Alert archive / Iowa / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 92, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Sep 5, 1992, 9:28 PM CDT for Union County, Iowa. It was in force for 26 min.
The area
The counties it named.
The facts
- Issued
- Sep 5, 1992, 9:28 PM CDT (02:28 UTC)
- Expired
- Sep 5, 1992, 9:54 PM CDT
- In force
- 26 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Union County, IA
The nearest sounding before it
Omaha, NE (KOVN), launched 00:00Z, 2.5 hours before the alert went out and 181 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
- 1632 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 797 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KDSM 060227 SVRDSM IAC175-060315- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE DES MOINES IA 928 PM CDT SAT SEP 5 1992 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1015 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL IOWA ...NORTHEASTERN UNION COUNTY AT 920 PM CDT...DES MOINES RADAR DETECTED A SEVERE THUNDERSTORM 10 MILES NORTH OF THE TOWN OF AFTON...OR 35 MILES SOUTHWEST OF DES MOINES. THE THUNDERSTORM WAS MOVING SOUTHEAST AT 20 MPH. TOWNS IN THE PATH OF THIS STORM INCLUDE LORIMOR...AFTON...AND THAYER. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. SMITH~
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, Sep 5, 7:47 PM CDT, 1 hour 41 minutes before
IAZALL-060135- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 738 PM CDT SAT SEP 5 1992 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR A LARGE PORTION OF SOUTHWEST AND SOUTH CENTAL IOWA UNTIL 10 PM... AT 729 PM...SCATTERED SHOWERS AND THUNDERSTORMS...A FEW WITH VERY HEAVY RAIN...CONTINUED ACROSS WESTERN AND NORTH CENTRAL IOWA. THIS AREA WAS LOCATED WEST OF A LINE EXTENDING FROM CRESCO...TO 35 MILES WEST OF WATERLOO...TO 25 MILES WEST OF DES MOINES...TO 20 MILES WEST OF LAMONI. THUNDERSTORMS WITH HEAVY RAIN WERE LOCATED 10 MILES WEST OF OSAGE... FROM 15 MILES NORTHWEST OF MASON CITY TO NEAR DENISON...AND FROM NEAR ATLANTIC TO 20 MILES EAST OF ATLANTIC. MOVEMEN<T WAS EAST AT 15 MILES AN HOUR. R A PRENTICE
Special weather statement, Sep 5, 8:03 PM CDT, 1 hour 25 minutes before
IAZ006>011-016>019-026>029-038>040-060400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WATERLOO IA 800 PM CDT SAT SEP 5 1992 ...SCATTERED SHOWERS AND THUNDERSTORMS PRODUCING HEAVY RAINS AND SOME MINOR FLOODING WILL CONTINUE ACROSS NORTHEAST IOWA... SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE ACROSS NORTHEAST AND NORTH CENTRAL IOWA THROUGH THE LATE EVENING HOURS AND WILL PRODUCE HEAVY RAINS IN ADDITION TO DEADLY LIGHTNING. DUE TO THESE HEAVY RAIN PRODUCING THUNDERSTORMS...THE TOWNS OF MASON CITY...OSAGE AND BRITT HAVE REPORTED SOME MINOR STREET FLOODING IN THE LAST HOUR. THESE SHOWERS AND THUNDERSTORMS WILL CONTINUE TO MOVE ACROSS NORTH CENTRAL AND NORTHEAST IOWA AND WILL CONTINUE TO PRODUCE PERIODS OF HEAVY RAINS AND POSSIBLY SOME FLOODING OF STREETS AND LOW-LYING AREAS. TRS
Special weather statement, Sep 5, 8:18 PM CDT, 1 hour 10 minutes before
IAZALL-0602010 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 810 PM CDT SAT SEP 5 1992 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR A LARGE PORTION OF SOUTHWEST AND SOUTH CENTAL IOWA UNTIL 10 PM... AT 808 PM...STRONG STORMS WERE LOCATED 25 MILES NORTHEAST OF AMES OR 10 MILES WEST OF ELDORA...AND 45 MILES SOUTHWEST OF DES MOINES NEAR FONTANELLE. THESE STORMS ARE CAPABLE OF PRODUCING VERY HEAVY RAIN... GUSTY WINDS...FREQUENT DEADLY LIGHTNING AND HAIL. THESE STORMS WERE PART OF A LARGER AREA OF SCATTERED SHOWERS AND THUNDERSTORMS WHICH CONTINUED ACROSS THE NORTHWEST HALF OF IOWA. MOVEMENT WAS EAST AT 15 MILES AN HOUR. R A PRENTICE
Special weather statement, Sep 5, 8:46 PM CDT, 42 minutes before
IAZALL-060235 SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 839 PM CDT SAT SEP 5 1992 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR A LARGE PORTION OF SOUTHWEST AND SOUTH CENTAL IOWA UNTIL 10 PM... AT 831 PM...A STRONG THUNDERSTORM WAS LOCATED NEAR GREENFIELD. THIS STORM IS CAPABLE OF PRODUCING VERY HEAVY RAIN...GUSTY WINDS... FREQUENT DEADLY LIGHTNING AND HAIL. THIS STORM WAS PART OF A LARGER AREA OF SCATTERED SHOWERS AND THUNDERSTORMS WHICH CONTINUED ACROSS THE CENTRAL HALF OF IOWA. THIS AREA WAS LOCATED WEST OF A LINE EXTENDING FROM NEAR DECORAH...TO 20 MILES WEST OF WATERLOO...TO JUST SOUTH OF KNOXVILLE. MOVEMENT WAS EAST AT 15 MILES AN HOUR. R A PRENTICE
Special weather statement, Sep 5, 8:51 PM CDT, 37 minutes before
IAZALL-060235 SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...CORRECTED NATIONAL WEATHER SERVICE DES MOINES IA 839 PM CDT SAT SEP 5 1992 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR A LARGE PORTION OF SOUTHWEST AND SOUTH CENTAL IOWA UNTIL 10 PM... AT 831 PM...A STRONG THUNDERSTORM WAS LOCATED 40 MILES SOUTHWEST OF DES MOINES NEAR GREENFIELD. THIS STORM IS CAPABLE OF PRODUCING VERY HEAVY RAIN...GUSTY WINDS...FREQUENT DEADLY LIGHTNING AND HAIL. THIS STORM WAS PART OF A LARGER AREA OF SCATTERED SHOWERS AND THUNDERSTORMS WHICH CONTINUED ACROSS THE CENTRAL HALF OF IOWA. THIS AREA WAS LOCATED WEST OF A LINE EXTENDING FROM NEAR DECORAH...TO 20 MILES WEST OF WATERLOO...TO JUST SOUTH OF KNOXVILLE. MOVEMENT WAS EAST AT 15 MILES AN HOUR. R A PRENTICE
Special weather statement, Sep 5, 9:15 PM CDT, 13 minutes before
IAZALL-060310 SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 909 PM CDT SAT SEP 5 1992 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR A LARGE PORTION OF SOUTHWEST AND SOUTH CENTAL IOWA UNTIL 10 PM... AT 905 PM...A STRONG THUNDERSTORM WAS LOCATED 35 MILES SOUTHWEST OF DES MOINES OR 10 MILES SOUTHEAST OF GREENFIELD. THIS STORM IS CAPABLE OF PRODUCING HEAVY RAIN...GUSTY WINDS...FREQUENT DEADLY LIGHTNING AND HAIL. MOVEMENT WjAS SOUTHEAST AT 15 MILES AN HOUR. R A PRENTICE
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 5, 10:04 PM CDT | Severe Thunderstorm Warning | DMX | Marion | 41 min |
| Sep 5, 10:04 PM CDT | Severe Thunderstorm Warning | DMX | Jasper | 35 min |
Nearby
Severe Thunderstorm Warnings in Iowa, 1992Every severe thunderstorm warning in 1992
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.