Alert archive / Oklahoma / Special Weather Statements in 2021
Special Weather Statement, NWS Tulsa, OK
NWS Tulsa, OK issued this special weather statement at Apr 13, 2021, 4:24 AM CDT for Pittsburg County, Oklahoma. It was in force for 36 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 13, 2021, 4:24 AM CDT (09:24 UTC)
- Expired
- Apr 13, 2021, 5:00 AM CDT
- In force
- 36 min
- Issued by
- NWS Tulsa, OK
County Pittsburg County, OK
The radar
The Norman radar (KTLX), 150 km from the middle of the area, began a volume at 09:25 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
Fort Worth, TX (KFWD), launched 00:00Z, 9.4 hours before the alert went out and 246 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
- 1192 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 1812 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 14 m²/s²
- 0-3 km storm-relative helicity
- 216 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 1.7
The text
As transmitted.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Apr 13, 3:40 AM CDT, 44 minutes earlier.
Area forecast discussion, Apr 13, 3:40 AM CDT, 44 minutes before
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</html>Hazardous weather outlook, Apr 12, 4:46 PM CDT, 11 hours 38 minutes before
Hazardous Weather Outlook National Weather Service Tulsa OK 446 PM CDT Mon Apr 12 2021 ARZ001-002-010-011-019-020-029-OKZ049-053>076-131015- 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- 446 PM CDT Mon Apr 12 2021 This Outlook is for Northwest and West Central Arkansas as well as much of Eastern Oklahoma. .DAY ONE...Through Tonight. THUNDERSTORMS WITH DANGEROUS LIGHTNING. RISK...Limited. AREA...Most of Eastern Oklahoma and Northwest Arkansas. ONSET...This Evening. FIRE WEATHER DANGER. RISK...Limited. AREA...Northeast Oklahoma. ONSET...Ongoing. DISCUSSION... Isolated to scattered thunderstorms are expected to develop by early to mid evening across parts of eastern Oklahoma and into northwest Arkansas. One or two storms may approach severe limits with hail the main threat. Also, grassland fires will still have the potential to rapidly spread into the early evening. However, the fire danger will lessen after sunset as rain chances increase and winds diminish. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... Local Spotter Activation May Be Needed. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. TUESDAY...Thunderstorm Potential. WEDNESDAY through SUNDAY...No Hazards. EXTENDED DISCUSSION... Showers and scattered thunderstorms are forecast to spread across the region Tuesday night into early Wednesday. Severe weather is not expected. The remainder of the forecast through the weekend will feature below normal temperatures and periodic chances of rain. weather.gov/tulsa contains additional information.
In the hours before
Special weather statement, Apr 13, 4:24 AM CDT, 0 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 |
|---|---|---|---|---|
| Apr 12, 7:03 PM CDT | Special Weather Statement | TSA | Sequoyah | 42 min |
| Apr 12, 8:34 PM CDT | Special Weather Statement | TSA | Franklin | 26 min |
| Apr 12, 9:17 PM CDT | Special Weather Statement | TSA | Franklin | 13 min |
Nearby
Special Weather Statements in Oklahoma, 2021Every special weather statement in 2021
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.