Alert archive / Iowa / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 79, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jul 19, 1992, 7:25 PM CDT for Appanoose County, Wayne County, Iowa. It was in force for 24 min.
The area
The counties it named.
The facts
- Issued
- Jul 19, 1992, 7:25 PM CDT (00:25 UTC)
- Expired
- Jul 19, 1992, 7:49 PM CDT
- In force
- 24 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
Counties Appanoose County, IA, Wayne County, IA
The nearest sounding before it
Omaha, NE (KOVN), launched 00:00Z, 0.4 hours before the alert went out and 282 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
- 38 J/kg
- Mixed-layer CIN
- -238 J/kg
- Mixed-layer LCL
- 1337 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- -35 m²/s²
- 0-3 km storm-relative helicity
- 5 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KDSM 200026 SVRDSM IAC007-185-200115- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE DES MOINES IA 725 PM CDT SUN JUL 19 1992 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 815 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL IOWA ...WESTERN APPANOOSE COUNTY...EASTERN WAYNE COUNTY AT 720 PM CDT A SVERE THUNDERSTORM WAS MOVING INTO NORTHEASTERN WAYNE COUNTY ABOUT 10 MILES WEST OF RATHBUN RESERVIOR OR 40 MILES SOUTHWEST OF OTTUMWA. THE STORM WAS MOVING SOUTHEAST AT 30 MILES AN HOUR. SOME CITIES INCLUDED IN THE WARNING ARE PROMISE CITY...PLANO...MYSTIC ANRATHBUN. THE STORM WILL MOVE INTO MYSTIC AROUND 745 PM CDT. 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.
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 19, 5:24 PM CDT, 2 hours 1 minute before
IAZ025>030-035>042-045-192345- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DES MOINES IA 523 PM CDT SUN JUL 19 1992 ...PARTS OF CENTRAL AND NORTHEAST IOWA ARE NO LONGER IN TORNADO WATCHES... THE FOLLOWING COUNTIES ARE NO LONGER INCLUDED IN TORNADO WATCH NUMBER 655: WRIGHT...FRANKLIN...WEBSTER...HAMILTON...HARDIN...AND CARROLL. THE FOLLOWING COUNTIES ARE NO LONGER INCLUDED IN TORANDO WATCH NUMBER 654: BUTLER...BREMER...FAYETTE...CLAYTON...GRUNDY...BLACK HAWK... BUCHANAN...DELAWARE...DUBUQUE. THE PART OF CENTRAL...SOUTHWEST AND NORTHEAST IOWA THAT REMAIN UNDER TORNADO WATCHES UNTIL 8 PM IS SOUTHEAST OF A LINE FROM SOUTH OF DUBUQUE TO SOUTH OF WATERLOO TO NEAR CARROLL. BURKE
Special weather statement, Jul 19, 5:45 PM CDT, 1 hour 40 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 544 PM CDT SUN JUL 19 1992 ...TORNADO WATCH IS IN EFFECT FOR NORTHEAST...CENTRAL AND SOUTHWEST IOWA UNTIL 8 PM CDT... AT 530 PM CDT...A LINE OF STRONG THUNDERSTORMS CONTINUED ACROSS NORTHEAST AND CENTRAL IOWA. THE 20 MILE WIDE LINE OF STORMS EXTENDED FROM 15 MILES NORTH OF DES MOINES NEAR SAYLORVILLE RESERVOIR...TO THE MARSHALLTOWN VICINITY...TO NEAR DUBUQUE. THESE STORMS ARE CAPABLE OF PRODUCING PEA TO MARBLE SIZE HAIL...DEADLY LIGHTNING...WIND NEAR 50 MILES AN HOUR...AND HEAVY DOWNPOURS. PERSONS IN THE PATH OF THESE STORMS ARE URGED TO EXCERCISE CAUTION AND SEEK SHELTER IF THREATENING WEATHER APPNROACHES. MONITOR WEATHER REPORTS FOR FURTHER DEVELOPMENTS. / ALSO...ISOLATED SHOWERS HAD MOVED INTO WEST CENTRAL IOWA NEAR MAPLETON AND APPROACHING DENISON. THE STORMS AND SHOWERS WERE MOVING SOUTHEAST AT 35 MILES AN HOUR. MILLER
Special weather statement, Jul 19, 5:46 PM CDT, 1 hour 39 minutes before
IAZ006>011-016>019-026>029-038>040-192300- SPECIAL WEATHER STATEMENT AND WEATHER UPDATE FOR NORTHEAST IOWA NATIONAL WEATHER SERVICE WATERLOO IA 540 PM CDT SUN JUL 19 1992 ...THUNDERSTORMS ARE MOVING THROUGH THE WALKER AND BRANDON AREAS... AT 530 PM CDT A LINE OF THUNDERSTORMS WAS MOVING SOUTHEAST AT 30 MILES AN HOUR IN A NARROW BAND FROM 10 MILES NORTH OF DES MOINES TO 35 MILES SOUTH OF WATERLOO TO DUBUQUE. THE STONGEST THUNDERSTORMS WERE 30 MILES EAST OF WATERLOO NEAR WINTHROP. THESE STORMS WERE MOVING SOUTHEAST AT 35 MILES AN HOUR AND HAVE PRODUCED SMALL HAIL ...HEAVY RAIN AND WIND GUSTS TO 45 MILES AN HOUR. THE LINE OF THUNDERSTORMS WILL AFFECT THE WALKER AND BRANDON IOWA AREAS DURING THE NEXT HOUR. DP
Special weather statement, Jul 19, 6:22 PM CDT, 1 hour 3 minutes before
SPECIAL WEATHER STATEMENT AND WEATHER UPDATE FOR IOWA NATIONAL WEATHER SERVICE DES MOINES IA 620 PM CDT SUN JUL 19 1992 ...TORNADO WATCH IS IN EFFECT FOR CENTRAL AND SOUTHWEST IOWA UNTIL 8 PM CDT...AND FOR MUCH OF SOUTHEAST IOWA UNTIL MIDNIGHT CDT... AT 605 PM CDT...A LINE OF STRONG THUNDERSTORMS CONTINUED ACROSS CENTRAL AND EAST CENTRAL IOWA. THE 20 MILE WIDE LINE EXTENDED FROM NEWTON TO CEDAR RAPIDS TO 10 MILES SOUTH OF DUBUQUE. THE STRONGEST STORMS WERE LOCATED NEAR HIAWATHA...JUST NORTH OF DOWNTOWN CEDAR RAPIDS...25 TO 35 MILES EAST OF DES MOINES NEAR NEWTON...AND 30 MILES SOUTHEAST OF DES MOINES NEAR MELCHER. THE STORM NEAR CEDAR RAPIDS HAS PRODUCED MARBLE SIZED HAIL...AND ALL OF THESE STORMS ARE CAPABLE OF PRODUCING SOME HAIL...WINDS NEAR 50 MILES AN HOUR...DEADLY LIGHTNING... AND HEAVY DOWNPOURS. PERSONS IN THE PATH OF THESE STORMS SHOULD SEEK SHELTER WHEN THREATENING WEATHER APPROACHES. PLEASE MONITOR WEATHER REPORTS FOR FURTHER UPDATES. / THE OUTLOOK THROUGH 7 PM IS FOR THE STRONG STORMS TO CONTINUE TO MOVE SOUTHEAST INTO EAST CENTRAL AND SOUTHEAST IOWA. MILLER
Special weather statement, Jul 19, 6:46 PM CDT, 39 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 645 PM CDT SUN JUL 19 1992 ...TORNADO WATCH IS IN EFFECT FOR CENTRAL AND SOUTHWEST IOWA UNTIL 8 PM CDT...AND FOR MUCH OF SOUTHEAST IOWA UNTIL MIDNIGHT CDT... AT 630 PM CDT...WIDELY SCATTERED STRONG THUNDERSTORMS CONTINUED OVER L CENTRAL AND EAST CENTRAL IOWA...AND HAD DEVELOPED OVER SOUTH CENTRAL IOWA. THE STRONGEST STORMS WERE LOCATED NEAR CEDAR RAPIDS. A CLUSTER OF INTENSE STORMS IN THE CEDAR RAPIDS AREA MAY PRODUCE HAIL...DAMAGING WIND...DEADLY LIGHTNING...AND VERY HEAVY DOWNPOURS. RESIDENTS SHOULD BE AWARE OF THE SITUATION AND SEEK SHELTER IF THREATENING WEATHER APPROACHES. THESE STORMS ARE POTENTIALLY VERY POWERFUL AND EXTRA CARE SHOULD BE TAKEN BY MOTORISTS IN THE VICINITY. OTHER VERY STRONG THUNDERSTORMS WERE LOCATED NEAR NEWTON...GRINNELL... MELCHER...AND OSCEOLA. / THE STORMS WERE MOVING SOUTHEAST AT 35 MILES AN HOUR. MILLER
Special weather statement, Jul 19, 7:16 PM CDT, 9 minutes before
SPECIAL WEATHER STATEMENT AND WEATHER UPDATE FOR IOWA NATIONAL WEATHER SERVICE DES MOINES IA 715 PM CDT SUN JUL 19 1992 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PARTS OF SOUTHEAST IOWA UNTIL MIDNIGHT CDT TONIGHT... AT 705 PM CDT...A CLUSTER OF VERY STRONG AND INTENSE THUNDERSTORMS CONTINUED OVER EAST CENTRAL IOWA 20 TO 25 MILES SOUTHEAST OF CEDAR RAPIDS NEAR TIPTON. OTHER STRONG THUNDERSTORMS WERE WIDELY SCATTERED FROM 40 MILES SOUTH OF DES MOINES NEAR CHARITON...TO A POINT 30 MILES NORTH OF DAVENPORT NEAR MAQUOKOTA. THESE STORMS WERE CAPABLE OF PRODUCING PEA TO MARBLE SIZE HAIL...WIND IN EXCESS OF 40 MILES AN HOUR...DEADLY LIGHTNING...AND HEAVY DOWNPOURS. PERSONS IN THE PATH OF THESE STORMS SHOULD SEEK SHELTER IF THEY APPROACH. THE OUTLOOK THROUGH 8 PM...WIDELY SCATTERED STRONG THUNDERSTORMS WILL CONTINE OVER SOUTHEAST IOWA...APPROACHING THE QUAD CITIES AREA. / MILLER
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.