Alert archive / Iowa / Severe Thunderstorm Warnings in 1994
Severe Thunderstorm Warning 85, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jun 11, 1994, 5:22 PM CDT for Appanoose County, Iowa. It was in force for 38 min.
The area
The counties it named.
The facts
- Issued
- Jun 11, 1994, 5:22 PM CDT (22:22 UTC)
- Expired
- Jun 11, 1994, 6:00 PM CDT
- In force
- 38 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Appanoose County, IA
The nearest sounding before it
Omaha, NE (KOAX), launched 12:00Z, 10.4 hours before the alert went out and 301 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1261 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 195 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KDSM 112225 SVRDSM IAC007-112300- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE DES MOINES IA 522 PM CDT SAT JUN 11 1994 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 600 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL IOWA ...APPANOOSE COUNTY AT 525 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 70 MILES SOUTH-SOUTHEAST OF DES MOINES NEAR THE WAYNE-APPANOOSE COUNTY LINE. THIS AREA IS WEST OF RATHBUN LAKE. THIS STORM IS MOVING EAST AT 25 MILES AN HOUR AND WILL BE AFFECTING RATHBUN LAKE BY 535 PM AND CENTERVILLE BY 545 PM CDT. LARGE HAIL AND BRIEF DAMAGING WINDS ARE LIKELY WITH THIS STORM. BOATERS AND CAMPERS ARE ADVISED TO SEEK SHELTER IMMEDIATELY. DEADLY LIGHTNING IS POSSIBLE IN SEVERE THUNDERSTORMS. STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
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.
In the hours before
Special weather statement, Jun 11, 4:23 PM CDT, 59 minutes before
IAZ094-093-095-112230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 422 PM CDT SAT JUN 11 1994 ...THUNDERSTORMS WITH SMALL HAIL WERE INTENSIFYING OVER EXTREME SOUTHERN IOWA... AT 420 PM CDT...WEATHER SERVICE DOPPLER RADAR DETECTED THREE DEVELOPING THUNDERSTORMS...ALL OF WHICH WERE CAPABLE OF PRODUCING UP TO MARBLE SIZED HAIL...OVER RINGGOLD AND DECATUR COUNTIES. ONE STORM WAS LOCATED JUST SOUTH OF MOUNT AYR...WHICH IS 65 MILES SOUTHWEST OF DES MOINES. THE OTHER TWO WERE ALONG INTERSTATE 35 BETWEEN LAMONI AND VAN WERT ABOUT 60 MILES SOUTH OF DES MOINES. THESE STORMS WERE MOVING EAST AT 20 MILES AN HOUR. PEOPLE IN THE PATH OF THESE STORMS SHOULD BE ON THE LOOKOUT FOR SMALL HAIL AND DANGEROUS CLOUD-TO-GROUND LIGHTNING. THE STORMS WILL MOVE INTO WAYNE COUNTY NEAR CORYDON AND CLIO BY 500 PM CDT. PYTLAK
Special weather statement, Jun 11, 4:36 PM CDT, 46 minutes before
IAZALL-112240- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 436 PM CDT SAT JUN 11 1994 AT 427 PM...A SMALL CLUSTER OF STRONG THUNDERSTORMS HAD DEVELOPED OVER SOUTH CENTRAL IOWA AROUND MOUNT AYR...LEON AND LAMONI OR SOME 45 TO 65 MILES SOUTH OF DES MOINES. THESE STORMS WILL PRODUCE BRIEF VERY HEAVY RAIN...PEA TO MARBLE SIZED HAIL...DEADLY CLOUD TO GROUND LIGHTNING AND WIND GUSTS OF 30 TO 40 MILES AN HOUR. THERE WAS ANOTHER CLUSTER OF THUNDERSTORMS OVER NORTHEAST IOWA...MOST OF THESE STORMS WERE WITHIN A 35 MILE RADIUS OF DUBUQUE. A FEW OF THESE STORMS WILL ALSO PRODUCE HEAVY RAIN...SMALL HAIL AND DEADLY LIGHTNING. THE STORMS WERE MOVING EAST AT 20 TO 25 MILES AN HOUR. BARLOW
Special weather statement, Jun 11, 5:02 PM CDT, 20 minutes before
IAZ054-112300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DUBUQUE IA ISSUED BY WATERLOO IA 502 PM CDT SAT JUN 11 1994 ...A STRONG THUNDERSTORM WILL PASS JUST NORTH OF MAQUOKETA... AT 500 PM RADAR INDICATED A STRONG THUNDERSTORM 10 MILES SOUTH OF DUBUQUE IN JACKSON COUNTY. THIS STORM WILL PRODUCE BRIEF HEAVY RAIN...DEADLY LIGHTNING...1/4 TO 1/2 INCH HAIL AS IT MOVES EAST AT 30 MPH. TOWNS TO BE AFFECTED BY THE STORM INCLUDE BELLEVUE...SPRINGBROOK AND GREEN ISLAND. THE STORM WILL HAVE MOVED INTO ILLINOIS BY 545 PM. IF YOU HAVE OUTDOOR ACTIVITIES YOU MAY WANT TO MOVE INDOORS UNTIL THE STORM HAS PASSED. COLLAR
Special weather statement, Jun 11, 5:16 PM CDT, 6 minutes before
IAZ096-095-112315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 516 PM CDT SAT JUN 11 1994 ...STRONG THUNDERSTORMS CONTINUED TO GRAZE THE IOWA-MISSOURI BORDER... PEOPLE IN WAYNE AND APPANOOSE COUNTIES CAN EXPECT THUNDERSTORMS TO ROLL THROUGH THE AREA BEFORE 600 PM. SOME OF THE STORMS COULD PRODUCE UP TO MARBLE SIZED HAIL AND FREQUENT LIGHTNING. WEATHER SERVICE DOPPLER RADAR SHOWED A CLUSTER OF STRONG THUNDERSTORMS OVER SOUTHERN WAYNE COUNTY NEAR ALLERTON...WHICH IS 60 MILES SOUTH OF DES MOINES. THE STORM WAS MOVING EAST AT 25 MILES AN HOUR AND WAS CAPABLE OF PRODUCING SMALL HAIL. LIGHTNING DETECTION SYSTEMS ALSO SHOW NUMEROUS CLOUD-TO-GROUND LIGHTNING STRIKES WITH THIS CELL. IF YOU ARE IN THE PATH OF THESE STORMS...MOVE INDOORS...ESPECIALLY PEOPLE IN AND AROUND RATHBURN LAKE. IT IS DANGEORUS TO BE CAUGHT OUTDOORS DURING AN ELECTRICAL STORM. PYTLAK WUUS01KABQ -9
Special weather statement, Jun 11, 5:17 PM CDT, 5 minutes before
IAZ096-095-112315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 516 PM CDT SAT JUN 11 1994 ...STRONG THUNDERSTORMS CONTINUED TO GRAZE THE IOWA-MISSOURI BORDER... PEOPLE IN WAYNE AND APPANOOSE COUNTIES CAN EXPECT THUNDERSTORMS TO ROLL THROUGH THE AREA BEFORE 600 PM. SOME OF THE STORMS COULD PRODUCE UP TO MARBLE SIZED HAIL AND FREQUENT LIGHTNING. WEATHER SERVICE DOPPLER RADAR SHOWED A CLUSTER OF STRONG THUNDERSTORMS OVER SOUTHERN WAYNE COUNTY NEAR ALLERTON...WHICH IS 60 MILES SOUTH OF DES MOINES. THE STORM WAS MOVING EAST AT 25 MILES AN HOUR AND WAS CAPABLE OF PRODUCING SMALL HAIL. LIGHTNING DETECTION SYSTEMS ALSO SHOW NUMEROUS CLOUD-TO-GROUND LIGHTNING STRIKES WITH THIS CELL. IF YOU ARE IN THE PATH OF THESE STORMS...MOVE INDOORS...ESPECIALLY PEOPLE IN AND AROUND RATHBURN LAKE. IT IS DANGEORUS TO BE CAUGHT OUTDOORS DURING AN ELECTRICAL STORM. PYTLAK
Special weather statement, Jun 11, 5:19 PM CDT, 3 minutes before
IAZ096-095-112315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 516 PM CDT SAT JUN 11 1994 ...STRONG THUNDERSTORMS CONTINUED TO GRAZE THE IOWA-MISSOURI BORDER... PEOPLE IN WAYNE AND APPANOOSE COUNTIES CAN EXPECT THUNDERSTORMS TO ROLL THROUGH THE AREA BEFORE 600 PM. SOME OF THE STORMS COULD PRODUCE UP TO MARBLE SIZED HAIL AND FREQUENT LIGHTNING. WEATHER SERVICE DOPPLER RADAR SHOWED A CLUSTER OF STRONG THUNDERSTORMS OVER SOUTHERN WAYNE COUNTY NEAR ALLERTON...WHICH IS 60 MILES SOUTH OF DES MOINES. THE STORM WAS MOVING EAST AT 25 MILES AN HOUR AND WAS CAPABLE OF PRODUCING SMALL HAIL. LIGHTNING DETECTION SYSTEMS ALSO SHOW NUMEROUS CLOUD-TO-GROUND LIGHTNING STRIKES WITH THIS CELL. IF YOU ARE IN THE PATH OF THESE STORMS...MOVE INDOORS...ESPECIALLY PEOPLE IN AND AROUND RATHBURN LAKE. IT IS DANGEORUS TO BE CAUGHT OUTDOORS DURING AN ELECTRICAL STORM. PYTLAK
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 7:16 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 29 min |
| Jun 10, 7:36 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 39 min |
| Jun 10, 7:57 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 33 min |
| Jun 10, 8:29 PM CDT | Severe Thunderstorm Warning | DMX | Adams | 31 min |
| Jun 10, 8:39 PM CDT | Severe Thunderstorm Warning | DMX | Union | 36 min |
| Jun 11, 5:51 PM CDT | Severe Thunderstorm Warning | DMX | Davis | 39 min |
| Jun 11, 6:21 PM CDT | Severe Thunderstorm Warning | DMX | Van Buren | 39 min |
| Jun 11, 6:32 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold | 17 min |
| Jun 11, 6:32 PM CDT | Severe Thunderstorm Warning | DMX | Decatur | 43 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1994Every severe thunderstorm warning in 1994
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.