Alert archive / Arkansas / Severe Thunderstorm Warnings in 1998
Severe Thunderstorm Warning 80, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Apr 7, 1998, 12:14 AM CDT for Madison County, Arkansas. It was in force for 61 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Apr 7, 1998, 12:14 AM CDT (05:14 UTC)
- Expired
- Apr 7, 1998, 1:15 AM CDT
- In force
- 61 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County Madison County, AR
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 7, 12:30 AM CDT | Thunderstorm Wind 52 | St Paul, AR |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 6, 10:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 5.2 hours before the alert went out and 99 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2213 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 133 m²/s²
- 0-3 km storm-relative helicity
- 221 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
900 WUUS54 KTSA 070515 RRA SVRTUL ARC087-070615- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 1214 AM CDT TUE APR 7 1998 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 115 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHWESTERN ARKANSAS ...MADISON COUNTY AT 1212 AM...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS MOVING THROUGH EASTERN WASHINGTON COUNTY FROM WEST OF ELKINS...TO 5 MILES SOUTHWEST OF DELANEY. THE LINE WAS MOVING TO THE EAST AT 35 MPH. ST PAUL...COMBS...PETTIGREW ARE IN THE PATH OF THIS LINE OF STORMS. HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN THE WARNED AREA. IF YOU ARE IN THE PATH OF THESE STORMS SEEK SHELTER IMMEDIATELY ON THE LOWEST FLOOR OF YOUR BUILDING OR HOME. STAY AWAY FROM OUTSIDE WALLS AND WINDOWS. IF YOU ARE IN A MOBILE HOME YOU SHOULD MOVE TO A MORE SUBSTANTIAL STRUCTURE IF ONE IS NEARBY.
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.
NWS Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 6, 10:25 PM CDT, 1 hour 49 minutes earlier.
Area forecast discussion, Apr 6, 10:25 PM CDT, 1 hour 49 minutes before
FPUS3 KTUL 070329 AFDTUL EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 1025 PM CDT MON APR 6 1998 TWEAKED POPS AGAIN AND ADJUSTED WATCH HEADLINES. STORMS SHOWING SIGNS OF PRODUCING STRONG WINDS...ONE REPORT OF 60 MPH ALREADY. WILL CLEAR OUT COUNTIES FROM SVR WATCH FROM THE WEST AS THE LINE MOVES BY. FCSTID = 26 TUL 52 73 50 66 / 80 0 10 40 FSM 53 78 49 71 / 80 10 10 20 MLC 53 79 51 70 / 80 0 10 20 BVO 52 73 50 66 / 80 0 10 40 FYV 54 72 46 67 / 80 10 10 40 IDB 56 82 51 74 / 50 0 10 10 BYV 54 72 46 67 / 80 10 10 40 MIO 53 74 49 66 / 80 10 10 40 MKO 55 77 54 68 / 80 0 10 30 F10 55 77 54 68 / 80 0 10 30 HHW 56 82 51 74 / 50 0 10 10 .TUL... OK...NONE. AR...NONE.
In the hours before
Special weather statement, Apr 6, 9:55 PM CDT, 2 hours 19 minutes before
OKZ049-053-073-075-070252-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
955 PM CDT MON APR 6 1998
TORNADO WATCH NUMBER 169 HAS BEEN REPLACED WITH A SEVERE
THUNDERSTORM WATCH IN EFFECT UNTIL 3 AM FOR THE FOLLOWING COUNTIES IN
EASTERN OKLAHOMA...
CHOCTAW LATIMER PITTSBURG
PUSHMATAHA...
PLEASE REFER TO THE LATEST AREAL OUTLINE PRODUCT /OKCSLSOK/ FOR A
LIST OF COUNTIES IN THE NEW SEVERE THUNDERSTORM WATCH.Special weather statement, Apr 6, 9:55 PM CDT, 2 hours 19 minutes before
OKZ049-053-073-075-070252-
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
955 PM CDT MON APR 6 1998
TORNADO WATCH NUMBER 169 HAS BEEN REPLACED WITH A SEVERE
THUNDERSTORM WATCH IN EFFECT UNTIL 3 AM FOR THE FOLLOWING COUNTIES IN
EASTERN OKLAHOMA...
CHOCTAW LATIMER PITTSBURG
PUSHMATAHA...
PLEASE REFER TO THE LATEST AREAL OUTLINE PRODUCT /OKCSLSOK/ FOR A
LIST OF COUNTIES IN THE NEW SEVERE THUNDERSTORM WATCH.The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 11:25 PM CDT | Severe Thunderstorm Warning | TSA | Crawford, Sebastian, Washington | 50 min |
| Apr 6, 11:59 PM CDT | Tornado Warning | TSA | Crawford, Franklin | 46 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 1998Every severe thunderstorm warning in 1998
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.