Alert archive / Iowa / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 65, NWS Des Moines, IA
NWS Des Moines, IA issued this severe thunderstorm warning at Jul 13, 1992, 5:04 PM CDT for Washington County, Iowa. It was in force for 26 min.
The area
The counties it named.
The facts
- Issued
- Jul 13, 1992, 5:04 PM CDT (22:04 UTC)
- Expired
- Jul 13, 1992, 5:30 PM CDT
- In force
- 26 min
- Issued by
- NWS Des Moines, IA
- Area
- Whole counties
County Washington County, IA
The nearest sounding before it
Omaha, NE (KOVN), launched 12:00Z, 10.1 hours before the alert went out and 388 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
- 91 J/kg
- Mixed-layer CIN
- -150 J/kg
- Mixed-layer LCL
- 554 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 3 m²/s²
- 0-3 km storm-relative helicity
- 90 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 132205 SVRDSM IAC183-132230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE DES MOINES IA 504 PM CDT MON JUL 13 1992 THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 530 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTHEAST IOWA ...SOUTHERN WASHINGTON COUNTY AT 500 PM CDT NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM 30 MILES EAST-NORTHEAST OF OTTUMWA NEAR THE TOWN OF RUBIO AND LAKE DARLING. CITIES IN THE PATH OF THIS STORM INCLUDE BRIGHTON...WASHINGTON AND AINSWORTH. 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. THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD PREPARE FOR DAMAGING WIND IN EXCESS OF 55 MPH...LARGE HAIL...AND DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.
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 13, 1:54 PM CDT, 3 hours 10 minutes before
IAZALL-131940- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 151 PM CDT MON JUL 13 1992 AT 136 PM CDT...A 20 MILE WIDE BAND OF THUNDERSTORMS PRODUCING VERY HEAVY RAIN EXTENDED FROM 30 MILES SOUTH OF DES MOINES...NEAR OSCEOLA NORTHEAST TO NEAR VINTON...OR 40 MILES SOUTH OF WATERLOO. VERY HEAVY RAIN AND DANGEROUS LIGHTNING IS LIKELY WITH THESE STORMS. THESE STORMS AS THEY PASSED THROUGH DES MOINES CAUSED CONSIDERABLE STREET FLOODING AS THEY DEPOSITED 11/4 INCHES IN AN HOUR AND A HALF. THESE STORMS WERE PART OF A LARGER AREA OF SHOWERS AND STORMS...40 MILES WIDE...THAT EXTENDED FROM 30 MILES SOUTHEAST OF OMAHA/COUNCIL BLUFFS NORTHEAST TO LANSING...IN THE NORTHEAST CORNER OF IOWA. A SECOND AREA OF SHOWERS AND SCATTERED THUNDERSTORMS...40 TO 60 MILES WIDE...EXTENDED FROM CARROLL NORTHEAST TO CRESCO...IN NORTHEAST IOWA. CARROLL IS 65 MILES NORTHWEST OF DES MOINES...WHILE CRESCO IS 50 MILES NORTH OrF WATERLOO. THE SHOWERS AND STORMS WERE MOVING EAST NORTHEAST AT 35 TO 40 MILES AN HOUR. BARLOW
Special weather statement, Jul 13, 2:53 PM CDT, 2 hours 11 minutes before
IAZALL-132040- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 249 PM CDT MON JUL 13 1992 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE SOUTHEAST THIRD OF IOWA UNTIL 9PM CDT... AT 231 PM CDT...A 25 MILE WIDE BAND OF VERY STRONG THUNDERSTORMS WAS LOCATED FROM LAMONI...IN SOUTH CENTRAL IOWA...NORTHEAST TO MANCHESTER OR 40 MILES EAST OF WATERLOO. MOST OF THE STORMS IN THIS AREA WILL PRODUCE VERY HEAVY RAIN AND FREQUENT DEADLY LIGHTNING. A FEW MAY PRODUCE SMALL HAIL. A FEW OF THESE STORMS WILL BE MOVING THROUGH THE CEDAR RAPIDS AREA BY 315 PM. THESE STORMS WILL CAUSE STREET FLOODING AND SMALL RIVER AND STREAMS WILL FILL UP QUICKLY. THESE STORMS WERE PART OF A MUCH LARGER AREA OF SHOWERS AND SCATTERED THUNDERSTORMS THAT EXTENDED FROM SOUTHWEST INTO NORTHEAST IOWA. THE SHOWERS AND STORMS WERE LOCATED ALONG AND ABOUT 70 MILES EITHER SIDE OF A LINE FROM BEDFORD...OR 70 MILES SOUTHWEST OF DES MOINES NORTHEAST TO DECORAH. THE SHOWERS AND STORMS WERE MOVING EAST NORTHEAST AT 35 TO 40 MILES AN HOUR. BARLOW
Special weather statement, Jul 13, 3:54 PM CDT, 1 hour 10 minutes before
IAZALL-132140- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 340 PM CDT MON JUL 13 1992 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE SOUTHEAST THIRD OF IOWA UNTIL 9PM CDT... AT 330 PM CDT...A NARROW BAND...20 MILES WIDE..OF INTENSE THUNDERSTORMS STRETCHED FROM JUST EAST OF ALBIA TO JUST SOUTH OF DUBUQUE. THE HEAVIEST OF THESE STORMS WERE CLUSTERED AROUND THE KALONA AND TIPTON AREAS. MOST OF THE STORMS IN THIS AREA WILL PRODUCE VERY HEAVY RAIN...FREQUENT DEADLY LIGHTNING AND HAIL. THESE STORMS WILL CAUSE STREET FLOODING AND SMALL RIVERS AND STREAMS WILL FILL UP QUICKLY. THESE STORMS WERE PART OF A MUCH LARGER AREA OF SHOWERS AND SCATTERED THUNDERSTORMS THAT WAS LOCATED NORTHWEST OF A LINE FROM LAMONI TO DUBUQUE AND SOUTHEAST OF A LINE FROM FORT DODGE TO LACROSSE. THE SHOWERS AND STORMS WERE MOVING EAST NORTHEAST AT 35 TO 40 MILES AN HOUR. SCOTT
Local storm report, Jul 13, 4:27 PM CDT, 37 minutes before
LOCAL STORM REPORT
NATIONAL WEATHER SERVICE DES MOINES IA
428 PM CDT MON JUL 13 1992
TIME CDT EVENT
248 PM 3.5 INCHES RAIN PAST HOUR AT WALKER IN NORTHWEST LINN
COUNTY REPORTED BY SHERRIFS DEPUTY.
300 PM BARN BLOWN DOWN AT NEWELL IN EASTERN BENTON COUNTY.
305 PM 54 MPH WIND GUST AT LINN COUNTY EOC.
305 PM MOBILE HOME DAMAGE...TREES/POWER LINES DOWN AT HIAWTHA
...NORTH OF CEDAR RAPIDS.
320 PM RADIO TOWER BLOWN DOWN SOUTH OF CEDAR RAPIDS...NUMEROUS
TREES AND POWER LINES DOWN.
355 PM OBSERVER AT MAQUOKETA IN JACKSON COUNTY REPORTED GUST TO
65 MPH...TORRENTIAL RAIN.
210 PM LATE REPORT...PEA SIZE HAIL AT ATKINS IN EXTREME
EASTERN BENTON COUNTY...A COUPLE OF BARNS BLOWN DOWN.
CORBETTSpecial weather statement, Jul 13, 4:54 PM CDT, 10 minutes before
IAZALL-132240- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE DES MOINES IA 440 PM CDT MON JUL 13 1992 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE SOUTHEAST THIRD OF IOWA UNTIL 9PM CDT... AT 430 PM CDT...A NARROW BAND OF INTENSE THUNDERSTORMS STRETCHED FROM BRIGHTON...ABOUT 25 MILES EAST OF OTTUMWA...TO WEST LIBERTY...15 MILES SOUTH OF CEDAR RAPIDS. THESE STORMS WILL PRODUCE VERY HEAVY RAINS... WINDS IN EXCESS OF 50 MILES AN HOUR...FREQUENT LIGHTNING AND HAIL. THESE STORMS WERE MOVING TO THE EAST AT 35 MILES AN HOUR...AND WILL BE AFFECTING THE CITIES OF PRINCETON...BLUE GRASS...MUSCATINE AND MOUNT PLEASANT BY 5 30 PM. THESE STORMS WERE PART OF A MUCHb LARGER AREA OF SHOWERS AND THUNDER STORMS THAT COVERED MOST OF THE EAST HALF OF IOWA...AND SCATTERED PARTS OF WEST CENTRAL AND SOUTHWEST IOWA. SCOTT
The office that day
Everything else NWS Des Moines, IA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 3:11 PM CDT | Severe Thunderstorm Warning | DMX | Johnson, Linn | 49 min |
| Jul 13, 3:52 PM CDT | Severe Thunderstorm Warning | DMX | Iowa, Johnson | 53 min |
| Jul 13, 5:53 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose | 25 min |
| Jul 13, 6:14 PM CDT | Severe Thunderstorm Warning | DMX | Davis | 31 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.