Alert archive / Iowa / Severe Thunderstorm Warnings in 1995
Severe Thunderstorm Warning 110, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Sep 6, 1995, 7:41 AM CDT for Butler County, Iowa. It was in force for 34 min.
The area
The counties it named.
The facts
- Issued
- Sep 6, 1995, 7:41 AM CDT (12:41 UTC)
- Expired
- Sep 6, 1995, 8:15 AM CDT
- In force
- 34 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Butler County, IA
The radar
The Des Moines radar (KDMX), 135 km from the middle of the area, began a volume at 12:45 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
Davenport, (KDVN), launched 12:00Z, 0.7 hours before the alert went out and 226 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
- 149 J/kg
- Mixed-layer CIN
- -172 J/kg
- Mixed-layer LCL
- 1302 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 198 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KDSM 061239 RRA
SVRDSM
IAC023-061315-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
741 AM CDT WED SEP 6 1995
* SEVERE THUNDERSTORM WARNING FOR
SOUTHERN BUTLER COUNTY - NORTH CENTRAL IOWA
* UNTIL 815 AM CDT
* SOME TOWNS AFFECTED
AUSTINVILLE
APLINGTON
PARKERSBURG
* AT 737 AM CDT RADAR INDICATED A SEVERE THUNDERSTORM NEAR AUSTINVILLE
OR 35 MILES WEST OF WATERLOO MOVING EAST AT 25 MPH\.
* THE STORM WILL BE APLINGTON BY 750 AM AND PARKERSBURG BY 755 AM.
THIS IS A DANGEROUS STORM. DO NOT GO OUTDOORS. 50 MPH WINDS ALONG WITH
PEA SIZE HAIL WERE REPORTED AT APLINGTON AT 735 AM.
JUNGBLUTHWhat 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, Sep 6, 3:28 AM CDT, 4 hours 13 minutes before
IAZ004>011-015>019-023>030-060900- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 328 AM CDT WED SEP 6 1995 THE SEVERE THUNDERSTORM WATCH FOR EMMET...PALO ALTO AND POCAHONTAS COUNTIES HAS BEEN CANCELLED. HOWEVER...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR THE REST OF NORTH CENTRAL AND NORTHEAST IOWA UNTIL 700 AM. STRONG THUNDERSTORMS CONTINUE TO MOVE EAST INTO THE WATCH AREA. THE LEADING EDGE OF THESE STORMS HAVE THE HIGHEST POTENTIAL TO PRODUCE LARGE HAIL AND DAMAGING WINDS. PYTLAK
Special weather statement, Sep 6, 4:00 AM CDT, 3 hours 41 minutes before
IAZ004>011-015>019-023>030-061000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 400 AM CDT WED SEP 6 1995 THE SEVERE THUNDERSTORM WATCH FOR NORTH CENTRAL AND NORTHEAST IOWA HAS BEEN CANCELLED. THE RISK OF SEVERE WEATHER HAS ENDED FOR NORTH CENTRAL AND NORTHEAST IOWA THIS MORNING. HOWEVER...THERE IS A MODERADTE RISK OF SEVERE THUNDERSTORMS LATER ON THIS AFTERNOON. A SEVERE WEATHER OUTLOOK DETAILING THIS THREAT WILL BE ISSUED BY 500 AM. PYTLAK
Special weather statement, Sep 6, 4:30 AM CDT, 3 hours 11 minutes before
IAZALL-0616000- IOWA SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IA 430 AM CDT WED SEP 6 1995 HAZARD...ISOLATED SEVERE THUNDERSTORMS WITH DAMAGING WINDS IN EXCESS OF 60 MPH. SOME HAIL AND A FEW TORNADOES ARE ALSO POSSIBLE. AREA OF CONCERN...THE NORTHEAST THIRD OF IOWA...NORTHEAST OF A LINE FROM ALGONA...TO BOONE...TO MUSCATINE. TIMING DETAILS...THE MAIN CHANCE OF SEVERE WEATHER WILL BE BETWEEN 100 AND 800 PM...WITH EARLIEST CHANCES NORTH OF HIGHWAY 30. METEOROLOGICAL COMMENTS...A COLD FRONT WILL MOVE SOUTHEASTWARD THROUGH IOWA AFTER NOON. THUNDERSTORMS OVER NORTHERN AND WESTERN IOWA THIS MORNING WILL PRODUCE AN OUTFLOW BOUNDARY WHICH IS EXPECTED TO LIE FROM COUNCIL BLUFFS TO DUBUQUE AT MIDDAY. THESE FEATURES ARE LIKELY TO BE THE FOCUS OF THUNDERSTORM REDEVELOPMENT THIS AFTERNOON. SURFACE DEWPOINTS NEAR 70 AND HIGH TEMPERATURES IN THE 80S...COMBINED WITH COOLING AT MID LEVELS OF THE ATMOSPHERE...WILL PRODUCE INSTABILITY FOR SEVERE THUNDERSTORM DEVELOPMENT. IN ADDITION...INCREASING WESTERLY JET STREAM WINDS WILL INTERACT WITH GUSTY SOUTHERLY SURFACE WINDS TO ENHANCE THE WIND GUST POTENTIAL OF THE STRONGER STORMS. PRECAUTIONS...SPOTTER NETWORKS MAY NEED TO BE ACTIVATED THIS AFTERNOON AND EARLY EVENING. SEVERE WEATHER POTENTIAL WILL ALSO BE MONITORED OVER SOUTHERN IOWA...WHERE THERE IS ALSO A RISK OF SEVERE THUNDERSTORMS LATER THIS AFTERNOON. THE NEXT STATEMENT WILL BE ISSUED AROUND 1000 AM. JUNGBLUTH
Special weather statement, Sep 6, 4:47 AM CDT, 2 hours 54 minutes before
IAZALL-0616000- IOWA SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IA 430 AM CDT WED SEP 6 1995 HAZARD...ISOLATED SEVERE THUNDERSTORMS WITH DAMAGING WINDS IN EXCESS OF 60 MPH. SOME HAIL AND A FEW TORNADOES ARE ALSO POSSIBLE. AREA OF CONCERN...THE NORTHEAST THIRD OF IOWA...NORTHEAST OF A LINE FROM ALGONA...TO BOONE...TO MUSCATINE. TIMING DETAILS...THE MAIN CHANCE OF SEVERE WEATHER WILL BE BETWEEN 100 AND 800 PM...WITH EARLIEST CHANCES NORTH OF HIGHWAY 30. METEOROLOGICAL COMMENTS...A COLD FRONT WILL MOVE SOUTHEASTWARD THROUGH IOWA AFTER NOON. THUNDERSTORMS OVER NORTHERN AND WESTERN IOWA THIS MORNING WILL PRODUCE AN OUTFLOW BOUNDARY WHICH IS EXPECTED TO LIE FROM COUNCIL BLUFFS TO DUBUQUE AT MIDDAY. THESE FEATURES ARE LIKELY TO BE THE FOCUS OF THUNDERSTORM REDEVELOPMENT THIS AFTERNOON. SURFACE DEWPOINTS NEAR 70 AND HIGH TEMPERATURES IN THE 80S...COMBINED WITH COOLING AT MID LEVELS OF THE ATMOSPHERE...WILL PRODUCE INSTABILITY FOR SEVERE THUNDERSTORM DEVELOPMENT. IN ADDITION...INCREASING WESTERLY JET STREAM WINDS WILL INTERACT WITH GUSTY SOUTHERLY SURFACE WINDS TO ENHANCE THE WIND GUST POTENTIAL OF THE STRONGER STORMS. PRECAUTIONS...SPOTTER NETWORKS MAY NEED TO BE ACTIVATED THIS AFTERNOON AND EARLY EVENING. SEVERE WEATHER POTENTIAL WILL ALSO BE MONITORED OVER SOUTHERN IOWA...WHERE THERE IS ALSO A RISK OF SEVERE THUNDERSTORMS LATER THIS AFTERNOON. THE NEXT STATEMENT WILL BE ISSUED AROUND 1000 AM. JUNGBPLUTH
Nearby
Severe Thunderstorm Warnings in Iowa, 1995Every severe thunderstorm warning in 1995
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.