Alert archive / Missouri / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 215, NWS Kansas City, MO
NWS Kansas City, MO issued this severe thunderstorm warning at Jul 10, 2009, 5:38 AM CDT for 6 counties in Missouri. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 10, 2009, 5:38 AM CDT (10:38 UTC)
- Expired
- Jul 10, 2009, 6:15 AM CDT
- In force
- 37 min
- Issued by
- NWS Kansas City, MO
- Area
- Storm-based polygon
Counties Carroll County, MO, Johnson County, MO, Lafayette County, MO, Pettis County, MO, Ray County, MO, Saline County, MO
The radar
The Pleasant Hill radar (KEAX), 65 km from the middle of the area, began a volume at 10:41 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.
The nearest sounding before it
Topeka, KS (KTOP), launched 00:00Z, 10.6 hours before the alert went out and 177 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
- 837 J/kg
- Mixed-layer CIN
- -362 J/kg
- Mixed-layer LCL
- 1778 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 142 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
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 Jul 10, 4:02 AM CDT, 1 hour 36 minutes earlier.
Area forecast discussion, Jul 10, 4:02 AM CDT, 1 hour 36 minutes before
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HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 110 PM CDT THU JUL 9 2009 KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-101815- ATCHISON KS-MIAMI-LINN KS-DONIPHAN-LEAVENWORTH-WYANDOTTE- JOHNSON KS-ATCHISON MO-NODAWAY-WORTH-GENTRY-HARRISON-MERCER- PUTNAM-SCHUYLER-HOLT-ANDREW-DE KALB-DAVIESS-GRUNDY-SULLIVAN-ADAIR- BUCHANAN-CLINTON-CALDWELL-LIVINGSTON-LINN MO-MACON-PLATTE-CLAY- RAY-CARROLL-CHARITON-RANDOLPH-JACKSON-LAFAYETTE-SALINE-HOWARD- CASS-JOHNSON MO-PETTIS-COOPER-BATES-HENRY- 110 PM CDT THU JUL 9 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST...NORTH CENTRAL AND WEST CENTRAL MISSOURI...AS WELL AS EXTREME EASTERN KANSAS. .DAY ONE...THIS AFTERNOON AND TONIGHT AN ONGOING COMPLEX OF THUNDERSTORMS WILL CONTINUE TO TRACK FROM SOUTHWEST IOWA INTO NORTHWEST AND NORTH CENTRAL MISSOURI THIS AFTERNOON. THE STORMS WITHIN THIS COMPLEX HAVE SHOWN A WEAKENING TREND...BUT STILL ARE CAPABLE PRODUCING GUSTY WINDS AND POSSIBLY PEA- SIZED HAIL. A MODERATELY UNSTABLE AIRMASS AND INCREASING SURFACE TEMPERATURES ACROSS NORTHWEST MISSOURI AND NORTHEAST KANSAS WILL CONTINUE TO SUSTAIN THE COMPLEX...AND MAY ALLOW FOR ADDITIONAL DEVELOPMENT FURTHER WESTWARD INTO NORTHEAST KANSAS...THOUGH DEVELOPMENT WILL BE HAMPERED BY WARMER TEMPERATURES IN THE MID-LEVELS OF THE ATMOSPHERE AS THE COMPLEX MOVES SOUTHWARD. IT IS POSSIBLE THAT THE COMPLEX OF STORMS COULD HOLD TOGETHER AND IMPACT AREAS AS FAR SOUTH AS THE INTERSTATE 70 CORRIDOR BY THE MID- TO LATE AFTERNOON HOURS. CURRENT THINKING IS THAT IN GENERAL STORMS WILL REMAIN BELOW SEVERE LIMITS...BUT AN ISOLATED SEVERE STORM IS NOT OUT OF THE QUESTION...WITH THE MAIN THREAT BEING FROM DAMAGING WINDS. LATER TONIGHT...ANOTHER COMPLEX OF STORMS IS EXPECTED TO DEVELOP ACROSS NEBRASKA AND IOWA AND MAY MOVE INTO THE AREA FROM THE NORTH. THIS COMPLEX WOULD LIKELY AFFECT AREAS OF NORTH OF HIGHWAY 36 DURING THE LATE EVENING HOURS BEFORE MOVING SOUTHWARD TOWARD THE MISSOURI RIVER VALLEY AFTER MIDNIGHT. THE MAIN HAZARD FROM THIS COMPLEX OF STORMS WOULD BE FROM HIGH WINDS BUT LARGE HAIL WOULD BE POSSIBLE INITIALLY IN THE MORE ROBUST THUNDERSTORM UPDRAFTS. AS THE COMPLEX SLIDES SOUTHWARD IT IS LIKELY THAT A TRANSITION TO MORE OF HEAVY RAIN EVENT...ALTHOUGH STRONG WINDS WOULD STILL BE POSSIBLE. HEAT INDEX VALUES MAY REACH THE LOW 100S ACROSS EAST CENTRAL KANSAS AND CENTRAL MISSOURI THIS AFTERNOON. INCREASING CLOUD COVER LATER THIS AFTERNOON...WILL LESSEN THE HEAT THREAT. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY A FRONTAL BOUNDARY WILL MOVE INTO THE AREA TONIGHT WHICH WILL ACT AS A TRIGGER FOR THUNDERSTORMS THROUGH THE WEEKEND. WHILE DEPENDENT UPON HOW MUCH CLOUD COVER IS LEFT OVER FROM THE THUNDERSTORM COMPLEX FRIDAY MORNING...IF THERE IS ENOUGH RECOVERY IN INSTABILITY...SHEAR IS STRONG ENOUGH TO PRODUCE A FEW SEVERE THUNDERSTORMS BY FRIDAY EVENING. THE MAIN HAZARDS FROM THESE STORMS WOULD LARGE HAIL AND DAMAGING WINDS. BY SATURDAY...THE PATTERN BECOMES TO MURKY TO DETERMINE WHETHER SEVERE STORMS ARE POSSIBLE. HEAT INDEX VALUES MAY ALSO REACH INTO THE LOWER 100S FRIDAY AFTERNOON SOUTH OF THE FRONTAL BOUNDARY. THESE HIGH READINGS WILL BE DEPENDENT UPON HOW MUCH RESIDUAL CLOUD COVER REMAINS DURING THE PEAK HEATING OF THE AFTERNOON. IF CLOUDS LINGER INTO THE AFTERNOON HOURS...THESE HIGH HEAT INDEX VALUES WILL NOT BE REALIZED. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON AND AGAIN DURING THE OVERNIGHT HOURS. 24
In the hours before
Special weather statement, Jul 10, 3:26 AM CDT, 2 hours 12 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
326 AM CDT FRI JUL 10 2009
KSZ102-MOZ011-012-100900-
ANDREW-DONIPHAN-HOLT-
326 AM CDT FRI JUL 10 2009
...SIGNIFICANT WEATHER ALERT FOR NORTHERN DONIPHAN...SOUTHEASTERN
HOLT AND SOUTHWESTERN ANDREW COUNTIES UNTIL 400 AM CDT...
AT 324 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR WHITE CLOUD...OR 8 MILES NORTHWEST OF
HIGHLAND...MOVING EAST AT 30 MPH.
PENNY SIZE HAIL...AND WINDS UP TO 50 MPH ARE POSSIBLE WITH THIS
STORM. VERY HEAVY RAINFALL WILL ALSO BE OCCURRING ALONG WITH
FREQUENT LIGHTNING.
THIS STORM WILL BE NEAR...
WHITE CLOUD AND HIGHLAND AROUND 330 AM CDT.
FOREST CITY AROUND 340 AM CDT.
OREGON AROUND 345 AM CDT.
FILLMORE AROUND 400 AM CDT.
THE TOWN OF IOWA POINT IS ALSO IN THE PATH OF THIS STORM.
LAT...LON 3999 9533 4000 9531 4001 9533 4005 9489
3983 9490 3985 9534
PCSpecial weather statement, Jul 10, 3:46 AM CDT, 1 hour 52 minutes before
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</html>Local storm report, Jul 10, 3:56 AM CDT, 1 hour 42 minutes before
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</html>Local storm report, Jul 10, 5:02 AM CDT, 36 minutes before
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</html>The office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 3:11 AM CDT | Special Weather Statement | EAX | Andrew, Holt | 34 min |
| Jul 10, 3:46 AM CDT | Special Weather Statement | EAX | Ray | 29 min |
| Jul 10, 3:51 AM CDT | Severe Thunderstorm Warning | EAX | Andrew, Buchanan, Holt | 39 min |
| Jul 10, 4:29 AM CDT | Severe Thunderstorm Warning | EAX | Buchanan, Clinton, DeKalb | 31 min |
| Jul 10, 4:57 AM CDT | Severe Thunderstorm Warning | EAX | Caldwell, Carroll, Livingston, Ray | 30 min |
| Jul 10, 5:20 AM CDT | Special Weather Statement | EAX | Ray | 25 min |
| Jul 10, 6:45 AM CDT | Special Weather Statement | EAX | Pettis | 30 min |
| Jul 10, 7:46 AM CDT | Special Weather Statement | EAX | Pettis | 29 min |
| Jul 10, 9:44 AM CDT | River Flood Warning | EAX | Ray | 33 hr |
| Jul 10, 11:19 AM CDT | Special Weather Statement | EAX | Schuyler | 26 min |
| Jul 10, 2:51 PM CDT | River Flood Warning | EAX | Cooper, Saline | 36 hr |
| Jul 10, 3:26 AM CDT | Special Weather Statement | EAX | Doniphan | 34 min |
Nearby
Severe Thunderstorm Warnings in Missouri, 2009Every severe thunderstorm warning in 2009
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.