Alert archive / Missouri / Severe Thunderstorm Watches in 2000

Severe Thunderstorm Watch 371

May 26, 20009 counties in Illinois; 36 counties in Missouri

The Storm Prediction Center issued this severe thunderstorm watch at May 26, 2000, 9:30 PM CDT for 9 counties in Illinois; 36 counties in Missouri. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
May 26, 2000, 9:30 PM CDT (02:30 UTC)
Expired
May 27, 2000, 3:00 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 45 counties

Calhoun County, IL, Greene County, IL, Jersey County, IL, Macoupin County, IL, Madison County, IL, Monroe County, IL, Pike County, IL, Saint Clair County, IL, Scott County, IL, Audrain County, MO, Boone County, MO, Callaway County, MO, Camden County, MO, Chariton County, MO, City of Saint Louis, MO, Cole County, MO, Cooper County, MO, Crawford County, MO, Dent County, MO, Franklin County, MO, Gasconade County, MO, Howard County, MO, Iron County, MO, Jefferson County, MO, Lincoln County, MO, Macon County, MO, Maries County, MO, Miller County, MO, Moniteau County, MO, Monroe County, MO, Montgomery County, MO, Morgan County, MO, Osage County, MO, Phelps County, MO, Pike County, MO, Pulaski County, MO, Ralls County, MO, Randolph County, MO, Saint Charles County, MO, Saint Francois County, MO, Saint Louis County, MO, Sainte Genevieve County, MO, Shelby County, MO, Warren County, MO, Washington County, MO

The radar

The St Louis radar (KLSX), 98 km from the middle of the area, began a volume at 02:32 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.

Warnings issued inside it

18 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
May 26, 9:41 PM CDTSevere Thunderstorm WarningLSXBoone49 min
May 26, 9:45 PM CDTSevere Thunderstorm WarningEAXCooper60 min
May 26, 9:53 PM CDTTornado WarningLSXMonroe37 min
May 26, 9:56 PM CDTSevere Thunderstorm WarningLSXAudrain, Marion, Ralls49 min
May 26, 10:16 PM CDTTornado WarningSGFMorgan44 min
May 26, 10:17 PM CDTSevere Thunderstorm WarningLSXBoone, Callaway43 min
May 26, 10:18 PM CDTSevere Thunderstorm WarningLSXAudrain27 min
May 26, 10:22 PM CDTSevere Thunderstorm WarningLSXAdams, Pike38 min
May 26, 10:22 PM CDTSevere Thunderstorm WarningLSXPike38 min
May 26, 10:30 PM CDTFlash Flood WarningEAXCooper, Pettis3 hr
May 26, 10:42 PM CDTSevere Thunderstorm WarningILXMorgan, Scott63 min
May 26, 10:47 PM CDTSevere Thunderstorm WarningLSXBrown, Pike43 min
May 26, 10:49 PM CDTTornado WarningLSXPike26 min
May 26, 11:06 PM CDTTornado WarningLSXCalhoun, Pike39 min
May 26, 11:19 PM CDTSevere Thunderstorm WarningLSXCalhoun, Greene41 min
May 26, 11:45 PM CDTSevere Thunderstorm WarningILXMorgan, Scott45 min
May 27, 12:30 AM CDTFlash Flood WarningLSXBoone, Callaway, Cole, Moniteau, Osage6 hr
May 27, 1:35 AM CDTFlash Flood WarningEAXCooper, Pettis6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 2.5 hours before the alert went out and 287 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.

Skew-T log-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 2000-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1527 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 00:00Z on 2000-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 125 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1527 J/kg
Mixed-layer CIN
-12 J/kg
Mixed-layer LCL
1270 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
125 m²/s²
0-3 km storm-relative helicity
163 m²/s²
Significant tornado parameter
1.0
Supercell composite
10.2

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 27, 12:00 AM CDTSevere Thunderstorm WatchSPCBond, Christian, Clark, Clay, Clinton, Coles and 35 more6 hr
May 26, 10:00 PM CDTSevere Thunderstorm WatchSPCBarry, Carter, Christian, Douglas, Howell, McDonald and 5 more6 hr
May 26, 11:00 PM CDTSevere Thunderstorm WatchSPCBarton, Bates, Benton, Cass, Cedar, Christian and 9 more6 hr
May 27, 10:45 AM CDTSevere Thunderstorm WatchSPCButler, Dunklin, Mississippi, New Madrid, Oregon, Pemiscot and 2 more5 hr

Nearby

Severe Thunderstorm Watches in Missouri, 2000Severe Thunderstorm Watches in Illinois, 2000Every severe thunderstorm watch 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.