Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1999
Severe Thunderstorm Warning 194, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 4, 1999, 8:24 PM CDT for Osage County, Washington County, Oklahoma. It was in force for 51 min. 3 reports 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
- May 4, 1999, 8:24 PM CDT (01:24 UTC)
- Expired
- May 4, 1999, 9:15 PM CDT
- In force
- 51 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Osage County, OK, Washington County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 4, 8:45 PM CDT | Hail 0.88 | Barnsdall, OK | |
| May 4, 8:52 PM CDT | Hail 0.75 | Ochelata, OK | |
| May 4, 9:00 PM CDT | Hail 0.75 | Barnsdall, OK |
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 nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 1.4 hours before the alert went out and 211 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
- 1240 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 216 m²/s²
- 0-3 km storm-relative helicity
- 224 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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 May 4, 5:10 PM CDT, 3 hours 14 minutes earlier.
Area forecast discussion, May 4, 5:10 PM CDT, 3 hours 14 minutes before
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Special weather statement, May 4, 3:00 PM CDT, 5 hours 24 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 300 PM CDT TUE MAY 4 1999 OKZ054>068-070-071-073-042015- TORNADO WATCH 208 IS NO LONGER IN EFFECT FOR THE THE FOLLOWING COUNTIES IN EASTERN OKLAHOMA... CHEROKEE CREEK CRAIG DELAWARE MAYES MCINTOSH MUSKOGEE NOWATA OKFUSKEE OKMULGEE OSAGE OTTAWA PAWNEE PITTSBURG ROGERS TULSA WAGONER WASHINGTON
Special weather statement, May 4, 3:00 PM CDT, 5 hours 24 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 300 PM CDT TUE MAY 4 1999 OKZ054>068-070-071-073-042015- TORNADO WATCH 208 IS NO LONGER IN EFFECT FOR THE THE FOLLOWING COUNTIES IN EASTERN OKLAHOMA... CHEROKEE CREEK CRAIG DELAWARE MAYES MCINTOSH MUSKOGEE NOWATA OKFUSKEE OKMULGEE OSAGE OTTAWA PAWNEE PITTSBURG ROGERS TULSA WAGONER WASHINGTON ARZ001-002-010-011-019-020-029-OKZ049-053-069-072-074>076-042015- TORNADO WATCH 210 REMAINS IN EFFECT UNTIL 900 PM CDT FOR THE FOLLOWING COUNTIES IN EASTERN OKLAHOMA... ADAIR CHOCTAW HASKELL LATIMER LE FLORE MCCURTAIN PUSHMATAHA SEQUOYAH NORTHWESTERN ARKANSAS... BENTON CARROLL CRAWFORD FRANKLIN MADISON SEBASTIAN WASHINGTON
Special weather statement, May 4, 3:54 PM CDT, 4 hours 30 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 354 PM CDT TUE MAY 4 1999 OKZ049-053-069-072-074-075-042130 TORNADO WATCH 210 IS NO LONGER IN EFFECT FOR THE THE FOLLOWING COUNTIES IN EASTERN OKLAHOMA... ADAIR CHOCTAW HASKELL LATIMER PUSHMATAHA SEQUOYAH ARZ001-002-010-011-019-020-029-OKZ076-042130- TORNADO WATCH 210 REMAINS IN EFFECT UNTIL 900 PM CDT FOR THE FOLLOWING COUNTIES IN EASTERN OKLAHOMA... LE FLORE MCCURTAIN NORTHWESTERN ARKANSAS... BENTON CARROLL CRAWFORD FRANKLIN MADISON SEBASTIAN WASHINGTON
Special weather statement, May 4, 6:10 PM CDT, 2 hours 14 minutes before
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</html>Local storm report, May 4, 8:17 PM CDT, 7 minutes before
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</html>The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 7:48 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 42 min |
| May 4, 8:48 PM CDT | Severe Thunderstorm Warning | TSA | Nowata | 42 min |
| May 5, 6:06 PM CDT | Tornado Warning | TSA | Pittsburg | 24 min |
| May 5, 6:11 PM CDT | Tornado Warning | TSA | Latimer | 49 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 1999Every severe thunderstorm warning in 1999
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.