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The Cow Valley fire in rural Oregon

Geosphere Night Microphysics RGB imagery on 11 July 2024, below, shows a signal developing over (what was eventually called) the Cow Valley fire in rural eastern Oregon. The new fire developed just north of the Bonita Springs fire and to the west of the Huntington Mutual Aid fire. A consistent signal... Read More

Geosphere Night Microphysics RGB imagery on 11 July 2024, below, shows a signal developing over (what was eventually called) the Cow Valley fire in rural eastern Oregon. The new fire developed just north of the Bonita Springs fire and to the west of the Huntington Mutual Aid fire. A consistent signal is apparent by 1100 UTC. According to the National Interagency Fire Center (NIFC), the fire was first reported at 1310 UTC, two hours later.

Geosphere Night Microphysics RGB, 1001-1226 UTC on 11 July 2024

GOES-18 imagery from the Geosphere site, below, shows the growth of the smoke pall from the fire. In addition, the bright white reflectance within the smoke suggests occasional development of pyrocumulus clouds.

Geosphere True Color, 1801 11 July 2024 – 0116 UTC 12 July 2024

The image below, from the Watch Duty app, shows the fire perimeter on the evening of 11 July, and also two adjacent fires (Bonita Road to the southwest and Huntington Mutual Aid to the east, both of which can be viewed in the satellite imagery above; Bonita Road is also apparent in imagery below)

Fire information for the Cow Valley Fire, ca. 1800 UTC on 12 July 2024 (Click to enlarge)

The initial Next Generation Fire System (NGFS) detection of this event was at 1111 UTC on 11 July, as shown below. This animation shows how a signal flickered in the area for about 30 minutes before the fire pixels were identified by the NGFS.

NGFS detection at 1111 UTC on 17 July 2024 (Click to enlarge); visible and infrared pixels are show in orange

Once fire pixels have been identified, it is possible (by clicking on a pixel) to probe, as shown below, to determine what kind of fuel is available, and to determine how much urban area is present. The pixels are mostly vegetation, and do not include a Wilderness-Urban interface (WUI).

Probe Details for one of the identified fire pixels (Click to resize)

NUCAPS profiles, in this case from Metop-C, shown below, give information that might help a Incident Meteorologist. In particular, near-dry adiabatic lapse rates in the mid-troposphere might help anticipate the pyrocumulus behavior observed, using either the gridded NUCAPS shown just below, or the individual profiles shown beneath that.

Gridded NUCAPS estimates of lapse rates, 700-500 mb and 400-200 mb, 1730 UTC on 11 July 2024 (Click to enlarge)
GOES-18 Shortwave infrared (Band 7, 3.9 µm) imagery at 0406 UTC on 12 July along with NUCAPS soundings availability with a nominal time of 0408 UTC. Inset: NUCAPS profiles at the locations circled in white (Click to enlarge)

As of 18z on 12 July, this fire has closed US Route 26 in eastern Oregon, from milepost 254 to 231. Forecasts for this area come from the NWS forecast office in Pendleton. The CIMSS Next Generation Fire System website is here. A more recent fire perimeter mapping, below, from the Watch Duty App, valid around 20 UTC on 12 July, shows the significant expansion of the fire.

Watch Duty App mapping of the Cow Valley Fire Perimeter, ca 2000 UTC on 12 July 2024 (Click to enlarge)

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Record Heat in the Pacific Northwest

Oregon has seen triple-digit (o Fahrenheit) heat in early July 2024. (Here are records for 9 July) The animation below shows GOES-18 Land Surface Temperatures on 9 July. This hourly level-2 product is created in clear skies. It shows warmest values between 2100 and 2200 UTC on 9 July 2024. Land Surface Temperature imagery is... Read More

GOES-18 Land Surface Skin Temperature, 1501 UTC 9 July 2024 – 0301 UTC 10 July 2024 (Click to enlarge)

Oregon has seen triple-digit (o Fahrenheit) heat in early July 2024. (Here are records for 9 July) The animation below shows GOES-18 Land Surface Temperatures on 9 July. This hourly level-2 product is created in clear skies. It shows warmest values between 2100 and 2200 UTC on 9 July 2024. Land Surface Temperature imagery is available online at this NOAA website.

GOES-18 Band 7 imagery, below, also presented hourly instead of at its normal 5-minute cadence for the GOES-18 PACUS domain, shows a similar evolution of temperatures. The surface temperatures become just as warm as two fires, one in northern California (the Shelley Fire) and one east of Medford (the Salt Creek Fire).

GOES-18 shortwave infrared (Band 7, 3.9) Brightness Temperature, 1501 UTC 9 July 2024 – 0301 UTC 10 July 2024 (Click to enlarge)

Relief from the heat over western Oregon is shown in the gridded NUCAPS 850-mb temperature field shown below. In contrast to the values around 20oC (in yellow) over eastern Oregon at 0530 UTC on 10 July, values closer to 10oC (in cyan) are over the Pacific Ocean. That cooler airmass will help to temper the heat over western Oregon, but heat on will continue in eastern Oregon.

Metop-C NUCAPS estimates of 850-mn temperature, 0530 UTC on 10 July 2024 (Click to enlarge)

The National Weather Service Offices in Portland, Medford and Pendleton have more information on this event.

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GOES Launch Pad Listing over the Decades

The above wiki image is credited to : “Mark Wade 2003 (text) NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team 2006-09-01 (photo) Borrow-188 and Soumya-8974 (compilation) – This file was derived from: CCAFS.jpg.All the GOES launches have been from Cape Canaveral (FL), but the launch pads used have varied over the decades.... Read More

Map of launch complexes on Merritt Island and Cape Canaveral

The above wiki image is credited to : “Mark Wade 2003 (text) NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team 2006-09-01 (photo) Borrow-188 and Soumya-8974 (compilation) – This file was derived from: CCAFS.jpg.

All the GOES launches have been from Cape Canaveral (FL), but the launch pads used have varied over the decades. Included in the table below are select other historical rocket launches.

RocketLaunch DatePadComments/Earth-viewing Instruments
Explorer I31 January 195826First American Satellite
Explorer 7X16 July 19595Launch failure – Carried Heat Budget sensor
Explorer 713 October 19595First monitoring Earth (Heat Budget)
ATS-1 7 December 196612Spin-Scan Cloud Camera
ATS-3 5 November 196712Multi-color Spin-Scan Cloud Camera
SMS-A (SMS-1)17 May 197417VISSR
SMS-B (SMS-2)6 February 197517
GOES-A (GOES-1)16 October 197517AAlso known as SMS-C
GOES-B (GOES-2)16 June 197717B
GOES-C (GOES-3)16 June 197817B
GOES-D (GOES-4)9 September 198017AVAS
GOES-E (GOES-5)22 May 198117A
GOES-F (GOES-6)28 April 198317A
GOES-G (-)3 May 1986Launch failure
GOES-H (GOES-7)26 February 198717A
GOES-I (GOES-8)13 April 199436BImager and Sounder
GOES-J (GOES-9)23 May 199536B
GOES-K (GOES-10)25 April 199736B
GOES-L (GOES-11)3 May 200036A
GOES-M (GOES-12)23 July 200136A
GOES-N (GOES-13)24 May 200637B
GOES-O (GOES-14)27 June 200937B
GOES-P (GOES-15)4 March 201037B
GOES-Q (-)Spacecraft option not exercised
GOES-R (GOES-16)19 November 201641ABI, GLM, SUVI, etc.
GOES-S (GOES-17)1 March 201841
GOES-T (GOES-18)1 March 202241
GOES-U (GOES-19)25 June 202439A
GeoXOTBDTBDTBD
Table of GOES launches.

The instrument spectral response functions (SRF) for many of the list GEOs are posted on this UW/CIMSS calibration site.

US Geo Launches over the Decades, including the experimental NASA ATS and SMS series. Credit: GEO Program.

H/T

Thanks to all who make the satellite imagery possible, NOAA, NASA, vendors, contractors and Cooperative Institute folks. T. Schmit works for NOAA/NESDIS/STAR and is stationed in Madison, WI.

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Beryl makes landfall along the Texas Gulf Coast

Hurricane Beryl made a (final) landfall along the Texas Gulf Coast, near Matagorda TX, at about 4 AM CDT/0900 UTC on 8 July. VIIRS imagery, above, from the SSEC/CIMSS Direct Broadcast antenna, shows infrared (I05, 11.45 µm) imagery and Day Night Band visible (0.7 µm) imagery around the time of landfall. It is noteworthy that city lights are unable to penetrate the thick clouds (some of the reduction in... Read More

VIIRS I05 Infrared (11.45 µm) and Day Night Band visible (0.7 µm) imagery over Beryl at 0825 UTC on 8 July 2024 (Click to enlarge)

Hurricane Beryl made a (final) landfall along the Texas Gulf Coast, near Matagorda TX, at about 4 AM CDT/0900 UTC on 8 July. VIIRS imagery, above, from the SSEC/CIMSS Direct Broadcast antenna, shows infrared (I05, 11.45 µm) imagery and Day Night Band visible (0.7 µm) imagery around the time of landfall. It is noteworthy that city lights are unable to penetrate the thick clouds (some of the reduction in light intensity might be due to power outages, as shown below from this source).

Reported Power Outages at 1340 UTC on 8 July 2024 (Click to enlarge)

GOES-16 Clean Window imagery overlain with GLM Flash Extent Density, below, shows the evolution of the storm from 0651 UTC through 1321 UTC on 8 July. Subsequent to landfall, the satellite presentation of the storm degrades, as expected. Heavy Rains and Storm Surge along the coast will remain threats through the day on the 8th.

GOES-16 Clean Window (Band 13, 10.3 µm) infrared imagery along with GOES-16 GLM Flash Extent Density, 0651-1321 UTC on 8 July 2024 (Click to enlarge)

For the last hours of her time over the western Gulf of Mexico, Beryl was in a very favorable environment for strengthening. Shear values (source, shown below) were low and SSTs were very warm. Prior to this time, strengthening of Beryl was in part limited by a lack of an inner core, as shown in this microwave (36.5 and 89.0 GHz) toggle from 1916 UTC on 7 July, taken from the direct broadcast site at AOML; unfortunately, the 8 July 2024 morning passes of GCOM did not sample Beryl.

200-850-mb Wind Shear, 0600 UTC on 8 July 2024 (Click to enlarge)

For the latest information on Beryl, refer to the National Hurricane Center and to local National Weather Service offices: Corpus Christi, Houston/Galveston, Lake Charles, Dallas/Fort Worth and Shreveport.

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