM UP UNTIL MIDWEEK. TEMP GUIDANCE IS IN GOOD AGREEMENT AND WILL GENERALLY FOLLOW. DO PLAN TO TRIM HIGHS A CAT ON MONDAY WITH LOW CLOUDS AND BRISK NORTH WINDS. IN THE EXTENDED...ALL THE MEDIUM RANGE MODELS SHOWING THE SAME GENERAL TREND OF LARGE RIDGE OVER THE WRN U.S. BEGINNING TO FLATTEN OUT AS IT MOVES S OF LARGE VORTEX OVER ERN CANADA. WHILE THERE ARE DIFFERENCES IN THE DETAILS...DON'T SEE ANY FOCUS FOR RAIN IN THE EXTENDED. MRF GUIDANCE TEMPS FALL IN LINE WITH 850MB TEMPS AND WILL FOLLOW. .STL...NONE BRITT
The office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 4, 5:13 PM CDT | Severe Thunderstorm Warning | LSX | Monroe | 47 min |
| Jun 4, 5:35 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Boone | 55 min |
| Jun 4, 5:47 PM CDT | Severe Thunderstorm Warning | LSX | Pike | 43 min |
| Jun 4, 5:55 PM CDT | Severe Thunderstorm Warning | LSX | Audrain, Ralls | 50 min |
| Jun 4, 6:25 PM CDT | Severe Thunderstorm Warning | LSX | Boone, Moniteau | 50 min |
| Jun 4, 6:30 PM CDT | Tornado Warning | LSX | Montgomery | 30 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 2000Every severe thunderstorm warning in 2000
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.