Alert archive / Oklahoma / Winter Storm Watches in 2009
Winter Storm Watch 4, NWS Tulsa, OK
NWS Tulsa, OK issued this winter storm watch at Dec 23, 2009, 4:04 AM CST for 22 counties in Oklahoma; 4 counties in Arkansas. It took effect at Dec 24, 2009, 6:00 AM CST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Dec 23, 2009, 4:04 AM CST (10:04 UTC)
- In effect from
- Dec 24, 2009, 6:00 AM CST
- Expired
- Dec 24, 2009, 3:55 AM CST
- In force
- Issued by
- NWS Tulsa, OK
All 26 counties
Benton County, AR, Carroll County, AR, Madison County, AR, Washington County, AR, Adair County, OK, Cherokee County, OK, Choctaw County, OK, Craig County, OK, Creek County, OK, Delaware County, OK, Haskell County, OK, Latimer County, OK, Mayes County, OK, McIntosh County, OK, Muskogee County, OK, Nowata County, OK, Okfuskee County, OK, Okmulgee County, OK, Ottawa County, OK, Pawnee County, OK, Pittsburg County, OK, Pushmataha County, OK, Rogers County, OK, Tulsa County, OK, Wagoner County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 42 km from the middle of the area, began a volume at 10:03 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 10.1 hours before the alert went out and 176 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
- 694 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 203 m²/s²
- 0-3 km storm-relative helicity
- 298 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter storm watch 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 winter storm watch went out at Dec 23, 3:20 AM CST, 44 minutes earlier.
Area forecast discussion, Dec 23, 3:20 AM CST, 44 minutes before
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</html>Hazardous weather outlook, Dec 22, 5:00 PM CST, 11 hours 4 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 500 PM CST TUE DEC 22 2009 ARZ001-002-010-011-019-020-029-OKZ049-053>076-231100- ADAIR OK-BENTON AR-CARROLL AR-CHEROKEE OK-CHOCTAW OK-CRAIG OK- CRAWFORD AR-CREEK OK-DELAWARE OK-FRANKLIN AR-HASKELL OK-LATIMER OK- LE FLORE OK-MADISON AR-MAYES OK-MCINTOSH OK-MUSKOGEE OK-NOWATA OK- OKFUSKEE OK-OKMULGEE OK-OSAGE OK-OTTAWA OK-PAWNEE OK-PITTSBURG OK- PUSHMATAHA OK-ROGERS OK-SEBASTIAN AR-SEQUOYAH OK-TULSA OK-WAGONER OK- WASHINGTON OK-WASHINGTON AR- 500 PM CST TUE DEC 22 2009 ...STRONG STORM SYSTEM WILL AFFECT THE AREA TONIGHT THROUGH CHRISTMAS... THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS MUCH OF EASTERN OKLAHOMA. .DAY ONE...TONIGHT. SEVERE THUNDERSTORM. RISK...LIMITED. AREA...SOUTHEAST OF I-44. ONSET...AFTER 10 PM. DISCUSSION... SHOWERS AND THUNDERSTORMS WILL DEVELOP LATER THIS EVENING AND INCREASE THROUGH THE EARLY MORNING HOURS. A FEW STRONG TO SEVERE ELEVATED THUNDERSTORMS CAPABLE OF PRODUCING LARGE HAIL WILL BE POSSIBLE AS THE LOW LEVEL JET STRENGTHENS AND MOISTURE CONTINUES TO INCREASE THROUGH THE OVERNIGHT HOURS. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... LOCAL SPOTTER ACTIVATION MAY BE NEEDED. .DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY. WEDNESDAY...SEVERE THUNDERSTORM POTENTIAL...HEAVY RAIN POTENTIAL. THURSDAY...WINTER WEATHER POTENTIAL...HIGH WIND POTENTIAL. CHRISTMAS DAY...HIGH WIND POTENTIAL. SATURDAY THROUGH MONDAY...NO HAZARDS. EXTENDED DISCUSSION... THE FORECAST FOR A STRONG STORM SYSTEM TO IMPACT THE AREA WEDNESDAY THROUGH FRIDAY CONTINUES. THUNDERSTORMS WILL BE ONGOING EARLY WEDNESDAY MORNING...BEFORE SHIFTING FURTHER EAST BY EARLY AFTERNOON. ADDITIONAL THUNDERSTORMS ARE LIKELY TO FORM BY WEDNESDAY AFTERNOON ALONG AN ADVANCING COLD FRONT...WITH THESE STORMS IMPACTING ALL OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THROUGH THE EVENING HOURS. INCREASING SURFACE BASED INSTABILITY ACROSS SOUTHEAST OKLAHOMA INDICATES THE THREAT OF ALL MODES OF SEVERE WEATHER WILL BE POSSIBLE SOUTH OF I-40...INCLUDING THE CHANCE FOR A TORNADO. LARGE HAIL AND DAMAGING WINDS REMAIN THE PRIMARY IMPACT TO THE NORTH WHERE STORMS SHOULD REMAIN MORE ELEVATED. HEAVY RAINFALL ALSO APPEARS LIKELY ESPECIALLY OVER FAR EASTERN OKLAHOMA AND NORTHWEST ARKANSAS BEFORE THIS ROUND OF STORMS MOVES EAST OF THE FORECAST AREA BY LATE WEDNESDAY NIGHT. THE ATTENTION WILL THEN FOCUS ON THE MUCH COLDER TEMPERATURES FOLLOWING THE COLD FRONT...AND THE POTENTIAL FOR SNOW DEVELOPING OVER PARTS OF THE AREA BY THURSDAY AFTERNOON. AT THIS TIME... FORECAST MODELS INDICATE A SECONDARY UPPER LEVEL SYSTEM WILL LIFT NORTH ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THURSDAY AFTERNOON WITH INCREASING PRECIPITATION. BY THIS TIME THE AIRMASS WILL LIKELY BE COLD ENOUGH FOR A TRANSITION TO SNOW. THE BEST CHANCE OF ACCUMULATING SNOWFALL APPEARS TO BE FOCUSED ON NORTHEAST OKLAHOMA AND MUCH OF NORTHWEST ARKANSAS...THOUGH THERE IS A CHANCE FOR SNOW ACROSS THE ENTIRE AREA. WHILE ACCUMULATIONS AS THIS TIME APPEAR TO LIGHT...NARROW BANDS OF HEAVIER SNOWFALL COULD BE POSSIBLE. THE TRACK OF THE STORM SYSTEM ACROSS THE AREA WILL HAVE A LARGE IMPACT ON THE SNOWFALL POTENTIAL...AND LATER FORECASTS WILL CONTINUALLY UPDATE SNOW AMOUNTS AND PLACEMENT. STRONG NORTHWESTERLY WINDS WILL DEVELOP ON THURSDAY AND PERSIST INTO SATURDAY AS THE STRONG STORM MOVES SLOWLY NORTHWARD INTO THE UPPER MIDWEST. THIS COULD RESULT IN DANGEROUS WIND CHILLS EARLY CHRISTMAS MORNING. EMERGENCY MANAGEMENT PLANNING STATEMENT... SEVERE WEATHER OPERATIONS SHOULD BE ANTICIPATED WEDNESDAY... AND CONSIDER POSSIBLE TRAVEL IMPACTS FOR THURSDAY INTO FRIDAY. WWW.SRH.NOAA.GOV/TULSA CONTAINS ADDITIONAL INFORMATION.
In the hours before
Special weather statement, Dec 23, 3:11 AM CST, 53 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 |
|---|---|---|---|---|
| Dec 22, 8:04 PM CST | Flash Flood Watch | TSA | Adair, Choctaw, Haskell, Latimer, Pushmataha | 34 hr |
| Dec 23, 3:11 AM CST | Special Weather Statement | TSA | Creek | 49 min |
| Dec 23, 3:48 AM CST | Special Weather Statement | TSA | Tulsa | 42 min |
| Dec 23, 10:29 AM CST | Special Weather Statement | TSA | Mayes | 31 min |
| Dec 23, 1:02 PM CST | Special Weather Statement | TSA | Creek | 28 min |
| Dec 23, 2:08 PM CST | Special Weather Statement | TSA | Pittsburg | 52 min |
| Dec 23, 2:31 PM CST | Severe Thunderstorm Warning | TSA | Pittsburg | 33 min |
| Dec 23, 2:42 PM CST | Special Weather Statement | TSA | McIntosh | 33 min |
| Dec 23, 2:44 PM CST | Special Weather Statement | TSA | Nowata | 31 min |
| Dec 23, 3:05 PM CST | Special Weather Statement | TSA | Pittsburg | 25 min |
| Dec 23, 3:27 PM CST | Special Weather Statement | TSA | Craig | 33 min |
| Dec 23, 3:28 PM CST | Special Weather Statement | TSA | Haskell | 47 min |
| Dec 23, 3:41 PM CST | Special Weather Statement | TSA | Nowata, Rogers | 49 min |
| Dec 23, 3:44 PM CST | Special Weather Statement | TSA | Rogers | 46 min |
| Dec 23, 3:55 PM CST | Winter Storm Warning | TSA | Adair, Cherokee, Choctaw, Craig, Creek, Delaware and 16 more | 36 hr |
| Dec 23, 4:24 PM CST | Special Weather Statement | TSA | Craig | 36 min |
Nearby
Winter Storm Watches in Oklahoma, 2009Winter Storm Watches in Arkansas, 2009Every winter storm watch in 2009
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; radar from the NEXRAD Level II archive.