Alert archive / Iowa / Severe Thunderstorm Warnings in 1995
Severe Thunderstorm Warning 92, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jul 27, 1995, 2:18 PM CDT for Allamakee County, Iowa. It was in force for 93 min.
The area
The counties it named.
The facts
- Issued
- Jul 27, 1995, 2:18 PM CDT (19:18 UTC)
- Expired
- Jul 27, 1995, 3:51 PM CDT
- In force
- 93 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Allamakee County, IA
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 7.3 hours before the alert went out and 199 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
- 832 J/kg
- Mixed-layer CIN
- -65 J/kg
- Mixed-layer LCL
- 851 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 115 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 KALO 271920 RRA SVRALO IAC005-272000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE WATERLOO IA 218 PM CDT THU JUL 27 1995 THE NATIONAL WEATHER SERVICE IN WATERLOO HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 300 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHEAST IOWA ...SOUTHERN ALLAMAKEE COUNTY AT 218PM CDT...NATIONAL WEATHER SERVICE RADAR IN WATERLOO INDICATED A SEVERE THUNDERSTORM JUST WEST OF POSTVILLE OR 55 MILES NORTHWEST OF DUBUQUE. THIS STORM IS MOVING EAST AND WILL AFFECT THE COMMUNITIES OF POSTVILLE...ROSSVILLE AND WAUKON JUNCTION. THIS IS A DANGEROUS STORM. IF YOU ARE OUTSIDE SEEK SHELTER AT ONCE INSIDE A REINFORCED BUILDING. PREPARE FOR DAMAGING WINDS IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY LIGHTNING. COGIL
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, Jul 27, 10:11 AM CDT, 4 hours 7 minutes before
IAZALL-271800- IOWA SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IOWA 1010 AM CDT THU JUL 27 1995 HAZARD...SEVERE THUNDERSTORMS PRODUCING HAIL AND HIGH WINDS. AREAS OF CONCERN...NORTHEAST IOWA...NORTH OF A LINE FROM FROM MASON CITY TO OLEWEIN...TO DUBUQUE. TIMING DETAILS...DURING THE NEXT 2 HOURS THUNDERSTORMS OVER SOUTHERN MINNESOTA WILL BUILD SOUTH INTO IOWA. METEOROLOGICAL COMMENTS...A STRONG STORM SYSTEM...FOR JULY...IS MOVING THROUGH THE UPPER MIDWEST. THUNDERSTORMS IN SOUTH CENTRAL MINNESOTA WILL MOVE SOUTH ALONG A WARM INTO NORTHEAST IOWA DURING THE NEXT 2 HOURS. THUNDERSTORMS ARE ALSO EXPECTED TO DEVELOP IN WESTERN IOWA AROUND MIDDAY AHEAD OF A COLD FRONT MOVING INTO THE STATE. PRECAUTIONS...PEOPLE IN NORTHEAST IOWA...ESPECIALLY THOSE BORDERING MINNESOTA SHOULD BE ON THE LOOKOUT FOR SEVERE WEATHER DURING THE LATE MORNING HOURS. TIMING OF THUDERSTORMS OVER WESTERN IOWA IS MORE UNCERTAIN. RIGHT NOW TH E BEST CHANCE APPEARS TO BE AROUND MIDDAY. PEOPLE IN THIS AREA SHOULD CONTINUE TO MONITOR LATER STATEMENTS. THE NEXT OUTLOOK WILL BE ISSUED AROUND NOON...UNLESS A WATCH OR WARNING IS ISSUED. BELLES
Special weather statement, Jul 27, 10:18 AM CDT, 4 hours before
IAZALL-271800- IOWA SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IOWA 1010 AM CDT THU JUL 27 1995 HAZARD...SEVERE THUNDERSTORMS PRODUCING HAIL AND HIGH WINDS. AREAS OF CONCERN...NORTHEAST IOWA...NORTH OF A LINE FROM FROM MASON CITY TO OLEWEIN...TO DUBUQUE. TIMING DETAILS...DURING THE NEXT 2 HOURS THUNDERSTORMS OVER SOUTHERN MINNESOTA WILL BUILD SOUTH INTO IOWA. METEOROLOGICAL COMMENTS...A STRONG STORM SYSTEM...FOR JULY...IS MOVING THROUGH THE UPPER MIDWEST. THUNDERSTORMS IN SOUTH CENTRAL MINNESOTA WILL MOVE SOUTH ALONG A WARM FRONT INTO NORTHEAST IOWA DURING THE NEXT 2 HOURS. THUNDERSTORMS ARE ALSO EXPECTED TO DEVELOP IN WESTERN IOWA AROUND MIDDAY AHEAD OF A COLD FRONT MOVING INTO THE STATE. PRECAUTIONS...PEOPLE IN NORTHEAST IOWA...ESPECIALLY THOSE BORDERING MINNESOTA SHOULD BE ON THE LOOKOUT FOR SEVERE WEATHER DURING THE LATE MORNING HOURS. TIMING OF THUDERSTORMS OVER WESTERN IOWA IS MORE UNCERTAIN. RIGHT NOW THE BEST CHANCE APPEARS TO BE AROUND MIDDAY. PEOPLE IN THIS AREA SHOULD CONTINUE TO MONITOR LATER STATEMENTS. THE NEXT OUTLOOK WILL BE ISSUED AROUND NOON...UNLESS A WATCH OR WARNING IS ISSUED. BELLES
Special weather statement, Jul 27, 12:16 PM CDT, 2 hours 2 minutes before
IAZ007-271750- SEVERE WEATHER OUTLOOK FOR IOWA NATIONAL WEATHER SERVICE DES MOINES IA 1217 PM CDT THU JUL 27 1995 ...SEVERE THUNDERSTORMS WARNING FOR WORTH COUNTY HAS EXPIRED... SEVERE WEATHER HAS MOVED INTO NORTHWEST MITCHELL COUNTY. THUNDERSTORMS WILL CONTINUE ACROSS THE NORTHERN PORTION OF WORTH COUNTY NORTH OF THE TOWNS OF NORTHWOOD. THESE THUNDERSTORMS ARE NOT ANTICIPATED TO BE SEVERE. BELLES
Special weather statement, Jul 27, 12:17 PM CDT, 2 hours 1 minute before
IAZ007-271750- SEVERE WEATHER OUTLOOK FOR IOWA NATIONAL WEATHER SERVICE DES MOINES IA 1217 PM CDT THU JUL 27 1995 ...SEVERE THUNDERSTORMS WARNING FOR WORTH COUNTY HAS EXPIRED... SEVERE WEATHER HAS MOVED INTO NORTHWEST MITCHELL COUNTY. THUNDERSTORMS WILL CONTINUE ACROSS THE NORTHERN PORTION OF WORTH COUNTY NORTH OF THE TOWNS OF NORTHWOOD. THESE THUNDERSTORMS ARE NOT ANTICIPATED TO BE SEVERE. BELLES
Special weather statement, Jul 27, 1:10 PM CDT, 1 hour 8 minutes before
IAZALL-272000- IOWA SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IOWA 110 PM CDT THU JUL 27 1995 HAZARD...SEVERE THUNDERSTORMS PRODUCING HAIL AND HIGH WINDS. AREAS OF CONCERN...NORTHEAST IOWA...EAST OF A LINE FROM MASON CITY TO MARSHALLTOWN TO IOWA CITY. TIMING DETAILS...REMAINDER OF THE AFTERNOON. METEOROLOGICAL COMMENTS...A STRONG LOW PRESSURE SYSTEM...FOR JULY...NEAR SPENCER IOWA WILL MOVE EAST ACROSS EXTREME NORTHEAST IOWA THIS AFTERNOON. SCATTERED SEVERE THUNDERSTORMS WILL DEVELOP ALONG A WARM FRONT EXTENDING EAST FROM THE LOW. ALTHOUGH THE MAIN THREAT WILL BE DAMAGING WINDS AND HAIL...A FAVORABLE WIND PROFILE NEAR THE LOW SUGGESTS THAT ISOLATED TORNADOES ARE POSSIBLE. KUBINA
Special weather statement, Jul 27, 1:12 PM CDT, 1 hour 6 minutes before
IAZALL-272000- IOWA SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE DES MOINES IOWA 110 PM CDT THU JUL 27 1995 HAZARD...SEVERE THUNDERSTORMS PRODUCING HAIL AND HIGH WINDS. AREAS OF CONCERN...NORTHEAST IOWA...EAST OF A LINE FROM MASON CITY TO MARSHALLTOWN TO IOWA CITY. TIMING DETAILS...REMAINDER OF THE AFTERNOON. METEOROLOGICAL COMMENTS...A STRONG LOW PRESSURE SYSTEM...FOR JULY...NEAR SPENCER IOWA WILL MOVE EAST ACROSS EXTREME NORTHEAST IOWA THIS AFTERNOON. SCATTERED SEVERE THUNDERSTORMS WILL DEVELOP ALONG A WARM FRONT EXTENDING EAST FROM THE LOW. ALTHOUGH THE MAIN THREAT WILL BE DAMAGING WINDS AND HAIL...A FAVORABLE WIND PROFILE NEAR THE LOW SUGGESTS THAT ISOLATED TORNADOES ARE POSSIBLE. KUBINA
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 27, 11:35 AM CDT | Severe Thunderstorm Warning | DMX | Mitchell | 25 min |
| Jul 27, 11:49 AM CDT | Severe Thunderstorm Warning | DMX | Worth | 26 min |
| Jul 27, 12:03 PM CDT | Severe Thunderstorm Warning | DMX | Mitchell | 27 min |
| Jul 27, 12:25 PM CDT | Severe Thunderstorm Warning | DMX | Mitchell | 50 min |
| Jul 27, 12:36 PM CDT | Severe Thunderstorm Warning | DMX | Howard | 39 min |
| Jul 27, 1:52 PM CDT | Severe Thunderstorm Warning | DMX | Chickasaw, Fayette, Winneshiek | 38 min |
| Jul 27, 2:44 PM CDT | Severe Thunderstorm Warning | DMX | Fayette | 46 min |
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.