Alert archive / Missouri / Special Weather Statements in 2011
Special Weather Statement, NWS Kansas City, MO
NWS Kansas City, MO issued this special weather statement at Aug 22, 2011, 6:45 AM CDT for Andrew County, Missouri. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 22, 2011, 6:45 AM CDT (11:45 UTC)
- Expired
- Aug 22, 2011, 7:30 AM CDT
- In force
- 45 min
- Issued by
- NWS Kansas City, MO
County Andrew County, MO
The radar
The Pleasant Hill radar (KEAX), 124 km from the middle of the area, began a volume at 11:45 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
Omaha, NE (KOAX), launched 00:00Z, 11.8 hours before the alert went out and 210 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
- 522 J/kg
- Mixed-layer CIN
- -142 J/kg
- Mixed-layer LCL
- 1127 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 217 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 5.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Aug 22, 6:30 AM CDT, 15 minutes earlier.
Area forecast discussion, Aug 22, 6:30 AM CDT, 15 minutes before
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</html>Hazardous weather outlook, Aug 22, 5:15 AM CDT, 1 hour 30 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO 515 AM CDT MON AUG 22 2011 KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040- 043>046-053-054-231100- 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- 515 AM CDT MON AUG 22 2011 THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHWEST...NORTH CENTRAL AND WEST CENTRAL MISSOURI...AS WELL AS EXTREME EASTERN KANSAS. .DAY ONE...TODAY AND TONIGHT SCATTERED THUNDERSTORMS ONGOING EARLY MONDAY ACROSS NORTHERN PORTIONS OF THE OUTLOOK AREA ARE EXPECTED TO DISSIPATE BY MID-MORNING. HOWEVER...ADDITIONAL SCATTERED THUNDERSTORMS MAY DEVELOP DURING THE LATE MORNING AND AFTERNOON HOURS ACROSS WESTERN MISSOURI...WITH THE ACTIVITY LINGERING THROUGH THE NIGHT. ANY OF TODAYS STORMS WILL HAVE THE POTENTIAL TO PRODUCE LARGE HAIL AND GUSTY WINDS...ALONG WITH PERIODS OF HEAVY RAIN. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY ANOTHER ROUND OF THUNDERSTORMS WILL BE POSSIBLE FROM NORTH CENTRAL INTO NORTHEAST MISSOURI TUESDAY AFTERNOON AND EVENING. DUE TO A WARM LAYER OF AIR IN THE LOW TO MIDDLE LAYER OF THE ATMOSPHERE...THE SEVERE WEATHER RISK APPEARS LOW AT THIS TIME. HOWEVER...ANY STORMS THAT ARE ABLE TO OVERCOME THIS LAYER OF WARM AIR WOULD BECOME SEVERE QUICKLY. DAMAGING WINDS AND LARGE HAIL WILL BE THE PRIMARY THREATS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT ANTICIPATED THROUGH TONIGHT DUE TO THE SCATTERED AND INTERMITTENT NATURE OF THE SEVERE THREAT. CUTTER
In the hours before
Special weather statement, Aug 22, 6:04 AM CDT, 41 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
604 AM CDT MON AUG 22 2011
MOZ001-221145-
ATCHISON MO-
604 AM CDT MON AUG 22 2011
...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN ATCHISON COUNTY
UNTIL 645 AM CDT...
AT 559 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR HAMBURG...OR 16 MILES NORTHWEST OF TARKIO...
MOVING SOUTHEAST AT 30 MPH.
HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 40 MPH ARE
EXPECTED WITH THIS STORM.
THIS STORM WILL BE NEAR...
WATSON AROUND 615 AM CDT.
ROCKPORT AND PHELPS CITY AROUND 625 AM CDT.
TARKIO AROUND 630 AM CDT.
THIS WILL IMPACT
I-29 BETWEEN MILE MARKERS 106 AND 123.
IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.
LAT...LON 4058 9539 4044 9529 4031 9558 4044 9564
4050 9569 4053 9564 4056 9566 4056 9569
4058 9571 4058 9552
TIME...MOT...LOC 1104Z 332DEG 25KT 4057 9557
DBSpecial weather statement, Aug 22, 6:45 AM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
645 AM CDT MON AUG 22 2011
MOZ012-013-020-021-221230-
ANDREW MO-BUCHANAN MO-CLINTON MO-DE KALB MO-
645 AM CDT MON AUG 22 2011
...SIGNIFICANT WEATHER ADVISORY FOR ANDREW...SOUTHWESTERN DEKALB...
NORTHWESTERN CLINTON AND EASTERN BUCHANAN COUNTIES UNTIL 730 AM
CDT...
AT 641 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR SAVANNAH...MOVING SOUTHEAST AT 40 MPH.
HAIL UP TO THE SIZE OF NICKELS AND WIND GUSTS UP TO 50 MPH ARE
EXPECTED WITH THIS STORM.
THIS STORM WILL BE NEAR...
COUNTRY CLUB VILLA AROUND 655 AM CDT.
COSBY AND HELENA AROUND 700 AM CDT.
CLARKSDALE AROUND 710 AM CDT.
EASTON AROUND 715 AM CDT.
STEWARTSVILLE AROUND 720 AM CDT.
THIS WILL IMPACT THE FOLLOWING INTERSTATES...
I-29 BETWEEN MILE MARKERS 40 AND 65.
I-229 BETWEEN MILE MARKERS 0 AND 14.
IF THREATENING WEATHER APPROACHES YOUR AREA...TAKE SHELTER IN A
STURDY BUILDING.
LAT...LON 3992 9461 3969 9443 3956 9473 3973 9486
3977 9486 3977 9489 3979 9490 3982 9487
3984 9489 3984 9493 3987 9494 3988 9493
3990 9496 4003 9501 4011 9480
TIME...MOT...LOC 1145Z 326DEG 33KT 3997 9481
DBThe office that day
Everything else NWS Kansas City, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 22, 5:06 AM CDT | Severe Thunderstorm Warning | EAX | Atchison, Nodaway | 39 min |
| Aug 22, 5:43 AM CDT | Severe Thunderstorm Warning | EAX | Atchison, Holt, Nodaway | 47 min |
| Aug 22, 6:04 AM CDT | Special Weather Statement | EAX | Atchison | 41 min |
| Aug 22, 6:12 AM CDT | Severe Thunderstorm Warning | EAX | Andrew, Holt, Nodaway | 33 min |
| Aug 22, 7:20 AM CDT | Special Weather Statement | EAX | Clinton | 25 min |
| Aug 22, 7:43 AM CDT | Special Weather Statement | EAX | Clay, Clinton | 32 min |
| Aug 22, 8:09 AM CDT | Special Weather Statement | EAX | Clay, Ray | 36 min |
| Aug 22, 9:46 AM CDT | Areal Flood Advisory | EAX | Atchison, Leavenworth | 4 hr |
| Aug 22, 10:15 AM CDT | Areal Flood Advisory | EAX | Johnson, Leavenworth, Wyandotte | 3 hr |
| Aug 22, 12:29 PM CDT | River Flood Warning | EAX | Atchison, Leavenworth | 20 hr |
| Aug 22, 12:29 PM CDT | River Flood Warning | EAX | Leavenworth | 20 hr |
Nearby
Special Weather Statements in Missouri, 2011Every special weather statement in 2011
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.